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/geometry/size.h"
  19 #include "url/gurl.h"
  20
  21 class ContentSettingsObserver;
  22 class SkBitmap;
  23 class WebViewColorOverlay;
  24 class WebViewAnimatingOverlay;
  25
  26 namespace blink {
  27 class WebView;
  28 struct WebWindowFeatures;
  29 }
  30
  31 namespace safe_browsing {
  32 class PhishingClassifierDelegate;
  33 }
  34
  35 namespace translate {
  36 class TranslateHelper;
  37 }
  38
  39 namespace web_cache {
  40 class WebCacheRenderProcessObserver;
  41 }
  42
  43 // This class holds the Chrome specific parts of RenderView, and has the same
  44 // lifetime.
  45 class ChromeRenderViewObserver : public content::RenderViewObserver {
  46  public:
  47   // translate_helper can be NULL.
  48   ChromeRenderViewObserver(
  49       content::RenderView* render_view,
  50       web_cache::WebCacheRenderProcessObserver*
  51           web_cache_render_process_observer);
  52   ~ChromeRenderViewObserver() override;
  53
  54  private:
  55   // RenderViewObserver implementation.
  56   bool OnMessageReceived(const IPC::Message& message) override;
  57   void DidStartLoading() override;
  58   void DidStopLoading() override;
  59   void DidCommitProvisionalLoad(blink::WebLocalFrame* frame,
  60                                 bool is_new_navigation) override;
  61   void Navigate(const GURL& url) override;
  62
  63 #if !defined(OS_ANDROID) && !defined(OS_IOS)
  64   void OnWebUIJavaScript(const base::string16& javascript);
  65 #endif
  66 #if defined(ENABLE_EXTENSIONS)
  67   void OnSetVisuallyDeemphasized(bool deemphasized);
  68 #endif
  69 #if defined(OS_ANDROID)
  70   void OnUpdateTopControlsState(content::TopControlsState constraints,
  71                                 content::TopControlsState current,
  72                                 bool animate);
  73   void OnRetrieveMetaTagContent(const GURL& expected_url,
  74                                 const std::string tag_name);
  75 #endif
  76   void OnGetWebApplicationInfo();
  77   void OnSetClientSidePhishingDetection(bool enable_phishing_detection);
  78   void OnSetWindowFeatures(const blink::WebWindowFeatures& window_features);
  79
  80   void CapturePageInfoLater(bool preliminary_capture,
  81                             base::TimeDelta delay);
  82
  83   // Captures the thumbnail and text contents for indexing for the given load
  84   // ID.  Kicks off analysis of the captured text.
  85   void CapturePageInfo(bool preliminary_capture);
  86
  87   // Retrieves the text from the given frame contents, the page text up to the
  88   // maximum amount kMaxIndexChars will be placed into the given buffer.
  89   void CaptureText(blink::WebFrame* frame, base::string16* contents);
  90
  91   // Determines if a host is in the strict security host set.
  92   bool IsStrictSecurityHost(const std::string& host);
  93
  94   // Checks if a page contains <meta http-equiv="refresh" ...> tag.
  95   bool HasRefreshMetaTag(blink::WebFrame* frame);
  96
  97   // Save the JavaScript to preload if a ViewMsg_WebUIJavaScript is received.
  98   std::vector<base::string16> webui_javascript_;
  99
 100   // Owned by ChromeContentRendererClient and outlive us.
 101   web_cache::WebCacheRenderProcessObserver* web_cache_render_process_observer_;
 102
 103   // Have the same lifetime as us.
 104   translate::TranslateHelper* translate_helper_;
 105   safe_browsing::PhishingClassifierDelegate* phishing_classifier_;
 106
 107   // A color page overlay when visually de-emaphasized.
 108   scoped_ptr<WebViewColorOverlay> dimmed_color_overlay_;
 109
 110   // Used to delay calling CapturePageInfo.
 111   base::Timer capture_timer_;
 112
 113   DISALLOW_COPY_AND_ASSIGN(ChromeRenderViewObserver);
 114 };
 115
 116 #endif  // CHROME_RENDERER_CHROME_RENDER_VIEW_OBSERVER_H_