Home | History | Annotate | Download | only in indexed_db 
      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 cr.define('indexeddb', function() {
      6   'use strict';
      7 
      8   function initialize() {
      9     chrome.send('getAllOrigins');
     10   }
     11 
     12   function progressNodeFor(link) {
     13     return link.parentNode.querySelector('.download-status');
     14   }
     15 
     16   function downloadOriginData(event) {
     17     var link = event.target;
     18     progressNodeFor(link).style.display = 'inline';
     19     chrome.send('downloadOriginData', [link.idb_partition_path,
     20                                        link.idb_origin_url]);
     21     return false;
     22   }
     23 
     24   function forceClose(event) {
     25     var link = event.target;
     26     progressNodeFor(link).style.display = 'inline';
     27     chrome.send('forceClose', [link.idb_partition_path,
     28                                link.idb_origin_url]);
     29     return false;
     30   }
     31 
     32   function withNode(selector, partition_path, origin_url, callback) {
     33     var links = document.querySelectorAll(selector);
     34     for (var i = 0; i < links.length; ++i) {
     35       var link = links[i];
     36       if (partition_path == link.idb_partition_path &&
     37           origin_url == link.idb_origin_url) {
     38         callback(link);
     39       }
     40     }
     41   }
     42   // Fired from the backend after the data has been zipped up, and the
     43   // download manager has begun downloading the file.
     44   function onOriginDownloadReady(partition_path, origin_url, connection_count) {
     45     withNode('a.download', partition_path, origin_url, function(link) {
     46       progressNodeFor(link).style.display = 'none';
     47     });
     48     withNode('.connection-count', partition_path, origin_url, function(span) {
     49       span.innerText = connection_count;
     50     });
     51   }
     52 
     53   function onForcedClose(partition_path, origin_url, connection_count) {
     54     withNode('a.force-close', partition_path, origin_url, function(link) {
     55       progressNodeFor(link).style.display = 'none';
     56     });
     57     withNode('.connection-count', partition_path, origin_url, function(span) {
     58       span.innerText = connection_count;
     59     });
     60   }
     61 
     62   // Fired from the backend with a single partition's worth of
     63   // IndexedDB metadata.
     64   function onOriginsReady(origins, partition_path) {
     65     var template = jstGetTemplate('indexeddb-list-template');
     66     var container = $('indexeddb-list');
     67     container.appendChild(template);
     68     jstProcess(new JsEvalContext({ idbs: origins,
     69                                    partition_path: partition_path}), template);
     70 
     71     var downloadLinks = container.querySelectorAll('a.download');
     72     for (var i = 0; i < downloadLinks.length; ++i) {
     73       downloadLinks[i].addEventListener('click', downloadOriginData, false);
     74     }
     75     var forceCloseLinks = container.querySelectorAll('a.force-close');
     76     for (i = 0; i < forceCloseLinks.length; ++i) {
     77       forceCloseLinks[i].addEventListener('click', forceClose, false);
     78     }
     79   }
     80 
     81   return {
     82     initialize: initialize,
     83     onForcedClose: onForcedClose,
     84     onOriginDownloadReady: onOriginDownloadReady,
     85     onOriginsReady: onOriginsReady,
     86   };
     87 });
     88 
     89 document.addEventListener('DOMContentLoaded', indexeddb.initialize);
     90