Track text selection on the browser side (Mac)

content/browser/renderer_host/render_widget_host_view_base.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.
 
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
@@ skipping 46 matching lines @@
   // host pointer, as in RenderWidgetHostViewGuest. There is no harm in calling
   // NotifyObserversAboutShutdown() twice, as the observers are required to
   // de-register on the first call, and so the second call does nothing.
   NotifyObserversAboutShutdown();
   // If we have a live reference to |text_input_manager_|, we should unregister
   // so that the |text_input_manager_| will free its state.
   if (text_input_manager_)
     text_input_manager_->Unregister(this);
 }
 
+// static
+RenderWidgetHostViewBase* RenderWidgetHostViewBase::GetFocusedSubView(
+    RenderWidgetHostViewBase* view) {
+  RenderWidgetHostImpl* host =
+      RenderWidgetHostImpl::From(view->GetRenderWidgetHost());
+
+  if (!host || !host->delegate())
+    return nullptr;
+
+  RenderWidgetHostImpl* focused_widget =
+      host->delegate()->GetFocusedRenderWidgetHost(host);
+
+  return focused_widget ? focused_widget->GetView() : nullptr;
+}
+
+RenderWidgetHost* RenderWidgetHostViewBase::GetRenderWidgetHost() const {
+  return nullptr;
+}
+
 void RenderWidgetHostViewBase::NotifyObserversAboutShutdown() {
   // Note: RenderWidgetHostInputEventRouter is an observer, and uses the
   // following notification to remove this view from its surface owners map.
   FOR_EACH_OBSERVER(RenderWidgetHostViewBaseObserver,
                     observers_,
                     OnRenderWidgetHostViewBaseDestroyed(this));
   // All observers are required to disconnect after they are notified.
   DCHECK(!observers_.might_have_observers());
 }
 
@@ skipping 33 matching lines @@
   if (GetTextInputManager())
     GetTextInputManager()->SelectionBoundsChanged(this, params);
 }
 
 void RenderWidgetHostViewBase::SelectionChanged(const base::string16& text,
                                                 size_t offset,
                                                 const gfx::Range& range) {
 // TODO(ekaramad): Use TextInputManager code paths for IME on other platforms.
 // Also, remove the following local variables when that happens
 // (https://crbug.com/578168 and https://crbug.com/602427).
-#if defined(USE_AURA)
+#if !defined(OS_ANDROID)
   if (GetTextInputManager())
     GetTextInputManager()->SelectionChanged(this, text, offset, range);
 #else
   selection_text_ = text;
   selection_text_offset_ = offset;
   selection_range_.set_start(range.start());
   selection_range_.set_end(range.end());
 #endif
 }
 
@@ skipping 12 matching lines @@
 
 void RenderWidgetHostViewBase::SetShowingContextMenu(bool showing) {
   DCHECK_NE(showing_context_menu_, showing);
   showing_context_menu_ = showing;
 }
 
 base::string16 RenderWidgetHostViewBase::GetSelectedText() {
 // TODO(ekaramad): Use TextInputManager code paths for IME on other platforms.
 // Also, remove the following local variables when that happens
 // (https://crbug.com/578168 and https://crbug.com/602427).
-#if defined(USE_AURA)
+#if !defined(OS_ANDROID)
   if (!GetTextInputManager())
     return base::string16();
 
   const TextInputManager::TextSelection* selection =
       GetTextInputManager()->GetTextSelection(this);
 
   if (!selection || !selection->range.IsValid())
     return base::string16();
 
   return selection->text.substr(selection->range.GetMin() - selection->offset,
@@ skipping 329 matching lines @@
 
 bool RenderWidgetHostViewBase::IsChildFrameForTesting() const {
   return false;
 }
 
 cc::SurfaceId RenderWidgetHostViewBase::SurfaceIdForTesting() const {
   return cc::SurfaceId();
 }
 
 }  // namespace content