/usr/share/unity-2d/shell/launcher/LauncherItem.qml is in unity-2d-shell 5.10.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* This file is part of unity-2d
*
* Copyright 2010-2011 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 <http://www.gnu.org/licenses/>.
*/
import QtQuick 1.1
import Unity2d 1.0
import "../common"
import "../common/utils.js" as Utils
/* This component represents a single "tile" in the launcher and the surrounding
indicator icons.
The tile is square in size, with a side determined by the 'tileSize' property,
and rounded borders.
It is composed by a colored background layer, an icon (with 'icon' as source),
and a layer on top that provides a "shine" effect.
The main color of the background layer may be calculated based on the icon color
or may be fixed (depending on the 'backgroundFromIcon' property).
There's also an additional layer which contains only the outline of the tile
that is only appearing during the launching animation (when the 'launching' property is
true). During this animation the background fades out and the outline fades in,
giving a "pulsing" appearance to the tile.
Around the tile we may have on the left a number of "pips" between zero and three.
Pips are small icons used to indicate how many windows we have open for the current tile
(based on the 'windowCount' property).
The rule is: if there's only one window, we just display an arrow. If there are
two we display 2 pips, if there are 3 or more display 3 pips.
On the right of the tile there's an arrow that appears if the tile is currently 'active'.
Additionally, when the tile is marked as 'urgent' it will start an animation where the
rotation is changed so that it appears to be "shaking".
*/
DropItem {
id: item
Accessible.role: Accessible.PushButton
anchors.horizontalCenter: parent.horizontalCenter
height: selectionOutlineSize
property bool isBfb: false
property int tileSize
property int selectionOutlineSize
property alias name: looseItem.objectName
property string desktopFile: ""
property string icon: "image://icons/unknown"
property alias urgentAnimation: urgentAnimation
property bool running: false
property bool active: false
property bool activeOnThisScreen: false
property bool urgent: false
property bool launching: false
property alias interactive: mouse.enabled
property int counter: 0
property bool counterVisible: false
property real progress: 0.0
property bool progressBarVisible: false
property alias emblem: emblemIcon.source
property bool emblemVisible: false
property bool backgroundFromIcon
property color defaultBackgroundColor: "#333333"
property color selectedBackgroundColor: "#dddddd"
property alias shortcutVisible: shortcut.visible
property alias shortcutText: shortcutText.text
property bool beHudItem: shellManager.hudActive && shellManager.hudShell == declarativeView
&& isBfb && launcher2dConfiguration.hideMode == 0
property bool isBeingDragged: false
property int dragPosition
property int pips: 0
property string pipSource: "launcher/artwork/launcher_" +
((pips <= 1) ? "arrow" : "pip") + "_ltr.png"
function getPipOffset(index) {
/* Pips need to always be centered, regardless if they are an even or odd
number. The following simple conditional code works and is less
convoluted than a generic formula. It's ok since we always work with at
most three pips anyway. */
if (pips == 1) return 0
if (pips == 2) return (index == 0) ? -2 : +2
else return (index == 0) ? 0 : (index == 1) ? -4 : +4
}
signal clicked(variant mouse)
signal pressed(variant mouse)
signal entered
signal exited
Item {
/* The actual item, reparented so its y coordinate can be animated. */
id: looseItem
LayoutMirroring.enabled: Utils.isRightToLeft()
LayoutMirroring.childrenInherit: true
parent: list
width: item.width
height: item.height
x: item.x
y: -item.ListView.view.contentY + item.y
/* The item is above the list's contentItem.
Top and bottom gradients, ListViewDragAndDrop and autoscroll areas
are above the item */
z: list.contentItem.z + 1
/* Bind to the scale of the delegate so that it is animated upon insertion/removal */
scale: item.scale
/* The y coordinate is initially not animated, as it would result in an
unwanted effect of every single item popping out from the top of the
launcher (even when they are supposed to be coming from the bottom).
This property is later set to true once the item has taken its
initial position. */
property bool animateY: false
/* This is the arrow shown at the right of the tile when the application is
the active one */
Image {
objectName: "active"
anchors.right: parent.right
y: item.height - item.selectionOutlineSize / 2 - height / 2
mirror: Utils.isRightToLeft()
source: "image://blended/%1color=%2alpha=%3"
.arg("launcher/artwork/launcher_arrow_"
+ (activeOnThisScreen || beHudItem ? "" : "outline_" )
+ "rtl.png")
.arg("lightgrey")
.arg(1.0)
visible: (active && (looseItem.state != "beingDragged")) || beHudItem
}
/* This is the area on the left of the tile where the pips/arrow end up.
I'd rather use a Column here, but the pip images have an halo
around them, so they are pretty tall and would mess up the column.
As a workaround I center all of them, then shift up or down
depending on the index. */
Repeater {
model: item.pips
delegate: Image {
objectName: "pips-" + index
/* FIXME: It seems that when the image is created (or re-used) by the Repeater
for a moment it doesn't have any parent, and therefore warnings are
printed for the following two anchor assignements. This fixes the
problem, but I'm not sure if it should happen in the first place. */
anchors.left: (parent) ? parent.left : undefined
y: item.height - item.selectionOutlineSize / 2 - height / 2 + getPipOffset(index)
mirror: Utils.isRightToLeft()
source: "image://blended/%1color=%2alpha=%3"
.arg(pipSource).arg("lightgrey").arg(1.0)
visible: looseItem.state != "beingDragged"
}
}
MouseArea {
id: mouse
anchors.fill: parent
hoverEnabled: true
acceptedButtons: Qt.LeftButton | Qt.RightButton | Qt.MidButton
onClicked: item.clicked(mouse)
onEntered: item.entered()
onExited: item.exited()
onPressed: item.pressed(mouse)
}
/* This is the for centering the actual tile in the launcher */
Item {
id: tile
width: item.tileSize
height: item.tileSize
anchors.centerIn: parent
/* This draws the icon, the tile background and the sheen on top */
IconTile {
id: icon
width: item.tileSize
height: item.tileSize
anchors.centerIn: parent
activeFocus: item.activeFocus
backgroundFromIcon: item.backgroundFromIcon
source: (beHudItem && hudLoader) ? hudLoader.item.appIcon : item.icon
tileBackgroundImage: (item.isBfb) ? "../launcher/artwork/squircle_base_54.png" : ""
tileShineImage: (item.isBfb) ? "../launcher/artwork/squircle_shine_54.png" : ""
selectedTileBackgroundImage: (item.isBfb) ? "../launcher/artwork/squircle_base_selected_54.png" : ""
/* tile background fade in/out animation */
SequentialAnimation on backgroundOpacity {
NumberAnimation { to: 0.0; duration: 1000; easing.type: Easing.InOutQuad }
NumberAnimation { to: 1.0; duration: 1000; easing.type: Easing.InOutQuad }
loops: Animation.Infinite
alwaysRunToEnd: true
running: launching
}
}
/* This image appears only while launching, and pulses in and out in counterpoint
to the background, so that the outline of the tile is always visible. */
Image {
id: tileOutline
anchors.fill: parent
smooth: true
sourceSize.width: item.tileSize
sourceSize.height: item.tileSize
source: "artwork/round_outline_54x54.png"
opacity: 0
SequentialAnimation on opacity {
NumberAnimation { to: 1.0; duration: 1000; easing.type: Easing.InOutQuad }
NumberAnimation { to: 0.0; duration: 1000; easing.type: Easing.InOutQuad }
loops: Animation.Infinite
alwaysRunToEnd: true
running: launching
}
}
Image {
id: selectionOutline
objectName: "selectionOutline"
anchors.centerIn: parent
smooth: true
source: isBfb ? "artwork/squircle_glow_54.png" : "artwork/round_selected_66x66.png"
visible: declarativeView.focus && item.activeFocus
}
Rectangle {
id: counter
height: 16 - border.width
width: 32
// Using anchors the item will be 1 pixel off with respect to Unity
y: 1
x: 1
radius: height / 2 - 1
smooth: true
border.width: 2
border.color: "white"
color: "#595959"
visible: launcherItem.counterVisible
Text {
anchors.centerIn: parent
font.pixelSize: parent.height - 3
width: parent.width - 5
smooth: true
elide: Text.ElideRight
horizontalAlignment: Text.AlignHCenter
color: "white"
text: launcherItem.counter
}
}
Image {
id: progressBar
objectName: "progressBar"
source: "artwork/progress_bar_trough.png"
anchors.verticalCenter: parent.verticalCenter
anchors.left: parent.left
width: tile.width
smooth: true
state: launcherItem.progressBarVisible ? "" : "hidden"
Image {
id: progressFill
source: "artwork/progress_bar_fill.png"
anchors.verticalCenter: parent.verticalCenter
x: 6
width: sourceSize.width * launcherItem.progress
smooth: true
Behavior on width {
NumberAnimation { duration: 200; easing.type: Easing.InOutSine }
}
}
Behavior on width {
NumberAnimation { duration: 200; easing.type: Easing.InOutSine }
}
states: State {
name: "hidden"
PropertyChanges {
target: progressBar
width: 0
}
// This, combined with anchors.left: parent.left in the default state
// makes the bar seem to come in from the left and go away at the right
AnchorChanges {
target: progressBar
anchors.left: undefined
anchors.right: tile.right
}
}
}
Rectangle {
id: shortcut
anchors.centerIn: parent
color: "#B3000000" // 0.7 opacity on black
radius: 2
width: 22
height: 22
smooth: true
Text {
id: shortcutText
anchors.centerIn: parent
color: "white"
smooth: true
}
}
Image {
id: emblemIcon
anchors.left: parent.left
anchors.top: parent.top
visible: launcherItem.emblemVisible && !counter.visible
smooth: true
}
/* The entire tile will "shake" when the window is marked as "urgent", to attract
the user's attention */
SequentialAnimation {
id: urgentAnimation
running: urgent
alwaysRunToEnd: true
SequentialAnimation {
loops: (urgent) ? 30 : 0
NumberAnimation { target: tile; property: "rotation"; to: 15; duration: 150 }
NumberAnimation { target: tile; property: "rotation"; to: -15; duration: 150 }
}
NumberAnimation { target: tile; property: "rotation"; to: 0; duration: 75 }
}
}
states: State {
name: "beingDragged"
when: item.isBeingDragged
PropertyChanges {
target: looseItem
y: item.dragPosition - tile.height / 2
/* When dragging an item, stack it on top of all its siblings */
z: list.contentItem.z + 2
}
}
Behavior on y {
enabled: /* do not animate during initial positioning */
looseItem.animateY
/* do not animate while dragging to re-order applications */
&& (looseItem.state != "beingDragged")
/* do not animate during insertion/removal */
&& (looseItem.scale == 1)
/* do not animate while flicking the list */
&& !item.ListView.view.moving
&& !item.ListView.view.autoScrolling
NumberAnimation {
duration: 250
easing.type: Easing.OutBack
}
}
/* Delay the animation on y to when the item has been initially positioned. */
Timer {
id: canAnimateY
/* This ensures that the trigger will be executed in the next
iteration of the event loop, at which point the item will have
taken its initial position. */
triggeredOnStart: true
onTriggered: {
stop()
looseItem.animateY = true
}
}
Component.onCompleted: canAnimateY.start()
}
}
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