Index: extensions/renderer/resources/mime_handler_custom_bindings.js |
diff --git a/extensions/renderer/resources/mime_handler_custom_bindings.js b/extensions/renderer/resources/mime_handler_custom_bindings.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..410ba56639e149c2ec475a73611dd1d7ca0f4101 |
--- /dev/null |
+++ b/extensions/renderer/resources/mime_handler_custom_bindings.js |
@@ -0,0 +1,72 @@ |
+// 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. |
+ |
+/** |
+ * Custom bindings for the mime handler API. |
+ */ |
+ |
+var binding = require('binding').Binding.create('mimeHandler'); |
+ |
+var NO_STREAM_ERROR = |
+ 'Streams are only available from a mime handler view guest'; |
+var STREAM_ABORTED_ERROR = 'Stream has been aborted'; |
raymes
2015/01/12 05:26:04
nit: should we add full stops to these messages?
Sam McNally
2015/01/12 07:13:35
Done.
|
+ |
+var servicePromise = Promise.all([ |
+ requireAsync('content/public/renderer/service_provider'), |
+ requireAsync('extensions/common/api/mime_handler.mojom'), |
+ requireAsync('mojo/public/js/router'), |
+]).then(function(modules) { |
+ var serviceProvider = modules[0]; |
+ var mojom = modules[1]; |
+ var routerModule = modules[2]; |
+ return new mojom.MimeHandlerService.proxyClass(new routerModule.Router( |
+ serviceProvider.connectToService(mojom.MimeHandlerService.name))); |
+}); |
+ |
+var streamInfoPromise; |
raymes
2015/01/13 00:05:11
Do we really need to store this promise? Would it
Sam McNally
2015/01/13 05:30:08
Added a comment on what this caches and why.
|
+ |
+function populateStreamInfo() { |
raymes
2015/01/13 00:05:10
Can this be called createStreamInfoPromise?
Sam McNally
2015/01/13 05:30:08
Done.
|
+ streamInfoPromise = servicePromise.then(function(service) { |
+ return service.getStreamInfo(); |
+ }).then(function(result) { |
+ if (!result.stream_info) |
+ throw new Error(STREAM_ABORTED_ERROR); |
+ return result.stream_info; |
+ }, function(error) { |
+ throw new Error(NO_STREAM_ERROR); |
+ }); |
raymes
2015/01/13 00:05:11
Can we pull this apart a bit? Like
serviecPromise
Sam McNally
2015/01/13 05:30:08
Done for the error case. I think the normal case i
|
+} |
+ |
+binding.registerCustomHook(function(bindingsAPI) { |
+ var apiFunctions = bindingsAPI.apiFunctions; |
+ apiFunctions.setHandleRequestWithPromise('getStreamInfo', function() { |
+ if (!streamInfoPromise) |
+ populateStreamInfo(); |
raymes
2015/01/13 00:05:10
If you returned the promise in the function you co
Sam McNally
2015/01/13 05:30:08
Done.
|
+ return streamInfoPromise.then(function(streamInfo) { |
+ var headers = {}; |
+ for (var header of streamInfo.response_headers) { |
+ headers[header[0]] = header[1]; |
+ } |
+ return { |
+ mimeType: streamInfo.mime_type, |
+ originalUrl: streamInfo.original_url, |
+ streamUrl: streamInfo.stream_url, |
+ tabId: streamInfo.tab_id, |
+ expectedContentSize: streamInfo.expected_content_size, |
+ embedded: !!streamInfo.embedded, |
+ responseHeaders: headers, |
+ }; |
+ }); |
+ }); |
+ |
+ apiFunctions.setHandleRequestWithPromise('abortStream', function() { |
+ return servicePromise.then(function(service) { |
+ return service.abortStream().then(function() {}, function() { |
+ throw new Error(NO_STREAM_ERROR); |
+ }); |
+ }); |
+ }); |
+}); |
+ |
+exports.binding = binding.generate(); |