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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/browser/ui/webui/options2/font_settings_handler.h" | |
6 | |
7 #include <string> | |
8 | |
9 #include "base/basictypes.h" | |
10 #include "base/bind.h" | |
11 #include "base/bind_helpers.h" | |
12 #include "base/i18n/rtl.h" | |
13 #include "base/string_number_conversions.h" | |
14 #include "base/string_util.h" | |
15 #include "base/values.h" | |
16 #include "chrome/browser/browser_process.h" | |
17 #include "chrome/browser/character_encoding.h" | |
18 #include "chrome/browser/prefs/pref_service.h" | |
19 #include "chrome/browser/profiles/profile.h" | |
20 #include "chrome/browser/ui/webui/options2/font_settings_utils.h" | |
21 #include "chrome/common/chrome_notification_types.h" | |
22 #include "chrome/common/pref_names.h" | |
23 #include "content/public/browser/font_list_async.h" | |
24 #include "content/public/browser/notification_details.h" | |
25 #include "content/public/browser/web_ui.h" | |
26 #include "grit/chromium_strings.h" | |
27 #include "grit/generated_resources.h" | |
28 #include "ui/base/l10n/l10n_util.h" | |
29 | |
30 #if defined(OS_WIN) | |
31 #include "ui/gfx/font.h" | |
32 #include "ui/gfx/platform_font_win.h" | |
33 #endif | |
34 | |
35 namespace { | |
36 | |
37 // Returns the localized name of a font so that settings can find it within the | |
38 // list of system fonts. On Windows, the list of system fonts has names only | |
39 // for the system locale, but the pref value may be in the English name. | |
40 std::string MaybeGetLocalizedFontName(const std::string& font_name) { | |
41 #if defined(OS_WIN) | |
42 gfx::Font font(font_name, 12); // dummy font size | |
43 return static_cast<gfx::PlatformFontWin*>(font.platform_font())-> | |
44 GetLocalizedFontName(); | |
45 #else | |
46 return font_name; | |
47 #endif | |
48 } | |
49 | |
50 } // namespace | |
51 | |
52 | |
53 namespace options { | |
54 | |
55 FontSettingsHandler::FontSettingsHandler() { | |
56 } | |
57 | |
58 FontSettingsHandler::~FontSettingsHandler() { | |
59 } | |
60 | |
61 void FontSettingsHandler::GetLocalizedValues( | |
62 DictionaryValue* localized_strings) { | |
63 DCHECK(localized_strings); | |
64 | |
65 static OptionsStringResource resources[] = { | |
66 { "fontSettingsStandard", | |
67 IDS_FONT_LANGUAGE_SETTING_FONT_SELECTOR_STANDARD_LABEL }, | |
68 { "fontSettingsSerif", | |
69 IDS_FONT_LANGUAGE_SETTING_FONT_SELECTOR_SERIF_LABEL }, | |
70 { "fontSettingsSansSerif", | |
71 IDS_FONT_LANGUAGE_SETTING_FONT_SELECTOR_SANS_SERIF_LABEL }, | |
72 { "fontSettingsFixedWidth", | |
73 IDS_FONT_LANGUAGE_SETTING_FONT_SELECTOR_FIXED_WIDTH_LABEL }, | |
74 { "fontSettingsMinimumSize", | |
75 IDS_FONT_LANGUAGE_SETTING_MINIMUM_FONT_SIZE_TITLE }, | |
76 { "fontSettingsEncoding", | |
77 IDS_FONT_LANGUAGE_SETTING_FONT_SUB_DIALOG_ENCODING_TITLE }, | |
78 { "fontSettingsSizeTiny", | |
79 IDS_FONT_LANGUAGE_SETTING_FONT_SIZE_TINY }, | |
80 { "fontSettingsSizeHuge", | |
81 IDS_FONT_LANGUAGE_SETTING_FONT_SIZE_HUGE }, | |
82 { "fontSettingsLoremIpsum", | |
83 IDS_FONT_LANGUAGE_SETTING_LOREM_IPSUM }, | |
84 }; | |
85 | |
86 RegisterStrings(localized_strings, resources, arraysize(resources)); | |
87 RegisterTitle(localized_strings, "fontSettingsPage", | |
88 IDS_FONT_LANGUAGE_SETTING_FONT_TAB_TITLE); | |
89 localized_strings->SetString("fontSettingsPlaceholder", | |
90 l10n_util::GetStringUTF16( | |
91 IDS_FONT_LANGUAGE_SETTING_PLACEHOLDER)); | |
92 } | |
93 | |
94 void FontSettingsHandler::InitializePage() { | |
95 DCHECK(web_ui()); | |
96 SetUpStandardFontSample(); | |
97 SetUpSerifFontSample(); | |
98 SetUpSansSerifFontSample(); | |
99 SetUpFixedFontSample(); | |
100 SetUpMinimumFontSample(); | |
101 } | |
102 | |
103 void FontSettingsHandler::RegisterMessages() { | |
104 // Perform validation for saved fonts. | |
105 PrefService* pref_service = Profile::FromWebUI(web_ui())->GetPrefs(); | |
106 FontSettingsUtilities::ValidateSavedFonts(pref_service); | |
107 | |
108 // Register for preferences that we need to observe manually. | |
109 standard_font_.Init(prefs::kWebKitStandardFontFamily, pref_service, this); | |
110 serif_font_.Init(prefs::kWebKitSerifFontFamily, pref_service, this); | |
111 sans_serif_font_.Init(prefs::kWebKitSansSerifFontFamily, pref_service, this); | |
112 fixed_font_.Init(prefs::kWebKitFixedFontFamily, pref_service, this); | |
113 font_encoding_.Init(prefs::kDefaultCharset, pref_service, this); | |
114 default_font_size_.Init(prefs::kWebKitDefaultFontSize, pref_service, this); | |
115 default_fixed_font_size_.Init(prefs::kWebKitDefaultFixedFontSize, | |
116 pref_service, this); | |
117 minimum_font_size_.Init(prefs::kWebKitMinimumFontSize, pref_service, this); | |
118 | |
119 web_ui()->RegisterMessageCallback("fetchFontsData", | |
120 base::Bind(&FontSettingsHandler::HandleFetchFontsData, | |
121 base::Unretained(this))); | |
122 } | |
123 | |
124 void FontSettingsHandler::HandleFetchFontsData(const ListValue* args) { | |
125 content::GetFontListAsync( | |
126 base::Bind(&FontSettingsHandler::FontsListHasLoaded, | |
127 base::Unretained(this))); | |
128 } | |
129 | |
130 void FontSettingsHandler::FontsListHasLoaded( | |
131 scoped_ptr<base::ListValue> list) { | |
132 // Selects the directionality for the fonts in the given list. | |
133 for (size_t i = 0; i < list->GetSize(); i++) { | |
134 ListValue* font; | |
135 bool has_font = list->GetList(i, &font); | |
136 DCHECK(has_font); | |
137 string16 value; | |
138 bool has_value = font->GetString(1, &value); | |
139 DCHECK(has_value); | |
140 bool has_rtl_chars = base::i18n::StringContainsStrongRTLChars(value); | |
141 font->Append(Value::CreateStringValue(has_rtl_chars ? "rtl" : "ltr")); | |
142 } | |
143 | |
144 ListValue encoding_list; | |
145 const std::vector<CharacterEncoding::EncodingInfo>* encodings; | |
146 PrefService* pref_service = Profile::FromWebUI(web_ui())->GetPrefs(); | |
147 encodings = CharacterEncoding::GetCurrentDisplayEncodings( | |
148 g_browser_process->GetApplicationLocale(), | |
149 pref_service->GetString(prefs::kStaticEncodings), | |
150 pref_service->GetString(prefs::kRecentlySelectedEncoding)); | |
151 DCHECK(encodings); | |
152 DCHECK(!encodings->empty()); | |
153 | |
154 std::vector<CharacterEncoding::EncodingInfo>::const_iterator it; | |
155 for (it = encodings->begin(); it != encodings->end(); ++it) { | |
156 ListValue* option = new ListValue(); | |
157 if (it->encoding_id) { | |
158 int cmd_id = it->encoding_id; | |
159 std::string encoding = | |
160 CharacterEncoding::GetCanonicalEncodingNameByCommandId(cmd_id); | |
161 string16 name = it->encoding_display_name; | |
162 bool has_rtl_chars = base::i18n::StringContainsStrongRTLChars(name); | |
163 option->Append(Value::CreateStringValue(encoding)); | |
164 option->Append(Value::CreateStringValue(name)); | |
165 option->Append(Value::CreateStringValue(has_rtl_chars ? "rtl" : "ltr")); | |
166 } else { | |
167 // Add empty name/value to indicate a separator item. | |
168 option->Append(Value::CreateStringValue("")); | |
169 option->Append(Value::CreateStringValue("")); | |
170 } | |
171 encoding_list.Append(option); | |
172 } | |
173 | |
174 ListValue selected_values; | |
175 selected_values.Append(Value::CreateStringValue(MaybeGetLocalizedFontName( | |
176 standard_font_.GetValue()))); | |
177 selected_values.Append(Value::CreateStringValue(MaybeGetLocalizedFontName( | |
178 serif_font_.GetValue()))); | |
179 selected_values.Append(Value::CreateStringValue(MaybeGetLocalizedFontName( | |
180 sans_serif_font_.GetValue()))); | |
181 selected_values.Append(Value::CreateStringValue(MaybeGetLocalizedFontName( | |
182 fixed_font_.GetValue()))); | |
183 selected_values.Append(Value::CreateStringValue(font_encoding_.GetValue())); | |
184 | |
185 web_ui()->CallJavascriptFunction("FontSettings.setFontsData", | |
186 *list.get(), encoding_list, | |
187 selected_values); | |
188 } | |
189 | |
190 void FontSettingsHandler::Observe(int type, | |
191 const content::NotificationSource& source, | |
192 const content::NotificationDetails& details) { | |
193 if (type == chrome::NOTIFICATION_PREF_CHANGED) { | |
194 std::string* pref_name = content::Details<std::string>(details).ptr(); | |
195 if (*pref_name == prefs::kWebKitStandardFontFamily) { | |
196 SetUpStandardFontSample(); | |
197 } else if (*pref_name == prefs::kWebKitSerifFontFamily) { | |
198 SetUpSerifFontSample(); | |
199 } else if (*pref_name == prefs::kWebKitSansSerifFontFamily) { | |
200 SetUpSansSerifFontSample(); | |
201 } else if (*pref_name == prefs::kWebKitFixedFontFamily || | |
202 *pref_name == prefs::kWebKitDefaultFixedFontSize) { | |
203 SetUpFixedFontSample(); | |
204 } else if (*pref_name == prefs::kWebKitDefaultFontSize) { | |
205 SetUpStandardFontSample(); | |
206 SetUpSerifFontSample(); | |
207 SetUpSansSerifFontSample(); | |
208 } else if (*pref_name == prefs::kWebKitMinimumFontSize) { | |
209 SetUpMinimumFontSample(); | |
210 } | |
211 } | |
212 } | |
213 | |
214 void FontSettingsHandler::SetUpStandardFontSample() { | |
215 base::StringValue font_value(standard_font_.GetValue()); | |
216 base::FundamentalValue size_value(default_font_size_.GetValue()); | |
217 web_ui()->CallJavascriptFunction( | |
218 "FontSettings.setUpStandardFontSample", font_value, size_value); | |
219 } | |
220 | |
221 void FontSettingsHandler::SetUpSerifFontSample() { | |
222 base::StringValue font_value(serif_font_.GetValue()); | |
223 base::FundamentalValue size_value(default_font_size_.GetValue()); | |
224 web_ui()->CallJavascriptFunction( | |
225 "FontSettings.setUpSerifFontSample", font_value, size_value); | |
226 } | |
227 | |
228 void FontSettingsHandler::SetUpSansSerifFontSample() { | |
229 base::StringValue font_value(sans_serif_font_.GetValue()); | |
230 base::FundamentalValue size_value(default_font_size_.GetValue()); | |
231 web_ui()->CallJavascriptFunction( | |
232 "FontSettings.setUpSansSerifFontSample", font_value, size_value); | |
233 } | |
234 | |
235 void FontSettingsHandler::SetUpFixedFontSample() { | |
236 base::StringValue font_value(fixed_font_.GetValue()); | |
237 base::FundamentalValue size_value(default_fixed_font_size_.GetValue()); | |
238 web_ui()->CallJavascriptFunction( | |
239 "FontSettings.setUpFixedFontSample", font_value, size_value); | |
240 } | |
241 | |
242 void FontSettingsHandler::SetUpMinimumFontSample() { | |
243 base::FundamentalValue size_value(minimum_font_size_.GetValue()); | |
244 web_ui()->CallJavascriptFunction("FontSettings.setUpMinimumFontSample", | |
245 size_value); | |
246 } | |
247 | |
248 } // namespace options | |
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