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      1 // Copyright 2013 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 "chrome/browser/extensions/api/tabs/windows_util.h"
      6 
      7 #include "base/strings/string_number_conversions.h"
      8 #include "chrome/browser/extensions/api/tabs/tabs_constants.h"
      9 #include "chrome/browser/extensions/chrome_extension_function.h"
     10 #include "chrome/browser/extensions/chrome_extension_function_details.h"
     11 #include "chrome/browser/extensions/window_controller.h"
     12 #include "chrome/browser/extensions/window_controller_list.h"
     13 #include "extensions/browser/extension_function_dispatcher.h"
     14 #include "extensions/common/constants.h"
     15 #include "extensions/common/error_utils.h"
     16 
     17 namespace windows_util {
     18 
     19 bool GetWindowFromWindowID(ChromeUIThreadExtensionFunction* function,
     20                            int window_id,
     21                            extensions::WindowController** controller) {
     22   ChromeExtensionFunctionDetails function_details(function);
     23   if (window_id == extension_misc::kCurrentWindowId) {
     24     extensions::WindowController* extension_window_controller =
     25         function->dispatcher()->delegate()->GetExtensionWindowController();
     26     // If there is a window controller associated with this extension, use that.
     27     if (extension_window_controller) {
     28       *controller = extension_window_controller;
     29     } else {
     30       // Otherwise get the focused or most recently added window.
     31       *controller = extensions::WindowControllerList::GetInstance()
     32                         ->CurrentWindowForFunction(function_details);
     33     }
     34     if (!(*controller)) {
     35       function->SetError(extensions::tabs_constants::kNoCurrentWindowError);
     36       return false;
     37     }
     38   } else {
     39     *controller = extensions::WindowControllerList::GetInstance()
     40                       ->FindWindowForFunctionById(function_details, window_id);
     41     if (!(*controller)) {
     42       function->SetError(extensions::ErrorUtils::FormatErrorMessage(
     43           extensions::tabs_constants::kWindowNotFoundError,
     44           base::IntToString(window_id)));
     45       return false;
     46     }
     47   }
     48   return true;
     49 }
     50 
     51 }  // namespace windows_util
     52