Index: chrome/browser/ui/webui/big_icon_source.h |
diff --git a/chrome/browser/ui/webui/big_icon_source.h b/chrome/browser/ui/webui/big_icon_source.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..4106b48d639e5cf61bb1b5cf9d434902b3b0d2dc |
--- /dev/null |
+++ b/chrome/browser/ui/webui/big_icon_source.h |
@@ -0,0 +1,85 @@ |
+// Copyright 2015 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_UI_WEBUI_BIG_ICON_SOURCE_H_ |
+#define CHROME_BROWSER_UI_WEBUI_BIG_ICON_SOURCE_H_ |
+ |
+#include "base/memory/scoped_ptr.h" |
+#include "base/task/cancelable_task_tracker.h" |
+#include "components/favicon_base/fallback_icon_service.h" |
+#include "components/favicon_base/favicon_types.h" |
+#include "content/public/browser/url_data_source.h" |
+ |
+class Profile; |
+ |
+// BigIconSource services explicit chrome:// requests for big icons. |
+// |
+// Format: |
+// chrome://big-icon/size/url |
+// All of the parameters except for the url are optional. However, the order of |
+// |
+// Parameter: |
+// 'size' |
+// Positive integer to specify the big icon's size in pixels. |
+// 'url' |
+// String to specify the page URL of the big icon. |
+// |
+// Example: chrome://big-icon/48/http://www.google.com/ |
+// This requests a 48x48 big icon for http://www.google.com. |
+class BigIconSource : public content::URLDataSource { |
Roger McFarlane (Chromium)
2015/03/16 19:00:59
nit: I prefer "large" over "big" in the nomenclatu
huangs
2015/03/17 01:43:52
Done.
|
+ public: |
+ explicit BigIconSource(Profile* profile); |
+ |
+ ~BigIconSource() override; |
+ |
+ // content::URLDataSource implementation. |
+ std::string GetSource() const override; |
+ void StartDataRequest( |
+ const std::string& path, |
+ int render_process_id, |
+ int render_frame_id, |
+ const content::URLDataSource::GotDataCallback& callback) override; |
+ std::string GetMimeType(const std::string&) const override; |
+ bool ShouldReplaceExistingSource() const override; |
+ bool ShouldServiceRequest(const net::URLRequest* request) const override; |
+ |
+ protected: |
+ struct IconRequest { |
+ IconRequest(); |
+ IconRequest(const content::URLDataSource::GotDataCallback& callback_in, |
+ const GURL& path_in, |
+ int size_in); |
+ ~IconRequest(); |
+ |
+ content::URLDataSource::GotDataCallback callback; |
+ GURL path; |
+ int size; |
+ }; |
+ |
+ private: |
+ bool HandleMissingResource(const IconRequest& request); |
+ |
+ void OnBigIconDataAvailable( |
+ IconRequest request, |
+ const favicon_base::FaviconRawBitmapResult& bitmap_result); |
+ |
+ void SendFallbackIcon( |
+ const GURL& url, |
+ const content::URLDataSource::GotDataCallback& callback); |
+ |
+ void SendDefaultResponse( |
+ const content::URLDataSource::GotDataCallback& callback); |
+ |
+ Profile* profile_; |
+ |
+ base::CancelableTaskTracker cancelable_task_tracker_; |
+ |
+ scoped_ptr<favicon_base::FallbackIconService> fallback_icon_service_; |
+ |
+ bool render_fallback_on_failure_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(BigIconSource); |
+}; |
+ |
+#endif // CHROME_BROWSER_UI_WEBUI_BIG_ICON_SOURCE_H_ |