chrome/browser/ui/webui/theme_source.h

   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 #ifndef CHROME_BROWSER_UI_WEBUI_THEME_SOURCE_H_
   6 #define CHROME_BROWSER_UI_WEBUI_THEME_SOURCE_H_
   7
   8 #include <string>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "content/public/browser/url_data_source.h"
  13 #include "ui/base/layout.h"
  14
  15 class Profile;
  16
  17 namespace base {
  18 class RefCountedMemory;
  19 }
  20
  21 class ThemeSource : public content::URLDataSource {
  22  public:
  23   explicit ThemeSource(Profile* profile);
  24   virtual ~ThemeSource();
  25
  26   // content::URLDataSource implementation.
  27   virtual std::string GetSource() const OVERRIDE;
  28   virtual void StartDataRequest(
  29       const std::string& path,
  30       int render_process_id,
  31       int render_frame_id,
  32       const content::URLDataSource::GotDataCallback& callback) OVERRIDE;
  33   virtual std::string GetMimeType(const std::string& path) const OVERRIDE;
  34   virtual base::MessageLoop* MessageLoopForRequestPath(
  35       const std::string& path) const OVERRIDE;
  36   virtual bool ShouldReplaceExistingSource() const OVERRIDE;
  37   virtual bool ShouldServiceRequest(
  38       const net::URLRequest* request) const OVERRIDE;
  39
  40  private:
  41   // Fetch and send the theme bitmap.
  42   void SendThemeBitmap(
  43       const content::URLDataSource::GotDataCallback& callback,
  44       int resource_id,
  45       ui::ScaleFactor scale_factor);
  46
  47   // The original profile (never an OTR profile).
  48   Profile* profile_;
  49
  50   // We grab the CSS early so we don't have to go back to the UI thread later.
  51   scoped_refptr<base::RefCountedMemory> css_bytes_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(ThemeSource);
  54 };
  55
  56 #endif  // CHROME_BROWSER_UI_WEBUI_THEME_SOURCE_H_