OLD | NEW |
---|---|
(Empty) | |
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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_ | |
6 #define CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_ | |
7 | |
8 #include <list> | |
9 | |
10 #include "base/callback_forward.h" | |
11 #include "base/memory/scoped_ptr.h" | |
12 #include "content/public/common/manifest.h" | |
13 #include "content/public/renderer/render_frame_observer.h" | |
14 | |
15 namespace blink { | |
16 class WebURLResponse; | |
17 } | |
18 | |
19 namespace content { | |
20 | |
21 class ManifestFetcher; | |
22 | |
23 // The ManifestManager is a helper class that takes care of fetching and parsing | |
24 // the Manifest of the associated RenderFrame. It uses the ManifestFetcher and | |
25 // the ManifestParser in order to do so. | |
26 // There are two expected consumers of this helper: ManifestManagerHost, via IPC | |
27 // messages and callers inside the renderer process. The latter should use | |
28 // GetManifest(). | |
29 class ManifestManager : public RenderFrameObserver { | |
30 public: | |
31 typedef base::Callback<void(const Manifest&)> GetManifestCallback; | |
32 | |
33 explicit ManifestManager(RenderFrame* render_frame); | |
34 virtual ~ManifestManager(); | |
35 | |
36 // Will call the given |callback| with the Manifest associated with the | |
37 // RenderFrame if any. Will pass an empty Manifest in case of error. | |
38 void GetManifest(const GetManifestCallback& callback); | |
39 | |
40 // RenderFrameObserver implementation. | |
41 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | |
42 virtual void DidChangeManifest() OVERRIDE; | |
43 | |
44 private: | |
45 enum ResolveState { | |
46 ResolveStateSuccess, | |
47 ResolveStateFailure | |
48 }; | |
49 | |
50 // Called when receiving a ManifestManagerMsg_RequestManifest from the browser | |
51 // process. | |
52 void OnRequestManifest(int request_id); | |
53 void OnRequestManifestComplete(int request_id, const Manifest&); | |
54 | |
55 void DownloadManifest(); | |
kenneth.christiansen
2014/09/11 09:33:10
FetchManifest?
mlamouri (slow - plz ping)
2014/09/11 10:30:32
Done.
| |
56 void OnManifestFetchComplete(const blink::WebURLResponse& response, | |
kenneth.christiansen
2014/09/11 09:33:09
Here Fetch is used, and not Download as above
mlamouri (slow - plz ping)
2014/09/11 10:30:32
Done.
| |
57 const std::string& data); | |
58 void ResolveCallbacks(ResolveState state); | |
59 | |
60 scoped_ptr<ManifestFetcher> fetcher_; | |
61 | |
62 // Whether the RenderFrame may have an associated Manifest. If true, the frame | |
63 // may have a manifest, if false, it can't have one. | |
kenneth.christiansen
2014/09/11 09:33:10
Maybe a bit more explanation to why it cannot have
mlamouri (slow - plz ping)
2014/09/11 10:30:32
Done.
| |
64 bool may_have_manifest_; | |
65 | |
66 // Whether the current Manifest is dirty. | |
67 bool manifest_dirty_; | |
68 | |
69 // Current Manifest. Might be outdated if manifest_dirty_ is true. | |
70 Manifest manifest_; | |
71 | |
72 std::list<GetManifestCallback> pending_callbacks_; | |
73 | |
74 DISALLOW_COPY_AND_ASSIGN(ManifestManager); | |
75 }; | |
76 | |
77 } // namespace content | |
78 | |
79 #endif // CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_ | |
OLD | NEW |