1 files changed, 103 insertions, 0 deletions
diff --git a/extensions/46/middleclickclose/src/extension.js b/extensions/46/middleclickclose/src/extension.js
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+++ b/extensions/46/middleclickclose/src/extension.js
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+/* This extension is a derived work of the Gnome Shell.
+*
+* Copyright (c) 2013 Paolo Tranquilli
+*
+* This extension 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 extension 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 extension; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+import GLib from 'gi://GLib';
+import GObject from 'gi://GObject';
+
+import { Extension, InjectionManager } from 'resource:///org/gnome/shell/extensions/extension.js';
+import { Workspace } from 'resource:///org/gnome/shell/ui/workspace.js';
+
+import { SettingsWatch } from './settingsWatch.js';
+
+export default class MiddleClickClose extends Extension {
+	#settings;
+	#injectionManager;
+
+	enable() {
+		this.#settings = new SettingsWatch(this.getSettings(), {
+			close_button: { get: v => v.value, },
+			rearrange_delay: {},
+		});
+
+		this.#injectionManager = new InjectionManager();
+		this.#patchClickHandler();
+		this.#patchWindowRepositioningDelay();
+	}
+
+	disable() {
+		this.#injectionManager.clear();
+		this.#injectionManager = null;
+
+		this.#settings.clear();
+		this.#settings = null;
+	}
+
+	#patchClickHandler() {
+		// Patch _addWindowClone() to override the clicked signal handler for window clones (which
+		// is what gnome calls window previews).
+		const settings = this.#settings;
+		this.#injectionManager.overrideMethod(Workspace.prototype, '_addWindowClone',
+			original => function () {
+				let clone = original.apply(this, arguments);
+
+				// This relies on implementation details of both gnome and gobject. Mainly the order
+				// the clone's actions are defined and the order with which signal handlers are
+				// connected on the click action. Just pray this never breaks... Or that gnome moves
+				// the click handler into a named function. That'd be nice too :)
+				let [clickAction] = clone.get_actions();
+				let id = GObject.signal_handler_find(clickAction, { signalId: 'clicked' });
+				clickAction.disconnect(id);
+				clickAction.connect('clicked', action => {
+					if (action.get_button() == settings.close_button) {
+						clone._deleteAll();
+					} else {
+						clone._activate();
+					}
+				});
+
+				return clone;
+			}
+		);
+	}
+
+	#patchWindowRepositioningDelay() {
+		// It'd be nice to just change the WINDOW_REPOSITIONING_DELAY in workspace.js, but
+		// apparently that is impossible with the switch to ESM. Instead, we'll monkey-patch
+		// _doRemoveWindow() and change the timeout after the fact.
+		const settings = this.#settings;
+		const lastLayoutFrozenIds = new WeakMap();
+		this.#injectionManager.overrideMethod(Workspace.prototype, '_doRemoveWindow',
+			original => function () {
+				const ret = original.apply(this, arguments);
+
+				// Adjust the freeze delay.
+				if (this._layoutFrozenId > 0
+					&& this._layoutFrozenId != lastLayoutFrozenIds.get(this)
+				) {
+					const source = GLib.MainContext.default().find_source_by_id(this._layoutFrozenId);
+					source.set_ready_time(source.get_time() + settings.rearrange_delay * 1000);
+				}
+
+				// Need to keep the last id to avoid adjusting the layout freeze delay more than once.
+				lastLayoutFrozenIds.set(this, this._layoutFrozenId);
+
+				return ret;
+			})
+	}
+};