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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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/user_style_sheet_watcher.h" | 5 #include "chrome/browser/user_style_sheet_watcher.h" |
6 | 6 |
7 #include "base/base64.h" | 7 #include "base/base64.h" |
| 8 #include "base/bind.h" |
8 #include "base/file_util.h" | 9 #include "base/file_util.h" |
9 #include "chrome/browser/profiles/profile.h" | 10 #include "chrome/browser/profiles/profile.h" |
10 #include "chrome/common/chrome_notification_types.h" | 11 #include "chrome/common/chrome_notification_types.h" |
11 #include "content/browser/tab_contents/tab_contents.h" | 12 #include "content/browser/tab_contents/tab_contents.h" |
12 #include "content/public/browser/notification_service.h" | 13 #include "content/public/browser/notification_service.h" |
13 #include "content/public/browser/notification_types.h" | 14 #include "content/public/browser/notification_types.h" |
14 | 15 |
15 using ::base::files::FilePathWatcher; | 16 using ::base::files::FilePathWatcher; |
16 using content::BrowserThread; | 17 using content::BrowserThread; |
17 | 18 |
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110 if (rv && !css.empty()) { | 111 if (rv && !css.empty()) { |
111 std::string css_base64; | 112 std::string css_base64; |
112 rv = base::Base64Encode(css, &css_base64); | 113 rv = base::Base64Encode(css, &css_base64); |
113 if (rv) { | 114 if (rv) { |
114 // WebKit knows about data urls, so convert the file to a data url. | 115 // WebKit knows about data urls, so convert the file to a data url. |
115 const char kDataUrlPrefix[] = "data:text/css;charset=utf-8;base64,"; | 116 const char kDataUrlPrefix[] = "data:text/css;charset=utf-8;base64,"; |
116 style_sheet_url = GURL(kDataUrlPrefix + css_base64); | 117 style_sheet_url = GURL(kDataUrlPrefix + css_base64); |
117 } | 118 } |
118 } | 119 } |
119 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, | 120 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, |
120 NewRunnableMethod(this, &UserStyleSheetLoader::SetStyleSheet, | 121 base::Bind(&UserStyleSheetLoader::SetStyleSheet, this, |
121 style_sheet_url)); | 122 style_sheet_url)); |
122 } | 123 } |
123 | 124 |
124 void UserStyleSheetLoader::SetStyleSheet(const GURL& url) { | 125 void UserStyleSheetLoader::SetStyleSheet(const GURL& url) { |
125 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | 126 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
126 | 127 |
127 has_loaded_ = true; | 128 has_loaded_ = true; |
128 user_style_sheet_ = url; | 129 user_style_sheet_ = url; |
129 NotifyLoaded(); | 130 NotifyLoaded(); |
130 } | 131 } |
131 | 132 |
132 UserStyleSheetWatcher::UserStyleSheetWatcher(Profile* profile, | 133 UserStyleSheetWatcher::UserStyleSheetWatcher(Profile* profile, |
133 const FilePath& profile_path) | 134 const FilePath& profile_path) |
134 : profile_(profile), | 135 : profile_(profile), |
135 profile_path_(profile_path), | 136 profile_path_(profile_path), |
136 loader_(new UserStyleSheetLoader) { | 137 loader_(new UserStyleSheetLoader) { |
137 // Listen for when the first render view host is created. If we load | 138 // Listen for when the first render view host is created. If we load |
138 // too fast, the first tab won't hear the notification and won't get | 139 // too fast, the first tab won't hear the notification and won't get |
139 // the user style sheet. | 140 // the user style sheet. |
140 registrar_.Add(this, content::NOTIFICATION_RENDER_VIEW_HOST_CREATED_FOR_TAB, | 141 registrar_.Add(this, content::NOTIFICATION_RENDER_VIEW_HOST_CREATED_FOR_TAB, |
141 content::NotificationService::AllBrowserContextsAndSources()); | 142 content::NotificationService::AllBrowserContextsAndSources()); |
142 } | 143 } |
143 | 144 |
144 UserStyleSheetWatcher::~UserStyleSheetWatcher() { | 145 UserStyleSheetWatcher::~UserStyleSheetWatcher() { |
145 } | 146 } |
146 | 147 |
147 void UserStyleSheetWatcher::Init() { | 148 void UserStyleSheetWatcher::Init() { |
148 // Make sure we run on the file thread. | 149 // Make sure we run on the file thread. |
149 if (!BrowserThread::CurrentlyOn(BrowserThread::FILE)) { | 150 if (!BrowserThread::CurrentlyOn(BrowserThread::FILE)) { |
150 BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE, | 151 BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE, |
151 NewRunnableMethod(this, &UserStyleSheetWatcher::Init)); | 152 base::Bind(&UserStyleSheetWatcher::Init, this)); |
152 return; | 153 return; |
153 } | 154 } |
154 | 155 |
155 if (!file_watcher_.get()) { | 156 if (!file_watcher_.get()) { |
156 file_watcher_.reset(new FilePathWatcher); | 157 file_watcher_.reset(new FilePathWatcher); |
157 FilePath style_sheet_file = profile_path_.AppendASCII(kStyleSheetDir) | 158 FilePath style_sheet_file = profile_path_.AppendASCII(kStyleSheetDir) |
158 .AppendASCII(kUserStyleSheetFile); | 159 .AppendASCII(kUserStyleSheetFile); |
159 if (!file_watcher_->Watch( | 160 if (!file_watcher_->Watch( |
160 style_sheet_file, | 161 style_sheet_file, |
161 loader_.get())) { | 162 loader_.get())) { |
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173 const content::NotificationSource& source, | 174 const content::NotificationSource& source, |
174 const content::NotificationDetails& details) { | 175 const content::NotificationDetails& details) { |
175 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | 176 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
176 DCHECK(type == content::NOTIFICATION_RENDER_VIEW_HOST_CREATED_FOR_TAB); | 177 DCHECK(type == content::NOTIFICATION_RENDER_VIEW_HOST_CREATED_FOR_TAB); |
177 if (profile_->IsSameProfile(Profile::FromBrowserContext( | 178 if (profile_->IsSameProfile(Profile::FromBrowserContext( |
178 content::Source<TabContents>(source)->browser_context()))) { | 179 content::Source<TabContents>(source)->browser_context()))) { |
179 loader_->NotifyLoaded(); | 180 loader_->NotifyLoaded(); |
180 registrar_.RemoveAll(); | 181 registrar_.RemoveAll(); |
181 } | 182 } |
182 } | 183 } |
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