QtWebEngine

@emircanacardev said in QtWebEngine and JS Integration: WebEngineScriptCollection is not support the qt 5.x i think. Am i right. Qt 5.15 didn't have WebEngineScriptCollection, but it still has a list of user scripts: https://doc.qt.io/qt-5/qml-qtwebengine-webengineview.html#userScripts-prop // script.js document.body.style.background = "#00aaaa" // *.qml in Qt 5.15 WebEngineView { id: webView anchors.fill: parent url: "chrome://gpu" WebEngineScript { id: script sourceUrl: Qt.resolvedUrl("scripts.js") } Component.onCompleted: webView.userScripts.push(script) } // *.qml in Qt 6.7 WebEngineView { id: webView anchors.fill: parent url: "chrome://gpu" Component.onCompleted: { let script = WebEngine.script() script.sourceUrl = Qt.resolvedUrl("scripts.js") webView.userScripts.insert(script) } }

when I resize the qwebengineview,the errors came out.I guess maybe it was caused by the chorum ui threads. cause When I resized the qwebengineview very quickly then the program crashed.heres the detail information. by the way.are there any ways that could resize the qwebengineview normally? code_text [opengl\qopenglframebufferobject.cpp line 570] OpenGL Error: 1281 QOpenGLFramebufferObject: Framebuffer incomplete attachment. QOpenGLFramebufferObject: Framebuffer incomplete attachment. QOpenGLFramebufferObject: Framebuffer incomplete attachment. QOpenGLFramebufferObject: Framebuffer incomplete attachment. QOpenGLFramebufferObject: Framebuffer incomplete, missing attachment. [opengl\qopenglframebufferobject.cpp line 802] OpenGL Error: 1281 [opengl\qopenglframebufferobject.cpp line 570] OpenGL Error: 1281 QOpenGLFramebufferObject: Framebuffer incomplete attachment. QOpenGLFramebufferObject: Framebuffer incomplete attachment. QOpenGLFramebufferObject: Framebuffer incomplete attachment. QOpenGLFramebufferObject: Framebuffer incomplete attachment. QOpenGLFramebufferObject: Framebuffer incomplete, missing attachment. [opengl\qopenglframebufferobject.cpp line 802] OpenGL Error: 1281 [7,484:6,388:0827/213650.756:ERROR:gles2_cmd_decoder.cc(5,678)] GLES2DecoderImpl::ResizeOffscreenFramebuffer failed to allocate storage due to excessive dimensions. [7,484:6,388:0827/213650.756:ERROR:gles2_cmd_decoder.cc(5,678)] GLES2DecoderImpl::ResizeOffscreenFramebuffer failed to allocate storage due to excessive dimensions. [7,484:6,388:0827/213650.756:ERROR:gles2_cmd_decoder.cc(5,827)] GLES2DecoderImpl: Context lost because ResizeOffscreenFramebuffer failed. [7,484:6,388:0827/213650.757:ERROR:gles2_cmd_decoder.cc(5,963)] Error: 5 for Command kResizeCHROMIUM [7,484:6,388:0827/213650.757:ERROR:in_process_command_buffer.cc(375)] MakeCurrent failed because context lost. [7,484:6,388:0827/213650.756:ERROR:gles2_cmd_decoder.cc(5,827)] GLES2DecoderImpl: Context lost because ResizeOffscreenFramebuffer failed. [7,484:6,388:0827/213650.757:ERROR:gles2_cmd_decoder.cc(5,963)] Error: 5 for Command kResizeCHROMIUM [7,484:6,388:0827/213650.757:ERROR:in_process_command_buffer.cc(375)] MakeCurrent failed because context lost. [7,484:6,388:0827/213650.766:ERROR:in_process_command_buffer.cc(375)] MakeCurrent failed because context lost. [7,484:6,388:0827/213650.766:ERROR:in_process_command_buffer.cc(375)] MakeCurrent failed because context lost. [7,484:6,388:0827/213650.852:ERROR:gles2_cmd_decoder.cc(5,678)] GLES2DecoderImpl::ResizeOffscreenFramebuffer failed to allocate storage due to excessive dimensions. [7,484:6,388:0827/213650.852:ERROR:gles2_cmd_decoder.cc(5,827)] GLES2DecoderImpl: Context lost because ResizeOffscreenFramebuffer failed. [7,484:6,388:0827/213650.852:ERROR:gles2_cmd_decoder.cc(5,678)] GLES2DecoderImpl::ResizeOffscreenFramebuffer failed to allocate storage due to excessive dimensions. [7,484:6,388:0827/213650.852:ERROR:gles2_cmd_decoder.cc(5,963)] Error: 5 for Command kResizeCHROMIUM [7,484:7,364:0827/213650.852:ERROR:program_binding.cc(257)] Error compiling shader: shader program: #define TexCoordPrecision highp attribute float a_index; attribute TexCoordPrecision vec4 a_position; uniform TexCoordPrecision vec2 quad[4]; uniform mat4 matrix; void main() { // Compute indices for uniform arrays. int vertex_index = int(a_index); // Compute the position. vec4 pos = vec4(quad[vertex_index], a_position.z, a_position.w); gl_Position = matrix * pos; } [7,484:6,388:0827/213650.852:ERROR:gles2_cmd_decoder.cc(5,827)] GLES2DecoderImpl: Context lost because ResizeOffscreenFramebuffer failed. [7,484:6,388:0827/213650.852:ERROR:gles2_cmd_decoder.cc(5,963)] Error: 5 for Command kResizeCHROMIUM [7,484:7,364:0827/213650.852:ERROR:program_binding.cc(257)] Error compiling shader: shader program: #define TexCoordPrecision highp attribute float a_index; attribute TexCoordPrecision vec4 a_position; uniform TexCoordPrecision vec2 quad[4]; uniform mat4 matrix; void main() { // Compute indices for uniform arrays. int vertex_index = int(a_index); // Compute the position. vec4 pos = vec4(quad[vertex_index], a_position.z, a_position.w); gl_Position = matrix * pos; } [7,484:7,364:0827/213650.852:FATAL:program_binding.h(453)] Check failed: IsContextLost(context_provider->ContextGL()). Backtrace: QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,2B3,345+820,181] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,2C5,644+894,676] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,2C5,6DC+894,828] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,1F7,046+49,366] GetHandleVerifier [0x55,67A,44E+20,479,374] GetHandleVerifier [0x55,67A,233+20,478,835] GetHandleVerifier [0x55,67D,7DD+20,492,573] GetHandleVerifier [0x55,674,E75+20,457,397] GetHandleVerifier [0x55,672,8B5+20,447,733] GetHandleVerifier [0x55,662,A4D+20,382,605] GetHandleVerifier [0x55,662,B49+20,382,857] GetHandleVerifier [0x55,662,3B7+20,380,919] GetHandleVerifier [0x55,63A,DDE+20,219,678] GetHandleVerifier [0x55,635,479+20,196,793] GetHandleVerifier [0x55,634,8E8+20,193,832] GetHandleVerifier [0x55,635,70A+20,197,450] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,814,773+1,925,219] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,814,7B9+1,925,289] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,81E,C44+1,967,412] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,825,AB4+1,995,684] QtWebEngineCore::WebEngineSettings::setWebContentsAdapter [0x51,521,165+3,173] TargetNtUnmapViewOfSection [0x53,F12,EB5+26,061,381] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,68D,3C0+322,736] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,68D,6B5+323,493] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,68D,B44+324,660] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,68F,606+331,510] QtWebEngineCore::WebEngineSettings::setWebContentsAdapter [0x51,521,165+3,173] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,20F,5C1+149,073] GetHandleVerifier [0x54,302,B4F+66,703] GetHandleVerifier [0x54,302,486+64,966] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,2CD,44B+926,939] GetHandleVerifier [0x54,303,31C+68,700] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,23C,4DB+333,163] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,23C,294+332,580] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,243,102+360,850] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,243,C0C+363,676] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,200,49C+87,340] BaseThreadInitThunk [0x75,957,D69+25] RtlInitializeExceptionChain [0x76,F2B,B9B+107] RtlClearBits [0x76,F2B,B1F+191] Task trace: Backtrace: GetHandleVerifier [0x55,636,56B+20,201,131] GetHandleVerifier [0x54,737,E49+4,478,857] GetHandleVerifier [0x55,547,CA7+19,224,039] GetHandleVerifier [0x57,B25,FEB+58,931,499] GetHandleVerifier [0x55,4F9,72B+18,903,147] IPC message handler context: 0x85F9598B [7,484:7,364:0827/213650.852:FATAL:program_binding.h(453)] Check failed: IsContextLost(context_provider->ContextGL()). Backtrace: QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,2B3,345+820,181] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,2C5,644+894,676] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,2C5,6DC+894,828] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,1F7,046+49,366] GetHandleVerifier [0x55,67A,44E+20,479,374] GetHandleVerifier [0x55,67A,233+20,478,835] GetHandleVerifier [0x55,67D,7DD+20,492,573] GetHandleVerifier [0x55,674,E75+20,457,397] GetHandleVerifier [0x55,672,8B5+20,447,733] GetHandleVerifier [0x55,662,A4D+20,382,605] GetHandleVerifier [0x55,662,B49+20,382,857] GetHandleVerifier [0x55,662,3B7+20,380,919] GetHandleVerifier [0x55,63A,DDE+20,219,678] GetHandleVerifier [0x55,635,479+20,196,793] GetHandleVerifier [0x55,634,8E8+20,193,832] GetHandleVerifier [0x55,635,70A+20,197,450] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,814,773+1,925,219] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,814,7B9+1,925,289] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,81E,C44+1,967,412] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,825,AB4+1,995,684] QtWebEngineCore::WebEngineSettings::setWebContentsAdapter [0x51,521,165+3,173] TargetNtUnmapViewOfSection [0x53,F12,EB5+26,061,381] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,68D,3C0+322,736] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,68D,6B5+323,493] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,68D,B44+324,660] QtWebEngineCore::JavaScriptDialogController::qt_static_metacall [0x51,68F,606+331,510] QtWebEngineCore::WebEngineSettings::setWebContentsAdapter [0x51,521,165+3,173] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,20F,5C1+149,073] GetHandleVerifier [0x54,302,B4F+66,703] GetHandleVerifier [0x54,302,486+64,966] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,2CD,44B+926,939] GetHandleVerifier [0x54,303,31C+68,700] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,23C,4DB+333,163] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,23C,294+332,580] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,243,102+360,850] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,243,C0C+363,676] QWebEngineUrlSchemeHandler::qt_static_metacall [0x54,200,49C+87,340] BaseThreadInitThunk [0x75,957,D69+25] RtlInitializeExceptionChain [0x76,F2B,B9B+107] RtlClearBits [0x76,F2B,B1F+191] Task trace: Backtrace: GetHandleVerifier [0x55,636,56B+20,201,131] GetHandleVerifier [0x54,737,E49+4,478,857] GetHandleVerifier [0x55,547,CA7+19,224,039] GetHandleVerifier [0x57,B25,FEB+58,931,499] GetHandleVerifier [0x55,4F9,72B+18,903,147] IPC message handler context: 0x85F9598B

and if I set the source file whit the setHtml() function. it is hard to get the real height and width if the source was made by the txt.

Do you have a solution for that problem? I need.

I dont get errors when i use gold linker but website’s dont load , i get blank screen.

hi！did you solve the problem, i met the same problem.

It's not related to Debug or Release. The error is caused by line endings. The parser expects unix instead of dos line endings.

Hi, You can build the latest Qt 5.15 for your project and if it works better. If so backport the changes.

Hi, You should move to PySide6. Support for OpenSSL 3 started with Qt 6. Even if the support is back-ported to 5.15, you would need to build PySide2 yourself with the corresponding version of Qt 5.

@CompSciDude I tried -no-webengine-jumbo-build when building Qt 6.7.2, still cannot build cause by out of memory (12 G RAM). Neither --webengine-jumbo-build=<number>

Found the problem, I'm replying if someone else got the same problem. I needed to put this line of code : os.environ["QTWEBENGINE_CHROMIUM_FLAGS"] = "--no-sandbox" And to use sys.argv when initializing the app : App = Qt.QApplication(sys.argv) The final code being the following : import PyQt5.QtWidgets as Qt from PyQt5 import QtCore import PyQt5.QtWebEngineWidgets as QtWeb import sys import os class WebView(Qt.QMainWindow): def __init__(self): super().__init__() self.setWindowTitle("Web View") self.setGeometry(100, 100, 800, 600) self.webview = QtWeb.QWebEngineView(self) self.setCentralWidget(self.webview) self.webview.load(QtCore.QUrl("https://www.google.com")) if __name__ == "__main__": os.environ["QTWEBENGINE_CHROMIUM_FLAGS"] = "--no-sandbox" App = Qt.QApplication(sys.argv) window = WebView() window.show() app.exec_() Hope it helps if someone gets the same issue !

If I keep the code posted above and if I modify my webBrowser function with this code void MyMainWindow::webBrowser() { // Creation Objects m_webViewer = new QWebEngineView(); // Initialisation QString urlPage = "http://factice_url/simple_page.html"; // Setting and Loading URL (HTTP Object used because subsequently need to apply headers) QWebEngineHttpRequest httpObjet; httpObjet.setUrl(urlPage); m_webViewer->load(httpObjet); // Connexions connect(m_webViewer,&QWebEngineView::loadStarted,this,&MyMainWindow::manageBeginLoading); connect(m_webViewer,&QWebEngineView::loadFinished,this,&MyMainWindow::manageEndLoading); } And if I add this function void MyMainWindow::manageBeginLoading() { // Set Central Frame setCentralWidget(m_webViewer); } Application works in mode Debug and in mode Release without problem. With this changes I move setCentralWidget(m_webViewer) into the function launched when signal loadStarted is emitted. But is this correct or should we deport the creation of the m_webViewer and the connections in the constructor..?

I have already solved this problem. The solution is: m_view->settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessRemoteUrls, true);