blob: 069a5303b836091a171cf8b486dd455fa106854f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
// Copyright 2014 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.
#ifndef CONTENT_BROWSER_MANIFEST_MANIFEST_MANAGER_HOST_H_
#define CONTENT_BROWSER_MANIFEST_MANIFEST_MANAGER_HOST_H_
#include "base/callback_forward.h"
#include "base/id_map.h"
#include "base/macros.h"
#include "content/public/browser/web_contents_observer.h"
namespace content {
class RenderFrameHost;
class WebContents;
struct Manifest;
// ManifestManagerHost is a helper class that allows callers to get the Manifest
// associated with a frame. It handles the IPC messaging with the child process.
// TODO(mlamouri): keep a cached version and a dirty bit here.
class ManifestManagerHost : public WebContentsObserver {
public:
explicit ManifestManagerHost(WebContents* web_contents);
~ManifestManagerHost() override;
using GetManifestCallback = base::Callback<void(const Manifest&)>;
using HasManifestCallback = base::Callback<void(bool)>;
// Calls the given callback with the manifest associated with the
// given RenderFrameHost. If the frame has no manifest or if getting it failed
// the callback will have an empty manifest.
void GetManifest(RenderFrameHost*, const GetManifestCallback&);
// Calls the given callback with a bool indicating whether or not the document
// associated with the given RenderFrameHost has a manifest.
void HasManifest(RenderFrameHost*, const HasManifestCallback&);
// WebContentsObserver
bool OnMessageReceived(const IPC::Message&, RenderFrameHost*) override;
void RenderFrameDeleted(RenderFrameHost*) override;
private:
using GetCallbackMap = IDMap<GetManifestCallback, IDMapOwnPointer>;
using HasCallbackMap = IDMap<HasManifestCallback, IDMapOwnPointer>;
using FrameGetCallbackMap = base::hash_map<RenderFrameHost*, GetCallbackMap*>;
using FrameHasCallbackMap = base::hash_map<RenderFrameHost*, HasCallbackMap*>;
void OnRequestManifestResponse(
RenderFrameHost*, int request_id, const Manifest&);
void OnHasManifestResponse(
RenderFrameHost*, int request_id, bool);
// Returns the CallbackMap associated with the given RenderFrameHost, or null.
GetCallbackMap* GetCallbackMapForFrame(RenderFrameHost*);
HasCallbackMap* HasCallbackMapForFrame(RenderFrameHost*);
FrameGetCallbackMap pending_get_callbacks_;
FrameHasCallbackMap pending_has_callbacks_;
DISALLOW_COPY_AND_ASSIGN(ManifestManagerHost);
};
} // namespace content
#endif // CONTENT_BROWSER_MANIFEST_MANIFEST_MANAGER_HOST_H_
|
