7059e31f6a
Background is monitoring the whole `org.gnome.desktop.background` gsettings keys for changes connecting to the non-specialized 'changed' signal and re-emitting this as-is. This means that when the background is changed via control-center, we get multiple 'changed' signal events from GSettings, and for each one of this we recreate a Background and a BackgroundActor. Avoid this by using an idle to delay the emission of the 'changed' signal grouping the events. https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/558
789 lines
28 KiB
JavaScript
789 lines
28 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
|
|
|
|
// READ THIS FIRST
|
|
// Background handling is a maze of objects, both objects in this file, and
|
|
// also objects inside Mutter. They all have a role.
|
|
//
|
|
// BackgroundManager
|
|
// The only object that other parts of GNOME Shell deal with; a
|
|
// BackgroundManager creates background actors and adds them to
|
|
// the specified container. When the background is changed by the
|
|
// user it will fade out the old actor and fade in the new actor.
|
|
// (This is separate from the fading for an animated background,
|
|
// since using two actors is quite inefficient.)
|
|
//
|
|
// MetaBackgroundImage
|
|
// An object represented an image file that will be used for drawing
|
|
// the background. MetaBackgroundImage objects asynchronously load,
|
|
// so they are first created in an unloaded state, then later emit
|
|
// a ::loaded signal when the Cogl object becomes available.
|
|
//
|
|
// MetaBackgroundImageCache
|
|
// A cache from filename to MetaBackgroundImage.
|
|
//
|
|
// BackgroundSource
|
|
// An object that is created for each GSettings schema (separate
|
|
// settings schemas are used for the lock screen and main background),
|
|
// and holds a reference to shared Background objects.
|
|
//
|
|
// MetaBackground
|
|
// Holds the specification of a background - a background color
|
|
// or gradient and one or two images blended together.
|
|
//
|
|
// Background
|
|
// JS delegate object that Connects a MetaBackground to the GSettings
|
|
// schema for the background.
|
|
//
|
|
// Animation
|
|
// A helper object that handles loading a XML-based animation; it is a
|
|
// wrapper for GnomeDesktop.BGSlideShow
|
|
//
|
|
// MetaBackgroundActor
|
|
// An actor that draws the background for a single monitor
|
|
//
|
|
// BackgroundCache
|
|
// A cache of Settings schema => BackgroundSource and of a single Animation.
|
|
// Also used to share file monitors.
|
|
//
|
|
// A static image, background color or gradient is relatively straightforward. The
|
|
// calling code creates a separate BackgroundManager for each monitor. Since they
|
|
// are created for the same GSettings schema, they will use the same BackgroundSource
|
|
// object, which provides a single Background and correspondingly a single
|
|
// MetaBackground object.
|
|
//
|
|
// BackgroundManager BackgroundManager
|
|
// | \ / |
|
|
// | BackgroundSource | looked up in BackgroundCache
|
|
// | | |
|
|
// | Background |
|
|
// | | |
|
|
// MetaBackgroundActor | MetaBackgroundActor
|
|
// \ | /
|
|
// `------- MetaBackground ------'
|
|
// |
|
|
// MetaBackgroundImage looked up in MetaBackgroundImageCache
|
|
//
|
|
// The animated case is tricker because the animation XML file can specify different
|
|
// files for different monitor resolutions and aspect ratios. For this reason,
|
|
// the BackgroundSource provides different Background share a single Animation object,
|
|
// which tracks the animation, but use different MetaBackground objects. In the
|
|
// common case, the different MetaBackground objects will be created for the
|
|
// same filename and look up the *same* MetaBackgroundImage object, so there is
|
|
// little wasted memory:
|
|
//
|
|
// BackgroundManager BackgroundManager
|
|
// | \ / |
|
|
// | BackgroundSource | looked up in BackgroundCache
|
|
// | / \ |
|
|
// | Background Background |
|
|
// | | \ / | |
|
|
// | | Animation | | looked up in BackgroundCache
|
|
// MetaBackgroundA|tor Me|aBackgroundActor
|
|
// \ | | /
|
|
// MetaBackground MetaBackground
|
|
// \ /
|
|
// MetaBackgroundImage looked up in MetaBackgroundImageCache
|
|
// MetaBackgroundImage
|
|
//
|
|
// But the case of different filenames and different background images
|
|
// is possible as well:
|
|
// ....
|
|
// MetaBackground MetaBackground
|
|
// | |
|
|
// MetaBackgroundImage MetaBackgroundImage
|
|
// MetaBackgroundImage MetaBackgroundImage
|
|
|
|
const { Clutter, GDesktopEnums, Gio, GLib, GnomeDesktop, Meta } = imports.gi;
|
|
const Signals = imports.signals;
|
|
|
|
const LoginManager = imports.misc.loginManager;
|
|
const Main = imports.ui.main;
|
|
const Params = imports.misc.params;
|
|
const Tweener = imports.ui.tweener;
|
|
|
|
var DEFAULT_BACKGROUND_COLOR = Clutter.Color.from_pixel(0x2e3436ff);
|
|
|
|
const BACKGROUND_SCHEMA = 'org.gnome.desktop.background';
|
|
const PRIMARY_COLOR_KEY = 'primary-color';
|
|
const SECONDARY_COLOR_KEY = 'secondary-color';
|
|
const COLOR_SHADING_TYPE_KEY = 'color-shading-type';
|
|
const BACKGROUND_STYLE_KEY = 'picture-options';
|
|
const PICTURE_OPACITY_KEY = 'picture-opacity';
|
|
const PICTURE_URI_KEY = 'picture-uri';
|
|
|
|
var FADE_ANIMATION_TIME = 1.0;
|
|
|
|
// These parameters affect how often we redraw.
|
|
// The first is how different (percent crossfaded) the slide show
|
|
// has to look before redrawing and the second is the minimum
|
|
// frequency (in seconds) we're willing to wake up
|
|
var ANIMATION_OPACITY_STEP_INCREMENT = 4.0;
|
|
var ANIMATION_MIN_WAKEUP_INTERVAL = 1.0;
|
|
|
|
let _backgroundCache = null;
|
|
|
|
function _fileEqual0(file1, file2) {
|
|
if (file1 == file2)
|
|
return true;
|
|
|
|
if (!file1 || !file2)
|
|
return false;
|
|
|
|
return file1.equal(file2);
|
|
}
|
|
|
|
var BackgroundCache = class BackgroundCache {
|
|
constructor() {
|
|
this._fileMonitors = {};
|
|
this._backgroundSources = {};
|
|
this._animations = {};
|
|
}
|
|
|
|
monitorFile(file) {
|
|
let key = file.hash();
|
|
if (this._fileMonitors[key])
|
|
return;
|
|
|
|
let monitor = file.monitor(Gio.FileMonitorFlags.NONE, null);
|
|
monitor.connect('changed',
|
|
(obj, file, otherFile, eventType) => {
|
|
// Ignore CHANGED and CREATED events, since in both cases
|
|
// we'll get a CHANGES_DONE_HINT event when done.
|
|
if (eventType != Gio.FileMonitorEvent.CHANGED &&
|
|
eventType != Gio.FileMonitorEvent.CREATED)
|
|
this.emit('file-changed', file);
|
|
});
|
|
|
|
this._fileMonitors[key] = monitor;
|
|
}
|
|
|
|
getAnimation(params) {
|
|
params = Params.parse(params, { file: null,
|
|
settingsSchema: null,
|
|
onLoaded: null });
|
|
|
|
let animation = this._animations[params.settingsSchema];
|
|
if (animation && _fileEqual0(animation.file, params.file)) {
|
|
if (params.onLoaded) {
|
|
let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
|
|
params.onLoaded(this._animations[params.settingsSchema]);
|
|
return GLib.SOURCE_REMOVE;
|
|
});
|
|
GLib.Source.set_name_by_id(id, '[gnome-shell] params.onLoaded');
|
|
}
|
|
return;
|
|
}
|
|
|
|
animation = new Animation({ file: params.file });
|
|
|
|
animation.load(() => {
|
|
this._animations[params.settingsSchema] = animation;
|
|
|
|
if (params.onLoaded) {
|
|
let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
|
|
params.onLoaded(this._animations[params.settingsSchema]);
|
|
return GLib.SOURCE_REMOVE;
|
|
});
|
|
GLib.Source.set_name_by_id(id, '[gnome-shell] params.onLoaded');
|
|
}
|
|
});
|
|
}
|
|
|
|
getBackgroundSource(layoutManager, settingsSchema) {
|
|
// The layoutManager is always the same one; we pass in it since
|
|
// Main.layoutManager may not be set yet
|
|
|
|
if (!(settingsSchema in this._backgroundSources)) {
|
|
this._backgroundSources[settingsSchema] = new BackgroundSource(layoutManager, settingsSchema);
|
|
this._backgroundSources[settingsSchema]._useCount = 1;
|
|
} else {
|
|
this._backgroundSources[settingsSchema]._useCount++;
|
|
}
|
|
|
|
return this._backgroundSources[settingsSchema];
|
|
}
|
|
|
|
releaseBackgroundSource(settingsSchema) {
|
|
if (settingsSchema in this._backgroundSources) {
|
|
let source = this._backgroundSources[settingsSchema];
|
|
source._useCount--;
|
|
if (source._useCount == 0) {
|
|
delete this._backgroundSources[settingsSchema];
|
|
source.destroy();
|
|
}
|
|
}
|
|
}
|
|
};
|
|
Signals.addSignalMethods(BackgroundCache.prototype);
|
|
|
|
function getBackgroundCache() {
|
|
if (!_backgroundCache)
|
|
_backgroundCache = new BackgroundCache();
|
|
return _backgroundCache;
|
|
}
|
|
|
|
var Background = class Background {
|
|
constructor(params) {
|
|
params = Params.parse(params, { monitorIndex: 0,
|
|
layoutManager: Main.layoutManager,
|
|
settings: null,
|
|
file: null,
|
|
style: null });
|
|
|
|
this.background = new Meta.Background({ meta_display: global.display });
|
|
this.background._delegate = this;
|
|
|
|
this._settings = params.settings;
|
|
this._file = params.file;
|
|
this._style = params.style;
|
|
this._monitorIndex = params.monitorIndex;
|
|
this._layoutManager = params.layoutManager;
|
|
this._fileWatches = {};
|
|
this._cancellable = new Gio.Cancellable();
|
|
this.isLoaded = false;
|
|
|
|
this._clock = new GnomeDesktop.WallClock();
|
|
this._timezoneChangedId = this._clock.connect('notify::timezone',
|
|
() => {
|
|
if (this._animation)
|
|
this._loadAnimation(this._animation.file);
|
|
});
|
|
|
|
let loginManager = LoginManager.getLoginManager();
|
|
this._prepareForSleepId = loginManager.connect('prepare-for-sleep',
|
|
(lm, aboutToSuspend) => {
|
|
if (aboutToSuspend)
|
|
return;
|
|
this._refreshAnimation();
|
|
});
|
|
|
|
this._settingsChangedSignalId =
|
|
this._settings.connect('changed', this._emitChangedSignal.bind(this));
|
|
|
|
this._load();
|
|
}
|
|
|
|
destroy() {
|
|
this.background = null;
|
|
|
|
this._cancellable.cancel();
|
|
this._removeAnimationTimeout();
|
|
|
|
let i;
|
|
let keys = Object.keys(this._fileWatches);
|
|
for (i = 0; i < keys.length; i++) {
|
|
this._cache.disconnect(this._fileWatches[keys[i]]);
|
|
}
|
|
this._fileWatches = null;
|
|
|
|
if (this._timezoneChangedId != 0)
|
|
this._clock.disconnect(this._timezoneChangedId);
|
|
this._timezoneChangedId = 0;
|
|
|
|
this._clock = null;
|
|
|
|
if (this._prepareForSleepId != 0)
|
|
LoginManager.getLoginManager().disconnect(this._prepareForSleepId);
|
|
this._prepareForSleepId = 0;
|
|
|
|
if (this._settingsChangedSignalId != 0)
|
|
this._settings.disconnect(this._settingsChangedSignalId);
|
|
this._settingsChangedSignalId = 0;
|
|
|
|
if (this._changedIdleId) {
|
|
GLib.source_remove(this._changedIdleId);
|
|
this._changedIdleId = 0;
|
|
}
|
|
}
|
|
|
|
_emitChangedSignal() {
|
|
if (this._changedIdleId)
|
|
return;
|
|
|
|
this._changedIdleId = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
|
|
this._changedIdleId = 0;
|
|
this.emit('changed');
|
|
return GLib.SOURCE_REMOVE;
|
|
});
|
|
}
|
|
|
|
updateResolution() {
|
|
if (this._animation)
|
|
this._refreshAnimation();
|
|
}
|
|
|
|
_refreshAnimation() {
|
|
if (!this._animation)
|
|
return;
|
|
|
|
this._removeAnimationTimeout();
|
|
this._updateAnimation();
|
|
}
|
|
|
|
_setLoaded() {
|
|
if (this.isLoaded)
|
|
return;
|
|
|
|
this.isLoaded = true;
|
|
|
|
let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
|
|
this.emit('loaded');
|
|
return GLib.SOURCE_REMOVE;
|
|
});
|
|
GLib.Source.set_name_by_id(id, '[gnome-shell] this.emit');
|
|
}
|
|
|
|
_loadPattern() {
|
|
let colorString, res, color, secondColor;
|
|
|
|
colorString = this._settings.get_string(PRIMARY_COLOR_KEY);
|
|
[res, color] = Clutter.Color.from_string(colorString);
|
|
colorString = this._settings.get_string(SECONDARY_COLOR_KEY);
|
|
[res, secondColor] = Clutter.Color.from_string(colorString);
|
|
|
|
let shadingType = this._settings.get_enum(COLOR_SHADING_TYPE_KEY);
|
|
|
|
if (shadingType == GDesktopEnums.BackgroundShading.SOLID)
|
|
this.background.set_color(color);
|
|
else
|
|
this.background.set_gradient(shadingType, color, secondColor);
|
|
}
|
|
|
|
_watchFile(file) {
|
|
let key = file.hash();
|
|
if (this._fileWatches[key])
|
|
return;
|
|
|
|
this._cache.monitorFile(file);
|
|
let signalId = this._cache.connect('file-changed',
|
|
(cache, changedFile) => {
|
|
if (changedFile.equal(file)) {
|
|
let imageCache = Meta.BackgroundImageCache.get_default();
|
|
imageCache.purge(changedFile);
|
|
this._emitChangedSignal();
|
|
}
|
|
});
|
|
this._fileWatches[key] = signalId;
|
|
}
|
|
|
|
_removeAnimationTimeout() {
|
|
if (this._updateAnimationTimeoutId) {
|
|
GLib.source_remove(this._updateAnimationTimeoutId);
|
|
this._updateAnimationTimeoutId = 0;
|
|
}
|
|
}
|
|
|
|
_updateAnimation() {
|
|
this._updateAnimationTimeoutId = 0;
|
|
|
|
this._animation.update(this._layoutManager.monitors[this._monitorIndex]);
|
|
let files = this._animation.keyFrameFiles;
|
|
|
|
let finish = () => {
|
|
this._setLoaded();
|
|
if (files.length > 1) {
|
|
this.background.set_blend(files[0], files[1],
|
|
this._animation.transitionProgress,
|
|
this._style);
|
|
} else if (files.length > 0) {
|
|
this.background.set_file(files[0], this._style);
|
|
} else {
|
|
this.background.set_file(null, this._style);
|
|
}
|
|
this._queueUpdateAnimation();
|
|
};
|
|
|
|
let cache = Meta.BackgroundImageCache.get_default();
|
|
let numPendingImages = files.length;
|
|
for (let i = 0; i < files.length; i++) {
|
|
this._watchFile(files[i]);
|
|
let image = cache.load(files[i]);
|
|
if (image.is_loaded()) {
|
|
numPendingImages--;
|
|
if (numPendingImages == 0)
|
|
finish();
|
|
} else {
|
|
let id = image.connect('loaded', () => {
|
|
image.disconnect(id);
|
|
numPendingImages--;
|
|
if (numPendingImages == 0)
|
|
finish();
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
_queueUpdateAnimation() {
|
|
if (this._updateAnimationTimeoutId != 0)
|
|
return;
|
|
|
|
if (!this._cancellable || this._cancellable.is_cancelled())
|
|
return;
|
|
|
|
if (!this._animation.transitionDuration)
|
|
return;
|
|
|
|
let nSteps = 255 / ANIMATION_OPACITY_STEP_INCREMENT;
|
|
let timePerStep = (this._animation.transitionDuration * 1000) / nSteps;
|
|
|
|
let interval = Math.max(ANIMATION_MIN_WAKEUP_INTERVAL * 1000,
|
|
timePerStep);
|
|
|
|
if (interval > GLib.MAXUINT32)
|
|
return;
|
|
|
|
this._updateAnimationTimeoutId = GLib.timeout_add(GLib.PRIORITY_DEFAULT,
|
|
interval,
|
|
() => {
|
|
this._updateAnimationTimeoutId = 0;
|
|
this._updateAnimation();
|
|
return GLib.SOURCE_REMOVE;
|
|
});
|
|
GLib.Source.set_name_by_id(this._updateAnimationTimeoutId, '[gnome-shell] this._updateAnimation');
|
|
}
|
|
|
|
_loadAnimation(file) {
|
|
this._cache.getAnimation({ file: file,
|
|
settingsSchema: this._settings.schema_id,
|
|
onLoaded: animation => {
|
|
this._animation = animation;
|
|
|
|
if (!this._animation || this._cancellable.is_cancelled()) {
|
|
this._setLoaded();
|
|
return;
|
|
}
|
|
|
|
this._updateAnimation();
|
|
this._watchFile(file);
|
|
}
|
|
});
|
|
}
|
|
|
|
_loadImage(file) {
|
|
this.background.set_file(file, this._style);
|
|
this._watchFile(file);
|
|
|
|
let cache = Meta.BackgroundImageCache.get_default();
|
|
let image = cache.load(file);
|
|
if (image.is_loaded())
|
|
this._setLoaded();
|
|
else {
|
|
let id = image.connect('loaded', () => {
|
|
this._setLoaded();
|
|
image.disconnect(id);
|
|
});
|
|
}
|
|
}
|
|
|
|
_loadFile(file) {
|
|
if (file.get_basename().endsWith('.xml'))
|
|
this._loadAnimation(file);
|
|
else
|
|
this._loadImage(file);
|
|
}
|
|
|
|
_load() {
|
|
this._cache = getBackgroundCache();
|
|
|
|
this._loadPattern();
|
|
|
|
if (!this._file) {
|
|
this._setLoaded();
|
|
return;
|
|
}
|
|
|
|
this._loadFile(this._file);
|
|
}
|
|
};
|
|
Signals.addSignalMethods(Background.prototype);
|
|
|
|
let _systemBackground;
|
|
|
|
var SystemBackground = class SystemBackground {
|
|
constructor() {
|
|
let file = Gio.File.new_for_uri('resource:///org/gnome/shell/theme/noise-texture.png');
|
|
|
|
if (_systemBackground == null) {
|
|
_systemBackground = new Meta.Background({ meta_display: global.display });
|
|
_systemBackground.set_color(DEFAULT_BACKGROUND_COLOR);
|
|
_systemBackground.set_file(file, GDesktopEnums.BackgroundStyle.WALLPAPER);
|
|
}
|
|
|
|
this.actor = new Meta.BackgroundActor({ meta_display: global.display,
|
|
monitor: 0,
|
|
background: _systemBackground });
|
|
|
|
let cache = Meta.BackgroundImageCache.get_default();
|
|
let image = cache.load(file);
|
|
if (image.is_loaded()) {
|
|
image = null;
|
|
let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
|
|
this.emit('loaded');
|
|
return GLib.SOURCE_REMOVE;
|
|
});
|
|
GLib.Source.set_name_by_id(id, '[gnome-shell] SystemBackground.loaded');
|
|
} else {
|
|
let id = image.connect('loaded', () => {
|
|
this.emit('loaded');
|
|
image.disconnect(id);
|
|
image = null;
|
|
});
|
|
}
|
|
}
|
|
};
|
|
Signals.addSignalMethods(SystemBackground.prototype);
|
|
|
|
var BackgroundSource = class BackgroundSource {
|
|
constructor(layoutManager, settingsSchema) {
|
|
// Allow override the background image setting for performance testing
|
|
this._layoutManager = layoutManager;
|
|
this._overrideImage = GLib.getenv('SHELL_BACKGROUND_IMAGE');
|
|
this._settings = new Gio.Settings({ schema_id: settingsSchema });
|
|
this._backgrounds = [];
|
|
|
|
let monitorManager = Meta.MonitorManager.get();
|
|
this._monitorsChangedId =
|
|
monitorManager.connect('monitors-changed',
|
|
this._onMonitorsChanged.bind(this));
|
|
}
|
|
|
|
_onMonitorsChanged() {
|
|
for (let monitorIndex in this._backgrounds) {
|
|
let background = this._backgrounds[monitorIndex];
|
|
|
|
if (monitorIndex < this._layoutManager.monitors.length) {
|
|
background.updateResolution();
|
|
} else {
|
|
background.disconnect(background._changedId);
|
|
background.destroy();
|
|
delete this._backgrounds[monitorIndex];
|
|
}
|
|
}
|
|
}
|
|
|
|
getBackground(monitorIndex) {
|
|
let file = null;
|
|
let style;
|
|
|
|
// We don't watch changes to settings here,
|
|
// instead we rely on Background to watch those
|
|
// and emit 'changed' at the right time
|
|
|
|
if (this._overrideImage != null) {
|
|
file = Gio.File.new_for_path(this._overrideImage);
|
|
style = GDesktopEnums.BackgroundStyle.ZOOM; // Hardcode
|
|
} else {
|
|
style = this._settings.get_enum(BACKGROUND_STYLE_KEY);
|
|
if (style != GDesktopEnums.BackgroundStyle.NONE) {
|
|
let uri = this._settings.get_string(PICTURE_URI_KEY);
|
|
file = Gio.File.new_for_commandline_arg(uri);
|
|
}
|
|
}
|
|
|
|
// Animated backgrounds are (potentially) per-monitor, since
|
|
// they can have variants that depend on the aspect ratio and
|
|
// size of the monitor; for other backgrounds we can use the
|
|
// same background object for all monitors.
|
|
if (file == null || !file.get_basename().endsWith('.xml'))
|
|
monitorIndex = 0;
|
|
|
|
if (!(monitorIndex in this._backgrounds)) {
|
|
let background = new Background({
|
|
monitorIndex: monitorIndex,
|
|
layoutManager: this._layoutManager,
|
|
settings: this._settings,
|
|
file: file,
|
|
style: style
|
|
});
|
|
|
|
background._changedId = background.connect('changed', () => {
|
|
background.disconnect(background._changedId);
|
|
background.destroy();
|
|
delete this._backgrounds[monitorIndex];
|
|
});
|
|
|
|
this._backgrounds[monitorIndex] = background;
|
|
}
|
|
|
|
return this._backgrounds[monitorIndex];
|
|
}
|
|
|
|
destroy() {
|
|
let monitorManager = Meta.MonitorManager.get();
|
|
monitorManager.disconnect(this._monitorsChangedId);
|
|
|
|
for (let monitorIndex in this._backgrounds) {
|
|
let background = this._backgrounds[monitorIndex];
|
|
background.disconnect(background._changedId);
|
|
background.destroy();
|
|
}
|
|
|
|
this._backgrounds = null;
|
|
}
|
|
};
|
|
|
|
var Animation = class Animation {
|
|
constructor(params) {
|
|
params = Params.parse(params, { file: null });
|
|
|
|
this.file = params.file;
|
|
this.keyFrameFiles = [];
|
|
this.transitionProgress = 0.0;
|
|
this.transitionDuration = 0.0;
|
|
this.loaded = false;
|
|
}
|
|
|
|
load(callback) {
|
|
this._show = new GnomeDesktop.BGSlideShow({ filename: this.file.get_path() });
|
|
|
|
this._show.load_async(null, (object, result) => {
|
|
this.loaded = true;
|
|
if (callback)
|
|
callback();
|
|
});
|
|
}
|
|
|
|
update(monitor) {
|
|
this.keyFrameFiles = [];
|
|
|
|
if (!this._show)
|
|
return;
|
|
|
|
if (this._show.get_num_slides() < 1)
|
|
return;
|
|
|
|
let [progress, duration, isFixed, filename1, filename2] = this._show.get_current_slide(monitor.width, monitor.height);
|
|
|
|
this.transitionDuration = duration;
|
|
this.transitionProgress = progress;
|
|
|
|
if (filename1)
|
|
this.keyFrameFiles.push(Gio.File.new_for_path(filename1));
|
|
|
|
if (filename2)
|
|
this.keyFrameFiles.push(Gio.File.new_for_path(filename2));
|
|
}
|
|
};
|
|
Signals.addSignalMethods(Animation.prototype);
|
|
|
|
var BackgroundManager = class BackgroundManager {
|
|
constructor(params) {
|
|
params = Params.parse(params, { container: null,
|
|
layoutManager: Main.layoutManager,
|
|
monitorIndex: null,
|
|
vignette: false,
|
|
controlPosition: true,
|
|
settingsSchema: BACKGROUND_SCHEMA });
|
|
|
|
let cache = getBackgroundCache();
|
|
this._settingsSchema = params.settingsSchema;
|
|
this._backgroundSource = cache.getBackgroundSource(params.layoutManager, params.settingsSchema);
|
|
|
|
this._container = params.container;
|
|
this._layoutManager = params.layoutManager;
|
|
this._vignette = params.vignette;
|
|
this._monitorIndex = params.monitorIndex;
|
|
this._controlPosition = params.controlPosition;
|
|
|
|
this.backgroundActor = this._createBackgroundActor();
|
|
this._newBackgroundActor = null;
|
|
}
|
|
|
|
destroy() {
|
|
let cache = getBackgroundCache();
|
|
cache.releaseBackgroundSource(this._settingsSchema);
|
|
this._backgroundSource = null;
|
|
|
|
if (this._newBackgroundActor) {
|
|
this._newBackgroundActor.destroy();
|
|
this._newBackgroundActor = null;
|
|
}
|
|
|
|
if (this.backgroundActor) {
|
|
this.backgroundActor.destroy();
|
|
this.backgroundActor = null;
|
|
}
|
|
}
|
|
|
|
_swapBackgroundActor() {
|
|
let oldBackgroundActor = this.backgroundActor;
|
|
this.backgroundActor = this._newBackgroundActor;
|
|
this._newBackgroundActor = null;
|
|
this.emit('changed');
|
|
|
|
Tweener.addTween(oldBackgroundActor,
|
|
{ opacity: 0,
|
|
time: FADE_ANIMATION_TIME,
|
|
transition: 'easeOutQuad',
|
|
onComplete() {
|
|
oldBackgroundActor.destroy();
|
|
}
|
|
});
|
|
}
|
|
|
|
_updateBackgroundActor() {
|
|
if (this._newBackgroundActor) {
|
|
/* Skip displaying existing background queued for load */
|
|
this._newBackgroundActor.destroy();
|
|
this._newBackgroundActor = null;
|
|
}
|
|
|
|
let newBackgroundActor = this._createBackgroundActor();
|
|
newBackgroundActor.vignette_sharpness = this.backgroundActor.vignette_sharpness;
|
|
newBackgroundActor.brightness = this.backgroundActor.brightness;
|
|
newBackgroundActor.visible = this.backgroundActor.visible;
|
|
|
|
this._newBackgroundActor = newBackgroundActor;
|
|
|
|
let background = newBackgroundActor.background._delegate;
|
|
|
|
if (background.isLoaded) {
|
|
this._swapBackgroundActor();
|
|
} else {
|
|
newBackgroundActor.loadedSignalId = background.connect('loaded',
|
|
() => {
|
|
background.disconnect(newBackgroundActor.loadedSignalId);
|
|
newBackgroundActor.loadedSignalId = 0;
|
|
|
|
this._swapBackgroundActor();
|
|
});
|
|
}
|
|
}
|
|
|
|
_createBackgroundActor() {
|
|
let background = this._backgroundSource.getBackground(this._monitorIndex);
|
|
let backgroundActor = new Meta.BackgroundActor({ meta_display: global.display,
|
|
monitor: this._monitorIndex,
|
|
background: background.background,
|
|
vignette: this._vignette,
|
|
vignette_sharpness: 0.5,
|
|
brightness: 0.5,
|
|
});
|
|
|
|
this._container.add_child(backgroundActor);
|
|
|
|
if (this._controlPosition) {
|
|
let monitor = this._layoutManager.monitors[this._monitorIndex];
|
|
backgroundActor.set_position(monitor.x, monitor.y);
|
|
backgroundActor.lower_bottom();
|
|
}
|
|
|
|
let changeSignalId = background.connect('changed', () => {
|
|
background.disconnect(changeSignalId);
|
|
changeSignalId = null;
|
|
this._updateBackgroundActor();
|
|
});
|
|
|
|
backgroundActor.connect('destroy', () => {
|
|
if (changeSignalId)
|
|
background.disconnect(changeSignalId);
|
|
|
|
if (backgroundActor.loadedSignalId)
|
|
background.disconnect(backgroundActor.loadedSignalId);
|
|
});
|
|
|
|
return backgroundActor;
|
|
}
|
|
};
|
|
Signals.addSignalMethods(BackgroundManager.prototype);
|