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/****************************************************************************
**
** Copyright (C) 2013 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 1.2
import QtQuick.Controls.Styles 1.1
Loader {
id: menuFrameLoader
property var __menu: root
visible: status === Loader.Ready
width: content.width + (d.style ? d.style.padding.left + d.style.padding.right : 0)
height: content.height + (d.style ? d.style.padding.top + d.style.padding.bottom : 0)
Loader {
id: styleLoader
active: !__menu.isNative
sourceComponent: __menu.style
property alias __control: menuFrameLoader
onStatusChanged: {
if (status === Loader.Error)
console.error("Failed to load Style for", __menu)
}
}
sourceComponent: d.style ? d.style.frame : undefined
QtObject {
id: d
property var mnemonicsMap: ({})
readonly property Style style: styleLoader.item
readonly property Component menuItemPanel: style ? style.menuItemPanel : null
function canBeHovered(index) {
var item = content.menuItemAt(index)
if (item && item.styleData.type !== MenuItemType.Separator && item.styleData.enabled) {
__menu.__currentIndex = index
return true
}
return false
}
function triggerCurrent() {
var item = content.menuItemAt(__menu.__currentIndex)
if (item)
content.triggered(item)
}
function triggerAndDismiss(item) {
if (item && item.styleData.type !== MenuItemType.Separator) {
__menu.__dismissMenu()
if (item.styleData.type !== MenuItemType.Menu)
item.__menuItem.trigger()
}
}
}
focus: true
Keys.onPressed: {
var item = null
if (!(event.modifiers & Qt.AltModifier)
&& (item = d.mnemonicsMap[event.text.toUpperCase()])) {
if (item.styleData.type === MenuItemType.Menu) {
__menu.__currentIndex = item.__menuItemIndex
item.__showSubMenu(true)
item.__menuItem.__currentIndex = 0
} else {
d.triggerAndDismiss(item)
}
event.accepted = true
} else {
event.accepted = false
}
}
Keys.onEscapePressed: __menu.__dismissMenu()
Keys.onDownPressed: {
if (__menu.__currentIndex < 0)
__menu.__currentIndex = -1
for (var i = __menu.__currentIndex + 1;
i < __menu.items.length && !d.canBeHovered(i); i++)
;
event.accepted = true
}
Keys.onUpPressed: {
for (var i = __menu.__currentIndex - 1;
i >= 0 && !d.canBeHovered(i); i--)
;
event.accepted = true
}
Keys.onLeftPressed: {
if ((event.accepted = __menu.__parentMenu.hasOwnProperty("title")))
__closeMenu()
}
Keys.onRightPressed: {
var item = content.menuItemAt(__menu.__currentIndex)
if ((event.accepted = (item && item.styleData.type === MenuItemType.Menu))) {
item.__showSubMenu(true)
item.__menuItem.__currentIndex = 0
}
}
Keys.onSpacePressed: d.triggerCurrent()
Keys.onReturnPressed: d.triggerCurrent()
Keys.onEnterPressed: d.triggerCurrent()
Binding {
// Make sure the styled frame is in the background
target: item
property: "z"
value: content.z - 1
}
ColumnMenuContent {
id: content
x: d.style ? d.style.padding.left : 0
y: d.style ? d.style.padding.top : 0
menuItemDelegate: menuItemComponent
scrollIndicatorStyle: d.style && d.style.scrollIndicator || null
scrollerStyle: d.style && d.style.__scrollerStyle
itemsModel: __menu.items
minWidth: __menu.__minimumWidth
maxHeight: d.style ? d.style.__maxPopupHeight : 0
onTriggered: d.triggerAndDismiss(item)
}
Component {
id: menuItemComponent
Loader {
id: menuItemLoader
property QtObject styleData: QtObject {
id: opts
readonly property int index: __menuItemIndex
readonly property int type: __menuItem ? __menuItem.type : -1
readonly property bool selected: type !== MenuItemType.Separator && __menu.__currentIndex === index
readonly property string text: type === MenuItemType.Menu ? __menuItem.title :
type !== MenuItemType.Separator ? __menuItem.text : ""
readonly property bool underlineMnemonic: __menu.__contentItem.altPressed
readonly property string shortcut: !!__menuItem && __menuItem["shortcut"] || ""
readonly property var iconSource: !!__menuItem && __menuItem["iconSource"] || undefined
readonly property bool enabled: type !== MenuItemType.Separator && !!__menuItem && __menuItem.enabled
readonly property bool checked: !!__menuItem && !!__menuItem["checked"]
readonly property bool checkable: !!__menuItem && !!__menuItem["checkable"]
readonly property bool exclusive: !!__menuItem && !!__menuItem["exclusiveGroup"]
readonly property int scrollerDirection: Qt.NoArrow
}
readonly property var __menuItem: modelData
readonly property int __menuItemIndex: index
sourceComponent: d.menuItemPanel
enabled: visible && opts.enabled
visible: !!__menuItem && __menuItem.visible
active: visible
function __showSubMenu(immediately) {
if (immediately) {
if (__menu.__currentIndex === __menuItemIndex) {
if (__menuItem.__usingDefaultStyle)
__menuItem.style = __menu.style
__menuItem.__popup(menuFrameLoader.width - (d.style.submenuOverlap + d.style.padding.right), -d.style.padding.top, -1)
}
} else {
openMenuTimer.start()
}
}
Timer {
id: openMenuTimer
interval: d.style.submenuPopupDelay
onTriggered: menuItemLoader.__showSubMenu(true)
}
function __closeSubMenu() {
if (openMenuTimer.running)
openMenuTimer.stop()
else if (__menuItem.__popupVisible)
closeMenuTimer.start()
}
Timer {
id: closeMenuTimer
interval: 1
onTriggered: {
if (__menu.__currentIndex !== __menuItemIndex)
__menuItem.__closeMenu()
}
}
onLoaded: {
__menuItem.__visualItem = menuItemLoader
if (content.width < item.implicitWidth)
content.width = item.implicitWidth
var title = opts.text
var ampersandPos = title.indexOf("&")
if (ampersandPos !== -1)
d.mnemonicsMap[title[ampersandPos + 1].toUpperCase()] = menuItemLoader
}
Binding {
target: menuItemLoader.item
property: "width"
property alias menuItem: menuItemLoader.item
value: menuItem ? Math.max(__menu.__minimumWidth, content.width) - 2 * menuItem.x : 0
}
}
}
}
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