/*
* 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.Launcher 0.1
import Ubuntu.Components.Popups 0.1
import "../Components/ListItems"
import "../Components/"
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 || quickList.state === "open" || dndArea.pressed
property int highlightIndex: -1
signal applicationSelected(string appId)
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
}
MouseArea {
id: dashItem
width: parent.width
height: units.gu(7)
onClicked: root.dashItemSelected(0)
z: 1
Image {
objectName: "dashItem"
width: units.gu(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)
leftMargin: units.gu(0.5)
rightMargin: units.gu(0.5)
}
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: 0
// Setting extensionSize after the list has been populated because it has
// the potential to mess up with the intial positioning in combination
// with snapping to the center of the list. This catches all the cases
// where the item would be outside the list for more than itemHeight / 2.
// For the rest, give it a flick to scroll to the beginning. Note that
// the flicking alone isn't enough because in some cases it's not strong
// enough to overcome the snapping.
// https://bugreports.qt-project.org/browse/QTBUG-32251
Component.onCompleted: {
extensionSize = itemHeight * 3
flick(0, clickFlickSpeed)
}
// The height of the area where icons start getting folded
property int foldingStartHeight: units.gu(6.5)
// The height of the area where the items reach the final folding angle
property int foldingStopHeight: foldingStartHeight - itemHeight - spacing
property int itemWidth: units.gu(7)
property int itemHeight: units.gu(6.5)
property int clickFlickSpeed: units.gu(60)
property int draggedIndex: dndArea.draggedIndex
property real realContentY: contentY - originY + topMargin
property int realItemHeight: itemHeight + spacing
// In case the start dragging transition is running, we need to delay the
// move because the displaced transition would clash with it and cause items
// to be moved to wrong places
property bool draggingTransitionRunning: false
property int scheduledMoveTo: -1
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
itemFocused: model.focused
inverted: root.inverted
z: -Math.abs(offset)
maxAngle: 55
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 {
id: draggingTransition
from: "selected"
to: "dragging"
SequentialAnimation {
PropertyAction { target: launcherListView; property: "draggingTransitionRunning"; value: true }
ParallelAnimation {
UbuntuNumberAnimation { properties: "height" }
NumberAnimation { target: dropIndicator; properties: "opacity"; duration: UbuntuAnimation.FastDuration }
}
ScriptAction {
script: {
if (launcherListView.scheduledMoveTo > -1) {
launcherListView.model.move(dndArea.draggedIndex, launcherListView.scheduledMoveTo)
dndArea.draggedIndex = launcherListView.scheduledMoveTo
launcherListView.scheduledMoveTo = -1
}
}
}
PropertyAction { target: launcherListView; property: "draggingTransitionRunning"; value: false }
}
},
Transition {
from: "dragging"
to: "*"
NumberAnimation { target: dropIndicator; properties: "opacity"; duration: UbuntuAnimation.FastDuration }
NumberAnimation { properties: "itemOpacity"; duration: UbuntuAnimation.BriskDuration }
SequentialAnimation {
ScriptAction { script: if (index == launcherListView.count-1) launcherListView.flick(0, -launcherListView.clickFlickSpeed); }
UbuntuNumberAnimation { properties: "height" }
ScriptAction { script: if (index == launcherListView.count-1) launcherListView.flick(0, -launcherListView.clickFlickSpeed); }
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 !== null && selectedItem.dragging
property bool postDragging: false
property int startX
property int startY
onPressed: {
selectedItem = launcherListView.itemAt(mouseX, mouseY + launcherListView.realContentY)
}
onClicked: {
var index = Math.floor((mouseY + launcherListView.realContentY) / launcherListView.realItemHeight);
var clickedItem = launcherListView.itemAt(mouseX, mouseY + launcherListView.realContentY)
// Check if we actually clicked an item or only at the spacing in between
if (clickedItem === null) {
return;
}
// 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).appId);
}
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).appId);
}
}
onCanceled: {
selectedItem = undefined;
preDragging = false;
postDragging = false;
}
onReleased: {
var droppedIndex = draggedIndex;
if (dragging) {
postDragging = true;
} else {
draggedIndex = -1;
}
if (!selectedItem) {
return;
}
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);
}
if (droppedIndex == 0 && postDragging) {
launcherListView.flick(0, launcherListView.clickFlickSpeed);
}
}
onPressAndHold: {
if (Math.abs(selectedItem.angle) > 30) {
return;
}
draggedIndex = Math.floor((mouseY + launcherListView.realContentY) / launcherListView.realItemHeight);
// Opening QuickList
quickList.item = selectedItem;
quickList.model = launcherListView.model.get(draggedIndex).quickList;
quickList.appId = launcherListView.model.get(draggedIndex).appId;
quickList.state = "open";
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 = units.gu(0.5)
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;
quickList.state = "";
}
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) {
if (launcherListView.draggingTransitionRunning) {
launcherListView.scheduledMoveTo = newIndex
} else {
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
itemOpacity: 0.9
function flatten() {
fakeDragItemAnimation.start();
}
UbuntuNumberAnimation {
id: fakeDragItemAnimation
target: fakeDragItem;
properties: "angle,offset";
to: 0
}
}
}
}
UbuntuShapeForItem {
id: quickListShape
objectName: "quickListShape"
anchors.fill: quickList
opacity: quickList.state === "open" ? 0.8 : 0
visible: opacity > 0
rotation: root.rotation
Behavior on opacity {
UbuntuNumberAnimation {}
}
image: quickList
Image {
anchors {
right: parent.left
rightMargin: -units.dp(4)
verticalCenter: parent.verticalCenter
verticalCenterOffset: -quickList.offset
}
height: units.gu(1)
width: units.gu(2)
source: "graphics/quicklist_tooltip.png"
rotation: 90
}
InverseMouseArea {
anchors.fill: parent
enabled: quickList.state == "open"
onClicked: {
quickList.state = ""
}
}
}
Rectangle {
id: quickList
objectName: "quickList"
color: "#221e1c"
width: units.gu(30)
height: quickListColumn.height
anchors {
left: root.inverted ? undefined : parent.right
right: root.inverted ? parent.left : undefined
margins: units.gu(1)
}
y: itemCenter - (height / 2) + offset
rotation: root.rotation
property var model
property string appId
property var item
// internal
property int itemCenter: item ? root.mapFromItem(quickList.item).y + (item.height / 2) : units.gu(1)
property int offset: itemCenter + (height/2) + units.gu(1) > parent.height ? -itemCenter - (height/2) - units.gu(1) + parent.height :
itemCenter - (height/2) < units.gu(1) ? (height/2) - itemCenter + units.gu(1) : 0
Column {
id: quickListColumn
width: parent.width
height: childrenRect.height
Repeater {
id: popoverRepeater
model: quickList.model
ListItems.Standard {
objectName: "quickListEntry" + index
text: (model.clickable ? "" : "") + model.label + (model.clickable ? "" : "")
highlightWhenPressed: model.clickable
// FIXME: This is a workaround for the theme not being context sensitive. I.e. the
// ListItems don't know that they are sitting in a themed Popover where the color
// needs to be inverted.
__foregroundColor: Theme.palette.selected.backgroundText
onClicked: {
if (!model.clickable) {
return;
}
quickList.state = "";
// Unsetting model to prevent showing changing entries during fading out
// that may happen because of triggering an action.
LauncherModel.quickListActionInvoked(quickList.appId, index);
quickList.model = undefined;
}
}
}
}
}
}