gnome-shell/js/ui/remoteSearch.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const St = imports.gi.St;
const FileUtils = imports.misc.fileUtils;
const Search = imports.ui.search;
const KEY_FILE_GROUP = 'Shell Search Provider';
const SearchProviderIface = <interface name="org.gnome.Shell.SearchProvider">
<method name="GetInitialResultSet">
<arg type="as" direction="in" />
<arg type="as" direction="out" />
</method>
<method name="GetSubsearchResultSet">
<arg type="as" direction="in" />
<arg type="as" direction="in" />
<arg type="as" direction="out" />
</method>
<method name="GetResultMetas">
<arg type="as" direction="in" />
<arg type="aa{sv}" direction="out" />
</method>
<method name="ActivateResult">
<arg type="s" direction="in" />
</method>
</interface>;
const SearchProvider2Iface = <interface name="org.gnome.Shell.SearchProvider2">
<method name="GetInitialResultSet">
<arg type="as" direction="in" />
<arg type="as" direction="out" />
</method>
<method name="GetSubsearchResultSet">
<arg type="as" direction="in" />
<arg type="as" direction="in" />
<arg type="as" direction="out" />
</method>
<method name="GetResultMetas">
<arg type="as" direction="in" />
<arg type="aa{sv}" direction="out" />
</method>
<method name="ActivateResult">
<arg type="s" direction="in" />
<arg type="as" direction="in" />
<arg type="u" direction="in" />
</method>
<method name="LaunchSearch">
<arg type="as" direction="in" />
<arg type="u" direction="in" />
</method>
</interface>;
var SearchProviderProxy = Gio.DBusProxy.makeProxyWrapper(SearchProviderIface);
var SearchProvider2Proxy = Gio.DBusProxy.makeProxyWrapper(SearchProvider2Iface);
function loadRemoteSearchProviders(addProviderCallback) {
let data = { loadedProviders: [],
objectPaths: {},
addProviderCallback: addProviderCallback };
FileUtils.collectFromDatadirsAsync('search-providers',
{ loadedCallback: remoteProvidersLoaded,
processFile: loadRemoteSearchProvider,
data: data
});
}
function loadRemoteSearchProvider(file, info, data) {
let keyfile = new GLib.KeyFile();
let path = file.get_path();
try {
keyfile.load_from_file(path, 0);
} catch(e) {
return;
}
if (!keyfile.has_group(KEY_FILE_GROUP))
return;
let remoteProvider;
try {
let group = KEY_FILE_GROUP;
let busName = keyfile.get_string(group, 'BusName');
let objectPath = keyfile.get_string(group, 'ObjectPath');
if (data.objectPaths[objectPath])
return;
let appInfo = null;
try {
let desktopId = keyfile.get_string(group, 'DesktopId');
appInfo = Gio.DesktopAppInfo.new(desktopId);
} catch (e) {
log('Ignoring search provider ' + path + ': missing DesktopId');
return;
}
let version = '1';
try {
version = keyfile.get_string(group, 'Version');
} catch (e) {
// ignore error
}
if (version >= 2)
remoteProvider = new RemoteSearchProvider2(appInfo, busName, objectPath);
else
remoteProvider = new RemoteSearchProvider(appInfo, busName, objectPath);
data.objectPaths[objectPath] = remoteProvider;
data.loadedProviders.push(remoteProvider);
} catch(e) {
log('Failed to add search provider %s: %s'.format(path, e.toString()));
}
}
function remoteProvidersLoaded(loadState) {
let searchSettings = new Gio.Settings({ schema: Search.SEARCH_PROVIDERS_SCHEMA });
let sortOrder = searchSettings.get_strv('sort-order');
let numSorted = sortOrder.length;
loadState.loadedProviders.sort(
function(providerA, providerB) {
let idxA, idxB;
let appIdA, appIdB;
appIdA = providerA.appInfo.get_id();
appIdB = providerB.appInfo.get_id();
idxA = sortOrder.indexOf(appIdA);
idxB = sortOrder.indexOf(appIdB);
// if no provider is found in the order, use alphabetical order
if ((idxA == -1) && (idxB == -1))
return GLib.utf8_collate(providerA.title, providerB.title);
if (numSorted > 1) {
// if providerA is the last, it goes after everything
if ((idxA + 1) == numSorted)
return 1;
// if providerB is the last, it goes after everything
else if ((idxB + 1) == numSorted)
return -1;
}
// if providerA isn't found, it's sorted after providerB
if (idxA == -1)
return 1;
// if providerB isn't found, it's sorted after providerA
if (idxB == -1)
return -1;
// finally, if both providers are found, return their order in the list
return (idxA - idxB);
});
loadState.loadedProviders.forEach(
function(provider) {
loadState.addProviderCallback(provider);
});
}
const RemoteSearchProvider = new Lang.Class({
Name: 'RemoteSearchProvider',
Extends: Search.SearchProvider,
_init: function(appInfo, dbusName, dbusPath, proxyType) {
if (!proxyType)
proxyType = SearchProviderProxy;
this.proxy = new proxyType(Gio.DBus.session,
dbusName, dbusPath, Lang.bind(this, this._onProxyConstructed));
this.parent(appInfo.get_name().toUpperCase(), appInfo, true);
this._cancellable = new Gio.Cancellable();
},
_onProxyConstructed: function(proxy) {
// Do nothing
},
createIcon: function(size, meta) {
if (meta['gicon']) {
return new St.Icon({ gicon: Gio.icon_new_for_string(meta['gicon']),
icon_size: size });
} else if (meta['icon-data']) {
let [width, height, rowStride, hasAlpha,
bitsPerSample, nChannels, data] = meta['icon-data'];
let textureCache = St.TextureCache.get_default();
return textureCache.load_from_raw(data, hasAlpha,
width, height, rowStride, size);
}
// Ugh, but we want to fall back to something ...
return new St.Icon({ icon_name: 'text-x-generic',
icon_size: size });
},
_getResultsFinished: function(results, error) {
if (error)
return;
this.searchSystem.pushResults(this, results[0]);
},
getInitialResultSet: function(terms) {
this._cancellable.cancel();
this._cancellable.reset();
try {
this.proxy.GetInitialResultSetRemote(terms,
Lang.bind(this, this._getResultsFinished),
this._cancellable);
} catch(e) {
log('Error calling GetInitialResultSet for provider %s: %s'.format( this.title, e.toString()));
this.searchSystem.pushResults(this, []);
}
},
getSubsearchResultSet: function(previousResults, newTerms) {
this._cancellable.cancel();
this._cancellable.reset();
try {
this.proxy.GetSubsearchResultSetRemote(previousResults, newTerms,
Lang.bind(this, this._getResultsFinished),
this._cancellable);
} catch(e) {
log('Error calling GetSubsearchResultSet for provider %s: %s'.format(this.title, e.toString()));
this.searchSystem.pushResults(this, []);
}
},
_getResultMetasFinished: function(results, error, callback) {
if (error) {
callback([]);
return;
}
let metas = results[0];
let resultMetas = [];
for (let i = 0; i < metas.length; i++) {
for (let prop in metas[i])
metas[i][prop] = metas[i][prop].deep_unpack();
resultMetas.push({ id: metas[i]['id'],
name: metas[i]['name'],
createIcon: Lang.bind(this,
this.createIcon, metas[i]) });
}
callback(resultMetas);
},
getResultMetas: function(ids, callback) {
this._cancellable.cancel();
this._cancellable.reset();
try {
this.proxy.GetResultMetasRemote(ids,
Lang.bind(this, this._getResultMetasFinished, callback),
this._cancellable);
} catch(e) {
log('Error calling GetResultMetas for provider %s: %s'.format(this.title, e.toString()));
callback([]);
}
},
activateResult: function(id) {
this.proxy.ActivateResultRemote(id);
},
launchSearch: function(terms) {
// the provider is not compatible with the new version of the interface, launch
// the app itself but warn so we can catch the error in logs
log('Search provider ' + this.appInfo.get_id() + ' does not implement LaunchSearch');
this.appInfo.launch([], global.create_app_launch_context());
}
});
const RemoteSearchProvider2 = new Lang.Class({
Name: 'RemoteSearchProvider2',
Extends: RemoteSearchProvider,
_init: function(appInfo, dbusName, dbusPath) {
this.parent(appInfo, dbusName, dbusPath, SearchProvider2Proxy);
this.canLaunchSearch = true;
},
activateResult: function(id, terms) {
this.proxy.ActivateResultRemote(id, terms, global.get_current_time());
},
launchSearch: function(terms) {
this.proxy.LaunchSearchRemote(terms, global.get_current_time());
}
});