396 lines
14 KiB
JavaScript
396 lines
14 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 Gtk = imports.gi.Gtk;
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const Meta = imports.gi.Meta;
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const St = imports.gi.St;
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const Atk = imports.gi.Atk;
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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 Search = imports.ui.search;
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const MAX_SEARCH_RESULTS_ROWS = 1;
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const SearchResult = new Lang.Class({
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Name: 'SearchResult',
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_init: function(provider, metaInfo, terms) {
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this.provider = provider;
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this.metaInfo = metaInfo;
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this.actor = new St.Button({ style_class: 'search-result',
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reactive: 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._dragActorSource = null;
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let content = provider.createResultActor(metaInfo, terms);
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if (content == null) {
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content = new St.Bin({ style_class: 'search-result-content',
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reactive: true,
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can_focus: true,
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track_hover: true,
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accessible_role: Atk.Role.PUSH_BUTTON });
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let icon = new IconGrid.BaseIcon(this.metaInfo['name'],
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{ createIcon: this.metaInfo['createIcon'] });
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content.set_child(icon.actor);
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this._dragActorSource = icon.icon;
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content.label_actor = icon.label;
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} else {
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if (content._delegate && content._delegate.getDragActorSource)
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this._dragActorSource = content._delegate.getDragActorSource();
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}
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this._content = content;
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this.actor.set_child(content);
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this.actor.connect('clicked', Lang.bind(this, this._onResultClicked));
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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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},
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setSelected: function(selected) {
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if (selected)
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this._content.add_style_pseudo_class('selected');
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else
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this._content.remove_style_pseudo_class('selected');
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},
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activate: function() {
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this.provider.activateResult(this.metaInfo.id);
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Main.overview.toggle();
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},
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_onResultClicked: function(actor) {
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this.activate();
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},
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getDragActorSource: function() {
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if (this._dragActorSource)
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return this._dragActorSource;
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// not exactly right, but alignment problems are hard to notice
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return this._content;
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},
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getDragActor: function(stageX, stageY) {
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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, params);
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}
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});
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const GridSearchResults = new Lang.Class({
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Name: 'GridSearchResults',
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Extends: Search.SearchResultDisplay,
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_init: function(provider, grid) {
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this.parent(provider);
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this._grid = grid || new IconGrid.IconGrid({ rowLimit: MAX_SEARCH_RESULTS_ROWS,
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xAlign: St.Align.START });
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this.actor = new St.Bin({ x_align: St.Align.START });
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this.actor.set_child(this._grid.actor);
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this._width = 0;
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this.actor.connect('notify::width', Lang.bind(this, function() {
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this._width = this.actor.width;
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Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this, function() {
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let results = this.getResultsForDisplay();
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if (results.length == 0)
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return;
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provider.getResultMetas(results, Lang.bind(this, this.renderResults));
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}));
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}));
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this._notDisplayedResult = [];
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this._terms = [];
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this._pendingClear = false;
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},
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getResultsForDisplay: function() {
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let alreadyVisible = this._pendingClear ? 0 : this._grid.visibleItemsCount();
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let canDisplay = this._grid.childrenInRow(this._width) * this._grid.getRowLimit()
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- alreadyVisible;
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let numResults = Math.min(this._notDisplayedResult.length, canDisplay);
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return this._notDisplayedResult.splice(0, numResults);
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},
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getVisibleResultCount: function() {
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return this._grid.visibleItemsCount();
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},
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setResults: function(results, terms) {
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// copy the lists
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this._notDisplayedResult = results.slice(0);
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this._terms = terms.slice(0);
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this._pendingClear = true;
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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 SearchResult(this.provider, metas[i], this._terms);
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this._grid.addItem(display.actor);
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}
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},
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clear: function () {
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this._grid.removeAll();
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this._pendingClear = false;
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},
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getFirstResult: function() {
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if (this.getVisibleResultCount() > 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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const SearchResults = new Lang.Class({
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Name: 'SearchResults',
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_init: function(searchSystem) {
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this._searchSystem = searchSystem;
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this._searchSystem.connect('search-updated', Lang.bind(this, this._updateResults));
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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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let scrollView = new St.ScrollView({ x_fill: true,
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y_fill: false,
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style_class: 'vfade' });
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scrollView.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
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scrollView.add_actor(this._content);
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this.actor.add(scrollView, { x_fill: true,
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y_fill: true,
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expand: true,
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x_align: St.Align.START,
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y_align: St.Align.START });
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this.actor.connect('notify::mapped', Lang.bind(this,
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function() {
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if (!this.actor.mapped)
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return;
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let adjustment = scrollView.vscroll.adjustment;
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let direction = Overview.SwipeScrollDirection.VERTICAL;
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Main.overview.setScrollAdjustment(adjustment, direction);
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}));
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this._statusText = new St.Label({ style_class: 'search-statustext' });
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this._statusBin = new St.Bin({ x_align: St.Align.MIDDLE,
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y_align: St.Align.MIDDLE });
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this._content.add(this._statusBin, { expand: true });
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this._statusBin.add_actor(this._statusText);
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this._providers = this._searchSystem.getProviders();
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this._providerMeta = [];
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for (let i = 0; i < this._providers.length; i++) {
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this.createProviderMeta(this._providers[i]);
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}
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this._highlightDefault = false;
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this._defaultResult = null;
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},
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createProviderMeta: function(provider) {
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let providerBox = new St.BoxLayout({ style_class: 'search-section',
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vertical: true });
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let title = new St.Label({ style_class: 'search-section-header',
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text: provider.title });
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providerBox.add(title, { x_fill: false, x_align: St.Align.START });
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let resultDisplayBin = new St.Bin({ style_class: 'search-section-results',
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x_fill: true,
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y_fill: true });
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providerBox.add(resultDisplayBin, { expand: true });
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let resultDisplay = new GridSearchResults(provider);
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resultDisplayBin.set_child(resultDisplay.actor);
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this._providerMeta.push({ provider: provider,
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actor: providerBox,
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resultDisplay: resultDisplay });
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this._content.add(providerBox);
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},
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destroyProviderMeta: function(provider) {
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for (let i=0; i < this._providerMeta.length; i++) {
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let meta = this._providerMeta[i];
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if (meta.provider == provider) {
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meta.actor.destroy();
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this._providerMeta.splice(i, 1);
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break;
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}
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}
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},
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_clearDisplay: function() {
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for (let i = 0; i < this._providerMeta.length; i++) {
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let meta = this._providerMeta[i];
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meta.resultDisplay.clear();
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meta.actor.hide();
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}
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},
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_clearDisplayForProvider: function(provider) {
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let meta = this._metaForProvider(provider);
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meta.resultDisplay.clear();
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meta.actor.hide();
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},
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reset: function() {
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this._searchSystem.reset();
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this._statusBin.hide();
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this._clearDisplay();
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},
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startingSearch: function() {
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this.reset();
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this._statusText.set_text(_("Searching..."));
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this._statusBin.show();
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},
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doSearch: function (searchString) {
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this._searchSystem.updateSearch(searchString);
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},
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_metaForProvider: function(provider) {
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return this._providerMeta[this._providers.indexOf(provider)];
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},
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_maybeSetInitialSelection: function() {
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let newDefaultResult = null;
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for (let i = 0; i < this._providerMeta.length; i++) {
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let meta = this._providerMeta[i];
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if (!meta.actor.visible)
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continue;
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let firstResult = meta.resultDisplay.getFirstResult();
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if (firstResult) {
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newDefaultResult = firstResult;
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break; // select this one!
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}
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}
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if (newDefaultResult != this._defaultResult) {
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if (this._defaultResult)
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this._defaultResult.setSelected(false);
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if (newDefaultResult)
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newDefaultResult.setSelected(this._highlightDefault);
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this._defaultResult = newDefaultResult;
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}
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},
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_updateStatusText: function () {
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let haveResults = false;
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for (let i = 0; i < this._providerMeta.length; ++i)
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if (this._providerMeta[i].resultDisplay.getFirstResult()) {
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haveResults = true;
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break;
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}
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if (!haveResults) {
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this._statusText.set_text(_("No results."));
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this._statusBin.show();
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} else {
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this._statusBin.hide();
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}
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},
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_updateResults: function(searchSystem, results) {
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let terms = searchSystem.getTerms();
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let [provider, providerResults] = results;
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let meta = this._metaForProvider(provider);
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if (providerResults.length == 0) {
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this._clearDisplayForProvider(provider);
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meta.resultDisplay.setResults([], []);
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this._maybeSetInitialSelection();
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this._updateStatusText();
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} else {
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meta.resultDisplay.setResults(providerResults, terms);
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let results = meta.resultDisplay.getResultsForDisplay();
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provider.getResultMetas(results, Lang.bind(this, function(metas) {
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this._clearDisplayForProvider(provider);
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meta.actor.show();
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// Hiding drops the key focus if we have it
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let focus = global.stage.get_key_focus();
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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._content.hide();
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meta.resultDisplay.renderResults(metas);
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this._maybeSetInitialSelection();
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this._updateStatusText();
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this._content.show();
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if (this._content.contains(focus))
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global.stage.set_key_focus(focus);
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}));
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}
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},
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activateDefault: function() {
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if (this._defaultResult)
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this._defaultResult.activate();
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},
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highlightDefault: function(highlight) {
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this._highlightDefault = highlight;
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if (this._defaultResult)
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this._defaultResult.setSelected(highlight);
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},
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navigateFocus: function(direction) {
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let rtl = this.actor.get_text_direction() == Clutter.TextDirection.RTL;
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if (direction == Gtk.DirectionType.TAB_BACKWARD ||
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direction == (rtl ? Gtk.DirectionType.RIGHT
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: Gtk.DirectionType.LEFT) ||
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direction == Gtk.DirectionType.UP) {
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this.actor.navigate_focus(null, direction, false);
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return;
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}
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let from = this._defaultResult ? this._defaultResult.actor : null;
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this.actor.navigate_focus(from, direction, false);
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if (this._defaultResult) {
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// The default result appears focused, so navigate directly to the
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// next result.
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this.actor.navigate_focus(global.stage.key_focus, direction, false);
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}
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}
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});
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