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/* exported AppSpread */
const { Atk, Clutter } = imports.gi;
const Main = imports.ui.main;
const SearchController = imports.ui.searchController;
const Workspace = imports.ui.workspace;
const WorkspaceThumbnail = imports.ui.workspaceThumbnail;
const Me = imports.misc.extensionUtils.getCurrentExtension();
const Utils = Me.imports.utils;
var AppSpread = class AppSpread {
constructor() {
this.app = null;
this.supported = true;
this.windows = [];
// fail early and do nothing, if mandatory gnome shell functions are missing
if (Main.overview.isDummy ||
!Workspace?.Workspace?.prototype._isOverviewWindow ||
!WorkspaceThumbnail?.WorkspaceThumbnail?.prototype._isOverviewWindow) {
log('Dash to dock: Unable to temporarily replace shell functions for app spread - using previews instead');
this.supported = false;
return;
}
this._signalHandlers = new Utils.GlobalSignalsHandler();
this._methodInjections = new Utils.InjectionsHandler();
this._vfuncInjections = new Utils.VFuncInjectionsHandler();
}
get isInAppSpread() {
return !!this.app;
}
destroy() {
if (!this.supported)
return;
this._hideAppSpread();
this._signalHandlers.destroy();
this._methodInjections.destroy();
this._vfuncInjections.destroy();
}
toggle(app) {
const newApp = this.app !== app;
if (this.app)
Main.overview.hide(); // also triggers hook 'hidden'
if (app && newApp)
this._showAppSpread(app);
}
_updateWindows() {
this.windows = this.app.get_windows();
}
_restoreDefaultWindows() {
const { workspaceManager } = global;
for (let i = 0; i < workspaceManager.nWorkspaces; i++) {
const metaWorkspace = workspaceManager.get_workspace_by_index(i);
metaWorkspace.list_windows().forEach(w => metaWorkspace.emit('window-added', w));
}
}
_filterWindows() {
const { workspaceManager } = global;
for (let i = 0; i < workspaceManager.nWorkspaces; i++) {
const metaWorkspace = workspaceManager.get_workspace_by_index(i);
metaWorkspace.list_windows().filter(w => !this.windows.includes(w)).forEach(
w => metaWorkspace.emit('window-removed', w));
}
}
_restoreDefaultOverview() {
this._hideAppSpread();
this._restoreDefaultWindows();
}
_showAppSpread(app) {
if (this.isInAppSpread)
return;
// Checked in overview "hide" event handler _hideAppSpread
this.app = app;
this._updateWindows();
// we need to hook into overview 'hidden' like this, in case app spread
// overview is hidden by choosing another app it should then do its
// cleanup too
this._signalHandlers.add(Main.overview, 'hidden', () => this._hideAppSpread());
const appSpread = this;
this._methodInjections.add([
// Filter workspaces to only show current app windows
Workspace.Workspace.prototype, '_isOverviewWindow',
function (originalMethod, window) {
const isOverviewWindow = originalMethod.call(this, window);
return isOverviewWindow && appSpread.windows.includes(window);
}
],
[
// Filter thumbnails to only show current app windows
WorkspaceThumbnail.WorkspaceThumbnail.prototype, '_isOverviewWindow',
function (originalMethod, windowActor) {
const isOverviewWindow = originalMethod.call(this, windowActor);
return isOverviewWindow && appSpread.windows.includes(windowActor.metaWindow);
}
]);
const activitiesButton = Main.panel.statusArea?.activities;
if (activitiesButton) {
this._signalHandlers.add(Main.overview, 'showing', () => {
activitiesButton.remove_style_pseudo_class('overview');
activitiesButton.remove_accessible_state(Atk.StateType.CHECKED);
});
this._vfuncInjections.add([
activitiesButton.constructor.prototype,
'event',
function (event) {
if (event.type() == Clutter.EventType.TOUCH_END ||
event.type() == Clutter.EventType.BUTTON_RELEASE) {
if (Main.overview.shouldToggleByCornerOrButton())
appSpread._restoreDefaultOverview();
}
return Clutter.EVENT_PROPAGATE;
}
],
[
activitiesButton.constructor.prototype,
'key_release_event',
function (keyEvent) {
const { keyval } = keyEvent;
if (keyval == Clutter.KEY_Return || keyval == Clutter.KEY_space) {
if (Main.overview.shouldToggleByCornerOrButton())
appSpread._restoreDefaultOverview();
}
return Clutter.EVENT_PROPAGATE;
}
]);
}
this._signalHandlers.add(Main.overview.dash.showAppsButton, 'notify::checked', () => {
if (Main.overview.dash.showAppsButton.checked)
this._restoreDefaultOverview();
});
// If closing windows in AppSpread, and only one window left:
// exit app spread and focus remaining window (handled in _hideAppSpread)
this._signalHandlers.add(this.app, 'windows-changed', () => {
this._updateWindows();
if (this.windows.length <= 1)
Main.overview.hide();
});
this._disableSearch();
Main.overview.show();
}
_hideAppSpread() {
if (!this.isInAppSpread)
return;
if (Main.overview.visible) {
Main.panel.statusArea?.activities.add_style_pseudo_class('overview');
Main.panel.statusArea?.activities.add_accessible_state(Atk.StateType.CHECKED);
}
// Restore original behaviour
this.app = null;
this._enableSearch();
this._methodInjections.clear();
this._signalHandlers.clear();
this._vfuncInjections.clear();
// Check reason for leaving AppSpread was closing app windows and only one window left...
if (this.windows.length === 1)
Main.activateWindow(this.windows[0]);
this.windows = [];
}
_disableSearch() {
if (!SearchController.SearchController.prototype._shouldTriggerSearch)
return;
if (Main.overview.searchEntry)
Main.overview.searchEntry.opacity = 0;
this._methodInjections.add(
SearchController.SearchController.prototype,
'_shouldTriggerSearch', () => false);
}
_enableSearch() {
if (Main.overview.searchEntry)
Main.overview.searchEntry.opacity = 255;
}
};
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