WebEngine Qt Quick Custom Touch Handle Example▲
WebEngine Qt Quick Touch Handle Example demonstrates how to use custom touch handles when a touch selection event happens. It shows the minimum amount of code needed to use custom touch handle delegates, and can be used as a basis for further experimentation.
Custom Touch Handle▲
In main.qml we create the custom touch handle delegate.
property int itemAction: WebEngineView.Back
text: webEngineView.action(itemAction).text
enabled: webEngineView.action(itemAction).enabled
onClicked: webEngineView.action(itemAction).trigger()
icon.name: webEngineView.action(itemAction).iconName
display: AbstractButton.TextUnderIcon
}
ToolButton {
property int itemAction: WebEngineView.Forward
text: webEngineView.action(itemAction).text
enabled: webEngineView.action(itemAction).enabled
onClicked: webEngineView.action(itemAction).trigger()
icon.name: webEngineView.action(itemAction).iconName
display: AbstractButton.TextUnderIcon
}
ToolButton {
property int itemAction: webEngineView.loading ? WebEngineView.Stop : WebEngineView.Reload
text: webEngineView.action(itemAction).text
enabled: webEngineView.action(itemAction).enabled
onClicked: webEngineView.action(itemAction).trigger()
icon.name: webEngineView.action(itemAction).iconName
display: AbstractButton.TextUnderIcon
}
TextField {
Layout.fillWidth: true
text: webEngineView.url
selectByMouse: true
onEditingFinished: webEngineView.url = text
}
Label { text: 'Handle: ' }
ComboBox {
model: [ 'Default', 'Circle', 'Square' ]
onCurrentValueChanged: {
if (currentValue == 'Circle')
webEngineView.touchHandleDelegate = circleTouchHandle
else if (currentValue == 'Square')
webEngineView.touchHandleDelegate = rectTouchHandle
else
webEngineView.touchHandleDelegate = null
}
Component.onCompleted: currentIndex = indexOfValue('Square')
}
}
}QML Code▲
In main.qml we create the top level window filled by a WebEngineView item loading the Qt Homepage. To display custom touch handles, a QML item should be delegated to WebEngineView::touchHandleDelegate.
The touch handle's position, opacity, and visibility is automatically updated.
If no delegate is provided, Chromium's default touch handles will appear.
Requirements▲
The example requires a working internet connection to render the Qt Homepage and a touch-enabled input device to trigger touch events. An optional system proxy should be picked up automatically.