f53bf17331
We need to take the screens position into account when allocating. https://bugzilla.gnome.org/show_bug.cgi?id=613944
987 lines
38 KiB
JavaScript
987 lines
38 KiB
JavaScript
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
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const Big = imports.gi.Big;
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const Clutter = imports.gi.Clutter;
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const Gdk = imports.gi.Gdk;
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const Lang = imports.lang;
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const Mainloop = imports.mainloop;
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const Meta = imports.gi.Meta;
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const Pango = imports.gi.Pango;
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const Shell = imports.gi.Shell;
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const Signals = imports.signals;
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const St = imports.gi.St;
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const Main = imports.ui.main;
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const Tweener = imports.ui.tweener;
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const POPUP_ARROW_COLOR = new Clutter.Color();
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POPUP_ARROW_COLOR.from_pixel(0xffffffff);
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const POPUP_UNFOCUSED_ARROW_COLOR = new Clutter.Color();
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POPUP_UNFOCUSED_ARROW_COLOR.from_pixel(0x808080ff);
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const TRANSPARENT_COLOR = new Clutter.Color();
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TRANSPARENT_COLOR.from_pixel(0x00000000);
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const POPUP_APPICON_SIZE = 96;
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const POPUP_LIST_SPACING = 8;
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const POPUP_SCROLL_TIME = 0.10; // seconds
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const DISABLE_HOVER_TIMEOUT = 500; // milliseconds
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const THUMBNAIL_DEFAULT_SIZE = 256;
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const THUMBNAIL_POPUP_TIME = 500; // milliseconds
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const THUMBNAIL_FADE_TIME = 0.2; // seconds
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const iconSizes = [96, 64, 48, 32, 22];
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function mod(a, b) {
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return (a + b) % b;
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}
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function AltTabPopup() {
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this._init();
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}
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AltTabPopup.prototype = {
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_init : function() {
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this.actor = new Shell.GenericContainer({ reactive: true });
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this.actor.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
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this.actor.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
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this.actor.connect('allocate', Lang.bind(this, this._allocate));
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this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
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this._haveModal = false;
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this._currentApp = 0;
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this._currentWindow = 0;
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this._thumbnailTimeoutId = 0;
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this._motionTimeoutId = 0;
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// Initially disable hover so we ignore the enter-event if
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// the switcher appears underneath the current pointer location
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this._disableHover();
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global.stage.add_actor(this.actor);
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},
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_getPreferredWidth: function (actor, forHeight, alloc) {
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alloc.min_size = global.screen_width;
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alloc.natural_size = global.screen_width;
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},
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_getPreferredHeight: function (actor, forWidth, alloc) {
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alloc.min_size = global.screen_height;
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alloc.natural_size = global.screen_height;
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},
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_allocate: function (actor, box, flags) {
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let childBox = new Clutter.ActorBox();
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let focus = global.get_focus_monitor();
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// Allocate the appSwitcher
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// We select a size based on an icon size that does not overflow the screen
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let [childMinHeight, childNaturalHeight] = this._appSwitcher.actor.get_preferred_height(focus.width - POPUP_LIST_SPACING * 2);
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let [childMinWidth, childNaturalWidth] = this._appSwitcher.actor.get_preferred_width(childNaturalHeight);
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childBox.x1 = Math.max(focus.x + POPUP_LIST_SPACING, focus.x + Math.floor((focus.width - childNaturalWidth) / 2));
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childBox.x2 = Math.min(childBox.x1 + focus.width - POPUP_LIST_SPACING * 2, childBox.x1 + childNaturalWidth);
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childBox.y1 = focus.y + Math.floor((focus.height - childNaturalHeight) / 2);
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childBox.y2 = childBox.y1 + childNaturalHeight;
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this._appSwitcher.actor.allocate(childBox, flags);
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// Allocate the thumbnails
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// We try to avoid overflowing the screen so we base the resulting size on
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// those calculations
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if (this._thumbnails) {
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let icon = this._appIcons[this._currentApp].actor;
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let [posX, posY] = icon.get_transformed_position();
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let thumbnailCenter = posX + icon.width / 2;
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let [childMinWidth, childNaturalWidth] = this._thumbnails.actor.get_preferred_width(-1);
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childBox.x1 = Math.max(focus.x + POPUP_LIST_SPACING, Math.floor(thumbnailCenter - childNaturalWidth / 2));
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if (childBox.x1 + childNaturalWidth > focus.x + focus.width - POPUP_LIST_SPACING * 2) {
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let offset = childBox.x1 + childNaturalWidth - focus.width + POPUP_LIST_SPACING * 2;
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childBox.x1 = Math.max(POPUP_LIST_SPACING, childBox.x1 - offset - POPUP_LIST_SPACING * 2);
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}
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childBox.x2 = childBox.x1 + childNaturalWidth;
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if (childBox.x2 > focus.x + focus.width - POPUP_LIST_SPACING)
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childBox.x2 = focus.x + focus.width - POPUP_LIST_SPACING;
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childBox.y1 = this._appSwitcher.actor.allocation.y2 + POPUP_LIST_SPACING * 2;
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this._thumbnails.addClones(focus.height - POPUP_LIST_SPACING - childBox.y1);
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let [childMinHeight, childNaturalHeight] = this._thumbnails.actor.get_preferred_height(-1);
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childBox.y2 = childBox.y1 + childNaturalHeight;
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this._thumbnails.actor.allocate(childBox, flags);
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}
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},
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show : function(backward) {
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let tracker = Shell.WindowTracker.get_default();
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let apps = tracker.get_running_apps ("");
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if (!apps.length)
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return false;
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if (!Main.pushModal(this.actor))
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return false;
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this._haveModal = true;
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this._keyPressEventId = global.stage.connect('key-press-event', Lang.bind(this, this._keyPressEvent));
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this._keyReleaseEventId = global.stage.connect('key-release-event', Lang.bind(this, this._keyReleaseEvent));
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this.actor.connect('button-press-event', Lang.bind(this, this._clickedOutside));
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this.actor.connect('scroll-event', Lang.bind(this, this._onScroll));
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this._appSwitcher = new AppSwitcher(apps);
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this.actor.add_actor(this._appSwitcher.actor);
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this._appSwitcher.connect('item-activated', Lang.bind(this, this._appActivated));
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this._appSwitcher.connect('item-entered', Lang.bind(this, this._appEntered));
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this._appIcons = this._appSwitcher.icons;
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// Make the initial selection
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if (this._appIcons.length == 1) {
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if (!backward && this._appIcons[0].cachedWindows.length > 1) {
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// For compatibility with the multi-app case below
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this._select(0, 1, true);
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} else
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this._select(0);
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} else if (backward) {
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this._select(this._appIcons.length - 1);
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} else {
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let firstWindows = this._appIcons[0].cachedWindows;
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if (firstWindows.length > 1) {
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let curAppNextWindow = firstWindows[1];
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let nextAppWindow = this._appIcons[1].cachedWindows[0];
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// If the next window of the current app is more-recently-used
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// than the first window of the next app, then select it.
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if (curAppNextWindow.get_workspace() == global.screen.get_active_workspace() &&
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curAppNextWindow.get_user_time() > nextAppWindow.get_user_time())
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this._select(0, 1, true);
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else
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this._select(1);
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} else
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this._select(1);
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}
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// There's a race condition; if the user released Alt before
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// we got the grab, then we won't be notified. (See
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// https://bugzilla.gnome.org/show_bug.cgi?id=596695 for
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// details.) So we check now. (Have to do this after updating
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// selection.)
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let mods = global.get_modifier_keys();
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if (!(mods & Gdk.ModifierType.MOD1_MASK)) {
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this._finish();
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return false;
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}
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return true;
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},
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_nextApp : function() {
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return mod(this._currentApp + 1, this._appIcons.length);
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},
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_previousApp : function() {
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return mod(this._currentApp - 1, this._appIcons.length);
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},
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_nextWindow : function() {
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return mod(this._currentWindow + 1,
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this._appIcons[this._currentApp].cachedWindows.length);
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},
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_previousWindow : function() {
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return mod(this._currentWindow - 1,
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this._appIcons[this._currentApp].cachedWindows.length);
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},
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_keyPressEvent : function(actor, event) {
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let keysym = event.get_key_symbol();
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let shift = (Shell.get_event_state(event) & Clutter.ModifierType.SHIFT_MASK);
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this._disableHover();
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// The WASD stuff is for debugging in Xephyr, where the arrow
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// keys aren't mapped correctly
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if (keysym == Clutter.grave)
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this._select(this._currentApp, shift ? this._previousWindow() : this._nextWindow());
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else if (keysym == Clutter.Escape)
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this.destroy();
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else if (this._thumbnailsFocused) {
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if (keysym == Clutter.Tab) {
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if (shift && this._currentWindow == 0)
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this._select(this._previousApp());
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else if (!shift && this._currentWindow == this._appIcons[this._currentApp].cachedWindows.length - 1)
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this._select(this._nextApp());
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else
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this._select(this._currentApp, shift ? this._previousWindow() : this._nextWindow());
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} else if (keysym == Clutter.Left || keysym == Clutter.a)
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this._select(this._currentApp, this._previousWindow());
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else if (keysym == Clutter.Right || keysym == Clutter.d)
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this._select(this._currentApp, this._nextWindow());
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else if (keysym == Clutter.Up || keysym == Clutter.w)
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this._select(this._currentApp, null, true);
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} else {
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if (keysym == Clutter.Tab)
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this._select(shift ? this._previousApp() : this._nextApp());
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else if (keysym == Clutter.Left || keysym == Clutter.a)
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this._select(this._previousApp());
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else if (keysym == Clutter.Right || keysym == Clutter.d)
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this._select(this._nextApp());
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else if (keysym == Clutter.Down || keysym == Clutter.s)
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this._select(this._currentApp, this._currentWindow);
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}
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return true;
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},
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_keyReleaseEvent : function(actor, event) {
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let keysym = event.get_key_symbol();
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if (keysym == Clutter.Alt_L || keysym == Clutter.Alt_R)
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this._finish();
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return true;
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},
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_onScroll : function(actor, event) {
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let direction = event.get_scroll_direction();
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if (direction == Clutter.ScrollDirection.UP) {
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if (this._thumbnailsFocused) {
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if (this._currentWindow == 0)
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this._select(this._previousApp());
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else
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this._select(this._currentApp, this._previousWindow());
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} else {
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let nwindows = this._appIcons[this._currentApp].cachedWindows.length;
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if (nwindows > 1)
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this._select(this._currentApp, nwindows - 1);
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else
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this._select(this._previousApp());
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}
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} else if (direction == Clutter.ScrollDirection.DOWN) {
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if (this._thumbnailsFocused) {
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if (this._currentWindow == this._appIcons[this._currentApp].cachedWindows.length - 1)
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this._select(this._nextApp());
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else
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this._select(this._currentApp, this._nextWindow());
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} else {
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let nwindows = this._appIcons[this._currentApp].cachedWindows.length;
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if (nwindows > 1)
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this._select(this._currentApp, 0);
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else
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this._select(this._nextApp());
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}
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}
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},
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_clickedOutside : function(actor, event) {
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this.destroy();
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},
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_appActivated : function(appSwitcher, n) {
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// If the user clicks on the selected app, activate the
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// selected window; otherwise (eg, they click on an app while
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// !mouseActive) activate the first window of the clicked-on
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// app.
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let window = (n == this._currentApp) ? this._currentWindow : 0;
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Main.activateWindow(this._appIcons[n].cachedWindows[window]);
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this.destroy();
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},
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_appEntered : function(appSwitcher, n) {
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if (!this._mouseActive)
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return;
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this._select(n);
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},
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_windowActivated : function(thumbnailList, n) {
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Main.activateWindow(this._appIcons[this._currentApp].cachedWindows[n]);
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this.destroy();
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},
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_windowEntered : function(thumbnailList, n) {
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if (!this._mouseActive)
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return;
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this._select(this._currentApp, n);
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},
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_disableHover : function() {
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this._mouseActive = false;
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if (this._motionTimeoutId != 0)
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Mainloop.source_remove(this._motionTimeoutId);
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this._motionTimeoutId = Mainloop.timeout_add(DISABLE_HOVER_TIMEOUT, Lang.bind(this, this._mouseTimedOut));
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},
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_mouseTimedOut : function() {
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this._motionTimeoutId = 0;
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this._mouseActive = true;
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},
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_finish : function() {
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let app = this._appIcons[this._currentApp];
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let window = app.cachedWindows[this._currentWindow];
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Main.activateWindow(window);
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this.destroy();
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},
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destroy : function() {
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this.actor.destroy();
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},
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_onDestroy : function() {
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if (this._haveModal)
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Main.popModal(this.actor);
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if (this._thumbnails)
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this._destroyThumbnails();
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if (this._keyPressEventId)
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global.stage.disconnect(this._keyPressEventId);
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if (this._keyReleaseEventId)
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global.stage.disconnect(this._keyReleaseEventId);
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if (this._motionTimeoutId != 0)
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Mainloop.source_remove(this._motionTimeoutId);
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if (this._thumbnailTimeoutId != 0)
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Mainloop.source_remove(this._thumbnailTimeoutId);
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},
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/**
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* _select:
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* @app: index of the app to select
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* @window: (optional) index of which of @app's windows to select
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* @forceAppFocus: optional flag, see below
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*
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* Selects the indicated @app, and optional @window, and sets
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* this._thumbnailsFocused appropriately to indicate whether the
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* arrow keys should act on the app list or the thumbnail list.
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*
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* If @app is specified and @window is unspecified or %null, then
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* the app is highlighted (ie, given a light background), and the
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* current thumbnail list, if any, is destroyed. If @app has
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* multiple windows, and @forceAppFocus is not %true, then a
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* timeout is started to open a thumbnail list.
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*
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* If @app and @window are specified (and @forceAppFocus is not),
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* then @app will be outlined, a thumbnail list will be created
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* and focused (if it hasn't been already), and the @window'th
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* window in it will be highlighted.
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*
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* If @app and @window are specified and @forceAppFocus is %true,
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* then @app will be highlighted, and @window outlined, and the
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* app list will have the keyboard focus.
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*/
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_select : function(app, window, forceAppFocus) {
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if (app != this._currentApp || window == null) {
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if (this._thumbnails)
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this._destroyThumbnails();
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}
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if (this._thumbnailTimeoutId != 0) {
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Mainloop.source_remove(this._thumbnailTimeoutId);
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this._thumbnailTimeoutId = 0;
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}
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this._thumbnailsFocused = (window != null) && !forceAppFocus;
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this._currentApp = app;
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this._currentWindow = window ? window : 0;
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this._appSwitcher.highlight(app, this._thumbnailsFocused);
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if (window != null) {
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if (!this._thumbnails)
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this._createThumbnails();
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this._currentWindow = window;
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this._thumbnails.highlight(window, forceAppFocus);
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} else if (this._appIcons[this._currentApp].cachedWindows.length > 1 &&
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!forceAppFocus) {
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this._thumbnailTimeoutId = Mainloop.timeout_add (
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THUMBNAIL_POPUP_TIME,
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Lang.bind(this, function () {
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this._select(this._currentApp, 0, true);
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return false;
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}));
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}
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},
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_destroyThumbnails : function() {
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Tweener.addTween(this._thumbnails.actor,
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{ opacity: 0,
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time: THUMBNAIL_FADE_TIME,
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transition: "easeOutQuad",
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onComplete: function() { this.destroy(); }
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});
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this._thumbnails = null;
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},
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_createThumbnails : function() {
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this._thumbnails = new ThumbnailList (this._appIcons[this._currentApp].cachedWindows);
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this._thumbnails.connect('item-activated', Lang.bind(this, this._windowActivated));
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this._thumbnails.connect('item-entered', Lang.bind(this, this._windowEntered));
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this.actor.add_actor(this._thumbnails.actor);
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this._thumbnails.actor.opacity = 0;
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Tweener.addTween(this._thumbnails.actor,
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{ opacity: 255,
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time: THUMBNAIL_FADE_TIME,
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transition: "easeOutQuad"
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});
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}
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};
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function SwitcherList(squareItems) {
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this._init(squareItems);
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}
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SwitcherList.prototype = {
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_init : function(squareItems) {
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this.actor = new St.BoxLayout({ style_class: 'switcher-list' });
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// Here we use a GenericContainer so that we can force all the
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// children except the separator to have the same width.
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this._list = new Shell.GenericContainer();
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this._list.spacing = POPUP_LIST_SPACING;
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this._list.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
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this._list.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
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this._list.connect('allocate', Lang.bind(this, this._allocate));
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this._clipBin = new St.Bin({style_class: 'cbin'});
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this._clipBin.child = this._list;
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this.actor.add_actor(this._clipBin);
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this._leftGradient = new St.BoxLayout({style_class: 'thumbnail-scroll-gradient-left', vertical: true});
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this._rightGradient = new St.BoxLayout({style_class: 'thumbnail-scroll-gradient-right', vertical: true});
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this.actor.add_actor(this._leftGradient);
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this.actor.add_actor(this._rightGradient);
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// Those arrows indicate whether scrolling in one direction is possible
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this._leftArrow = new St.DrawingArea();
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this._leftArrow.connect('repaint', Lang.bind(this,
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function (area) {
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|
Shell.draw_box_pointer(area, Shell.PointerDirection.LEFT, TRANSPARENT_COLOR, POPUP_ARROW_COLOR);
|
|
}));
|
|
|
|
this._rightArrow = new St.DrawingArea();
|
|
this._rightArrow.connect('repaint', Lang.bind(this,
|
|
function (area) {
|
|
Shell.draw_box_pointer(area, Shell.PointerDirection.RIGHT, TRANSPARENT_COLOR, POPUP_ARROW_COLOR);
|
|
}));
|
|
|
|
this._leftGradient.add_actor(this._leftArrow);
|
|
this._rightGradient.add_actor(this._rightArrow);
|
|
|
|
this._items = [];
|
|
this._highlighted = -1;
|
|
this._separator = null;
|
|
this._squareItems = squareItems;
|
|
this._scrollable = false;
|
|
},
|
|
|
|
addItem : function(item) {
|
|
let bbox = new St.Clickable({ style_class: 'item-box',
|
|
reactive: true });
|
|
|
|
bbox.set_child(item);
|
|
this._list.add_actor(bbox);
|
|
|
|
let n = this._items.length;
|
|
bbox.connect('clicked', Lang.bind(this, function () {
|
|
this._itemActivated(n);
|
|
}));
|
|
bbox.connect('enter-event', Lang.bind(this, function () {
|
|
this._itemEntered(n);
|
|
}));
|
|
|
|
this._items.push(bbox);
|
|
},
|
|
|
|
addSeparator: function () {
|
|
let box = new St.Bin({ style_class: 'separator' });
|
|
this._separator = box;
|
|
this._list.add_actor(box);
|
|
},
|
|
|
|
highlight: function(index, justOutline) {
|
|
if (this._highlighted != -1)
|
|
this._items[this._highlighted].style_class = 'item-box';
|
|
|
|
this._highlighted = index;
|
|
|
|
if (this._highlighted != -1) {
|
|
if (justOutline)
|
|
this._items[this._highlighted].style_class = 'outlined-item-box';
|
|
else
|
|
this._items[this._highlighted].style_class = 'selected-item-box';
|
|
}
|
|
|
|
let monitor = global.get_focus_monitor();
|
|
let itemSize = this._items[index].allocation.x2 - this._items[index].allocation.x1;
|
|
let [posX, posY] = this._items[index].get_transformed_position();
|
|
posX += this.actor.x;
|
|
if (posX + itemSize > monitor.width + monitor.x)
|
|
this._scrollToRight();
|
|
else if (posX < 0)
|
|
this._scrollToLeft();
|
|
|
|
},
|
|
|
|
_scrollToLeft : function() {
|
|
let x = this._items[this._highlighted].allocation.x1;
|
|
this._rightGradient.show();
|
|
Tweener.addTween(this._list, { anchor_x: x,
|
|
time: POPUP_SCROLL_TIME,
|
|
transition: 'easeOutQuad',
|
|
onComplete: Lang.bind(this, function () {
|
|
if (this._highlighted == 0)
|
|
this._leftGradient.hide();
|
|
})
|
|
});
|
|
},
|
|
|
|
_scrollToRight : function() {
|
|
let monitor = global.get_focus_monitor();
|
|
let padding = this.actor.get_theme_node().get_horizontal_padding();
|
|
let x = this._items[this._highlighted].allocation.x2 - monitor.width + padding + POPUP_LIST_SPACING * 2;
|
|
this._leftGradient.show();
|
|
Tweener.addTween(this._list, { anchor_x: x,
|
|
time: POPUP_SCROLL_TIME,
|
|
transition: 'easeOutQuad',
|
|
onComplete: Lang.bind(this, function () {
|
|
if (this._highlighted == this._items.length - 1)
|
|
this._rightGradient.hide();
|
|
})
|
|
});
|
|
},
|
|
|
|
_itemActivated: function(n) {
|
|
this.emit('item-activated', n);
|
|
},
|
|
|
|
_itemEntered: function(n) {
|
|
this.emit('item-entered', n);
|
|
},
|
|
|
|
_maxChildWidth: function (forHeight) {
|
|
let maxChildMin = 0;
|
|
let maxChildNat = 0;
|
|
|
|
for (let i = 0; i < this._items.length; i++) {
|
|
let [childMin, childNat] = this._items[i].get_preferred_width(forHeight);
|
|
maxChildMin = Math.max(childMin, maxChildMin);
|
|
maxChildNat = Math.max(childNat, maxChildNat);
|
|
|
|
if (this._squareItems) {
|
|
let [childMin, childNat] = this._items[i].get_preferred_height(-1);
|
|
maxChildMin = Math.max(childMin, maxChildMin);
|
|
maxChildNat = Math.max(childNat, maxChildNat);
|
|
}
|
|
}
|
|
|
|
return [maxChildMin, maxChildNat];
|
|
},
|
|
|
|
_getPreferredWidth: function (actor, forHeight, alloc) {
|
|
let [maxChildMin, maxChildNat] = this._maxChildWidth(forHeight);
|
|
|
|
let separatorWidth = 0;
|
|
if (this._separator) {
|
|
let [sepMin, sepNat] = this._separator.get_preferred_width(forHeight);
|
|
separatorWidth = sepNat + this._list.spacing;
|
|
}
|
|
|
|
let totalSpacing = this._list.spacing * (this._items.length - 1);
|
|
alloc.min_size = this._items.length * maxChildMin + separatorWidth + totalSpacing;
|
|
alloc.natural_size = alloc.min_size;
|
|
},
|
|
|
|
_getPreferredHeight: function (actor, forWidth, alloc) {
|
|
let maxChildMin = 0;
|
|
let maxChildNat = 0;
|
|
|
|
for (let i = 0; i < this._items.length; i++) {
|
|
let [childMin, childNat] = this._items[i].get_preferred_height(-1);
|
|
maxChildMin = Math.max(childMin, maxChildMin);
|
|
maxChildNat = Math.max(childNat, maxChildNat);
|
|
}
|
|
|
|
if (this._squareItems) {
|
|
let [childMin, childNat] = this._maxChildWidth(-1);
|
|
maxChildMin = Math.max(childMin, maxChildMin);
|
|
maxChildNat = maxChildMin;
|
|
}
|
|
|
|
alloc.min_size = maxChildMin;
|
|
alloc.natural_size = maxChildNat;
|
|
},
|
|
|
|
_allocate: function (actor, box, flags) {
|
|
let childHeight = box.y2 - box.y1;
|
|
|
|
let [maxChildMin, maxChildNat] = this._maxChildWidth(childHeight);
|
|
let totalSpacing = this._list.spacing * (this._items.length - 1);
|
|
|
|
let separatorWidth = 0;
|
|
if (this._separator) {
|
|
let [sepMin, sepNat] = this._separator.get_preferred_width(childHeight);
|
|
separatorWidth = sepNat;
|
|
totalSpacing += this._list.spacing;
|
|
}
|
|
|
|
let childWidth = Math.floor(Math.max(0, box.x2 - box.x1 - totalSpacing - separatorWidth) / this._items.length);
|
|
|
|
let x = 0;
|
|
let children = this._list.get_children();
|
|
let childBox = new Clutter.ActorBox();
|
|
|
|
let focus = global.get_focus_monitor();
|
|
if (this.actor.allocation.x2 == focus.width - POPUP_LIST_SPACING) {
|
|
if (this._squareItems)
|
|
childWidth = childHeight;
|
|
else
|
|
childWidth = children[0].get_preferred_width(childHeight)[0];
|
|
}
|
|
|
|
for (let i = 0; i < children.length; i++) {
|
|
if (this._items.indexOf(children[i]) != -1) {
|
|
let [childMin, childNat] = children[i].get_preferred_height(childWidth);
|
|
let vSpacing = (childHeight - childNat) / 2;
|
|
childBox.x1 = x;
|
|
childBox.y1 = vSpacing;
|
|
childBox.x2 = x + childWidth;
|
|
childBox.y2 = childBox.y1 + childNat;
|
|
children[i].allocate(childBox, flags);
|
|
|
|
x += this._list.spacing + childWidth;
|
|
} else if (children[i] == this._separator) {
|
|
// We want the separator to be more compact than the rest.
|
|
childBox.x1 = x;
|
|
childBox.y1 = 0;
|
|
childBox.x2 = x + separatorWidth;
|
|
childBox.y2 = childHeight;
|
|
children[i].allocate(childBox, flags);
|
|
x += this._list.spacing + separatorWidth;
|
|
} else {
|
|
// Something else, eg, AppSwitcher's arrows;
|
|
// we don't allocate it.
|
|
}
|
|
}
|
|
|
|
let leftPadding = this.actor.get_theme_node().get_padding(St.Side.LEFT);
|
|
let rightPadding = this.actor.get_theme_node().get_padding(St.Side.RIGHT);
|
|
let topPadding = this.actor.get_theme_node().get_padding(St.Side.TOP);
|
|
let bottomPadding = this.actor.get_theme_node().get_padding(St.Side.BOTTOM);
|
|
|
|
// Show the arrows and gradients when scrolling is needed
|
|
if (children[children.length - 1].allocation.x2 > this.actor.width - leftPadding - rightPadding && !this._scrollable) {
|
|
this._leftGradient.set_height(this.actor.height);
|
|
this._leftGradient.x = this.actor.x;
|
|
this._leftGradient.y = this.actor.y;
|
|
|
|
this._rightGradient.set_height(this.actor.height);
|
|
this._rightGradient.x = this.actor.x + (this.actor.allocation.x2 - this.actor.allocation.x1) - this._rightGradient.width;
|
|
this._rightGradient.y = this.actor.y;
|
|
|
|
let arrowWidth = Math.floor(leftPadding / 3);
|
|
let arrowHeight = arrowWidth * 2;
|
|
this._leftArrow.set_size(arrowWidth, arrowHeight);
|
|
this._leftArrow.set_position(POPUP_LIST_SPACING, this.actor.height / 2 - arrowWidth);
|
|
|
|
arrowWidth = Math.floor(rightPadding / 3);
|
|
arrowHeight = arrowWidth * 2;
|
|
this._rightArrow.set_size(arrowWidth, arrowHeight);
|
|
this._rightArrow.set_position(this._rightGradient.width - arrowHeight, this.actor.height / 2 - arrowWidth);
|
|
|
|
this._scrollable = true;
|
|
|
|
this._leftGradient.hide();
|
|
this._rightGradient.show();
|
|
}
|
|
else if (!this._scrollable){
|
|
this._leftGradient.hide();
|
|
this._rightGradient.hide();
|
|
}
|
|
|
|
// Clip the area for scrolling
|
|
this._clipBin.set_clip(0, -topPadding, (this.actor.allocation.x2 - this.actor.allocation.x1) - leftPadding - rightPadding, this.actor.height + bottomPadding);
|
|
}
|
|
};
|
|
|
|
Signals.addSignalMethods(SwitcherList.prototype);
|
|
|
|
function AppIcon(app) {
|
|
this._init(app);
|
|
}
|
|
|
|
AppIcon.prototype = {
|
|
_init: function(app) {
|
|
this.app = app;
|
|
this.actor = new St.BoxLayout({ style_class: "alt-tab-app",
|
|
vertical: true });
|
|
this.icon = null;
|
|
this._iconBin = new St.Bin();
|
|
|
|
this.actor.add(this._iconBin, { x_fill: false, y_fill: false } );
|
|
this.label = new St.Label({ text: this.app.get_name() });
|
|
this.actor.add(this.label, { x_fill: false });
|
|
},
|
|
|
|
set_size: function(size) {
|
|
this.icon = this.app.create_icon_texture(size);
|
|
this._iconBin.set_size(size, size);
|
|
this._iconBin.child = this.icon;
|
|
}
|
|
};
|
|
|
|
function AppSwitcher(apps) {
|
|
this._init(apps);
|
|
}
|
|
|
|
AppSwitcher.prototype = {
|
|
__proto__ : SwitcherList.prototype,
|
|
|
|
_init : function(apps) {
|
|
SwitcherList.prototype._init.call(this, true);
|
|
|
|
// Construct the AppIcons, sort by time, add to the popup
|
|
let activeWorkspace = global.screen.get_active_workspace();
|
|
let workspaceIcons = [];
|
|
let otherIcons = [];
|
|
for (let i = 0; i < apps.length; i++) {
|
|
let appIcon = new AppIcon(apps[i]);
|
|
// Cache the window list now; we don't handle dynamic changes here,
|
|
// and we don't want to be continually retrieving it
|
|
appIcon.cachedWindows = appIcon.app.get_windows();
|
|
if (this._hasWindowsOnWorkspace(appIcon, activeWorkspace))
|
|
workspaceIcons.push(appIcon);
|
|
else
|
|
otherIcons.push(appIcon);
|
|
}
|
|
|
|
workspaceIcons.sort(Lang.bind(this, this._sortAppIcon));
|
|
otherIcons.sort(Lang.bind(this, this._sortAppIcon));
|
|
|
|
this.icons = [];
|
|
this._arrows = [];
|
|
for (let i = 0; i < workspaceIcons.length; i++)
|
|
this._addIcon(workspaceIcons[i]);
|
|
if (workspaceIcons.length > 0 && otherIcons.length > 0)
|
|
this.addSeparator();
|
|
for (let i = 0; i < otherIcons.length; i++)
|
|
this._addIcon(otherIcons[i]);
|
|
|
|
this._curApp = -1;
|
|
this._iconSize = 0;
|
|
},
|
|
|
|
_getPreferredHeight: function (actor, forWidth, alloc) {
|
|
let j = 0;
|
|
while(this._items.length > 1 && this._items[j].style_class != 'item-box') {
|
|
j++;
|
|
}
|
|
let iconPadding = this._items[j].get_theme_node().get_horizontal_padding();
|
|
let [iconMinHeight, iconNaturalHeight] = this.icons[j].label.get_preferred_height(-1);
|
|
let iconSpacing = iconNaturalHeight + iconPadding;
|
|
let totalSpacing = this._list.spacing * (this._items.length - 1);
|
|
if (this._separator)
|
|
totalSpacing += this._separator.width + this._list.spacing;
|
|
|
|
// We just assume the whole screen here due to weirdness happing with the passed width
|
|
let focus = global.get_focus_monitor();
|
|
let availWidth = focus.width - POPUP_LIST_SPACING * 2 - this.actor.get_theme_node().get_horizontal_padding();
|
|
let height = 0;
|
|
|
|
for(let i = 0; i < iconSizes.length; i++) {
|
|
this._iconSize = iconSizes[i];
|
|
height = iconSizes[i] + iconSpacing;
|
|
let w = height * this._items.length + totalSpacing;
|
|
if (w <= availWidth)
|
|
break;
|
|
}
|
|
|
|
if (this._items.length == 1) {
|
|
this._iconSize = iconSizes[0];
|
|
height = iconSizes[0] + iconSpacing;
|
|
}
|
|
|
|
alloc.min_size = height;
|
|
alloc.natural_size = height;
|
|
},
|
|
|
|
_allocate: function (actor, box, flags) {
|
|
for(let i = 0; i < this.icons.length; i++) {
|
|
if (this.icons[i].icon != null)
|
|
break;
|
|
this.icons[i].set_size(this._iconSize);
|
|
}
|
|
|
|
// Allocate the main list items
|
|
SwitcherList.prototype._allocate.call(this, actor, box, flags);
|
|
|
|
let arrowHeight = Math.floor(this.actor.get_theme_node().get_padding(St.Side.BOTTOM) / 3);
|
|
let arrowWidth = arrowHeight * 2;
|
|
|
|
// Now allocate each arrow underneath its item
|
|
let childBox = new Clutter.ActorBox();
|
|
for (let i = 0; i < this._items.length; i++) {
|
|
let itemBox = this._items[i].allocation;
|
|
childBox.x1 = Math.floor(itemBox.x1 + (itemBox.x2 - itemBox.x1 - arrowWidth) / 2);
|
|
childBox.x2 = childBox.x1 + arrowWidth;
|
|
childBox.y1 = itemBox.y2 + arrowHeight;
|
|
childBox.y2 = childBox.y1 + arrowHeight;
|
|
this._arrows[i].allocate(childBox, flags);
|
|
}
|
|
},
|
|
|
|
// We override SwitcherList's highlight() method to also deal with
|
|
// the AppSwitcher->ThumbnailList arrows. Apps with only 1 window
|
|
// will hide their arrows by default, but show them when their
|
|
// thumbnails are visible (ie, when the app icon is supposed to be
|
|
// in justOutline mode). Apps with multiple windows will normally
|
|
// show a dim arrow, but show a bright arrow when they are
|
|
// highlighted; their redraw handler will use the right color
|
|
// based on this._curApp; we just need to do a queue_relayout() to
|
|
// force it to redraw. (queue_redraw() doesn't work because
|
|
// ShellDrawingArea only redraws on allocate.)
|
|
highlight : function(n, justOutline) {
|
|
if (this._curApp != -1) {
|
|
if (this.icons[this._curApp].cachedWindows.length == 1)
|
|
this._arrows[this._curApp].hide();
|
|
else
|
|
this._arrows[this._curApp].queue_relayout();
|
|
}
|
|
|
|
SwitcherList.prototype.highlight.call(this, n, justOutline);
|
|
this._curApp = n;
|
|
|
|
if (this._curApp != -1) {
|
|
if (justOutline && this.icons[this._curApp].cachedWindows.length == 1)
|
|
this._arrows[this._curApp].show();
|
|
else
|
|
this._arrows[this._curApp].queue_relayout();
|
|
}
|
|
},
|
|
|
|
_addIcon : function(appIcon) {
|
|
this.icons.push(appIcon);
|
|
this.addItem(appIcon.actor);
|
|
|
|
let n = this._arrows.length;
|
|
let arrow = new St.DrawingArea();
|
|
arrow.connect('repaint', Lang.bind(this,
|
|
function (area) {
|
|
Shell.draw_box_pointer(area, Shell.PointerDirection.DOWN,
|
|
TRANSPARENT_COLOR,
|
|
this._curApp == n ? POPUP_ARROW_COLOR : POPUP_UNFOCUSED_ARROW_COLOR);
|
|
}));
|
|
this._list.add_actor(arrow);
|
|
this._arrows.push(arrow);
|
|
|
|
if (appIcon.cachedWindows.length == 1)
|
|
arrow.hide();
|
|
},
|
|
|
|
_hasWindowsOnWorkspace: function(appIcon, workspace) {
|
|
let windows = appIcon.cachedWindows;
|
|
for (let i = 0; i < windows.length; i++) {
|
|
if (windows[i].get_workspace() == workspace)
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
|
|
_sortAppIcon : function(appIcon1, appIcon2) {
|
|
return appIcon1.app.compare(appIcon2.app);
|
|
}
|
|
};
|
|
|
|
function ThumbnailList(windows) {
|
|
this._init(windows);
|
|
}
|
|
|
|
ThumbnailList.prototype = {
|
|
__proto__ : SwitcherList.prototype,
|
|
|
|
_init : function(windows) {
|
|
SwitcherList.prototype._init.call(this);
|
|
|
|
let activeWorkspace = global.screen.get_active_workspace();
|
|
|
|
// We fake the value of "separatorAdded" when the app has no window
|
|
// on the current workspace, to avoid displaying a useless separator in
|
|
// that case.
|
|
let separatorAdded = windows.length == 0 || windows[0].get_workspace() != activeWorkspace;
|
|
|
|
this._labels = new Array();
|
|
this._thumbnailBins = new Array();
|
|
this._clones = new Array();
|
|
this._windows = windows;
|
|
|
|
for (let i = 0; i < windows.length; i++) {
|
|
if (!separatorAdded && windows[i].get_workspace() != activeWorkspace) {
|
|
this.addSeparator();
|
|
separatorAdded = true;
|
|
}
|
|
|
|
let box = new St.BoxLayout({ style_class: "thumbnail-box",
|
|
vertical: true });
|
|
|
|
let bin = new St.Bin({ style_class: "thumbnail" });
|
|
|
|
box.add_actor(bin);
|
|
this._thumbnailBins.push(bin);
|
|
|
|
let title = windows[i].get_title();
|
|
if (title) {
|
|
let name = new St.Label({ text: title });
|
|
// St.Label doesn't support text-align so use a Bin
|
|
let bin = new St.Bin({ x_align: St.Align.MIDDLE });
|
|
this._labels.push(bin);
|
|
bin.add_actor(name);
|
|
box.add_actor(bin);
|
|
}
|
|
|
|
this.addItem(box);
|
|
}
|
|
},
|
|
|
|
addClones : function (availHeight) {
|
|
if (!this._thumbnailBins.length)
|
|
return;
|
|
let totalPadding = this._items[0].get_theme_node().get_horizontal_padding() + this._items[0].get_theme_node().get_vertical_padding();
|
|
totalPadding += this.actor.get_theme_node().get_horizontal_padding() + this.actor.get_theme_node().get_vertical_padding();
|
|
let [labelMinHeight, labelNaturalHeight] = this._labels[0].get_preferred_height(-1);
|
|
let [found, spacing] = this._items[0].child.get_theme_node().get_length('spacing', false);
|
|
if (!found)
|
|
spacing = 0;
|
|
|
|
availHeight = Math.min(availHeight - labelNaturalHeight - totalPadding - spacing, THUMBNAIL_DEFAULT_SIZE);
|
|
let binHeight = availHeight + this._items[0].get_theme_node().get_vertical_padding() + this.actor.get_theme_node().get_vertical_padding() - spacing;
|
|
binHeight = Math.min(THUMBNAIL_DEFAULT_SIZE, binHeight);
|
|
|
|
for (let i = 0; i < this._thumbnailBins.length; i++) {
|
|
let mutterWindow = this._windows[i].get_compositor_private();
|
|
let windowTexture = mutterWindow.get_texture ();
|
|
let [width, height] = windowTexture.get_size();
|
|
let scale = Math.min(1.0, THUMBNAIL_DEFAULT_SIZE / width, availHeight / height);
|
|
let clone = new Clutter.Clone ({ source: windowTexture,
|
|
reactive: true,
|
|
width: width * scale,
|
|
height: height * scale });
|
|
|
|
this._thumbnailBins[i].set_height(binHeight);
|
|
this._thumbnailBins[i].add_actor(clone);
|
|
this._clones.push(clone);
|
|
}
|
|
|
|
// Make sure we only do this once
|
|
this._thumbnailBins = new Array();
|
|
}
|
|
};
|