Merge branch 'main' into feat/plugin-lifecycle-evts

fix: windows unsubscribed loaded plugin not allowed (#15751 )
# Description  On windows, after installing and loading a plugin, if you try to unsubscribe from a loaded plugin, and on refresh, it will be an orphaned plugin. # Screenshots/Recordings/Graphs  On unsubscribing from a loaded cloud plugin <img width="1418" height="862" alt="image" src="https://github.com/user-attachments/assets/9ba8353c-1645-4b21-86ff-2ed235f4d259" /> On plugin refresh <img width="1418" height="862" alt="image" src="https://github.com/user-attachments/assets/fd58c144-7970-4448-ba3b-e72e52980467" /> ## Tests   [How to Download Pull Requests Artifacts for Testing](https://www.orcaslicer.com/wiki/how_to_download_pr_artifacts)
2026-09-18 14:32:36 +00:00 · 2026-09-18 21:35:09 +08:00 · 2026-09-18 21:32:57 +08:00 · 2026-09-18 18:53:26 +08:00 · 2026-09-18 18:51:50 +08:00 · 2026-09-18 17:24:47 +08:00
56 changed files with 1331 additions and 1041 deletions
@@ -685,6 +685,18 @@ jobs:
          name: OrcaSlicer_profile_validator_Linux_ubuntu_${{ env.ubuntu-ver }}_${{ env.ver }}
          path: './build/src/Release/OrcaSlicer_profile_validator'

+      # generate_system_cache is what scripts/build_preset_cache.sh bakes the
+      # <vendor>.opc caches with; it was already built by the "Build system
+      # preset cache (Linux)" step above. The .opc format is 64-bit
+      # little-endian native, i.e. identical across every platform Orca ships,
+      # so only the Linux binary is published.
+      - name: Upload generate_system_cache Ubuntu
+        if: ${{ ! env.ACT && runner.os == 'Linux' && !vars.SELF_HOSTED && inputs.arch != 'aarch64' }}
+        uses: actions/upload-artifact@v7
+        with:
+          name: generate_system_cache_Linux_ubuntu_${{ env.ubuntu-ver }}_${{ env.ver }}
+          path: './build/src/dev-utils/Release/generate_system_cache'
+
      - name: Deploy Ubuntu release
        if: ${{ github.repository == 'OrcaSlicer/OrcaSlicer' && ! env.ACT && env.deploy_nightly == 'true' && runner.os == 'Linux' && !vars.SELF_HOSTED }}
        uses: WebFreak001/deploy-nightly@v3.2.0
@@ -715,6 +727,17 @@ jobs:
          asset_content_type: application/octet-stream
          max_releases: 1

+      - name: Deploy Ubuntu generate_system_cache release
+        if: ${{ github.repository == 'OrcaSlicer/OrcaSlicer' && ! env.ACT && github.ref == 'refs/heads/main' && runner.os == 'Linux' && !vars.SELF_HOSTED && inputs.arch != 'aarch64' }}
+        uses: WebFreak001/deploy-nightly@v3.2.0
+        with:
+          upload_url: https://uploads.github.com/repos/OrcaSlicer/OrcaSlicer/releases/137995723/assets{?name,label}
+          release_id: 137995723
+          asset_path: ./build/src/dev-utils/Release/generate_system_cache
+          asset_name: generate_system_cache_Linux${{ env.ubuntu-ver-str }}_nightly
+          asset_content_type: application/octet-stream
+          max_releases: 1
+
      - name: Deploy orca_custom_preset_tests
        if: ${{ github.repository == 'OrcaSlicer/OrcaSlicer' && ! env.ACT && github.ref == 'refs/heads/main' && runner.os == 'Linux' && !vars.SELF_HOSTED && inputs.arch != 'aarch64' }}
        uses: WebFreak001/deploy-nightly@v3.2.0
@@ -0,0 +1,253 @@
+name: Post-merge profiles
+
+# Push-triggered counterpart to check_profiles.yml (which only gates PRs). When a
+# profile change lands on main or a release branch, rebuild the affected vendors'
+# binary preset caches (<vendor>.opc) and publish each as a versioned ZIP asset on
+# a per-Orca-version release of the profiles repo. From there OrcaCloud's OTA
+# Manager lists the asset, a maintainer attaches a changelog and hits Publish, and
+# only then does it become a live OTA update - this workflow does none of that
+# last part (no changelog, no R2, no webhook).
+#
+# Asset contract expected by OrcaCloud's release scanner:
+#   ^(\d+\.\d+\.\d+)_([^_]+)_(\d+(?:\.\d+){3})_(\d{12})\.zip$
+#     <orca_ver>_<vendor>_<profile_version>_<UTC yyyymmddHHMM>.zip   (zip root: <vendor>.opc)
+#
+# Setup (App + secrets): docs/ota/post-merge-profiles-setup.md
+
+on:
+  push:
+    branches:
+    - main
+    - release/*
+    paths:
+    - 'resources/profiles/**'
+    - '.github/workflows/post_merge_profiles.yml'
+
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# One run per branch; let a run finish rather than cancel it, since it publishes.
+concurrency:
+  group: post-merge-profiles-${{ github.ref }}
+  cancel-in-progress: false
+
+env:
+  # generate_system_cache is published to this repo's own nightly-builds release
+  # by build_orca.yml's Linux leg. The job guard pins github.repository to
+  # OrcaSlicer/OrcaSlicer, so this resolves there.
+  TOOL_REPO: ${{ github.repository }}
+  TOOL_ASSET: generate_system_cache_Linux_Ubuntu2404_nightly
+  # Where per-vendor ZIP assets are published; OrcaCloud's OTA reads this repo.
+  PROFILES_OWNER: OrcaSlicer
+  PROFILES_REPO: orcaslicer-profiles
+
+jobs:
+  publish_profile_caches:
+    name: Publish profile caches
+    if: ${{ github.repository == 'OrcaSlicer/OrcaSlicer' }}
+    # FOLDER_MERGERS is an environment-scoped variable, shared with the PR
+    # merge bot. Keep this environment free of protection rules so this
+    # push-triggered job does not wait for a reviewer.
+    environment: merge-delegation
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v7
+        with:
+          # Enough history to reach github.event.before for the changed-vendor
+          # diff on a normal push; deeper pushes fall back to HEAD^..HEAD in the
+          # step below. fetch-depth: 0 would clone all of OrcaSlicer's history.
+          fetch-depth: 50
+
+      - name: Resolve changed vendors
+        id: vendors
+        shell: bash
+        env:
+          FOLDER_MERGERS: ${{ vars.FOLDER_MERGERS }}
+        run: |
+          set -euo pipefail
+          base='${{ github.event.before }}'
+          head='${{ github.sha }}'
+          # Zero SHA (branch created / force push) or manual dispatch: fall back
+          # to this commit's own diff.
+          if [ -z "$base" ] || [ "$base" = "0000000000000000000000000000000000000000" ] || ! git cat-file -e "$base^{commit}" 2>/dev/null; then
+            base="$head^"
+          fi
+          echo "Diffing $base..$head"
+
+          mapfile -t candidates < <(
+            git diff --name-only "$base" "$head" -- resources/profiles \
+              | sed -nE 's#^resources/profiles/([^/]+)/.*#\1#p; s#^resources/profiles/([^/]+)\.json$#\1#p' \
+              | sort -u
+          )
+
+          vendors=()
+          for v in "${candidates[@]:-}"; do
+            [ -n "$v" ] || continue
+            json="resources/profiles/$v.json"
+            # A vendor has a manifest plus either a preset directory or a version
+            # field; this drops non-vendor files such as blacklist.json.
+            if [ -f "$json" ] && { [ -d "resources/profiles/$v" ] || jq -e '.version' "$json" >/dev/null 2>&1; }; then
+              vendors+=("$v")
+            fi
+          done
+
+          if [ "${#vendors[@]}" -eq 0 ]; then
+            echo "No changed vendor profiles in this push; nothing to publish."
+            echo "vendors=" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          # A vendor is eligible only when both the profile directory and its
+          # sibling bundle JSON are covered by at least one FOLDER_MERGERS
+          # grant. The account part is intentionally ignored here: this is a
+          # post-merge safety check, not an authorization check for a command.
+          grants=()
+          while IFS= read -r raw_line; do
+            line="${raw_line#"${raw_line%%[![:space:]]*}"}"
+            line="${line%"${line##*[![:space:]]}"}"
+            [ -n "$line" ] || continue
+            [[ "$line" == \#* ]] && continue
+            [[ "$line" == *:* ]] || continue
+
+            grant="${line#*:}"
+            grant="${grant#"${grant%%[![:space:]]*}"}"
+            grant="${grant%"${grant##*[![:space:]]}"}"
+            while [[ "$grant" == */ ]]; do grant="${grant%/}"; done
+            grants+=("$grant")
+          done <<< "${FOLDER_MERGERS:-}"
+
+          is_granted() {
+            local path="$1"
+            local grant
+            for grant in "${grants[@]:-}"; do
+              if [[ "$path" == "$grant" || "$path" == "$grant/"* ]]; then
+                return 0
+              fi
+            done
+            return 1
+          }
+
+          unauthorized=()
+          for v in "${vendors[@]}"; do
+            if ! is_granted "resources/profiles/$v" || ! is_granted "resources/profiles/$v.json"; then
+              unauthorized+=("$v")
+            fi
+          done
+
+          if [ "${#unauthorized[@]}" -ne 0 ]; then
+            echo "Changed vendor profiles are not covered by FOLDER_MERGERS: ${unauthorized[*]}"
+            echo "No profile caches will be published for this push."
+            echo "vendors=" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          printf 'Changed vendors: %s\n' "${vendors[*]}"
+          echo "vendors=${vendors[*]}" >> "$GITHUB_OUTPUT"
+
+      - name: Resolve Orca version
+        id: orca
+        if: steps.vendors.outputs.vendors != ''
+        shell: bash
+        run: |
+          set -euo pipefail
+          raw="$(sed -nE 's/^set\(SoftFever_VERSION "([^"]+)".*/\1/p' version.inc | head -1)"
+          [ -n "$raw" ] || { echo "::error::could not read SoftFever_VERSION from version.inc"; exit 1; }
+          orca_ver="${raw%%-*}"
+          if ! [[ "$orca_ver" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+            echo "::error::Orca version '$orca_ver' (from '$raw') is not X.Y.Z"; exit 1
+          fi
+          # release_tag is what the desktop client sends as orca_version and what
+          # OrcaCloud keys R2 on; orca_ver (X.Y.Z) is the asset-name prefix.
+          echo "release_tag=$raw" >> "$GITHUB_OUTPUT"
+          echo "orca_ver=$orca_ver" >> "$GITHUB_OUTPUT"
+          echo "Orca version: release_tag=$raw asset_prefix=$orca_ver"
+
+      - name: Validate profile versions
+        id: pver
+        if: steps.vendors.outputs.vendors != ''
+        shell: bash
+        run: |
+          set -euo pipefail
+          : > "$RUNNER_TEMP/pver.tsv"
+          for v in ${{ steps.vendors.outputs.vendors }}; do
+            pv="$(jq -r '.version // empty' "resources/profiles/$v.json")"
+            if ! [[ "$pv" =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+              echo "::error::vendor $v version '${pv:-<none>}' must be 4 numeric parts (A.B.C.D) for the OTA asset name; fix resources/profiles/$v.json"
+              exit 1
+            fi
+            printf '%s\t%s\n' "$v" "$pv" >> "$RUNNER_TEMP/pver.tsv"
+            echo "$v -> $pv"
+          done
+
+      - name: Download generate_system_cache
+        if: steps.vendors.outputs.vendors != ''
+        shell: bash
+        env:
+          # gh (with the default token) rather than an unauthenticated curl: keeps
+          # working if TOOL_REPO is ever private and avoids anonymous rate limits.
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set -euo pipefail
+          gh release download nightly-builds --repo "$TOOL_REPO" \
+            --pattern "$TOOL_ASSET" --output generate_system_cache --clobber
+          chmod +x generate_system_cache
+
+      - name: Build caches and package assets
+        id: pkg
+        if: steps.vendors.outputs.vendors != ''
+        shell: bash
+        run: |
+          set -euo pipefail
+          # One timestamp for the whole run so a multi-vendor merge groups together.
+          ts="$(date -u +%Y%m%d%H%M)"
+          orca_ver='${{ steps.orca.outputs.orca_ver }}'
+          out="$RUNNER_TEMP/assets"
+          mkdir -p "$out"
+
+          for v in ${{ steps.vendors.outputs.vendors }}; do
+            ./generate_system_cache -p "$GITHUB_WORKSPACE/resources/profiles" -v "$v" -l 2
+            opc="resources/profiles/$v.opc"
+            [ -f "$opc" ] || { echo "::error::$opc was not generated"; exit 1; }
+            pv="$(awk -F'\t' -v v="$v" '$1==v{print $2}' "$RUNNER_TEMP/pver.tsv")"
+            name="${orca_ver}_${v}_${pv}_${ts}.zip"
+            ( cd resources/profiles && zip -q -j "$out/$name" "$v.opc" )
+            echo "packaged $name"
+          done
+          echo "dir=$out" >> "$GITHUB_OUTPUT"
+
+      - name: Mint profiles-repo token
+        id: token
+        if: steps.vendors.outputs.vendors != ''
+        uses: actions/create-github-app-token@v1
+        with:
+          app-id: ${{ secrets.PROFILES_APP_ID }}
+          private-key: ${{ secrets.PROFILES_APP_PRIVATE_KEY }}
+          owner: ${{ env.PROFILES_OWNER }}
+          repositories: ${{ env.PROFILES_REPO }}
+
+      - name: Publish assets to profiles release
+        if: steps.vendors.outputs.vendors != ''
+        shell: bash
+        env:
+          GH_TOKEN: ${{ steps.token.outputs.token }}
+          RELEASE_TAG: ${{ steps.orca.outputs.release_tag }}
+          ASSET_DIR: ${{ steps.pkg.outputs.dir }}
+        run: |
+          set -euo pipefail
+          repo="$PROFILES_OWNER/$PROFILES_REPO"
+          if ! gh release view "$RELEASE_TAG" --repo "$repo" >/dev/null 2>&1; then
+            echo "Creating release $RELEASE_TAG on $repo"
+            gh release create "$RELEASE_TAG" --repo "$repo" \
+              --title "$RELEASE_TAG" --notes "Profile cache assets for Orca $RELEASE_TAG." \
+              --latest=false
+          fi
+          # Asset names are timestamp-unique; a clash means a bug, so don't --clobber.
+          gh release upload "$RELEASE_TAG" --repo "$repo" "$ASSET_DIR"/*.zip
+
+          {
+            echo "### Published to \`$repo\` release \`$RELEASE_TAG\`"
+            for f in "$ASSET_DIR"/*.zip; do echo "- \`$(basename "$f")\`"; done
+          } >> "$GITHUB_STEP_SUMMARY"
@@ -292,5 +292,6 @@ src/slic3r/GUI/AMSDryControl.cpp
 src/slic3r/GUI/AMSDryControl.hpp
 src/libslic3r/PresetBundle.cpp
 src/slic3r/GUI/CAD/DesignPanel.cpp
+src/slic3r/GUI/CAD/SketchInlineEditor.cpp
 src/slic3r/GUI/Gizmos/GLGizmoPrimitive.cpp
 src/slic3r/GUI/Gizmos/GLGizmoSketch.cpp
@@ -1,146 +0,0 @@
-# /// script
-# requires-python = ">=3.12"
-#
-# [tool.orcaslicer.plugin]
-# name = "Dock Panel Demo"
-# description = "Opens a dockable panel beside the 3D view that lists the objects on the plate."
-# author = "OrcaSlicer"
-# version = "0.0.1"
-# ///
-"""Dock Panel Demo -- orca.host.ui.create_dock_panel().
-
-Run it from the Plugins dialog. It opens an HTML panel docked on the right of the 3D view, in the
-same dock area as the sidebar. Drag its caption to dock it on another side (or float it, where the
-platform allows), hide it from the page and run the plugin again to bring it back, or close it with
-its close button or from the page.
-
-  page   --orca.postMessage({command: 'refresh'})-->  plugin.on_message()
-  page   --orca.postMessage({command: 'hide'})-->     plugin.on_message() -> panel.hide()
-  page   --orca.close()-->                            panel closes, plugin.on_close()
-  plugin --panel.post({command: 'objects', ...})-->   page (orca.onMessage)
-"""
-import orca
-
-PAGE = """
-<style>
-  body { margin: 0; padding: 12px; font-size: 13px; }
-  h3 { margin: 0 0 4px; font-size: 14px; }
-  .note { margin: 0 0 12px; color: var(--orca-muted); font-size: 12px; }
-  .actions { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
-  .actions button.quiet { background: transparent; color: var(--orca-fg); border-color: var(--orca-border); }
-  table { width: 100%; border-collapse: collapse; }
-  td.count { text-align: right; font-variant-numeric: tabular-nums; }
-  #status { margin-top: 10px; color: var(--orca-muted); font-size: 12px; }
-</style>
-
-<h3>Objects on the plate</h3>
-<p class="note">Docked beside the 3D view. Drag the caption to move it.</p>
-
-<div class="actions">
-  <button type="button" id="refresh">Refresh</button>
-  <button type="button" id="hide" class="quiet">Hide</button>
-  <button type="button" id="close" class="quiet">Close</button>
-</div>
-
-<table>
-  <thead><tr><th>Name</th><th>Parts</th><th>Copies</th></tr></thead>
-  <tbody id="rows"></tbody>
-</table>
-<p id="status">Waiting for the plugin...</p>
-
-<script>
-(function () {
-  function text(value) {
-    var span = document.createElement("span");
-    span.textContent = value;
-    return span.innerHTML;
-  }
-
-  function render(message) {
-    var rows = document.getElementById("rows");
-    var status = document.getElementById("status");
-    if (message.error) {
-      rows.innerHTML = "";
-      status.textContent = message.error;
-      return;
-    }
-    rows.innerHTML = message.objects.map(function (object) {
-      return "<tr><td>" + text(object.name) + "</td><td class=\\"count\\">" + object.volumes +
-             "</td><td class=\\"count\\">" + object.instances + "</td></tr>";
-    }).join("");
-    status.textContent = message.objects.length + " object(s), refreshed " + new Date().toLocaleTimeString();
-  }
-
-  orca.onMessage(function (message) {
-    if (message && message.command === "objects")
-      render(message);
-  });
-
-  document.getElementById("refresh").addEventListener("click", function () {
-    orca.postMessage({ command: "refresh" });
-  });
-  document.getElementById("hide").addEventListener("click", function () {
-    orca.postMessage({ command: "hide" });
-  });
-  document.getElementById("close").addEventListener("click", function () {
-    orca.close();
-  });
-
-  orca.postMessage({ command: "refresh" });
-})();
-</script>
-"""
-
-
-def plate_objects():
-    try:
-        model = orca.host.model()
-    except RuntimeError as error:
-        return {"command": "objects", "error": str(error)}
-    return {
-        "command": "objects",
-        "objects": [
-            {"name": obj.name or "(unnamed)", "volumes": obj.volume_count(), "instances": obj.instance_count()}
-            for obj in model.objects()
-        ],
-    }
-
-
-class DockPanelDemo(orca.script.ScriptPluginCapabilityBase):
-    panel = None
-
-    def get_name(self):
-        return "Dock Panel Demo"
-
-    def execute(self):
-        # The capability instance lives as long as the plugin, so a second run finds the open panel.
-        if self.panel is not None and self.panel.is_open():
-            self.panel.show()
-            return orca.ExecutionResult.success("Dock Panel Demo is already open.")
-        self.panel = orca.host.ui.create_dock_panel(
-            html=PAGE,
-            title="Dock Panel Demo",
-            width=320,
-            height=480,
-            on_message=self.on_message,
-            on_close=self.on_close,
-            dock="right",
-        )
-        return orca.ExecutionResult.success("Dock Panel Demo opened.")
-
-    # Called on the UI thread when the page posts.
-    def on_message(self, message):
-        command = (message or {}).get("command")
-        if command == "refresh":
-            self.panel.post(plate_objects())
-        elif command == "hide":
-            self.panel.hide()
-
-    def on_close(self):
-        self.panel = None
-
-
-@orca.plugin
-class DockPanelDemoPlugin(orca.base):
-    def register_capabilities(self):
-        orca.register_capability(DockPanelDemo)
@@ -23,7 +23,8 @@ int main(int argc, char* argv[])
 #else
        ("path,p", po::value<std::string>()->default_value("../../../resources/profiles"), "Path to profiles directory")
 #endif
-        ("log_level,l", po::value<int>()->default_value(2), "Log level (0=trace, 2=info, 4=error)");
+        ("log_level,l", po::value<int>()->default_value(2), "Log level (0=trace, 2=info, 4=error)")
+        ("vendor,v", po::value<std::string>()->default_value(""), "Vendor name. Optional; generate the cache for this vendor only (the Orca filament library is always included as the inheritance base). All vendors if not specified.");
    // clang-format on

    po::variables_map vm;
@@ -38,6 +39,7 @@ int main(int argc, char* argv[])

    const std::string profiles_path = vm["path"].as<std::string>();
    const int         log_level     = vm["log_level"].as<int>();
+    const std::string vendor        = vm["vendor"].as<std::string>();

    if (!fs::exists(profiles_path) || !fs::is_directory(profiles_path)) {
        std::cerr << "Error: '" << profiles_path << "' is not a valid directory\n";
@@ -59,8 +61,12 @@ int main(int argc, char* argv[])
    preset_bundle->set_is_validation_mode(true);
    preset_bundle->set_default_suppressed(true);
    preset_bundle->set_generate_vendor_caches(true);
+    // Empty == every vendor. Otherwise only this vendor (plus the always-loaded
+    // Orca filament library) is parsed, so only its <vendor>.opc is written.
+    preset_bundle->set_vendor_to_validate(vendor);

-    std::cout << "Loading system presets from: " << profiles_path << "\n";
+    std::cout << "Loading system presets from: " << profiles_path
+              << (vendor.empty() ? "" : " (vendor: " + vendor + ")") << "\n";

    try {
        // In validation mode data_dir() is the profiles directory set above, so the
@@ -71,6 +77,14 @@ int main(int argc, char* argv[])
        return 1;
    }

+    // A specific vendor must have produced its own cache; the always-loaded
+    // filament library alone would otherwise mask a misspelt or removed name.
+    if (!vendor.empty() && !fs::exists(fs::path(profiles_path) / (vendor + ".opc"))) {
+        std::cerr << "No cache was generated for vendor '" << vendor << "' under " << profiles_path
+                  << " - check the vendor name.\n";
+        return 1;
+    }
+
    size_t cache_count = 0;
    for (auto& entry : fs::directory_iterator(profiles_path))
        if (boost::iends_with(entry.path().string(), ".opc"))
@@ -8,6 +8,7 @@
 #include "I18N.hpp"
 #include "GCode.hpp"
 #include "Exception.hpp"
+#include "LifecycleEvents.hpp"
 #include "ExtrusionEntity.hpp"
 #include "EdgeGrid.hpp"
 #include "Geometry/ConvexHull.hpp"
@@ -2476,6 +2477,14 @@ void GCode::do_export(Print* print, const char* path, GCodeProcessorResult* resu
    m_writer.set_is_bbl_machine(print->is_BBL_printer());
    print->set_started(psGCodeExport);

+    {
+        LifecycleEventContext ctx;
+        ctx.name = std::to_string(print->model().id().id);
+        ctx.code = LifecycleEvtCode::Ok;
+        ctx.msg  = path;
+        fire_lifecycle_event(LifecycleEvent::GCodeExportStarted, ctx);
+    }
+
    // check if any custom gcode contains keywords used by the gcode processor to
    // produce time estimation and gcode toolpaths
    std::vector<std::pair<std::string, std::string>> validation_res = DoExport::validate_custom_gcode(*print);
@@ -2511,12 +2520,22 @@ void GCode::do_export(Print* print, const char* path, GCodeProcessorResult* resu
    m_processor.set_print(print);
    GCodeOutputStream file(boost::nowide::fopen(path_tmp.c_str(), "wb"), m_processor);
    if (! file.is_open()) {
-        BOOST_LOG_TRIVIAL(error) << std::string("G-code export to ") + path + " failed.\nCannot open the file for writing.\n" << std::endl;
+        std::string err_msg = std::string("G-code export to ") + path + " failed.\nCannot open the file for writing.\n";
+        BOOST_LOG_TRIVIAL(error) << err_msg << std::endl;
        if (!fs::exists(folder)) {
            //fs::create_directory(folder);
-            BOOST_LOG_TRIVIAL(error) << "the parent path " + folder.string() +" is not there!!!" << std::endl;
+            std::string add_err_msg = "the parent path " + folder.string() +" is not there!!!";
+            BOOST_LOG_TRIVIAL(error) << add_err_msg << std::endl;
+            err_msg += add_err_msg;
        }
-        throw Slic3r::RuntimeError(std::string("G-code export to ") + path + " failed.\nCannot open the file for writing.\n");
+        {
+            LifecycleEventContext ctx;
+            ctx.name = std::to_string(print->model().id().id);
+            ctx.code = LifecycleEvtCode::Error;
+            ctx.msg  = std::string(path) + "\n" + err_msg;
+            fire_lifecycle_event(LifecycleEvent::GCodeExportFinished, ctx);
+        }
+        throw Slic3r::RuntimeError(err_msg);
    }

    try {
@@ -2527,11 +2546,18 @@ void GCode::do_export(Print* print, const char* path, GCodeProcessorResult* resu
            boost::nowide::remove(path_tmp.c_str());
            throw Slic3r::RuntimeError(std::string("G-code export to ") + path + " failed\nIs the disk full?\n");
        }
-    } catch (std::exception & /* ex */) {
+    } catch (std::exception &ex) {
        // Rethrow on any exception. std::runtime_exception and CanceledException are expected to be thrown.
        // Close and remove the file.
        file.close();
        boost::nowide::remove(path_tmp.c_str());
+        {
+            LifecycleEventContext ctx;
+            ctx.name = std::to_string(print->model().id().id);
+            ctx.code = LifecycleEvtCode::Error;
+            ctx.msg  = std::string(path) + "\n" + ex.what();
+            fire_lifecycle_event(LifecycleEvent::GCodeExportFinished, ctx);
+        }
        throw;
    }
    file.close();
@@ -2637,6 +2663,13 @@ void GCode::do_export(Print* print, const char* path, GCodeProcessorResult* resu

    std::error_code ret = rename_file(path_tmp, path);
    if (ret) {
+        {
+            LifecycleEventContext ctx;
+            ctx.name = std::to_string(print->model().id().id);
+            ctx.code = LifecycleEvtCode::Error;
+            ctx.msg  = std::string(path) + "\nFailed to rename the output G-code file: " + ret.message();
+            fire_lifecycle_event(LifecycleEvent::GCodeExportFinished, ctx);
+        }
        throw Slic3r::RuntimeError(
            std::string("Failed to rename the output G-code file from ") + path_tmp + " to " + path + '\n' + "error code " + ret.message() + '\n' +
            "Is " + path_tmp + " locked?" + '\n');
@@ -2647,7 +2680,15 @@ void GCode::do_export(Print* print, const char* path, GCodeProcessorResult* resu

    BOOST_LOG_TRIVIAL(info) << "Exporting G-code finished" << log_memory_info();
    print->set_done(psGCodeExport);
-    
+
+    {
+        LifecycleEventContext ctx;
+        ctx.name = std::to_string(print->model().id().id);
+        ctx.code = LifecycleEvtCode::Ok;
+        ctx.msg  = path;
+        fire_lifecycle_event(LifecycleEvent::GCodeExportFinished, ctx);
+    }
+
    // Orca: label_object_enabled reflects whether objects are labeled in the g-code (EXCLUDE_OBJECT /
    // M486), which is driven by exclude_object for every printer
    if(result != nullptr)
@@ -0,0 +1,181 @@
+#pragma once
+
+// LifecycleEvents.hpp
+// --------------------
+// Application lifecycle events (project, slicing, plate editing, preset, printer connection, and
+// job activity) that other subsystems -- chiefly the plugin layer above libslic3r -- may want to
+// observe. Lives in libslic3r rather than the plugin layer because some events fire from inside
+// the slicing engine itself; see fire_lifecycle_event() below.
+
+#include <functional>
+#include <string>
+#include <utility>
+
+namespace Slic3r
+{
+    enum class LifecycleEvent {
+        // Project (3mf)
+        NewProject,
+        ProjectOpened,
+        ProjectBeforeSave,
+        ProjectAfterSave,
+        ProjectClosed,
+        ProjectDirtyChanged,
+
+        // Slicing pipeline
+        SliceStarted,
+        SliceGeometryFinished,
+        GCodeExportStarted,
+        GCodeExportFinished,
+        SlicingJobComplete,
+
+        // Plate/model editing
+        ObjectAdded,
+        ObjectDeleted,
+        ObjectTransformed,
+        ObjectChanged,
+        ObjectRenamed,
+        PlateCreated,
+        PlateDeleted,
+        PlateSelected,
+        PlateRenamed,
+
+        // Preset
+        PresetSelected,
+        PresetSaved,
+
+        // Printer/device
+        PrintStateChanged,
+        DeviceOnlineChanged,
+        DeviceDiscovered,
+        DeviceSelected,
+        DeviceConnected,
+        DeviceDisconnected,
+        UploadStarted,
+        UploadFinished,
+
+        // Print/send jobs
+        PrintJobStarted,
+        PrintJobFinished,
+        SendJobStarted,
+        SendJobFinished,
+    };
+
+    // Scoped so callers must qualify (LifecycleEvtCode::Error, not ERROR) -- ERROR/OK collide with
+    // Windows macros (wingdi.h) as unqualified names.
+    enum class LifecycleEvtCode { Ok, Error, Warn };
+
+    struct LifecycleEventContext
+    {
+        // The primary subject identifier for the event. This is event-specific (for example, a
+        // project/output path, preset name, device id, or object name), must not contain status or
+        // prose, and may be empty when the event has no single subject.
+        std::string name;
+
+        // Outcome of the operation represented by the event. For state-change and start events,
+        // Ok means that the event occurred; it does not imply that a future operation succeeded.
+        LifecycleEvtCode code = LifecycleEvtCode::Ok;
+
+        // Optional human-readable detail or diagnostic text. It is not a stable parsing contract;
+        // machine-readable data should be represented by a dedicated field or event instead.
+        std::string msg;
+
+        // Stable subject/object identifier, when the source model provides one.
+        std::string id;
+
+        // Previous value for rename and other before/after events.
+        std::string previous_name;
+
+        // Device identifier for printer and job events.
+        std::string device_id;
+
+        // Job identifier when the originating queue/task provides one.
+        std::string job_id;
+
+        // Source subsystem or operation detail, suitable for filtering but not guaranteed to be
+        // exhaustive across versions.
+        std::string source;
+
+        // Plate, object, or volume index when the source uses an index rather than a stable id.
+        int index = -1;
+
+        // Aggregate project dirty state for ProjectDirtyChanged.
+        bool dirty = false;
+    };
+
+    inline std::string lifecycle_event_to_string(LifecycleEvent event)
+    {
+        switch (event) {
+        case LifecycleEvent::NewProject: return "NewProject";
+        case LifecycleEvent::ProjectOpened: return "ProjectOpened";
+        case LifecycleEvent::ProjectBeforeSave: return "ProjectBeforeSave";
+        case LifecycleEvent::ProjectAfterSave: return "ProjectAfterSave";
+        case LifecycleEvent::ProjectClosed: return "ProjectClosed";
+        case LifecycleEvent::ProjectDirtyChanged: return "ProjectDirtyChanged";
+
+        case LifecycleEvent::SliceStarted: return "SliceStarted";
+        case LifecycleEvent::SliceGeometryFinished: return "SliceGeometryFinished";
+        case LifecycleEvent::GCodeExportStarted: return "GCodeExportStarted";
+        case LifecycleEvent::GCodeExportFinished: return "GCodeExportFinished";
+        case LifecycleEvent::SlicingJobComplete: return "SlicingJobComplete";
+
+        case LifecycleEvent::ObjectAdded: return "ObjectAdded";
+        case LifecycleEvent::ObjectDeleted: return "ObjectDeleted";
+        case LifecycleEvent::ObjectTransformed: return "ObjectTransformed";
+        case LifecycleEvent::ObjectChanged: return "ObjectChanged";
+        case LifecycleEvent::ObjectRenamed: return "ObjectRenamed";
+        case LifecycleEvent::PlateCreated: return "PlateCreated";
+        case LifecycleEvent::PlateDeleted: return "PlateDeleted";
+        case LifecycleEvent::PlateSelected: return "PlateSelected";
+        case LifecycleEvent::PlateRenamed: return "PlateRenamed";
+
+        case LifecycleEvent::PresetSelected: return "PresetSelected";
+        case LifecycleEvent::PresetSaved: return "PresetSaved";
+        case LifecycleEvent::PrintStateChanged: return "PrintStateChanged";
+
+        case LifecycleEvent::DeviceOnlineChanged: return "DeviceOnlineChanged";
+        case LifecycleEvent::DeviceDiscovered: return "DeviceDiscovered";
+        case LifecycleEvent::DeviceSelected: return "DeviceSelected";
+        case LifecycleEvent::DeviceConnected: return "DeviceConnected";
+        case LifecycleEvent::DeviceDisconnected: return "DeviceDisconnected";
+
+        case LifecycleEvent::UploadStarted: return "UploadStarted";
+        case LifecycleEvent::UploadFinished: return "UploadFinished";
+        case LifecycleEvent::PrintJobStarted: return "PrintJobStarted";
+        case LifecycleEvent::PrintJobFinished: return "PrintJobFinished";
+        case LifecycleEvent::SendJobStarted: return "SendJobStarted";
+        case LifecycleEvent::SendJobFinished: return "SendJobFinished";
+        default: return "Unknown";
+        }
+    }
+
+    inline std::string lifecycle_evt_code_to_string(LifecycleEvtCode code)
+    {
+        switch (code) {
+        case LifecycleEvtCode::Ok: return "Ok";
+        case LifecycleEvtCode::Error: return "Error";
+        case LifecycleEvtCode::Warn: return "Warn";
+        default: return "Unknown";
+        }
+    }
+
+    // Global cross-layer seam (mirrors ConfigBase::set_resolve_capability_fn): any libslic3r code can
+    // fire a lifecycle event without depending on the plugin layer above it, which installs the
+    // dispatcher here at startup. Not tied to Print/GCode specifically, since nothing here should
+    // require callers to hold a Print& just to report an event.
+    using LifecycleHookFn = std::function<void(LifecycleEvent, const LifecycleEventContext&)>;
+
+    inline LifecycleHookFn& lifecycle_hook_fn()
+    {
+        static LifecycleHookFn fn;
+        return fn;
+    }
+
+    inline void set_lifecycle_hook_fn(LifecycleHookFn fn) { lifecycle_hook_fn() = std::move(fn); }
+
+    inline void fire_lifecycle_event(LifecycleEvent event, const LifecycleEventContext& ctx)
+    {
+        if (const LifecycleHookFn& fn = lifecycle_hook_fn(); fn)
+            fn(event, ctx);
+    }
+}
@@ -47,6 +47,7 @@
 #include <boost/log/trivial.hpp>

 #include "libslic3r.h"
+#include "LifecycleEvents.hpp"
 #include "Utils.hpp"
 #include "Time.hpp"
 #include "PlaceholderParser.hpp"
@@ -2972,6 +2973,7 @@ void PresetCollection::save_current_preset(const std::string &new_name, bool det
    // 1) Find the preset with a new_name or create a new one,
    // initialize it with the edited config.
    auto it = this->find_preset_internal(new_name);
+    const bool preset_existed = (it != m_presets.end() && it->name == new_name);
    if (it != m_presets.end() && it->name == new_name) {
        // Preset with the same name found.
        Preset &preset = *it;
@@ -3079,6 +3081,14 @@ void PresetCollection::save_current_preset(const std::string &new_name, bool det
        this->get_selected_preset().save(&(parent_preset->config));
    else
        this->get_selected_preset().save(nullptr);
+
+    {
+        LifecycleEventContext ctx;
+        ctx.name  = new_name;
+        ctx.msg = preset_existed ? "overwrite" : "new";
+        ctx.code = LifecycleEvtCode::Ok;
+        fire_lifecycle_event(LifecycleEvent::PresetSaved, ctx);
+    }
 }

 // A detached standalone preset for the Full Publish receiver: create a user preset holding
@@ -14,6 +14,7 @@
 #include "Flow.hpp"
 #include "Geometry/ConvexHull.hpp"
 #include "I18N.hpp"
+#include "LifecycleEvents.hpp"
 #include "ShortestPath.hpp"
 #include "Thread.hpp"
 #include "Time.hpp"
@@ -2694,6 +2695,13 @@ void Print::process(long long *time_cost_with_cache, bool use_cache)
    if (m_objects.empty())
        return;

+    {
+        LifecycleEventContext ctx;
+        ctx.name = std::to_string(m_model.id().id);
+        ctx.code = LifecycleEvtCode::Ok;
+        fire_lifecycle_event(LifecycleEvent::SliceStarted, ctx);
+    }
+
    for (PrintObject *obj : m_objects)
        obj->clear_shared_object();

@@ -3312,6 +3320,13 @@ void Print::process(long long *time_cost_with_cache, bool use_cache)
    }

    BOOST_LOG_TRIVIAL(info) << "Slicing process finished." << log_memory_info();
+
+    {
+        LifecycleEventContext ctx;
+        ctx.name = std::to_string(m_model.id().id);
+        ctx.code = LifecycleEvtCode::Ok;
+        fire_lifecycle_event(LifecycleEvent::SliceGeometryFinished, ctx);
+    }
 }

 // G-code export process, running at a background thread.
@@ -4911,6 +4926,14 @@ void Print::set_gcode_file_invalidated()
 //BBS: add gcode file preload logic
 void Print::export_gcode_from_previous_file(const std::string& file, GCodeProcessorResult* result, ThumbnailsGeneratorCallback thumbnail_cb)
 {
+    {
+        LifecycleEventContext ctx;
+        ctx.name = std::to_string(m_model.id().id);
+        ctx.code = LifecycleEvtCode::Ok;
+        ctx.msg  = file;
+        fire_lifecycle_event(LifecycleEvent::GCodeExportStarted, ctx);
+    }
+
    try {
        GCodeProcessor processor;
        GCodeProcessor::s_IsBBLPrinter = is_BBL_printer();
@@ -4930,13 +4953,28 @@ void Print::export_gcode_from_previous_file(const std::string& file, GCodeProces
        *result = std::move(processor.extract_result());
        result->filament_change_sequence = filament_seq_loaded;
        result->nozzle_change_sequence   = nozzle_seq_loaded;
-    } catch (std::exception & /* ex */) {
+    } catch (std::exception &ex) {
        BOOST_LOG_TRIVIAL(error) << __FUNCTION__ <<  boost::format(": found errors when process gcode file %1%") %file.c_str();
+        {
+            LifecycleEventContext ctx;
+            ctx.name = std::to_string(m_model.id().id);
+            ctx.code = LifecycleEvtCode::Error;
+            ctx.msg  = file + "\n" + ex.what();
+            fire_lifecycle_event(LifecycleEvent::GCodeExportFinished, ctx);
+        }
        throw Slic3r::RuntimeError(
            std::string("Failed to process the G-code file ") + file + " from previous 3mf\n");
    }

    BOOST_LOG_TRIVIAL(info) << __FUNCTION__ <<  boost::format(":  process the G-code file %1% successfully")%file.c_str();
+
+    {
+        LifecycleEventContext ctx;
+        ctx.name = std::to_string(m_model.id().id);
+        ctx.code = LifecycleEvtCode::Ok;
+        ctx.msg  = file;
+        fire_lifecycle_event(LifecycleEvent::GCodeExportFinished, ctx);
+    }
 }

 std::tuple<float, float> Print::object_skirt_offset(double margin_height) const
@@ -139,14 +139,6 @@ set(SLIC3R_GUI_SOURCES
    GUI/PluginProgressDialog.hpp
    GUI/PluginWebDialog.cpp
    GUI/PluginWebDialog.hpp
-    GUI/PluginDockPanel.cpp
-    GUI/PluginDockPanel.hpp
-    GUI/PluginWebPanel.cpp
-    GUI/PluginWebPanel.hpp
-    GUI/Widgets/PluginWebContent.cpp
-    GUI/Widgets/PluginWebContent.hpp
-    GUI/Widgets/AuiPaneLayout.cpp
-    GUI/Widgets/AuiPaneLayout.hpp
    GUI/DragCanvas.cpp
    GUI/DragCanvas.hpp
    GUI/EditGCodeDialog.cpp
@@ -403,7 +403,7 @@ DesignPanel::DesignPanel(wxWindow* parent)
    // bind to their default mode; the other modes stay in the toolbar flyout. Registered here
    // where select_tool is in scope; the closures run at key-press time (members are live by then).
    auto sk_key = [this, select_tool](int ch, DesignSketchTool::Mode m, const wxString& h) {
-        m_keys_sketch[ch] = [this, select_tool, m, h] { select_tool(m, h); };
+        m_keys_sketch[ch] = [select_tool, m, h] { select_tool(m, h); };
    };
    sk_key('L', DesignSketchTool::Mode::Line,         _L("Line — click start, then end"));
    sk_key('R', DesignSketchTool::Mode::CornerRect,   _L("Rectangle — click two opposite corners"));
@@ -1445,16 +1445,16 @@ DesignPanel::DesignPanel(wxWindow* parent)
        // Choose FIRST, then open: open_tool() titles the card from m_dressup_type, so setting
        // it afterwards left the header reading "Fillet 1" over a chamfer. Nothing in the
        // opener resets the combo, so this order is safe.
-        m_verb_actions["btn:dress#0"] = [this, open_feature, k_dress] {
+        m_verb_actions["btn:dress#0"] = [this, open_feature] {
            if (m_dressup_type) m_dressup_type->SetSelection(0); open_feature(k_dress); };
-        m_verb_actions["btn:dress#1"] = [this, open_feature, k_dress] {
+        m_verb_actions["btn:dress#1"] = [this, open_feature] {
            if (m_dressup_type) m_dressup_type->SetSelection(1); open_feature(k_dress); };
        for (int op = 0; op < 3; ++op)
-            m_verb_actions["btn:bool#" + std::to_string(op)] = [this, open_feature, k_bool, op] {
+            m_verb_actions["btn:bool#" + std::to_string(op)] = [this, open_feature, op] {
                open_feature(k_bool);
                if (m_bool_op) { m_bool_op->SetSelection(op); refresh_preview(); } };
        for (int t = 0; t < 2; ++t)
-            m_verb_actions["btn:pat#" + std::to_string(t)] = [this, open_feature, k_pat, t] {
+            m_verb_actions["btn:pat#" + std::to_string(t)] = [this, open_feature, t] {
                open_feature(k_pat); if (m_pattern_type) m_pattern_type->SetSelection(t); };

        auto* b_poly = icon_btn("design_polygon", _L("Polygon"));
@@ -6625,7 +6625,7 @@ void DesignPanel::show_offer_menu(const wxPoint& screen_pos)
            mate_ghost = false;
        };
        menu.Bind(wxEVT_MENU_HIGHLIGHT,
-                  [this, cs_a, cs_b, opts, mate_base, &mate_ghost, drop_ghost](wxMenuEvent& e) {
+                  [this, cs_a, cs_b, opts, &mate_ghost, drop_ghost](wxMenuEvent& e) {
            const int i = e.GetMenuId() - (mate_base + 1);
            // Off the palette (a verb row, the header, or nothing) — a stale ghost from the row
            // you just left is worse than none, so it goes as soon as the cursor does.
@@ -6635,7 +6635,7 @@ void DesignPanel::show_offer_menu(const wxPoint& screen_pos)
            m_viewport->repaint_now();   // synchronous: the popup owns the loop, a queued repaint is never serviced
        });

-        menu.Bind(wxEVT_MENU, [this, cs_a, cs_b, opts, mate_base, drop_ghost](wxCommandEvent& e) {
+        menu.Bind(wxEVT_MENU, [this, cs_a, cs_b, opts, drop_ghost](wxCommandEvent& e) {
            const int i = e.GetId() - (mate_base + 1);
            if (i < 0 || i >= int(opts.size()) || !opts[i].viable) return;
            drop_ghost();         // the real bodies are about to become the ghost's pose
@@ -6666,7 +6666,7 @@ void DesignPanel::show_offer_menu(const wxPoint& screen_pos)
    // status message on screen, and clicking one created nothing at all. The whole mate palette
    // enumerated perfectly and fired nothing. Restricting the range keeps each half to its own ids
    // regardless of bind order.
-    menu.Bind(wxEVT_MENU_HIGHLIGHT, [this, &bound, base](wxMenuEvent& e) {
+    menu.Bind(wxEVT_MENU_HIGHLIGHT, [this, &bound](wxMenuEvent& e) {
        const int i = e.GetMenuId() - base;
        if (i < 0 || i >= int(bound.size()) || bound[i] == nullptr || bound[i]->hint == nullptr)
            return;
@@ -6674,7 +6674,7 @@ void DesignPanel::show_offer_menu(const wxPoint& screen_pos)
        set_status(wxGetTranslation(wxString::FromUTF8(bound[i]->hint)));
        m_status->Update();   // the popup owns the loop; without this the line repaints late
    }, base, base + 499);   // 499: the mate section starts at base + 500 (see mate_base)
-    menu.Bind(wxEVT_MENU, [this, &bound, base](wxCommandEvent& e) {
+    menu.Bind(wxEVT_MENU, [this, &bound](wxCommandEvent& e) {
        const int i = e.GetId() - base;
        if (i >= 0 && i < int(bound.size()) && bound[i])
            run_offer_action(bound[i]->action);
@@ -7935,7 +7935,7 @@ void DesignPanel::apply_live_constraint(SketchConstraintType type)
                              constraint_reject_text(plan.reason, type), int(sel.size())));
        return;
    case ConstraintPlan::Kind::AskValue:
-        m_viewport->open_inline_value(plan.prefill, [this, plan, commit](double v) {
+        m_viewport->open_inline_value(plan.prefill, [plan, commit](double v) {
            commit(plan.defs, v);
        });
        return;
@@ -121,7 +121,7 @@ void SketchInlineEditor::do_commit()
        // just sits there and the user has no idea what it wants. Say so in the title line and
        // keep editing.
        ux_trace("refused", m_title, std::string("typed=") + m_buf);
-        m_err = (m_buf[0] == '\0') ? into_u8(_L("Enter a number")) : into_u8(_L("Not a number"));
+        m_err = (m_buf[0] == '\0') ? _u8L("Enter a number") : _u8L("Not a number");
        m_focus_pending = true;
        return;
    }
@@ -10,6 +10,7 @@
 #include "slic3r/GUI/I18N.hpp"
 #include "slic3r/GUI/GUI_App.hpp"
 #include "slic3r/GUI/Plater.hpp"
+#include "slic3r/plugin/PluginManager.hpp"
 #include "slic3r/Utils/NetworkAgentFactory.hpp"

 #include "libslic3r/Time.hpp"
@@ -355,7 +356,10 @@ namespace Slic3r
                    obj->bind_state = "free";

                obj->last_alive = Slic3r::Utils::get_current_time_utc();
-                obj->m_is_online = true;
+                // Route through set_online_state() (rather than writing m_is_online directly) so the
+                // DeviceOnlineChanged lifecycle event fires consistently; same effective value/behavior
+                // here since the object was already online in the common case.
+                obj->set_online_state(true);
                obj->set_dev_name(dev_name);
                /* if (!obj->dev_ip.empty()) {
                Slic3r::GUI::wxGetApp().app_config->set_str("ip_address", obj->dev_id, obj->dev_ip);
@@ -373,6 +377,10 @@ namespace Slic3r
                obj->bind_sec_link  = sec_link;
                obj->dev_connection_name = connection_name;
                obj->bind_ssdp_version = ssdp_version;
+                // Discovery establishes the initial reachability state. Do not report it as an
+                // online transition; DeviceDiscovered below is the lifecycle event for a new
+                // device. Subsequent updates route through set_online_state(), so a known device
+                // still emits DeviceOnlineChanged when its reachability actually changes.
                obj->m_is_online = true;

                //load access code
@@ -389,6 +397,15 @@ namespace Slic3r
                BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << " New Machine, dev_id= " << dev_id
                    << ", ip = " << dev_ip <<", printer_name = " << dev_name
                    << ", con_type= " << connect_type <<", signal= " << printer_signal << ", bind_state= " << bind_state;
+
+                // First discovery of a genuinely new device (not a periodic SSDP/heartbeat update to
+                // an already-known one, which is handled in the branch above).
+                {
+                    LifecycleEventContext ctx;
+                    ctx.name = dev_id;
+                    ctx.code = LifecycleEvtCode::Ok;
+                    fire_lifecycle_event(LifecycleEvent::DeviceDiscovered, ctx);
+                }
            }
            update_local_machine(*obj);
        }
@@ -984,8 +1001,14 @@ namespace Slic3r
    }

    void DeviceManager::OnSelectedMachineChanged(const std::string& /*pre_dev_id*/,
-                                                 const std::string& /*new_dev_id*/)
+                                                 const std::string& new_dev_id)
    {
+        {
+            LifecycleEventContext ctx;
+            ctx.name = new_dev_id; // empty string is a valid deselection
+            ctx.code = LifecycleEvtCode::Ok;
+            fire_lifecycle_event(LifecycleEvent::DeviceSelected, ctx);
+        }
        if (MachineObject* obj_ = get_selected_machine()) {
            GUI::wxGetApp().sidebar().update_sync_status(obj_);
            if(m_agent->get_filament_sync_mode() == FilamentSyncMode::subscription)
@@ -5,6 +5,7 @@
 #include "libslic3r/Time.hpp"
 #include "libslic3r/Thread.hpp"
 #include "slic3r/Utils/NetworkAgent.hpp"
+#include "slic3r/plugin/PluginManager.hpp"
 #include "slic3r/Utils/NetworkAgentFactory.hpp"
 #include "GuiColor.hpp"

@@ -2626,7 +2627,15 @@ void MachineObject::reset()

 void MachineObject::set_print_state(std::string status)
 {
+    const bool changed = (print_status != status);
    print_status = status;
+    if (changed) {
+        LifecycleEventContext ctx;
+        ctx.name  = dev_id;
+        ctx.code  = LifecycleEvtCode::Ok;
+        ctx.msg   = print_status;
+        fire_lifecycle_event(LifecycleEvent::PrintStateChanged, ctx);
+    }
 }

 int MachineObject::connect(bool use_openssl)
@@ -2648,6 +2657,10 @@ int MachineObject::connect(bool use_openssl)
 int MachineObject::disconnect()
 {
    if (m_agent) {
+        LifecycleEventContext ctx;
+        ctx.name = dev_id;
+        ctx.code = LifecycleEvtCode::Ok;
+        fire_lifecycle_event(LifecycleEvent::DeviceDisconnected, ctx);
        return m_agent->disconnect_printer();
    }
    return -1;
@@ -2678,8 +2691,16 @@ bool MachineObject::is_connecting()

 void MachineObject::set_online_state(bool on_off)
 {
+    const bool changed = (m_is_online != on_off);
    m_is_online = on_off;
    if (!on_off) m_active_state = NotActive;
+    if (changed) {
+        LifecycleEventContext ctx;
+        ctx.name  = dev_id;
+        ctx.code  = LifecycleEvtCode::Ok;
+        ctx.msg   = on_off ? "online" : "offline";
+        fire_lifecycle_event(LifecycleEvent::DeviceOnlineChanged, ctx);
+    }
 }

 bool MachineObject::is_info_ready(bool check_version) const
@@ -4601,8 +4622,13 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
        try {
            if (j.contains("event")) {
                if (j["event"].contains("event")) {
-                    if (j["event"]["event"].get<std::string>() == "client.disconnected")
+                    if (j["event"]["event"].get<std::string>() == "client.disconnected") {
                        set_online_state(false);
+                        LifecycleEventContext ctx;
+                        ctx.name = dev_id;
+                        ctx.code = LifecycleEvtCode::Ok;
+                        fire_lifecycle_event(LifecycleEvent::DeviceDisconnected, ctx);
+                    }
                    else if (j["event"]["event"].get<std::string>() == "client.connected")
                        set_online_state(true);
                }
@@ -42,6 +42,7 @@
 #include "slic3r/GUI/Gizmos/GLGizmoPainterBase.hpp"
 #include "slic3r/Utils/UndoRedo.hpp"
 #include "slic3r/Utils/MacDarkMode.hpp"
+#include "slic3r/plugin/PluginManager.hpp"

 #include <slic3r/GUI/GUI_Utils.hpp>

@@ -5208,8 +5209,16 @@ void GLCanvas3D::do_move(const std::string& snapshot_type)
    //BBS: nofity object list to update
    wxGetApp().plater()->sidebar().obj_list()->update_plate_values_for_items();

-    if (object_moved)
+    if (object_moved) {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        ctx.msg = "moved";
+        if (done.size() == 1)
+            ctx.name = m_model->objects[done.begin()->first]->name;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectTransformed, ctx);
+
        post_event(SimpleEvent(EVT_GLCANVAS_INSTANCE_MOVED));
+    }

    // BBS: support wipe-tower for multi-plates
    for (int plate_id = 0; plate_id < wipe_tower_origins.size(); plate_id++) {
@@ -5330,8 +5339,16 @@ void GLCanvas3D::do_rotate(const std::string& snapshot_type)
    //BBS: nofity object list to update
    wxGetApp().plater()->sidebar().obj_list()->update_plate_values_for_items();

-    if (!done.empty())
+    if (!done.empty()) {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        ctx.msg = "rotated";
+        if (done.size() == 1)
+            ctx.name = m_model->objects[done.begin()->first]->name;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectTransformed, ctx);
+
        post_event(SimpleEvent(EVT_GLCANVAS_INSTANCE_ROTATED));
+    }

    m_dirty = true;
 }
@@ -5422,8 +5439,16 @@ void GLCanvas3D::do_scale(const std::string& snapshot_type)
    //BBS: notify object info update
    wxGetApp().plater()->show_object_info();

-    if (!done.empty())
+    if (!done.empty()) {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        ctx.msg = "scaled";
+        if (done.size() == 1)
+            ctx.name = m_model->objects[done.begin()->first]->name;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectTransformed, ctx);
+
        post_event(SimpleEvent(EVT_GLCANVAS_INSTANCE_SCALED));
+    }

    m_dirty = true;
 }
@@ -2179,6 +2179,11 @@ void GUI_App::init_networking_callbacks()
                    obj->command_get_access_code();
                    if (m_agent)
                        m_agent->install_device_cert(obj->get_dev_id(), obj->is_lan_mode_printer());
+
+                    LifecycleEventContext ctx;
+                    ctx.name = obj->get_dev_id();
+                    ctx.code = LifecycleEvtCode::Ok;
+                    fire_lifecycle_event(LifecycleEvent::DeviceConnected, ctx);
                }
                });
            });
@@ -2217,6 +2222,11 @@ void GUI_App::init_networking_callbacks()
                                obj->command_get_version();
                                event.SetInt(0);
                                event.SetString(obj->get_dev_id());
+
+                                LifecycleEventContext ctx;
+                                ctx.name = obj->get_dev_id();
+                                ctx.code = LifecycleEvtCode::Ok;
+                                fire_lifecycle_event(LifecycleEvent::DeviceConnected, ctx);
                            } else if (state == ConnectStatus::ConnectStatusFailed) {
                                // Orca: only update status if same device id
                                if (m_device_manager->selected_machine != dev_id) return;
@@ -2232,10 +2242,22 @@ void GUI_App::init_networking_callbacks()
                                    wxGetApp().show_dialog(text);
                                }
                                event.SetInt(-1);
+
+                                {
+                                    LifecycleEventContext ctx;
+                                    ctx.name = dev_id;
+                                    ctx.code = LifecycleEvtCode::Ok;
+                                    fire_lifecycle_event(LifecycleEvent::DeviceDisconnected, ctx);
+                                }
                            } else if (state == ConnectStatus::ConnectStatusLost) {
                                m_device_manager->set_selected_machine("");
                                event.SetInt(-1);
                                BOOST_LOG_TRIVIAL(info) << "set_on_local_connect_fn: state = lost";
+
+                                LifecycleEventContext ctx;
+                                ctx.name = dev_id;
+                                ctx.code = LifecycleEvtCode::Ok;
+                                fire_lifecycle_event(LifecycleEvent::DeviceDisconnected, ctx);
                            } else {
                                event.SetInt(-1);
                                BOOST_LOG_TRIVIAL(info) << "set_on_local_connect_fn: state = " << state;
@@ -1,5 +1,6 @@
 #include "libslic3r/libslic3r.h"
 #include "libslic3r/PresetBundle.hpp"
+#include "libslic3r/LifecycleEvents.hpp"
 #include "GUI_ObjectList.hpp"
 #include "GUI_Factories.hpp"
 //#include "GUI_ObjectLayers.hpp"
@@ -9,6 +10,7 @@
 #include "BitmapComboBox.hpp"
 #include "MainFrame.hpp"
 #include "slic3r/Utils/UndoRedo.hpp"
+#include "slic3r/plugin/PluginManager.hpp"

 #include "OptionsGroup.hpp"
 #include "Tab.hpp"
@@ -1199,17 +1201,39 @@ void ObjectList::update_name_in_model(const wxDataViewItem& item) const
    if (m_objects_model->GetItemType(item) & itObject) {
        std::string name = m_objects_model->GetName(item).ToUTF8().data();
        if (obj->name != name) {
+            const std::string previous_name = obj->name;
            obj->name = name;
            // if object has just one volume, rename this volume too
            if (obj->volumes.size() == 1)
                obj->volumes[0]->name = obj->name;
            Slic3r::save_object_mesh(*obj);
+
+            LifecycleEventContext ctx;
+            ctx.name = name;
+            ctx.previous_name = previous_name;
+            ctx.id = std::to_string(obj->id().id);
+            ctx.index = obj_idx;
+            ctx.source = "object";
+            fire_lifecycle_event(LifecycleEvent::ObjectRenamed, ctx);
        }
        return;
    }

    if (volume_id < 0) return;
-    obj->volumes[volume_id]->name = m_objects_model->GetName(item).ToUTF8().data();
+    std::string name = m_objects_model->GetName(item).ToUTF8().data();
+    if (obj->volumes[volume_id]->name == name)
+        return;
+
+    const std::string previous_name = obj->volumes[volume_id]->name;
+    obj->volumes[volume_id]->name = name;
+
+    LifecycleEventContext ctx;
+    ctx.name = name;
+    ctx.previous_name = previous_name;
+    ctx.id = std::to_string(obj->volumes[volume_id]->id().id);
+    ctx.index = volume_id;
+    ctx.source = "volume";
+    fire_lifecycle_event(LifecycleEvent::ObjectRenamed, ctx);
 }

 void ObjectList::update_name_in_list(int obj_idx, int vol_idx) const
@@ -3548,7 +3572,14 @@ void ObjectList::delete_all_connectors_for_object(int obj_idx)
            obj->delete_connectors();

            if (obj->volumes.empty() || !obj->has_solid_mesh()) {
+                const std::string deleted_obj_name = obj->name;
                model.delete_object(idx);
+                {
+                    Slic3r::LifecycleEventContext ctx;
+                    ctx.name = deleted_obj_name;
+                    ctx.code = Slic3r::LifecycleEvtCode::Ok;
+                    Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectDeleted, ctx);
+                }
                m_objects_model->Delete(m_objects_model->GetItemById(idx));
                continue;
            }
@@ -4117,6 +4148,13 @@ void ObjectList::add_object_to_list(size_t obj_idx, bool call_selection_changed,
    const auto item = m_objects_model->AddObject(model_object, warning_bitmap, model_object->is_cut());
    Expand(m_objects_model->GetParent(item));

+    {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.name = model_object->name;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectAdded, ctx);
+    }
+
    if (!do_info_update)
        return;

@@ -15,7 +15,6 @@
 #endif
 #include <imgui/imgui_internal.h>

-#define L(s) Slic3r::GUI::I18N::translate((s)).c_str()
 #define UL(s) Slic3r::GUI::I18N::translate_utf8((s)).c_str()

 namespace Slic3r {
@@ -374,15 +373,15 @@ void GLGizmoSketch::on_render_input_window(float x, float y, float bottom_limit)
    };

    if (m_sp.is_pocket && has_sel) {
-        if (btn(L("Pocket (Cut)"), ok)) apply_pocket();
+        if (btn(_u8L("Pocket (Cut)").c_str(), ok)) apply_pocket();
    } else if (is_revolve) {
-        if (btn(L("Revolve"), ok)) apply_revolve();
+        if (btn(_u8L("Revolve").c_str(), ok)) apply_revolve();
    } else {
-        if (btn(L("Extrude"), ok)) apply_extrude();
+        if (btn(_u8L("Extrude").c_str(), ok)) apply_extrude();
    }

-    if (ImGui::Button(L("Clear All"), {-1,0})) clear_all();
-    if (ImGui::Button(L("Close"), {-1,0})) m_parent.reset_all_gizmos();
+    if (ImGui::Button(_u8L("Clear All").c_str(), {-1,0})) clear_all();
+    if (ImGui::Button(_u8L("Close").c_str(), {-1,0})) m_parent.reset_all_gizmos();

    GizmoImguiEnd();
    ImGuiWrapper::pop_toolbar_style();
@@ -13,6 +13,7 @@
 #include "slic3r/GUI/NotificationManager.hpp"
 #include "slic3r/GUI/format.hpp"
 #include "slic3r/GUI/GUI_ObjectList.hpp"
+#include "slic3r/plugin/PluginManager.hpp"

 #include "libnest2d/common.hpp"

@@ -698,6 +699,13 @@ void ArrangeJob::finalize(bool canceled, std::exception_ptr &eptr) {
        BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(":arrange m_unprintable: name: %4%, bed_id %1%, trans {%2%,%3%}") % ap.bed_idx % unscale<double>(ap.translation(X)) % unscale<double>(ap.translation(Y)) % ap.name;
    }

+    {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        ctx.msg = "arranged";
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectTransformed, ctx);
+    }
+
    m_plater->update();
    // BBS
    //wxGetApp().obj_manipul()->set_dirty();
@@ -6,6 +6,7 @@
 #include "slic3r/GUI/Plater.hpp"
 #include "slic3r/GUI/GLCanvas3D.hpp"
 #include "slic3r/GUI/GUI_ObjectList.hpp"
+#include "slic3r/plugin/PluginManager.hpp"
 #include "libnest2d/common.hpp"

 #include <numeric>
@@ -347,6 +348,13 @@ void FillBedJob::finalize(bool canceled, std::exception_ptr &eptr)
            m_plater->arrange();
        }
        m_plater->update();
+
+        {
+            Slic3r::LifecycleEventContext ctx;
+            ctx.code = Slic3r::LifecycleEvtCode::Ok;
+            ctx.msg = "arranged";
+            Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectTransformed, ctx);
+        }
    }

    m_plater->mark_plate_toolbar_image_dirty();
@@ -5,6 +5,7 @@
 #include "slic3r/GUI/GUI.hpp"
 #include "slic3r/GUI/GUI_App.hpp"
 #include "slic3r/GUI/NotificationManager.hpp"
+#include "slic3r/plugin/PluginManager.hpp"
 #include "libslic3r/PresetBundle.hpp"


@@ -254,6 +255,12 @@ void OrientJob::finalize(bool canceled, std::exception_ptr &eptr)
        mesh.apply();
    }

+    if (!m_selected.empty()) {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        ctx.msg = "auto_oriented";
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectTransformed, ctx);
+    }

    m_plater->update();

@@ -1,4 +1,5 @@
 #include "PrintJob.hpp"
+#include "libslic3r/LifecycleEvents.hpp"
 #include "libslic3r/MTUtils.hpp"
 #include "libslic3r/Model.hpp"
 #include "libslic3r/PresetBundle.hpp"
@@ -133,6 +134,13 @@ wxString PrintJob::get_http_error_msg(unsigned int status, std::string body)

 void PrintJob::process(Ctl &ctl)
 {
+    LifecycleEventContext start_ctx;
+    start_ctx.name = m_project_name;
+    start_ctx.device_id = m_dev_id;
+    start_ctx.source = "print_job";
+    fire_lifecycle_event(LifecycleEvent::PrintJobStarted, start_ctx);
+    m_lifecycle_started = true;
+
    /* display info */
    std::string msg;
    int curr_percent = 10;
@@ -686,6 +694,7 @@ void PrintJob::process(Ctl &ctl)
        }
        wxQueueEvent(m_plater, evt);
        m_job_finished = true;
+        m_lifecycle_success = true;
    }
 }

@@ -698,6 +707,19 @@ void PrintJob::finalize(bool canceled, std::exception_ptr &eptr) {
        eptr = std::current_exception();
    }

+    if (m_lifecycle_started && !m_lifecycle_finished) {
+        LifecycleEventContext finish_ctx;
+        finish_ctx.name = m_project_name;
+        finish_ctx.device_id = m_dev_id;
+        finish_ctx.source = "print_job";
+        finish_ctx.code = canceled ? LifecycleEvtCode::Warn :
+            (eptr || !m_lifecycle_success ? LifecycleEvtCode::Error : LifecycleEvtCode::Ok);
+        finish_ctx.msg = canceled ? "cancelled" : (eptr ? "exception" :
+            (m_lifecycle_success ? "" : "failed"));
+        fire_lifecycle_event(LifecycleEvent::PrintJobFinished, finish_ctx);
+        m_lifecycle_finished = true;
+    }
+
    if (canceled || eptr)
        return;
 }
@@ -43,6 +43,9 @@ class PrintJob : public Job
    std::function<void()> m_success_fun{nullptr};
    std::string         m_dev_id;
    bool                m_job_finished{ false };
+    bool                m_lifecycle_started{ false };
+    bool                m_lifecycle_finished{ false };
+    bool                m_lifecycle_success{ false };
    int                 m_print_job_completed_id = 0;
    wxString            m_completed_evt_data;
    std::function<void()> m_enter_ip_address_fun_fail{ nullptr };
@@ -1,4 +1,5 @@
 #include "SendJob.hpp"
+#include "libslic3r/LifecycleEvents.hpp"
 #include "slic3r/GUI/I18N.hpp"
 #include "slic3r/Utils/NetworkAgent.hpp"
 #include "libslic3r/MTUtils.hpp"
@@ -148,6 +149,13 @@ void SendJob::process(Ctl &ctl)
        }
    }

+    LifecycleEventContext start_ctx;
+    start_ctx.name = m_project_name;
+    start_ctx.device_id = m_dev_id;
+    start_ctx.source = "send_job";
+    fire_lifecycle_event(LifecycleEvent::SendJobStarted, start_ctx);
+    m_lifecycle_started = true;
+
    int total_plate_num = m_plater->get_partplate_list().get_plate_count();

    PartPlate* plate = m_plater->get_partplate_list().get_plate(job_data.plate_idx);
@@ -424,6 +432,19 @@ void SendJob::finalize(bool canceled, std::exception_ptr &eptr)
        eptr = std::current_exception();
    }

+    if (m_lifecycle_started && !m_lifecycle_finished) {
+        LifecycleEventContext finish_ctx;
+        finish_ctx.name = m_project_name;
+        finish_ctx.device_id = m_dev_id;
+        finish_ctx.source = "send_job";
+        finish_ctx.code = canceled ? LifecycleEvtCode::Warn :
+            (eptr ? LifecycleEvtCode::Error : (m_job_finished ? LifecycleEvtCode::Ok : LifecycleEvtCode::Error));
+        finish_ctx.msg = canceled ? "cancelled" : (eptr ? "exception" :
+            (m_job_finished ? "" : "failed"));
+        fire_lifecycle_event(LifecycleEvent::SendJobFinished, finish_ctx);
+        m_lifecycle_finished = true;
+    }
+
    if (canceled || eptr)
        return;
 }
@@ -22,6 +22,8 @@ class SendJob : public Job
    PrintPrepareData    job_data;
    std::string         m_dev_id;
    bool                m_job_finished{ false };
+    bool                m_lifecycle_started{ false };
+    bool                m_lifecycle_finished{ false };
    int                 m_print_job_completed_id = 0;
    bool                m_is_check_mode{false};
    bool                m_check_and_continue{false};
@@ -1126,8 +1126,6 @@ void MainFrame::shutdown()
    if (m_project != nullptr)
        m_project->shutdown();
    m_plugin_pages.shutdown();
-    if (m_plater != nullptr)
-        m_plater->remove_plugin_panes();
 #ifdef __WXGTK__
    // Edge panels are child windows — wxWidgets destroys them automatically.
    m_edge_bottom = nullptr;
@@ -29,6 +29,7 @@
 #include "libslic3r/Tesselate.hpp"
 #include "libslic3r/GCode/ThumbnailData.hpp"
 #include "libslic3r/Utils.hpp"
+#include "libslic3r/LifecycleEvents.hpp"

 #include "I18N.hpp"
 #include "GUI_App.hpp"
@@ -2636,11 +2637,20 @@ void PartPlate::set_plate_name(const std::string& name)
    if (boost::equals(m_name, name))
        return;

+	const std::string previous_name = m_name;
 	m_name = name;
    if (m_print != nullptr)
        m_print->set_plate_name(name);

 	invalidate_plate_name_texture();
+
+    if (m_plater != nullptr && !m_plater->is_loading_project()) {
+        LifecycleEventContext ctx;
+        ctx.name = name;
+        ctx.previous_name = previous_name;
+        ctx.index = m_plate_index;
+        fire_lifecycle_event(LifecycleEvent::PlateRenamed, ctx);
+    }
 }

 //get the print's object, result and index
@@ -4751,9 +4761,16 @@ int PartPlateList::create_plate(bool adjust_position)

 	if (m_plater) {
 		// In GUI mode
-		wxGetApp().obj_list()->on_plate_added(plate);
+        wxGetApp().obj_list()->on_plate_added(plate);
 	}

+    if (m_plater != nullptr && m_intialized && !m_plater->is_loading_project()) {
+        LifecycleEventContext ctx;
+        ctx.name = plate->get_plate_name();
+        ctx.index = new_index;
+        fire_lifecycle_event(LifecycleEvent::PlateCreated, ctx);
+    }
+
 	BOOST_LOG_TRIVIAL(debug) << __FUNCTION__ << boost::format(":created a new plate %1%") % new_index;
 	return new_index;
 }
@@ -4852,6 +4869,7 @@ int PartPlateList::delete_plate(int index)
 		BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << boost::format(":plate %1%, has an invalid index %2%") % index % plate->get_index();
 		return -1;
 	}
+	const std::string plate_name = plate->get_plate_name();

 	if (m_plater) {
 		// In GUI mode
@@ -4934,6 +4952,13 @@ int PartPlateList::delete_plate(int index)

 	delete plate;

+    if (m_plater != nullptr && m_intialized && !m_plater->is_loading_project()) {
+        LifecycleEventContext ctx;
+        ctx.name = plate_name;
+        ctx.index = index;
+        fire_lifecycle_event(LifecycleEvent::PlateDeleted, ctx);
+    }
+
    // FIX: context of BackgroundSliceProcess and gcode preview need to be updated before ObjectList::reload_all_plates().
 #if 0
 	if (m_plater != nullptr) {
@@ -5042,6 +5067,7 @@ int PartPlateList::select_plate(int index)
 	if (m_plate_list.empty() || index >= m_plate_list.size()) {
 		return -1;
 	}
+	const int previous_index = m_current_plate;

 	// BBS: erase unnecessary snapshot
 	if (get_curr_plate_index() != index && m_intialized) {
@@ -5068,6 +5094,13 @@ int PartPlateList::select_plate(int index)
 		//wxQueueEvent(m_plater, new SimpleEvent(EVT_GLCANVAS_PLATE_SELECT));
 	}

+    if (previous_index != index && m_intialized && m_plater != nullptr && !m_plater->is_loading_project()) {
+        LifecycleEventContext ctx;
+        ctx.name = m_plate_list[index]->get_plate_name();
+        ctx.index = index;
+        fire_lifecycle_event(LifecycleEvent::PlateSelected, ctx);
+    }
+
 	return 0;
 }

@@ -57,6 +57,7 @@
 #include <wx/aui/aui.h>

 #include "libslic3r/libslic3r.h"
+#include "libslic3r/LifecycleEvents.hpp"
 #include "libslic3r/Format/STL.hpp"
 #include "libslic3r/Format/DRC.hpp"
 #include "libslic3r/Format/STEP.hpp"
@@ -86,7 +87,6 @@
 #ifdef __WXGTK__
 #include "LinuxDisplayBackend.hpp"
 #endif
-#include "Widgets/AuiPaneLayout.hpp"
 #include "GUI_Utils.hpp"
 #include "GUI_Factories.hpp"
 #include "wxExtensions.hpp"
@@ -6724,14 +6724,6 @@ struct Plater::priv

    // GUI elements
    AuiMgr m_aui_mgr;
-    // Live plugin panes. `on_close` runs when the user closes one from its close button; `shown` is
-    // what the plugin asked for.
-    struct PluginPane
-    {
-        std::function<void()> on_close;
-        bool                  shown{true};
-    };
-    std::map<wxWindow*, PluginPane> m_plugin_panes;
    wxString m_default_window_layout;
    wxPanel* current_panel{ nullptr };
    std::vector<wxPanel*> panels;
@@ -6903,11 +6895,6 @@ struct Plater::priv
    void update_sidebar(bool force_update = false);
    void reset_window_layout();
    Sidebar::DockingState get_sidebar_docking_state();
-    void add_plugin_pane(wxWindow* window, const std::string& name, const wxString& caption, const std::string& dock,
-                         const wxSize& size, std::function<void()> on_close);
-    void remove_plugin_pane(wxWindow* window);
-    void show_plugin_pane(wxWindow* window, bool show);
-    bool plugin_pane_visible(const PluginPane& plugin_pane, const wxAuiPaneInfo& pane) const;

    bool is_view3D_layers_editing_enabled() const { return (current_panel == view3D) && view3D->get_canvas3d()->is_layers_editing_enabled(); }

@@ -7488,18 +7475,6 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
    panel_3d->SetSizer(panel_sizer);
    m_aui_mgr.AddPane(panel_3d, wxAuiPaneInfo().Name("main").CenterPane().PaneBorder(false));

-    q->Bind(wxEVT_AUI_PANE_CLOSE, [this](wxAuiManagerEvent& evt) {
-        const wxAuiPaneInfo* pane = evt.GetPane();
-        auto                 it   = pane != nullptr ? m_plugin_panes.find(pane->window) : m_plugin_panes.end();
-        if (it != m_plugin_panes.end()) {
-            const std::function<void()> on_close = std::move(it->second.on_close);
-            m_plugin_panes.erase(it);
-            if (on_close)
-                on_close();
-        }
-        evt.Skip();
-    });
-
    m_default_window_layout = m_aui_mgr.SavePerspective();

    {
@@ -8170,14 +8145,6 @@ void Plater::priv::update_sidebar(bool force_update) {
        }
    }

-    for (const auto& [window, plugin_pane] : m_plugin_panes) {
-        wxAuiPaneInfo& pane = m_aui_mgr.GetPane(window);
-        if (pane.IsOk() && pane.IsShown() != plugin_pane_visible(plugin_pane, pane)) {
-            pane.Show(!pane.IsShown());
-            needs_update = true;
-        }
-    }
-
    if (needs_update) {
        notification_manager->set_sidebar_collapsed(sidebar.IsShown());
        m_aui_mgr.Update();
@@ -8187,96 +8154,10 @@ void Plater::priv::update_sidebar(bool force_update) {
 void Plater::priv::reset_window_layout()
 {
    m_aui_mgr.LoadPerspective(m_default_window_layout, false);
-    // Loading a layout docks and hides every pane it does not list, and the default layout lists no
-    // plugin panes: a floating plugin pane is docked again, like the rest of the window.
-    for (const auto& [window, plugin_pane] : m_plugin_panes)
-        if (wxAuiPaneInfo& pane = m_aui_mgr.GetPane(window); pane.IsOk())
-            pane.Show(plugin_pane_visible(plugin_pane, pane));
    sidebar_layout.is_collapsed = false;
    update_sidebar(true);
 }

-bool Plater::priv::plugin_pane_visible(const PluginPane& plugin_pane, const wxAuiPaneInfo& pane) const
-{
-    // A floating pane is a top-level window, so it does not hide with the Plater on other tabs.
-    return plugin_pane.shown && (!pane.IsFloating() || sidebar_layout.show);
-}
-
-void Plater::priv::add_plugin_pane(wxWindow* window, const std::string& name, const wxString& caption, const std::string& dock,
-                                   const wxSize& size, std::function<void()> on_close)
-{
-    const wxString base_name   = wxString::FromUTF8(name);
-    wxString       unique_name = base_name;
-    for (int i = 2; m_aui_mgr.GetPane(unique_name).IsOk(); ++i)
-        unique_name = base_name + wxString::Format("#%d", i);
-
-    // A restored layout below already holds pixels.
-    const wxSize  pixels = q->FromDIP(size);
-    wxAuiPaneInfo info;
-    info.Name(unique_name).Caption(caption).BestSize(pixels).FloatingSize(pixels).DestroyOnClose(true);
-    if (dock == "left")
-        info.Left();
-    else if (dock == "bottom")
-        info.Bottom();
-    else
-        info.Right();
-    if (dock == "float")
-        info.Float();
-
-    // Put the pane back where it was the last time the window layout was saved with it open.
-    const std::string saved = aui_pane_layout_entry(wxGetApp().app_config->get("window_layout"), unique_name.utf8_string());
-    if (!saved.empty()) {
-        m_aui_mgr.LoadPaneInfo(wxString::FromUTF8(saved), info);
-        info.Caption(caption).DestroyOnClose(true).Show();
-    }
-
-    // Floating is disabled on Wayland.
-    if ((m_aui_mgr.GetFlags() & wxAUI_MGR_ALLOW_FLOATING) == 0) {
-        info.Dock().Floatable(false);
-        if (info.dock_direction == wxAUI_DOCK_NONE)
-            info.Right();
-    }
-
-    const PluginPane& plugin_pane = m_plugin_panes[window] = PluginPane{std::move(on_close)};
-    info.Show(plugin_pane_visible(plugin_pane, info));
-    m_aui_mgr.AddPane(window, info);
-
-    // wxAUI does not record a dragged sash in best_size, so track the docked size like the sidebar
-    // does, for the saved layout.
-    window->Bind(wxEVT_IDLE, [this, window](wxIdleEvent& evt) {
-        wxAuiPaneInfo& pane = m_aui_mgr.GetPane(window);
-        if (pane.IsOk() && pane.IsShown() && pane.IsDocked() && pane.rect.GetWidth() > 0 && pane.rect.GetHeight() > 0) {
-            const bool horizontal = pane.dock_direction == wxAUI_DOCK_TOP || pane.dock_direction == wxAUI_DOCK_BOTTOM;
-            pane.BestSize(horizontal ? pane.best_size.GetWidth() : pane.rect.GetWidth(),
-                          horizontal ? pane.rect.GetHeight() : pane.best_size.GetHeight());
-        }
-        evt.Skip();
-    });
-
-    m_aui_mgr.Update();
-}
-
-void Plater::priv::remove_plugin_pane(wxWindow* window)
-{
-    m_plugin_panes.erase(window);
-    if (m_aui_mgr.DetachPane(window))
-        m_aui_mgr.Update();
-    window->Destroy();
-}
-
-void Plater::priv::show_plugin_pane(wxWindow* window, bool show)
-{
-    const auto     it   = m_plugin_panes.find(window);
-    wxAuiPaneInfo& pane = m_aui_mgr.GetPane(window);
-    if (it == m_plugin_panes.end() || !pane.IsOk())
-        return;
-    it->second.shown = show;
-    if (pane.IsShown() == plugin_pane_visible(it->second, pane))
-        return;
-    pane.Show(!pane.IsShown());
-    m_aui_mgr.Update();
-}
-
 Sidebar::DockingState Plater::priv::get_sidebar_docking_state() {
    if (!sidebar_layout.is_enabled) {
        return Sidebar::None;
@@ -10243,7 +10124,14 @@ void Plater::priv::remove(size_t obj_idx)
        view3D->enable_layers_editing(false);

    m_worker.cancel_all();
+    std::string obj_name = (obj_idx < model.objects.size()) ? model.objects[obj_idx]->name : std::to_string(obj_idx);
    model.delete_object(obj_idx);
+    {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.name = obj_name;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectDeleted, ctx);
+    }
    //BBS: notify partplate the instance removed
    partplate_list.notify_instance_removed(obj_idx, -1);
    update();
@@ -10276,7 +10164,14 @@ bool Plater::priv::delete_object_from_model(size_t obj_idx, bool refresh_immedia
    if (obj->is_cut())
        sidebar->obj_list()->invalidate_cut_info_for_object(obj_idx);

+    std::string obj_name = obj->name;
    model.delete_object(obj_idx);
+    {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.name = obj_name;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ObjectDeleted, ctx);
+    }
    //BBS: notify partplate the instance removed
    partplate_list.notify_instance_removed(obj_idx, -1);

@@ -10322,10 +10217,22 @@ void Plater::priv::delete_all_objects_from_model()

 void Plater::priv::reset(bool apply_presets_change)
 {
+    // TakeSnapshot below and load_current_presets() further down each re-evaluate the
+    // aggregate dirty flag against a baseline that hasn't been reset yet, so they can toggle
+    // is_dirty() back and forth several times before it settles; coalesce those into one event.
+    ProjectDirtyStateManager::NotificationSuppressor dirty_notify_suppressor(dirty_state);
+
    Plater::TakeSnapshot snapshot(q, _u8L("Reset Project"), UndoRedo::SnapshotType::ProjectSeparator);

    clear_warnings();

+    const std::string closed_project_name = into_u8(get_project_filename());
+    if (!closed_project_name.empty() || !model.objects.empty()) {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.name = closed_project_name;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ProjectClosed, ctx);
+    }
    // A new project must not inherit the previous project's published selection (Feature A/B).
    m_has_pending_published   = false;
    m_pending_published_keys.clear();
@@ -12753,11 +12660,15 @@ void Plater::priv::on_process_completed(SlicingProcessCompletedEvent &evt)
    notification_manager->set_slicing_progress_export_possible();

    // Reset the "export G-code path" name, so that the automatic background processing will be enabled again.
+    const std::string lifecycle_job_name = this->background_process.fff_print() ?
+        this->background_process.fff_print()->output_filename() : std::string();
    this->background_process.reset_export();
    // This bool stops showing export finished notification even when process_completed_with_error is false
    bool has_error = false;
+    std::string lifecycle_error_msg;
    if (evt.error()) {
        auto message = evt.format_error_message();
+        lifecycle_error_msg = message.first;
        if (evt.critical_error()) {
            if (q->m_tracking_popup_menu) {
                // We don't want to pop-up a message box when tracking a pop-up menu.
@@ -12795,6 +12706,14 @@ void Plater::priv::on_process_completed(SlicingProcessCompletedEvent &evt)
        is_finished = true;
    }

+    {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.name = lifecycle_job_name;
+        ctx.code = evt.cancelled() ? Slic3r::LifecycleEvtCode::Warn : (has_error ? Slic3r::LifecycleEvtCode::Error : Slic3r::LifecycleEvtCode::Ok);
+        ctx.msg  = evt.cancelled() ? "cancelled" : (has_error ? lifecycle_error_msg : std::string());
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::SlicingJobComplete, ctx);
+    }
+
    //BBS: set the current plater's slice result to valid
    if (!this->background_process.empty())
        this->background_process.get_current_plate()->update_slice_result_valid_state(evt.success());
@@ -15337,21 +15256,33 @@ int Plater::new_project(bool skip_confirm, bool silent, const wxString& project_
    //get_partplate_list().reinit();
    //get_partplate_list().update_slice_context_to_current_plate(p->background_process);
    //p->preview->update_gcode_result(p->partplate_list.get_current_slice_result());
-    reset(transfer_preset_changes);
-    reset_project_dirty_after_save();
-    reset_project_dirty_initial_presets();
-    wxGetApp().update_saved_preset_from_current_preset();
-    update_project_dirty_from_presets();
+    if (!silent) {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::NewProject, ctx);
+    }
+    {
+        // Same rationale as in Plater::priv::reset(): the whole reset + preset-reload +
+        // baseline-reset sequence below settles into its final dirty state only once it
+        // completes, so hold notifications until then to avoid firing on transient flips.
+        ProjectDirtyStateManager::NotificationSuppressor dirty_notify_suppressor(p->dirty_state);

-    //reset project
-    p->project.reset();
-    //set project name
-    if (project_name.empty())
-        p->set_project_name(_L("Untitled"));
-    else
-        p->set_project_name(project_name);
+        reset(transfer_preset_changes);
+        reset_project_dirty_after_save();
+        reset_project_dirty_initial_presets();
+        wxGetApp().update_saved_preset_from_current_preset();
+        update_project_dirty_from_presets();

-    Plater::TakeSnapshot snapshot(this, "New Project", UndoRedo::SnapshotType::ProjectSeparator);
+        //reset project
+        p->project.reset();
+        //set project name
+        if (project_name.empty())
+            p->set_project_name(_L("Untitled"));
+        else
+            p->set_project_name(project_name);
+
+        Plater::TakeSnapshot snapshot(this, "New Project", UndoRedo::SnapshotType::ProjectSeparator);
+    }

    Model m;
    model().load_from(m); // new id avoid same path name
@@ -15469,6 +15400,13 @@ void Plater::load_project(wxString const& filename2,
        p->set_project_name(_L("Untitled"));
        }

+        {
+            Slic3r::LifecycleEventContext ctx;
+            ctx.name = into_u8(load_restore ? originfile : filename);
+            ctx.code = Slic3r::LifecycleEvtCode::Ok;
+            Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ProjectOpened, ctx);
+        }
+
    } else {
        if (using_exported_file()) {
            BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << __LINE__ << " using ecported set project filename: " << filename;
@@ -15540,11 +15478,23 @@ int Plater::save_project(bool saveAs)
    if (full_pathnames) {
        save_strategy = save_strategy | SaveStrategy::FullPathSources;
    }
+    {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.name = into_u8(filename);
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ProjectBeforeSave, ctx);
+    }
    if (export_3mf(into_path(filename), save_strategy) < 0) {
        MessageDialog(this, _L("Failed to save the project.\nPlease check whether the folder exists online or if other programs have the project file open."),
            _L("Save project"), wxOK | wxICON_WARNING).ShowModal();
        return wxID_CANCEL;
    }
+    {
+        Slic3r::LifecycleEventContext ctx;
+        ctx.name = into_u8(filename);
+        ctx.code = Slic3r::LifecycleEvtCode::Ok;
+        Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::ProjectAfterSave, ctx);
+    }

    Slic3r::remove_backup(model(), false);

@@ -17880,19 +17830,6 @@ Sidebar::DockingState Plater::get_sidebar_docking_state() const { return p->get_

 void Plater::reset_window_layout() { p->reset_window_layout(); }

-void Plater::add_plugin_pane(wxWindow* window, const std::string& name, const wxString& caption, const std::string& dock,
-                             const wxSize& size, std::function<void()> on_close)
-{
-    p->add_plugin_pane(window, name, caption, dock, size, std::move(on_close));
-}
-void Plater::remove_plugin_pane(wxWindow* window) { p->remove_plugin_pane(window); }
-void Plater::remove_plugin_panes()
-{
-    while (!p->m_plugin_panes.empty())
-        p->remove_plugin_pane(p->m_plugin_panes.begin()->first);
-}
-void Plater::show_plugin_pane(wxWindow* window, bool show) { p->show_plugin_pane(window, show); }
-
 //BBS
 void Plater::select_curr_plate_all() { p->select_curr_plate_all(); }
 void Plater::remove_curr_plate_all() { p->remove_curr_plate_all(); }
@@ -20877,6 +20814,14 @@ void Plater::changed_object(ModelObject &object){
        
    // Check outside bed
    get_current_canvas3D()->requires_check_outside_state();
+
+    if (!is_loading_project()) {
+        LifecycleEventContext ctx;
+        ctx.name = object.name;
+        ctx.id = std::to_string(object.id().id);
+        ctx.source = "geometry";
+        fire_lifecycle_event(LifecycleEvent::ObjectChanged, ctx);
+    }
 }

 void Plater::changed_object(int obj_idx)
@@ -20913,6 +20858,20 @@ void Plater::changed_objects(const std::vector<size_t>& object_idxs)

    // update print
    this->p->schedule_background_process();
+
+    if (!is_loading_project()) {
+        for (size_t obj_idx : object_idxs) {
+            if (obj_idx >= p->model.objects.size() || p->model.objects[obj_idx] == nullptr)
+                continue;
+
+            LifecycleEventContext ctx;
+            ctx.name = p->model.objects[obj_idx]->name;
+            ctx.id = std::to_string(p->model.objects[obj_idx]->id().id);
+            ctx.index = static_cast<int>(obj_idx);
+            ctx.source = "geometry";
+            fire_lifecycle_event(LifecycleEvent::ObjectChanged, ctx);
+        }
+    }
 }

 void Plater::schedule_background_process(bool schedule/* = true*/)
@@ -475,17 +475,6 @@ public:

    void reset_window_layout();

-    // Plugin panes dock alongside the sidebar; `window` must be a child of the Plater. `dock` is
-    // "left", "right", "bottom" or "float", and `size` is in DIPs. A pane closed from its own close
-    // button is destroyed after on_close runs; remove_plugin_pane() destroys it without calling on_close.
-    void add_plugin_pane(wxWindow* window, const std::string& name, const wxString& caption, const std::string& dock,
-                         const wxSize& size, std::function<void()> on_close);
-    void remove_plugin_pane(wxWindow* window);
-    void show_plugin_pane(wxWindow* window, bool show);
-    // Removes every plugin pane without calling on_close, for MainFrame::shutdown() (app exit and a
-    // language switch), while the Plater and any floating frames still exist.
-    void remove_plugin_panes();
-
    // Called after the Preferences dialog is closed and the program settings are saved.
    // Update the UI based on the current preferences.
    void update_ui_from_settings();
@@ -1,104 +0,0 @@
-#include "PluginDockPanel.hpp"
-
-#include "GUI_App.hpp"
-#include "Plater.hpp"
-#include "Widgets/PluginWebContent.hpp"
-
-#include <wx/weakref.h>
-
-#include <algorithm>
-#include <utility>
-
-namespace Slic3r { namespace GUI {
-
-std::string plugin_pane_name(const std::string& plugin_key, const std::string& title)
-{
-    std::string name = "plugin:" + plugin_key + ":" + title;
-    std::replace_if(name.begin(), name.end(), [](char c) { return c == '|' || c == ';' || c == '=' || c == '\\'; }, '_');
-    return name;
-}
-
-PluginDockPanel::PluginDockPanel(wxWindow*          parent,
-                                 const std::string& html,
-                                 MessageHandler     on_message,
-                                 CloseHandler       on_close,
-                                 CloseHandler       on_destroyed)
-    : PluginWebPanel(parent, plugin_web::orca_bridge_script())
-    , m_html(html)
-    , m_on_message(std::move(on_message))
-    , m_on_close(std::move(on_close))
-    , m_on_destroyed(std::move(on_destroyed))
-{
-    // A link asking for a new window has nowhere to open from a docked panel.
-    browser()->Bind(wxEVT_WEBVIEW_NEWWINDOW, [](wxWebViewEvent& event) { event.Veto(); });
-}
-
-PluginDockPanel::~PluginDockPanel()
-{
-    if (m_on_destroyed)
-        m_on_destroyed();
-}
-
-bool PluginDockPanel::on_page_message(const std::string& kind, const nlohmann::json& data)
-{
-    if (kind == "message") {
-        if (m_on_message)
-            m_on_message(data);
-        return true;
-    }
-    if (kind == "close") {
-        request_close();
-        return true;
-    }
-    return false;
-}
-
-void PluginDockPanel::push_message(const nlohmann::json& data)
-{
-    if (!m_closing)
-        post_to_page(data.dump(-1, ' ', false, nlohmann::json::error_handler_t::replace));
-}
-
-void PluginDockPanel::fire_close()
-{
-    if (m_closing)
-        return;
-    m_closing = true;
-    if (m_on_close) {
-        CloseHandler on_close = std::move(m_on_close);
-        m_on_close            = nullptr;
-        on_close();
-    }
-}
-
-void PluginDockPanel::request_close()
-{
-    if (m_closing)
-        return;
-    fire_close();
-    // A close requested by the page arrives inside the web view's own script-message callback,
-    // which must return before the web view is destroyed. Every other close path destroys the panel
-    // at once, so it can be gone by the time this runs.
-    wxWeakRef<PluginDockPanel> self(this);
-    CallAfter([self]() {
-        if (self)
-            self->remove_pane();
-    });
-}
-
-void PluginDockPanel::destroy_for_plugin()
-{
-    m_closing  = true;
-    m_on_close = nullptr;
-    remove_pane();
-}
-
-void PluginDockPanel::remove_pane()
-{
-    if (Plater* plater = wxGetApp().plater())
-        plater->remove_plugin_pane(this);
-    else
-        Destroy();
-}
-
-}} // namespace Slic3r::GUI
@@ -1,59 +0,0 @@
-#pragma once
-
-#include "PluginWebPanel.hpp"
-
-#include <functional>
-#include <string>
-
-namespace Slic3r { namespace GUI {
-
-// Name of a plugin's pane in the Plater's dock manager. It stays the same across sessions, so the
-// saved window layout can put the pane back, and it never contains a wxAuiManager layout delimiter.
-std::string plugin_pane_name(const std::string& plugin_key, const std::string& title);
-
-// A PluginWebPanel docked in the Plater's dock manager, using the same window.orca bridge as
-// PluginWebDialog (without submit, which only a plugin window handles). Python-agnostic for the same
-// reason: it can be destroyed on the main thread without the GIL, so its hooks must not capture
-// pybind11 objects.
-class PluginDockPanel : public PluginWebPanel
-{
-public:
-    using MessageHandler = std::function<void(const nlohmann::json& data)>;
-    using CloseHandler   = std::function<void()>;
-
-    // on_close fires once, on a user or page initiated close. on_destroyed runs from the destructor
-    // on every path and must touch host-side state only.
-    PluginDockPanel(wxWindow*          parent,
-                    const std::string& html,
-                    MessageHandler     on_message,
-                    CloseHandler       on_close,
-                    CloseHandler       on_destroyed);
-    ~PluginDockPanel() override;
-
-    // Main thread only.
-    void push_message(const nlohmann::json& data);
-    // Fires on_close, then removes the pane.
-    void request_close();
-    // Removes the pane without firing on_close, for plugin unload. Unlike request_close() it destroys
-    // the panel at once, which is safe because nothing a plugin page can call unloads a plugin: unload
-    // comes from the host (Plugins dialog, install, logout), never from this panel's own callbacks.
-    void destroy_for_plugin();
-    // Fires on_close at most once. Runs when the pane's own close button is used, through the handler
-    // the panel is registered with.
-    void fire_close();
-
-protected:
-    std::optional<std::string> page_html() override { return m_html; }
-    bool on_page_message(const std::string& kind, const nlohmann::json& data) override;
-
-private:
-    void remove_pane();
-
-    std::string    m_html;
-    bool           m_closing{false};
-    MessageHandler m_on_message;
-    CloseHandler   m_on_close;
-    CloseHandler   m_on_destroyed;
-};
-
-}} // namespace Slic3r::GUI
@@ -1,7 +1,11 @@
 #include "PluginWebDialog.hpp"

+#include "slic3r/GUI/GUI.hpp"
 #include "slic3r/GUI/GUI_App.hpp"
-#include "slic3r/GUI/Widgets/PluginWebContent.hpp"
+
+#include <libslic3r/Utils.hpp>
+
+#include <boost/filesystem.hpp>

 #include <wx/event.h>

@@ -9,6 +13,50 @@

 namespace Slic3r { namespace GUI {

+namespace {
+
+// Injected into the top-level page at document start (before the plugin's own
+// scripts). Defines window.orca as the only host surface the page may use. It
+// references window.wx lazily (at call time) so it never races the backend's
+// deferred registration of the "wx" message handler. Guarded against
+// double-injection so it is harmless if also prepended.
+constexpr char ORCA_BRIDGE_JS[] = R"JS(
+(function () {
+  if (window.top !== window.self) return;
+  if (window.orca) return;
+  var handlers = [];
+  function send(kind, data) {
+    try {
+      window.wx.postMessage(JSON.stringify({
+        channel: 'orca', kind: kind, data: (data === undefined ? null : data)
+      }));
+    } catch (e) { /* bridge not ready yet */ }
+  }
+  window.orca = {
+    postMessage: function (d) { send('message', d); },
+    submit:      function (d) { send('submit', d); },
+    close:       function ()  { send('close'); },
+    onMessage:   function (cb) { if (typeof cb === 'function') handlers.push(cb); }
+  };
+  window.__orcaDispatch = function (payload) {
+    var data = payload ? payload.data : null;
+    for (var i = 0; i < handlers.length; i++) {
+      try { handlers[i](data); } catch (e) {}
+    }
+  };
+})();
+)JS";
+
+// file:// base URL for plugin HTML loaded via SetPage, so self-referencing
+// relative URLs resolve against the bundled web resources directory.
+wxString web_base_url()
+{
+    const std::string dir = (boost::filesystem::path(resources_dir()) / "web").make_preferred().string();
+    return wxString("file://") + from_u8(dir) + "/";
+}
+
+} // namespace
+
 PluginWebDialog::PluginWebDialog(wxWindow*          parent,
                                 const wxString&    title,
                                 const std::string& html,
@@ -27,7 +75,7 @@ PluginWebDialog::PluginWebDialog(wxWindow*          parent,
 {
    // A tiny bundled bootstrap page brings the webview up; the real plugin HTML
    // is swapped in via SetPage once the bootstrap finishes loading.
-    create_webview(plugin_web::BOOTSTRAP_PAGE, title, size, wxSize(320, 240));
+    create_webview("web/dialog/PluginWebDialog/blank.html", title, size, wxSize(320, 240));

    // Paint the window/webview in the themed background so there is no white
    // flash before the (transparent) bootstrap page and plugin HTML render.
@@ -49,7 +97,7 @@ void PluginWebDialog::add_user_scripts()
 {
    if (wxWebView* wv = browser()) {
        wv->AddUserScript(wxString::FromUTF8(WebViewHostDialog::plugin_defaults_user_script()));
-        wv->AddUserScript(wxString::FromUTF8(plugin_web::orca_bridge_script()));
+        wv->AddUserScript(ORCA_BRIDGE_JS);
    }
 }

@@ -91,31 +139,19 @@ void PluginWebDialog::destroy_for_plugin(PluginWebDialog* dialog)

 void PluginWebDialog::on_bootstrap_event(wxWebViewEvent& event)
 {
-    // The first bootstrap load (or its error) triggers the swap to plugin HTML.
-    if (!m_content_loaded)
-        load_plugin_content();
-    // WebKit reloads the SetPage base URL rather than the injected page, and the injected document
-    // reports that same URL, so a load of it that is not the swap we started is a browser reload
-    // and the plugin HTML has to be put back. A page the plugin linked to arrives under its own
-    // URL and is left alone; a post-load error only ever means a failed subresource. The Edge
-    // backend ignores the base URL, so the comparison never matches there, and WebView2 reloads
-    // SetPage content from its own history entry anyway.
-    else if (event.GetEventType() == wxEVT_WEBVIEW_LOADED) {
-        if (m_own_page_load)
-            m_own_page_load = false;
-        else if (plugin_web::is_content_url(event.GetURL()))
-            load_plugin_content();
-    }
+    // The first bootstrap load (or its error) triggers the swap to plugin HTML;
+    // the resulting plugin-page load is ignored (guarded by m_content_loaded).
+    load_plugin_content();
    event.Skip();
 }

 void PluginWebDialog::load_plugin_content()
 {
+    if (m_content_loaded)
+        return;
    m_content_loaded = true;
-    if (wxWebView* wv = browser()) {
-        m_own_page_load = true;
-        wv->SetPage(wxString::FromUTF8(m_html), plugin_web::content_base_url());
-    }
+    if (wxWebView* wv = browser())
+        wv->SetPage(wxString::FromUTF8(m_html), web_base_url());
 }

 void PluginWebDialog::on_script_message(const nlohmann::json& payload)
@@ -72,7 +72,6 @@ private:

    std::string                   m_html;
    bool                          m_content_loaded{false};
-    bool                          m_own_page_load{false}; // a SetPage of the plugin HTML is in flight
    bool                          m_open{true};
    bool                          m_close_fired{false};
    std::optional<nlohmann::json> m_result;
@@ -1,109 +0,0 @@
-#include "PluginWebPanel.hpp"
-
-#include "GUI.hpp"
-#include "GUI_App.hpp"
-#include "Widgets/PluginWebContent.hpp"
-#include "Widgets/WebView.hpp"
-#include "Widgets/WebViewHostDialog.hpp"
-
-#include <libslic3r/Utils.hpp>
-
-#include <boost/filesystem.hpp>
-#include <boost/log/trivial.hpp>
-
-#include <wx/sizer.h>
-
-namespace Slic3r { namespace GUI {
-
-PluginWebPanel::PluginWebPanel(wxWindow* parent, const char* bridge_script)
-    : wxPanel(parent, wxID_ANY)
-{
-    SetBackgroundColour(wxGetApp().get_window_default_clr());
-    auto* sizer = new wxBoxSizer(wxVERTICAL);
-    SetSizer(sizer);
-
-    // Never null: WebView::CreateWebView substitutes a placeholder view when no backend is available.
-    const std::string bootstrap = (boost::filesystem::path(resources_dir()) / plugin_web::BOOTSTRAP_PAGE).make_preferred().string();
-    m_browser = WebView::CreateWebView(this, wxString("file://") + from_u8(bootstrap));
-    m_browser->SetBackgroundColour(GetBackgroundColour());
-    m_browser->AddUserScript(wxString::FromUTF8(WebViewHostDialog::theme_user_script()));
-    m_browser->AddUserScript(wxString::FromUTF8(WebViewHostDialog::plugin_defaults_user_script()));
-    m_browser->AddUserScript(wxString::FromUTF8(bridge_script));
-    m_browser->Bind(wxEVT_WEBVIEW_LOADED, &PluginWebPanel::on_load_event, this);
-    m_browser->Bind(wxEVT_WEBVIEW_ERROR, &PluginWebPanel::on_load_event, this);
-    m_browser->Bind(wxEVT_WEBVIEW_SCRIPT_MESSAGE_RECEIVED, &PluginWebPanel::on_script_message, this);
-    m_browser->Bind(EVT_WEBVIEW_RECREATED, &PluginWebPanel::on_webview_recreated, this);
-    sizer->Add(m_browser, 1, wxEXPAND);
-}
-
-void PluginWebPanel::on_load_event(wxWebViewEvent& event)
-{
-    if (!m_content_loaded) {
-        // The first bootstrap load (or its error) triggers the swap to the plugin HTML.
-        m_content_loaded = true;
-        load_page_html();
-    } else if (event.GetEventType() != wxEVT_WEBVIEW_LOADED) {
-        // A failed load has no document to theme, but it does end the swap it belonged to: leaving
-        // the flag set would make the next reload look like our own load and be swallowed.
-        m_own_page_load = false;
-    } else {
-        // WebKit reloads the SetPage base URL rather than the injected page, and the injected
-        // document reports that same URL, so a load of it that is not the swap we started is a
-        // browser reload and the plugin HTML has to be put back. A page a link loaded arrives
-        // under its own URL. The Edge backend ignores the base URL, so this never matches there.
-        if (!m_own_page_load && plugin_web::is_content_url(event.GetURL())) {
-            load_page_html();
-        } else {
-            m_own_page_load = false;
-            // The document-start theme script keeps the theme the web view was created with, so
-            // bring every later document (the plugin page, or one a link loaded) onto the app theme.
-            apply_theme();
-        }
-    }
-    event.Skip();
-}
-
-void PluginWebPanel::load_page_html()
-{
-    if (const std::optional<std::string> html = page_html()) {
-        m_own_page_load = true;
-        m_browser->SetPage(wxString::FromUTF8(*html), plugin_web::content_base_url());
-    }
-}
-
-void PluginWebPanel::on_script_message(wxWebViewEvent& event)
-{
-    const nlohmann::json payload = nlohmann::json::parse(event.GetString().utf8_string(), nullptr, false);
-    if (!payload.is_object() || payload.value("channel", std::string()) != "orca")
-        return;
-
-    const std::string kind = payload.value("kind", std::string());
-    if (!on_page_message(kind, payload.contains("data") ? payload["data"] : nlohmann::json()))
-        BOOST_LOG_TRIVIAL(warning) << "Plugin web panel ignored a window.orca '" << kind << "' call; this host does not support it";
-}
-
-void PluginWebPanel::on_webview_recreated(wxCommandEvent&)
-{
-    SetBackgroundColour(wxGetApp().get_window_default_clr());
-    m_browser->SetBackgroundColour(GetBackgroundColour());
-    Refresh();
-    // Handled without Skip(), so WebView::RecreateAll() does not reload the plugin page.
-    apply_theme();
-}
-
-void PluginWebPanel::apply_theme()
-{
-    WebView::RunScript(m_browser, wxString::FromUTF8(WebViewHostDialog::theme_apply_script()));
-}
-
-void PluginWebPanel::post_to_page(const std::string& json)
-{
-    WebView::RunScript(m_browser, wxString::Format(
-        "(function dispatch(payload, attempts) {\n"
-        "  if (typeof window.__orcaDispatch === 'function') { window.__orcaDispatch(payload); return; }\n"
-        "  if (attempts < 100) window.setTimeout(function() { dispatch(payload, attempts + 1); }, 25);\n"
-        "})({data: %s}, 0);",
-        wxString::FromUTF8(json)));
-}
-
-}} // namespace Slic3r::GUI
@@ -1,47 +0,0 @@
-#pragma once
-
-#include <nlohmann/json.hpp>
-
-#include <wx/panel.h>
-#include <wx/webview.h>
-
-#include <optional>
-#include <string>
-
-namespace Slic3r { namespace GUI {
-
-// A panel hosting plugin-supplied HTML in a web view, shared by plugin Pages tabs and docked panels.
-// It loads the bundled bootstrap page, swaps the plugin HTML in once that has loaded, registers the
-// host theme, the plugin element defaults and the given window.orca bridge, keeps the page on the
-// app theme, and routes the bridge's messages to on_page_message().
-class PluginWebPanel : public wxPanel
-{
-public:
-    PluginWebPanel(wxWindow* parent, const char* bridge_script);
-
-protected:
-    wxWebView* browser() const { return m_browser; }
-
-    // Delivers an already serialised JSON value to the page's window.orca.onMessage handlers,
-    // waiting briefly for the bridge while the page is still loading. Main thread only.
-    void post_to_page(const std::string& json);
-
-    // The plugin HTML to show once the bootstrap page has loaded; std::nullopt leaves it blank.
-    virtual std::optional<std::string> page_html() = 0;
-    // A window.orca message from the page. Returns false for a kind this host does not handle,
-    // which is logged so a dropped call is diagnosable.
-    virtual bool on_page_message(const std::string& kind, const nlohmann::json& data) = 0;
-
-private:
-    void on_load_event(wxWebViewEvent& event);
-    void on_script_message(wxWebViewEvent& event);
-    void on_webview_recreated(wxCommandEvent& event);
-    void apply_theme();
-    void load_page_html();
-
-    wxWebView* m_browser{nullptr};
-    bool       m_content_loaded{false};
-    bool       m_own_page_load{false}; // a SetPage of the plugin HTML is in flight
-};
-
-}} // namespace Slic3r::GUI
@@ -6,6 +6,7 @@
 #include "MainFrame.hpp"
 #include "I18N.hpp"
 #include "Plater.hpp"
+#include "libslic3r/LifecycleEvents.hpp"

 #include <boost/algorithm/string/predicate.hpp>

@@ -17,13 +18,23 @@ namespace GUI {

 void ProjectDirtyStateManager::update_from_undo_redo_stack(bool dirty)
 {
+    const bool was_dirty = is_dirty();
    m_plater_dirty = dirty;
+    notify_dirty_change(was_dirty, "undo_redo");
    if (const Plater *plater = wxGetApp().plater(); plater && wxGetApp().initialized())
        wxGetApp().mainframe->update_title();
 }

+void ProjectDirtyStateManager::set_plater_dirty(bool is_dirty)
+{
+    const bool was_dirty = this->is_dirty();
+    m_plater_dirty = is_dirty;
+    notify_dirty_change(was_dirty, "plater");
+}
+
 void ProjectDirtyStateManager::update_from_presets()
 {
+    const bool was_dirty = is_dirty();
    m_presets_dirty = false;
    // check switching of the presets only for exist/loaded project, but not for new
    GUI_App &app = wxGetApp();
@@ -45,18 +56,53 @@ void ProjectDirtyStateManager::update_from_presets()
    }
    m_presets_dirty |= app.has_unsaved_preset_changes();
    m_project_config_dirty = m_initial_project_config != app.preset_bundle->project_config;
+    notify_dirty_change(was_dirty, "presets");
    app.mainframe->update_title();
 }

 void ProjectDirtyStateManager::reset_after_save()
 {
+    const bool was_dirty = is_dirty();
    this->reset_initial_presets();
    m_plater_dirty  = false;
    m_presets_dirty = false;
    m_project_config_dirty = false;
+    notify_dirty_change(was_dirty, "save");
    wxGetApp().mainframe->update_title();
 }

+void ProjectDirtyStateManager::notify_dirty_change(bool was_dirty, const char *source)
+{
+    if (m_suppress_depth > 0)
+        return;
+
+    const bool dirty = is_dirty();
+    if (was_dirty == dirty)
+        return;
+
+    LifecycleEventContext ctx;
+    ctx.code = LifecycleEvtCode::Ok;
+    ctx.dirty = dirty;
+    ctx.source = source;
+    fire_lifecycle_event(LifecycleEvent::ProjectDirtyChanged, ctx);
+}
+
+void ProjectDirtyStateManager::begin_suppress_notifications()
+{
+    if (m_suppress_depth == 0)
+        m_suppress_entry_dirty = is_dirty();
+    ++m_suppress_depth;
+}
+
+void ProjectDirtyStateManager::end_suppress_notifications()
+{
+    assert(m_suppress_depth > 0);
+    if (m_suppress_depth > 0)
+        --m_suppress_depth;
+    if (m_suppress_depth == 0)
+        notify_dirty_change(m_suppress_entry_dirty, "batch");
+}
+
 void ProjectDirtyStateManager::reset_initial_presets()
 {
    m_initial_presets.fill(std::string{});
@@ -168,4 +214,3 @@ void ProjectDirtyStateManager::render_debug_window() const

 } // namespace GUI
 } // namespace Slic3r
-
@@ -14,21 +14,42 @@ public:
    void reset_after_save();
    void reset_initial_presets();

-    void set_plater_dirty(bool is_dirty) { m_plater_dirty = is_dirty; }
+    void set_plater_dirty(bool is_dirty);
    bool is_dirty() const { return m_plater_dirty || m_project_config_dirty || m_presets_dirty; }
    bool is_presets_dirty() const { return m_presets_dirty; }

+    // RAII guard coalescing dirty-state updates: while any guard is alive, ProjectDirtyChanged
+    // notifications are held back; when the outermost guard is destroyed, at most one
+    // notification fires, reflecting only the net change across the whole guarded scope.
+    class NotificationSuppressor
+    {
+    public:
+        explicit NotificationSuppressor(ProjectDirtyStateManager &owner) : m_owner(owner) { m_owner.begin_suppress_notifications(); }
+        ~NotificationSuppressor() { m_owner.end_suppress_notifications(); }
+        NotificationSuppressor(const NotificationSuppressor &) = delete;
+        NotificationSuppressor &operator=(const NotificationSuppressor &) = delete;
+    private:
+        ProjectDirtyStateManager &m_owner;
+    };
+
 #if ENABLE_PROJECT_DIRTY_STATE_DEBUG_WINDOW
    void render_debug_window() const;
 #endif // ENABLE_PROJECT_DIRTY_STATE_DEBUG_WINDOW

 private:
+    void notify_dirty_change(bool was_dirty, const char *source);
+    void begin_suppress_notifications();
+    void end_suppress_notifications();
+
    // Does the Undo / Redo stack indicate the project is dirty?
    bool                                        m_plater_dirty { false };
    // Do the presets indicate the project is dirty?
    bool                                        m_presets_dirty { false };
    // Is the project config dirty?
    bool                                        m_project_config_dirty { false };
+    // NotificationSuppressor nesting depth and the dirty state observed when the outermost guard began.
+    int                                          m_suppress_depth { 0 };
+    bool                                         m_suppress_entry_dirty { false };
    // Keeps track of preset names selected at the time of last project save.
    std::array<std::string, Preset::TYPE_COUNT> m_initial_presets;
    DynamicPrintConfig                          m_initial_project_config;
@@ -38,6 +38,7 @@
 #include "slic3r/Utils/NetworkAgentFactory.hpp"
 #include "slic3r/Utils/PresetUpdater.hpp"
 #include "slic3r/plugin/PluginConfig.hpp"
+#include "slic3r/plugin/PluginManager.hpp"
 #include "Plater.hpp"
 #include "MainFrame.hpp"
 #include "format.hpp"
@@ -6918,6 +6919,20 @@ bool Tab::select_preset(
        }
        load_current_preset();

+        {
+            Slic3r::LifecycleEventContext ctx;
+            ctx.name = preset_name;
+            ctx.code = Slic3r::LifecycleEvtCode::Ok;
+            switch (m_type) {
+            case Preset::TYPE_PRINT:        ctx.msg = "print"; break;
+            case Preset::TYPE_SLA_PRINT:    ctx.msg = "sla_print"; break;
+            case Preset::TYPE_FILAMENT:     ctx.msg = "filament"; break;
+            case Preset::TYPE_SLA_MATERIAL: ctx.msg = "sla_material"; break;
+            case Preset::TYPE_PRINTER:      ctx.msg = "printer"; break;
+            default: break;
+            }
+            Slic3r::fire_lifecycle_event(Slic3r::LifecycleEvent::PresetSelected, ctx);
+        }

        if (delete_third_printer) {
            wxGetApp().CallAfter([filament_presets, process_presets]() {
@@ -1,6 +1,7 @@
 #include "TaskManager.hpp"

 #include "libslic3r/Thread.hpp"
+#include "libslic3r/LifecycleEvents.hpp"
 #include "nlohmann/json.hpp"
 #include "MainFrame.hpp"
 #include "GUI_App.hpp"
@@ -210,6 +211,13 @@ int TaskManager::schedule(TaskStateInfo* task)
    assert(task->state() == TaskState::TS_PENDING);
    task->set_state(TaskState::TS_SENDING);

+    LifecycleEventContext start_ctx;
+    start_ctx.name = task->params().project_name;
+    start_ctx.device_id = task->params().dev_id;
+    start_ctx.job_id = std::to_string(task->task_info_id);
+    start_ctx.source = "task_manager";
+    fire_lifecycle_event(LifecycleEvent::PrintJobStarted, start_ctx);
+
    BOOST_LOG_TRIVIAL(trace) << "task_manager: schedule a task to dev_id = " << task->params().dev_id;
    boost::thread* new_sending_thread = new boost::thread();
    *new_sending_thread = Slic3r::create_thread(
@@ -237,6 +245,16 @@ int TaskManager::schedule(TaskStateInfo* task)
                    task->set_state(TaskState::TS_SEND_CANCELED);
                }
            }
+
+            LifecycleEventContext finish_ctx;
+            finish_ctx.name = task->params().project_name;
+            finish_ctx.device_id = task->params().dev_id;
+            finish_ctx.job_id = std::to_string(task->task_info_id);
+            finish_ctx.source = "task_manager";
+            finish_ctx.code = result == 0 ? LifecycleEvtCode::Ok :
+                (task->is_canceled() ? LifecycleEvtCode::Warn : LifecycleEvtCode::Error);
+            finish_ctx.msg = result == 0 ? "" : (task->is_canceled() ? "cancelled" : "failed");
+            fire_lifecycle_event(LifecycleEvent::PrintJobFinished, finish_ctx);
     
            /* remove from sending task list */
            m_scedule_mutex.lock();
@@ -1,20 +0,0 @@
-#include "AuiPaneLayout.hpp"
-
-namespace Slic3r { namespace GUI {
-
-std::string aui_pane_layout_entry(const std::string& layout, const std::string& pane_name)
-{
-    // Panes are separated by '|'; SavePerspective() escapes a '|' inside a caption as "\|".
-    const std::string prefix = "name=" + pane_name + ";";
-    size_t            begin  = 0;
-    for (size_t i = 0; i <= layout.size(); ++i) {
-        if (i < layout.size() && (layout[i] != '|' || (i > 0 && layout[i - 1] == '\\')))
-            continue;
-        if (layout.compare(begin, prefix.size(), prefix) == 0)
-            return layout.substr(begin, i - begin);
-        begin = i + 1;
-    }
-    return {};
-}
-
-}} // namespace Slic3r::GUI
@@ -1,11 +0,0 @@
-#pragma once
-
-#include <string>
-
-namespace Slic3r { namespace GUI {
-
-// The part a wxAuiManager layout string (wxAuiManager::SavePerspective) holds for `pane_name`, in the
-// form wxAuiManager::LoadPaneInfo() takes, or empty when the layout has no such pane.
-std::string aui_pane_layout_entry(const std::string& layout, const std::string& pane_name);
-
-}} // namespace Slic3r::GUI
@@ -1,64 +0,0 @@
-#include "PluginWebContent.hpp"
-
-#include "slic3r/GUI/GUI.hpp"
-
-#include <libslic3r/Utils.hpp>
-
-#include <boost/filesystem.hpp>
-
-#include <wx/uri.h>
-
-namespace Slic3r { namespace GUI { namespace plugin_web {
-
-namespace {
-
-// Injected into the top-level page at document start (before the plugin's own
-// scripts). Defines window.orca as the only host surface the page may use. It
-// references window.wx lazily (at call time) so it never races the backend's
-// deferred registration of the "wx" message handler. Guarded against
-// double-injection so it is harmless if also prepended.
-constexpr char ORCA_BRIDGE_JS[] = R"JS(
-(function () {
-  if (window.top !== window.self) return;
-  if (window.orca) return;
-  var handlers = [];
-  function send(kind, data) {
-    try {
-      window.wx.postMessage(JSON.stringify({
-        channel: 'orca', kind: kind, data: (data === undefined ? null : data)
-      }));
-    } catch (e) { /* bridge not ready yet */ }
-  }
-  window.orca = {
-    postMessage: function (d) { send('message', d); },
-    submit:      function (d) { send('submit', d); },
-    close:       function ()  { send('close'); },
-    onMessage:   function (cb) { if (typeof cb === 'function') handlers.push(cb); }
-  };
-  window.__orcaDispatch = function (payload) {
-    var data = payload ? payload.data : null;
-    for (var i = 0; i < handlers.length; i++) {
-      try { handlers[i](data); } catch (e) {}
-    }
-  };
-})();
-)JS";
-
-} // namespace
-
-wxString content_base_url()
-{
-    const std::string dir = (boost::filesystem::path(resources_dir()) / "web").make_preferred().string();
-    return wxString("file://") + from_u8(dir) + "/";
-}
-
-bool is_content_url(const wxString& url)
-{
-    // The web view reports the URL it parsed, which escapes anything the resources path holds
-    // (a space, a non-ASCII character), while content_base_url() is the raw path.
-    return wxURI::Unescape(url.BeforeFirst('#')) == content_base_url();
-}
-
-const char* orca_bridge_script() { return ORCA_BRIDGE_JS; }
-
-}}} // namespace Slic3r::GUI::plugin_web
@@ -1,26 +0,0 @@
-#pragma once
-
-#include <wx/string.h>
-
-namespace Slic3r { namespace GUI { namespace plugin_web {
-
-// What every plugin web view is built from, shared by the hosts that show plugin HTML
-// (PluginWebDialog, PluginWebPanel and its subclasses) without either of them owning it.
-
-// The bundled blank page a plugin web view loads before the plugin HTML is swapped in.
-constexpr const char* BOOTSTRAP_PAGE = "web/dialog/PluginWebDialog/blank.html";
-
-// The file:// base URL plugin HTML is loaded against, so relative URLs resolve against the bundled
-// web resources.
-wxString content_base_url();
-
-// Whether a loaded document is the plugin HTML's own base URL, ignoring any fragment the page
-// navigated to. WebKit reports that URL both for the injected page and for the reload that
-// replaces it with the directory itself, so a load of any other URL is a page the plugin linked to.
-bool is_content_url(const wxString& url);
-
-// The window.orca bridge of plugin windows and docked panels: postMessage, submit, close and
-// onMessage. Each host acts only on the message kinds it supports; Pages tabs ship their own bridge.
-const char* orca_bridge_script();
-
-}}} // namespace Slic3r::GUI::plugin_web
@@ -75,8 +75,6 @@ if(document.documentElement)

 } // namespace

-std::string WebViewHostDialog::theme_apply_script() { return host_theme_apply_js(); }
-
 // Document-start user script: injects the contract <style>, stamps data-orca-theme before
 // first paint, and raises a JS flag so the legacy globalapi.js dark.css poll stands down for
 // host-themed pages. The WebView2 timing guard lives in document_start_injector().
@@ -52,8 +52,6 @@ public:
    // Shared by modeless Pages tabs and PluginWebDialog.
    static std::string theme_user_script();
    static std::string plugin_defaults_user_script();
-    // Re-themes an already-loaded page in place, for web views hosted outside a dialog.
-    static std::string theme_apply_script();

 protected:
    wxWebView* browser() const { return m_browser; }
@@ -23,6 +23,7 @@
 #include "CrealityPrint.hpp"
 #include "../GUI/PrintHostDialogs.hpp"
 #include "../GUI/MainFrame.hpp"
+#include "slic3r/plugin/PluginManager.hpp"
 #include "Obico.hpp"
 #include "Flashforge.hpp"
 #include "SimplyPrint.hpp"
@@ -358,12 +359,29 @@ void PrintHostJobQueue::priv::perform_job(PrintHostJob the_job)
 {
    emit_progress(0);   // Indicate the upload is starting

+    // Captured before upload_data is moved into upload() below.
+    const std::string upload_filename = the_job.upload_data.source_path.filename().string();
+
+    {
+        LifecycleEventContext ctx;
+        ctx.name = upload_filename;
+        ctx.code = LifecycleEvtCode::Ok;
+        fire_lifecycle_event(LifecycleEvent::UploadStarted, ctx);
+    }
+
    bool success = the_job.printhost->upload(std::move(the_job.upload_data),
        [this](Http::Progress progress, bool &cancel)   { this->progress_fn(std::move(progress), cancel); },
        [this](wxString error)                          { this->error_fn(std::move(error)); },
        [this](wxString tag, wxString host)             { this->info_fn(std::move(tag), std::move(host)); }
    );

+    {
+        LifecycleEventContext ctx;
+        ctx.name  = upload_filename;
+        ctx.code  = success ? LifecycleEvtCode::Ok : LifecycleEvtCode::Error;
+        fire_lifecycle_event(LifecycleEvent::UploadFinished, ctx);
+    }
+
    if (success) {
        emit_progress(100);
        if (the_job.switch_to_device_tab) {
@@ -7,6 +7,7 @@

 #include "libslic3r/Config.hpp"
 #include "libslic3r/Exception.hpp"
+#include "libslic3r/LifecycleEvents.hpp"
 #include "libslic3r/Print.hpp"
 #include "libslic3r_version.h"

@@ -46,6 +47,16 @@ void install_capability_resolver()
    });
 }

+// Global libslic3r-side seam (Slic3r::fire_lifecycle_event, in libslic3r/LifecycleEvents.hpp):
+// broadcasts to every loaded, enabled capability regardless of type, unlike the SlicingPipeline
+// hook below which only targets picker-selected SlicingPipeline capabilities.
+void install_lifecycle_event_hook()
+{
+    set_lifecycle_hook_fn([](LifecycleEvent event, const LifecycleEventContext& ctx) {
+        PluginManager::instance().dispatch_lifecycle_event(event, ctx);
+    });
+}
+
 // Print::process() fires this hook at each pipeline seam on the slicing worker
 // thread; here we run the picker-selected SlicingPipeline capabilities. Per
 // capability we acquire the GIL, honor cancellation, and convert a plugin
@@ -122,12 +133,14 @@ void install()
 {
    install_capability_resolver();
    install_slicing_pipeline_hook();
+    install_lifecycle_event_hook();
 }

 void uninstall()
 {
    ConfigBase::set_resolve_capability_fn(nullptr);
    Print::set_slicing_pipeline_hook_fn(nullptr);
+    set_lifecycle_hook_fn(nullptr);
 }

 } // namespace Slic3r::plugin_hooks
@@ -1,5 +1,6 @@
 #include "PluginManager.hpp"

+#include <exception>
 #include <libslic3r/Utils.hpp>
 #include <memory>
 #include <pybind11/embed.h>
@@ -2042,6 +2043,8 @@ bool PluginManager::delete_and_unsubscribe_cloud_plugin(const std::string& plugi
        return false;
    }

+    unload_plugin(plugin_key);
+
    if (!m_cloud_service.request_cloud_unsubscribe(descriptor, error)) {
        set_plugin_error(plugin_key, error);
        return false;
@@ -2087,4 +2090,24 @@ ExecutionResult PluginManager::run_script_capability(const std::string& plugin_k
    return result;
 }

+void PluginManager::dispatch_lifecycle_event(LifecycleEvent evt, const LifecycleEventContext& ctx) {
+    for (const auto& cap : get_plugin_capabilities()) {
+        if (!cap || !cap->is_enabled()) continue;
+        try {
+            cap->on_lifecycle_event(evt, ctx);
+        } catch (const std::exception& ex) {
+            BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << ": plugin '" << cap->audit_plugin_key() << "/" << cap->name()
+                                       << "' on_lifecycle_event(" << lifecycle_event_to_string(evt) << ") threw: " << ex.what()
+                                       << " [ctx name='" << ctx.name << "', code=" << lifecycle_evt_code_to_string(ctx.code)
+                                       << ", msg='" << ctx.msg << "']";
+        } catch (...) {
+            BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << ": plugin '" << cap->audit_plugin_key() << "/" << cap->name()
+                                       << "' on_lifecycle_event(" << lifecycle_event_to_string(evt)
+                                       << ") threw a non-standard exception"
+                                       << " [ctx name='" << ctx.name << "', code=" << lifecycle_evt_code_to_string(ctx.code)
+                                       << ", msg='" << ctx.msg << "']";
+        }
+    }
+}
+
 } // namespace Slic3r
@@ -8,6 +8,7 @@
 #include <condition_variable>
 #include <functional>
 #include <libslic3r/Config.hpp>
+#include <libslic3r/LifecycleEvents.hpp>
 #include <map>
 #include <memory>
 #include <mutex>
@@ -20,7 +21,6 @@
 #include <pybind11/embed.h>

 #include "CloudPluginService.hpp"
-#include "PluginFsUtils.hpp"
 #include "PluginDescriptor.hpp"
 #include "PluginLoader.hpp"
 #include "PluginConfig.hpp"
@@ -210,6 +210,8 @@ public:

    ExecutionResult run_script_capability(const std::string& plugin_key, const std::string& capability_name, std::string& error);

+    void dispatch_lifecycle_event(LifecycleEvent evt, const LifecycleEventContext& ctx);
+
 private:
    PluginManager()                                = default;
    PluginManager(const PluginManager&)            = delete;
@@ -132,6 +132,12 @@ public:
    {
        ORCA_PY_OVERRIDE_AUDITED([] {}, PYBIND11_OVERRIDE, void, Base, on_cancelled);
    }
+
+    void on_lifecycle_event(LifecycleEvent event, const LifecycleEventContext& ctx) override
+    {
+        ORCA_PY_OVERRIDE_AUDITED(
+            ::Slic3r::PluginAuditManager::AuditMode::Loading, [] {}, PYBIND11_OVERRIDE, void, Base, on_lifecycle_event, event, ctx);
+    }
 };

 class PyPluginInterfaceTrampoline : public PyPluginCommonTrampoline<PluginCapabilityInterface>
@@ -377,6 +377,62 @@ void bind_python_api(pybind11::module_& m)
        .value("FatalError", PluginResult::FatalError)
        .export_values();

+    py::enum_<LifecycleEvent>(m, "LifecycleEvent", "Application lifecycle moment passed to on_lifecycle_event")
+        .value("NewProject", LifecycleEvent::NewProject)
+        .value("ProjectOpened", LifecycleEvent::ProjectOpened)
+        .value("ProjectBeforeSave", LifecycleEvent::ProjectBeforeSave)
+        .value("ProjectAfterSave", LifecycleEvent::ProjectAfterSave)
+        .value("ProjectClosed", LifecycleEvent::ProjectClosed)
+        .value("ProjectDirtyChanged", LifecycleEvent::ProjectDirtyChanged)
+        .value("SliceStarted", LifecycleEvent::SliceStarted)
+        .value("SliceGeometryFinished", LifecycleEvent::SliceGeometryFinished)
+        .value("GCodeExportStarted", LifecycleEvent::GCodeExportStarted)
+        .value("GCodeExportFinished", LifecycleEvent::GCodeExportFinished)
+        .value("SlicingJobComplete", LifecycleEvent::SlicingJobComplete)
+        .value("ObjectAdded", LifecycleEvent::ObjectAdded)
+        .value("ObjectDeleted", LifecycleEvent::ObjectDeleted)
+        .value("ObjectTransformed", LifecycleEvent::ObjectTransformed)
+        .value("ObjectChanged", LifecycleEvent::ObjectChanged)
+        .value("ObjectRenamed", LifecycleEvent::ObjectRenamed)
+        .value("PlateCreated", LifecycleEvent::PlateCreated)
+        .value("PlateDeleted", LifecycleEvent::PlateDeleted)
+        .value("PlateSelected", LifecycleEvent::PlateSelected)
+        .value("PlateRenamed", LifecycleEvent::PlateRenamed)
+        .value("PresetSelected", LifecycleEvent::PresetSelected)
+        .value("PresetSaved", LifecycleEvent::PresetSaved)
+        .value("PrintStateChanged", LifecycleEvent::PrintStateChanged)
+        .value("DeviceOnlineChanged", LifecycleEvent::DeviceOnlineChanged)
+        .value("DeviceDiscovered", LifecycleEvent::DeviceDiscovered)
+        .value("DeviceSelected", LifecycleEvent::DeviceSelected)
+        .value("DeviceConnected", LifecycleEvent::DeviceConnected)
+        .value("DeviceDisconnected", LifecycleEvent::DeviceDisconnected)
+        .value("UploadStarted", LifecycleEvent::UploadStarted)
+        .value("UploadFinished", LifecycleEvent::UploadFinished)
+        .value("PrintJobStarted", LifecycleEvent::PrintJobStarted)
+        .value("PrintJobFinished", LifecycleEvent::PrintJobFinished)
+        .value("SendJobStarted", LifecycleEvent::SendJobStarted)
+        .value("SendJobFinished", LifecycleEvent::SendJobFinished)
+        .export_values();
+
+    py::enum_<LifecycleEvtCode>(m, "LifecycleEvtCode", "Outcome code accompanying a LifecycleEventContext")
+        .value("Ok", LifecycleEvtCode::Ok)
+        .value("Error", LifecycleEvtCode::Error)
+        .value("Warn", LifecycleEvtCode::Warn)
+        .export_values();
+
+    py::class_<LifecycleEventContext>(m, "LifecycleEventContext", "Payload accompanying a LifecycleEvent")
+        .def(py::init<>())
+        .def_readonly("name", &LifecycleEventContext::name)
+        .def_readonly("code", &LifecycleEventContext::code)
+        .def_readonly("msg", &LifecycleEventContext::msg)
+        .def_readonly("id", &LifecycleEventContext::id)
+        .def_readonly("previous_name", &LifecycleEventContext::previous_name)
+        .def_readonly("device_id", &LifecycleEventContext::device_id)
+        .def_readonly("job_id", &LifecycleEventContext::job_id)
+        .def_readonly("source", &LifecycleEventContext::source)
+        .def_readonly("index", &LifecycleEventContext::index)
+        .def_readonly("dirty", &LifecycleEventContext::dirty);
+
    py::class_<PluginContext>(m, "PluginContext", "Context shared with plugin entry points")
        .def(py::init<>())
        .def_readwrite("orca_version", &PluginContext::orca_version);
@@ -401,6 +457,9 @@ void bind_python_api(pybind11::module_& m)
        .def("get_type", &PluginCapabilityInterface::get_type)
        .def("on_load", &PluginCapabilityInterface::on_load)
        .def("on_unload", &PluginCapabilityInterface::on_unload)
+        .def("on_lifecycle_event", &PluginCapabilityInterface::on_lifecycle_event,
+             "Override to react to an application lifecycle moment (LifecycleEvent) and its\n"
+             "LifecycleEventContext payload. Available on every capability type.")
        .def("has_config_ui", &PluginCapabilityInterface::has_config_ui,
             "Override to return True to replace the host's default JSON editor with your own HTML\n"
             "UI, returned by get_config_ui(). Every capability is configurable and appears in the\n"
@@ -10,6 +10,8 @@
 #include <nlohmann/json.hpp>
 #include <pybind11/embed.h>

+#include <libslic3r/LifecycleEvents.hpp>
+
 namespace Slic3r {

 enum class PluginCapabilityType { PrinterConnection = 0, Pages, Analysis, Importer, Exporter, Visualization, Script, SlicingPipeline, Unknown };
@@ -167,6 +169,8 @@ public:
    virtual void on_unload() {}
    virtual void on_cancelled() {}

+    virtual void on_lifecycle_event(LifecycleEvent event, const LifecycleEventContext& ctx) { (void) event; (void) ctx; }
+
    // ── C++-only host state, never exposed to Python. Set by the loader at materialization. ──
    //
    // The capability owns its own identity and enable flag: they are read once under the GIL, live
@@ -7,8 +7,6 @@
 #include <slic3r/GUI/GUI_App.hpp>
 #include <slic3r/GUI/MainFrame.hpp>
 #include <slic3r/GUI/MsgDialog.hpp>
-#include <slic3r/GUI/Plater.hpp>
-#include <slic3r/GUI/PluginDockPanel.hpp>
 #include <slic3r/GUI/PluginProgressDialog.hpp>
 #include <slic3r/GUI/PluginWebDialog.hpp>
 #include <slic3r/GUI/NotificationManager.hpp>
@@ -22,7 +20,6 @@
 #include <wx/defs.h>
 #include <wx/window.h>

-#include <algorithm>
 #include <atomic>
 #include <cstdint>
 #include <future>
@@ -112,25 +109,6 @@ GUI::PluginWebDialog::SubmitHandler make_submit_adapter(py::object on_submit)
    };
 }

-// The plugin's on_close: fired only on a user/JS-initiated close (not forced teardown), while the
-// window is alive. Empty if the plugin passed None.
-std::function<void()> make_close_adapter(const CallablePtr& holder)
-{
-    if (!holder)
-        return nullptr;
-    return [holder]() {
-        PythonGILState gil;
-        if (!gil)
-            return;
-        try {
-            holder->fn();
-        } catch (py::error_already_set& e) {
-            BOOST_LOG_TRIVIAL(error) << "orca.host.ui on_close handler raised: " << e.what();
-            PyErr_Clear();
-        }
-    };
-}
-
 // --------------------------------------------------------------------------
 // Registry of live plugin UI resources. Keyed by an opaque id; tracks the
 // owning plugin so all of a plugin's UI can be torn down on unload.
@@ -372,7 +350,22 @@ py::object ui_create_window(const std::string& html, const std::string& title, i
        if (!UiRegistry::instance().is_open(new_id))
            return;

-        GUI::PluginWebDialog::CloseHandler on_close = make_close_adapter(close_holder);
+        // Plugin's on_close: fired only on a user/JS-initiated close (not forced
+        // teardown), while the dialog is alive. Empty if the plugin passed None.
+        GUI::PluginWebDialog::CloseHandler on_close;
+        if (close_holder) {
+            on_close = [close_holder]() {
+                PythonGILState gil;
+                if (!gil)
+                    return;
+                try {
+                    close_holder->fn();
+                } catch (py::error_already_set& e) {
+                    BOOST_LOG_TRIVIAL(error) << "orca.host.ui on_close handler raised: " << e.what();
+                    PyErr_Clear();
+                }
+            };
+        }
        // Registry cleanup: GIL-free, runs from the dialog destructor on every path.
        auto on_destroyed = [new_id]() { UiRegistry::instance().remove(new_id); };

@@ -394,69 +387,14 @@ py::object ui_create_window(const std::string& html, const std::string& title, i
    return py::cast(UiWindowHandle{new_id});
 }

-// --------------------------------------------------------------------------
-// orca.host.ui.create_dock_panel + UiDockPanel handle
-// --------------------------------------------------------------------------
-constexpr const char* DOCK_POSITIONS[] = {"left", "right", "bottom", "float"};
-
-struct UiDockPanelHandle
-{
-    int id{0};
-};
-
-py::object ui_create_dock_panel(const std::string& html, const std::string& title, int width, int height,
-                                py::object on_message, py::object on_close, const std::string& dock)
-{
-    if (std::find(std::begin(DOCK_POSITIONS), std::end(DOCK_POSITIONS), dock) == std::end(DOCK_POSITIONS))
-        throw std::invalid_argument("orca.host.ui.create_dock_panel dock must be \"left\", \"right\", \"bottom\" or \"float\"");
-
-    auto              msg_adapter  = make_message_adapter(std::move(on_message));
-    CallablePtr       close_holder = make_holder(std::move(on_close));
-    const std::string plugin_key   = PluginAuditManager::instance().current_plugin();
-    const int         w            = width > 0 ? width : 320;
-    const int         h            = height > 0 ? height : 480;
-
-    if (wxTheApp == nullptr)
-        throw std::runtime_error("OrcaSlicer application is not initialized");
-
-    // Deferred and pre-bound for the same reasons as create_window().
-    const int new_id = UiRegistry::instance().reserve_id();
-    UiRegistry::instance().bind(new_id, nullptr, plugin_key);
-
-    GUI::wxGetApp().CallAfter([new_id, plugin_key, html, title, dock, w, h,
-                               msg_adapter = std::move(msg_adapter),
-                               close_holder = std::move(close_holder)]() mutable {
-        if (!UiRegistry::instance().is_open(new_id))
-            return;
-
-        GUI::Plater* plater = GUI::wxGetApp().plater();
-        if (plater == nullptr || GUI::wxGetApp().is_closing()) {
-            UiRegistry::instance().remove(new_id);
-            return;
-        }
-
-        auto  on_destroyed = [new_id]() { UiRegistry::instance().remove(new_id); };
-        auto* panel = new GUI::PluginDockPanel(plater, html, std::move(msg_adapter), make_close_adapter(close_holder),
-                                               std::move(on_destroyed));
-        UiRegistry::instance().bind(new_id, panel, plugin_key);
-        plater->add_plugin_pane(panel, GUI::plugin_pane_name(plugin_key, title), wxString::FromUTF8(title), dock,
-                                wxSize(w, h), [panel]() { panel->fire_close(); });
-    });
-
-    return py::cast(UiDockPanelHandle{new_id});
-}
-
 void handle_post(int id, py::object data)
 {
    if (wxTheApp == nullptr)
        return;
    json j = py_to_json(data); // GIL held (binding body)
    GUI::wxGetApp().CallAfter([id, j = std::move(j)]() {
-        auto* window = UiRegistry::instance().get_as<wxWindow>(id);
-        if (auto* panel = dynamic_cast<GUI::PluginDockPanel*>(window))
-            panel->push_message(j);
-        else
-            GUI::PluginWebDialog::post_message(dynamic_cast<GUI::PluginWebDialog*>(window), j);
+        auto* d = UiRegistry::instance().get_as<GUI::PluginWebDialog>(id);
+        GUI::PluginWebDialog::post_message(d, j);
    });
 }

@@ -465,23 +403,8 @@ void handle_close(int id)
    if (wxTheApp == nullptr)
        return;
    GUI::wxGetApp().CallAfter([id]() {
-        auto* window = UiRegistry::instance().get_as<wxWindow>(id);
-        if (auto* panel = dynamic_cast<GUI::PluginDockPanel*>(window))
-            panel->request_close();
-        else
-            GUI::PluginWebDialog::request_close(dynamic_cast<GUI::PluginWebDialog*>(window));
-    });
-}
-
-void handle_show(int id, bool show)
-{
-    if (wxTheApp == nullptr)
-        return;
-    GUI::wxGetApp().CallAfter([id, show]() {
-        auto*        panel  = UiRegistry::instance().get_as<GUI::PluginDockPanel>(id);
-        GUI::Plater* plater = GUI::wxGetApp().plater();
-        if (panel != nullptr && plater != nullptr)
-            plater->show_plugin_pane(panel, show);
+        auto* d = UiRegistry::instance().get_as<GUI::PluginWebDialog>(id);
+        GUI::PluginWebDialog::request_close(d);
    });
 }

@@ -640,31 +563,6 @@ void PluginHostUi::RegisterBindings(pybind11::module_& host)
           "or WINDOW_MODAL. on_message(data) is called on the UI thread when the page posts; on_submit(data) "
           "is called when the page submits; offload heavy work to a thread and push results back with window.post().");

-    py::class_<UiDockPanelHandle>(ui, "UiDockPanel", "Handle to a dockable plugin HTML panel created by create_dock_panel().")
-        .def_property_readonly("id", [](const UiDockPanelHandle& h) { return h.id; })
-        .def(
-            "post", [](const UiDockPanelHandle& h, py::object data) { handle_post(h.id, std::move(data)); },
-            py::arg("data"), "Send a payload to the page (delivered to window.orca.onMessage handlers).")
-        .def(
-            "show", [](const UiDockPanelHandle& h) { handle_show(h.id, true); }, "Show the panel again after hide().")
-        .def(
-            "hide", [](const UiDockPanelHandle& h) { handle_show(h.id, false); }, "Hide the panel without closing it.")
-        .def(
-            "close", [](const UiDockPanelHandle& h) { handle_close(h.id); }, "Close the panel (fires on_close).")
-        .def(
-            "is_open", [](const UiDockPanelHandle& h) { return UiRegistry::instance().is_open(h.id); },
-            "Return True until the panel is closed; a hidden panel is still open.");
-
-    ui.def("create_dock_panel", &ui_create_dock_panel, py::arg("html"), py::arg("title") = "OrcaSlicer",
-           py::arg("width") = 320, py::arg("height") = 480, py::arg("on_message") = py::none(),
-           py::arg("on_close") = py::none(), py::arg("dock") = "right",
-           "Open an HTML panel docked beside the 3D view and return a UiDockPanel. dock is \"left\", \"right\", "
-           "\"bottom\" or \"float\", and width/height are in DIPs; the user can move and resize the panel, and a panel "
-           "opened again comes back where the window layout was last saved. The panel belongs to the Prepare and "
-           "Preview tabs. on_message(data) is called on the UI thread when the page posts; window.orca.close() "
-           "or the panel's close button closes it and calls on_close(). A post() made before the page has "
-           "loaded can be dropped, so have the page request its first data.");
-
    py::class_<UiProgressHandle>(ui, "ProgressDialog", "Handle to a native progress dialog.")
        .def(py::init(&new_progress_dialog), py::arg("title"), py::arg("message"), py::arg("maximum") = 100,
             py::arg("style") = wxPD_APP_MODAL | wxPD_AUTO_HIDE)
@@ -734,8 +632,6 @@ void PluginHostUi::close_windows_for_plugin(const std::string& plugin_key)
        for (auto* window : UiRegistry::instance().take_for_plugin(plugin_key)) {
            if (auto* dialog = dynamic_cast<GUI::PluginWebDialog*>(window))
                GUI::PluginWebDialog::destroy_for_plugin(dialog);
-            else if (auto* panel = dynamic_cast<GUI::PluginDockPanel*>(window))
-                panel->destroy_for_plugin();
            else if (window != nullptr)
                window->Destroy();
        }
@@ -1,12 +1,17 @@
 #include "PluginPages.hpp"

 #include "libslic3r/AppConfig.hpp"
+#include "slic3r/GUI/GUI.hpp"
 #include "slic3r/GUI/Notebook.hpp"
 #include "slic3r/GUI/GUI_App.hpp"
 #include "slic3r/GUI/Widgets/Button.hpp"
+#include "slic3r/GUI/Widgets/WebView.hpp"
+#include "slic3r/GUI/Widgets/WebViewHostDialog.hpp"
 #include "slic3r/GUI/wxExtensions.hpp"
 #include "slic3r/plugin/PluginManager.hpp"

+#include <libslic3r/Utils.hpp>
+
 #include <algorithm>

 #include <boost/filesystem/path.hpp>
@@ -61,11 +66,27 @@ constexpr char PLUGIN_PAGE_BRIDGE_JS[] = R"JS(
 } // namespace

 PluginPage::PluginPage(wxWindow* parent, std::shared_ptr<PagesPluginCapability> capability)
-    : GUI::PluginWebPanel(parent, PLUGIN_PAGE_BRIDGE_JS)
+    : wxPanel(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize)
    , m_cap(std::move(capability))
    , m_lifetime(std::make_shared<std::atomic<PluginPage*>>(this))
 {
-    browser()->Bind(wxEVT_WEBVIEW_NEWWINDOW, &PluginPage::on_new_window, this);
+    auto* topsizer = new wxBoxSizer(wxVERTICAL);
+    SetSizer(topsizer);
+
+    m_browser = WebView::CreateWebView(this, bootstrap_url());
+    if (m_browser == nullptr) {
+        wxLogError("Could not initialize plugin page web view");
+        return;
+    }
+
+    topsizer->Add(m_browser, wxSizerFlags().Expand().Proportion(1));
+    m_browser->Bind(wxEVT_WEBVIEW_LOADED, &PluginPage::on_bootstrap_event, this);
+    m_browser->Bind(wxEVT_WEBVIEW_ERROR, &PluginPage::on_bootstrap_event, this);
+    m_browser->Bind(wxEVT_WEBVIEW_NEWWINDOW, &PluginPage::on_new_window, this);
+    m_browser->Bind(wxEVT_WEBVIEW_SCRIPT_MESSAGE_RECEIVED, &PluginPage::on_script_message, this);
+    m_browser->AddUserScript(wxString::FromUTF8(GUI::WebViewHostDialog::theme_user_script()));
+    m_browser->AddUserScript(wxString::FromUTF8(GUI::WebViewHostDialog::plugin_defaults_user_script()));
+    m_browser->AddUserScript(PLUGIN_PAGE_BRIDGE_JS);

    const std::shared_ptr<std::atomic<PluginPage*>> lifetime = m_lifetime;
    m_cap->set_message_sender([lifetime](const std::string& message) {
@@ -96,54 +117,89 @@ void PluginPage::detach_capability()
    m_cap.reset();
 }

-std::optional<std::string> PluginPage::page_html()
+wxString PluginPage::web_base_url() const
 {
-    if (m_cap == nullptr)
-        return std::nullopt;
+    const auto path = (boost::filesystem::path(resources_dir()) / "web").make_preferred().string();
+    return wxString("file://") + GUI::from_u8(path) + "/";
+}

+wxString PluginPage::bootstrap_url() const
+{
+    const auto path = (boost::filesystem::path(resources_dir()) / "web/dialog/PluginWebDialog/blank.html").make_preferred().string();
+    return wxString("file://") + GUI::from_u8(path);
+}
+
+void PluginPage::on_bootstrap_event(wxWebViewEvent& event)
+{
+    load_plugin_content();
+    event.Skip();
+}
+
+void PluginPage::load_plugin_content()
+{
+    if (m_content_loaded || m_browser == nullptr || m_cap == nullptr)
+        return;
+
+    m_content_loaded = true;
    try {
-        return m_cap->get_ui();
+        m_browser->SetPage(wxString::FromUTF8(m_cap->get_ui()), web_base_url());
    } catch (const std::exception& error) {
        BOOST_LOG_TRIVIAL(error) << "Failed to load plugin page '" << m_cap->name() << "': " << error.what();
+        detach_capability();
    } catch (...) {
        BOOST_LOG_TRIVIAL(error) << "Failed to load plugin page '" << m_cap->name() << "'";
+        detach_capability();
    }
-    detach_capability();
-    return std::nullopt;
 }

 void PluginPage::on_new_window(wxWebViewEvent& event)
 {
    const wxString url = event.GetURL();
-    if (!url.empty())
-        browser()->LoadURL(url);
+    if (!url.empty() && m_browser != nullptr)
+        m_browser->LoadURL(url);
    event.Veto();
 }

-bool PluginPage::on_page_message(const std::string& kind, const nlohmann::json& data)
+void PluginPage::on_script_message(wxWebViewEvent& event)
 {
-    if (kind != "message")
-        return false;
    if (!m_cap)
-        return true;
+        return;

+    const wxString payload = event.GetString();
+    nlohmann::json root    = nlohmann::json::parse(payload.utf8_string(), nullptr, false);
+    if (root.is_discarded() || root.value("channel", std::string()) != "orca" ||
+        root.value("kind", std::string()) != "message")
+        return;
+
+    const auto data = root.find("data");
    try {
-        m_cap->on_message(data.dump(-1, ' ', false, nlohmann::json::error_handler_t::replace));
+        m_cap->on_message(data == root.end()
+                              ? "null"
+                              : data->dump(-1, ' ', false, nlohmann::json::error_handler_t::replace));
    } catch (const std::exception& error) {
        BOOST_LOG_TRIVIAL(error) << "Plugin page message handler failed for '" << m_cap->name() << "': " << error.what();
    } catch (...) {
        BOOST_LOG_TRIVIAL(error) << "Plugin page message handler failed for '" << m_cap->name() << "'";
    }
-    return true;
 }

 void PluginPage::push_message(const std::string& message)
 {
+    if (m_browser == nullptr)
+        return;
+
    // PagesPluginCapability::post_message() already dumps JSON, so accept it as-is; only a
    // non-JSON payload needs wrapping as a string literal.
-    post_to_page(nlohmann::json::accept(message)
-                     ? message
-                     : nlohmann::json(message).dump(-1, ' ', false, nlohmann::json::error_handler_t::replace));
+    const std::string payload = nlohmann::json::accept(message)
+                                    ? message
+                                    : nlohmann::json(message).dump(-1, ' ', false, nlohmann::json::error_handler_t::replace);
+
+    WebView::RunScript(m_browser, wxString::Format(
+        "(function dispatch(payload, attempts) {\n"
+        "  if (typeof window.__orcaDispatch === 'function') { window.__orcaDispatch(payload); return; }\n"
+        "  if (attempts < 100) window.setTimeout(function() { dispatch(payload, attempts + 1); }, 25);\n"
+        "})({data: %s}, 0);",
+        wxString::FromUTF8(payload)));
 }

 PluginPages::~PluginPages()
@@ -212,6 +268,10 @@ bool PluginPages::create_page(const PluginCapabilityId& id)
    }

    auto* page = new PluginPage(m_parent, std::move(capability));
+    if (!page->is_valid()) {
+        page->Destroy();
+        return false;
+    }

    if (!icon.empty()) {
        try {
@@ -1,6 +1,5 @@
 #pragma once

-#include <slic3r/GUI/PluginWebPanel.hpp>
 #include <slic3r/plugin/PythonPluginInterface.hpp>
 #include <slic3r/plugin/pluginTypes/pages/PagesPluginCapability.hpp>

@@ -12,13 +11,14 @@
 #include <vector>

 #include <wx/bitmap.h>
+#include <wx/panel.h>
 #include <wx/webview.h>

 class Notebook;

 namespace Slic3r {

-class PluginPage : public GUI::PluginWebPanel
+class PluginPage : public wxPanel
 {
 public:
    PluginPage(wxWindow* parent, std::shared_ptr<PagesPluginCapability> capability);
@@ -26,20 +26,24 @@ public:

    PluginPage() = delete;

+    bool is_valid() const { return m_browser != nullptr && m_cap != nullptr; }
    void detach_capability();
+    void on_bootstrap_event(wxWebViewEvent& event);
+    void on_new_window(wxWebViewEvent& event);
+    void on_script_message(wxWebViewEvent& event);
    void push_message(const std::string& message);
    void set_icon(const wxBitmap& icon) { m_icon = icon; }
    const wxBitmap& icon() const { return m_icon; }

-protected:
-    std::optional<std::string> page_html() override;
-    bool on_page_message(const std::string& kind, const nlohmann::json& data) override;
-
 private:
-    void on_new_window(wxWebViewEvent& event);
+    void load_plugin_content();
+    wxString bootstrap_url() const;
+    wxString web_base_url() const;

+    wxWebView* m_browser{nullptr};
    std::shared_ptr<PagesPluginCapability> m_cap;
    std::shared_ptr<std::atomic<PluginPage*>> m_lifetime;
+    bool m_content_loaded{false};
    wxBitmap m_icon;
 };

@@ -3,12 +3,8 @@
 #include <libslic3r/Model.hpp>
 #include <libslic3r/PresetBundle.hpp>
 #include <libslic3r/TriangleMesh.hpp>
-#include <slic3r/GUI/PluginDockPanel.hpp>
-#include <slic3r/GUI/Widgets/AuiPaneLayout.hpp>
-#include <slic3r/GUI/Widgets/PluginWebContent.hpp>
 #include <slic3r/plugin/PythonPluginBridge.hpp>

-#include "plugin_test_utils.hpp"
 #include "python_test_support.hpp"

 #include <pybind11/embed.h>
@@ -145,8 +141,6 @@ TEST_CASE("Plugin host API exposes the UI module and guards it before Orca app i
    CHECK(ui.attr("WINDOW_MODELESS").cast<long>() == 0);
    CHECK(ui.attr("WINDOW_MODAL").cast<long>() == 1);
    CHECK(has_attr(ui, "UiWindow"));
-    CHECK(has_attr(ui, "create_dock_panel"));
-    CHECK(has_attr(ui, "UiDockPanel"));

    // With no wx application the UI calls marshal to a main thread that does not
    // exist here; they must fail cleanly with a clear error, not crash.
@@ -157,75 +151,6 @@ TEST_CASE("Plugin host API exposes the UI module and guards it before Orca app i
        CHECK(error.matches(PyExc_RuntimeError));
        CHECK(std::string(error.what()).find("OrcaSlicer application is not initialized") != std::string::npos);
    }
-
-    try {
-        ui.attr("create_dock_panel")("<p>panel</p>");
-        FAIL("orca.host.ui.create_dock_panel unexpectedly succeeded without a wx application");
-    } catch (const py::error_already_set& error) {
-        CHECK(error.matches(PyExc_RuntimeError));
-        CHECK(std::string(error.what()).find("OrcaSlicer application is not initialized") != std::string::npos);
-    }
-
-    // Positional arguments follow create_window(): width and height come straight after the title.
-    try {
-        ui.attr("create_dock_panel")("<p>panel</p>", "Panel", 400, 300);
-        FAIL("orca.host.ui.create_dock_panel unexpectedly succeeded without a wx application");
-    } catch (const py::error_already_set& error) {
-        CHECK(error.matches(PyExc_RuntimeError));
-    }
-
-    // An unknown dock position is rejected before the application is needed.
-    try {
-        ui.attr("create_dock_panel")("<p>panel</p>", py::arg("dock") = "top");
-        FAIL("orca.host.ui.create_dock_panel accepted an unknown dock position");
-    } catch (const py::error_already_set& error) {
-        CHECK(error.matches(PyExc_ValueError));
-    }
-}
-
-TEST_CASE("Plugin pane names identify the plugin and title without layout delimiters", "[PluginHost]")
-{
-    using Slic3r::GUI::plugin_pane_name;
-
-    CHECK(plugin_pane_name("dock_demo", "Scene") == "plugin:dock_demo:Scene");
-    CHECK(plugin_pane_name("key", "a|b;c=d\\e").find_first_of("|;=\\") == std::string::npos);
-}
-
-TEST_CASE("A pane's saved layout entry is found by pane name", "[PluginHost]")
-{
-    using Slic3r::GUI::aui_pane_layout_entry;
-
-    const std::string sidebar = "name=sidebar;caption=;state=2099196;dir=4;layer=0;row=0;pos=0;bestw=390;besth=900";
-    // The caption holds an escaped '|', which must not end the entry.
-    const std::string plugin  = "name=plugin:demo:Scene;caption=Scene \\| stats;state=2099198;dir=2;layer=0;row=1;pos=0;bestw=320;besth=480";
-    const std::string layout  = "layout3|" + sidebar + "|" + plugin + "|dock_size(4,0,0)=392|";
-
-    CHECK(aui_pane_layout_entry(layout, "plugin:demo:Scene") == plugin);
-    CHECK(aui_pane_layout_entry(layout, "sidebar") == sidebar);
-    CHECK(aui_pane_layout_entry(layout, "plugin:demo").empty());
-    CHECK(aui_pane_layout_entry("", "plugin:demo:Scene").empty());
-}
-
-TEST_CASE("A reloaded plugin page is recognised by its base URL, fragment aside", "[PluginHost]")
-{
-    using namespace Slic3r::GUI::plugin_web;
-
-    // A resources path holding a space, which the web view reports escaped.
-    const Slic3r::ScopedResourcesDir resources("web content check");
-
-    // What a plugin page reports after the host swapped it in, and after the page moved to an
-    // anchor within it and the user reloaded.
-    CHECK(is_content_url(content_base_url()));
-    CHECK(is_content_url(content_base_url() + "#tab2"));
-    wxString escaped = content_base_url();
-    escaped.Replace(" ", "%20");
-    REQUIRE(escaped != content_base_url());
-    CHECK(is_content_url(escaped));
-    CHECK(is_content_url(escaped + "#tab2"));
-    // A page the plugin linked to keeps its own URL and must be left alone.
-    CHECK_FALSE(is_content_url(content_base_url() + "guide.html"));
-    CHECK_FALSE(is_content_url("https://example.com/"));
-    CHECK_FALSE(is_content_url(""));
 }

 TEST_CASE("Plugin host API exposes model geometry and structure to Python", "[PluginHost][Python]")
Author	SHA1	Message	Date
Ian Chua	8fd93907fd	Merge branch 'main' into feat/plugin-lifecycle-evts	2026-09-18 21:35:09 +08:00
Ian Chua	080f27f602	fix: windows unsubscribed loaded plugin not allowed (#15751 ) # Description <!-- > Please provide a summary of the changes made in this PR. Include details such as: > * What issue does this PR address or fix? > * What new features or enhancements does this PR introduce? > * Are there any breaking changes or dependencies that need to be considered? --> On windows, after installing and loading a plugin, if you try to unsubscribe from a loaded plugin, and on refresh, it will be an orphaned plugin. # Screenshots/Recordings/Graphs <!-- > Please attach relevant screenshots to showcase the UI changes. > Please attach images that can help explain the changes. --> On unsubscribing from a loaded cloud plugin <img width="1418" height="862" alt="image" src="https://github.com/user-attachments/assets/9ba8353c-1645-4b21-86ff-2ed235f4d259" /> On plugin refresh <img width="1418" height="862" alt="image" src="https://github.com/user-attachments/assets/fd58c144-7970-4448-ba3b-e72e52980467" /> ## Tests <!-- > Please describe the tests that you have conducted to verify the changes made in this PR. --> <!-- > A guide for users on how to download the artifacts from this PR. --> [How to Download Pull Requests Artifacts for Testing](https://www.orcaslicer.com/wiki/how_to_download_pr_artifacts)	2026-09-18 21:32:57 +08:00
Ian Chua	23c77f15cf	feat: add CI to generate OPC for OTA workflow (#15624 ) # Description Adds the CI half of the profile OTA pipeline: a push-triggered workflow that rebuilds a vendor's binary preset cache (`<vendor>.opc`) whenever its profile changes on `main` / `release/`, and publishes it as a versioned release asset for OrcaCloud's OTA Manager to pick up. ### `.github/workflows/post_merge_profiles.yml` (new) Push-triggered counterpart to `check_profiles.yml` (which only gates PRs): - Diffs the push to find which vendors under `resources/profiles/*` changed. - Reads the Orca version from `version.inc` and each vendor's 4-part `version` from `resources/profiles/<vendor>.json` (fails the run if it isn't `A.B.C.D`). - Downloads the prebuilt `generate_system_cache` from this repo's `nightly-builds` release and builds one `<vendor>.opc` per changed vendor. - Packages each as `<orca_ver>_<vendor>_<profile_version>_<UTCyyyymmddHHMM>.zip` (zip root `<vendor>.opc`) — the asset-name contract OrcaCloud's release scanner expects. - Uploads them to a per-Orca-version release on the profiles repo via a scoped GitHub App token. It stops there: no changelog, no R2, no OTA webhook — a maintainer still publishes from the OTA Manager. Job is guarded to `OrcaSlicer/OrcaSlicer`; workflow permissions are `contents: read` (the cross-repo write uses the App token only). ### `.github/workflows/build_orca.yml` Two steps on the Linux leg: upload `generate_system_cache` as a CI artifact, and (on `main`) deploy it to the `nightly-builds` release as `generate_system_cache_Linux_Ubuntu2404_nightly` so the workflow above has a tool to download. `.opc` is 64-bit little-endian and platform-independent, so only the Linux binary is shipped. ### `src/dev-utils/generate_system_cache.cpp` New `-v` / `--vendor` option to generate the cache for a single vendor (plus the always-loaded Orca filament library) instead of all vendors, and an error if the named vendor produced no `.opc` (catches typos). Reuses `PresetBundle::set_vendor_to_validate()` from #14217. ## Operational prerequisites - Repo secrets `PROFILES_APP_ID` / `PROFILES_APP_PRIVATE_KEY` for a GitHub App with `contents: write` on the target profiles repo. - `env.PROFILES_OWNER` / `env.PROFILES_REPO` in `post_merge_profiles.yml` must point at the production profiles repo OrcaCloud reads. - `generate_system_cache_Linux_Ubuntu2404_nightly` only appears after the first post-merge nightly `build_orca` run; a profile-only push before then fails at the download step. ## Screenshots/Recordings/Graphs n/a — CI only. ## Tests Exercised end-to-end in a staging environment: per-vendor `.opc` zips published in the expected `<orca_ver>_<vendor>_<profile_version>_<timestamp>.zip` layout, and `generate_system_cache -v <vendor>` confirmed to emit only that vendor's `.opc`. [How to Download Pull Requests Artifacts for Testing](https://www.orcaslicer.com/wiki/how_to_download_pr_artifacts)	2026-09-18 18:53:26 +08:00
Ian Chua	00f78c18cf	Merge branch 'main' into fix/windows-unsub-plugin	2026-09-18 18:51:50 +08:00
SoftFever	2dd3ef7cff	fix build errors on mac	2026-09-18 17:24:47 +08:00
peachismomo	2bfab589ee	fix: windows unsubsribe loaded plugin not allowed	2026-09-18 16:07:25 +08:00
Ian Chua	4a72a3bba2	Merge branch 'main' into feat/ota-opc-ci	2026-09-18 14:56:00 +08:00
Ian Chua	173706750d	Merge branch 'main' into feat/ota-opc-ci	2026-09-15 15:19:43 +08:00
Ian Chua	ffb2946b20	feat: compare with environment variable FOLDER_MERGERS for verified folders	2026-09-10 20:09:37 +08:00
Ian Chua	e89a05b1e4	fix: repo name	2026-09-10 16:38:03 +08:00
Ian Chua	02a8011b97	feat: add CI to generate OPC for OTA workflow	2026-09-10 16:27:23 +08:00
SoftFever	8056b32450	Merge branch 'main' into feat/plugin-lifecycle-evts	2026-08-26 14:43:41 +08:00
Ian Chua	fabd08af1e	update GCodeExport to use model id for ctx.name	2026-08-25 15:59:17 +08:00
Ian Chua	33a8265a11	fix: slicer regression test	2026-08-25 15:37:15 +08:00
Ian Chua	d96682a798	Merge branch 'main' into feat/plugin-lifecycle-evts	2026-08-25 13:50:00 +08:00
Ian Chua	64d04a75f3	feat: additional events	2026-08-24 11:36:37 +08:00
Ian Chua	bf22ef2a82	Merge branch 'main' into feat/plugin-lifecycle-evts	2026-08-20 12:21:50 +08:00
Ian Chua	dfd3444ae7	feat: initial draft of lifecycle events API for plugins	2026-08-19 19:20:31 +08:00