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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the examples 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 Nokia Corporation 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 2.0
import "components"
import Boot2Qt.InputContext 1.0
import Qt.labs.folderlistmodel 2.0
Image {
id: keyboard
property var activeKey: 0
property int localeIndex: 1
property string locale: layoutsModel.count > 0 ? layoutsModel.get(localeIndex, "fileBaseName") : "en_GB"
property bool active: Qt.inputMethod.visible
property bool uppercased: uppercaseOnly ? true : (lowercaseOnly ? false : InputContext.shift || InputContext.capsLock)
property bool uppercaseOnly: InputContext.inputMethodHints & Qt.ImhUppercaseOnly
property bool lowercaseOnly: InputContext.inputMethodHints & Qt.ImhLowercaseOnly
property bool numberMode: InputContext.inputMethodHints & (Qt.ImhDialableCharactersOnly | Qt.ImhFormattedNumbersOnly | Qt.ImhDigitsOnly)
property bool symbolMode
z: 1
source: "images/keypad.png"
fillMode: Image.Stretch
width: parent.width
height: keyboardLayout.height+10
y: Qt.inputMethod.visible ? parent.height - height : parent.height
visible: Qt.inputMethod.visible || Qt.inputMethod.animating;
onLocaleChanged: InputContext.setLocale(locale)
onUppercasedChanged: if (Qt.inputMethod.visible) InputContext.handleUppercasing(uppercased)
function changeInputLanguage() {
localeIndex = (localeIndex+1) % layoutsModel.count
}
Behavior on y {
SequentialAnimation {
ScriptAction {
script: {
if (Qt.inputMethod.visible) {
keyboard.symbolMode = false
InputContext.handleUppercasing(uppercased)
}
InputContext.setAnimating(true)
}
}
NumberAnimation { duration: 300; easing.type: Easing.InOutQuad }
ScriptAction { script: InputContext.setAnimating(false) }
}
}
AutoScroller {}
FolderListModel {
id: layoutsModel
folder: "layouts"
nameFilters: ["*_*.qml"]
}
PressedKey {}
InputEngine { id: inputEngine }
AlternativeKeys { id: alternativeKeys }
Timer { id: releaseInaccuracyTimer; interval: 500 }
CharacterPreviewBubble { enabled: keyboardMouse.pressed && !alternativeKeys.active }
Binding {
target: InputContext
property: "keyboardRectangle"
value: Qt.rect(keyboard.x, keyboard.y, keyboard.width, keyboard.height)
}
Column {
id: keyboardLayout
anchors.centerIn: parent
Loader {
active: false
visible: keyboard.symbolMode && !keyboard.numberMode
source: "layouts/symbols.qml"
onVisibleChanged: if (visible) active = true
Component.onCompleted: if (visible) active = true
anchors.horizontalCenter: parent.horizontalCenter
}
Loader {
active: false
visible: keyboard.numberMode
source: "layouts/numbers.qml"
onVisibleChanged: if (visible) active = true
Component.onCompleted: if (visible) active = true
anchors.horizontalCenter: parent.horizontalCenter
}
Loader {
visible: !keyboard.symbolMode && !keyboard.numberMode
source: "layouts/" + keyboard.locale +".qml"
}
}
MouseArea {
id: keyboardMouse
property var initialKey
property var previousKey
property bool dragSymbolMode
property real pressAndHoldMargin: 6
property real releaseMargin: 18
anchors.fill: keyboardLayout
function press(key) {
if (key && key.enabled) {
if (key.key != Qt.Key_unknown || key.text.length > 0)
inputEngine.sendKeyPress(key.key, keyboard.uppercased ? key.text.toUpperCase() : key.text, keyboard.uppercased ? Qt.ShiftModifier : 0, key.repeat)
}
}
function release(key) {
if (key && key.enabled) {
if (key.key != Qt.Key_unknown || key.text.length > 0)
inputEngine.sendKeyRelease(key.key, keyboard.uppercased ? key.text.toUpperCase() : key.text, keyboard.uppercased ? Qt.ShiftModifier : 0)
key.clicked()
} else if (initialKey !== undefined) // rollback
InputContext.preeditText = InputContext.preeditText.substr(0, InputContext.preeditText.length-1)
}
function click(key) {
if (key && key.enabled) {
if (key.key != Qt.Key_unknown || key.text.length > 0)
inputEngine.sendKeyClick(key.key, keyboard.uppercased ? key.text.toUpperCase() : key.text, keyboard.uppercased ? Qt.ShiftModifier : 0, key.repeat)
key.clicked()
}
}
function setActiveKey(activeKey) {
if (keyboard.activeKey)
keyboard.activeKey.active = false
keyboard.activeKey = activeKey
if (keyboard.activeKey)
keyboard.activeKey.active = true
}
function keyOnMouse(mx, my) {
var parentItem = keyboardLayout
var child = parentItem.childAt(mx, my)
while (child != null) {
var position = parentItem.mapToItem(child, mx, my)
mx = position.x; my = position.y
parentItem = child
child = parentItem.childAt(mx, my)
if (child && child.key != undefined)
return child
}
return undefined
}
function hitInitialKey(mouseX, mouseY, margin) {
if (!initialKey)
return false
var position = initialKey.mapFromItem(keyboardMouse, mouseX, mouseY)
return (position.x > -margin
&& position.y > -margin
&& position.x < initialKey.width + margin
&& position.y < initialKey.height + margin)
}
function reset() {
alternativeKeys.close()
previousKey = keyboard.activeKey
setActiveKey(0)
if (dragSymbolMode)
keyboard.symbolMode = false
dragSymbolMode = false
}
onPressed: {
releaseInaccuracyTimer.start()
initialKey = keyOnMouse(mouseX, mouseY)
setActiveKey(initialKey ? initialKey : 0)
press(initialKey)
}
onPositionChanged: {
if (alternativeKeys.active) {
alternativeKeys.move(mouseX)
} else {
var key = keyOnMouse(mouseX, mouseY)
if (key !== keyboard.activeKey) {
setActiveKey(key ? key : 0)
}
}
}
onPressAndHold: {
var key = hitInitialKey(mouseX, mouseY, pressAndHoldMargin) ? initialKey : keyboard.activeKey
if (key != undefined && key == initialKey) {
alternativeKeys.open(key)
if (!alternativeKeys.active && key.key == Qt.Key_Context1) {
dragSymbolMode = true
keyboard.symbolMode = true
}
}
}
onClicked: {}
onReleased: {
var key = keyOnMouse(mouseX, mouseY)
if (alternativeKeys.active) {
alternativeKeys.move(mouseX)
alternativeKeys.clicked()
} else if (dragSymbolMode) {
var key = keyOnMouse(mouseX, mouseY)
release(initialKey)
click(key)
} else {
release(releaseInaccuracyTimer.running && hitInitialKey(mouseX, mouseY, releaseMargin) ? initialKey : keyOnMouse(mouseX, mouseY))
}
reset()
}
onCanceled: reset()
}
}
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