8eb88d17fe
Dash items are currently animated via the custom "childScale" and
"childOpacity" properties. However since commit efb3025d8c, those
properties actually control the scale-x/scale-y and opacity properties
of the actor itself (not the child), so cut out the intermediate
custom properties in favor of the "real" ones.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
899 lines
31 KiB
JavaScript
899 lines
31 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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/* exported Dash */
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const { Clutter, GLib, GObject, Meta, Shell, St } = imports.gi;
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const Mainloop = imports.mainloop;
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const Signals = imports.signals;
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const AppDisplay = imports.ui.appDisplay;
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const AppFavorites = imports.ui.appFavorites;
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const DND = imports.ui.dnd;
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const IconGrid = imports.ui.iconGrid;
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const Main = imports.ui.main;
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const Tweener = imports.ui.tweener;
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var DASH_ANIMATION_TIME = 200;
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var DASH_ITEM_LABEL_SHOW_TIME = 150;
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var DASH_ITEM_LABEL_HIDE_TIME = 100;
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var DASH_ITEM_HOVER_TIMEOUT = 300;
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function getAppFromSource(source) {
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if (source instanceof AppDisplay.AppIcon) {
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return source.app;
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} else {
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return null;
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}
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}
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// A container like StBin, but taking the child's scale into account
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// when requesting a size
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var DashItemContainer = GObject.registerClass(
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class DashItemContainer extends St.Widget {
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_init() {
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super._init({ style_class: 'dash-item-container',
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pivot_point: new Clutter.Point({ x: .5, y: .5 }),
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scale_x: 0,
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scale_y: 0,
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opacity: 0,
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x_expand: true,
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x_align: Clutter.ActorAlign.CENTER });
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this._labelText = "";
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this.label = new St.Label({ style_class: 'dash-label' });
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this.label.hide();
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Main.layoutManager.addChrome(this.label);
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this.label_actor = this.label;
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this.child = null;
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this.animatingOut = false;
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this.connect('notify::scale-x', () => this.queue_relayout());
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this.connect('notify::scale-y', () => this.queue_relayout());
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this.connect('destroy', () => {
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if (this.child != null)
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this.child.destroy();
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this.label.destroy();
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});
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}
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vfunc_get_preferred_height(forWidth) {
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let themeNode = this.get_theme_node();
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forWidth = themeNode.adjust_for_width(forWidth);
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let [minHeight, natHeight] = super.vfunc_get_preferred_height(forWidth);
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return themeNode.adjust_preferred_height(minHeight * this.scale_y,
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natHeight * this.scale_y);
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}
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vfunc_get_preferred_width(forHeight) {
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let themeNode = this.get_theme_node();
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forHeight = themeNode.adjust_for_height(forHeight);
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let [minWidth, natWidth] = super.vfunc_get_preferred_width(forHeight);
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return themeNode.adjust_preferred_width(minWidth * this.scale_x,
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natWidth * this.scale_x);
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}
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showLabel() {
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if (!this._labelText)
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return;
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this.label.set_text(this._labelText);
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this.label.opacity = 0;
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this.label.show();
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let [stageX, stageY] = this.get_transformed_position();
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let itemHeight = this.allocation.y2 - this.allocation.y1;
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let labelHeight = this.label.get_height();
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let yOffset = Math.floor((itemHeight - labelHeight) / 2);
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let y = stageY + yOffset;
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let node = this.label.get_theme_node();
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let xOffset = node.get_length('-x-offset');
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let x;
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if (Clutter.get_default_text_direction() == Clutter.TextDirection.RTL)
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x = stageX - this.label.get_width() - xOffset;
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else
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x = stageX + this.get_width() + xOffset;
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this.label.set_position(x, y);
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Tweener.addTween(this.label,
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{ opacity: 255,
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time: DASH_ITEM_LABEL_SHOW_TIME / 1000,
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transition: 'easeOutQuad',
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});
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}
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setLabelText(text) {
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this._labelText = text;
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this.child.accessible_name = text;
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}
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hideLabel() {
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Tweener.addTween(this.label,
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{ opacity: 0,
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time: DASH_ITEM_LABEL_HIDE_TIME / 1000,
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transition: 'easeOutQuad',
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onComplete: () => {
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this.label.hide();
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}
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});
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}
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setChild(actor) {
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if (this.child == actor)
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return;
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this.destroy_all_children();
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this.child = actor;
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this.add_actor(this.child);
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}
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show(animate) {
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if (this.child == null)
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return;
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let time = animate ? DASH_ANIMATION_TIME : 0;
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Tweener.addTween(this,
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{ scale_x: 1.0,
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scale_y: 1.0,
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opacity: 255,
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time: time / 1000,
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transition: 'easeOutQuad'
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});
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}
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animateOutAndDestroy() {
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this.label.hide();
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if (this.child == null) {
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this.destroy();
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return;
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}
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this.animatingOut = true;
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Tweener.addTween(this,
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{ scale_x: 0,
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scale_y: 0,
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opacity: 0,
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time: DASH_ANIMATION_TIME / 1000,
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transition: 'easeOutQuad',
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onComplete: () => this.destroy()
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});
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}
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});
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var ShowAppsIcon = GObject.registerClass(
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class ShowAppsIcon extends DashItemContainer {
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_init() {
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super._init();
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this.toggleButton = new St.Button({ style_class: 'show-apps',
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track_hover: true,
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can_focus: true,
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toggle_mode: true });
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this._iconActor = null;
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this.icon = new IconGrid.BaseIcon(_("Show Applications"),
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{ setSizeManually: true,
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showLabel: false,
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createIcon: this._createIcon.bind(this) });
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this.toggleButton.add_actor(this.icon);
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this.toggleButton._delegate = this;
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this.setChild(this.toggleButton);
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this.setDragApp(null);
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}
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_createIcon(size) {
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this._iconActor = new St.Icon({ icon_name: 'view-app-grid-symbolic',
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icon_size: size,
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style_class: 'show-apps-icon',
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track_hover: true });
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return this._iconActor;
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}
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_canRemoveApp(app) {
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if (app == null)
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return false;
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if (!global.settings.is_writable('favorite-apps'))
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return false;
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let id = app.get_id();
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let isFavorite = AppFavorites.getAppFavorites().isFavorite(id);
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return isFavorite;
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}
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setDragApp(app) {
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let canRemove = this._canRemoveApp(app);
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this.toggleButton.set_hover(canRemove);
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if (this._iconActor)
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this._iconActor.set_hover(canRemove);
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if (canRemove)
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this.setLabelText(_("Remove from Favorites"));
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else
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this.setLabelText(_("Show Applications"));
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}
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handleDragOver(source, _actor, _x, _y, _time) {
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if (!this._canRemoveApp(getAppFromSource(source)))
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return DND.DragMotionResult.NO_DROP;
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return DND.DragMotionResult.MOVE_DROP;
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}
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acceptDrop(source, _actor, _x, _y, _time) {
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let app = getAppFromSource(source);
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if (!this._canRemoveApp(app))
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return false;
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let id = app.get_id();
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Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
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AppFavorites.getAppFavorites().removeFavorite(id);
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return false;
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});
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return true;
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}
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});
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var DragPlaceholderItem = GObject.registerClass(
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class DragPlaceholderItem extends DashItemContainer {
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_init() {
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super._init();
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this.setChild(new St.Bin({ style_class: 'placeholder' }));
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}
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});
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var EmptyDropTargetItem = GObject.registerClass(
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class EmptyDropTargetItem extends DashItemContainer {
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_init() {
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super._init();
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this.setChild(new St.Bin({ style_class: 'empty-dash-drop-target' }));
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}
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});
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var DashActor = GObject.registerClass(
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class DashActor extends St.Widget {
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_init() {
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let layout = new Clutter.BoxLayout({ orientation: Clutter.Orientation.VERTICAL });
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super._init({ name: 'dash',
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layout_manager: layout,
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clip_to_allocation: true });
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}
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vfunc_allocate(box, flags) {
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let contentBox = this.get_theme_node().get_content_box(box);
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let availWidth = contentBox.x2 - contentBox.x1;
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this.set_allocation(box, flags);
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let [appIcons, showAppsButton] = this.get_children();
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let [, showAppsNatHeight] = showAppsButton.get_preferred_height(availWidth);
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let childBox = new Clutter.ActorBox();
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childBox.x1 = contentBox.x1;
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childBox.y1 = contentBox.y1;
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childBox.x2 = contentBox.x2;
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childBox.y2 = contentBox.y2 - showAppsNatHeight;
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appIcons.allocate(childBox, flags);
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childBox.y1 = contentBox.y2 - showAppsNatHeight;
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childBox.y2 = contentBox.y2;
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showAppsButton.allocate(childBox, flags);
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}
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vfunc_get_preferred_height(forWidth) {
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// We want to request the natural height of all our children
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// as our natural height, so we chain up to StWidget (which
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// then calls BoxLayout), but we only request the showApps
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// button as the minimum size
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let [, natHeight] = super.vfunc_get_preferred_height(forWidth);
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let themeNode = this.get_theme_node();
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let adjustedForWidth = themeNode.adjust_for_width(forWidth);
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let [, showAppsButton] = this.get_children();
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let [minHeight] = showAppsButton.get_preferred_height(adjustedForWidth);
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[minHeight] = themeNode.adjust_preferred_height(minHeight, natHeight);
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return [minHeight, natHeight];
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}
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});
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const baseIconSizes = [16, 22, 24, 32, 48, 64];
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var Dash = class Dash {
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constructor() {
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this._maxHeight = -1;
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this.iconSize = 64;
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this._shownInitially = false;
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this._dragPlaceholder = null;
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this._dragPlaceholderPos = -1;
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this._animatingPlaceholdersCount = 0;
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this._showLabelTimeoutId = 0;
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this._resetHoverTimeoutId = 0;
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this._labelShowing = false;
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this._container = new DashActor();
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this._box = new St.BoxLayout({ vertical: true,
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clip_to_allocation: true });
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this._box._delegate = this;
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this._container.add_actor(this._box);
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this._container.set_offscreen_redirect(Clutter.OffscreenRedirect.ALWAYS);
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this._showAppsIcon = new ShowAppsIcon();
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this._showAppsIcon.show(false);
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this._showAppsIcon.icon.setIconSize(this.iconSize);
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this._hookUpLabel(this._showAppsIcon);
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this.showAppsButton = this._showAppsIcon.toggleButton;
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this._container.add_actor(this._showAppsIcon);
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this.actor = new St.Bin({ child: this._container });
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this.actor.connect('notify::height', () => {
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if (this._maxHeight != this.actor.height)
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this._queueRedisplay();
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this._maxHeight = this.actor.height;
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});
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this._workId = Main.initializeDeferredWork(this._box, this._redisplay.bind(this));
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this._appSystem = Shell.AppSystem.get_default();
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this._appSystem.connect('installed-changed', () => {
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AppFavorites.getAppFavorites().reload();
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this._queueRedisplay();
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});
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AppFavorites.getAppFavorites().connect('changed', this._queueRedisplay.bind(this));
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this._appSystem.connect('app-state-changed', this._queueRedisplay.bind(this));
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Main.overview.connect('item-drag-begin',
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this._onDragBegin.bind(this));
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Main.overview.connect('item-drag-end',
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this._onDragEnd.bind(this));
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Main.overview.connect('item-drag-cancelled',
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this._onDragCancelled.bind(this));
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// Translators: this is the name of the dock/favorites area on
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// the left of the overview
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Main.ctrlAltTabManager.addGroup(this.actor, _("Dash"), 'user-bookmarks-symbolic');
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}
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_onDragBegin() {
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this._dragCancelled = false;
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this._dragMonitor = {
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dragMotion: this._onDragMotion.bind(this)
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};
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DND.addDragMonitor(this._dragMonitor);
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if (this._box.get_n_children() == 0) {
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this._emptyDropTarget = new EmptyDropTargetItem();
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this._box.insert_child_at_index(this._emptyDropTarget, 0);
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this._emptyDropTarget.show(true);
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}
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}
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_onDragCancelled() {
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this._dragCancelled = true;
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this._endDrag();
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}
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_onDragEnd() {
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if (this._dragCancelled)
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return;
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this._endDrag();
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}
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_endDrag() {
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this._clearDragPlaceholder();
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this._clearEmptyDropTarget();
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this._showAppsIcon.setDragApp(null);
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DND.removeDragMonitor(this._dragMonitor);
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}
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_onDragMotion(dragEvent) {
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let app = getAppFromSource(dragEvent.source);
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if (app == null)
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return DND.DragMotionResult.CONTINUE;
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let showAppsHovered =
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this._showAppsIcon.contains(dragEvent.targetActor);
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if (!this._box.contains(dragEvent.targetActor) || showAppsHovered)
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this._clearDragPlaceholder();
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if (showAppsHovered)
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this._showAppsIcon.setDragApp(app);
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else
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this._showAppsIcon.setDragApp(null);
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return DND.DragMotionResult.CONTINUE;
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}
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_appIdListToHash(apps) {
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let ids = {};
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for (let i = 0; i < apps.length; i++)
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ids[apps[i].get_id()] = apps[i];
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return ids;
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}
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_queueRedisplay() {
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Main.queueDeferredWork(this._workId);
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}
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_hookUpLabel(item, appIcon) {
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item.child.connect('notify::hover', () => {
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this._syncLabel(item, appIcon);
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});
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let id = Main.overview.connect('hiding', () => {
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this._labelShowing = false;
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item.hideLabel();
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});
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item.child.connect('destroy', () => {
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Main.overview.disconnect(id);
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});
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if (appIcon) {
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appIcon.connect('sync-tooltip', () => {
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this._syncLabel(item, appIcon);
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});
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}
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}
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_createAppItem(app) {
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let appIcon = new AppDisplay.AppIcon(app,
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{ setSizeManually: true,
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showLabel: false });
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if (appIcon._draggable) {
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appIcon._draggable.connect('drag-begin',
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() => {
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appIcon.actor.opacity = 50;
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});
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appIcon._draggable.connect('drag-end',
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() => {
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appIcon.actor.opacity = 255;
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});
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}
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appIcon.connect('menu-state-changed',
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(appIcon, opened) => {
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this._itemMenuStateChanged(item, opened);
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});
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let item = new DashItemContainer();
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item.setChild(appIcon.actor);
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// Override default AppIcon label_actor, now the
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// accessible_name is set at DashItemContainer.setLabelText
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appIcon.actor.label_actor = null;
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item.setLabelText(app.get_name());
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appIcon.icon.setIconSize(this.iconSize);
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this._hookUpLabel(item, appIcon);
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return item;
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}
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_itemMenuStateChanged(item, opened) {
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// When the menu closes, it calls sync_hover, which means
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// that the notify::hover handler does everything we need to.
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if (opened) {
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if (this._showLabelTimeoutId > 0) {
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Mainloop.source_remove(this._showLabelTimeoutId);
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this._showLabelTimeoutId = 0;
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}
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item.hideLabel();
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}
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}
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_syncLabel(item, appIcon) {
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let shouldShow = appIcon ? appIcon.shouldShowTooltip() : item.child.get_hover();
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if (shouldShow) {
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if (this._showLabelTimeoutId == 0) {
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let timeout = this._labelShowing ? 0 : DASH_ITEM_HOVER_TIMEOUT;
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this._showLabelTimeoutId = Mainloop.timeout_add(timeout,
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() => {
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this._labelShowing = true;
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item.showLabel();
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this._showLabelTimeoutId = 0;
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return GLib.SOURCE_REMOVE;
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});
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GLib.Source.set_name_by_id(this._showLabelTimeoutId, '[gnome-shell] item.showLabel');
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if (this._resetHoverTimeoutId > 0) {
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Mainloop.source_remove(this._resetHoverTimeoutId);
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this._resetHoverTimeoutId = 0;
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}
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}
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} else {
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if (this._showLabelTimeoutId > 0)
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Mainloop.source_remove(this._showLabelTimeoutId);
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this._showLabelTimeoutId = 0;
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item.hideLabel();
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if (this._labelShowing) {
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this._resetHoverTimeoutId = Mainloop.timeout_add(DASH_ITEM_HOVER_TIMEOUT,
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() => {
|
|
this._labelShowing = false;
|
|
this._resetHoverTimeoutId = 0;
|
|
return GLib.SOURCE_REMOVE;
|
|
});
|
|
GLib.Source.set_name_by_id(this._resetHoverTimeoutId, '[gnome-shell] this._labelShowing');
|
|
}
|
|
}
|
|
}
|
|
|
|
_adjustIconSize() {
|
|
// For the icon size, we only consider children which are "proper"
|
|
// icons (i.e. ignoring drag placeholders) and which are not
|
|
// animating out (which means they will be destroyed at the end of
|
|
// the animation)
|
|
let iconChildren = this._box.get_children().filter(actor => {
|
|
return actor.child &&
|
|
actor.child._delegate &&
|
|
actor.child._delegate.icon &&
|
|
!actor.animatingOut;
|
|
});
|
|
|
|
iconChildren.push(this._showAppsIcon);
|
|
|
|
if (this._maxHeight == -1)
|
|
return;
|
|
|
|
let themeNode = this._container.get_theme_node();
|
|
let maxAllocation = new Clutter.ActorBox({ x1: 0, y1: 0,
|
|
x2: 42 /* whatever */,
|
|
y2: this._maxHeight });
|
|
let maxContent = themeNode.get_content_box(maxAllocation);
|
|
let availHeight = maxContent.y2 - maxContent.y1;
|
|
let spacing = themeNode.get_length('spacing');
|
|
|
|
let firstButton = iconChildren[0].child;
|
|
let firstIcon = firstButton._delegate.icon;
|
|
|
|
// Enforce valid spacings during the size request
|
|
firstIcon.icon.ensure_style();
|
|
let [, iconHeight] = firstIcon.icon.get_preferred_height(-1);
|
|
let [, buttonHeight] = firstButton.get_preferred_height(-1);
|
|
|
|
// Subtract icon padding and box spacing from the available height
|
|
availHeight -= iconChildren.length * (buttonHeight - iconHeight) +
|
|
(iconChildren.length - 1) * spacing;
|
|
|
|
let availSize = availHeight / iconChildren.length;
|
|
|
|
let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
|
|
let iconSizes = baseIconSizes.map(s => s * scaleFactor);
|
|
|
|
let newIconSize = baseIconSizes[0];
|
|
for (let i = 0; i < iconSizes.length; i++) {
|
|
if (iconSizes[i] < availSize)
|
|
newIconSize = baseIconSizes[i];
|
|
}
|
|
|
|
if (newIconSize == this.iconSize)
|
|
return;
|
|
|
|
let oldIconSize = this.iconSize;
|
|
this.iconSize = newIconSize;
|
|
this.emit('icon-size-changed');
|
|
|
|
let scale = oldIconSize / newIconSize;
|
|
for (let i = 0; i < iconChildren.length; i++) {
|
|
let icon = iconChildren[i].child._delegate.icon;
|
|
|
|
// Set the new size immediately, to keep the icons' sizes
|
|
// in sync with this.iconSize
|
|
icon.setIconSize(this.iconSize);
|
|
|
|
// Don't animate the icon size change when the overview
|
|
// is transitioning, not visible or when initially filling
|
|
// the dash
|
|
if (!Main.overview.visible || Main.overview.animationInProgress ||
|
|
!this._shownInitially)
|
|
continue;
|
|
|
|
let [targetWidth, targetHeight] = icon.icon.get_size();
|
|
|
|
// Scale the icon's texture to the previous size and
|
|
// tween to the new size
|
|
icon.icon.set_size(icon.icon.width * scale,
|
|
icon.icon.height * scale);
|
|
|
|
Tweener.addTween(icon.icon,
|
|
{ width: targetWidth,
|
|
height: targetHeight,
|
|
time: DASH_ANIMATION_TIME / 1000,
|
|
transition: 'easeOutQuad',
|
|
});
|
|
}
|
|
}
|
|
|
|
_redisplay() {
|
|
let favorites = AppFavorites.getAppFavorites().getFavoriteMap();
|
|
|
|
let running = this._appSystem.get_running();
|
|
|
|
let children = this._box.get_children().filter(actor => {
|
|
return actor.child &&
|
|
actor.child._delegate &&
|
|
actor.child._delegate.app;
|
|
});
|
|
// Apps currently in the dash
|
|
let oldApps = children.map(actor => actor.child._delegate.app);
|
|
// Apps supposed to be in the dash
|
|
let newApps = [];
|
|
|
|
for (let id in favorites)
|
|
newApps.push(favorites[id]);
|
|
|
|
for (let i = 0; i < running.length; i++) {
|
|
let app = running[i];
|
|
if (app.get_id() in favorites)
|
|
continue;
|
|
newApps.push(app);
|
|
}
|
|
|
|
// Figure out the actual changes to the list of items; we iterate
|
|
// over both the list of items currently in the dash and the list
|
|
// of items expected there, and collect additions and removals.
|
|
// Moves are both an addition and a removal, where the order of
|
|
// the operations depends on whether we encounter the position
|
|
// where the item has been added first or the one from where it
|
|
// was removed.
|
|
// There is an assumption that only one item is moved at a given
|
|
// time; when moving several items at once, everything will still
|
|
// end up at the right position, but there might be additional
|
|
// additions/removals (e.g. it might remove all the launchers
|
|
// and add them back in the new order even if a smaller set of
|
|
// additions and removals is possible).
|
|
// If above assumptions turns out to be a problem, we might need
|
|
// to use a more sophisticated algorithm, e.g. Longest Common
|
|
// Subsequence as used by diff.
|
|
let addedItems = [];
|
|
let removedActors = [];
|
|
|
|
let newIndex = 0;
|
|
let oldIndex = 0;
|
|
while (newIndex < newApps.length || oldIndex < oldApps.length) {
|
|
let oldApp = oldApps.length > oldIndex ? oldApps[oldIndex] : null;
|
|
let newApp = newApps.length > newIndex ? newApps[newIndex] : null;
|
|
|
|
// No change at oldIndex/newIndex
|
|
if (oldApp == newApp) {
|
|
oldIndex++;
|
|
newIndex++;
|
|
continue;
|
|
}
|
|
|
|
// App removed at oldIndex
|
|
if (oldApp && !newApps.includes(oldApp)) {
|
|
removedActors.push(children[oldIndex]);
|
|
oldIndex++;
|
|
continue;
|
|
}
|
|
|
|
// App added at newIndex
|
|
if (newApp && !oldApps.includes(newApp)) {
|
|
addedItems.push({ app: newApp,
|
|
item: this._createAppItem(newApp),
|
|
pos: newIndex });
|
|
newIndex++;
|
|
continue;
|
|
}
|
|
|
|
// App moved
|
|
let nextApp = newApps.length > newIndex + 1 ? newApps[newIndex + 1]
|
|
: null;
|
|
let insertHere = nextApp && nextApp == oldApp;
|
|
let alreadyRemoved = removedActors.reduce((result, actor) => {
|
|
let removedApp = actor.child._delegate.app;
|
|
return result || removedApp == newApp;
|
|
}, false);
|
|
|
|
if (insertHere || alreadyRemoved) {
|
|
let newItem = this._createAppItem(newApp);
|
|
addedItems.push({ app: newApp,
|
|
item: newItem,
|
|
pos: newIndex + removedActors.length });
|
|
newIndex++;
|
|
} else {
|
|
removedActors.push(children[oldIndex]);
|
|
oldIndex++;
|
|
}
|
|
}
|
|
|
|
for (let i = 0; i < addedItems.length; i++)
|
|
this._box.insert_child_at_index(addedItems[i].item,
|
|
addedItems[i].pos);
|
|
|
|
for (let i = 0; i < removedActors.length; i++) {
|
|
let item = removedActors[i];
|
|
|
|
// Don't animate item removal when the overview is transitioning
|
|
// or hidden
|
|
if (Main.overview.visible && !Main.overview.animationInProgress)
|
|
item.animateOutAndDestroy();
|
|
else
|
|
item.destroy();
|
|
}
|
|
|
|
this._adjustIconSize();
|
|
|
|
// Skip animations on first run when adding the initial set
|
|
// of items, to avoid all items zooming in at once
|
|
|
|
let animate = this._shownInitially && Main.overview.visible &&
|
|
!Main.overview.animationInProgress;
|
|
|
|
if (!this._shownInitially)
|
|
this._shownInitially = true;
|
|
|
|
for (let i = 0; i < addedItems.length; i++) {
|
|
addedItems[i].item.show(animate);
|
|
}
|
|
|
|
// Workaround for https://bugzilla.gnome.org/show_bug.cgi?id=692744
|
|
// Without it, StBoxLayout may use a stale size cache
|
|
this._box.queue_relayout();
|
|
}
|
|
|
|
_clearDragPlaceholder() {
|
|
if (this._dragPlaceholder) {
|
|
this._animatingPlaceholdersCount++;
|
|
this._dragPlaceholder.animateOutAndDestroy();
|
|
this._dragPlaceholder.connect('destroy', () => {
|
|
this._animatingPlaceholdersCount--;
|
|
});
|
|
this._dragPlaceholder = null;
|
|
}
|
|
this._dragPlaceholderPos = -1;
|
|
}
|
|
|
|
_clearEmptyDropTarget() {
|
|
if (this._emptyDropTarget) {
|
|
this._emptyDropTarget.animateOutAndDestroy();
|
|
this._emptyDropTarget = null;
|
|
}
|
|
}
|
|
|
|
handleDragOver(source, actor, x, y, _time) {
|
|
let app = getAppFromSource(source);
|
|
|
|
// Don't allow favoriting of transient apps
|
|
if (app == null || app.is_window_backed())
|
|
return DND.DragMotionResult.NO_DROP;
|
|
|
|
if (!global.settings.is_writable('favorite-apps'))
|
|
return DND.DragMotionResult.NO_DROP;
|
|
|
|
let favorites = AppFavorites.getAppFavorites().getFavorites();
|
|
let numFavorites = favorites.length;
|
|
|
|
let favPos = favorites.indexOf(app);
|
|
|
|
let children = this._box.get_children();
|
|
let numChildren = children.length;
|
|
let boxHeight = this._box.height;
|
|
|
|
// Keep the placeholder out of the index calculation; assuming that
|
|
// the remove target has the same size as "normal" items, we don't
|
|
// need to do the same adjustment there.
|
|
if (this._dragPlaceholder) {
|
|
boxHeight -= this._dragPlaceholder.height;
|
|
numChildren--;
|
|
}
|
|
|
|
let pos;
|
|
if (!this._emptyDropTarget)
|
|
pos = Math.floor(y * numChildren / boxHeight);
|
|
else
|
|
pos = 0; // always insert at the top when dash is empty
|
|
|
|
if (pos != this._dragPlaceholderPos && pos <= numFavorites && this._animatingPlaceholdersCount == 0) {
|
|
this._dragPlaceholderPos = pos;
|
|
|
|
// Don't allow positioning before or after self
|
|
if (favPos != -1 && (pos == favPos || pos == favPos + 1)) {
|
|
this._clearDragPlaceholder();
|
|
return DND.DragMotionResult.CONTINUE;
|
|
}
|
|
|
|
// If the placeholder already exists, we just move
|
|
// it, but if we are adding it, expand its size in
|
|
// an animation
|
|
let fadeIn;
|
|
if (this._dragPlaceholder) {
|
|
this._dragPlaceholder.destroy();
|
|
fadeIn = false;
|
|
} else {
|
|
fadeIn = true;
|
|
}
|
|
|
|
this._dragPlaceholder = new DragPlaceholderItem();
|
|
this._dragPlaceholder.child.set_width (this.iconSize);
|
|
this._dragPlaceholder.child.set_height (this.iconSize / 2);
|
|
this._box.insert_child_at_index(this._dragPlaceholder,
|
|
this._dragPlaceholderPos);
|
|
this._dragPlaceholder.show(fadeIn);
|
|
}
|
|
|
|
// Remove the drag placeholder if we are not in the
|
|
// "favorites zone"
|
|
if (pos > numFavorites)
|
|
this._clearDragPlaceholder();
|
|
|
|
if (!this._dragPlaceholder)
|
|
return DND.DragMotionResult.NO_DROP;
|
|
|
|
let srcIsFavorite = (favPos != -1);
|
|
|
|
if (srcIsFavorite)
|
|
return DND.DragMotionResult.MOVE_DROP;
|
|
|
|
return DND.DragMotionResult.COPY_DROP;
|
|
}
|
|
|
|
// Draggable target interface
|
|
acceptDrop(source, _actor, _x, _y, _time) {
|
|
let app = getAppFromSource(source);
|
|
|
|
// Don't allow favoriting of transient apps
|
|
if (app == null || app.is_window_backed()) {
|
|
return false;
|
|
}
|
|
|
|
if (!global.settings.is_writable('favorite-apps'))
|
|
return false;
|
|
|
|
let id = app.get_id();
|
|
|
|
let favorites = AppFavorites.getAppFavorites().getFavoriteMap();
|
|
|
|
let srcIsFavorite = (id in favorites);
|
|
|
|
let favPos = 0;
|
|
let children = this._box.get_children();
|
|
for (let i = 0; i < this._dragPlaceholderPos; i++) {
|
|
if (this._dragPlaceholder &&
|
|
children[i] == this._dragPlaceholder)
|
|
continue;
|
|
|
|
let childId = children[i].child._delegate.app.get_id();
|
|
if (childId == id)
|
|
continue;
|
|
if (childId in favorites)
|
|
favPos++;
|
|
}
|
|
|
|
// No drag placeholder means we don't want to favorite the app
|
|
// and we are dragging it to its original position
|
|
if (!this._dragPlaceholder)
|
|
return true;
|
|
|
|
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
|
|
let appFavorites = AppFavorites.getAppFavorites();
|
|
if (srcIsFavorite)
|
|
appFavorites.moveFavoriteToPos(id, favPos);
|
|
else
|
|
appFavorites.addFavoriteAtPos(id, favPos);
|
|
return false;
|
|
});
|
|
|
|
return true;
|
|
}
|
|
};
|
|
Signals.addSignalMethods(Dash.prototype);
|