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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
cr.define('downloads', function() {
/**
* @param {string} chromeSendName
* @return {function(string):void} A chrome.send() callback with curried name.
*/
function chromeSendWithId(chromeSendName) {
return function(id) { chrome.send(chromeSendName, [id]); };
}
/** @constructor */
function ActionService() {
/** @private {Array<string>} */
this.searchTerms_ = [];
}
/**
* @param {string} s
* @return {string} |s| without whitespace at the beginning or end.
*/
function trim(s) { return s.trim(); }
/**
* @param {string|undefined} value
* @return {boolean} Whether |value| is truthy.
*/
function truthy(value) { return !!value; }
/**
* @param {string} searchText Input typed by the user into a search box.
* @return {Array<string>} A list of terms extracted from |searchText|.
*/
ActionService.splitTerms = function(searchText) {
// Split quoted terms (e.g., 'The "lazy" dog' => ['The', 'lazy', 'dog']).
return searchText.split(/"([^"]*)"/).map(trim).filter(truthy);
};
ActionService.prototype = {
/** @param {string} id ID of the download to cancel. */
cancel: chromeSendWithId('cancel'),
/** Instructs the browser to clear all finished downloads. */
clearAll: function() {
if (loadTimeData.getBoolean('allowDeletingHistory')) {
chrome.send('clearAll');
this.search('');
}
},
/** @param {string} id ID of the dangerous download to discard. */
discardDangerous: chromeSendWithId('discardDangerous'),
/** @param {string} url URL of a file to download. */
download: function(url) {
var a = document.createElement('a');
a.href = url;
a.setAttribute('download', '');
a.click();
},
/** @param {string} id ID of the download that the user started dragging. */
drag: chromeSendWithId('drag'),
/** Loads more downloads with the current search terms. */
loadMore: function() {
chrome.send('getDownloads', this.searchTerms_);
},
/**
* @return {boolean} Whether the user is currently searching for downloads
* (i.e. has a non-empty search term).
*/
isSearching: function() {
return this.searchTerms_.length > 0;
},
/** Opens the current local destination for downloads. */
openDownloadsFolder: chrome.send.bind(chrome, 'openDownloadsFolder'),
/**
* @param {string} id ID of the download to run locally on the user's box.
*/
openFile: chromeSendWithId('openFile'),
/** @param {string} id ID the of the progressing download to pause. */
pause: chromeSendWithId('pause'),
/** @param {string} id ID of the finished download to remove. */
remove: chromeSendWithId('remove'),
/** @param {string} id ID of the paused download to resume. */
resume: chromeSendWithId('resume'),
/**
* @param {string} id ID of the dangerous download to save despite
* warnings.
*/
saveDangerous: chromeSendWithId('saveDangerous'),
/** @param {string} searchText What to search for. */
search: function(searchText) {
var searchTerms = ActionService.splitTerms(searchText);
var sameTerms = searchTerms.length == this.searchTerms_.length;
for (var i = 0; sameTerms && i < searchTerms.length; ++i) {
if (searchTerms[i] != this.searchTerms_[i])
sameTerms = false;
}
if (sameTerms)
return;
this.searchTerms_ = searchTerms;
this.loadMore();
},
/**
* Shows the local folder a finished download resides in.
* @param {string} id ID of the download to show.
*/
show: chromeSendWithId('show'),
/** Undo download removal. */
undo: chrome.send.bind(chrome, 'undo'),
};
cr.addSingletonGetter(ActionService);
return {ActionService: ActionService};
});
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