Adds a TabContentsViewAura.

content/browser/tab_contents/tab_contents_view_aura.cc

 // Copyright (c) 2012 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.
 
-// This is just a placeholder - TabContentsViewAura is not yet implemented
-// (instead chrome has it's own TabContentsViewViews that is used for Aura).
-
-// We need to make sure the compiler sees this interface declaration somewhere
-// so that it can emit exported versions of the inline ctor/dtor functions,
-// otherwise chrome.dll will get a linker error on Windows Aura builds.
+#include "content/browser/tab_contents/tab_contents_view_aura.h"
+
+#include "base/utf_string_conversions.h"
+#include "content/browser/renderer_host/render_view_host_factory.h"
+#include "content/browser/tab_contents/interstitial_page_impl.h"
+#include "content/browser/tab_contents/tab_contents.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/render_widget_host.h"
+#include "content/public/browser/render_widget_host_view.h"
+#include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_view_delegate.h"
+#include "content/public/browser/web_drag_dest_delegate.h"
+#include "ui/aura/client/drag_drop_client.h"
+#include "ui/aura/client/drag_drop_delegate.h"
+#include "ui/aura/event.h"
+#include "ui/aura/root_window.h"
+#include "ui/aura/window.h"
+#include "ui/base/clipboard/custom_data_helper.h"
+#include "ui/base/dragdrop/drag_drop_types.h"
+#include "ui/base/dragdrop/os_exchange_data.h"
+#include "ui/base/dragdrop/os_exchange_data_provider_aura.h"
+#include "ui/base/hit_test.h"
+#include "ui/gfx/compositor/layer.h"
+#include "ui/gfx/screen.h"
+#include "webkit/glue/webdropdata.h"
+
+namespace {
+
+// Listens to all mouse drag events during a drag and drop and sends them to
+// the renderer.
+class WebDragSourceAura : public MessageLoopForUI::Observer {
+ public:
+  explicit WebDragSourceAura(TabContents* contents)
+      : contents_(contents) {
+    MessageLoopForUI::current()->AddObserver(this);
+  }
+
+  virtual ~WebDragSourceAura() {
+    MessageLoopForUI::current()->RemoveObserver(this);
+  }
+
+  // MessageLoop::Observer implementation:
+  virtual base::EventStatus WillProcessEvent(
+      const base::NativeEvent& event) OVERRIDE {
+    return base::EVENT_CONTINUE;
+  }
+  virtual void DidProcessEvent(const base::NativeEvent& event) OVERRIDE {
+    ui::EventType type = ui::EventTypeFromNative(event);
+    content::RenderViewHost* rvh = NULL;
+    switch (type) {
+      case ui::ET_MOUSE_DRAGGED:
+        rvh = contents_->GetRenderViewHost();
+        if (rvh) {
+          gfx::Point screen_loc = ui::EventLocationFromNative(event);
+          gfx::Point client_loc = screen_loc;
+          aura::Window* window = rvh->GetView()->GetNativeView();
+          aura::Window::ConvertPointToWindow(window->GetRootWindow(),
+              window, &client_loc);
+          rvh->DragSourceMovedTo(client_loc.x(), client_loc.y(),
+              screen_loc.x(), screen_loc.y());
+        }
+        break;
+      default:
+        break;
+    }
+  }
+
+
+ private:
+  TabContents* contents_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebDragSourceAura);
+};
+
+// Utility to fill a ui::OSExchangeDataProviderAura object from WebDropData.
+void PrepareDragData(const WebDropData& drop_data,
+                     ui::OSExchangeDataProviderAura* provider) {
+  if (!drop_data.plain_text.empty())
+    provider->SetString(drop_data.plain_text);
+  if (drop_data.url.is_valid())
+    provider->SetURL(drop_data.url, drop_data.url_title);
+  if (!drop_data.text_html.empty())
+    provider->SetHtml(drop_data.text_html, drop_data.html_base_url);
+  if (!drop_data.filenames.empty()) {
+    std::vector<FilePath> paths;
+    for (std::vector<string16>::const_iterator it = drop_data.filenames.begin();
+        it != drop_data.filenames.end(); ++it)
+      paths.push_back(FilePath::FromUTF8Unsafe(UTF16ToUTF8(*it)));
+    provider->SetFilenames(paths);
+  }
+  if (!drop_data.custom_data.empty()) {
+    Pickle pickle;
+    ui::WriteCustomDataToPickle(drop_data.custom_data, &pickle);
+    provider->SetPickledData(ui::Clipboard::GetWebCustomDataFormatType(),
+                             pickle);
+  }
+}
+
+// Utility to fill a WebDropData object from ui::OSExchangeData.
+void PrepareWebDropData(WebDropData* drop_data,
+                        const ui::OSExchangeData& data) {
+  string16 plain_text, url_title;
+  GURL url;
+
+  data.GetString(&plain_text);
+  if (!plain_text.empty())
+    drop_data->plain_text = plain_text;
+
+  data.GetURLAndTitle(&url, &url_title);
+  if (url.is_valid()) {
+    drop_data->url = url;
+    drop_data->url_title = url_title;
+  }
+
+  data.GetHtml(&drop_data->text_html, &drop_data->html_base_url);
+
+  std::vector<FilePath> files;
+  if (data.GetFilenames(&files) && !files.empty()) {
+    for (std::vector<FilePath>::const_iterator it = files.begin();
+        it != files.end(); ++it)
+      drop_data->filenames.push_back(UTF8ToUTF16(it->AsUTF8Unsafe()));
+  }
+
+  Pickle pickle;
+  if (data.GetPickledData(ui::Clipboard::GetWebCustomDataFormatType(),
+                          &pickle))
+    ui::ReadCustomDataIntoMap(pickle.data(), pickle.size(),
+                              &drop_data->custom_data);
+}
+
+// Utilities to convert between WebKit::WebDragOperationsMask and
+// ui::DragDropTypes.
+int ConvertFromWeb(WebKit::WebDragOperationsMask ops) {
+  int drag_op = ui::DragDropTypes::DRAG_NONE;
+  if (ops & WebKit::WebDragOperationCopy)
+    drag_op |= ui::DragDropTypes::DRAG_COPY;
+  if (ops & WebKit::WebDragOperationMove)
+    drag_op |= ui::DragDropTypes::DRAG_MOVE;
+  if (ops & WebKit::WebDragOperationLink)
+    drag_op |= ui::DragDropTypes::DRAG_LINK;
+  return drag_op;
+}
+
+WebKit::WebDragOperationsMask ConvertToWeb(int drag_op) {
+  int web_drag_op = WebKit::WebDragOperationNone;
+  if (drag_op & ui::DragDropTypes::DRAG_COPY)
+    web_drag_op |= WebKit::WebDragOperationCopy;
+  if (drag_op & ui::DragDropTypes::DRAG_MOVE)
+    web_drag_op |= WebKit::WebDragOperationMove;
+  if (drag_op & ui::DragDropTypes::DRAG_LINK)
+    web_drag_op |= WebKit::WebDragOperationLink;
+  return (WebKit::WebDragOperationsMask) web_drag_op;
+}
+
+}  // namespace
+
+
+////////////////////////////////////////////////////////////////////////////////
+// TabContentsViewAura, public:
+
+TabContentsViewAura::TabContentsViewAura(
+    TabContents* tab_contents,
+    content::WebContentsViewDelegate* delegate)
+    : tab_contents_(tab_contents),
+      view_(NULL),
+      delegate_(delegate),
+      current_drag_op_(WebKit::WebDragOperationNone),
+      close_tab_after_drag_ends_(false) {
+}
+
+TabContentsViewAura::~TabContentsViewAura() {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TabContentsViewAura, private:
+
+void TabContentsViewAura::SizeChangedCommon(const gfx::Size& size) {
+  if (tab_contents_->GetInterstitialPage())
+    tab_contents_->GetInterstitialPage()->SetSize(size);
+  content::RenderWidgetHostView* rwhv =
+      tab_contents_->GetRenderWidgetHostView();
+  if (rwhv)
+    rwhv->SetSize(size);
+}
+
+void TabContentsViewAura::EndDrag(WebKit::WebDragOperationsMask ops) {
+  aura::RootWindow* root_window = GetNativeView()->GetRootWindow();
+  gfx::Point screen_loc = root_window->last_mouse_location();
+  gfx::Point client_loc = screen_loc;
+  content::RenderViewHost* rvh = tab_contents_->GetRenderViewHost();
+  aura::Window* window = rvh->GetView()->GetNativeView();
+  aura::Window::ConvertPointToWindow(root_window, window, &client_loc);
+  rvh->DragSourceEndedAt(client_loc.x(), client_loc.y(), screen_loc.x(),
+      screen_loc.y(), ops);
+}
+
+content::WebDragDestDelegate* TabContentsViewAura::GetDragDestDelegate() {
+  return delegate_.get() ? delegate_->GetDragDestDelegate() : NULL;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TabContentsViewAura, WebContentsView implementation:
+
+void TabContentsViewAura::CreateView(const gfx::Size& initial_size) {
+  initial_size_ = initial_size;
+
+  window_.reset(new aura::Window(this));
+  window_->SetType(aura::client::WINDOW_TYPE_CONTROL);
+  window_->SetTransparent(false);
+  window_->Init(ui::LAYER_TEXTURED);
+  window_->layer()->SetMasksToBounds(true);
+  window_->SetName("TabContentsViewAura");
+
+  // TODO(beng): allow for delegate init step.
+
+  // TODO(beng): drag & drop init.
+}
+
+content::RenderWidgetHostView* TabContentsViewAura::CreateViewForWidget(
+    content::RenderWidgetHost* render_widget_host) {
+  if (render_widget_host->GetView()) {
+    // During testing, the view will already be set up in most cases to the
+    // test view, so we don't want to clobber it with a real one. To verify that
+    // this actually is happening (and somebody isn't accidentally creating the
+    // view twice), we check for the RVH Factory, which will be set when we're
+    // making special ones (which go along with the special views).
+    DCHECK(RenderViewHostFactory::has_factory());
+    return render_widget_host->GetView();
+  }
+
+  view_ = content::RenderWidgetHostView::CreateViewForWidget(
+      render_widget_host);
+  view_->InitAsChild(NULL);
+  GetNativeView()->AddChild(view_->GetNativeView());
+  view_->Show();
+
+  // We listen to drag drop events in the newly created view's window.
+  aura::client::SetDragDropDelegate(view_->GetNativeView(), this);
+  return view_;
+}
+
+gfx::NativeView TabContentsViewAura::GetNativeView() const {
+  return window_.get();
+}
+
+gfx::NativeView TabContentsViewAura::GetContentNativeView() const {
+  return view_->GetNativeView();
+}
+
+gfx::NativeWindow TabContentsViewAura::GetTopLevelNativeWindow() const {
+  return window_->GetToplevelWindow();
+}
+
+void TabContentsViewAura::GetContainerBounds(gfx::Rect *out) const {
+  *out = window_->GetScreenBounds();
+}
+
+void TabContentsViewAura::SetPageTitle(const string16& title) {
+  window_->set_title(title);
+}
+
+void TabContentsViewAura::OnTabCrashed(base::TerminationStatus status,
+                                       int error_code) {
+  view_ = NULL;
+}
+
+void TabContentsViewAura::SizeContents(const gfx::Size& size) {
+  gfx::Rect bounds = window_->bounds();
+  if (bounds.size() != size) {
+    bounds.set_size(size);
+    window_->SetBounds(bounds);
+  } else {
+    // Our size matches what we want but the renderers size may not match.
+    // Pretend we were resized so that the renderers size is updated too.
+    SizeChangedCommon(size);
+
+  }
+}
+
+void TabContentsViewAura::RenderViewCreated(content::RenderViewHost* host) {
+}
+
+void TabContentsViewAura::Focus() {
+  if (tab_contents_->GetInterstitialPage()) {
+    tab_contents_->GetInterstitialPage()->Focus();
+    return;
+  }
+
+  if (delegate_.get() && delegate_->Focus())
+    return;
+
+  content::RenderWidgetHostView* rwhv =
+      tab_contents_->GetRenderWidgetHostView();
+  if (rwhv)
+    rwhv->Focus();
+}
+
+void TabContentsViewAura::SetInitialFocus() {
+  if (tab_contents_->FocusLocationBarByDefault())
+    tab_contents_->SetFocusToLocationBar(false);
+  else
+    Focus();
+}
+
+void TabContentsViewAura::StoreFocus() {
+  if (delegate_.get())
+    delegate_->StoreFocus();
+}
+
+void TabContentsViewAura::RestoreFocus() {
+  if (delegate_.get())
+    delegate_->RestoreFocus();
+}
+
+bool TabContentsViewAura::IsDoingDrag() const {
+  aura::RootWindow* root_window = GetNativeView()->GetRootWindow();
+  if (aura::client::GetDragDropClient(root_window))
+    return aura::client::GetDragDropClient(root_window)->IsDragDropInProgress();
+  return false;
+}
+
+void TabContentsViewAura::CancelDragAndCloseTab() {
+  DCHECK(IsDoingDrag());
+  // We can't close the tab while we're in the drag and
+  // |drag_handler_->CancelDrag()| is async.  Instead, set a flag to cancel
+  // the drag and when the drag nested message loop ends, close the tab.
+  aura::RootWindow* root_window = GetNativeView()->GetRootWindow();
+  if (aura::client::GetDragDropClient(root_window))
+    aura::client::GetDragDropClient(root_window)->DragCancel();
+
+  close_tab_after_drag_ends_ = true;
+}
+
+bool TabContentsViewAura::IsEventTracking() const {
+  return false;
+}
+
+void TabContentsViewAura::CloseTabAfterEventTracking() {
+}
+
+void TabContentsViewAura::GetViewBounds(gfx::Rect* out) const {
+  *out = window_->GetScreenBounds();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TabContentsViewAura, RenderViewHostDelegate::View implementation:
+
+void TabContentsViewAura::CreateNewWindow(
+    int route_id,
+    const ViewHostMsg_CreateWindow_Params& params) {
+  tab_contents_view_helper_.CreateNewWindow(tab_contents_, route_id, params);
+}
+
+void TabContentsViewAura::CreateNewWidget(int route_id,
+                                          WebKit::WebPopupType popup_type) {
+  tab_contents_view_helper_.CreateNewWidget(tab_contents_,
+                                            route_id,
+                                            false,
+                                            popup_type);
+}
+
+void TabContentsViewAura::CreateNewFullscreenWidget(int route_id) {
+  tab_contents_view_helper_.CreateNewWidget(tab_contents_,
+                                            route_id,
+                                            true,
+                                            WebKit::WebPopupTypeNone);
+}
+
+void TabContentsViewAura::ShowCreatedWindow(int route_id,
+                                            WindowOpenDisposition disposition,
+                                            const gfx::Rect& initial_pos,
+                                            bool user_gesture) {
+  tab_contents_view_helper_.ShowCreatedWindow(
+      tab_contents_, route_id, disposition, initial_pos, user_gesture);
+}
+
+void TabContentsViewAura::ShowCreatedWidget(int route_id,
+                                            const gfx::Rect& initial_pos) {
+  tab_contents_view_helper_.ShowCreatedWidget(tab_contents_,
+                                              route_id,
+                                              false,
+                                              initial_pos);
+}
+
+void TabContentsViewAura::ShowCreatedFullscreenWidget(int route_id) {
+  tab_contents_view_helper_.ShowCreatedWidget(tab_contents_,
+                                              route_id,
+                                              true,
+                                              gfx::Rect());
+}
+
+void TabContentsViewAura::ShowContextMenu(
+    const content::ContextMenuParams& params) {
+  // Allow WebContentsDelegates to handle the context menu operation first.
+  if (tab_contents_->GetDelegate() &&
+      tab_contents_->GetDelegate()->HandleContextMenu(params)) {
+    return;
+  }
+
+  if (delegate_.get())
+    delegate_->ShowContextMenu(params);
+}
+
+void TabContentsViewAura::ShowPopupMenu(const gfx::Rect& bounds,
+                                        int item_height,
+                                        double item_font_size,
+                                        int selected_item,
+                                        const std::vector<WebMenuItem>& items,
+                                        bool right_aligned) {
+  // External popup menus are only used on Mac.
+  NOTIMPLEMENTED();
+}
+
+void TabContentsViewAura::StartDragging(
+    const WebDropData& drop_data,
+    WebKit::WebDragOperationsMask operations,
+    const SkBitmap& image,
+    const gfx::Point& image_offset) {
+  aura::RootWindow* root_window = GetNativeView()->GetRootWindow();
+  if (!aura::client::GetDragDropClient(root_window))
+    return;
+
+  ui::OSExchangeDataProviderAura* provider = new ui::OSExchangeDataProviderAura;
+  PrepareDragData(drop_data, provider);
+  if (!image.isNull())
+    provider->set_drag_image(image);
+  ui::OSExchangeData data(provider);  // takes ownership of |provider|.
+
+  scoped_ptr<WebDragSourceAura> drag_source(
+      new WebDragSourceAura(tab_contents_));
+
+  // We need to enable recursive tasks on the message loop so we can get
+  // updates while in the system DoDragDrop loop.
+  int result_op = 0;
+  {
+    // TODO(sad): Avoid using last_mouse_location here, since the drag may not
+    // always start from a mouse-event (e.g. a touch or gesture event could
+    // initiate the drag). The location information should be carried over from
+    // webkit. http://crbug.com/114754
+    gfx::Point location(root_window->last_mouse_location());
+    location.Offset(-image_offset.x(), -image_offset.y());
+    MessageLoop::ScopedNestableTaskAllower allow(MessageLoop::current());
+    result_op = aura::client::GetDragDropClient(root_window)->StartDragAndDrop(
+        data, location, ConvertFromWeb(operations));
+  }
+
+  EndDrag(ConvertToWeb(result_op));
+  tab_contents_->GetRenderViewHost()->DragSourceSystemDragEnded();}
+
+void TabContentsViewAura::UpdateDragCursor(WebKit::WebDragOperation operation) {
+  current_drag_op_ = operation;
+}
+
+void TabContentsViewAura::GotFocus() {
+  if (tab_contents_->GetDelegate())
+    tab_contents_->GetDelegate()->WebContentsFocused(tab_contents_);
+}
+
+void TabContentsViewAura::TakeFocus(bool reverse) {
+  if (tab_contents_->GetDelegate() &&
+      !tab_contents_->GetDelegate()->TakeFocus(reverse) &&
+      delegate_.get()) {
+    delegate_->TakeFocus(reverse);
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TabContentsViewAura, aura::WindowDelegate implementation:
+
+gfx::Size TabContentsViewAura::GetMinimumSize() const {
+  return gfx::Size();
+}
+
+void TabContentsViewAura::OnBoundsChanged(const gfx::Rect& old_bounds,
+                                          const gfx::Rect& new_bounds) {
+  SizeChangedCommon(new_bounds.size());
+  if (delegate_.get())
+    delegate_->SizeChanged(new_bounds.size());
+}
+
+void TabContentsViewAura::OnFocus() {
+}
+
+void TabContentsViewAura::OnBlur() {
+}
+
+bool TabContentsViewAura::OnKeyEvent(aura::KeyEvent* event) {
+  return false;
+}
+
+gfx::NativeCursor TabContentsViewAura::GetCursor(const gfx::Point& point) {
+  return gfx::kNullCursor;
+}
+
+int TabContentsViewAura::GetNonClientComponent(const gfx::Point& point) const {
+  return HTCLIENT;
+}
+
+bool TabContentsViewAura::OnMouseEvent(aura::MouseEvent* event) {
+  if (!tab_contents_->GetDelegate())
+    return false;
+
+  switch (event->type()) {
+    case ui::ET_MOUSE_PRESSED:
+      tab_contents_->GetDelegate()->ActivateContents(tab_contents_);
+      break;
+    case ui::ET_MOUSE_MOVED:
+      tab_contents_->GetDelegate()->ContentsMouseEvent(
+          tab_contents_, gfx::Screen::GetCursorScreenPoint(), true);
+      break;
+    default:
+      break;
+  }
+  return false;
+}
+
+ui::TouchStatus TabContentsViewAura::OnTouchEvent(aura::TouchEvent* event) {
+  return ui::TOUCH_STATUS_UNKNOWN;
+}
+
+ui::GestureStatus TabContentsViewAura::OnGestureEvent(
+    aura::GestureEvent* event) {
+  return ui::GESTURE_STATUS_UNKNOWN;
+}
+
+bool TabContentsViewAura::CanFocus() {
+  return false;
+}
+
+void TabContentsViewAura::OnCaptureLost() {
+}
+
+void TabContentsViewAura::OnPaint(gfx::Canvas* canvas) {
+}
+
+void TabContentsViewAura::OnWindowDestroying() {
+}
+
+void TabContentsViewAura::OnWindowDestroyed() {
+}
+
+void TabContentsViewAura::OnWindowVisibilityChanged(bool visible) {
+  if (visible)
+    tab_contents_->ShowContents();
+  else
+    tab_contents_->HideContents();
+}
+////////////////////////////////////////////////////////////////////////////////
+// TabContentsViewAura, aura::client::DragDropDelegate implementation:
+
+void TabContentsViewAura::OnDragEntered(const aura::DropTargetEvent& event) {
+  if (GetDragDestDelegate())
+    GetDragDestDelegate()->DragInitialize(tab_contents_);
+
+  WebDropData drop_data;
+  PrepareWebDropData(&drop_data, event.data());
+  WebKit::WebDragOperationsMask op = ConvertToWeb(event.source_operations());
+
+  gfx::Point screen_pt =
+      GetNativeView()->GetRootWindow()->last_mouse_location();
+  tab_contents_->GetRenderViewHost()->DragTargetDragEnter(
+      drop_data, event.location(), screen_pt, op);
+
+  if (GetDragDestDelegate()) {
+    GetDragDestDelegate()->OnReceiveDragData(event.data());
+    GetDragDestDelegate()->OnDragEnter();
+  }
+}
+
+int TabContentsViewAura::OnDragUpdated(const aura::DropTargetEvent& event) {
+  WebKit::WebDragOperationsMask op = ConvertToWeb(event.source_operations());
+  gfx::Point screen_pt =
+      GetNativeView()->GetRootWindow()->last_mouse_location();
+  tab_contents_->GetRenderViewHost()->DragTargetDragOver(
+      event.location(), screen_pt, op);
+
+  if (GetDragDestDelegate())
+    GetDragDestDelegate()->OnDragOver();
+
+  return ConvertFromWeb(current_drag_op_);
+}
+
+void TabContentsViewAura::OnDragExited() {
+  tab_contents_->GetRenderViewHost()->DragTargetDragLeave();
+  if (GetDragDestDelegate())
+    GetDragDestDelegate()->OnDragLeave();
+}
+
+int TabContentsViewAura::OnPerformDrop(const aura::DropTargetEvent& event) {
+  tab_contents_->GetRenderViewHost()->DragTargetDrop(
+      event.location(),
+      GetNativeView()->GetRootWindow()->last_mouse_location());
+  if (GetDragDestDelegate())
+    GetDragDestDelegate()->OnDrop();
+  return current_drag_op_;
+}