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Add support for asynchronous search providers

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Some search providers may want to change their results, or may not
want to block on an external service to get their results (DBus, etc.)
Set up an infrastructure to allow search providers to add their search
results at a later time.

Based on a patch by Jasper St. Pierre and Seif Lotfy.

https://bugzilla.gnome.org/show_bug.cgi?id=655220
This commit is contained in:
Philippe Normand
2011-07-24 12:29:36 +02:00
committed by Jasper St. Pierre
parent 8f0c980d3c
commit 3418e6e85e
3 changed files with 93 additions and 20 deletions
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45
js/ui/searchDisplay.js
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@ -189,6 +189,8 @@ function SearchResults(searchSystem, openSearchSystem) {
SearchResults.prototype = {
_init: function(searchSystem, openSearchSystem) {
this._searchSystem = searchSystem;
this._searchSystem.connect('search-updated', Lang.bind(this, this._updateCurrentResults));
this._searchSystem.connect('search-completed', Lang.bind(this, this._updateResults));
this._openSearchSystem = openSearchSystem;
this.actor = new St.BoxLayout({ name: 'searchResults',
@ -223,9 +225,11 @@ SearchResults.prototype = {
this._selectedProvider = -1;
this._providers = this._searchSystem.getProviders();
this._providerMeta = [];
for (let i = 0; i < this._providers.length; i++)
this._providerMetaResults = {};
for (let i = 0; i < this._providers.length; i++) {
this.createProviderMeta(this._providers[i]);
this._providerMetaResults[this.providers[i].title] = [];
}
this._searchProvidersBox = new St.BoxLayout({ style_class: 'search-providers-box' });
this.actor.add(this._searchProvidersBox);
@ -305,6 +309,12 @@ SearchResults.prototype = {
}
},
_clearDisplayForProvider: function(index) {
let meta = this._providerMeta[index];
meta.resultDisplay.clear();
meta.actor.hide();
},
reset: function() {
this._searchSystem.reset();
this._statusText.hide();
@ -319,15 +329,24 @@ SearchResults.prototype = {
this._statusText.show();
},
doSearch: function (searchString) {
this._searchSystem.updateSearch(searchString);
},
_metaForProvider: function(provider) {
return this._providerMeta[this._providers.indexOf(provider)];
},
updateSearch: function (searchString) {
let results = this._searchSystem.updateSearch(searchString);
this._clearDisplay();
_updateCurrentResults: function(searchSystem, provider, results) {
let terms = searchSystem.getTerms();
let meta = this._metaForProvider(provider);
meta.resultDisplay.clear();
meta.actor.show();
meta.resultDisplay.renderResults(results, terms);
return true;
},
_updateResults: function(searchSystem, results) {
if (results.length == 0) {
this._statusText.set_text(_("No matching results."));
this._statusText.show();
@ -337,7 +356,7 @@ SearchResults.prototype = {
this._statusText.hide();
}
let terms = this._searchSystem.getTerms();
let terms = searchSystem.getTerms();
this._openSearchSystem.setSearchTerms(terms);
// To avoid CSS transitions causing flickering
@ -349,9 +368,15 @@ SearchResults.prototype = {
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);
if (providerResults.length == 0) {
this._clearDisplayForProvider(i);
} else {
this._providerMetaResults[provider.title] = providerResults;
this._clearDisplayForProvider(i);
let meta = this._metaForProvider(provider);
meta.actor.show();
meta.resultDisplay.renderResults(providerResults, terms);
}
}
if (this._selectedOpenSearchButton == -1)