/*
* Copyright (C) 2013 Canonical, Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
import QtQuick 2.0
import Ubuntu.Components 0.1
import Ubuntu.Components.ListItems 0.1 as ListItems
import Unity 0.1
import Unity.Launcher 0.1
import Ubuntu.Components.Popups 0.1
import "../Components/ListItems"
Item {
id: root
rotation: inverted ? 180 : 0
property var model
property bool inverted: true
property bool dragging: false
property bool moving: launcherListView.moving || launcherListView.flicking
property bool preventHiding: moving || dndArea.draggedIndex >= 0 || dndArea.quickListPopover !== null || dndArea.pressed
property int highlightIndex: -1
signal applicationSelected(string desktopFile)
signal dashItemSelected(int index)
BorderImage {
id: background
source: "graphics/launcher_bg.sci"
anchors.fill: parent
anchors.rightMargin: root.inverted ? 0 : -units.gu(1)
anchors.leftMargin: root.inverted ? -units.gu(1) : 0
rotation: root.rotation
}
Column {
id: mainColumn
anchors {
fill: parent
leftMargin: units.gu(0.5)
rightMargin: units.gu(0.5)
}
MouseArea {
id: dashItem
width: parent.width
height: units.gu(7)
onClicked: root.dashItemSelected(0)
z: 1
Image {
objectName: "dashItem"
width: units.gu(5.5)
height: width
anchors.centerIn: parent
source: "graphics/home.png"
rotation: root.rotation
}
}
ThinDivider {
anchors {
left: parent.left
right: parent.right
margins: -mainColumn.anchors.leftMargin
}
rotation: root.rotation
}
Item {
anchors.left: parent.left
anchors.right: parent.right
height: parent.height - dashItem.height - parent.spacing*2
Item {
anchors.fill: parent
clip: true
ListView {
id: launcherListView
objectName: "launcherListView"
anchors {
fill: parent
topMargin: -extensionSize + units.gu(0.5)
bottomMargin: -extensionSize + units.gu(1)
}
topMargin: extensionSize
bottomMargin: extensionSize
height: parent.height - dashItem.height - parent.spacing*2
model: root.model
cacheBuffer: itemHeight * 3
snapMode: interactive ? ListView.SnapToItem : ListView.NoSnap
highlightRangeMode: ListView.ApplyRange
preferredHighlightBegin: (height - itemHeight) / 2
preferredHighlightEnd: (height + itemHeight) / 2
spacing: units.gu(0.5)
// The size of the area the ListView is extended to make sure items are not
// destroyed when dragging them outside the list. This needs to be at least
// itemHeight to prevent folded items from disappearing and DragArea limits
// need to be smaller than this size to avoid breakage.
property int extensionSize: itemHeight * 3
// The height of the area where icons start getting folded
property int foldingAreaHeight: itemHeight * 0.75
property int itemWidth: width
property int itemHeight: width * 7.5 / 8
property int clickFlickSpeed: units.gu(60)
property int draggedIndex: dndArea.draggedIndex
property real realContentY: contentY - originY + topMargin
property int realItemHeight: itemHeight + spacing
displaced: Transition {
NumberAnimation { properties: "x,y"; duration: UbuntuAnimation.FastDuration; easing: UbuntuAnimation.StandardEasing }
}
delegate: FoldingLauncherDelegate {
id: launcherDelegate
objectName: "launcherDelegate" + index
itemHeight: launcherListView.itemHeight
itemWidth: launcherListView.itemWidth
width: itemWidth
height: itemHeight
iconName: model.icon
count: model.count
progress: model.progress
inverted: root.inverted
highlighted: dragging && index === root.highlightIndex
z: -Math.abs(offset)
maxAngle: 60
property bool dragging: false
ThinDivider {
id: dropIndicator
objectName: "dropIndicator"
anchors.centerIn: parent
width: parent.width + mainColumn.anchors.leftMargin + mainColumn.anchors.rightMargin
opacity: 0
}
states: [
State {
name: "selected"
when: dndArea.selectedItem === launcherDelegate && fakeDragItem.visible && !dragging
PropertyChanges {
target: launcherDelegate
itemOpacity: 0
}
},
State {
name: "dragging"
when: dragging
PropertyChanges {
target: launcherDelegate
height: units.gu(1)
itemOpacity: 0
}
PropertyChanges {
target: dropIndicator
opacity: 1
}
},
State {
name: "expanded"
when: dndArea.draggedIndex >= 0 && (dndArea.preDragging || dndArea.dragging || dndArea.postDragging) && dndArea.draggedIndex != index
PropertyChanges {
target: launcherDelegate
angle: 0
offset: 0
itemOpacity: 0.6
}
}
]
transitions: [
Transition {
from: ""
to: "selected"
NumberAnimation { properties: "itemOpacity"; duration: UbuntuAnimation.FastDuration }
},
Transition {
from: "*"
to: "expanded"
NumberAnimation { properties: "itemOpacity"; duration: UbuntuAnimation.FastDuration }
UbuntuNumberAnimation { properties: "angle,offset" }
},
Transition {
from: "expanded"
to: ""
NumberAnimation { properties: "itemOpacity"; duration: UbuntuAnimation.BriskDuration }
UbuntuNumberAnimation { properties: "angle,offset" }
},
Transition {
from: "selected"
to: "dragging"
UbuntuNumberAnimation { properties: "height" }
NumberAnimation { target: dropIndicator; properties: "opacity"; duration: UbuntuAnimation.FastDuration }
},
Transition {
from: "dragging"
to: "*"
NumberAnimation { target: dropIndicator; properties: "opacity"; duration: UbuntuAnimation.FastDuration }
NumberAnimation { properties: "itemOpacity"; duration: UbuntuAnimation.BriskDuration }
SequentialAnimation {
UbuntuNumberAnimation { properties: "height" }
PropertyAction { target: dndArea; property: "postDragging"; value: false }
PropertyAction { target: dndArea; property: "draggedIndex"; value: -1 }
}
}
]
}
MouseArea {
id: dndArea
objectName: "dndArea"
anchors {
fill: parent
topMargin: launcherListView.topMargin
bottomMargin: launcherListView.bottomMargin
}
drag.minimumY: -launcherListView.topMargin
drag.maximumY: height + launcherListView.bottomMargin
property int draggedIndex: -1
property var selectedItem
property bool preDragging: false
property bool dragging: selectedItem !== undefined && selectedItem.dragging
property bool postDragging: false
property int startX
property int startY
property var quickListPopover: null
onPressed: {
selectedItem = launcherListView.itemAt(mouseX, mouseY + launcherListView.realContentY)
selectedItem.highlighted = true
}
onClicked: {
var index = Math.floor((mouseY + launcherListView.realContentY) / launcherListView.realItemHeight);
var clickedItem = launcherListView.itemAt(mouseX, mouseY + launcherListView.realContentY)
// First/last item do the scrolling at more than 12 degrees
if (index == 0 || index == launcherListView.count - 1) {
if (clickedItem.angle > 12) {
launcherListView.flick(0, -launcherListView.clickFlickSpeed);
} else if (clickedItem.angle < -12) {
launcherListView.flick(0, launcherListView.clickFlickSpeed);
} else {
root.applicationSelected(LauncherModel.get(index).desktopFile);
}
return;
}
// the rest launches apps up to an angle of 30 degrees
if (clickedItem.angle > 30) {
launcherListView.flick(0, -launcherListView.clickFlickSpeed);
} else if (clickedItem.angle < -30) {
launcherListView.flick(0, launcherListView.clickFlickSpeed);
} else {
root.applicationSelected(LauncherModel.get(index).desktopFile);
}
}
onCanceled: {
selectedItem.highlighted = false
selectedItem = undefined;
preDragging = false;
postDragging = false;
}
onReleased: {
var droppedIndex = draggedIndex;
if (dragging) {
postDragging = true;
} else {
draggedIndex = -1;
}
selectedItem.highlighted = false
selectedItem.dragging = false;
selectedItem = undefined;
preDragging = false;
drag.target = undefined
progressiveScrollingTimer.stop();
launcherListView.interactive = true;
if (droppedIndex >= launcherListView.count - 2 && postDragging) {
launcherListView.flick(0, -launcherListView.clickFlickSpeed);
}
}
onPressAndHold: {
if (Math.abs(selectedItem.angle) > 30) {
return;
}
draggedIndex = Math.floor((mouseY + launcherListView.realContentY) / launcherListView.realItemHeight);
// Opening QuickList
var quickListModel = launcherListView.model.get(draggedIndex).quickList
var quickListAppId = launcherListView.model.get(draggedIndex).appId
quickListPopover = PopupUtils.open(popoverComponent, selectedItem,
{model: quickListModel, appId: quickListAppId})
launcherListView.interactive = false
var yOffset = draggedIndex > 0 ? (mouseY + launcherListView.realContentY) % (draggedIndex * launcherListView.realItemHeight) : mouseY + launcherListView.realContentY
fakeDragItem.iconName = launcherListView.model.get(draggedIndex).icon
fakeDragItem.x = 0
fakeDragItem.y = mouseY - yOffset + launcherListView.anchors.topMargin + launcherListView.topMargin
fakeDragItem.angle = selectedItem.angle * (root.inverted ? -1 : 1)
fakeDragItem.offset = selectedItem.offset * (root.inverted ? -1 : 1)
fakeDragItem.count = LauncherModel.get(draggedIndex).count
fakeDragItem.progress = LauncherModel.get(draggedIndex).progress
fakeDragItem.flatten()
drag.target = fakeDragItem
startX = mouseX
startY = mouseY
}
onPositionChanged: {
if (draggedIndex >= 0) {
if (!selectedItem.dragging) {
var distance = Math.max(Math.abs(mouseX - startX), Math.abs(mouseY - startY))
if (!preDragging && distance > units.gu(1.5)) {
preDragging = true;
PopupUtils.close(quickListPopover)
}
if (distance > launcherListView.itemHeight) {
selectedItem.dragging = true
preDragging = false;
}
}
if (!selectedItem.dragging) {
return
}
var itemCenterY = fakeDragItem.y + fakeDragItem.height / 2
// Move it down by the the missing size to compensate index calculation with only expanded items
itemCenterY += (launcherListView.itemHeight - selectedItem.height) / 2
if (mouseY > launcherListView.height - launcherListView.topMargin - launcherListView.bottomMargin - launcherListView.realItemHeight) {
progressiveScrollingTimer.downwards = false
progressiveScrollingTimer.start()
} else if (mouseY < launcherListView.realItemHeight) {
progressiveScrollingTimer.downwards = true
progressiveScrollingTimer.start()
} else {
progressiveScrollingTimer.stop()
}
var newIndex = (itemCenterY + launcherListView.realContentY) / launcherListView.realItemHeight
if (newIndex > draggedIndex + 1) {
newIndex = draggedIndex + 1
} else if (newIndex < draggedIndex) {
newIndex = draggedIndex -1
} else {
return
}
if (newIndex >= 0 && newIndex < launcherListView.count) {
launcherListView.model.move(draggedIndex, newIndex)
draggedIndex = newIndex
}
}
}
}
Timer {
id: progressiveScrollingTimer
interval: 2
repeat: true
running: false
property bool downwards: true
onTriggered: {
if (downwards) {
var minY = -launcherListView.topMargin
if (launcherListView.contentY > minY) {
launcherListView.contentY = Math.max(launcherListView.contentY - units.dp(2), minY)
}
} else {
var maxY = launcherListView.contentHeight - launcherListView.height + launcherListView.topMargin + launcherListView.originY
if (launcherListView.contentY < maxY) {
launcherListView.contentY = Math.min(launcherListView.contentY + units.dp(2), maxY)
}
}
}
}
}
}
LauncherDelegate {
id: fakeDragItem
objectName: "fakeDragItem"
visible: dndArea.draggedIndex >= 0 && !dndArea.postDragging
itemWidth: launcherListView.itemWidth
itemHeight: launcherListView.itemHeight
height: itemHeight
width: itemWidth
rotation: root.rotation
highlighted: true
itemOpacity: 0.8
function flatten() {
fakeDragItemAnimation.start();
}
UbuntuNumberAnimation {
id: fakeDragItemAnimation
target: fakeDragItem;
properties: "angle,offset";
to: 0
}
}
}
}
Component {
id: popoverComponent
Popover {
id: popover
property var model
property string appId
contentWidth: quickListColumn.width
// FIXME: There's a bug in the Popover positioning that it covers the item in case it is rotated.
// https://bugs.launchpad.net/ubuntu-ui-toolkit/+bug/1204470
// For now, let's move the Popover around with callerMargin.
// Remove popupMargin once the bug is fixed.
property int popupMargin: root.inverted ? launcherListView.itemHeight : 0;
callerMargin: units.gu(1) + popupMargin
Column {
id: quickListColumn
width: units.gu(30)
height: childrenRect.height
Repeater {
model: popover.model
ListItems.Standard {
objectName: "quickListEntry" + index
text: (model.clickable ? "" : "") + model.label + (model.clickable ? "" : "")
highlightWhenPressed: model.clickable
onClicked: {
if (!model.clickable) {
return;
}
LauncherModel.quickListActionInvoked(appId, index);
PopupUtils.close(popover);
}
}
}
}
}
}
}