gnome-shell/js/misc/docInfo.js

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/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const St = imports.gi.St;
const Shell = imports.gi.Shell;
const Lang = imports.lang;
const Signals = imports.signals;
const Search = imports.ui.search;
const THUMBNAIL_ICON_MARGIN = 2;
function DocInfo(recentInfo) {
this._init(recentInfo);
}
DocInfo.prototype = {
_init : function(recentInfo) {
this.recentInfo = recentInfo;
// We actually used get_modified() instead of get_visited()
// here, as GtkRecentInfo doesn't updated get_visited()
// correctly. See http://bugzilla.gnome.org/show_bug.cgi?id=567094
this.timestamp = recentInfo.get_modified();
this.name = recentInfo.get_display_name();
this._lowerName = this.name.toLowerCase();
this.uri = recentInfo.get_uri();
this.mimeType = recentInfo.get_mime_type();
},
createIcon : function(size) {
return St.TextureCache.get_default().load_recent_thumbnail(size, this.recentInfo);
},
launch : function(workspaceIndex) {
Shell.DocSystem.get_default().open(this.recentInfo, workspaceIndex);
},
matchTerms: function(terms) {
let mtype = Search.MatchType.NONE;
for (let i = 0; i < terms.length; i++) {
let term = terms[i];
let idx = this._lowerName.indexOf(term);
if (idx == 0) {
mtype = Search.MatchType.PREFIX;
} else if (idx > 0) {
if (mtype == Search.MatchType.NONE)
mtype = Search.MatchType.SUBSTRING;
} else {
return Search.MatchType.NONE;
}
}
return mtype;
}
};
var docManagerInstance = null;
function getDocManager() {
if (docManagerInstance == null)
docManagerInstance = new DocManager();
return docManagerInstance;
}
/**
* DocManager wraps the DocSystem, primarily to expose DocInfo objects.
*/
function DocManager() {
this._init();
}
DocManager.prototype = {
_init: function() {
this._docSystem = Shell.DocSystem.get_default();
this._infosByTimestamp = [];
this._infosByUri = {};
this._docSystem.connect('changed', Lang.bind(this, this._reload));
this._reload();
},
_reload: function() {
let docs = this._docSystem.get_all();
this._infosByTimestamp = [];
this._infosByUri = {};
for (let i = 0; i < docs.length; i++) {
let recentInfo = docs[i];
let docInfo = new DocInfo(recentInfo);
this._infosByTimestamp.push(docInfo);
this._infosByUri[docInfo.uri] = docInfo;
}
this.emit('changed');
},
getTimestampOrderedInfos: function() {
return this._infosByTimestamp;
},
getInfosByUri: function() {
return this._infosByUri;
},
lookupByUri: function(uri) {
return this._infosByUri[uri];
},
queueExistenceCheck: function(count) {
return this._docSystem.queue_existence_check(count);
},
_searchDocs: function(items, terms) {
let multiplePrefixMatches = [];
let prefixMatches = [];
let multipleSubtringMatches = [];
let substringMatches = [];
for (let i = 0; i < items.length; i++) {
let item = items[i];
let mtype = item.matchTerms(terms);
if (mtype == Search.MatchType.MULTIPLE_PREFIX)
multiplePrefixMatches.push(item.uri);
else if (mtype == Search.MatchType.PREFIX)
prefixMatches.push(item.uri);
else if (mtype == Search.MatchType.MULTIPLE_SUBSTRING)
multipleSubtringMatches.push(item.uri);
else if (mtype == Search.MatchType.SUBSTRING)
substringMatches.push(item.uri);
}
return multiplePrefixMatches.concat(prefixMatches.concat(multipleSubtringMatches.concat(substringMatches)));
},
initialSearch: function(terms) {
return this._searchDocs(this._infosByTimestamp, terms);
},
subsearch: function(previousResults, terms) {
return this._searchDocs(previousResults.map(Lang.bind(this,
function(url) {
return this._infosByUri[url];
})), terms);
}
};
Signals.addSignalMethods(DocManager.prototype);