739 lines
25 KiB
JavaScript
739 lines
25 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 Lang = imports.lang;
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const Gio = imports.gi.Gio;
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const Gtk = imports.gi.Gtk;
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const Meta = imports.gi.Meta;
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const Signals = imports.signals;
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const St = imports.gi.St;
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const Atk = imports.gi.Atk;
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const AppDisplay = imports.ui.appDisplay;
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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 Overview = imports.ui.overview;
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const RemoteSearch = imports.ui.remoteSearch;
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const Separator = imports.ui.separator;
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const Util = imports.misc.util;
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const SEARCH_PROVIDERS_SCHEMA = 'org.gnome.desktop.search-providers';
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const MAX_LIST_SEARCH_RESULTS_ROWS = 3;
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const MAX_GRID_SEARCH_RESULTS_ROWS = 1;
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const SearchSystem = new Lang.Class({
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Name: 'SearchSystem',
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_init: function() {
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this._providers = [];
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this._registerProvider(new AppDisplay.AppSearchProvider());
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this._searchSettings = new Gio.Settings({ schema_id: SEARCH_PROVIDERS_SCHEMA });
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this._searchSettings.connect('changed::enabled', Lang.bind(this, this._reloadRemoteProviders));
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this._searchSettings.connect('changed::disabled', Lang.bind(this, this._reloadRemoteProviders));
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this._searchSettings.connect('changed::disable-external', Lang.bind(this, this._reloadRemoteProviders));
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this._searchSettings.connect('changed::sort-order', Lang.bind(this, this._reloadRemoteProviders));
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this._reloadRemoteProviders();
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this._cancellable = new Gio.Cancellable();
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},
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addProvider: function(provider) {
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this._providers.push(provider);
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this.emit('providers-changed');
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},
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_reloadRemoteProviders: function() {
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let remoteProviders = this._providers.filter(function(provider) {
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return provider.isRemoteProvider;
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});
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remoteProviders.forEach(Lang.bind(this, function(provider) {
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this._unregisterProvider(provider);
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}));
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RemoteSearch.loadRemoteSearchProviders(Lang.bind(this, function(providers) {
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providers.forEach(Lang.bind(this, this._registerProvider));
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}));
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this.emit('providers-changed');
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},
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_registerProvider: function (provider) {
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this._providers.push(provider);
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},
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_unregisterProvider: function (provider) {
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let index = this._providers.indexOf(provider);
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this._providers.splice(index, 1);
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if (provider.display)
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provider.display.destroy();
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},
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getProviders: function() {
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return this._providers;
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},
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getTerms: function() {
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return this._terms;
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},
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reset: function() {
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this._terms = [];
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this._results = {};
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},
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_gotResults: function(results, provider) {
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this._results[provider.id] = results;
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this.emit('search-updated', provider, results);
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},
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setTerms: function(terms) {
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this._cancellable.cancel();
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this._cancellable.reset();
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let previousResults = this._results;
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let previousTerms = this._terms;
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this.reset();
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if (!terms)
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return;
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let searchString = terms.join(' ');
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let previousSearchString = previousTerms.join(' ');
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if (searchString == previousSearchString)
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return;
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let isSubSearch = false;
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if (previousTerms.length > 0)
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isSubSearch = searchString.indexOf(previousSearchString) == 0;
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this._terms = terms;
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this._providers.forEach(Lang.bind(this, function(provider) {
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let previousProviderResults = previousResults[provider.id];
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if (isSubSearch && previousProviderResults)
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provider.getSubsearchResultSet(previousProviderResults, terms, Lang.bind(this, this._gotResults, provider), this._cancellable);
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else
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provider.getInitialResultSet(terms, Lang.bind(this, this._gotResults, provider), this._cancellable);
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}));
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}
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});
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Signals.addSignalMethods(SearchSystem.prototype);
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const MaxWidthBin = new Lang.Class({
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Name: 'MaxWidthBin',
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Extends: St.Bin,
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vfunc_allocate: function(box, flags) {
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let themeNode = this.get_theme_node();
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let maxWidth = themeNode.get_max_width();
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let availWidth = box.x2 - box.x1;
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let adjustedBox = box;
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if (availWidth > maxWidth) {
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let excessWidth = availWidth - maxWidth;
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adjustedBox.x1 += Math.floor(excessWidth / 2);
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adjustedBox.x2 -= Math.floor(excessWidth / 2);
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}
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this.parent(adjustedBox, flags);
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}
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});
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const SearchResult = new Lang.Class({
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Name: 'SearchResult',
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_init: function(provider, metaInfo) {
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this.provider = provider;
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this.metaInfo = metaInfo;
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this.actor = new St.Button({ reactive: true,
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can_focus: true,
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track_hover: true,
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x_align: St.Align.START,
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y_fill: true });
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this.actor._delegate = this;
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this.actor.connect('clicked', Lang.bind(this, this.activate));
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},
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activate: function() {
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this.emit('activate', this.metaInfo.id);
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},
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setSelected: function(selected) {
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if (selected)
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this.actor.add_style_pseudo_class('selected');
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else
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this.actor.remove_style_pseudo_class('selected');
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}
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});
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Signals.addSignalMethods(SearchResult.prototype);
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const ListSearchResult = new Lang.Class({
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Name: 'ListSearchResult',
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Extends: SearchResult,
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ICON_SIZE: 64,
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_init: function(provider, metaInfo) {
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this.parent(provider, metaInfo);
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this.actor.style_class = 'list-search-result';
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this.actor.x_fill = true;
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let content = new St.BoxLayout({ style_class: 'list-search-result-content',
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vertical: false });
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this.actor.set_child(content);
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// An icon for, or thumbnail of, content
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let icon = this.metaInfo['createIcon'](this.ICON_SIZE);
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if (icon) {
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content.add(icon);
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}
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let details = new St.BoxLayout({ vertical: true });
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content.add(details, { x_fill: true,
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y_fill: false,
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x_align: St.Align.START,
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y_align: St.Align.MIDDLE });
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let title = new St.Label({ style_class: 'list-search-result-title',
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text: this.metaInfo['name'] })
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details.add(title, { x_fill: false,
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y_fill: false,
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x_align: St.Align.START,
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y_align: St.Align.START });
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this.actor.label_actor = title;
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if (this.metaInfo['description']) {
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let description = new St.Label({ style_class: 'list-search-result-description' });
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description.clutter_text.set_markup(this.metaInfo['description']);
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details.add(description, { x_fill: false,
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y_fill: false,
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x_align: St.Align.START,
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y_align: St.Align.END });
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}
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}
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});
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const GridSearchResult = new Lang.Class({
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Name: 'GridSearchResult',
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Extends: SearchResult,
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_init: function(provider, metaInfo) {
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this.parent(provider, metaInfo);
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this.actor.style_class = 'grid-search-result';
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let content = provider.createResultObject(metaInfo);
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let dragSource = null;
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if (content == null) {
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let actor = new St.Bin();
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let icon = new IconGrid.BaseIcon(this.metaInfo['name'],
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{ createIcon: this.metaInfo['createIcon'] });
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actor.set_child(icon.actor);
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actor.label_actor = icon.label;
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dragSource = icon.icon;
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content = { actor: actor, icon: icon };
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} else {
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if (content._delegate && content._delegate.getDragActorSource)
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dragSource = content._delegate.getDragActorSource();
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}
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this.actor.set_child(content.actor);
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this.actor.label_actor = content.actor.label_actor;
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this.icon = content.icon;
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let draggable = DND.makeDraggable(this.actor);
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draggable.connect('drag-begin',
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Lang.bind(this, function() {
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Main.overview.beginItemDrag(this);
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}));
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draggable.connect('drag-cancelled',
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Lang.bind(this, function() {
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Main.overview.cancelledItemDrag(this);
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}));
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draggable.connect('drag-end',
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Lang.bind(this, function() {
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Main.overview.endItemDrag(this);
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}));
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if (!dragSource)
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// not exactly right, but alignment problems are hard to notice
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dragSource = content;
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this._dragActorSource = dragSource;
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},
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getDragActorSource: function() {
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return this._dragActorSource;
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},
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getDragActor: function() {
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return this.metaInfo['createIcon'](Main.overview.dashIconSize);
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},
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shellWorkspaceLaunch: function(params) {
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if (this.provider.dragActivateResult)
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this.provider.dragActivateResult(this.metaInfo.id, params);
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else
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this.provider.activateResult(this.metaInfo.id, this.terms);
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}
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});
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const SearchResultsBase = new Lang.Class({
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Name: 'SearchResultsBase',
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_init: function(provider) {
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this.provider = provider;
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this._terms = [];
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this.actor = new St.BoxLayout({ style_class: 'search-section',
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vertical: true });
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this._resultDisplayBin = new St.Bin({ x_fill: true,
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y_fill: true });
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this.actor.add(this._resultDisplayBin, { expand: true });
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let separator = new Separator.HorizontalSeparator({ style_class: 'search-section-separator' });
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this.actor.add(separator.actor);
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this._resultDisplays = {};
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this._cancellable = new Gio.Cancellable();
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},
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destroy: function() {
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this.actor.destroy();
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this._terms = [];
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},
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_clearResultDisplay: function() {
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},
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clear: function() {
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for (let resultId in this._resultDisplays)
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this._resultDisplays[resultId].actor.destroy();
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this._resultDisplays = {};
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this._clearResultDisplay();
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this.actor.hide();
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},
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_keyFocusIn: function(actor) {
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this.emit('key-focus-in', actor);
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},
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_activateResult: function(result, id) {
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this.provider.activateResult(id, this._terms);
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Main.overview.toggle();
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},
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_setMoreIconVisible: function(visible) {
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},
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_ensureResultActors: function(results, callback) {
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let metasNeeded = results.filter(Lang.bind(this, function(resultId) {
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return this._resultDisplays[resultId] === undefined;
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}));
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if (metasNeeded.length === 0) {
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callback(true);
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} else {
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this._cancellable.cancel();
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this._cancellable.reset();
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this.provider.getResultMetas(metasNeeded, Lang.bind(this, function(metas) {
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if (metas.length == 0) {
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callback(false);
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return;
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}
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if (metas.length != metasNeeded.length) {
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log('Wrong number of result metas returned by search provider');
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callback(false);
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return;
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}
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metasNeeded.forEach(Lang.bind(this, function(resultId, i) {
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let meta = metas[i];
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let display = this._createResultDisplay(meta);
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display.connect('activate', Lang.bind(this, this._activateResult));
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display.actor.connect('key-focus-in', Lang.bind(this, this._keyFocusIn));
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this._resultDisplays[resultId] = display;
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}));
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callback(true);
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}), this._cancellable);
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}
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},
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updateSearch: function(providerResults, terms, callback) {
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this._terms = terms;
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if (providerResults.length == 0) {
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this._clearResultDisplay();
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this.actor.hide();
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callback();
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} else {
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let maxResults = this._getMaxDisplayedResults();
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let results = this.provider.filterResults(providerResults, maxResults);
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let hasMoreResults = results.length < providerResults.length;
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this._ensureResultActors(results, Lang.bind(this, function(successful) {
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this._clearResultDisplay();
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if (!successful)
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return;
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// To avoid CSS transitions causing flickering when
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// the first search result stays the same, we hide the
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// content while filling in the results.
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this.actor.hide();
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this._clearResultDisplay();
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results.forEach(Lang.bind(this, function(resultId) {
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this._addItem(this._resultDisplays[resultId]);
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}));
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this._setMoreIconVisible(hasMoreResults && this.provider.canLaunchSearch);
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this.actor.show();
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callback();
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}));
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}
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}
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});
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const ListSearchResults = new Lang.Class({
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Name: 'ListSearchResults',
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Extends: SearchResultsBase,
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_init: function(provider) {
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this.parent(provider);
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this._container = new St.BoxLayout({ style_class: 'search-section-content' });
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this.providerIcon = new ProviderIcon(provider);
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this.providerIcon.connect('key-focus-in', Lang.bind(this, this._keyFocusIn));
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this.providerIcon.connect('clicked', Lang.bind(this,
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function() {
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provider.launchSearch(this._terms);
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Main.overview.toggle();
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}));
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this._container.add(this.providerIcon, { x_fill: false,
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y_fill: false,
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x_align: St.Align.START,
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y_align: St.Align.START });
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this._content = new St.BoxLayout({ style_class: 'list-search-results',
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vertical: true });
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this._container.add(this._content, { expand: true });
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this._resultDisplayBin.set_child(this._container);
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},
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_setMoreIconVisible: function(visible) {
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this.providerIcon.moreIcon.visible = visible;
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},
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_getMaxDisplayedResults: function() {
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return MAX_LIST_SEARCH_RESULTS_ROWS;
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},
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_clearResultDisplay: function () {
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this._content.remove_all_children();
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},
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_createResultDisplay: function(meta) {
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return new ListSearchResult(this.provider, meta);
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},
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_addItem: function(display) {
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this._content.add_actor(display.actor);
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},
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getFirstResult: function() {
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if (this._content.get_n_children() > 0)
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return this._content.get_child_at_index(0)._delegate;
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else
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return null;
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}
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});
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Signals.addSignalMethods(ListSearchResults.prototype);
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const GridSearchResults = new Lang.Class({
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Name: 'GridSearchResults',
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Extends: SearchResultsBase,
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_init: function(provider, parentContainer) {
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this.parent(provider);
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// We need to use the parent container to know how much results we can show.
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// None of the actors in this class can be used for that, since the main actor
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// goes hidden when no results are displayed, and then it lost its allocation.
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// Then on the next use of _getMaxDisplayedResults allocation is 0, en therefore
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// it doesn't show any result although we have some.
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this._parentContainer = parentContainer;
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this._grid = new IconGrid.IconGrid({ rowLimit: MAX_GRID_SEARCH_RESULTS_ROWS,
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xAlign: St.Align.START });
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this._bin = new St.Bin({ x_align: St.Align.MIDDLE });
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this._bin.set_child(this._grid.actor);
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this._resultDisplayBin.set_child(this._bin);
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},
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_getMaxDisplayedResults: function() {
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let parentThemeNode = this._parentContainer.get_theme_node();
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let availableWidth = parentThemeNode.adjust_for_width(this._parentContainer.width);
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return this._grid.columnsForWidth(availableWidth) * this._grid.getRowLimit();
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},
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_renderResults: function(metas) {
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for (let i = 0; i < metas.length; i++) {
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let display = new GridSearchResult(this.provider, metas[i]);
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display.connect('activate', Lang.bind(this, this._activateResult));
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display.actor.connect('key-focus-in', Lang.bind(this, this._keyFocusIn));
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this._grid.addItem(display);
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}
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},
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_clearResultDisplay: function () {
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this._grid.removeAll();
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},
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_createResultDisplay: function(meta) {
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return new GridSearchResult(this.provider, meta);
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},
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_addItem: function(display) {
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this._grid.addItem(display);
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},
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getFirstResult: function() {
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if (this._grid.visibleItemsCount() > 0)
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return this._grid.getItemAtIndex(0)._delegate;
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else
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return null;
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}
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});
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Signals.addSignalMethods(GridSearchResults.prototype);
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const SearchResults = new Lang.Class({
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Name: 'SearchResults',
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_init: function() {
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this.actor = new St.BoxLayout({ name: 'searchResults',
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vertical: true });
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this._content = new St.BoxLayout({ name: 'searchResultsContent',
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vertical: true });
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this._contentBin = new MaxWidthBin({ name: 'searchResultsBin',
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x_fill: true,
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y_fill: true,
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child: this._content });
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let scrollChild = new St.BoxLayout();
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scrollChild.add(this._contentBin, { expand: true });
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this._scrollView = new St.ScrollView({ x_fill: true,
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y_fill: false,
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overlay_scrollbars: true,
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style_class: 'search-display vfade' });
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this._scrollView.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
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this._scrollView.add_actor(scrollChild);
|
|
let action = new Clutter.PanAction({ interpolate: true });
|
|
action.connect('pan', Lang.bind(this, this._onPan));
|
|
this._scrollView.add_action(action);
|
|
|
|
this.actor.add(this._scrollView, { x_fill: true,
|
|
y_fill: true,
|
|
expand: true,
|
|
x_align: St.Align.START,
|
|
y_align: St.Align.START });
|
|
|
|
this._statusText = new St.Label({ style_class: 'search-statustext' });
|
|
this._statusBin = new St.Bin({ x_align: St.Align.MIDDLE,
|
|
y_align: St.Align.MIDDLE });
|
|
this._content.add(this._statusBin, { expand: true });
|
|
this._statusBin.add_actor(this._statusText);
|
|
|
|
this._highlightDefault = false;
|
|
this._defaultResult = null;
|
|
|
|
this._searchSystem = new SearchSystem();
|
|
this._searchSystem.connect('search-updated', Lang.bind(this, this._updateResults));
|
|
this._searchSystem.connect('providers-changed', Lang.bind(this, this._updateProviderDisplays));
|
|
this._updateProviderDisplays();
|
|
},
|
|
|
|
_onPan: function(action) {
|
|
let [dist, dx, dy] = action.get_motion_delta(0);
|
|
let adjustment = this._scrollView.vscroll.adjustment;
|
|
adjustment.value -= (dy / this.actor.height) * adjustment.page_size;
|
|
return false;
|
|
},
|
|
|
|
_keyFocusIn: function(provider, actor) {
|
|
Util.ensureActorVisibleInScrollView(this._scrollView, actor);
|
|
},
|
|
|
|
_ensureProviderDisplay: function(provider) {
|
|
if (provider.display)
|
|
return;
|
|
|
|
let providerDisplay;
|
|
if (provider.appInfo)
|
|
providerDisplay = new ListSearchResults(provider);
|
|
else
|
|
providerDisplay = new GridSearchResults(provider, this._content);
|
|
|
|
providerDisplay.connect('key-focus-in', Lang.bind(this, this._keyFocusIn));
|
|
this._content.add(providerDisplay.actor);
|
|
provider.display = providerDisplay;
|
|
},
|
|
|
|
_updateProviderDisplays: function() {
|
|
this._searchSystem.getProviders().forEach(Lang.bind(this, this._ensureProviderDisplay));
|
|
},
|
|
|
|
_clearDisplay: function() {
|
|
this._searchSystem.getProviders().forEach(function(provider) {
|
|
provider.display.clear();
|
|
});
|
|
},
|
|
|
|
reset: function() {
|
|
this._searchSystem.reset();
|
|
this._statusBin.hide();
|
|
this._clearDisplay();
|
|
this._defaultResult = null;
|
|
},
|
|
|
|
startingSearch: function() {
|
|
this.reset();
|
|
this._statusText.set_text(_("Searching…"));
|
|
this._statusBin.show();
|
|
},
|
|
|
|
setTerms: function(terms) {
|
|
this._searchSystem.setTerms(terms);
|
|
},
|
|
|
|
_maybeSetInitialSelection: function() {
|
|
let newDefaultResult = null;
|
|
|
|
let providers = this._searchSystem.getProviders();
|
|
for (let i = 0; i < providers.length; i++) {
|
|
let provider = providers[i];
|
|
let display = provider.display;
|
|
|
|
if (!display.actor.visible)
|
|
continue;
|
|
|
|
let firstResult = display.getFirstResult();
|
|
if (firstResult) {
|
|
newDefaultResult = firstResult;
|
|
break; // select this one!
|
|
}
|
|
}
|
|
|
|
if (newDefaultResult != this._defaultResult) {
|
|
if (this._defaultResult)
|
|
this._defaultResult.setSelected(false);
|
|
if (newDefaultResult) {
|
|
newDefaultResult.setSelected(this._highlightDefault);
|
|
if (this._highlightDefault)
|
|
Util.ensureActorVisibleInScrollView(this._scrollView, newDefaultResult.actor);
|
|
}
|
|
|
|
this._defaultResult = newDefaultResult;
|
|
}
|
|
},
|
|
|
|
_updateStatusText: function () {
|
|
let haveResults = this._searchSystem.getProviders().some(function(provider) {
|
|
let display = provider.display;
|
|
return (display.getFirstResult() != null);
|
|
});
|
|
|
|
if (!haveResults) {
|
|
this._statusText.set_text(_("No results."));
|
|
this._statusBin.show();
|
|
} else {
|
|
this._statusBin.hide();
|
|
}
|
|
},
|
|
|
|
_updateResults: function(searchSystem, provider, results) {
|
|
let terms = searchSystem.getTerms();
|
|
let display = provider.display;
|
|
|
|
display.updateSearch(results, terms, Lang.bind(this, function() {
|
|
this._maybeSetInitialSelection();
|
|
this._updateStatusText();
|
|
}));
|
|
},
|
|
|
|
activateDefault: function() {
|
|
if (this._defaultResult)
|
|
this._defaultResult.activate();
|
|
},
|
|
|
|
highlightDefault: function(highlight) {
|
|
this._highlightDefault = highlight;
|
|
if (this._defaultResult) {
|
|
this._defaultResult.setSelected(highlight);
|
|
if (highlight)
|
|
Util.ensureActorVisibleInScrollView(this._scrollView, this._defaultResult.actor);
|
|
}
|
|
},
|
|
|
|
navigateFocus: function(direction) {
|
|
let rtl = this.actor.get_text_direction() == Clutter.TextDirection.RTL;
|
|
if (direction == Gtk.DirectionType.TAB_BACKWARD ||
|
|
direction == (rtl ? Gtk.DirectionType.RIGHT
|
|
: Gtk.DirectionType.LEFT) ||
|
|
direction == Gtk.DirectionType.UP) {
|
|
this.actor.navigate_focus(null, direction, false);
|
|
return;
|
|
}
|
|
|
|
let from = this._defaultResult ? this._defaultResult.actor : null;
|
|
this.actor.navigate_focus(from, direction, false);
|
|
}
|
|
});
|
|
|
|
const ProviderIcon = new Lang.Class({
|
|
Name: 'ProviderIcon',
|
|
Extends: St.Button,
|
|
|
|
PROVIDER_ICON_SIZE: 48,
|
|
|
|
_init: function(provider) {
|
|
this.provider = provider;
|
|
this.parent({ style_class: 'search-provider-icon',
|
|
reactive: true,
|
|
can_focus: true,
|
|
accessible_name: provider.appInfo.get_name(),
|
|
track_hover: true });
|
|
|
|
this._content = new St.Widget({ layout_manager: new Clutter.BinLayout() });
|
|
this.set_child(this._content);
|
|
|
|
let rtl = (this.get_text_direction() == Clutter.TextDirection.RTL);
|
|
|
|
this.moreIcon = new St.Widget({ style_class: 'search-provider-icon-more',
|
|
visible: false,
|
|
x_align: rtl ? Clutter.ActorAlign.START : Clutter.ActorAlign.END,
|
|
y_align: Clutter.ActorAlign.END,
|
|
x_expand: true,
|
|
y_expand: true });
|
|
|
|
let icon = new St.Icon({ icon_size: this.PROVIDER_ICON_SIZE,
|
|
gicon: provider.appInfo.get_icon() });
|
|
this._content.add_actor(icon);
|
|
this._content.add_actor(this.moreIcon);
|
|
}
|
|
});
|