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