TextInputWithHandles.qml 6.92 KiB
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import QtQuick 2.2
import QtQuick.Controls.Private 1.0
TextInput {
    id: input
    property Item control
    property alias cursorHandle: cursorHandle.delegate
    property alias selectionHandle: selectionHandle.delegate
    property bool blockRecursion: false
    property bool hasSelection: selectionStart !== selectionEnd
    readonly property int selectionPosition: selectionStart !== cursorPosition ? selectionStart : selectionEnd
    readonly property alias containsMouse: mouseArea.containsMouse
    property alias editMenu: editMenu
    cursorDelegate: __style && __style.__cursorDelegate ? __style.__cursorDelegate : null
    selectByMouse: control.selectByMouse && (!Settings.isMobile || !cursorHandle.delegate || !selectionHandle.delegate)
    // force re-evaluation when selection moves:
    // - cursorRectangle changes => content scrolled
    // - contentWidth changes => text layout changed
    property rect selectionRectangle: cursorRectangle.x && contentWidth ? positionToRectangle(selectionPosition)
                                                                        : positionToRectangle(selectionPosition)
    onSelectionStartChanged: syncHandlesWithSelection()
    onCursorPositionChanged: syncHandlesWithSelection()
    function syncHandlesWithSelection()
        if (!blockRecursion && selectionHandle.delegate) {
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blockRecursion = true // We cannot use property selectionPosition since it gets updated after onSelectionStartChanged cursorHandle.position = cursorPosition selectionHandle.position = (selectionStart !== cursorPosition) ? selectionStart : selectionEnd blockRecursion = false } TextSingleton.updateSelectionItem(input) } function activate() { if (activeFocusOnPress) { forceActiveFocus() if (!readOnly) Qt.inputMethod.show() } cursorHandle.activate() selectionHandle.activate() } function moveHandles(cursor, selection) { blockRecursion = true cursorPosition = cursor if (selection === -1) { selectWord() selection = selectionStart } selectionHandle.position = selection cursorHandle.position = cursorPosition blockRecursion = false } MouseArea { id: mouseArea anchors.fill: parent hoverEnabled: true cursorShape: Qt.IBeamCursor acceptedButtons: (input.selectByMouse ? Qt.NoButton : Qt.LeftButton) | (control.menu ? Qt.RightButton : Qt.NoButton) onClicked: { if (editMenu.item) return; var pos = input.positionAt(mouse.x, mouse.y) input.moveHandles(pos, pos) input.activate() } onPressAndHold: { if (editMenu.item) return; var pos = input.positionAt(mouse.x, mouse.y) input.moveHandles(pos, control.selectByMouse ? -1 : pos) input.activate() } } EditMenu { id: editMenu input: parent mouseArea: mouseArea control: parent.control cursorHandle: cursorHandle selectionHandle: selectionHandle anchors.fill: parent } TextHandle { id: selectionHandle editor: input parent: control control: input.control active: control.selectByMouse && Settings.isMobile
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maximum: cursorHandle.position - 1 property var mappedPos: parent.mapFromItem(editor, editor.selectionRectangle.x, editor.selectionRectangle.y) x: mappedPos.x y: mappedPos.y visible: pressed || (input.hasSelection && handleX + handleWidth >= -1 && handleX <= control.width + 1) onPositionChanged: { if (!input.blockRecursion) { input.blockRecursion = true input.select(selectionHandle.position, cursorHandle.position) if (pressed) input.ensureVisible(position) input.blockRecursion = false } } } TextHandle { id: cursorHandle editor: input parent: control control: input.control active: control.selectByMouse && Settings.isMobile minimum: input.hasSelection ? selectionHandle.position + 1 : -1 property var mappedPos: parent.mapFromItem(editor, editor.cursorRectangle.x, editor.cursorRectangle.y) x: mappedPos.x y: mappedPos.y visible: pressed || ((input.cursorVisible || input.hasSelection) && handleX + handleWidth >= -1 && handleX <= control.width + 1) onPositionChanged: { if (!input.blockRecursion) { input.blockRecursion = true if (!input.hasSelection) selectionHandle.position = cursorHandle.position input.select(selectionHandle.position, cursorHandle.position) input.blockRecursion = false } } } }