blob: cf4da937b08e78269e5378a2a77bc91aead18da2 (
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
|
// Copyright 2013 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 CHROME_BROWSER_THEMES_CUSTOM_THEME_SUPPLIER_H_
#define CHROME_BROWSER_THEMES_CUSTOM_THEME_SUPPLIER_H_
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "content/public/browser/browser_thread.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/base/layout.h"
namespace base {
class RefCountedMemory;
}
namespace color_utils {
struct HSL;
}
namespace gfx {
class Image;
}
// A representation of a theme. All theme properties can be accessed through the
// public methods. Subclasses are expected to override all methods which should
// provide non-default values.
class CustomThemeSupplier : public base::RefCountedThreadSafe<
CustomThemeSupplier, content::BrowserThread::DeleteOnFileThread> {
public:
enum ThemeType {
EXTENSION,
NATIVE_X11,
SUPERVISED_USER_THEME,
};
explicit CustomThemeSupplier(ThemeType type);
ThemeType get_theme_type() const {
return theme_type_;
}
// Called when the theme starts being used.
virtual void StartUsingTheme();
// Called when the theme is not used anymore.
virtual void StopUsingTheme();
// If the theme specifies data for the corresponding |id|, returns true and
// writes the corresponding value to the output parameter. These methods
// should not return the default data. These methods should only be called
// from the UI thread.
virtual bool GetTint(int id, color_utils::HSL* hsl) const;
virtual bool GetColor(int id, SkColor* color) const;
virtual bool GetDisplayProperty(int id, int* result) const;
// Returns the theme image for |id|. Returns an empty image if no image is
// found for |id|.
virtual gfx::Image GetImageNamed(int id);
// Returns the raw PNG encoded data for IDR_THEME_NTP_*. This method only
// works for the NTP attribution and background resources.
virtual base::RefCountedMemory* GetRawData(
int id, ui::ScaleFactor scale_factor) const;
// Whether this theme provides an image for |id|.
virtual bool HasCustomImage(int id) const;
protected:
virtual ~CustomThemeSupplier();
private:
friend struct content::BrowserThread::DeleteOnThread<
content::BrowserThread::FILE>;
friend class base::DeleteHelper<CustomThemeSupplier>;
ThemeType theme_type_;
DISALLOW_COPY_AND_ASSIGN(CustomThemeSupplier);
};
#endif // CHROME_BROWSER_THEMES_CUSTOM_THEME_SUPPLIER_H_
|
