File: x11_menu_list.cc

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// Copyright (c) 2014 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/base/x/x11_menu_list.h"

#include "base/memory/singleton.h"
#include "ui/base/x/x11_util.h"

namespace ui {

// static
XMenuList* XMenuList::GetInstance() {
  return Singleton<XMenuList>::get();
}

XMenuList::XMenuList()
    : menu_type_atom_(GetAtom("_NET_WM_WINDOW_TYPE_MENU")) {
}

XMenuList::~XMenuList() {
  menus_.clear();
}

void XMenuList::MaybeRegisterMenu(XID menu) {
  int value = 0;
  if (!GetIntProperty(menu, "_NET_WM_WINDOW_TYPE", &value) ||
      static_cast<XAtom>(value) != menu_type_atom_) {
    return;
  }
  menus_.push_back(menu);
}

void XMenuList::MaybeUnregisterMenu(XID menu) {
  std::vector<XID>::iterator iter = std::find(menus_.begin(), menus_.end(),
                                              menu);
  if (iter == menus_.end())
    return;
  menus_.erase(iter);
}

void XMenuList::InsertMenuWindowXIDs(std::vector<XID>* stack) {
  stack->insert(stack->begin(), menus_.begin(), menus_.end());
}

}  // namespace ui