blob: 7d33c3ef936cd5ef71c3cee4a1b2e21f6befe92f (
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
// 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.
#ifndef COMPONENTS_FAVICON_CORE_FAVICON_DRIVER_IMPL_H_
#define COMPONENTS_FAVICON_CORE_FAVICON_DRIVER_IMPL_H_
#include <memory>
#include <vector>
#include "base/macros.h"
#include "components/favicon/core/favicon_driver.h"
#include "components/favicon/core/favicon_handler.h"
class GURL;
namespace bookmarks {
class BookmarkModel;
}
namespace history {
class HistoryService;
}
namespace favicon {
class FaviconService;
struct FaviconURL;
// FaviconDriverImpl is a partial implementation of FaviconDriver that allow
// sharing implementation between different embedder.
//
// FaviconDriverImpl works with FaviconHandlers to fetch the favicons. It
// fetches the given page's icons, requesting them from history backend. If the
// icon is not available or expired, the icon will be downloaded and saved in
// the history backend.
class FaviconDriverImpl : public FaviconDriver,
public FaviconHandler::Delegate {
public:
// FaviconDriver implementation.
void FetchFavicon(const GURL& url) override;
// FaviconHandler::Delegate implementation.
bool IsBookmarked(const GURL& url) override;
// Returns whether the driver is waiting for a download to complete or for
// data from the FaviconService. Reserved for testing.
bool HasPendingTasksForTest();
protected:
FaviconDriverImpl(FaviconService* favicon_service,
history::HistoryService* history_service,
bookmarks::BookmarkModel* bookmark_model);
~FaviconDriverImpl() override;
// Returns whether downloading favicon for |url| previously failed.
bool WasUnableToDownloadFavicon(const GURL& url);
// Informs FaviconService that the favicon for |url| is out of date. If
// |force_reload| is true, then discard information about favicon download
// failures.
void SetFaviconOutOfDateForPage(const GURL& url, bool force_reload);
// Broadcasts new favicon URL candidates to FaviconHandlers.
void OnUpdateFaviconURL(const GURL& page_url,
const std::vector<FaviconURL>& candidates);
protected:
history::HistoryService* history_service() { return history_service_; }
FaviconService* favicon_service() { return favicon_service_; }
private:
// KeyedServices used by FaviconDriverImpl. They may be null during testing,
// but if they are defined, they must outlive the FaviconDriverImpl.
FaviconService* favicon_service_;
history::HistoryService* history_service_;
bookmarks::BookmarkModel* bookmark_model_;
// FaviconHandlers used to download the different kind of favicons.
// |touch_icon_handler_| may be null depending on the platform and variations.
std::unique_ptr<FaviconHandler> favicon_handler_;
std::unique_ptr<FaviconHandler> touch_icon_handler_;
DISALLOW_COPY_AND_ASSIGN(FaviconDriverImpl);
};
} // namespace favicon
#endif // COMPONENTS_FAVICON_CORE_FAVICON_DRIVER_IMPL_H_
|
