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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ui/wm/public/scoped_tooltip_disabler.h"
      6 
      7 #include "ui/aura/window.h"
      8 #include "ui/wm/public/tooltip_client.h"
      9 
     10 namespace aura {
     11 namespace client {
     12 
     13 ScopedTooltipDisabler::ScopedTooltipDisabler(aura::Window* window)
     14     : root_(window ? window->GetRootWindow() : NULL) {
     15   if (root_) {
     16     root_->AddObserver(this);
     17     TooltipClient* client = GetTooltipClient(root_);
     18     if (client)
     19       client->SetTooltipsEnabled(false);
     20   }
     21 }
     22 
     23 ScopedTooltipDisabler::~ScopedTooltipDisabler() {
     24   EnableTooltips();
     25 }
     26 
     27 void ScopedTooltipDisabler::EnableTooltips() {
     28   if (!root_)
     29     return;
     30   TooltipClient* client = GetTooltipClient(root_);
     31   if (client)
     32     client->SetTooltipsEnabled(true);
     33   root_->RemoveObserver(this);
     34   root_ = NULL;
     35 }
     36 
     37 void ScopedTooltipDisabler::OnWindowDestroying(aura::Window* window) {
     38   EnableTooltips();
     39 }
     40 
     41 
     42 }  // namespace client
     43 }  // namespace aura
     44