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taskbar.js
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/*
* This file is part of the Zorin Taskbar extension for Zorin OS.
*
* 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, either version 2 of the License, 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 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/>.
*
*
* Credits:
* This file is based on code from the Dash to Dock extension by micheleg
* and code from the Dash to Panel extension
* Some code was also adapted from the upstream Gnome Shell source code.
*/
const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const GObject = imports.gi.GObject;
const Gtk = imports.gi.Gtk;
const Signals = imports.signals;
const Meta = imports.gi.Meta;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
const SearchController = imports.ui.main.overview._overview._controls._searchController;
const AppDisplay = imports.ui.main.overview._overview._controls.appDisplay;
const AppFavorites = imports.ui.appFavorites;
const Dash = imports.ui.dash;
const DND = imports.ui.dnd;
const IconGrid = imports.ui.iconGrid;
const Main = imports.ui.main;
const PopupMenu = imports.ui.popupMenu;
const Workspace = imports.ui.workspace;
const Me = imports.misc.extensionUtils.getCurrentExtension();
const AppIcons = Me.imports.appIcons;
const Panel = Me.imports.panel;
const PanelManager = Me.imports.panelManager;
const PanelSettings = Me.imports.panelSettings;
const Pos = Me.imports.panelPositions;
const Utils = Me.imports.utils;
const WindowPreview = Me.imports.windowPreview;
var DASH_ANIMATION_TIME = Dash.DASH_ANIMATION_TIME / (Dash.DASH_ANIMATION_TIME > 1 ? 1000 : 1);
var DASH_ITEM_HOVER_TIMEOUT = Dash.DASH_ITEM_HOVER_TIMEOUT;
var MIN_ICON_SIZE = 4;
var APPICON_MARGIN = 4;
var APPICON_PADDING = 8;
const T1 = 'ensureAppIconVisibilityTimeout'
const T2 = 'showLabelTimeout'
const T3 = 'resetHoverTimeout'
/**
* Extend DashItemContainer
*
* - set label position based on taskbar orientation
*
* I can't subclass the original object because of this: https://bugzilla.gnome.org/show_bug.cgi?id=688973.
* thus use this ugly pattern.
*/
function extendDashItemContainer(dashItemContainer) {
dashItemContainer.showLabel = AppIcons.ItemShowLabel;
};
/* This class is a fork of the upstream DashActor class (ui.dash.js)
*
* Summary of changes:
* - modified chldBox calculations for when 'show-apps-at-top' option is checked
* - handle horizontal dash
*/
var TaskbarActor = GObject.registerClass({
}, class TaskbarActor extends St.Widget {
_init(delegate) {
this._delegate = delegate;
this._currentBackgroundColor = 0;
super._init({ name: 'zorintaskbarTaskbar',
layout_manager: new Clutter.BoxLayout({ orientation: Clutter.Orientation[delegate.dtpPanel.getOrientation().toUpperCase()] }),
clip_to_allocation: true });
}
vfunc_allocate(box) {
this.set_allocation(box);
let panel = this._delegate.dtpPanel;
let availFixedSize = box[panel.fixedCoord.c2] - box[panel.fixedCoord.c1];
let availVarSize = box[panel.varCoord.c2] - box[panel.varCoord.c1];
let [dummy, scrollview, leftFade, rightFade] = this.get_children();
let [, natSize] = this[panel.sizeFunc](availFixedSize);
let childBox = new Clutter.ActorBox();
let orientation = panel.getOrientation();
dummy.allocate(childBox);
childBox[panel.varCoord.c1] = box[panel.varCoord.c1];
childBox[panel.varCoord.c2] = Math.min(availVarSize, natSize);
childBox[panel.fixedCoord.c1] = box[panel.fixedCoord.c1];
childBox[panel.fixedCoord.c2] = box[panel.fixedCoord.c2];
scrollview.allocate(childBox);
let [value, , upper, , , pageSize] = scrollview[orientation[0] + 'scroll'].adjustment.get_values();
upper = Math.floor(upper);
scrollview._dtpFadeSize = upper > pageSize ? this._delegate.iconSize : 0;
if (this._currentBackgroundColor !== panel.dynamicTransparency.currentBackgroundColor) {
this._currentBackgroundColor = panel.dynamicTransparency.currentBackgroundColor;
let gradientStyle = 'background-gradient-start: ' + this._currentBackgroundColor +
'background-gradient-direction: ' + orientation;
leftFade.set_style(gradientStyle);
rightFade.set_style(gradientStyle);
}
childBox[panel.varCoord.c2] = childBox[panel.varCoord.c1] + (value > 0 ? scrollview._dtpFadeSize : 0);
leftFade.allocate(childBox);
childBox[panel.varCoord.c1] = box[panel.varCoord.c2] - (value + pageSize < upper ? scrollview._dtpFadeSize : 0);
childBox[panel.varCoord.c2] = box[panel.varCoord.c2];
rightFade.allocate(childBox);
}
// We want to request the natural size of all our children
// as our natural width, so we chain up to StWidget (which
// then calls BoxLayout)
vfunc_get_preferred_width(forHeight) {
let [, natWidth] = St.Widget.prototype.vfunc_get_preferred_width.call(this, forHeight);
return [0, natWidth];
}
vfunc_get_preferred_height(forWidth) {
let [, natHeight] = St.Widget.prototype.vfunc_get_preferred_height.call(this, forWidth);
return [0, natHeight];
}
});
/* This class is a fork of the upstream dash class (ui.dash.js)
*
* Summary of changes:
* - disconnect global signals adding a destroy method;
* - play animations even when not in overview mode
* - set a maximum icon size
* - show running and/or favorite applications
* - emit a custom signal when an app icon is added
* - Add scrollview
* Ensure actor is visible on keyfocus inside the scrollview
* - add 128px icon size, might be useful for hidpi display
* - Sync minimization application target position.
*/
var Taskbar = class {
constructor(panel) {
this.dtpPanel = panel;
// start at smallest size due to running indicator drawing area expanding but not shrinking
this.iconSize = 16;
this._shownInitially = false;
this._signalsHandler = new Utils.GlobalSignalsHandler();
this._timeoutsHandler = new Utils.TimeoutsHandler();
this._labelShowing = false;
this.fullScrollView = 0;
let isVertical = panel.checkIfVertical();
this._box = new St.BoxLayout({ vertical: isVertical,
clip_to_allocation: false,
x_align: Clutter.ActorAlign.START,
y_align: Clutter.ActorAlign.START });
this._container = new TaskbarActor(this);
this._scrollView = new St.ScrollView({ name: 'zorintaskbarScrollview',
hscrollbar_policy: Gtk.PolicyType.NEVER,
vscrollbar_policy: Gtk.PolicyType.NEVER,
enable_mouse_scrolling: true });
this._scrollView.connect('scroll-event', this._onScrollEvent.bind(this));
this._scrollView.add_actor(this._box);
this._showAppsIconWrapper = panel.showAppsIconWrapper;
this._showAppsIconWrapper.connect('menu-state-changed', (showAppsIconWrapper, opened) => {
this._itemMenuStateChanged(showAppsIconWrapper, opened);
});
// an instance of the showAppsIcon class is encapsulated in the wrapper
this._showAppsIcon = this._showAppsIconWrapper.realShowAppsIcon;
this.showAppsButton = this._showAppsIcon.toggleButton;
if (isVertical) {
this.showAppsButton.set_width(panel.geom.w);
}
this.showAppsButton.connect('notify::checked', this._onShowAppsButtonToggled.bind(this));
this.showAppsButton.checked = (SearchController._showAppsButton) ? SearchController._showAppsButton.checked : false;
this._showAppsIcon.childScale = 1;
this._showAppsIcon.childOpacity = 255;
this._showAppsIcon.icon.setIconSize(this.iconSize);
this._hookUpLabel(this._showAppsIcon, this._showAppsIconWrapper);
this._container.add_child(new St.Widget({ width: 0, reactive: false }));
this._container.add_actor(this._scrollView);
let orientation = panel.getOrientation();
let fadeStyle = 'background-gradient-direction:' + orientation;
let fade1 = new St.Widget({ style_class: 'scrollview-fade', reactive: false });
let fade2 = new St.Widget({ style_class: 'scrollview-fade',
reactive: false,
pivot_point: new imports.gi.Graphene.Point({ x: .5, y: .5 }),
rotation_angle_z: 180 });
fade1.set_style(fadeStyle);
fade2.set_style(fadeStyle);
this._container.add_actor(fade1);
this._container.add_actor(fade2);
this.previewMenu = new WindowPreview.PreviewMenu(panel);
this.previewMenu.enable();
let rtl = Clutter.get_default_text_direction() == Clutter.TextDirection.RTL;
this.actor = new St.Bin({ child: this._container,
y_align: St.Align.START, x_align:rtl?St.Align.END:St.Align.START
});
let adjustment = this._scrollView[orientation[0] + 'scroll'].adjustment;
this._workId = Main.initializeDeferredWork(this._box, this._redisplay.bind(this));
this._settings = new Gio.Settings({ schema_id: 'org.gnome.shell' });
this._appSystem = Shell.AppSystem.get_default();
this.iconAnimator = new PanelManager.IconAnimator(this.dtpPanel.panel);
this._signalsHandler.add(
[
this.dtpPanel.panel,
'notify::height',
() => this._queueRedisplay()
],
[
this.dtpPanel.panel,
'notify::width',
() => this._queueRedisplay()
],
[
this._appSystem,
'installed-changed',
() => {
AppFavorites.getAppFavorites().reload();
this._queueRedisplay();
}
],
[
this._appSystem,
'app-state-changed',
this._queueRedisplay.bind(this)
],
[
AppFavorites.getAppFavorites(),
'changed',
this._queueRedisplay.bind(this)
],
[
global.window_manager,
'switch-workspace',
() => this._connectWorkspaceSignals()
],
[
Utils.DisplayWrapper.getScreen(),
[
'window-entered-monitor',
'window-left-monitor'
],
() => {
if (Me.settings.get_boolean('isolate-monitors')) {
this._queueRedisplay();
}
}
],
[
Main.overview,
'item-drag-begin',
this._onDragBegin.bind(this)
],
[
Main.overview,
'item-drag-end',
this._onDragEnd.bind(this)
],
[
Main.overview,
'item-drag-cancelled',
this._onDragCancelled.bind(this)
],
[
// Ensure the ShowAppsButton status is kept in sync
SearchController._showAppsButton,
'notify::checked',
this._syncShowAppsButtonToggled.bind(this)
],
[
Me.settings,
[
'changed::show-favorites',
'changed::show-running-apps',
'changed::show-favorites-all-monitors'
],
() => {
setAttributes()
this._redisplay()
}
],
[
Me.settings,
'changed::group-apps',
() => {
setAttributes()
this._connectWorkspaceSignals();
}
],
[
Me.settings,
[
'changed::group-apps-use-launchers',
'changed::taskbar-locked'
],
() => {
setAttributes()
this.resetAppIcons()
}
],
[
adjustment,
[
'notify::upper',
'notify::pageSize'
],
() => this._onScrollSizeChange(adjustment)
]
);
let setAttributes = () => {
this.isGroupApps = Me.settings.get_boolean('group-apps');
this.usingLaunchers = !this.isGroupApps && Me.settings.get_boolean('group-apps-use-launchers');
this.showFavorites = Me.settings.get_boolean('show-favorites') &&
(this.dtpPanel.isPrimary || Me.settings.get_boolean('show-favorites-all-monitors'))
this.showRunningApps = Me.settings.get_boolean('show-running-apps')
this.allowSplitApps = this.usingLaunchers || (!this.isGroupApps && !this.showFavorites)
}
setAttributes()
this._onScrollSizeChange(adjustment);
this._connectWorkspaceSignals();
}
destroy() {
if (this._waitIdleId) {
GLib.source_remove(this._waitIdleId);
this._waitIdleId = 0;
}
this._timeoutsHandler.destroy();
this.iconAnimator.destroy();
this._signalsHandler.destroy();
this._signalsHandler = 0;
this._container.destroy();
this.previewMenu.disable();
this.previewMenu.destroy();
this._disconnectWorkspaceSignals();
}
_onScrollEvent(actor, event) {
let orientation = this.dtpPanel.getOrientation();
// reset timeout to avid conflicts with the mousehover event
this._timeoutsHandler.add([T1, 0,
() => this._swiping = false
]);
// Skip to avoid double events mouse
if (event.is_pointer_emulated())
return Clutter.EVENT_STOP;
let adjustment, delta;
adjustment = this._scrollView[orientation[0] + 'scroll'].get_adjustment();
let increment = adjustment.step_increment;
switch ( event.get_scroll_direction() ) {
case Clutter.ScrollDirection.UP:
case Clutter.ScrollDirection.LEFT:
delta = -increment;
break;
case Clutter.ScrollDirection.DOWN:
case Clutter.ScrollDirection.RIGHT:
delta = +increment;
break;
case Clutter.ScrollDirection.SMOOTH:
let [dx, dy] = event.get_scroll_delta();
delta = dy*increment;
delta += dx*increment;
break;
}
adjustment.set_value(adjustment.get_value() + delta);
return Clutter.EVENT_STOP;
}
_onScrollSizeChange(adjustment) {
// Update minimization animation target position on scrollview change.
this._updateAppIcons();
// When applications are ungrouped and there is some empty space on the horizontal taskbar,
// force a fixed label width to prevent the icons from "wiggling" when an animation runs
// (adding or removing an icon). When the taskbar is full, revert to a dynamic label width
// to allow them to resize and make room for new icons.
if (!this.dtpPanel.checkIfVertical() && !this.isGroupApps) {
let initial = this.fullScrollView;
if (!this.fullScrollView && Math.floor(adjustment.upper) > adjustment.page_size) {
this.fullScrollView = adjustment.page_size;
} else if (adjustment.page_size < this.fullScrollView) {
this.fullScrollView = 0;
}
if (initial != this.fullScrollView && !this._waitIdleId) {
this._waitIdleId = GLib.idle_add(GLib.PRIORITY_DEFAULT_IDLE, () => {
this._getAppIcons().forEach(a => a.updateTitleStyle())
this._waitIdleId = 0
});
}
}
}
_onDragBegin() {
this._dragCancelled = false;
this._dragMonitor = {
dragMotion: this._onDragMotion.bind(this)
};
DND.addDragMonitor(this._dragMonitor);
if (this._box.get_n_children() == 0) {
this._emptyDropTarget = new Dash.EmptyDropTargetItem();
this._box.insert_child_at_index(this._emptyDropTarget, 0);
this._emptyDropTarget.show(true);
}
this._toggleFavoriteHighlight(true);
}
_onDragCancelled() {
this._dragCancelled = true;
if (this._dragInfo) {
this._box.set_child_at_index(this._dragInfo[1]._dashItemContainer, this._dragInfo[0]);
}
this._endDrag();
}
_onDragEnd() {
if (this._dragCancelled)
return;
this._endDrag();
}
_endDrag() {
if (this._dragInfo && this._dragInfo[1]._dashItemContainer instanceof DragPlaceholderItem) {
this._box.remove_child(this._dragInfo[1]._dashItemContainer);
this._dragInfo[1]._dashItemContainer.destroy();
delete this._dragInfo[1]._dashItemContainer;
}
this._dragInfo = null;
this._clearEmptyDropTarget();
this._showAppsIcon.setDragApp(null);
DND.removeDragMonitor(this._dragMonitor);
this._dragMonitor = null;
this.emit('end-drag');
this._toggleFavoriteHighlight();
}
_onDragMotion(dragEvent) {
let app = Dash.getAppFromSource(dragEvent.source);
if (app == null)
return DND.DragMotionResult.CONTINUE;
let showAppsHovered = this._showAppsIcon.contains(dragEvent.targetActor);
if (showAppsHovered)
this._showAppsIcon.setDragApp(app);
else
this._showAppsIcon.setDragApp(null);
return DND.DragMotionResult.CONTINUE;
}
_toggleFavoriteHighlight(show) {
let appFavorites = AppFavorites.getAppFavorites();
let cssFuncName = (show ? 'add' : 'remove') + '_style_class_name';
if (this.showFavorites)
this._getAppIcons().filter(appIcon => (this.usingLaunchers && appIcon.isLauncher) ||
(!this.usingLaunchers && appFavorites.isFavorite(appIcon.app.get_id())))
.forEach(fav => fav._container[cssFuncName]('favorite'));
}
handleIsolatedWorkspaceSwitch() {
this._shownInitially = this.isGroupApps;
this._queueRedisplay();
}
_connectWorkspaceSignals() {
this._disconnectWorkspaceSignals();
this._lastWorkspace = Utils.DisplayWrapper.getWorkspaceManager().get_active_workspace();
this._workspaceWindowAddedId = this._lastWorkspace.connect('window-added', () => this._queueRedisplay());
this._workspaceWindowRemovedId = this._lastWorkspace.connect('window-removed', () => this._queueRedisplay());
}
_disconnectWorkspaceSignals() {
if (this._lastWorkspace) {
this._lastWorkspace.disconnect(this._workspaceWindowAddedId);
this._lastWorkspace.disconnect(this._workspaceWindowRemovedId);
this._lastWorkspace = null;
}
}
_queueRedisplay() {
Main.queueDeferredWork(this._workId);
}
_hookUpLabel(item, syncHandler) {
item.child.connect('notify::hover', () => {
this._syncLabel(item, syncHandler);
});
syncHandler.connect('sync-tooltip', () => {
this._syncLabel(item, syncHandler);
});
}
_createAppItem(app, window, isLauncher) {
let appIcon = new AppIcons.TaskbarAppIcon(
{
app,
window,
isLauncher
},
this.dtpPanel,
{
setSizeManually: true,
showLabel: false,
isDraggable: !Me.settings.get_boolean('taskbar-locked'),
},
this.previewMenu,
this.iconAnimator
);
if (appIcon._draggable) {
appIcon._draggable.connect('drag-begin',
() => {
appIcon.opacity = 0;
appIcon.isDragged = 1;
});
appIcon._draggable.connect('drag-end',
() => {
appIcon.opacity = 255;
delete appIcon.isDragged;
this._updateAppIcons();
});
}
appIcon.connect('menu-state-changed',
(appIcon, opened) => {
this._itemMenuStateChanged(item, opened);
});
let item = new TaskbarItemContainer();
item._dtpPanel = this.dtpPanel
extendDashItemContainer(item);
item.setChild(appIcon);
appIcon._dashItemContainer = item;
appIcon.connect('notify::hover', () => {
if (appIcon.hover){
this._timeoutsHandler.add([T1, 100,
() => Utils.ensureActorVisibleInScrollView(this._scrollView, appIcon, this._scrollView._dtpFadeSize)
])
} else {
this._timeoutsHandler.remove(T1)
}
});
appIcon.connect('clicked',
(actor) => {
Utils.ensureActorVisibleInScrollView(this._scrollView, actor, this._scrollView._dtpFadeSize);
});
appIcon.connect('key-focus-in', (actor) => {
let [x_shift, y_shift] = Utils.ensureActorVisibleInScrollView(this._scrollView, actor, this._scrollView._dtpFadeSize);
// This signal is triggered also by mouse click. The popup menu is opened at the original
// coordinates. Thus correct for the shift which is going to be applied to the scrollview.
if (appIcon._menu) {
appIcon._menu._boxPointer.xOffset = -x_shift;
appIcon._menu._boxPointer.yOffset = -y_shift;
}
});
// Override default AppIcon label_actor, now the
// accessible_name is set at DashItemContainer.setLabelText
appIcon.label_actor = null;
item.setLabelText(app.get_name());
appIcon.icon.setIconSize(this.iconSize);
this._hookUpLabel(item, appIcon);
return item;
}
// Return an array with the "proper" appIcons currently in the taskbar
_getAppIcons() {
// Only consider children which are "proper" icons and which are not
// animating out (which means they will be destroyed at the end of
// the animation)
return this._getTaskbarIcons().map(function(actor){
return actor.child._delegate;
});
}
_getTaskbarIcons(includeAnimated) {
return this._box.get_children().filter(function(actor) {
return actor.child &&
actor.child._delegate &&
actor.child._delegate.icon &&
(includeAnimated || !actor.animatingOut);
});
}
_updateAppIcons() {
let appIcons = this._getAppIcons();
appIcons.filter(icon => icon.constructor === AppIcons.TaskbarAppIcon).forEach(icon => {
icon.updateIcon();
});
}
_itemMenuStateChanged(item, opened) {
// When the menu closes, it calls sync_hover, which means
// that the notify::hover handler does everything we need to.
if (opened) {
this._timeoutsHandler.remove(T2)
item.hideLabel();
} else {
// I want to listen from outside when a menu is closed. I used to
// add a custom signal to the appIcon, since gnome 3.8 the signal
// calling this callback was added upstream.
this.emit('menu-closed');
}
}
_syncLabel(item, syncHandler) {
let shouldShow = syncHandler ? syncHandler.shouldShowTooltip() : item.child.get_hover();
if (shouldShow) {
if (!this._timeoutsHandler.getId(T2)) {
let timeout = this._labelShowing ? 0 : DASH_ITEM_HOVER_TIMEOUT;
this._timeoutsHandler.add([T2, timeout,
() => {
this._labelShowing = true;
item.showLabel();
}
]);
this._timeoutsHandler.remove(T3)
}
} else {
this._timeoutsHandler.remove(T2)
item.hideLabel();
if (this._labelShowing) {
this._timeoutsHandler.add([T3, DASH_ITEM_HOVER_TIMEOUT,
() => this._labelShowing = false
]);
}
}
}
_adjustIconSize() {
const thisMonitorIndex = this.dtpPanel.monitor.index;
let panelSize = PanelSettings.getPanelSize(Me.settings, thisMonitorIndex);
let availSize = panelSize - APPICON_PADDING * 2;
let minIconSize = MIN_ICON_SIZE + panelSize % 2;
if (availSize == this.iconSize)
return;
if (availSize < minIconSize) {
availSize = minIconSize;
}
// For the icon size, we only consider children which are "proper"
// icons and which are not animating out (which means they will be
// destroyed at the end of the animation)
let iconChildren = this._getTaskbarIcons().concat([this._showAppsIcon]);
let scale = this.iconSize / availSize;
this.iconSize = availSize;
for (let i = 0; i < iconChildren.length; i++) {
let icon = iconChildren[i].child._delegate.icon;
// Set the new size immediately, to keep the icons' sizes
// in sync with this.iconSize
icon.setIconSize(this.iconSize);
// Don't animate the icon size change when the overview
// is transitioning, or when initially filling
// the taskbar
if (Main.overview.animationInProgress ||
!this._shownInitially)
continue;
let [targetWidth, targetHeight] = icon.icon.get_size();
// Scale the icon's texture to the previous size and
// tween to the new size
icon.icon.set_size(icon.icon.width * scale, icon.icon.height * scale);
Utils.animate(icon.icon,
{ width: targetWidth,
height: targetHeight,
time: DASH_ANIMATION_TIME,
transition: 'easeOutQuad',
});
}
}
sortAppsCompareFunction(appA, appB) {
return getAppStableSequence(appA, this.dtpPanel.monitor) -
getAppStableSequence(appB, this.dtpPanel.monitor);
}
getAppInfos() {
//get the user's favorite apps
let favoriteApps = this.showFavorites ? AppFavorites.getAppFavorites().getFavorites() : [];
//find the apps that should be in the taskbar: the favorites first, then add the running apps
// When using isolation, we filter out apps that have no windows in
// the current workspace (this check is done in AppIcons.getInterestingWindows)
let runningApps = this.showRunningApps ? this._getRunningApps().sort(this.sortAppsCompareFunction.bind(this)) : [];
if (this.allowSplitApps) {
return this._createAppInfos(favoriteApps, [], true)
.concat(this._createAppInfos(runningApps)
.filter(appInfo => appInfo.windows.length));
} else {
return this._createAppInfos(favoriteApps.concat(runningApps.filter(app => favoriteApps.indexOf(app) < 0)))
.filter(appInfo => appInfo.windows.length || favoriteApps.indexOf(appInfo.app) >= 0);
}
}
_redisplay() {
if (!this._signalsHandler) {
return;
}
//get the currently displayed appIcons
let currentAppIcons = this._getTaskbarIcons();
let expectedAppInfos = this.getAppInfos();
//remove the appIcons which are not in the expected apps list
for (let i = currentAppIcons.length - 1; i > -1; --i) {
let appIcon = currentAppIcons[i].child._delegate;
let appIndex = Utils.findIndex(expectedAppInfos, appInfo => appInfo.app == appIcon.app &&
(!this.allowSplitApps || this.isGroupApps || appInfo.windows[0] == appIcon.window) &&
appInfo.isLauncher == appIcon.isLauncher);
if (appIndex < 0 ||
(appIcon.window && (this.isGroupApps || expectedAppInfos[appIndex].windows.indexOf(appIcon.window) < 0)) ||
(!appIcon.window && !appIcon.isLauncher &&
!this.isGroupApps && expectedAppInfos[appIndex].windows.length)) {
currentAppIcons[i][this._shownInitially ? 'animateOutAndDestroy' : 'destroy']();
currentAppIcons.splice(i, 1);
}
}
//if needed, reorder the existing appIcons and create the missing ones
let currentPosition = 0;
for (let i = 0, l = expectedAppInfos.length; i < l; ++i) {
let neededAppIcons = this.isGroupApps || !expectedAppInfos[i].windows.length ?
[{ app: expectedAppInfos[i].app, window: null, isLauncher: expectedAppInfos[i].isLauncher }] :
expectedAppInfos[i].windows.map(window => ({ app: expectedAppInfos[i].app, window: window, isLauncher: false }));
for (let j = 0, ll = neededAppIcons.length; j < ll; ++j) {
//check if the icon already exists
let matchingAppIconIndex = Utils.findIndex(currentAppIcons, appIcon => appIcon.child._delegate.app == neededAppIcons[j].app &&
appIcon.child._delegate.window == neededAppIcons[j].window);
if (matchingAppIconIndex > 0 && matchingAppIconIndex != currentPosition) {
//moved icon, reposition it
this._box.remove_child(currentAppIcons[matchingAppIconIndex]);
this._box.insert_child_at_index(currentAppIcons[matchingAppIconIndex], currentPosition);
} else if (matchingAppIconIndex < 0) {
//the icon doesn't exist yet, create a new one
let newAppIcon = this._createAppItem(neededAppIcons[j].app, neededAppIcons[j].window, neededAppIcons[j].isLauncher);
this._box.insert_child_at_index(newAppIcon, currentPosition);
currentAppIcons.splice(currentPosition, 0, newAppIcon);
// Skip animations on first run when adding the initial set
// of items, to avoid all items zooming in at once
newAppIcon.show(this._shownInitially);
}
++currentPosition;
}
}
this._adjustIconSize();
// Workaround for https://bugzilla.gnome.org/show_bug.cgi?id=692744
// Without it, StBoxLayout may use a stale size cache
this._box.queue_relayout();
// This is required for icon reordering when the scrollview is used.
this._updateAppIcons();
// This will update the size, and the corresponding number for each icon on the primary panel
if (this.dtpPanel.isPrimary) {
this._updateNumberOverlay();
}
this._shownInitially = true;
}
_getRunningApps() {
let tracker = Shell.WindowTracker.get_default();
let windows = global.get_window_actors();
let apps = [];
for (let i = 0, l = windows.length; i < l; ++i) {
let app = tracker.get_window_app(windows[i].metaWindow);
if (app && apps.indexOf(app) < 0) {
apps.push(app);
}
}
return apps;
}
_createAppInfos(apps, defaultWindows, defaultIsLauncher) {
if (this.allowSplitApps && !defaultIsLauncher) {
let separateApps = []
if (apps.length) {
let tracker = Shell.WindowTracker.get_default();
let windows = AppIcons.getInterestingWindows(null, this.dtpPanel.monitor)
.sort(sortWindowsCompareFunction)
windows.forEach(w => {
let windowApp = tracker.get_window_app(w)
if (apps.indexOf(windowApp) >= 0)
separateApps.push({
app: windowApp,
isLauncher: false,
windows: [w]
})
})
}
return separateApps
}
return apps.map(app => ({
app: app,
isLauncher: defaultIsLauncher || false,
windows: defaultWindows || AppIcons.getInterestingWindows(app, this.dtpPanel.monitor)
.sort(sortWindowsCompareFunction)
}));
}
// Reset the displayed apps icon to mantain the correct order
resetAppIcons (geometryChange) {
let children = this._getTaskbarIcons(true);
for (let i = 0; i < children.length; i++) {
let item = children[i];
item.destroy();
}
// to avoid ugly animations, just suppress them like when taskbar is first loaded.
this._shownInitially = false;
this._redisplay();
if (geometryChange && this.dtpPanel.checkIfVertical()) {
this.previewMenu._updateClip();
}
}
_updateNumberOverlay() {
let seenApps = {};
let counter = 0;
this._getAppIcons().forEach(icon => {
if (!seenApps[icon.app] || this.allowSplitApps) {
seenApps[icon.app] = 1;
counter++;
}
if (counter <= 10) {
icon.setNumberOverlay(counter == 10 ? 0 : counter);
} else {
// No overlay after 10
icon.setNumberOverlay(-1);
}
icon.updateHotkeyNumberOverlay();
});
if (Me.settings.get_boolean('hot-keys') &&
Me.settings.get_string('hotkeys-overlay-combo') === 'ALWAYS')
this.toggleNumberOverlay(true);
}
toggleNumberOverlay(activate) {
let appIcons = this._getAppIcons();
appIcons.forEach(function(icon) {
icon.toggleNumberOverlay(activate);
});
}
_clearEmptyDropTarget() {
if (this._emptyDropTarget) {
this._emptyDropTarget.animateOutAndDestroy();
this._emptyDropTarget = null;
}
}
handleDragOver(source, actor, x, y, time) {
if (source == Main.xdndHandler)
return DND.DragMotionResult.CONTINUE;
// Don't allow favoriting of transient apps
if (source.app == null || source.app.is_window_backed())
return DND.DragMotionResult.NO_DROP;
if (!this._settings.is_writable('favorite-apps'))
return DND.DragMotionResult.NO_DROP;
let isVertical = this.dtpPanel.checkIfVertical();
if (!this._box.contains(source) && !source._dashItemContainer) {
//not an appIcon of the taskbar, probably from the applications view
source._dashItemContainer = new DragPlaceholderItem(source, this.iconSize, isVertical);
this._box.insert_child_above(source._dashItemContainer, null);
}
let sizeProp = isVertical ? 'height' : 'width';
let posProp = isVertical ? 'y' : 'x';