chrome/renderer/chrome_render_view_observer.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_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_
   6 #define CHROME_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_
   7
   8 #include <set>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/basictypes.h"
  13 #include "base/memory/linked_ptr.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/timer/timer.h"
  16 #include "content/public/common/top_controls_state.h"
  17 #include "content/public/renderer/render_view_observer.h"
  18 #include "ui/gfx/size.h"
  19 #include "url/gurl.h"
  20
  21 class ChromeRenderProcessObserver;
  22 class ContentSettingsObserver;
  23 class SkBitmap;
  24 class TranslateHelper;
  25 class WebViewColorOverlay;
  26 class WebViewAnimatingOverlay;
  27
  28 namespace blink {
  29 class WebView;
  30 struct WebWindowFeatures;
  31 }
  32
  33 namespace safe_browsing {
  34 class PhishingClassifierDelegate;
  35 }
  36
  37 // This class holds the Chrome specific parts of RenderView, and has the same
  38 // lifetime.
  39 class ChromeRenderViewObserver : public content::RenderViewObserver {
  40  public:
  41   // translate_helper can be NULL.
  42   ChromeRenderViewObserver(
  43       content::RenderView* render_view,
  44       ChromeRenderProcessObserver* chrome_render_process_observer);
  45   virtual ~ChromeRenderViewObserver();
  46
  47  private:
  48   // RenderViewObserver implementation.
  49   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  50   virtual void DidStartLoading() OVERRIDE;
  51   virtual void DidStopLoading() OVERRIDE;
  52   virtual void DidCommitProvisionalLoad(blink::WebLocalFrame* frame,
  53                                         bool is_new_navigation) OVERRIDE;
  54   virtual void Navigate(const GURL& url) OVERRIDE;
  55
  56 #if !defined(OS_ANDROID) && !defined(OS_IOS)
  57   void OnWebUIJavaScript(const base::string16& javascript);
  58 #endif
  59 #if defined(ENABLE_EXTENSIONS)
  60   void OnSetVisuallyDeemphasized(bool deemphasized);
  61 #endif
  62 #if defined(OS_ANDROID)
  63   void OnUpdateTopControlsState(content::TopControlsState constraints,
  64                                 content::TopControlsState current,
  65                                 bool animate);
  66   void OnRetrieveWebappInformation(const GURL& expected_url);
  67   void OnRetrieveMetaTagContent(const GURL& expected_url,
  68                                 const std::string tag_name);
  69 #endif
  70   void OnSetClientSidePhishingDetection(bool enable_phishing_detection);
  71   void OnSetWindowFeatures(const blink::WebWindowFeatures& window_features);
  72
  73   void CapturePageInfoLater(bool preliminary_capture,
  74                             base::TimeDelta delay);
  75
  76   // Captures the thumbnail and text contents for indexing for the given load
  77   // ID.  Kicks off analysis of the captured text.
  78   void CapturePageInfo(bool preliminary_capture);
  79
  80   // Retrieves the text from the given frame contents, the page text up to the
  81   // maximum amount kMaxIndexChars will be placed into the given buffer.
  82   void CaptureText(blink::WebFrame* frame, base::string16* contents);
  83
  84   // Determines if a host is in the strict security host set.
  85   bool IsStrictSecurityHost(const std::string& host);
  86
  87   // Checks if a page contains <meta http-equiv="refresh" ...> tag.
  88   bool HasRefreshMetaTag(blink::WebFrame* frame);
  89
  90   // Save the JavaScript to preload if a ViewMsg_WebUIJavaScript is received.
  91   std::vector<base::string16> webui_javascript_;
  92
  93   // Owned by ChromeContentRendererClient and outlive us.
  94   ChromeRenderProcessObserver* chrome_render_process_observer_;
  95
  96   // Have the same lifetime as us.
  97   TranslateHelper* translate_helper_;
  98   safe_browsing::PhishingClassifierDelegate* phishing_classifier_;
  99
 100   // A color page overlay when visually de-emaphasized.
 101   scoped_ptr<WebViewColorOverlay> dimmed_color_overlay_;
 102
 103   // Used to delay calling CapturePageInfo.
 104   base::Timer capture_timer_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(ChromeRenderViewObserver);
 107 };
 108
 109 #endif  // CHROME_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_