367eaf9161
Limit the AppSwitcher to the screen size by either downscaling or scrolling. We scale the icons down up from 96, 64, 48, 32 to 22 and start scrolling if we still fail to fit on screen. The thumbnail box is shifted to either left or right, when failing to fit we scroll here to. To prevent from being offscreen at the buttom we adjust the thumbnail height to fit. The old positioning logic is replaced with a ShellGenericContainer to implement a custom allocation system. https://bugzilla.gnome.org/show_bug.cgi?id=597983
988 lines
38 KiB
JavaScript
988 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(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(POPUP_LIST_SPACING, Math.floor(thumbnailCenter - childNaturalWidth / 2));
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if (childBox.x1 + childNaturalWidth > 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.width - POPUP_LIST_SPACING)
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childBox.x2 = 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();
|
|
this._leftArrow.connect('repaint', Lang.bind(this,
|
|
function (area) {
|
|
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)
|
|
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();
|
|
}
|
|
};
|