953 lines
32 KiB
JavaScript
953 lines
32 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Clutter = imports.gi.Clutter;
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const Signals = imports.signals;
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const Lang = imports.lang;
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const Meta = imports.gi.Meta;
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const Shell = imports.gi.Shell;
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const St = imports.gi.St;
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const Mainloop = imports.mainloop;
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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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const Workspace = imports.ui.workspace;
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const DASH_ANIMATION_TIME = 0.2;
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const DASH_ITEM_LABEL_SHOW_TIME = 0.15;
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const DASH_ITEM_LABEL_HIDE_TIME = 0.1;
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const DASH_ITEM_HOVER_TIMEOUT = 300;
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function getAppFromSource(source) {
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if (source instanceof AppDisplay.AppWellIcon) {
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let appSystem = Shell.AppSystem.get_default();
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return appSystem.lookup_app(source.getId());
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} else if (source.metaWindow) {
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let tracker = Shell.WindowTracker.get_default();
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return tracker.get_window_app(source.metaWindow);
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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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const DashItemContainer = new Lang.Class({
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Name: 'DashItemContainer',
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_init: function() {
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this.actor = new Shell.GenericContainer({ style_class: 'dash-item-container' });
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this.actor.connect('get-preferred-width',
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Lang.bind(this, this._getPreferredWidth));
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this.actor.connect('get-preferred-height',
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Lang.bind(this, this._getPreferredHeight));
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this.actor.connect('allocate',
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Lang.bind(this, this._allocate));
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this.actor._delegate = this;
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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.actor.label_actor = this.label;
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this.child = null;
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this._childScale = 1;
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this._childOpacity = 255;
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this.animatingOut = false;
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},
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_allocate: function(actor, box, flags) {
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if (this.child == null)
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return;
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let availWidth = box.x2 - box.x1;
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let availHeight = box.y2 - box.y1;
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let [minChildWidth, minChildHeight, natChildWidth, natChildHeight] =
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this.child.get_preferred_size();
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let [childScaleX, childScaleY] = this.child.get_scale();
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let childWidth = Math.min(natChildWidth * childScaleX, availWidth);
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let childHeight = Math.min(natChildHeight * childScaleY, availHeight);
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let childBox = new Clutter.ActorBox();
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childBox.x1 = (availWidth - childWidth) / 2;
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childBox.y1 = (availHeight - childHeight) / 2;
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childBox.x2 = childBox.x1 + childWidth;
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childBox.y2 = childBox.y1 + childHeight;
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this.child.allocate(childBox, flags);
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},
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_getPreferredHeight: function(actor, forWidth, alloc) {
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alloc.min_size = 0;
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alloc.natural_size = 0;
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if (this.child == null)
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return;
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let [minHeight, natHeight] = this.child.get_preferred_height(forWidth);
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alloc.min_size += minHeight * this.child.scale_y;
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alloc.natural_size += natHeight * this.child.scale_y;
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},
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_getPreferredWidth: function(actor, forHeight, alloc) {
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alloc.min_size = 0;
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alloc.natural_size = 0;
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if (this.child == null)
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return;
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let [minWidth, natWidth] = this.child.get_preferred_width(forHeight);
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alloc.min_size = minWidth * this.child.scale_y;
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alloc.natural_size = natWidth * this.child.scale_y;
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},
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showLabel: function() {
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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.actor.get_transformed_position();
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let itemHeight = this.actor.allocation.y2 - this.actor.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.actor.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,
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transition: 'easeOutQuad',
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});
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},
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setLabelText: function(text) {
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this._labelText = text;
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},
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hideLabel: function () {
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Tweener.addTween(this.label,
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{ opacity: 0,
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time: DASH_ITEM_LABEL_HIDE_TIME,
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transition: 'easeOutQuad',
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onComplete: Lang.bind(this, function() {
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this.label.hide();
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})
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});
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},
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setChild: function(actor) {
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if (this.child == actor)
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return;
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this.actor.destroy_all_children();
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this.child = actor;
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this.actor.add_actor(this.child);
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},
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animateIn: function() {
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if (this.child == null)
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return;
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this.childScale = 0;
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this.childOpacity = 0;
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Tweener.addTween(this,
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{ childScale: 1.0,
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childOpacity: 255,
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time: DASH_ANIMATION_TIME,
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transition: 'easeOutQuad'
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});
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},
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destroy: function() {
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if (this.label)
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this.label.destroy();
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this.actor.destroy();
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},
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animateOutAndDestroy: function() {
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if (this.label)
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this.label.destroy();
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if (this.child == null) {
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this.actor.destroy();
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return;
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}
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this.animatingOut = true;
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this.childScale = 1.0;
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Tweener.addTween(this,
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{ childScale: 0.0,
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childOpacity: 0,
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time: DASH_ANIMATION_TIME,
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transition: 'easeOutQuad',
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onComplete: Lang.bind(this, function() {
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this.actor.destroy();
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})
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});
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},
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set childScale(scale) {
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this._childScale = scale;
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if (this.child == null)
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return;
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this.child.set_scale_with_gravity(scale, scale,
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Clutter.Gravity.CENTER);
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this.actor.queue_relayout();
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},
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get childScale() {
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return this._childScale;
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},
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set childOpacity(opacity) {
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this._childOpacity = opacity;
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if (this.child == null)
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return;
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this.child.set_opacity(opacity);
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this.actor.queue_redraw();
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},
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get childOpacity() {
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return this._childOpacity;
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}
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});
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const ShowAppsIcon = new Lang.Class({
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Name: 'ShowAppsIcon',
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Extends: DashItemContainer,
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_init: function() {
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this.parent();
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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: Lang.bind(this, this._createIcon) });
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this.toggleButton.add_actor(this.icon.actor);
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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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this.toggleButton.label_actor = this.label;
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},
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_createIcon: function(size) {
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this._iconActor = new St.Icon({ icon_name: 'view-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: function(app) {
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if (app == null)
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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: function(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: function(source, actor, x, y, time) {
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let app = getAppFromSource(source);
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if (app == null)
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return DND.DragMotionResult.NO_DROP;
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let id = app.get_id();
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let isFavorite = AppFavorites.getAppFavorites().isFavorite(id);
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if (!isFavorite)
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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: function(source, actor, x, y, time) {
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let app = getAppFromSource(source);
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if (app == null)
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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, Lang.bind(this,
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function () {
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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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const DragPlaceholderItem = new Lang.Class({
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Name: 'DragPlaceholderItem',
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Extends: DashItemContainer,
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_init: function() {
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this.parent();
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this.setChild(new St.Bin({ style_class: 'placeholder' }));
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}
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});
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const DashActor = new Lang.Class({
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Name: 'DashActor',
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Extends: St.Widget,
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_init: function() {
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let layout = new Clutter.BoxLayout({ orientation: Clutter.Orientation.VERTICAL });
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this.parent({ 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: function(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 [showAppsMinHeight, 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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});
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const Dash = new Lang.Class({
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Name: 'Dash',
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_init : function() {
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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.visible = false;
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this._hiddenX;
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this._targetX;
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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._showAppsIcon = new ShowAppsIcon();
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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.actor);
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this.actor = new St.Bin({ child: this._container });
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this.actor.connect('notify::height', Lang.bind(this,
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function() {
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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, Lang.bind(this, this._redisplay));
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this._appSystem = Shell.AppSystem.get_default();
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this._appSystem.connect('installed-changed', Lang.bind(this, this._queueRedisplay));
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AppFavorites.getAppFavorites().connect('changed', Lang.bind(this, this._queueRedisplay));
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this._appSystem.connect('app-state-changed', Lang.bind(this, this._queueRedisplay));
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Main.overview.connect('app-drag-begin',
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Lang.bind(this, this._onDragBegin));
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Main.overview.connect('app-drag-end',
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Lang.bind(this, this._onDragEnd));
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Main.overview.connect('app-drag-cancelled',
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Lang.bind(this, this._onDragCancelled));
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Main.overview.connect('window-drag-begin',
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Lang.bind(this, this._onDragBegin));
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Main.overview.connect('window-drag-cancelled',
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Lang.bind(this, this._onDragCancelled));
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Main.overview.connect('window-drag-end',
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Lang.bind(this, this._onDragEnd));
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},
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_onDragBegin: function() {
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this._dragCancelled = false;
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this._dragMonitor = {
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dragMotion: Lang.bind(this, this._onDragMotion)
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};
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DND.addDragMonitor(this._dragMonitor);
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},
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_onDragCancelled: function() {
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this._dragCancelled = true;
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this._endDrag();
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},
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_onDragEnd: function() {
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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: function() {
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this._clearDragPlaceholder();
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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: function(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.actor.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: function(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: function () {
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Main.queueDeferredWork(this._workId);
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},
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_hookUpLabel: function(item) {
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item.child.connect('notify::hover', Lang.bind(this, function() {
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this._onHover(item);
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}));
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Main.overview.connect('hiding', Lang.bind(this, function() {
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this._labelShowing = false;
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item.hideLabel();
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}));
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},
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_createAppItem: function(app) {
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let display = new AppDisplay.AppWellIcon(app,
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{ setSizeManually: true,
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showLabel: false });
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display._draggable.connect('drag-begin',
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Lang.bind(this, function() {
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display.actor.opacity = 50;
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}));
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display._draggable.connect('drag-end',
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Lang.bind(this, function() {
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display.actor.opacity = 255;
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}));
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let item = new DashItemContainer();
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item.setChild(display.actor);
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item.setLabelText(app.get_name());
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// Override default AppWellIcon label_actor
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display.actor.label_actor = item.label;
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display.icon.setIconSize(this.iconSize);
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this._hookUpLabel(item);
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return item;
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},
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_onHover: function (item) {
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if (item.child.get_hover() && !item.child._delegate.isMenuUp) {
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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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Lang.bind(this, function() {
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this._labelShowing = true;
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item.showLabel();
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return false;
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}));
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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();
|
|
if (this._labelShowing) {
|
|
this._resetHoverTimeoutId = Mainloop.timeout_add(DASH_ITEM_HOVER_TIMEOUT,
|
|
Lang.bind(this, function() {
|
|
this._labelShowing = false;
|
|
return false;
|
|
}));
|
|
}
|
|
}
|
|
},
|
|
|
|
_computeDashX: function() {
|
|
this._targetX = this.actor.get_x();
|
|
|
|
let rtl = (this.actor.get_text_direction() == Clutter.TextDirection.RTL);
|
|
|
|
if (rtl)
|
|
this._hiddenX = this._targetX + this.actor.width;
|
|
else
|
|
this._hiddenX = -this.actor.width;
|
|
},
|
|
|
|
_adjustIconSize: function() {
|
|
// 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(function(actor) {
|
|
return actor._delegate.child &&
|
|
actor._delegate.child._delegate &&
|
|
actor._delegate.child._delegate.icon &&
|
|
!actor._delegate.animatingOut;
|
|
});
|
|
|
|
iconChildren.push(this._showAppsIcon.actor);
|
|
|
|
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 firstIcon = iconChildren[0]._delegate.child._delegate.icon;
|
|
|
|
let minHeight, natHeight;
|
|
|
|
// Enforce the current icon size during the size request if
|
|
// the icon is animating
|
|
if (firstIcon._animating) {
|
|
let [currentWidth, currentHeight] = firstIcon.icon.get_size();
|
|
|
|
firstIcon.icon.set_size(this.iconSize, this.iconSize);
|
|
[minHeight, natHeight] = iconChildren[0].get_preferred_height(-1);
|
|
|
|
firstIcon.icon.set_size(currentWidth, currentHeight);
|
|
} else {
|
|
[minHeight, natHeight] = iconChildren[0].get_preferred_height(-1);
|
|
}
|
|
|
|
// Subtract icon padding and box spacing from the available height
|
|
availHeight -= iconChildren.length * (natHeight - this.iconSize) +
|
|
(iconChildren.length - 1) * spacing;
|
|
|
|
let availSize = availHeight / iconChildren.length;
|
|
|
|
let iconSizes = [ 16, 22, 24, 32, 48, 64 ];
|
|
|
|
let newIconSize = 16;
|
|
for (let i = 0; i < iconSizes.length; i++) {
|
|
if (iconSizes[i] < availSize)
|
|
newIconSize = iconSizes[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]._delegate.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 not visible or when initially filling the dash
|
|
if (!Main.overview.visible || !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);
|
|
|
|
icon._animating = true;
|
|
Tweener.addTween(icon.icon,
|
|
{ width: targetWidth,
|
|
height: targetHeight,
|
|
time: DASH_ANIMATION_TIME,
|
|
transition: 'easeOutQuad',
|
|
onComplete: function() {
|
|
icon._animating = false;
|
|
}
|
|
});
|
|
}
|
|
|
|
this._computeDashX();
|
|
},
|
|
|
|
_redisplay: function () {
|
|
let favorites = AppFavorites.getAppFavorites().getFavoriteMap();
|
|
|
|
let running = this._appSystem.get_running();
|
|
|
|
let children = this._box.get_children().filter(function(actor) {
|
|
return actor._delegate.child &&
|
|
actor._delegate.child._delegate &&
|
|
actor._delegate.child._delegate.app;
|
|
});
|
|
// Apps currently in the dash
|
|
let oldApps = children.map(function(actor) {
|
|
return actor._delegate.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) {
|
|
// No change at oldIndex/newIndex
|
|
if (oldApps[oldIndex] == newApps[newIndex]) {
|
|
oldIndex++;
|
|
newIndex++;
|
|
continue;
|
|
}
|
|
|
|
// App removed at oldIndex
|
|
if (oldApps[oldIndex] &&
|
|
newApps.indexOf(oldApps[oldIndex]) == -1) {
|
|
removedActors.push(children[oldIndex]);
|
|
oldIndex++;
|
|
continue;
|
|
}
|
|
|
|
// App added at newIndex
|
|
if (newApps[newIndex] &&
|
|
oldApps.indexOf(newApps[newIndex]) == -1) {
|
|
addedItems.push({ app: newApps[newIndex],
|
|
item: this._createAppItem(newApps[newIndex]),
|
|
pos: newIndex });
|
|
newIndex++;
|
|
continue;
|
|
}
|
|
|
|
// App moved
|
|
let insertHere = newApps[newIndex + 1] &&
|
|
newApps[newIndex + 1] == oldApps[oldIndex];
|
|
let alreadyRemoved = removedActors.reduce(function(result, actor) {
|
|
let removedApp = actor._delegate.child._delegate.app;
|
|
return result || removedApp == newApps[newIndex];
|
|
}, false);
|
|
|
|
if (insertHere || alreadyRemoved) {
|
|
let newItem = this._createAppItem(newApps[newIndex]);
|
|
addedItems.push({ app: newApps[newIndex],
|
|
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.actor,
|
|
addedItems[i].pos);
|
|
|
|
for (let i = 0; i < removedActors.length; i++) {
|
|
let item = removedActors[i]._delegate;
|
|
|
|
// Don't animate item removal when the overview is hidden
|
|
if (Main.overview.visible)
|
|
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
|
|
if (!this._shownInitially) {
|
|
this._shownInitially = true;
|
|
this.visible = true;
|
|
return;
|
|
}
|
|
|
|
// Don't animate item addition when the overview is hidden
|
|
if (!Main.overview.visible)
|
|
return;
|
|
|
|
for (let i = 0; i < addedItems.length; i++)
|
|
addedItems[i].item.animateIn();
|
|
},
|
|
|
|
_clearDragPlaceholder: function() {
|
|
if (this._dragPlaceholder) {
|
|
this._dragPlaceholder.animateOutAndDestroy();
|
|
this._dragPlaceholder = null;
|
|
this._dragPlaceholderPos = -1;
|
|
}
|
|
},
|
|
|
|
handleDragOver : function(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;
|
|
|
|
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.actor.height;
|
|
numChildren--;
|
|
}
|
|
|
|
let pos = Math.floor(y * numChildren / boxHeight);
|
|
|
|
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)) {
|
|
if (this._dragPlaceholder) {
|
|
this._dragPlaceholder.animateOutAndDestroy();
|
|
this._animatingPlaceholdersCount++;
|
|
this._dragPlaceholder.actor.connect('destroy',
|
|
Lang.bind(this, function() {
|
|
this._animatingPlaceholdersCount--;
|
|
}));
|
|
}
|
|
this._dragPlaceholder = null;
|
|
|
|
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.actor.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.actor,
|
|
this._dragPlaceholderPos);
|
|
if (fadeIn)
|
|
this._dragPlaceholder.animateIn();
|
|
}
|
|
|
|
// Remove the drag placeholder if we are not in the
|
|
// "favorites zone"
|
|
if (pos > numFavorites && this._dragPlaceholder) {
|
|
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 : function(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;
|
|
}
|
|
|
|
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.actor)
|
|
continue;
|
|
|
|
let childId = children[i]._delegate.child._delegate.app.get_id();
|
|
if (childId == id)
|
|
continue;
|
|
if (childId in favorites)
|
|
favPos++;
|
|
}
|
|
|
|
// No drag placeholder means we don't wan't 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, Lang.bind(this,
|
|
function () {
|
|
let appFavorites = AppFavorites.getAppFavorites();
|
|
if (srcIsFavorite)
|
|
appFavorites.moveFavoriteToPos(id, favPos);
|
|
else
|
|
appFavorites.addFavoriteAtPos(id, favPos);
|
|
return false;
|
|
}));
|
|
|
|
return true;
|
|
},
|
|
|
|
show: function() {
|
|
if (this.visible)
|
|
return;
|
|
|
|
this.visible = true;
|
|
|
|
this.actor.show();
|
|
Tweener.addTween(this.actor, { translation_x: this._targetX,
|
|
transition: 'easeOutQuad',
|
|
time: DASH_ANIMATION_TIME
|
|
});
|
|
},
|
|
|
|
hide: function() {
|
|
if (!this.visible)
|
|
return;
|
|
|
|
this.visible = false;
|
|
|
|
Tweener.addTween(this.actor, { translation_x: this._hiddenX,
|
|
transition: 'easeOutQuad',
|
|
time: DASH_ANIMATION_TIME,
|
|
onComplete: Lang.bind(this, function () {
|
|
this.actor.hide();
|
|
})
|
|
});
|
|
}
|
|
});
|
|
|
|
Signals.addSignalMethods(Dash.prototype);
|