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