Utilities and Helper functions for Qt on the Web.
The API is declared in qtwebutils.h and implemented in qtwebutils.cpp. The API is provided in two flavours: as static functions in the qtwebutils namespace for use from C++, and as Q_INVOKABLE functions on QtWebUtils singleton for use from QML
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toggleFullscreen()
Toggles the browser in and out of fullscreen mode.
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enableTabCloseConfirmation(bool enable)
Eables "unsaved data" confirmation dialog on tab close.
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loadFileToFileSystem() / saveFileFromFileSystem()
Loads file from the local file system via file dialog; saves to the in-memory file system provided by Emscripten. See also QFileDialog::getOpenFileContents() in Qt.
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openBrowserWindow()
Opens a native browser window or tab.
The examples are located in the exampels/ directory and demonstrates how to integrate with the web platform, beyond what the default Qt build does.
Usage: build examples/testapp first, using Qt for WebAssembly. This application contains common code used by the examples. The app should be built in-source (i.e. not using shadow builds).
(in examples/testapp): /path/to/qt-wasm/bin/qt-cmake .
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background_loading
Shows how to load a Qt applicaiton in the background, without delaying page loading.
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javascript_interop
Shows how to make function calls between C++ and JavaScript, and how to transfer data from the JavaScript heap to the C++ heap.
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multiple_instances
Shows how to create multiple application instances from a single wasm module.
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multiple_windows_simple
Shows how to display multiple application windows on a single html document.
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multiple_windows
Shows how to add and reomove application windows on an html document.
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popup_window
Shows how to create new tabs or popup windows, and how to render to them from a single WebAssembly instance.