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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 fileSystem API. | 5 // Custom binding for the fileSystem API. |
6 | 6 |
7 var binding = require('binding').Binding.create('fileSystem'); | 7 var binding = require('binding').Binding.create('fileSystem'); |
8 | 8 |
9 var fileSystemNatives = requireNative('file_system_natives'); | 9 var fileSystemNatives = requireNative('file_system_natives'); |
10 var GetIsolatedFileSystem = fileSystemNatives.GetIsolatedFileSystem; | 10 var GetIsolatedFileSystem = fileSystemNatives.GetIsolatedFileSystem; |
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23 // allows them to be used from other windows (including the background page) | 23 // allows them to be used from other windows (including the background page) |
24 // after the original window is closed. | 24 // after the original window is closed. |
25 if (window == backgroundPage) { | 25 if (window == backgroundPage) { |
26 var bindFileEntryCallback = function(functionName, apiFunctions) { | 26 var bindFileEntryCallback = function(functionName, apiFunctions) { |
27 apiFunctions.setCustomCallback(functionName, | 27 apiFunctions.setCustomCallback(functionName, |
28 function(name, request, response) { | 28 function(name, request, response) { |
29 if (request.callback && response) { | 29 if (request.callback && response) { |
30 var callback = request.callback; | 30 var callback = request.callback; |
31 request.callback = null; | 31 request.callback = null; |
32 | 32 |
33 var fileSystemId = response.fileSystemId; | 33 var entries = []; |
34 var baseName = response.baseName; | 34 var hasError = false; |
35 var id = response.id; | |
36 var fs = GetIsolatedFileSystem(fileSystemId); | |
37 | 35 |
38 try { | 36 $Array.forEach(response.entries, function(entry) { |
39 // TODO(koz): fs.root.getFile() makes a trip to the browser process, | 37 var fileSystemId = entry.fileSystemId; |
40 // but it might be possible avoid that by calling | 38 var baseName = entry.baseName; |
41 // WebFrame::createFileEntry(). | 39 var id = entry.id; |
42 fs.root.getFile(baseName, {}, function(fileEntry) { | 40 var fs = GetIsolatedFileSystem(fileSystemId); |
benwells
2013/08/01 07:48:33
Should you check hasError here instead of in the e
Sam McNally
2013/08/02 05:35:31
Added a comment describing what's going on here.
| |
43 entryIdManager.registerEntry(id, fileEntry); | 41 |
44 callback(fileEntry); | 42 try { |
45 }, function(fileError) { | 43 // TODO(koz): fs.root.getFile() makes a trip to the browser process, |
46 lastError.run('fileSystem.' + functionName, | 44 // but it might be possible avoid that by calling |
47 'Error getting fileEntry, code: ' + fileError.code, | 45 // WebFrame::createFileEntry(). |
48 request.stack, | 46 fs.root.getFile(baseName, {}, function(fileEntry) { |
49 callback); | 47 entryIdManager.registerEntry(id, fileEntry); |
50 }); | 48 entries.push(fileEntry); |
51 } catch (e) { | 49 // Once all entries are ready, pass them to the callback. |
52 lastError.run('fileSystem.' + functionName, | 50 if (entries.length == response.entries.length) { |
53 'Error in event handler for onLaunched: ' + e.stack, | 51 if (response.multiple) { |
54 request.stack, | 52 callback(entries); |
55 callback); | 53 } else { |
56 } | 54 callback(entries[0]); |
55 } | |
56 } | |
57 }, function(fileError) { | |
58 if (!hasError) { | |
59 hasError = true; | |
60 lastError.run( | |
61 'fileSystem.' + functionName, | |
62 'Error getting fileEntry, code: ' + fileError.code, | |
63 request.stack, | |
64 callback); | |
65 } | |
66 }); | |
67 } catch (e) { | |
68 if (!hasError) { | |
69 hasError = true; | |
70 lastError.run('fileSystem.' + functionName, | |
71 'Error getting fileEntry: ' + e.stack, | |
72 request.stack, | |
73 callback); | |
74 } | |
75 } | |
76 }); | |
57 } | 77 } |
58 }); | 78 }); |
59 }; | 79 }; |
60 var entryIdManager = require('entryIdManager'); | 80 var entryIdManager = require('entryIdManager'); |
61 } else { | 81 } else { |
62 // Force the fileSystem API to be loaded in the background page. Using | 82 // Force the fileSystem API to be loaded in the background page. Using |
63 // backgroundPageModuleSystem.require('fileSystem') is insufficient as | 83 // backgroundPageModuleSystem.require('fileSystem') is insufficient as |
64 // requireNative is only allowed while lazily loading an API. | 84 // requireNative is only allowed while lazily loading an API. |
65 backgroundPage.chrome.fileSystem; | 85 backgroundPage.chrome.fileSystem; |
66 var bindFileEntryCallback = backgroundPageModuleSystem.require( | 86 var bindFileEntryCallback = backgroundPageModuleSystem.require( |
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140 | 160 |
141 fileSystem.chooseFile = function() { | 161 fileSystem.chooseFile = function() { |
142 console.log("chrome.fileSystem.chooseFile is deprecated"); | 162 console.log("chrome.fileSystem.chooseFile is deprecated"); |
143 console.log("Please use chrome.fileSystem.chooseEntry instead"); | 163 console.log("Please use chrome.fileSystem.chooseEntry instead"); |
144 $Function.apply(fileSystem.chooseEntry, this, arguments); | 164 $Function.apply(fileSystem.chooseEntry, this, arguments); |
145 }; | 165 }; |
146 }); | 166 }); |
147 | 167 |
148 exports.bindFileEntryCallback = bindFileEntryCallback; | 168 exports.bindFileEntryCallback = bindFileEntryCallback; |
149 exports.binding = binding.generate(); | 169 exports.binding = binding.generate(); |
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