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/*
* Copyright 2012 Marco Martin <mart@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
import QtQuick 2.1
import QtGraphicalEffects 1.0
import org.kde.plasma.mobilecomponents 0.2
import "private"
/**Documented API
Inherits:
Item
Imports:
QtQuick 2.1
Description:
Split Drawers are used to expose additional UI elements which are optional and can be used in conjunction with the main UI elements. For example the Resource Browser uses a Split Drawer to select different kinds of filters for the main view.
Properties:
bool open:
If true the drawer is open showing the contents of the "drawer" component.
Item page:
It's the default property. it's the main content of the drawer page, the part that is always shown
Item drawer:
It's the part that can be pulled in and out, will act as a sidebar.
int visibleDrawerWidth: the width of the visible portion of the drawer: it updates while dragging or animating
**/
AbstractDrawer {
id: root
anchors {
fill: parent
}
visible: true
default property alias page: mainPage.data
property Item contentItem
property alias opened: sidebar.open
property int visibleDrawerWidth: browserFrame.x
Component.onCompleted: {
mainPage.width = browserFrame.width
}
onContentItemChanged: contentItem.parent = drawerPage
MouseArea {
id: mouseEventListener
z: 200
drag.filterChildren: true
//drag.target: browserFrame
property int startMouseX
property int oldMouseX
property int startBrowserFrameX
property bool toggle: false
property string startState
anchors.fill: parent
onPressed: {
if (drawerPage.children.length == 0 || (browserFrame.state == "Closed" && mouse.x > Units.gridUnit) ||
mouse.x < browserFrame.x) {
mouse.accepted = false;
return;
}
toggle = true;
startBrowserFrameX = browserFrame.x;
oldMouseX = startMouseX = mouse.x;
startState = browserFrame.state;
browserFrame.state = "Dragging";
browserFrame.x = startBrowserFrameX;
}
onPositionChanged: {
browserFrame.x = Math.max(0, browserFrame.x + mouse.x - oldMouseX);
oldMouseX = mouse.x;
if (Math.abs(mouse.x - startMouseX) > Units.gridUnit * 2) {
toggle = false;
}
}
onReleased: {
if (toggle) {
browserFrame.state = startState == "Open" ? "Closed" : "Open"
} else if (browserFrame.x < sidebar.width / 2) {
browserFrame.state = "Closed";
} else {
browserFrame.state = "Open";
}
}
onClicked: root.clicked()
}
Rectangle {
id: browserFrame
z: 100
color: Theme.backgroundColor
state: "Closed"
onStateChanged: sidebar.open = (state != "Closed")
anchors {
top: parent.top
bottom: parent.bottom
}
width: root.width;
Item {
id: mainPage
onChildrenChanged: mainPage.children[0].anchors.fill = mainPage
anchors.fill: parent
}
Rectangle {
anchors.fill: parent
color: "black"
opacity: Math.min(0.4, 0.4 * (browserFrame.x / sidebar.width))
}
LinearGradient {
width: Units.gridUnit/2
anchors {
right: parent.left
top: parent.top
bottom: parent.bottom
rightMargin: -1
}
start: Qt.point(0, 0)
end: Qt.point(Units.gridUnit/2, 0)
gradient: Gradient {
GradientStop {
position: 0.0
color: "transparent"
}
GradientStop {
position: 0.7
color: Qt.rgba(0, 0, 0, 0.15)
}
GradientStop {
position: 1.0
color: Qt.rgba(0, 0, 0, 0.3)
}
}
}
states: [
State {
name: "Open"
PropertyChanges {
target: browserFrame
x: sidebar.width
}
},
State {
name: "Dragging"
PropertyChanges {
target: browserFrame
x: mouseEventListener.startBrowserFrameX
}
},
State {
name: "Closed"
PropertyChanges {
target: browserFrame
x: 0
}
}
]
transitions: [
Transition {
//Exclude Dragging
to: "Open,Closed,Hidden"
NumberAnimation {
properties: "x"
duration: Units.longDuration
easing.type: Easing.InOutQuad
}
}
]
}
Item {
id: sidebar
property bool open: false
onOpenChanged: {
if (drawerPage.children.length == 0) {
return;
}
if (open) {
browserFrame.state = "Open";
} else {
browserFrame.state = "Closed";
}
}
width: Math.min(parent.width/4*3, Math.max(root.contentItem ? root.contentItem.implicitWidth : 0, parent.width/4))
anchors {
left: parent.left
top: parent.top
bottom: parent.bottom
}
Item {
id: drawerPage
anchors.fill: parent
clip: false
onChildrenChanged: drawerPage.children[0].anchors.fill = drawerPage
}
}
}
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