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Mini Shell
Mini Shell
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
import {
Clutter,
Gio,
GLib,
GObject,
Shell,
St,
} from './dependencies/gi.js';
import {
AppFavorites,
Dash,
DND,
Main,
} from './dependencies/shell/ui.js';
import {
Util,
} from './dependencies/shell/misc.js';
import {
AppIcons,
Docking,
Theming,
Utils,
} from './imports.js';
// module "Dash" does not export DASH_ANIMATION_TIME
// so we just define it like it is defined in Dash;
// taken from https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/main/js/ui/dash.js
const DASH_ANIMATION_TIME = 200;
const DASH_VISIBILITY_TIMEOUT = 3;
const Labels = Object.freeze({
SHOW_MOUNTS: Symbol('show-mounts'),
FIRST_LAST_CHILD_WORKAROUND: Symbol('first-last-child-workaround'),
});
/**
* Extend DashItemContainer
*
* - set label position based on dash orientation
*
*/
const DockDashItemContainer = GObject.registerClass(
class DockDashItemContainer extends Dash.DashItemContainer {
_init(position) {
super._init();
this.label?.add_style_class_name(Theming.PositionStyleClass[position]);
if (Docking.DockManager.settings.customThemeShrink)
this.label?.add_style_class_name('shrink');
}
showLabel() {
return AppIcons.itemShowLabel.call(this);
}
// we override the method show taken from:
// https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/main/js/ui/dash.js
// in order to apply a little modification at the end of the animation
// which makes sure that the icon background is not blurry
show(animate) {
if (this.child == null)
return;
this.ease({
scale_x: 1,
scale_y: 1,
opacity: 255,
duration: animate ? DASH_ANIMATION_TIME : 0,
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
onComplete: () => {
// when the animation is ended, we simulate
// a hover to gain back focus and unblur the
// background
this.set_hover(true);
},
});
}
});
const DockDashIconsVerticalLayout = GObject.registerClass(
class DockDashIconsVerticalLayout extends Clutter.BoxLayout {
_init() {
super._init({
orientation: Clutter.Orientation.VERTICAL,
});
}
vfunc_get_preferred_height(container, forWidth) {
const [natHeight] = super.vfunc_get_preferred_height(container, forWidth);
return [natHeight, 0];
}
});
const baseIconSizes = [16, 22, 24, 32, 48, 64, 96, 128];
/**
* 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
* - hide showApps label when the custom menu is shown.
* - add scrollview
* ensure actor is visible on keyfocus inseid the scrollview
* - add 128px icon size, might be useful for hidpi display
* - sync minimization application target position.
* - keep running apps ordered.
*/
export const DockDash = GObject.registerClass({
Properties: {
'requires-visibility': GObject.ParamSpec.boolean(
'requires-visibility', 'requires-visibility', 'requires-visibility',
GObject.ParamFlags.READWRITE,
false),
},
Signals: {
'menu-opened': {},
'menu-closed': {},
'icon-size-changed': {},
},
}, class DockDash extends St.Widget {
_init(monitorIndex) {
// Initialize icon variables and size
super._init({
name: 'dash',
offscreen_redirect: Clutter.OffscreenRedirect.ALWAYS,
layout_manager: new Clutter.BinLayout(),
});
this._maxWidth = -1;
this._maxHeight = -1;
this.iconSize = Docking.DockManager.settings.dashMaxIconSize;
this._availableIconSizes = baseIconSizes;
this._shownInitially = false;
this._initializeIconSize(this.iconSize);
this._signalsHandler = new Utils.GlobalSignalsHandler(this);
this._separator = null;
this._monitorIndex = monitorIndex;
this._position = Utils.getPosition();
this._isHorizontal = (this._position === St.Side.TOP) ||
(this._position === St.Side.BOTTOM);
this._dragPlaceholder = null;
this._dragPlaceholderPos = -1;
this._animatingPlaceholdersCount = 0;
this._showLabelTimeoutId = 0;
this._resetHoverTimeoutId = 0;
this._labelShowing = false;
this._dashContainer = new St.BoxLayout({
name: 'dashtodockDashContainer',
x_align: Clutter.ActorAlign.CENTER,
y_align: Clutter.ActorAlign.CENTER,
vertical: !this._isHorizontal,
y_expand: this._isHorizontal,
x_expand: !this._isHorizontal,
});
this._scrollView = new St.ScrollView({
name: 'dashtodockDashScrollview',
hscrollbar_policy: this._isHorizontal ? St.PolicyType.EXTERNAL : St.PolicyType.NEVER,
vscrollbar_policy: this._isHorizontal ? St.PolicyType.NEVER : St.PolicyType.EXTERNAL,
x_expand: this._isHorizontal,
y_expand: !this._isHorizontal,
enable_mouse_scrolling: false,
});
this._scrollView.connect('scroll-event', this._onScrollEvent.bind(this));
this._boxContainer = new St.BoxLayout({
name: 'dashtodockBoxContainer',
x_align: Clutter.ActorAlign.FILL,
y_align: Clutter.ActorAlign.FILL,
vertical: !this._isHorizontal,
});
this._boxContainer.add_style_class_name(Theming.PositionStyleClass[this._position]);
const rtl = Clutter.get_default_text_direction() === Clutter.TextDirection.RTL;
this._box = new St.BoxLayout({
vertical: !this._isHorizontal,
clip_to_allocation: false,
...!this._isHorizontal ? {layout_manager: new DockDashIconsVerticalLayout()} : {},
x_align: rtl ? Clutter.ActorAlign.END : Clutter.ActorAlign.START,
y_align: this._isHorizontal ? Clutter.ActorAlign.CENTER : Clutter.ActorAlign.START,
y_expand: !this._isHorizontal,
x_expand: this._isHorizontal,
});
this._box._delegate = this;
this._boxContainer.add_child(this._box);
if (this._scrollView.add_actor)
this._scrollView.add_actor(this._boxContainer);
else
this._scrollView.add_child(this._boxContainer);
this._dashContainer.add_child(this._scrollView);
this._showAppsIcon = new AppIcons.DockShowAppsIcon(this._position);
this._showAppsIcon.show(false);
this._showAppsIcon.icon.setIconSize(this.iconSize);
this._showAppsIcon.x_expand = false;
this._showAppsIcon.y_expand = false;
this.showAppsButton.connect('notify::hover', a => {
if (this._showAppsIcon.get_parent() === this._boxContainer)
this._ensureItemVisibility(a);
});
if (!this._isHorizontal)
this._showAppsIcon.y_align = Clutter.ActorAlign.START;
this._hookUpLabel(this._showAppsIcon);
this._showAppsIcon.connect('menu-state-changed', (_icon, opened) => {
this._itemMenuStateChanged(this._showAppsIcon, opened);
});
this.updateShowAppsButton();
this._background = new St.Widget({
style_class: 'dash-background',
y_expand: this._isHorizontal,
x_expand: !this._isHorizontal,
});
const sizerBox = new Clutter.Actor();
sizerBox.add_constraint(new Clutter.BindConstraint({
source: this._isHorizontal ? this._showAppsIcon.icon : this._dashContainer,
coordinate: Clutter.BindCoordinate.HEIGHT,
}));
sizerBox.add_constraint(new Clutter.BindConstraint({
source: this._isHorizontal ? this._dashContainer : this._showAppsIcon.icon,
coordinate: Clutter.BindCoordinate.WIDTH,
}));
this._background.add_child(sizerBox);
this.add_child(this._background);
this.add_child(this._dashContainer);
this._workId = Main.initializeDeferredWork(this._box, this._redisplay.bind(this));
this._shellSettings = new Gio.Settings({
schema_id: 'org.gnome.shell',
});
this._appSystem = Shell.AppSystem.get_default();
this.iconAnimator = new Docking.IconAnimator(this);
this._signalsHandler.add([
this._appSystem,
'installed-changed',
() => {
AppFavorites.getAppFavorites().reload();
this._queueRedisplay();
},
], [
AppFavorites.getAppFavorites(),
'changed',
this._queueRedisplay.bind(this),
], [
this._appSystem,
'app-state-changed',
this._queueRedisplay.bind(this),
], [
Main.overview,
'item-drag-begin',
this._onItemDragBegin.bind(this),
], [
Main.overview,
'item-drag-end',
this._onItemDragEnd.bind(this),
], [
Main.overview,
'item-drag-cancelled',
this._onItemDragCancelled.bind(this),
], [
Main.overview,
'window-drag-begin',
this._onWindowDragBegin.bind(this),
], [
Main.overview,
'window-drag-cancelled',
this._onWindowDragEnd.bind(this),
], [
Main.overview,
'window-drag-end',
this._onWindowDragEnd.bind(this),
]);
this.connect('destroy', this._onDestroy.bind(this));
}
vfunc_get_preferred_height(forWidth) {
const [minHeight, natHeight] = super.vfunc_get_preferred_height.call(this, forWidth);
if (!this._isHorizontal && this._maxHeight !== -1 && natHeight > this._maxHeight)
return [minHeight, this._maxHeight];
else
return [minHeight, natHeight];
}
vfunc_get_preferred_width(forHeight) {
const [minWidth, natWidth] = super.vfunc_get_preferred_width.call(this, forHeight);
if (this._isHorizontal && this._maxWidth !== -1 && natWidth > this._maxWidth)
return [minWidth, this._maxWidth];
else
return [minWidth, natWidth];
}
get _container() {
return this._dashContainer;
}
_onDestroy() {
this.iconAnimator.destroy();
if (this._requiresVisibilityTimeout) {
GLib.source_remove(this._requiresVisibilityTimeout);
delete this._requiresVisibilityTimeout;
}
if (this._ensureActorVisibilityTimeoutId) {
GLib.source_remove(this._ensureActorVisibilityTimeoutId);
delete this._ensureActorVisibilityTimeoutId;
}
}
_onItemDragBegin(...args) {
return Dash.Dash.prototype._onItemDragBegin.call(this, ...args);
}
_onItemDragCancelled(...args) {
return Dash.Dash.prototype._onItemDragCancelled.call(this, ...args);
}
_onItemDragEnd(...args) {
return Dash.Dash.prototype._onItemDragEnd.call(this, ...args);
}
_endItemDrag(...args) {
return Dash.Dash.prototype._endItemDrag.call(this, ...args);
}
_onItemDragMotion(...args) {
return Dash.Dash.prototype._onItemDragMotion.call(this, ...args);
}
_appIdListToHash(...args) {
return Dash.Dash.prototype._appIdListToHash.call(this, ...args);
}
_queueRedisplay(...args) {
return Dash.Dash.prototype._queueRedisplay.call(this, ...args);
}
_hookUpLabel(...args) {
return Dash.Dash.prototype._hookUpLabel.call(this, ...args);
}
_syncLabel(...args) {
return Dash.Dash.prototype._syncLabel.call(this, ...args);
}
_clearDragPlaceholder(...args) {
return Dash.Dash.prototype._clearDragPlaceholder.call(this, ...args);
}
_clearEmptyDropTarget(...args) {
return Dash.Dash.prototype._clearEmptyDropTarget.call(this, ...args);
}
handleDragOver(source, actor, x, y, time) {
let ret;
if (this._isHorizontal) {
ret = Dash.Dash.prototype.handleDragOver.call(this, source, actor, x, y, time);
if (ret === DND.DragMotionResult.CONTINUE)
return ret;
} else {
const propertyInjections = new Utils.PropertyInjectionsHandler();
propertyInjections.add(this._box, 'width', {
get: () => this._box.get_children().reduce((a, c) => a + c.height, 0),
});
if (this._dragPlaceholder) {
propertyInjections.add(this._dragPlaceholder, 'width', {
get: () => this._dragPlaceholder.height,
});
}
ret = Dash.Dash.prototype.handleDragOver.call(this, source, actor, y, x, time);
propertyInjections.destroy();
if (ret === DND.DragMotionResult.CONTINUE)
return ret;
if (this._dragPlaceholder) {
this._dragPlaceholder.child.set_width(this.iconSize / 2);
this._dragPlaceholder.child.set_height(this.iconSize);
let pos = this._dragPlaceholderPos;
if (this._isHorizontal &&
Clutter.get_default_text_direction() === Clutter.TextDirection.RTL)
pos = this._box.get_children() - 1 - pos;
if (pos !== this._dragPlaceholderPos) {
this._dragPlaceholderPos = pos;
this._box.set_child_at_index(this._dragPlaceholder,
this._dragPlaceholderPos);
}
}
}
if (this._dragPlaceholder) {
// Ensure the next and previous icon are visible when moving the
// placeholder (we're assuming there's room for both of them)
const children = this._box.get_children();
if (this._dragPlaceholderPos > 0) {
ensureActorVisibleInScrollView(this._scrollView,
children[this._dragPlaceholderPos - 1]);
}
if (this._dragPlaceholderPos >= -1 &&
this._dragPlaceholderPos < children.length - 1) {
ensureActorVisibleInScrollView(this._scrollView,
children[this._dragPlaceholderPos + 1]);
}
}
return ret;
}
acceptDrop(...args) {
return Dash.Dash.prototype.acceptDrop.call(this, ...args);
}
_onWindowDragBegin(...args) {
return Dash.Dash.prototype._onWindowDragBegin.call(this, ...args);
}
_onWindowDragEnd(...args) {
return Dash.Dash.prototype._onWindowDragEnd.call(this, ...args);
}
_onScrollEvent(actor, event) {
// If scroll is not used because the icon is resized, let the scroll event propagate.
if (!Docking.DockManager.settings.iconSizeFixed)
return Clutter.EVENT_PROPAGATE;
// reset timeout to avid conflicts with the mousehover event
this._ensureItemVisibility(null);
// Skip to avoid double events mouse
// TODO: Horizontal events are emulated, potentially due to a conflict
// with the workspace switching gesture.
if (!this._isHorizontal && event.is_pointer_emulated())
return Clutter.EVENT_STOP;
let adjustment, delta = 0;
if (this._isHorizontal)
adjustment = this._scrollView.get_hscroll_bar().get_adjustment();
else
adjustment = this._scrollView.get_vscroll_bar().get_adjustment();
const increment = adjustment.step_increment;
if (this._isHorizontal) {
switch (event.get_scroll_direction()) {
case Clutter.ScrollDirection.LEFT:
delta = -increment;
break;
case Clutter.ScrollDirection.RIGHT:
delta = Number(increment);
break;
case Clutter.ScrollDirection.SMOOTH: {
const [dx] = event.get_scroll_delta();
delta = dx * increment;
break;
}
}
} else {
switch (event.get_scroll_direction()) {
case Clutter.ScrollDirection.UP:
delta = -increment;
break;
case Clutter.ScrollDirection.DOWN:
delta = Number(increment);
break;
case Clutter.ScrollDirection.SMOOTH: {
const [, dy] = event.get_scroll_delta();
delta = dy * increment;
break;
}
}
}
const value = adjustment.get_value();
// TODO: Remove this if possible.
if (Number.isNaN(value))
adjustment.set_value(delta);
else
adjustment.set_value(value + delta);
return Clutter.EVENT_STOP;
}
_ensureItemVisibility(actor) {
if (actor?.hover) {
const destroyId =
actor.connect('destroy', () => this._ensureItemVisibility(null));
this._ensureActorVisibilityTimeoutId = GLib.timeout_add(
GLib.PRIORITY_DEFAULT, 100, () => {
actor.disconnect(destroyId);
ensureActorVisibleInScrollView(this._scrollView, actor);
this._ensureActorVisibilityTimeoutId = 0;
return GLib.SOURCE_REMOVE;
});
} else if (this._ensureActorVisibilityTimeoutId) {
GLib.source_remove(this._ensureActorVisibilityTimeoutId);
this._ensureActorVisibilityTimeoutId = 0;
}
}
_createAppItem(app) {
const appIcon = new AppIcons.makeAppIcon(app, this._monitorIndex, this.iconAnimator);
if (appIcon._draggable) {
appIcon._draggable.connect('drag-begin', () => {
appIcon.opacity = 50;
});
appIcon._draggable.connect('drag-end', () => {
appIcon.opacity = 255;
});
}
appIcon.connect('menu-state-changed', (_, opened) => {
this._itemMenuStateChanged(item, opened);
});
const item = new DockDashItemContainer(this._position);
item.setChild(appIcon);
appIcon.connect('notify::hover', a => this._ensureItemVisibility(a));
appIcon.connect('clicked', actor => {
ensureActorVisibleInScrollView(this._scrollView, actor);
});
appIcon.connect('key-focus-in', actor => {
const [xShift, yShift] = ensureActorVisibleInScrollView(this._scrollView, actor);
// 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 = -xShift;
appIcon._menu._boxPointer.yOffset = -yShift;
}
});
appIcon.connect('notify::focused', () => {
const {settings} = Docking.DockManager;
if (appIcon.focused && settings.scrollToFocusedApplication)
ensureActorVisibleInScrollView(this._scrollView, item);
});
appIcon.connect('notify::urgent', () => {
if (appIcon.urgent) {
ensureActorVisibleInScrollView(this._scrollView, item);
if (Docking.DockManager.settings.showDockUrgentNotify)
this._requireVisibility();
}
});
// 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);
item.connect('notify::position', () => appIcon.updateIconGeometry());
item.connect('notify::size', () => appIcon.updateIconGeometry());
return item;
}
_requireVisibility() {
this.requiresVisibility = true;
if (this._requiresVisibilityTimeout)
GLib.source_remove(this._requiresVisibilityTimeout);
this._requiresVisibilityTimeout = GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT,
DASH_VISIBILITY_TIMEOUT, () => {
this._requiresVisibilityTimeout = 0;
this.requiresVisibility = false;
});
}
/**
* Return an array with the "proper" appIcons currently in the dash
*/
getAppIcons() {
// Only consider children which are "proper"
// icons (i.e. ignoring drag placeholders) and which are not
// animating out (which means they will be destroyed at the end of
// the animation)
const iconChildren = this._box.get_children().filter(actor => {
return actor.child &&
!!actor.child.icon &&
!actor.animatingOut;
});
const appIcons = iconChildren.map(actor => {
return actor.child;
});
return appIcons;
}
_itemMenuStateChanged(item, opened) {
Dash.Dash.prototype._itemMenuStateChanged.call(this, item, opened);
if (opened) {
this.emit('menu-opened');
} 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');
}
}
_adjustIconSize() {
// For the icon size, we only consider children which are "proper"
// icons (i.e. ignoring drag placeholders) and which are not
// animating out (which means they will be destroyed at the end of
// the animation)
const iconChildren = this._box.get_children().filter(actor => {
return actor.child &&
actor.child._delegate &&
actor.child._delegate.icon &&
!actor.animatingOut;
});
iconChildren.push(this._showAppsIcon);
if (this._maxWidth === -1 && this._maxHeight === -1)
return;
// Check if the container is present in the stage. This avoids critical
// errors when unlocking the screen
if (!this._container.get_stage())
return;
const themeNode = this._dashContainer.get_theme_node();
const maxAllocation = new Clutter.ActorBox({
x1: 0,
y1: 0,
x2: this._isHorizontal ? this._maxWidth : 42 /* whatever */,
y2: this._isHorizontal ? 42 : this._maxHeight,
});
const maxContent = themeNode.get_content_box(maxAllocation);
let availSpace;
if (this._isHorizontal)
availSpace = maxContent.get_width();
else
availSpace = maxContent.get_height();
const spacing = themeNode.get_length('spacing');
const [{child: firstButton}] = iconChildren;
const {child: firstIcon} = firstButton?.icon ?? {child: null};
// if no icons there's nothing to adjust
if (!firstIcon)
return;
// Enforce valid spacings during the size request
firstIcon.ensure_style();
const [, , iconWidth, iconHeight] = firstIcon.get_preferred_size();
const [, , buttonWidth, buttonHeight] = firstButton.get_preferred_size();
if (this._isHorizontal) {
// Subtract icon padding and box spacing from the available width
availSpace -= iconChildren.length * (buttonWidth - iconWidth) +
(iconChildren.length - 1) * spacing;
if (this._separator) {
const [, , separatorWidth] = this._separator.get_preferred_size();
availSpace -= separatorWidth + spacing;
}
} else {
// Subtract icon padding and box spacing from the available height
availSpace -= iconChildren.length * (buttonHeight - iconHeight) +
(iconChildren.length - 1) * spacing;
if (this._separator) {
const [, , , separatorHeight] = this._separator.get_preferred_size();
availSpace -= separatorHeight + spacing;
}
}
const maxIconSize = availSpace / iconChildren.length;
const {scaleFactor} = St.ThemeContext.get_for_stage(global.stage);
const iconSizes = this._availableIconSizes.map(s => s * scaleFactor);
let [newIconSize] = this._availableIconSizes;
for (let i = 0; i < iconSizes.length; i++) {
if (iconSizes[i] <= maxIconSize)
newIconSize = this._availableIconSizes[i];
}
if (newIconSize === this.iconSize)
return;
const oldIconSize = this.iconSize;
this.iconSize = newIconSize;
this.emit('icon-size-changed');
const scale = oldIconSize / newIconSize;
for (let i = 0; i < iconChildren.length; i++) {
const {icon} = iconChildren[i].child._delegate;
// 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, not visible or when initially filling
// the dash
if (!Main.overview.visible || Main.overview.animationInProgress ||
!this._shownInitially)
continue;
const [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);
icon.icon.ease({
width: targetWidth,
height: targetHeight,
duration: DASH_ANIMATION_TIME,
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
});
}
if (this._separator) {
const animateProperties = this._isHorizontal
? {height: this.iconSize} : {width: this.iconSize};
this._separator.ease({
...animateProperties,
duration: DASH_ANIMATION_TIME,
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
});
}
}
_redisplay() {
const favorites = AppFavorites.getAppFavorites().getFavoriteMap();
let running = this._appSystem.get_running();
const dockManager = Docking.DockManager.getDefault();
const {settings} = dockManager;
this._scrollView.set({
xAlign: Clutter.ActorAlign.FILL,
yAlign: Clutter.ActorAlign.FILL,
});
if (dockManager.settings.dockExtended) {
if (!this._isHorizontal) {
this._scrollView.yAlign = dockManager.settings.alwaysCenterIcons
? Clutter.ActorAlign.CENTER : Clutter.ActorAlign.START;
} else {
this._scrollView.xAlign = dockManager.settings.alwaysCenterIcons
? Clutter.ActorAlign.CENTER : Clutter.ActorAlign.START;
}
}
if (settings.isolateWorkspaces ||
settings.isolateMonitors) {
// When using isolation, we filter out apps that have no windows in
// the current workspace
const monitorIndex = this._monitorIndex;
running = running.filter(app =>
AppIcons.getInterestingWindows(app.get_windows(), monitorIndex).length);
}
const children = this._box.get_children().filter(actor => {
return actor.child &&
actor.child._delegate &&
actor.child._delegate.app;
});
// Apps currently in the dash
let oldApps = children.map(actor => actor.child._delegate.app);
// Apps supposed to be in the dash
const newApps = [];
const {showFavorites} = settings;
if (showFavorites)
newApps.push(...Object.values(favorites));
if (settings.showRunning) {
// We reorder the running apps so that they don't change position on the
// dash with every redisplay() call
// First: add the apps from the oldApps list that are still running
oldApps.forEach(oldApp => {
const index = running.indexOf(oldApp);
if (index > -1) {
const [app] = running.splice(index, 1);
if (!showFavorites || !(app.get_id() in favorites))
newApps.push(app);
}
});
// Second: add the new apps
running.forEach(app => {
if (!showFavorites || !(app.get_id() in favorites))
newApps.push(app);
});
}
this._signalsHandler.removeWithLabel(Labels.SHOW_MOUNTS);
if (dockManager.removables) {
this._signalsHandler.addWithLabel(Labels.SHOW_MOUNTS,
dockManager.removables, 'changed', this._queueRedisplay.bind(this));
dockManager.removables.getApps().forEach(removable => {
if (!newApps.includes(removable))
newApps.push(removable);
});
} else {
oldApps = oldApps.filter(app => !app.location || app.isTrash);
}
if (dockManager.trash) {
const trashApp = dockManager.trash.getApp();
if (!newApps.includes(trashApp))
newApps.push(trashApp);
} else {
oldApps = oldApps.filter(app => !app.isTrash);
}
// Temporary remove the separator so that we don't compute to position icons
const oldSeparatorPos = this._box.get_children().indexOf(this._separator);
if (this._separator)
this._box.remove_child(this._separator);
// Figure out the actual changes to the list of items; we iterate
// over both the list of items currently in the dash and the list
// of items expected there, and collect additions and removals.
// Moves are both an addition and a removal, where the order of
// the operations depends on whether we encounter the position
// where the item has been added first or the one from where it
// was removed.
// There is an assumption that only one item is moved at a given
// time; when moving several items at once, everything will still
// end up at the right position, but there might be additional
// additions/removals (e.g. it might remove all the launchers
// and add them back in the new order even if a smaller set of
// additions and removals is possible).
// If above assumptions turns out to be a problem, we might need
// to use a more sophisticated algorithm, e.g. Longest Common
// Subsequence as used by diff.
const addedItems = [];
const removedActors = [];
let newIndex = 0;
let oldIndex = 0;
while (newIndex < newApps.length || oldIndex < oldApps.length) {
const oldApp = oldApps.length > oldIndex ? oldApps[oldIndex] : null;
const newApp = newApps.length > newIndex ? newApps[newIndex] : null;
// No change at oldIndex/newIndex
if (oldApp === newApp) {
oldIndex++;
newIndex++;
continue;
}
// App removed at oldIndex
if (oldApp && !newApps.includes(oldApp)) {
removedActors.push(children[oldIndex]);
oldIndex++;
continue;
}
// App added at newIndex
if (newApp && !oldApps.includes(newApp)) {
addedItems.push({
app: newApp,
item: this._createAppItem(newApp),
pos: newIndex,
});
newIndex++;
continue;
}
// App moved
const nextApp = newApps.length > newIndex + 1
? newApps[newIndex + 1] : null;
const insertHere = nextApp && nextApp === oldApp;
const alreadyRemoved = removedActors.reduce((result, actor) => {
const removedApp = actor.child._delegate.app;
return result || removedApp === newApp;
}, false);
if (insertHere || alreadyRemoved) {
const newItem = this._createAppItem(newApp);
addedItems.push({
app: newApp,
item: newItem,
pos: newIndex + removedActors.length,
});
newIndex++;
} else {
removedActors.push(children[oldIndex]);
oldIndex++;
}
}
for (let i = 0; i < addedItems.length; i++) {
this._box.insert_child_at_index(addedItems[i].item,
addedItems[i].pos);
}
for (let i = 0; i < removedActors.length; i++) {
const item = removedActors[i];
// Don't animate item removal when the overview is transitioning
// or hidden
if (!Main.overview.animationInProgress)
item.animateOutAndDestroy();
else
item.destroy();
}
// Update separator
const nFavorites = Object.keys(favorites).length;
const nIcons = children.length + addedItems.length - removedActors.length;
if (nFavorites > 0 && nFavorites < nIcons) {
if (!this._separator) {
this._separator = new St.Widget({
style_class: 'dash-separator',
x_align: this._isHorizontal
? Clutter.ActorAlign.FILL : Clutter.ActorAlign.CENTER,
y_align: this._isHorizontal
? Clutter.ActorAlign.CENTER : Clutter.ActorAlign.FILL,
width: this._isHorizontal ? -1 : this.iconSize,
height: this._isHorizontal ? this.iconSize : -1,
reactive: true,
track_hover: true,
});
this._separator.connect('notify::hover', a => this._ensureItemVisibility(a));
}
let pos = nFavorites + this._animatingPlaceholdersCount;
if (this._dragPlaceholder)
pos++;
const removedFavorites = removedActors.filter(a =>
children.indexOf(a) < oldSeparatorPos);
pos += removedFavorites.length;
this._box.insert_child_at_index(this._separator, pos);
} else if (this._separator) {
this._separator.destroy();
this._separator = null;
}
this._adjustIconSize();
// Skip animations on first run when adding the initial set
// of items, to avoid all items zooming in at once
const animate = this._shownInitially &&
!Main.layoutManager._startingUp;
if (!this._shownInitially)
this._shownInitially = true;
addedItems.forEach(({item}) => item.show(animate));
// 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 will update the size, and the corresponding number for each icon
this._updateNumberOverlay();
this.updateShowAppsButton();
}
_updateNumberOverlay() {
const appIcons = this.getAppIcons();
let counter = 1;
appIcons.forEach(icon => {
if (counter < 10) {
icon.setNumberOverlay(counter);
counter++;
} else if (counter === 10) {
icon.setNumberOverlay(0);
counter++;
} else {
// No overlay after 10
icon.setNumberOverlay(-1);
}
icon.updateNumberOverlay();
});
}
toggleNumberOverlay(activate) {
const appIcons = this.getAppIcons();
appIcons.forEach(icon => {
icon.toggleNumberOverlay(activate);
});
}
_initializeIconSize(maxSize) {
const maxAllowed = baseIconSizes[baseIconSizes.length - 1];
maxSize = Math.min(maxSize, maxAllowed);
if (Docking.DockManager.settings.iconSizeFixed) {
this._availableIconSizes = [maxSize];
} else {
this._availableIconSizes = baseIconSizes.filter(val => {
return val < maxSize;
});
this._availableIconSizes.push(maxSize);
}
}
setIconSize(maxSize, doNotAnimate) {
this._initializeIconSize(maxSize);
if (doNotAnimate)
this._shownInitially = false;
this._queueRedisplay();
}
/**
* Reset the displayed apps icon to maintain the correct order when changing
* show favorites/show running settings
*/
resetAppIcons() {
const children = this._box.get_children().filter(actor => {
return actor.child &&
!!actor.child.icon;
});
for (let i = 0; i < children.length; i++) {
const item = children[i];
item.destroy();
}
// to avoid ugly animations, just suppress them like when dash is first loaded.
this._shownInitially = false;
this._redisplay();
}
get showAppsButton() {
return this._showAppsIcon.toggleButton;
}
showShowAppsButton() {
this._showAppsIcon.visible = true;
this._showAppsIcon.show(true);
this.updateShowAppsButton();
}
hideShowAppsButton() {
this._showAppsIcon.visible = false;
}
setMaxSize(maxWidth, maxHeight) {
if (this._maxWidth === maxWidth &&
this._maxHeight === maxHeight)
return;
this._maxWidth = maxWidth;
this._maxHeight = maxHeight;
this._queueRedisplay();
}
updateShowAppsButton() {
if (this._showAppsIcon.get_parent() && !this._showAppsIcon.visible)
return;
const {settings} = Docking.DockManager;
const notifiedProperties = [];
const showAppsContainer = settings.showAppsAlwaysInTheEdge || !settings.dockExtended
? this._dashContainer : this._boxContainer;
this._signalsHandler.addWithLabel(Labels.FIRST_LAST_CHILD_WORKAROUND,
showAppsContainer, 'notify',
(_obj, pspec) => notifiedProperties.push(pspec.name));
if (this._showAppsIcon.get_parent() !== showAppsContainer) {
this._showAppsIcon.get_parent()?.remove_child(this._showAppsIcon);
if (Docking.DockManager.settings.showAppsAtTop)
showAppsContainer.insert_child_below(this._showAppsIcon, null);
else
showAppsContainer.insert_child_above(this._showAppsIcon, null);
} else if (settings.showAppsAtTop) {
showAppsContainer.set_child_below_sibling(this._showAppsIcon, null);
} else {
showAppsContainer.set_child_above_sibling(this._showAppsIcon, null);
}
this._signalsHandler.removeWithLabel(Labels.FIRST_LAST_CHILD_WORKAROUND);
// This is indeed ugly, but we need to ensure that the last and first
// visible widgets are re-computed by St, that is buggy because of a
// mutter issue that is being fixed:
// https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2047
if (!notifiedProperties.includes('first-child'))
showAppsContainer.notify('first-child');
if (!notifiedProperties.includes('last-child'))
showAppsContainer.notify('last-child');
}
});
/**
* This is a copy of the same function in utils.js, but also adjust horizontal scrolling
* and perform few further checks on the current value to avoid changing the values when
* it would be clamp to the current one in any case.
* Return the amount of shift applied
*
* @param scrollView
* @param actor
*/
function ensureActorVisibleInScrollView(scrollView, actor) {
// access to scrollView.[hv]scroll was deprecated in gnome 46
// instead, adjustment can be accessed directly
// keep old way for backwards compatibility (gnome <= 45)
const vAdjustment = scrollView.vadjustment ?? scrollView.vscroll.adjustment;
const hAdjustment = scrollView.hadjustment ?? scrollView.hscroll.adjustment;
const {value: vValue0, pageSize: vPageSize, upper: vUpper} = vAdjustment;
const {value: hValue0, pageSize: hPageSize, upper: hUpper} = hAdjustment;
let [hValue, vValue] = [hValue0, vValue0];
let vOffset = 0;
let hOffset = 0;
const fade = scrollView.get_effect('fade');
if (fade) {
vOffset = fade.fade_margins.top;
hOffset = fade.fade_margins.left;
}
const box = actor.get_allocation_box();
let {y1} = box, {y2} = box, {x1} = box, {x2} = box;
let parent = actor.get_parent();
while (parent !== scrollView) {
if (!parent)
throw new Error('Actor not in scroll view');
const parentBox = parent.get_allocation_box();
y1 += parentBox.y1;
y2 += parentBox.y1;
x1 += parentBox.x1;
x2 += parentBox.x1;
parent = parent.get_parent();
}
if (y1 < vValue + vOffset)
vValue = Math.max(0, y1 - vOffset);
else if (vValue < vUpper - vPageSize && y2 > vValue + vPageSize - vOffset)
vValue = Math.min(vUpper - vPageSize, y2 + vOffset - vPageSize);
if (x1 < hValue + hOffset)
hValue = Math.max(0, x1 - hOffset);
else if (hValue < hUpper - hPageSize && x2 > hValue + hPageSize - hOffset)
hValue = Math.min(hUpper - hPageSize, x2 + hOffset - hPageSize);
if (vValue !== vValue0) {
vAdjustment.ease(vValue, {
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
duration: Util.SCROLL_TIME,
});
}
if (hValue !== hValue0) {
hAdjustment.ease(hValue, {
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
duration: Util.SCROLL_TIME,
});
}
return [hValue - hValue0, vValue - vValue0];
}
Zerion Mini Shell 1.0