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
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_BROWSER_EXTENSION_ACTION_ICON_FACTORY_H_
#define EXTENSIONS_BROWSER_EXTENSION_ACTION_ICON_FACTORY_H_
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "extensions/browser/extension_icon_image.h"
namespace extensions {
class Extension;
class ExtensionAction;
// Used to get an icon to be used in the UI for an extension action.
// If the extension action icon is the default icon defined in the extension's
// manifest, it is loaded using IconImage. This icon can be loaded
// asynchronously. The factory observes underlying IconImage and notifies its
// own observer when the icon image changes.
class ExtensionActionIconFactory : public IconImage::Observer {
public:
class Observer {
public:
virtual ~Observer() {}
// Called when the underlying icon image changes.
virtual void OnIconUpdated() = 0;
};
// Observer should outlive this.
ExtensionActionIconFactory(const Extension* extension,
ExtensionAction* action,
Observer* observer);
ExtensionActionIconFactory(const ExtensionActionIconFactory&) = delete;
ExtensionActionIconFactory& operator=(const ExtensionActionIconFactory&) =
delete;
~ExtensionActionIconFactory() override;
// Controls whether invisible icons will be returned by GetIcon().
static void SetAllowInvisibleIconsForTest(bool value);
// IconImage override.
void OnExtensionIconImageChanged(IconImage* image) override;
void OnExtensionIconImageDestroyed(IconImage* image) override;
// Gets the extension action icon for the tab.
// If there is an icon set using `SetIcon`, that icon is returned.
// Else, if there is a default icon set for the extension action, the icon is
// created using IconImage. Observer is triggered whenever the icon gets
// updated.
// Else, the extension's placeholder icon is returned.
// In all cases, action's attention and animation icon transformations are
// applied on the icon.
gfx::Image GetIcon(int tab_id);
private:
raw_ptr<const ExtensionAction, DanglingUntriaged> action_;
raw_ptr<Observer, DanglingUntriaged> observer_;
const bool should_check_icons_;
gfx::Image cached_default_icon_image_;
base::ScopedObservation<IconImage,
IconImage::Observer>
icon_image_observation_{this};
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_EXTENSION_ACTION_ICON_FACTORY_H_
|
