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      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 #include "content/browser/web_contents/web_contents_view_guest.h"
      6 
      7 #include "build/build_config.h"
      8 #include "content/browser/browser_plugin/browser_plugin_embedder.h"
      9 #include "content/browser/browser_plugin/browser_plugin_guest.h"
     10 #include "content/browser/renderer_host/render_view_host_factory.h"
     11 #include "content/browser/renderer_host/render_view_host_impl.h"
     12 #include "content/browser/renderer_host/render_widget_host_view_guest.h"
     13 #include "content/browser/web_contents/interstitial_page_impl.h"
     14 #include "content/browser/web_contents/web_contents_impl.h"
     15 #include "content/common/drag_messages.h"
     16 #include "content/public/browser/web_contents_delegate.h"
     17 #include "content/public/common/context_menu_params.h"
     18 #include "content/public/common/drop_data.h"
     19 #include "ui/gfx/image/image_skia.h"
     20 #include "ui/gfx/point.h"
     21 #include "ui/gfx/rect.h"
     22 #include "ui/gfx/size.h"
     23 
     24 #if defined(USE_AURA)
     25 #include "ui/aura/window.h"
     26 #endif
     27 
     28 using WebKit::WebDragOperation;
     29 using WebKit::WebDragOperationsMask;
     30 
     31 namespace content {
     32 
     33 WebContentsViewGuest::WebContentsViewGuest(
     34     WebContentsImpl* web_contents,
     35     BrowserPluginGuest* guest,
     36     scoped_ptr<WebContentsViewPort> platform_view,
     37     RenderViewHostDelegateView* platform_view_delegate_view)
     38     : web_contents_(web_contents),
     39       guest_(guest),
     40       platform_view_(platform_view.Pass()),
     41       platform_view_delegate_view_(platform_view_delegate_view) {
     42 }
     43 
     44 WebContentsViewGuest::~WebContentsViewGuest() {
     45 }
     46 
     47 gfx::NativeView WebContentsViewGuest::GetNativeView() const {
     48   return platform_view_->GetNativeView();
     49 }
     50 
     51 gfx::NativeView WebContentsViewGuest::GetContentNativeView() const {
     52   RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView();
     53   if (!rwhv)
     54     return NULL;
     55   return rwhv->GetNativeView();
     56 }
     57 
     58 gfx::NativeWindow WebContentsViewGuest::GetTopLevelNativeWindow() const {
     59   return guest_->embedder_web_contents()->GetView()->GetTopLevelNativeWindow();
     60 }
     61 
     62 void WebContentsViewGuest::OnGuestInitialized(WebContentsView* parent_view) {
     63 #if defined(USE_AURA) || defined(OS_WIN)
     64   // In aura and windows, ScreenPositionClient doesn't work properly if we do
     65   // not have the native view associated with this WebContentsViewGuest in the
     66   // view hierarchy. We add this view as embedder's child here.
     67   // This would go in WebContentsViewGuest::CreateView, but that is too early to
     68   // access embedder_web_contents(). Therefore, we do it here.
     69 #if defined(USE_AURA)
     70   // This can be win aura or chromeos.
     71   parent_view->GetNativeView()->AddChild(platform_view_->GetNativeView());
     72 #elif defined(OS_WIN)
     73   SetParent(platform_view_->GetNativeView(), parent_view->GetNativeView());
     74 #endif
     75 #endif  // defined(USE_AURA) || defined(OS_WIN)
     76 }
     77 
     78 void WebContentsViewGuest::GetContainerBounds(gfx::Rect* out) const {
     79   // We need embedder container's bounds to calculate our bounds.
     80   guest_->embedder_web_contents()->GetView()->GetContainerBounds(out);
     81   gfx::Point guest_coordinates = guest_->GetScreenCoordinates(gfx::Point());
     82   out->Offset(guest_coordinates.x(), guest_coordinates.y());
     83   out->set_size(size_);
     84 }
     85 
     86 void WebContentsViewGuest::SizeContents(const gfx::Size& size) {
     87   size_ = size;
     88   RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView();
     89   if (rwhv)
     90     rwhv->SetSize(size);
     91 }
     92 
     93 void WebContentsViewGuest::SetInitialFocus() {
     94   platform_view_->SetInitialFocus();
     95 }
     96 
     97 gfx::Rect WebContentsViewGuest::GetViewBounds() const {
     98   return gfx::Rect(size_);
     99 }
    100 
    101 #if defined(OS_MACOSX)
    102 void WebContentsViewGuest::SetAllowOverlappingViews(bool overlapping) {
    103   platform_view_->SetAllowOverlappingViews(overlapping);
    104 }
    105 
    106 bool WebContentsViewGuest::GetAllowOverlappingViews() const {
    107   return platform_view_->GetAllowOverlappingViews();
    108 }
    109 #endif
    110 
    111 void WebContentsViewGuest::CreateView(const gfx::Size& initial_size,
    112                                       gfx::NativeView context) {
    113   platform_view_->CreateView(initial_size, context);
    114   size_ = initial_size;
    115 }
    116 
    117 RenderWidgetHostView* WebContentsViewGuest::CreateViewForWidget(
    118     RenderWidgetHost* render_widget_host) {
    119   if (render_widget_host->GetView()) {
    120     // During testing, the view will already be set up in most cases to the
    121     // test view, so we don't want to clobber it with a real one. To verify that
    122     // this actually is happening (and somebody isn't accidentally creating the
    123     // view twice), we check for the RVH Factory, which will be set when we're
    124     // making special ones (which go along with the special views).
    125     DCHECK(RenderViewHostFactory::has_factory());
    126     return render_widget_host->GetView();
    127   }
    128 
    129   RenderWidgetHostView* platform_widget = NULL;
    130   platform_widget = platform_view_->CreateViewForWidget(render_widget_host);
    131 
    132   RenderWidgetHostView* view = new RenderWidgetHostViewGuest(
    133       render_widget_host,
    134       guest_,
    135       platform_widget);
    136 
    137   return view;
    138 }
    139 
    140 RenderWidgetHostView* WebContentsViewGuest::CreateViewForPopupWidget(
    141     RenderWidgetHost* render_widget_host) {
    142   return RenderWidgetHostViewPort::CreateViewForWidget(render_widget_host);
    143 }
    144 
    145 void WebContentsViewGuest::SetPageTitle(const string16& title) {
    146 }
    147 
    148 void WebContentsViewGuest::RenderViewCreated(RenderViewHost* host) {
    149   platform_view_->RenderViewCreated(host);
    150 }
    151 
    152 void WebContentsViewGuest::RenderViewSwappedIn(RenderViewHost* host) {
    153   platform_view_->RenderViewSwappedIn(host);
    154 }
    155 
    156 void WebContentsViewGuest::SetOverscrollControllerEnabled(bool enabled) {
    157   // This should never override the setting of the embedder view.
    158 }
    159 
    160 #if defined(OS_MACOSX)
    161 bool WebContentsViewGuest::IsEventTracking() const {
    162   return false;
    163 }
    164 
    165 void WebContentsViewGuest::CloseTabAfterEventTracking() {
    166 }
    167 #endif
    168 
    169 WebContents* WebContentsViewGuest::web_contents() {
    170   return web_contents_;
    171 }
    172 
    173 void WebContentsViewGuest::RestoreFocus() {
    174   platform_view_->RestoreFocus();
    175 }
    176 
    177 void WebContentsViewGuest::OnTabCrashed(base::TerminationStatus status,
    178                                         int error_code) {
    179 }
    180 
    181 void WebContentsViewGuest::Focus() {
    182   platform_view_->Focus();
    183 }
    184 
    185 void WebContentsViewGuest::StoreFocus() {
    186   platform_view_->StoreFocus();
    187 }
    188 
    189 DropData* WebContentsViewGuest::GetDropData() const {
    190   NOTIMPLEMENTED();
    191   return NULL;
    192 }
    193 
    194 void WebContentsViewGuest::UpdateDragCursor(WebDragOperation operation) {
    195   RenderViewHostImpl* embedder_render_view_host =
    196       static_cast<RenderViewHostImpl*>(
    197           guest_->embedder_web_contents()->GetRenderViewHost());
    198   CHECK(embedder_render_view_host);
    199   RenderViewHostDelegateView* view =
    200       embedder_render_view_host->GetDelegate()->GetDelegateView();
    201   if (view)
    202     view->UpdateDragCursor(operation);
    203 }
    204 
    205 void WebContentsViewGuest::GotFocus() {
    206 }
    207 
    208 void WebContentsViewGuest::TakeFocus(bool reverse) {
    209 }
    210 
    211 void WebContentsViewGuest::ShowContextMenu(const ContextMenuParams& params) {
    212 #if defined(USE_AURA) || defined(OS_WIN)
    213   // Context menu uses ScreenPositionClient::ConvertPointToScreen() in aura and
    214   // windows to calculate popup position. Guest's native view
    215   // (platform_view_->GetNativeView()) is part of the embedder's view hierarchy,
    216   // but is placed at (0, 0) w.r.t. the embedder's position. Therefore, |offset|
    217   // is added to |params|.
    218   gfx::Rect embedder_bounds;
    219   guest_->embedder_web_contents()->GetView()->GetContainerBounds(
    220       &embedder_bounds);
    221   gfx::Rect guest_bounds;
    222   GetContainerBounds(&guest_bounds);
    223 
    224   gfx::Vector2d offset = guest_bounds.origin() - embedder_bounds.origin();
    225   ContextMenuParams params_in_embedder = params;
    226   params_in_embedder.x += offset.x();
    227   params_in_embedder.y += offset.y();
    228   platform_view_delegate_view_->ShowContextMenu(params_in_embedder);
    229 #else
    230   platform_view_delegate_view_->ShowContextMenu(params);
    231 #endif  // defined(USE_AURA) || defined(OS_WIN)
    232 }
    233 
    234 void WebContentsViewGuest::ShowPopupMenu(const gfx::Rect& bounds,
    235                                          int item_height,
    236                                          double item_font_size,
    237                                          int selected_item,
    238                                          const std::vector<MenuItem>& items,
    239                                          bool right_aligned,
    240                                          bool allow_multiple_selection) {
    241   // External popup menus are only used on Mac and Android.
    242   NOTIMPLEMENTED();
    243 }
    244 
    245 void WebContentsViewGuest::StartDragging(
    246     const DropData& drop_data,
    247     WebDragOperationsMask ops,
    248     const gfx::ImageSkia& image,
    249     const gfx::Vector2d& image_offset,
    250     const DragEventSourceInfo& event_info) {
    251   WebContentsImpl* embedder_web_contents = guest_->embedder_web_contents();
    252   embedder_web_contents->GetBrowserPluginEmbedder()->StartDrag(guest_);
    253   RenderViewHostImpl* embedder_render_view_host =
    254       static_cast<RenderViewHostImpl*>(
    255           embedder_web_contents->GetRenderViewHost());
    256   CHECK(embedder_render_view_host);
    257   RenderViewHostDelegateView* view =
    258       embedder_render_view_host->GetDelegate()->GetDelegateView();
    259   if (view)
    260     view->StartDragging(drop_data, ops, image, image_offset, event_info);
    261   else
    262     embedder_web_contents->SystemDragEnded();
    263 }
    264 
    265 }  // namespace content
    266