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Diffstat (limited to '')
| -rw-r--r-- | js/ui/environment.js | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/js/ui/environment.js b/js/ui/environment.js new file mode 100644 index 0000000..5790aa0 --- /dev/null +++ b/js/ui/environment.js @@ -0,0 +1,400 @@ +// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*- +/* exported init */ + +const Config = imports.misc.config; + +imports.gi.versions.Clutter = Config.LIBMUTTER_API_VERSION; +imports.gi.versions.Gio = '2.0'; +imports.gi.versions.GdkPixbuf = '2.0'; +imports.gi.versions.Gtk = '3.0'; +imports.gi.versions.Soup = '2.4'; +imports.gi.versions.TelepathyGLib = '0.12'; +imports.gi.versions.TelepathyLogger = '0.2'; + +const { Clutter, Gio, GLib, GObject, Meta, Polkit, Shell, St } = imports.gi; +const Gettext = imports.gettext; +const System = imports.system; + +Gio._promisify(Gio.DataInputStream.prototype, 'fill_async', 'fill_finish'); +Gio._promisify(Gio.DataInputStream.prototype, + 'read_line_async', 'read_line_finish'); +Gio._promisify(Gio.DBus, 'get', 'get_finish'); +Gio._promisify(Gio.DBusConnection.prototype, 'call', 'call_finish'); +Gio._promisify(Gio.DBusProxy, 'new', 'new_finish'); +Gio._promisify(Gio.DBusProxy.prototype, 'init_async', 'init_finish'); +Gio._promisify(Gio.DBusProxy.prototype, + 'call_with_unix_fd_list', 'call_with_unix_fd_list_finish'); +Gio._promisify(Polkit.Permission, 'new', 'new_finish'); + +let _localTimeZone = null; + +// We can't import shell JS modules yet, because they may have +// variable initializations, etc, that depend on init() already having +// been run. + + +// "monkey patch" in some varargs ClutterContainer methods; we need +// to do this per-container class since there is no representation +// of interfaces in Javascript +function _patchContainerClass(containerClass) { + // This one is a straightforward mapping of the C method + containerClass.prototype.child_set = function (actor, props) { + let meta = this.get_child_meta(actor); + for (let prop in props) + meta[prop] = props[prop]; + }; + + // clutter_container_add() actually is a an add-many-actors + // method. We conveniently, but somewhat dubiously, take the + // this opportunity to make it do something more useful. + containerClass.prototype.add = function (actor, props) { + this.add_actor(actor); + if (props) + this.child_set(actor, props); + }; +} + +function _patchLayoutClass(layoutClass, styleProps) { + if (styleProps) { + layoutClass.prototype.hookup_style = function (container) { + container.connect('style-changed', () => { + let node = container.get_theme_node(); + for (let prop in styleProps) { + let [found, length] = node.lookup_length(styleProps[prop], false); + if (found) + this[prop] = length; + } + }); + }; + } +} + +function _makeEaseCallback(params, cleanup) { + let onComplete = params.onComplete; + delete params.onComplete; + + let onStopped = params.onStopped; + delete params.onStopped; + + return isFinished => { + cleanup(); + + if (onStopped) + onStopped(isFinished); + if (onComplete && isFinished) + onComplete(); + }; +} + +function _getPropertyTarget(actor, propName) { + if (!propName.startsWith('@')) + return [actor, propName]; + + let [type, name, prop] = propName.split('.'); + switch (type) { + case '@layout': + return [actor.layout_manager, name]; + case '@actions': + return [actor.get_action(name), prop]; + case '@constraints': + return [actor.get_constraint(name), prop]; + case '@content': + return [actor.content, name]; + case '@effects': + return [actor.get_effect(name), prop]; + } + + throw new Error(`Invalid property name ${propName}`); +} + +function _easeActor(actor, params) { + actor.save_easing_state(); + + if (params.duration != undefined) + actor.set_easing_duration(params.duration); + delete params.duration; + + if (params.delay != undefined) + actor.set_easing_delay(params.delay); + delete params.delay; + + let repeatCount = 0; + if (params.repeatCount != undefined) + repeatCount = params.repeatCount; + delete params.repeatCount; + + let autoReverse = false; + if (params.autoReverse != undefined) + autoReverse = params.autoReverse; + delete params.autoReverse; + + // repeatCount doesn't include the initial iteration + const numIterations = repeatCount + 1; + // whether the transition should finish where it started + const isReversed = autoReverse && numIterations % 2 === 0; + + if (params.mode != undefined) + actor.set_easing_mode(params.mode); + delete params.mode; + + const prepare = () => { + Meta.disable_unredirect_for_display(global.display); + global.begin_work(); + }; + const cleanup = () => { + Meta.enable_unredirect_for_display(global.display); + global.end_work(); + }; + let callback = _makeEaseCallback(params, cleanup); + + // cancel overwritten transitions + let animatedProps = Object.keys(params).map(p => p.replace('_', '-', 'g')); + animatedProps.forEach(p => actor.remove_transition(p)); + + if (actor.get_easing_duration() > 0 || !isReversed) + actor.set(params); + actor.restore_easing_state(); + + let transition = animatedProps.map(p => actor.get_transition(p)) + .find(t => t !== null); + + if (transition && transition.delay) + transition.connect('started', () => prepare()); + else + prepare(); + + if (transition) { + transition.set({ repeatCount, autoReverse }); + transition.connect('stopped', (t, finished) => callback(finished)); + } else { + callback(true); + } +} + +function _easeActorProperty(actor, propName, target, params) { + // Avoid pointless difference with ease() + if (params.mode) + params.progress_mode = params.mode; + delete params.mode; + + if (params.duration) + params.duration = adjustAnimationTime(params.duration); + let duration = Math.floor(params.duration || 0); + + let repeatCount = 0; + if (params.repeatCount != undefined) + repeatCount = params.repeatCount; + delete params.repeatCount; + + let autoReverse = false; + if (params.autoReverse != undefined) + autoReverse = params.autoReverse; + delete params.autoReverse; + + // repeatCount doesn't include the initial iteration + const numIterations = repeatCount + 1; + // whether the transition should finish where it started + const isReversed = autoReverse && numIterations % 2 === 0; + + // Copy Clutter's behavior for implicit animations, see + // should_skip_implicit_transition() + if (actor instanceof Clutter.Actor && !actor.mapped) + duration = 0; + + const prepare = () => { + Meta.disable_unredirect_for_display(global.display); + global.begin_work(); + }; + const cleanup = () => { + Meta.enable_unredirect_for_display(global.display); + global.end_work(); + }; + let callback = _makeEaseCallback(params, cleanup); + + // cancel overwritten transition + actor.remove_transition(propName); + + if (duration == 0) { + let [obj, prop] = _getPropertyTarget(actor, propName); + + if (!isReversed) + obj[prop] = target; + + prepare(); + callback(true); + + return; + } + + let pspec = actor.find_property(propName); + let transition = new Clutter.PropertyTransition(Object.assign({ + property_name: propName, + interval: new Clutter.Interval({ value_type: pspec.value_type }), + remove_on_complete: true, + repeat_count: repeatCount, + auto_reverse: autoReverse, + }, params)); + actor.add_transition(propName, transition); + + transition.set_to(target); + + if (transition.delay) + transition.connect('started', () => prepare()); + else + prepare(); + + transition.connect('stopped', (t, finished) => callback(finished)); +} + +function _loggingFunc(...args) { + let fields = { 'MESSAGE': args.join(', ') }; + let domain = "GNOME Shell"; + + // If the caller is an extension, add it as metadata + let extension = imports.misc.extensionUtils.getCurrentExtension(); + if (extension != null) { + domain = extension.metadata.name; + fields['GNOME_SHELL_EXTENSION_UUID'] = extension.uuid; + fields['GNOME_SHELL_EXTENSION_NAME'] = extension.metadata.name; + } + + GLib.log_structured(domain, GLib.LogLevelFlags.LEVEL_MESSAGE, fields); +} + +function init() { + // Add some bindings to the global JS namespace + globalThis.global = Shell.Global.get(); + + globalThis.log = _loggingFunc; + + globalThis._ = Gettext.gettext; + globalThis.C_ = Gettext.pgettext; + globalThis.ngettext = Gettext.ngettext; + globalThis.N_ = s => s; + + GObject.gtypeNameBasedOnJSPath = true; + + // Miscellaneous monkeypatching + _patchContainerClass(St.BoxLayout); + + _patchLayoutClass(Clutter.GridLayout, { row_spacing: 'spacing-rows', + column_spacing: 'spacing-columns' }); + _patchLayoutClass(Clutter.BoxLayout, { spacing: 'spacing' }); + + let origSetEasingDuration = Clutter.Actor.prototype.set_easing_duration; + Clutter.Actor.prototype.set_easing_duration = function (msecs) { + origSetEasingDuration.call(this, adjustAnimationTime(msecs)); + }; + let origSetEasingDelay = Clutter.Actor.prototype.set_easing_delay; + Clutter.Actor.prototype.set_easing_delay = function (msecs) { + origSetEasingDelay.call(this, adjustAnimationTime(msecs)); + }; + + Clutter.Actor.prototype.ease = function (props) { + _easeActor(this, props); + }; + Clutter.Actor.prototype.ease_property = function (propName, target, params) { + _easeActorProperty(this, propName, target, params); + }; + St.Adjustment.prototype.ease = function (target, params) { + // we're not an actor of course, but we implement the same + // transition API as Clutter.Actor, so this works anyway + _easeActorProperty(this, 'value', target, params); + }; + + Clutter.Actor.prototype[Symbol.iterator] = function* () { + for (let c = this.get_first_child(); c; c = c.get_next_sibling()) + yield c; + }; + + Clutter.Actor.prototype.toString = function () { + return St.describe_actor(this); + }; + // Deprecation warning for former JS classes turned into an actor subclass + Object.defineProperty(Clutter.Actor.prototype, 'actor', { + get() { + let klass = this.constructor.name; + let { stack } = new Error(); + log(`Usage of object.actor is deprecated for ${klass}\n${stack}`); + return this; + }, + }); + + Gio._LocalFilePrototype.touch_async = function (callback) { + Shell.util_touch_file_async(this, callback); + }; + Gio._LocalFilePrototype.touch_finish = function (result) { + return Shell.util_touch_file_finish(this, result); + }; + + St.set_slow_down_factor = function (factor) { + let { stack } = new Error(); + log(`St.set_slow_down_factor() is deprecated, use St.Settings.slow_down_factor\n${stack}`); + St.Settings.get().slow_down_factor = factor; + }; + + let origToString = Object.prototype.toString; + Object.prototype.toString = function () { + let base = origToString.call(this); + try { + if ('actor' in this && this.actor instanceof Clutter.Actor) + return base.replace(/\]$/, ` delegate for ${this.actor.toString().substring(1)}`); + else + return base; + } catch (e) { + return base; + } + }; + + // Override to clear our own timezone cache as well + const origClearDateCaches = System.clearDateCaches; + System.clearDateCaches = function () { + _localTimeZone = null; + origClearDateCaches(); + }; + + // Work around https://bugzilla.mozilla.org/show_bug.cgi?id=508783 + Date.prototype.toLocaleFormat = function (format) { + if (_localTimeZone === null) + _localTimeZone = GLib.TimeZone.new_local(); + + let dt = GLib.DateTime.new(_localTimeZone, + this.getFullYear(), + this.getMonth() + 1, + this.getDate(), + this.getHours(), + this.getMinutes(), + this.getSeconds()); + return dt ? dt.format(format) : ''; + }; + + let slowdownEnv = GLib.getenv('GNOME_SHELL_SLOWDOWN_FACTOR'); + if (slowdownEnv) { + let factor = parseFloat(slowdownEnv); + if (!isNaN(factor) && factor > 0.0) + St.Settings.get().slow_down_factor = factor; + } + + // OK, now things are initialized enough that we can import shell JS + const Format = imports.format; + + String.prototype.format = Format.format; + + Math.clamp = function (x, lower, upper) { + return Math.min(Math.max(x, lower), upper); + }; +} + +// adjustAnimationTime: +// @msecs: time in milliseconds +// +// Adjust @msecs to account for St's enable-animations +// and slow-down-factor settings +function adjustAnimationTime(msecs) { + let settings = St.Settings.get(); + + if (!settings.enable_animations) + return 1; + return settings.slow_down_factor * msecs; +} + |