chrome/browser/extensions/window_controller_list.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 "chrome/browser/extensions/window_controller_list.h"
   6
   7 #include <algorithm>
   8
   9 #include "chrome/browser/extensions/api/tabs/windows_util.h"
  10 #include "chrome/browser/extensions/chrome_extension_function_details.h"
  11 #include "chrome/browser/extensions/window_controller_list_observer.h"
  12 #include "components/sessions/session_id.h"
  13 #include "extensions/browser/extension_function.h"
  14 #include "ui/base/base_window.h"
  15
  16 namespace extensions {
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 // WindowControllerList
  20
  21 // static
  22 WindowControllerList* WindowControllerList::GetInstance() {
  23   return Singleton<WindowControllerList>::get();
  24 }
  25
  26 WindowControllerList::WindowControllerList() {
  27 }
  28
  29 WindowControllerList::~WindowControllerList() {
  30 }
  31
  32 void WindowControllerList::AddExtensionWindow(WindowController* window) {
  33   windows_.push_back(window);
  34   FOR_EACH_OBSERVER(WindowControllerListObserver, observers_,
  35                     OnWindowControllerAdded(window));
  36 }
  37
  38 void WindowControllerList::RemoveExtensionWindow(WindowController* window) {
  39   ControllerList::iterator iter = std::find(
  40       windows_.begin(), windows_.end(), window);
  41   if (iter != windows_.end()) {
  42     windows_.erase(iter);
  43     FOR_EACH_OBSERVER(WindowControllerListObserver, observers_,
  44                       OnWindowControllerRemoved(window));
  45   }
  46 }
  47
  48 void WindowControllerList::AddObserver(WindowControllerListObserver* observer) {
  49   observers_.AddObserver(observer);
  50 }
  51
  52 void WindowControllerList::RemoveObserver(
  53     WindowControllerListObserver* observer) {
  54   observers_.RemoveObserver(observer);
  55 }
  56
  57 WindowController* WindowControllerList::FindWindowById(int id) const {
  58   for (ControllerList::const_iterator iter = windows().begin();
  59        iter != windows().end(); ++iter) {
  60     if ((*iter)->GetWindowId() == id)
  61       return *iter;
  62   }
  63   return NULL;
  64 }
  65
  66 WindowController* WindowControllerList::FindWindowForFunctionById(
  67     const UIThreadExtensionFunction* function,
  68     int id) const {
  69   WindowController* controller = FindWindowById(id);
  70   if (controller && windows_util::CanOperateOnWindow(function, controller))
  71     return controller;
  72   return NULL;
  73 }
  74
  75 WindowController* WindowControllerList::CurrentWindowForFunction(
  76     const UIThreadExtensionFunction* function) const {
  77   WindowController* result = NULL;
  78   // Returns either the focused window (if any), or the last window in the list.
  79   for (ControllerList::const_iterator iter = windows().begin();
  80        iter != windows().end(); ++iter) {
  81     if (windows_util::CanOperateOnWindow(function, *iter)) {
  82       result = *iter;
  83       if (result->window()->IsActive())
  84         break;  // use focused window
  85     }
  86   }
  87   return result;
  88 }
  89
  90 }  // namespace extensions