extensions/browser/view_type_utils.cc

   1 // Copyright (c) 2012 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 "extensions/browser/view_type_utils.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "content/public/browser/web_contents.h"
   9
  10 using content::WebContents;
  11
  12 namespace extensions {
  13
  14 namespace {
  15
  16 const char kViewTypeUserDataKey[] = "ViewTypeUserData";
  17
  18 class ViewTypeUserData : public base::SupportsUserData::Data {
  19  public:
  20   explicit ViewTypeUserData(ViewType type) : type_(type) {}
  21   virtual ~ViewTypeUserData() {}
  22   ViewType type() { return type_; }
  23
  24  private:
  25   ViewType type_;
  26 };
  27
  28 }  // namespace
  29
  30 ViewType GetViewType(WebContents* tab) {
  31   if (!tab)
  32     return VIEW_TYPE_INVALID;
  33
  34   ViewTypeUserData* user_data = static_cast<ViewTypeUserData*>(
  35       tab->GetUserData(&kViewTypeUserDataKey));
  36
  37   return user_data ? user_data->type() : VIEW_TYPE_INVALID;
  38 }
  39
  40 void SetViewType(WebContents* tab, ViewType type) {
  41   tab->SetUserData(&kViewTypeUserDataKey, new ViewTypeUserData(type));
  42 }
  43
  44 }  // namespace chrome