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J-P Nurmi authored
Change-Id: If56b5ca4af119d7897425609dcaf04336f77e032 Reviewed-by:Jens Bache-Wiig <jens.bache-wiig@digia.com>
2f2933a2
TabBar.qml 10.43 KiB
/******************************************************************************** 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 2.1import QtQuick.Controls 1.0/*! \qmltype TabBar \internal \inqmlmodule QtQuick.Controls.Private 1.0*/FocusScope { id: tabbar height: Math.max(tabrow.height, Math.max(leftCorner.height, rightCorner.height)) width: tabView.width activeFocusOnTab: true Keys.onRightPressed: { if (tabView && tabView.currentIndex < tabView.count - 1) tabView.currentIndex = tabView.currentIndex + 1 } Keys.onLeftPressed: { if (tabView && tabView.currentIndex > 0) tabView.currentIndex = tabView.currentIndex - 1 } onTabViewChanged: parent = tabView visible: tabView ? tabView.tabsVisible : true property var tabView property var style property var styleItem: tabView.__styleItem ? tabView.__styleItem : null7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
property bool tabsMovable: styleItem ? styleItem.tabsMovable : false
property int tabsAlignment: styleItem ? styleItem.tabsAlignment : Qt.AlignLeft
property int tabOverlap: styleItem ? styleItem.tabOverlap : 0
property int elide: Text.ElideRight
property real availableWidth: tabbar.width - leftCorner.width - rightCorner.width
property var __selectedTabRect
function tab(index) {
for (var i = 0; i < tabrow.children.length; ++i) {
if (tabrow.children[i].tabindex == index) {
return tabrow.children[i]
}
}
return null;
}
/*! \internal */
function __isAncestorOf(item, child) {
//TODO: maybe removed from 5.2 if the function was merged in qtdeclarative
if (child === item)
return false;
while (child) {
child = child.parent;
if (child === item)
return true;
}
return false;
}
ListView {
id: tabrow
objectName: "tabrow"
Accessible.role: Accessible.PageTabList
spacing: -tabOverlap
orientation: Qt.Horizontal
interactive: false
focus: true
width: Math.min(availableWidth, count ? contentWidth : availableWidth)
height: currentItem ? currentItem.height : 0
highlightMoveDuration: 0
currentIndex: tabView.currentIndex
onCurrentIndexChanged: tabrow.positionViewAtIndex(currentIndex, ListView.Contain)
moveDisplaced: Transition {
NumberAnimation {
property: "x"
duration: 125
easing.type: Easing.OutQuad
}
}
states: [
State {
name: "left"
when: tabsAlignment === Qt.AlignLeft
AnchorChanges { target:tabrow ; anchors.left: parent.left }
PropertyChanges { target:tabrow ; anchors.leftMargin: leftCorner.width }
},
State {
name: "center"
when: tabsAlignment === Qt.AlignHCenter
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AnchorChanges { target:tabrow ; anchors.horizontalCenter: tabbar.horizontalCenter }
},
State {
name: "right"
when: tabsAlignment === Qt.AlignRight
AnchorChanges { target:tabrow ; anchors.right: parent.right }
PropertyChanges { target:tabrow ; anchors.rightMargin: rightCorner.width }
}
]
model: tabView.__tabs
delegate: MouseArea {
id: tabitem
objectName: "mousearea"
hoverEnabled: true
focus: true
Binding {
target: tabbar
when: selected
property: "__selectedTabRect"
value: Qt.rect(x, y, width, height)
}
drag.target: tabsMovable ? tabloader : null
drag.axis: Drag.XAxis
drag.minimumX: drag.active ? 0 : -Number.MAX_VALUE
drag.maximumX: tabrow.width - tabitem.width
property int tabindex: index
property bool selected : tabView.currentIndex === index
property bool hover: containsMouse
property string title: modelData.title
property bool nextSelected: tabView.currentIndex === index + 1
property bool previousSelected: tabView.currentIndex === index - 1
z: selected ? 1 : -index
implicitWidth: tabloader.implicitWidth
implicitHeight: tabloader.implicitHeight
onPressed: {
tabView.currentIndex = index;
var next = tabbar.nextItemInFocusChain(true);
if (__isAncestorOf(tabView.tabAt(currentIndex), next))
next.forceActiveFocus();
else
tabitem.forceActiveFocus();
}
Loader {
id: tabloader
property Item control: tabView
property int index: tabindex
property real availableWidth: tabbar.availableWidth
property QtObject styleData: QtObject {
readonly property alias index: tabitem.tabindex
readonly property alias selected: tabitem.selected
readonly property alias title: tabitem.title
readonly property alias nextSelected: tabitem.nextSelected
readonly property alias previsousSelected: tabitem.previousSelected
readonly property alias hovered: tabitem.hover
readonly property bool activeFocus: tabbar.activeFocus
}
sourceComponent: loader.item ? loader.item.tab : null
Drag.keys: "application/x-tabbartab"
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Drag.active: tabitem.drag.active
Drag.source: tabitem
property real __prevX: 0
property real __dragX: 0
onXChanged: {
if (Drag.active) {
// keep track for the snap back animation
__dragX = tabitem.mapFromItem(tabrow, tabloader.x, 0).x
// when moving to the left, the hot spot is the left edge and vice versa
Drag.hotSpot.x = x < __prevX ? 0 : width
__prevX = x
}
}
width: tabitem.width
state: Drag.active ? "drag" : ""
transitions: [
Transition {
to: "drag"
PropertyAction { target: tabloader; property: "parent"; value: tabrow }
},
Transition {
from: "drag"
SequentialAnimation {
PropertyAction { target: tabloader; property: "parent"; value: tabitem }
NumberAnimation {
target: tabloader
duration: 50
easing.type: Easing.OutQuad
property: "x"
from: tabloader.__dragX
to: 0
}
}
}
]
}
Accessible.role: Accessible.PageTab
Accessible.name: modelData.title
}
}
Loader {
id: leftCorner
anchors.verticalCenter: parent.verticalCenter
anchors.left: parent.left
sourceComponent: styleItem ? styleItem.leftCorner : undefined
width: item ? item.implicitWidth : 0
height: item ? item.implicitHeight : 0
}
Loader {
id: rightCorner
anchors.verticalCenter: parent.verticalCenter
anchors.right: parent.right
sourceComponent: styleItem ? styleItem.rightCorner : undefined
width: item ? item.implicitWidth : 0
height: item ? item.implicitHeight : 0
}
DropArea {
anchors.fill: tabrow
keys: "application/x-tabbartab"
onPositionChanged: {
var source = drag.source
var target = tabrow.itemAt(drag.x, drag.y)
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if (source && target && source !== target) {
source = source.drag.target
target = target.drag.target
var center = target.parent.x + target.width / 2
if ((source.index > target.index && source.x < center)
|| (source.index < target.index && source.x + source.width > center))
tabView.moveTab(source.index, target.index)
}
}
}
}