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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 "chrome/browser/ui/prefs/prefs_tab_helper.h" | 5 #include "chrome/browser/ui/prefs/prefs_tab_helper.h" |
6 | 6 |
7 #include <string> | 7 #include <string> |
8 | 8 |
9 #include "base/prefs/overlay_user_pref_store.h" | 9 #include "base/prefs/overlay_user_pref_store.h" |
10 #include "base/prefs/pref_service.h" | 10 #include "base/prefs/pref_service.h" |
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124 #endif // !defined(OS_ANDROID) | 124 #endif // !defined(OS_ANDROID) |
125 | 125 |
126 // Registers |obs| to observe per-script font prefs under the path |map_name|. | 126 // Registers |obs| to observe per-script font prefs under the path |map_name|. |
127 // On android, there's no exposed way to change these prefs, so we can save | 127 // On android, there's no exposed way to change these prefs, so we can save |
128 // ~715KB of heap and some startup cycles by avoiding observing these prefs | 128 // ~715KB of heap and some startup cycles by avoiding observing these prefs |
129 // since they will never change. | 129 // since they will never change. |
130 void RegisterFontFamilyMapObserver( | 130 void RegisterFontFamilyMapObserver( |
131 PrefChangeRegistrar* registrar, | 131 PrefChangeRegistrar* registrar, |
132 const char* map_name, | 132 const char* map_name, |
133 const PrefChangeRegistrar::NamedChangeCallback& obs) { | 133 const PrefChangeRegistrar::NamedChangeCallback& obs) { |
134 bool result = StartsWithASCII(map_name, "webkit.webprefs.", true); | 134 DCHECK(StartsWithASCII(map_name, "webkit.webprefs.", true)); |
135 DCHECK(result); | 135 |
136 for (size_t i = 0; i < prefs::kWebKitScriptsForFontFamilyMapsLength; ++i) { | 136 for (size_t i = 0; i < prefs::kWebKitScriptsForFontFamilyMapsLength; ++i) { |
137 const char* script = prefs::kWebKitScriptsForFontFamilyMaps[i]; | 137 const char* script = prefs::kWebKitScriptsForFontFamilyMaps[i]; |
138 std::string pref_name = base::StringPrintf("%s.%s", map_name, script); | 138 registrar->Add(base::StringPrintf("%s.%s", map_name, script), obs); |
139 registrar->Add(pref_name.c_str(), obs); | |
140 } | 139 } |
141 } | 140 } |
142 | 141 |
143 #if defined(OS_WIN) | 142 #if defined(OS_WIN) |
144 // On Windows with antialising we want to use an alternate fixed font like | 143 // On Windows with antialising we want to use an alternate fixed font like |
145 // Consolas, which looks much better than Courier New. | 144 // Consolas, which looks much better than Courier New. |
146 bool ShouldUseAlternateDefaultFixedFont(const std::string& script) { | 145 bool ShouldUseAlternateDefaultFixedFont(const std::string& script) { |
147 if (!StartsWithASCII(script, "courier", false)) | 146 if (!StartsWithASCII(script, "courier", false)) |
148 return false; | 147 return false; |
149 UINT smooth_type = 0; | 148 UINT smooth_type = 0; |
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625 // is normally okay since WebKit does the desired fallback behavior regardless | 624 // is normally okay since WebKit does the desired fallback behavior regardless |
626 // of whether the empty string is passed or the pref is not passed at all. But | 625 // of whether the empty string is passed or the pref is not passed at all. But |
627 // if the pref has changed from non-empty to the empty string, we must let | 626 // if the pref has changed from non-empty to the empty string, we must let |
628 // WebKit know. | 627 // WebKit know. |
629 std::string generic_family; | 628 std::string generic_family; |
630 std::string script; | 629 std::string script; |
631 if (pref_names_util::ParseFontNamePrefPath(pref_name, | 630 if (pref_names_util::ParseFontNamePrefPath(pref_name, |
632 &generic_family, | 631 &generic_family, |
633 &script)) { | 632 &script)) { |
634 PrefService* prefs = GetProfile()->GetPrefs(); | 633 PrefService* prefs = GetProfile()->GetPrefs(); |
635 std::string pref_value = prefs->GetString(pref_name.c_str()); | 634 std::string pref_value = prefs->GetString(pref_name); |
636 if (pref_value.empty()) { | 635 if (pref_value.empty()) { |
637 WebPreferences web_prefs = | 636 WebPreferences web_prefs = |
638 web_contents_->GetRenderViewHost()->GetWebkitPreferences(); | 637 web_contents_->GetRenderViewHost()->GetWebkitPreferences(); |
639 OverrideFontFamily(&web_prefs, generic_family, script, std::string()); | 638 OverrideFontFamily(&web_prefs, generic_family, script, std::string()); |
640 web_contents_->GetRenderViewHost()->UpdateWebkitPreferences(web_prefs); | 639 web_contents_->GetRenderViewHost()->UpdateWebkitPreferences(web_prefs); |
641 return; | 640 return; |
642 } | 641 } |
643 } | 642 } |
644 } | 643 } |
645 | 644 |
646 void PrefsTabHelper::OnWebPrefChanged(const std::string& pref_name) { | 645 void PrefsTabHelper::OnWebPrefChanged(const std::string& pref_name) { |
647 #if !defined(OS_ANDROID) | 646 #if !defined(OS_ANDROID) |
648 OnFontFamilyPrefChanged(pref_name); | 647 OnFontFamilyPrefChanged(pref_name); |
649 #endif | 648 #endif |
650 | 649 |
651 web_contents_->GetRenderViewHost()->OnWebkitPreferencesChanged(); | 650 web_contents_->GetRenderViewHost()->OnWebkitPreferencesChanged(); |
652 } | 651 } |
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