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 DetailedConsoleMessageAdded(const base::string16& message,
  55                                            const base::string16& source,
  56                                            const base::string16& stack_trace,
  57                                            int32 line_number,
  58                                            int32 severity_level) OVERRIDE;
  59   virtual void Navigate(const GURL& url) OVERRIDE;
  60
  61   void OnWebUIJavaScript(const base::string16& javascript);
  62   void OnSetClientSidePhishingDetection(bool enable_phishing_detection);
  63   void OnSetVisuallyDeemphasized(bool deemphasized);
  64   void OnGetFPS();
  65 #if defined(OS_ANDROID)
  66   void OnUpdateTopControlsState(content::TopControlsState constraints,
  67                                 content::TopControlsState current,
  68                                 bool animate);
  69   void OnRetrieveWebappInformation(const GURL& expected_url);
  70   void OnRetrieveMetaTagContent(const GURL& expected_url,
  71                                 const std::string tag_name);
  72 #endif
  73   void OnSetWindowFeatures(const blink::WebWindowFeatures& window_features);
  74
  75   void CapturePageInfoLater(int page_id,
  76                             bool preliminary_capture,
  77                             base::TimeDelta delay);
  78
  79   // Captures the thumbnail and text contents for indexing for the given load
  80   // ID.  Kicks off analysis of the captured text.
  81   void CapturePageInfo(int page_id, bool preliminary_capture);
  82
  83   // Retrieves the text from the given frame contents, the page text up to the
  84   // maximum amount kMaxIndexChars will be placed into the given buffer.
  85   void CaptureText(blink::WebFrame* frame, base::string16* contents);
  86
  87   // Determines if a host is in the strict security host set.
  88   bool IsStrictSecurityHost(const std::string& host);
  89
  90   // Checks if a page contains <meta http-equiv="refresh" ...> tag.
  91   bool HasRefreshMetaTag(blink::WebFrame* frame);
  92
  93   // Save the JavaScript to preload if a ViewMsg_WebUIJavaScript is received.
  94   base::string16 webui_javascript_;
  95
  96   // Owned by ChromeContentRendererClient and outlive us.
  97   ChromeRenderProcessObserver* chrome_render_process_observer_;
  98
  99   // Have the same lifetime as us.
 100   TranslateHelper* translate_helper_;
 101   safe_browsing::PhishingClassifierDelegate* phishing_classifier_;
 102
 103   // Page_id from the last page we indexed. This prevents us from indexing the
 104   // same page twice in a row.
 105   int32 last_indexed_page_id_;
 106   // The toplevel URL that was last indexed.  This is used together with the
 107   // page id to decide whether to reindex in certain cases like history
 108   // replacement.
 109   GURL last_indexed_url_;
 110
 111   // A color page overlay when visually de-emaphasized.
 112   scoped_ptr<WebViewColorOverlay> dimmed_color_overlay_;
 113
 114   // Used to delay calling CapturePageInfo.
 115   base::Timer capture_timer_;
 116
 117   DISALLOW_COPY_AND_ASSIGN(ChromeRenderViewObserver);
 118 };
 119
 120 #endif  // CHROME_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_