chrome/renderer/resources/extensions/file_browser_private_custom_bindings.js

   1 // Copyright (c) 2012 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 // Custom binding for the fileBrowserPrivate API.
   6
   7 var binding = require('binding').Binding.create('fileBrowserPrivate');
   8
   9 var eventBindings = require('event_bindings');
  10 var fileBrowserPrivateNatives = requireNative('file_browser_private');
  11 var GetFileSystem = fileBrowserPrivateNatives.GetFileSystem;
  12
  13 var fileBrowserNatives = requireNative('file_browser_handler');
  14 var GetExternalFileEntry = fileBrowserNatives.GetExternalFileEntry;
  15
  16 binding.registerCustomHook(function(bindingsAPI) {
  17   var apiFunctions = bindingsAPI.apiFunctions;
  18
  19   apiFunctions.setCustomCallback('requestFileSystem',
  20                                  function(name, request, response) {
  21     var fs = null;
  22     if (response && !response.error)
  23       fs = GetFileSystem(response.name, response.root_url);
  24     if (request.callback)
  25       request.callback(fs);
  26     request.callback = null;
  27   });
  28
  29   apiFunctions.setCustomCallback('searchDrive',
  30                                  function(name, request, response) {
  31     if (response && !response.error && response.entries) {
  32       response.entries = response.entries.map(function(entry) {
  33         return GetExternalFileEntry(entry);
  34       });
  35     }
  36
  37     // So |request.callback| doesn't break if response is not defined.
  38     if (!response)
  39       response = {};
  40
  41     if (request.callback)
  42       request.callback(response.entries, response.nextFeed);
  43     request.callback = null;
  44   });
  45
  46   apiFunctions.setCustomCallback('searchDriveMetadata',
  47                                  function(name, request, response) {
  48     if (response && !response.error) {
  49       for (var i = 0; i < response.length; i++) {
  50         response[i].entry =
  51             GetExternalFileEntry(response[i].entry);
  52       }
  53     }
  54
  55     // So |request.callback| doesn't break if response is not defined.
  56     if (!response)
  57       response = {};
  58
  59     if (request.callback)
  60       request.callback(response);
  61     request.callback = null;
  62   });
  63 });
  64
  65 eventBindings.registerArgumentMassager(
  66     'fileBrowserPrivate.onDirectoryChanged', function(args, dispatch) {
  67   // Convert the entry arguments into a real Entry object.
  68   args[0].entry = GetExternalFileEntry(args[0].entry);
  69   dispatch(args);
  70 });
  71
  72 exports.binding = binding.generate();