window_controller_list.cc revision 90dce4d38c5ff5333bea97d859d4e484e27edf0c 
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/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
14namespace extensions {
15
16///////////////////////////////////////////////////////////////////////////////
17// WindowControllerList
18
19// static
20WindowControllerList* WindowControllerList::GetInstance() {
21  return Singleton<WindowControllerList>::get();
22}
23
24WindowControllerList::WindowControllerList() {
25}
26
27WindowControllerList::~WindowControllerList() {
28}
29
30void WindowControllerList::AddExtensionWindow(WindowController* window) {
31  windows_.push_back(window);
32  FOR_EACH_OBSERVER(WindowControllerListObserver, observers_,
33                    OnWindowControllerAdded(window));
34}
35
36void 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
46void WindowControllerList::AddObserver(WindowControllerListObserver* observer) {
47  observers_.AddObserver(observer);
48}
49
50void WindowControllerList::RemoveObserver(
51    WindowControllerListObserver* observer) {
52  observers_.RemoveObserver(observer);
53}
54
55WindowController* 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
64WindowController* WindowControllerList::FindWindowForFunctionById(
65    const UIThreadExtensionFunction* function,
66    int id) const {
67  WindowController* controller = FindWindowById(id);
68  if (controller && function->CanOperateOnWindow(controller))
69    return controller;
70  return NULL;
71}
72
73WindowController* WindowControllerList::CurrentWindowForFunction(
74    const UIThreadExtensionFunction* 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
89