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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
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 && (!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) {
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
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
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
}
}
}
}
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