gnome-shell/js/ui/searchDisplay.js
Adel Gadllah 00ba937171 StScrollView: Implement real fade effect
Implement an edge fade effect (top/bottom) using a
ClutterOffscreenEffect subclass, replacing the former
shadow hack.

https://bugzilla.gnome.org/show_bug.cgi?id=639460
2011-01-20 20:53:20 +01:00

414 lines
14 KiB
JavaScript

/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Clutter = imports.gi.Clutter;
const Lang = imports.lang;
const Gettext = imports.gettext.domain('gnome-shell');
const _ = Gettext.gettext;
const Gtk = imports.gi.Gtk;
const St = imports.gi.St;
const DND = imports.ui.dnd;
const IconGrid = imports.ui.iconGrid;
const Main = imports.ui.main;
const Search = imports.ui.search;
const MAX_SEARCH_RESULTS_ROWS = 2;
function SearchResult(provider, metaInfo, terms) {
this._init(provider, metaInfo, terms);
}
SearchResult.prototype = {
_init: function(provider, metaInfo, terms) {
this.provider = provider;
this.metaInfo = metaInfo;
this.actor = new St.Clickable({ style_class: 'search-result',
reactive: true,
x_align: St.Align.START,
y_fill: true });
this.actor._delegate = this;
let content = provider.createResultActor(metaInfo, terms);
if (content == null) {
content = new St.Bin({ style_class: 'search-result-content',
reactive: true,
track_hover: true });
let icon = new IconGrid.BaseIcon(this.metaInfo['name'],
{ createIcon: Lang.bind(this, function(size) {
return this.metaInfo['icon'];
})});
content.set_child(icon.actor);
}
this._content = content;
this.actor.set_child(content);
this.actor.connect('clicked', Lang.bind(this, this._onResultClicked));
let draggable = DND.makeDraggable(this.actor);
draggable.connect('drag-begin',
Lang.bind(this, function() {
Main.overview.beginItemDrag(this);
}));
draggable.connect('drag-end',
Lang.bind(this, function() {
Main.overview.endItemDrag(this);
}));
},
setSelected: function(selected) {
if (selected)
this._content.add_style_pseudo_class('selected');
else
this._content.remove_style_pseudo_class('selected');
},
activate: function() {
this.provider.activateResult(this.metaInfo.id);
Main.overview.toggle();
},
_onResultClicked: function(actor, event) {
this.activate();
},
getDragActorSource: function() {
return this.metaInfo['icon'];
},
getDragActor: function(stageX, stageY) {
return new Clutter.Clone({ source: this.metaInfo['icon'] });
},
shellWorkspaceLaunch: function() {
if (this.provider.dragActivateResult)
this.provider.dragActivateResult(this.metaInfo.id);
else
this.provider.activateResult(this.metaInfo.id);
}
};
function GridSearchResults(provider) {
this._init(provider);
}
GridSearchResults.prototype = {
__proto__: Search.SearchResultDisplay.prototype,
_init: function(provider) {
Search.SearchResultDisplay.prototype._init.call(this, provider);
this._grid = new IconGrid.IconGrid({ rowLimit: MAX_SEARCH_RESULTS_ROWS,
xAlign: St.Align.START });
this.actor = new St.Bin({ x_align: St.Align.START });
this.actor.set_child(this._grid.actor);
this.selectionIndex = -1;
},
getVisibleResultCount: function() {
return this._grid.visibleItemsCount();
},
renderResults: function(results, terms) {
for (let i = 0; i < results.length; i++) {
let result = results[i];
let meta = this.provider.getResultMeta(result);
let display = new SearchResult(this.provider, meta, terms);
this._grid.addItem(display.actor);
}
},
clear: function () {
this._grid.removeAll();
this.selectionIndex = -1;
},
selectIndex: function (index) {
let nVisible = this.getVisibleResultCount();
if (this.selectionIndex >= 0) {
let prevActor = this._grid.getItemAtIndex(this.selectionIndex);
prevActor._delegate.setSelected(false);
}
this.selectionIndex = -1;
if (index >= nVisible)
return false;
else if (index < 0)
return false;
let targetActor = this._grid.getItemAtIndex(index);
targetActor._delegate.setSelected(true);
this.selectionIndex = index;
return true;
},
activateSelected: function() {
if (this.selectionIndex < 0)
return;
let targetActor = this._grid.getItemAtIndex(this.selectionIndex);
targetActor._delegate.activate();
}
};
function SearchResults(searchSystem, openSearchSystem) {
this._init(searchSystem, openSearchSystem);
}
SearchResults.prototype = {
_init: function(searchSystem, openSearchSystem) {
this._searchSystem = searchSystem;
this._openSearchSystem = openSearchSystem;
this.actor = new St.BoxLayout({ name: 'searchResults',
vertical: true });
this._content = new St.BoxLayout({ name: 'searchResultsContent',
vertical: true });
let scrollView = new St.ScrollView({ x_fill: true,
y_fill: false,
vfade: true });
scrollView.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
scrollView.add_actor(this._content);
this.actor.add(scrollView, { x_fill: true,
y_fill: false,
expand: true,
x_align: St.Align.START,
y_align: St.Align.START });
this._statusText = new St.Label({ style_class: 'search-statustext' });
this._content.add(this._statusText);
this._selectedProvider = -1;
this._providers = this._searchSystem.getProviders();
this._providerMeta = [];
for (let i = 0; i < this._providers.length; i++)
this.createProviderMeta(this._providers[i]);
this._searchProvidersBox = new St.BoxLayout({ style_class: 'search-providers-box' });
this.actor.add(this._searchProvidersBox);
this._openSearchProviders = [];
this._openSearchSystem.connect('changed', Lang.bind(this, this._updateOpenSearchProviderButtons));
this._updateOpenSearchProviderButtons();
},
_updateOpenSearchProviderButtons: function() {
this._selectedOpenSearchButton = -1;
for (let i = 0; i < this._openSearchProviders.length; i++)
this._openSearchProviders[i].actor.destroy();
this._openSearchProviders = this._openSearchSystem.getProviders();
for (let i = 0; i < this._openSearchProviders.length; i++)
this._createOpenSearchProviderButton(this._openSearchProviders[i]);
},
_updateOpenSearchButtonState: function() {
for (let i = 0; i < this._openSearchProviders.length; i++) {
if (i == this._selectedOpenSearchButton)
this._openSearchProviders[i].actor.add_style_pseudo_class('selected');
else
this._openSearchProviders[i].actor.remove_style_pseudo_class('selected');
}
},
_createOpenSearchProviderButton: function(provider) {
let clickable = new St.Clickable({ style_class: 'dash-search-button',
reactive: true,
x_fill: true,
y_align: St.Align.MIDDLE });
let bin = new St.Bin({ x_fill: false,
x_align:St.Align.MIDDLE });
clickable.connect('clicked', Lang.bind(this, function() {
this._openSearchSystem.activateResult(provider.id);
}));
let title = new St.Label({ text: provider.name,
style_class: 'dash-search-button-label' });
bin.set_child(title);
clickable.set_child(bin);
provider.actor = clickable;
this._searchProvidersBox.add(clickable);
},
createProviderMeta: function(provider) {
let providerBox = new St.BoxLayout({ style_class: 'search-section',
vertical: true });
let titleButton = new St.Button({ style_class: 'search-section-header',
reactive: true,
x_fill: true,
y_fill: true });
titleButton.connect('clicked', Lang.bind(this, function () { this._onHeaderClicked(provider); }));
providerBox.add(titleButton);
let titleBox = new St.BoxLayout();
titleButton.set_child(titleBox);
let title = new St.Label({ text: provider.title });
let count = new St.Label();
titleBox.add(title, { expand: true });
titleBox.add(count);
let resultDisplayBin = new St.Bin({ style_class: 'search-section-results',
x_fill: true,
y_fill: true });
providerBox.add(resultDisplayBin, { expand: true });
let resultDisplay = provider.createResultContainerActor();
if (resultDisplay == null) {
resultDisplay = new GridSearchResults(provider);
}
resultDisplayBin.set_child(resultDisplay.actor);
this._providerMeta.push({ actor: providerBox,
resultDisplay: resultDisplay,
count: count });
this._content.add(providerBox);
},
_clearDisplay: function() {
this._selectedProvider = -1;
this._visibleResultsCount = 0;
for (let i = 0; i < this._providerMeta.length; i++) {
let meta = this._providerMeta[i];
meta.resultDisplay.clear();
meta.actor.hide();
}
},
reset: function() {
this._searchSystem.reset();
this._statusText.hide();
this._clearDisplay();
this._selectedOpenSearchButton = -1;
this._updateOpenSearchButtonState();
},
startingSearch: function() {
this.reset();
this._statusText.set_text(_("Searching..."));
this._statusText.show();
},
_metaForProvider: function(provider) {
return this._providerMeta[this._providers.indexOf(provider)];
},
updateSearch: function (searchString) {
let results = this._searchSystem.updateSearch(searchString);
this._clearDisplay();
if (results.length == 0) {
this._statusText.set_text(_("No matching results."));
this._statusText.show();
} else {
this._statusText.hide();
}
let terms = this._searchSystem.getTerms();
this._openSearchSystem.setSearchTerms(terms);
for (let i = 0; i < results.length; i++) {
let [provider, providerResults] = results[i];
let meta = this._metaForProvider(provider);
meta.actor.show();
meta.resultDisplay.renderResults(providerResults, terms);
meta.count.set_text('' + providerResults.length);
}
if (this._selectedOpenSearchButton == -1)
this.selectDown(false);
return true;
},
_onHeaderClicked: function(provider) {
provider.expandSearch(this._searchSystem.getTerms());
},
_modifyActorSelection: function(resultDisplay, up) {
let success;
let index = resultDisplay.getSelectionIndex();
if (up && index == -1)
index = resultDisplay.getVisibleResultCount() - 1;
else if (up)
index = index - 1;
else
index = index + 1;
return resultDisplay.selectIndex(index);
},
selectUp: function(recursing) {
if (this._selectedOpenSearchButton == -1) {
for (let i = this._selectedProvider; i >= 0; i--) {
let meta = this._providerMeta[i];
if (!meta.actor.visible)
continue;
let success = this._modifyActorSelection(meta.resultDisplay, true);
if (success) {
this._selectedProvider = i;
return;
}
}
}
if (this._selectedOpenSearchButton == -1)
this._selectedOpenSearchButton = this._openSearchProviders.length;
this._selectedOpenSearchButton--;
this._updateOpenSearchButtonState();
if (this._selectedOpenSearchButton >= 0)
return;
if (this._providerMeta.length > 0 && !recursing) {
this._selectedProvider = this._providerMeta.length - 1;
this.selectUp(true);
}
},
selectDown: function(recursing) {
let current = this._selectedProvider;
if (this._selectedOpenSearchButton == -1) {
if (current == -1)
current = 0;
for (let i = current; i < this._providerMeta.length; i++) {
let meta = this._providerMeta[i];
if (!meta.actor.visible)
continue;
let success = this._modifyActorSelection(meta.resultDisplay, false);
if (success) {
this._selectedProvider = i;
return;
}
}
}
this._selectedOpenSearchButton++;
if (this._selectedOpenSearchButton < this._openSearchProviders.length) {
this._updateOpenSearchButtonState();
return;
}
this._selectedOpenSearchButton = -1;
this._updateOpenSearchButtonState();
if (this._providerMeta.length > 0 && !recursing) {
this._selectedProvider = 0;
this.selectDown(true);
}
},
activateSelected: function() {
if (this._selectedOpenSearchButton != -1) {
let provider = this._openSearchProviders[this._selectedOpenSearchButton];
this._openSearchSystem.activateResult(provider.id);
Main.overview.hide();
return;
}
let current = this._selectedProvider;
if (current < 0)
return;
let meta = this._providerMeta[current];
let resultDisplay = meta.resultDisplay;
resultDisplay.activateSelected();
Main.overview.hide();
}
};