Show ChromeVox caption panel when spoken feedback is enabled.

ash/shelf/shelf_layout_manager.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 "ash/shelf/shelf_layout_manager.h"
 
 #include <algorithm>
 #include <cmath>
 #include <cstring>
 #include <string>
@@ skipping 523 matching lines @@
     aura::Window* gained_active,
     aura::Window* lost_active) {
   UpdateAutoHideStateNow();
 }
 
 bool ShelfLayoutManager::IsHorizontalAlignment() const {
   return GetAlignment() == SHELF_ALIGNMENT_BOTTOM ||
          GetAlignment() == SHELF_ALIGNMENT_TOP;
 }
 
+gfx::Insets ShelfLayoutManager::GetWorkAreaInsets() const {
+  return work_area_insets_;
+}
+
 // static
 ShelfLayoutManager* ShelfLayoutManager::ForShelf(aura::Window* window) {
   ShelfWidget* shelf = RootWindowController::ForShelf(window)->shelf();
   return shelf ? shelf->shelf_layout_manager() : NULL;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ShelfLayoutManager, private:
 
 ShelfLayoutManager::TargetBounds::TargetBounds()
@@ skipping 143 matching lines @@
     gfx::Rect status_bounds = target_bounds.status_bounds_in_shelf;
     status_bounds.set_x(status_bounds.x() +
                         target_bounds.shelf_bounds_in_root.x());
     status_bounds.set_y(status_bounds.y() +
                         target_bounds.shelf_bounds_in_root.y());
     shelf_->status_area_widget()->SetBounds(
         ScreenUtil::ConvertRectToScreen(
             shelf_->status_area_widget()->GetNativeView()->parent(),
             status_bounds));
     if (!state_.is_screen_locked) {
-      gfx::Insets insets;
       // If user session is blocked (login to new user session or add user to
       // the existing session - multi-profile) then give 100% of work area only
       // if keyboard is not shown.
       if (!state_.is_adding_user_screen || !keyboard_bounds_.IsEmpty()) {
-        insets = target_bounds.work_area_insets;
+        work_area_insets_ = target_bounds.work_area_insets;
+      } else {
+        work_area_insets_ = gfx::Insets();
       }
-      Shell::GetInstance()->SetDisplayWorkAreaInsets(root_window_, insets);
+      Shell::GetInstance()->UpdateDisplayWorkAreaInsets(root_window_);
     }
   }
 
   // Setting visibility during an animation causes the visibility property to
   // animate. Set the visibility property without an animation.
   if (target_bounds.status_opacity)
     shelf_->status_area_widget()->Show();
 }
 
 void ShelfLayoutManager::StopAnimating() {
@@ skipping 399 matching lines @@
   OnWindowResized();
 
   SessionStateDelegate* session_state_delegate =
       Shell::GetInstance()->session_state_delegate();
 
   // On login screen if keyboard has been just hidden, update bounds just once
   // but ignore target_bounds.work_area_insets since shelf overlaps with login
   // window.
   if (session_state_delegate->IsUserSessionBlocked() &&
       keyboard_is_about_to_hide) {
-    Shell::GetInstance()->SetDisplayWorkAreaInsets(root_window_, gfx::Insets());
+    work_area_insets_ = gfx::Insets();
+    Shell::GetInstance()->UpdateDisplayWorkAreaInsets(root_window_);
   }
 }
 
 void ShelfLayoutManager::OnDockBoundsChanging(
     const gfx::Rect& dock_bounds,
     DockedWindowLayoutManagerObserver::Reason reason) {
   // Skip shelf layout in case docked notification originates from this class.
   if (reason == DISPLAY_INSETS_CHANGED)
     return;
   if (dock_bounds_ != dock_bounds) {
@@ skipping 48 matching lines @@
     return false;
   }
   if (session_state_delegate->IsUserSessionBlocked() ||
       state_.is_adding_user_screen) {
     return true;
   }
   return false;
 }
 
 }  // namespace ash