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Issue 886163003: [Favicon] Add FallbackIconStyle and FallbackIconService. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 10 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "components/favicon_base/favicon_types.h" 5 #include "components/favicon_base/favicon_types.h"
6 #include "ui/gfx/color_utils.h"
6 7
7 namespace favicon_base { 8 namespace favicon_base {
8 9
9 // FaviconImageResult --------------------------------------------------------- 10 namespace {
11
12 // Luminance threshold for background color determine whether to use dark or
13 // light text color.
14 int kDarkTextLuminanceThreshold = 190;
15
16 // Default values for FallbackIconStyle.
17 SkColor kDefaultBackgroundColor = SkColorSetRGB(0x80, 0x80, 0x80);
18 SkColor kDefaultTextColorDark = SK_ColorBLACK;
19 SkColor kDefaultTextColorLight = SK_ColorWHITE;
20 double kDefaultFontSizeRatio = 0.8;
21 double kDefaultRoundness = 0.125; // 1 / 8.
22
23 } // namespace
24
25 // ---------------------------------------------------------
26 // FaviconImageResult
10 27
11 FaviconImageResult::FaviconImageResult() {} 28 FaviconImageResult::FaviconImageResult() {}
12 29
13 FaviconImageResult::~FaviconImageResult() {} 30 FaviconImageResult::~FaviconImageResult() {}
14 31
32 // --------------------------------------------------------
15 // FaviconRawBitmapResult 33 // FaviconRawBitmapResult
16 // --------------------------------------------------------
17 34
18 FaviconRawBitmapResult::FaviconRawBitmapResult() 35 FaviconRawBitmapResult::FaviconRawBitmapResult()
19 : expired(false), icon_type(INVALID_ICON) { 36 : expired(false), icon_type(INVALID_ICON) {
20 } 37 }
21 38
22 FaviconRawBitmapResult::~FaviconRawBitmapResult() { 39 FaviconRawBitmapResult::~FaviconRawBitmapResult() {
23 } 40 }
24 41
25 } // namespace chrome 42 // --------------------------------------------------------
43 // FallbackIconStyle
44
45 FallbackIconStyle::FallbackIconStyle()
46 : background_color(kDefaultBackgroundColor),
47 text_color(kDefaultTextColorLight),
48 font_size_ratio(kDefaultFontSizeRatio),
49 roundness(kDefaultRoundness) {
50 }
51
52 FallbackIconStyle::~FallbackIconStyle() {
53 }
54
55 void FallbackIconStyle::MatchTextColorWithBackgroundColor() {
56 int luminance = color_utils::GetLuminanceForColor(background_color);
57 text_color = (luminance >= kDarkTextLuminanceThreshold ?
58 kDefaultTextColorDark : kDefaultTextColorLight);
59 }
60
61 bool FallbackIconStyle::is_valid() const {
62 return font_size_ratio >= 0.0 && font_size_ratio <= 1.0 &&
63 roundness >= 0.0 && roundness <= 1.0;
64 }
65
66 } // namespace favicon_base
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