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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Custom binding for the runtime API. | 5 // Custom binding for the runtime API. |
6 | 6 |
7 var binding = apiBridge || require('binding').Binding.create('runtime'); | 7 var binding = apiBridge || require('binding').Binding.create('runtime'); |
8 | 8 |
9 var messaging = require('messaging'); | 9 var messaging = require('messaging'); |
10 var runtimeNatives = requireNative('runtime'); | 10 var runtimeNatives = requireNative('runtime'); |
11 var messagingNatives = requireNative('messaging_natives'); | 11 var messagingNatives = requireNative('messaging_natives'); |
12 var process = requireNative('process'); | 12 var process = requireNative('process'); |
13 var utils = require('utils'); | 13 var utils = require('utils'); |
14 | 14 var getBindDirectoryEntryCallback = |
15 var WINDOW = {}; | 15 require('fileEntryBindingUtil').getBindDirectoryEntryCallback; |
16 try { | |
17 WINDOW = window; | |
18 } catch (e) { | |
19 // Running in SW context. | |
20 // TODO(lazyboy): Synchronous access to background page is not possible from | |
21 // service worker context. Decide what we should do in this case for the class | |
22 // of APIs that require access to background page or window object | |
23 } | |
24 | |
25 var backgroundPage = WINDOW; | |
26 var backgroundRequire = require; | |
27 var contextType = process.GetContextType(); | |
28 | |
29 if (contextType == 'BLESSED_EXTENSION' || | |
30 contextType == 'UNBLESSED_EXTENSION') { | |
31 var manifest = runtimeNatives.GetManifest(); | |
32 if (manifest.app && manifest.app.background) { | |
33 // Get the background page if one exists. Otherwise, default to the current | |
34 // window. | |
35 backgroundPage = runtimeNatives.GetExtensionViews(-1, -1, 'BACKGROUND')[0]; | |
36 if (backgroundPage) { | |
37 var GetModuleSystem = requireNative('v8_context').GetModuleSystem; | |
38 backgroundRequire = GetModuleSystem(backgroundPage).require; | |
39 } else { | |
40 backgroundPage = WINDOW; | |
41 } | |
42 } | |
43 } | |
44 | |
45 // For packaged apps, all windows use the bindFileEntryCallback from the | |
46 // background page so their FileEntry objects have the background page's context | |
47 // as their own. This allows them to be used from other windows (including the | |
48 // background page) after the original window is closed. | |
49 if (WINDOW == backgroundPage) { | |
50 var lastError = require('lastError'); | |
51 var fileSystemNatives = requireNative('file_system_natives'); | |
52 var GetIsolatedFileSystem = fileSystemNatives.GetIsolatedFileSystem; | |
53 var bindDirectoryEntryCallback = function(functionName, apiFunctions) { | |
54 apiFunctions.setCustomCallback(functionName, | |
55 function(name, request, callback, response) { | |
56 if (callback) { | |
57 if (!response) { | |
58 callback(); | |
59 return; | |
60 } | |
61 var fileSystemId = response.fileSystemId; | |
62 var baseName = response.baseName; | |
63 var fs = GetIsolatedFileSystem(fileSystemId); | |
64 | |
65 try { | |
66 fs.root.getDirectory(baseName, {}, callback, function(fileError) { | |
67 lastError.run('runtime.' + functionName, | |
68 'Error getting Entry, code: ' + fileError.code, | |
69 request.stack, | |
70 callback); | |
71 }); | |
72 } catch (e) { | |
73 lastError.run('runtime.' + functionName, | |
74 'Error: ' + e.stack, | |
75 request.stack, | |
76 callback); | |
77 } | |
78 } | |
79 }); | |
80 }; | |
81 } else { | |
82 // Force the runtime API to be loaded in the background page. Using | |
83 // backgroundPageModuleSystem.require('runtime') is insufficient as | |
84 // requireNative is only allowed while lazily loading an API. | |
85 backgroundPage.chrome.runtime; | |
86 var bindDirectoryEntryCallback = | |
87 backgroundRequire('runtime').bindDirectoryEntryCallback; | |
88 } | |
89 | 16 |
90 binding.registerCustomHook(function(binding, id, contextType) { | 17 binding.registerCustomHook(function(binding, id, contextType) { |
91 var apiFunctions = binding.apiFunctions; | 18 var apiFunctions = binding.apiFunctions; |
92 var runtime = binding.compiledApi; | 19 var runtime = binding.compiledApi; |
93 | 20 |
94 // | 21 // |
95 // Unprivileged APIs. | 22 // Unprivileged APIs. |
96 // | 23 // |
97 | 24 |
98 if (id != '') | 25 if (id != '') |
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177 | 104 |
178 apiFunctions.setCustomCallback('getBackgroundPage', | 105 apiFunctions.setCustomCallback('getBackgroundPage', |
179 function(name, request, callback, response) { | 106 function(name, request, callback, response) { |
180 if (callback) { | 107 if (callback) { |
181 var bg = | 108 var bg = |
182 runtimeNatives.GetExtensionViews(-1, -1, 'BACKGROUND')[0] || null; | 109 runtimeNatives.GetExtensionViews(-1, -1, 'BACKGROUND')[0] || null; |
183 callback(bg); | 110 callback(bg); |
184 } | 111 } |
185 }); | 112 }); |
186 | 113 |
187 bindDirectoryEntryCallback('getPackageDirectoryEntry', apiFunctions); | 114 apiFunctions.setCustomCallback('getPackageDirectoryEntry', |
| 115 getBindDirectoryEntryCallback()); |
188 }); | 116 }); |
189 | 117 |
190 exports.$set('bindDirectoryEntryCallback', bindDirectoryEntryCallback); | |
191 if (!apiBridge) | 118 if (!apiBridge) |
192 exports.$set('binding', binding.generate()); | 119 exports.$set('binding', binding.generate()); |
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