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  • QtWebEngine and JS Integration

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    JKSHJ
    @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 running the code of webengineview,came the errors

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    nicker playerN
    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
  • how to get the real width and hight of the web pages what have loaded?

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    nicker playerN
    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.
  • QML WebEngineView doesn't play YouTube video if the video hasn't 480p quality

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    E
    Do you have a solution for that problem? I need.
  • This topic is deleted!

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  • I got error when i use Webengine lib

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    E
    I dont get errors when i use gold linker but website’s dont load , i get blank screen.
  • Web Engine runs out of memory when loading a node.js server.

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    S
    hi!did you solve the problem, i met the same problem.
  • Build from source errors. QTWebengine (chromium)

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    M
    It's not related to Debug or Release. The error is caused by line endings. The parser expects unix instead of dos line endings.
  • Terminating renderer for bad IPC message, reason 123

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    SGaistS
    Hi, You can build the latest Qt 5.15 for your project and if it works better. If so backport the changes.
  • Solving Error: TLS initialization failed on PySide2

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    SGaistS
    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.
  • Compiling QtWebEngine fails because out of memory

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    ytexasY
    @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>
  • Linux gives error in QtWebEngineProcess

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  • No content on macOS M

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  • QWebEngineView not showing on Linux Mint

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    I
    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 !
  • QWebEngineView - Application Not Responding

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    Juan DevJ
    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..?
  • How can I persist cookies from QWebEngineCookieStore to QNetworkCookieJar?

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  • Persist DevTools preferences between restarts

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  • "ERR_NETWORK_ACCESS_DENIED" appears when loading local HTML with QWebEngineView

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    B
    I have already solved this problem. The solution is: m_view->settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessRemoteUrls, true);
  • How to build only qtwebengine on Qt 6.7 with with proprietary codecs enabled?

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  • QML: WebEngineView can't be scrolled in ScrollView (Flickable too)

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