MacViews: Enable word lookup for selectable views::Labels and multi-line text.

ui/views/controls/label.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 "ui/views/controls/label.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 377 matching lines @@
       (tooltip_text_.empty() && !ShouldShowDefaultTooltip()))
     return NULL;
 
   return HitTestPoint(point) ? this : NULL;
 }
 
 bool Label::CanProcessEventsWithinSubtree() const {
   return !!GetRenderTextForSelectionController();
 }
 
+WordLookupClient* Label::GetWordLookupClient() {
+  return this;
+}
+
 void Label::GetAccessibleNodeData(ui::AXNodeData* node_data) {
   node_data->role = ui::AX_ROLE_STATIC_TEXT;
   node_data->AddStateFlag(ui::AX_STATE_READ_ONLY);
   // Note that |render_text_| is never elided (see the comment in Init() too).
   node_data->SetName(render_text_->GetDisplayText());
 }
 
 bool Label::GetTooltipText(const gfx::Point& p, base::string16* tooltip) const {
   if (!handles_tooltips_)
     return false;
@@ skipping 218 matching lines @@
 
   context_menu_runner_.reset(
       new MenuRunner(&context_menu_contents_, MenuRunner::HAS_MNEMONICS |
                                                   MenuRunner::CONTEXT_MENU |
                                                   MenuRunner::ASYNC));
   ignore_result(context_menu_runner_->RunMenuAt(
       GetWidget(), nullptr, gfx::Rect(point, gfx::Size()), MENU_ANCHOR_TOPLEFT,
       source_type));
 }
 
+bool Label::GetDecoratedWordAtPoint(const gfx::Point& point,
+                                    gfx::DecoratedText* decorated_word,
+                                    gfx::Point* baseline_point) {
+  gfx::RenderText* render_text = GetRenderTextForSelectionController();
+  return render_text
+             ? render_text->GetDecoratedWordAtPoint(point, decorated_word,
+                                                    baseline_point)
+             : false;
+}
+
 gfx::RenderText* Label::GetRenderTextForSelectionController() {
   return const_cast<gfx::RenderText*>(
       static_cast<const Label*>(this)->GetRenderTextForSelectionController());
 }
 
 bool Label::IsReadOnly() const {
   return true;
 }
 
 bool Label::SupportsDrag() const {
@@ skipping 368 matching lines @@
       .WriteText(GetSelectedText());
 }
 
 void Label::BuildContextMenuContents() {
   context_menu_contents_.AddItemWithStringId(IDS_APP_COPY, IDS_APP_COPY);
   context_menu_contents_.AddItemWithStringId(IDS_APP_SELECT_ALL,
                                              IDS_APP_SELECT_ALL);
 }
 
 }  // namespace views