mandoline: Add find in page.

components/web_view/web_view_impl.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_WEB_VIEW_WEB_VIEW_IMPL_H_
 #define COMPONENTS_WEB_VIEW_WEB_VIEW_IMPL_H_
 
+#include <deque>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/mus/public/cpp/view_observer.h"
 #include "components/mus/public/cpp/view_tree_delegate.h"
 #include "components/web_view/frame_devtools_agent_delegate.h"
 #include "components/web_view/frame_tree_delegate.h"
 #include "components/web_view/navigation_controller.h"
 #include "components/web_view/navigation_controller_delegate.h"
@@ skipping 24 matching lines @@
                     public NavigationControllerDelegate {
  public:
   WebViewImpl(mojo::ApplicationImpl* app,
               mojom::WebViewClientPtr client,
               mojo::InterfaceRequest<WebView> request);
   ~WebViewImpl() override;
 
  private:
   friend class PendingWebViewLoad;
 
+  struct MatchData {
+    int count;
+    bool final_update;
+  };
+
   // See description above |pending_load_| for details.
   void OnLoad(const GURL& pending_url);
 
+  std::deque<Frame*> GetAllFrames();
+
+  // Callback method invoked by Find().
+  void OnContinueFinding(int32_t request_id, const mojo::String& search_text,
+                         bool found);
+
   // Overridden from WebView:
   void LoadRequest(mojo::URLRequestPtr request) override;
   void GetViewTreeClient(
       mojo::InterfaceRequest<mojo::ViewTreeClient> view_tree_client)
           override;
+  void Find(int32_t request_id, const mojo::String& search_text) override;
+  void StopFinding() override;
   void GoBack() override;
   void GoForward() override;
 
   // Overridden from mus::ViewTreeDelegate:
   void OnEmbed(mus::View* root) override;
   void OnConnectionLost(mus::ViewTreeConnection* connection) override;
 
   // Overridden from mus::ViewObserver:
   void OnViewBoundsChanged(mus::View* view,
                            const mojo::Rect& old_bounds,
                            const mojo::Rect& new_bounds) override;
   void OnViewDestroyed(mus::View* view) override;
 
   // Overridden from FrameTreeDelegate:
   scoped_ptr<FrameUserData> CreateUserDataForNewFrame(
       mojom::FrameClientPtr frame_client) override;
   bool CanPostMessageEventToFrame(const Frame* source,
                                   const Frame* target,
                                   mojom::HTMLMessageEvent* event) override;
   void LoadingStateChanged(bool loading, double progress) override;
   void TitleChanged(const mojo::String& title) override;
   void NavigateTopLevel(Frame* source, mojo::URLRequestPtr request) override;
   void CanNavigateFrame(Frame* target,
                         mojo::URLRequestPtr request,
                         const CanNavigateFrameCallback& callback) override;
   void DidStartNavigation(Frame* frame) override;
   void DidCommitProvisionalLoad(Frame* frame) override;
+  void DidDestroyFrame(Frame* frame) override;
+  void OnReportFindInFrameMatchCount(int32_t request_id,
+                                     Frame* frame,
+                                     int32_t count,
+                                     bool final_update) override;
+  void OnReportFindInPageSelection(int32_t request_id,
+                                   Frame* frame,
+                                   int32_t active_match_ordinal) override;
 
   // Overridden from FrameDevToolsAgent::Delegate:
   void HandlePageNavigateRequest(const GURL& url) override;
 
   // Overridden from NavigationControllerDelegate:
   void OnNavigate(mojo::URLRequestPtr request) override;
   void OnDidNavigate() override;
 
   mojo::ApplicationImpl* app_;
   mojom::WebViewClientPtr client_;
   mojo::StrongBinding<WebView> binding_;
   mus::View* root_;
   mus::View* content_;
   scoped_ptr<FrameTree> frame_tree_;
 
   // When LoadRequest() is called a PendingWebViewLoad is created to wait for
   // state needed to process the request. When the state is obtained OnLoad()
   // is invoked.
   scoped_ptr<PendingWebViewLoad> pending_load_;
 
   scoped_ptr<FrameDevToolsAgent> devtools_agent_;
 
   NavigationController navigation_controller_;
 
+  // A list of Frames which we have not sent a Find() command to. Initialized
+  // in Find(), and read from OnContinueFinding().
+  std::deque<Frame*> pending_find_frames_;

[sky, 2015/10/02 16:03:40]

Can the find related code be moved into it's own class that WebView owns?

+
+  // Current find
+  int current_find_request_;
+
+  // The current callback data from various frames.
+  std::map<Frame*, MatchData> returned_find_data_;
+
   DISALLOW_COPY_AND_ASSIGN(WebViewImpl);
 };
 
 }  // namespace web_view
 
 #endif  // COMPONENTS_WEB_VIEW_WEB_VIEW_IMPL_H_