Use customized RGBA-enabled tooltip window for tooltip on ChroemOS

chrome/browser/renderer_host/render_widget_host_view_gtk.cc

 // Copyright (c) 2010 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.
 
 #include "chrome/browser/renderer_host/render_widget_host_view_gtk.h"
 
 // If this gets included after the gtk headers, then a bunch of compiler
 // errors happen because of a "#define Status int" in Xlib.h, which interacts
 // badly with URLRequestStatus::Status.
 #include "chrome/common/render_messages.h"
@@ skipping 21 matching lines @@
 #include "chrome/browser/renderer_host/gtk_im_context_wrapper.h"
 #include "chrome/browser/renderer_host/gtk_key_bindings_handler.h"
 #include "chrome/browser/renderer_host/render_widget_host.h"
 #include "chrome/browser/renderer_host/video_layer_x.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/native_web_keyboard_event.h"
 #include "gfx/gtk_util.h"
 #include "third_party/WebKit/WebKit/chromium/public/gtk/WebInputEventFactory.h"
 #include "webkit/glue/webcursor_gtk_data.h"
 
+#if defined(OS_CHROMEOS)
+#include "views/widget/tooltip_window_gtk.h"
+#endif  // defined(OS_CHROMEOS)
+
 static const int kMaxWindowWidth = 4000;
 static const int kMaxWindowHeight = 4000;
 
 static const char* kRenderWidgetHostViewKey = "__RENDER_WIDGET_HOST_VIEW__";
 
 using WebKit::WebInputEventFactory;
 
 // This class is a simple convenience wrapper for Gtk functions. It has only
 // static methods.
 class RenderWidgetHostViewGtkWidget {
@@ skipping 290 matching lines @@
   view_.Destroy();
 }
 
 void RenderWidgetHostViewGtk::InitAsChild() {
   view_.Own(RenderWidgetHostViewGtkWidget::CreateNewWidget(this));
   // |im_context_| must be created after creating |view_| widget.
   im_context_.reset(new GtkIMContextWrapper(this));
   // |key_bindings_handler_| must be created after creating |view_| widget.
   key_bindings_handler_.reset(new GtkKeyBindingsHandler(view_.get()));
   plugin_container_manager_.set_host_widget(view_.get());
+
+#if defined(OS_CHROMEOS)
+  tooltip_window_.reset(new views::TooltipWindowGtk(view_.get()));
+#endif  // defined(OS_CHROMEOS)
+
   gtk_widget_show(view_.get());
 }
 
 void RenderWidgetHostViewGtk::InitAsPopup(
     RenderWidgetHostView* parent_host_view, const gfx::Rect& pos) {
   parent_host_view_ = parent_host_view;
   parent_ = parent_host_view->GetNativeView();
   GtkWidget* popup = gtk_window_new(GTK_WINDOW_POPUP);
   view_.Own(RenderWidgetHostViewGtkWidget::CreateNewWidget(this));
   // |im_context_| must be created after creating |view_| widget.
   im_context_.reset(new GtkIMContextWrapper(this));
   // |key_bindings_handler_| must be created after creating |view_| widget.
   key_bindings_handler_.reset(new GtkKeyBindingsHandler(view_.get()));
   plugin_container_manager_.set_host_widget(view_.get());
+
+#if defined(OS_CHROMEOS)
+  tooltip_window_.reset(new views::TooltipWindowGtk(view_.get()));
+#endif  // defined(OS_CHROMEOS)
+
   gtk_container_add(GTK_CONTAINER(popup), view_.get());
 
   // If we are not activatable, we don't want to grab keyboard input,
   // and webkit will manage our destruction.
   if (NeedsInputGrab()) {
     // Grab all input for the app. If a click lands outside the bounds of the
     // popup, WebKit will notice and destroy us. Before doing this we need
     // to ensure that the the popup is added to the browser's window group,
     // to allow for the grabs to work correctly.
     gtk_window_group_add_window(gtk_window_get_group(
@@ skipping 225 matching lines @@
   // this itself).
   // I filed https://bugzilla.gnome.org/show_bug.cgi?id=604641 upstream.
   const std::wstring& clamped_tooltip =
       l10n_util::TruncateString(tooltip_text, kMaxTooltipLength);
 
   if (clamped_tooltip.empty()) {
     gtk_widget_set_has_tooltip(view_.get(), FALSE);
   } else {
     gtk_widget_set_tooltip_text(view_.get(),
                                 WideToUTF8(clamped_tooltip).c_str());
+#if defined(OS_CHROMEOS)
+    tooltip_window_->SetTooltipText(clamped_tooltip);
+#endif  // defined(OS_CHROMEOS)
   }
 }
 
 void RenderWidgetHostViewGtk::SelectionChanged(const std::string& text) {
   GtkClipboard* x_clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
   gtk_clipboard_set_text(x_clipboard, text.c_str(), text.length());
 }
 
 void RenderWidgetHostViewGtk::ShowingContextMenu(bool showing) {
   is_showing_context_menu_ = showing;
@@ skipping 221 matching lines @@
 }
 
 // static
 RenderWidgetHostView*
     RenderWidgetHostView::GetRenderWidgetHostViewFromNativeView(
         gfx::NativeView widget) {
   gpointer user_data = g_object_get_data(G_OBJECT(widget),
                                          kRenderWidgetHostViewKey);
   return reinterpret_cast<RenderWidgetHostView*>(user_data);
 }