components/web_view/web_view_impl.h

   1 // Copyright 2015 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 COMPONENTS_WEB_VIEW_WEB_VIEW_IMPL_H_
   6 #define COMPONENTS_WEB_VIEW_WEB_VIEW_IMPL_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "components/mus/public/cpp/view_observer.h"
  11 #include "components/mus/public/cpp/view_tree_delegate.h"
  12 #include "components/web_view/frame_devtools_agent_delegate.h"
  13 #include "components/web_view/frame_tree_delegate.h"
  14 #include "components/web_view/navigation_controller.h"
  15 #include "components/web_view/navigation_controller_delegate.h"
  16 #include "components/web_view/public/interfaces/web_view.mojom.h"
  17 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
  18
  19 namespace mojo {
  20 class ApplicationImpl;
  21 }
  22
  23 namespace web_view {
  24
  25 class Frame;
  26 class FrameDevToolsAgent;
  27 class FrameTree;
  28 class PendingWebViewLoad;
  29 class URLRequestCloneable;
  30
  31 namespace mojom {
  32 class HTMLMessageEvent;
  33 }
  34
  35 class WebViewImpl : public mojom::WebView,
  36                     public mus::ViewTreeDelegate,
  37                     public mus::ViewObserver,
  38                     public FrameTreeDelegate,
  39                     public FrameDevToolsAgentDelegate,
  40                     public NavigationControllerDelegate {
  41  public:
  42   WebViewImpl(mojo::ApplicationImpl* app,
  43               mojom::WebViewClientPtr client,
  44               mojo::InterfaceRequest<WebView> request);
  45   ~WebViewImpl() override;
  46
  47  private:
  48   friend class PendingWebViewLoad;
  49
  50   // See description above |pending_load_| for details.
  51   void OnLoad();
  52
  53   // Overridden from WebView:
  54   void LoadRequest(mojo::URLRequestPtr request) override;
  55   void GetViewTreeClient(
  56       mojo::InterfaceRequest<mojo::ViewTreeClient> view_tree_client)
  57           override;
  58   void GoBack() override;
  59   void GoForward() override;
  60
  61   // Overridden from mus::ViewTreeDelegate:
  62   void OnEmbed(mus::View* root) override;
  63   void OnConnectionLost(mus::ViewTreeConnection* connection) override;
  64
  65   // Overridden from mus::ViewObserver:
  66   void OnViewBoundsChanged(mus::View* view,
  67                            const mojo::Rect& old_bounds,
  68                            const mojo::Rect& new_bounds) override;
  69   void OnViewDestroyed(mus::View* view) override;
  70
  71   // Overridden from FrameTreeDelegate:
  72   scoped_ptr<FrameUserData> CreateUserDataForNewFrame(
  73       mojom::FrameClientPtr frame_client) override;
  74   bool CanPostMessageEventToFrame(const Frame* source,
  75                                   const Frame* target,
  76                                   mojom::HTMLMessageEvent* event) override;
  77   void LoadingStateChanged(bool loading, double progress) override;
  78   void TitleChanged(const mojo::String& title) override;
  79   void NavigateTopLevel(Frame* source, mojo::URLRequestPtr request) override;
  80   void CanNavigateFrame(Frame* target,
  81                         mojo::URLRequestPtr request,
  82                         const CanNavigateFrameCallback& callback) override;
  83   void DidStartNavigation(Frame* frame) override;
  84   void DidCommitProvisionalLoad(Frame* frame) override;
  85
  86   // Overridden from FrameDevToolsAgent::Delegate:
  87   void HandlePageNavigateRequest(const GURL& url) override;
  88
  89   // Overridden from NavigationControllerDelegate:
  90   void OnNavigate(mojo::URLRequestPtr request) override;
  91   void OnDidNavigate() override;
  92
  93   mojo::ApplicationImpl* app_;
  94   mojom::WebViewClientPtr client_;
  95   mojo::StrongBinding<WebView> binding_;
  96   mus::View* root_;
  97   mus::View* content_;
  98   scoped_ptr<FrameTree> frame_tree_;
  99
 100   // When LoadRequest() is called a PendingWebViewLoad is created to wait for
 101   // state needed to process the request. When the state is obtained OnLoad()
 102   // is invoked.
 103   scoped_ptr<PendingWebViewLoad> pending_load_;
 104
 105   scoped_ptr<FrameDevToolsAgent> devtools_agent_;
 106
 107   NavigationController navigation_controller_;
 108
 109   DISALLOW_COPY_AND_ASSIGN(WebViewImpl);
 110 };
 111
 112 }  // namespace web_view
 113
 114 #endif  // COMPONENTS_WEB_VIEW_WEB_VIEW_IMPL_H_