Files
OrcaSlicer/src/slic3r/GUI/WebMediaController.cpp
T

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2.7 KiB
C++

#include "WebMediaController.hpp"
#include <wx/webview.h>
namespace Slic3r { namespace GUI {
WebMediaController::WebMediaController(wxWebView* webview) : m_webview(webview)
{
if (!m_webview)
return;
m_webview->SetBackgroundColour(*wxBLACK);
m_webview->SetPage("<html><head><style>html,body{margin:0;height:100%;background:#000;}</style></head><body></body></html>", "");
}
void WebMediaController::Load(wxURI url)
{
m_url = url.BuildURI().ToStdString();
}
void WebMediaController::set_mode(CameraStreamMode mode)
{
m_stream_mode = mode;
}
void WebMediaController::Play()
{
if (!m_webview)
return;
wxString url = wxString::FromUTF8(m_url);
wxString html = "<html><head><style>"
"html,body{margin:0;height:100%;background:#000;overflow:hidden;}"
"img{width:100%;height:100%;object-fit:contain;display:block;}"
"</style></head><body><img id=\"camera-frame\"";
if (m_stream_mode == CameraStreamMode::http_snapshot) {
html += " data-camera-url=\"" + url +
"\"><script>"
"const cameraFrame=document.getElementById('camera-frame');"
"const cameraUrl=cameraFrame.dataset.cameraUrl;"
"let cameraFrameLoading=false;"
"function refreshCameraFrame(){"
"if(cameraFrameLoading)return;"
"cameraFrameLoading=true;"
"const nextFrame=new Image();"
"nextFrame.onload=function(){cameraFrame.src=nextFrame.src;cameraFrameLoading=false;};"
"nextFrame.onerror=function(){cameraFrameLoading=false;};"
"nextFrame.src=cameraUrl+(cameraUrl.indexOf('?')>=0?'&':'?')+'_orca_frame='+Date.now();"
"}"
"let cameraRefreshInterval=null;"
"function stopCameraRefresh(){"
"if(cameraRefreshInterval!==null){"
"clearInterval(cameraRefreshInterval);"
"cameraRefreshInterval=null;"
"}"
"}"
"refreshCameraFrame();"
"cameraRefreshInterval = setInterval(refreshCameraFrame,200);"
"</script></body></html>";
m_webview->SetPage(html, url);
} else {
// Load MJPEG streams as the top-level document. Some embedded WebView
// backends buffer a multipart stream when it is used as an <img> resource,
// which introduces noticeable live-view latency.
m_webview->LoadURL(url);
}
}
void WebMediaController::Stop()
{
if (m_webview) {
m_webview->RunScript("if(typeof stopCameraRefresh==='function') stopCameraRefresh();");
m_webview->Stop();
}
m_url.clear();
}
}} // namespace Slic3r::GUI