src/chrome/browser/chromeos/login/ui/captive_portal_window_proxy.cc

   1 // Copyright 2014 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/chromeos/login/ui/captive_portal_window_proxy.h"
   6
   7 #include "chrome/browser/chromeos/login/ui/captive_portal_view.h"
   8 #include "chrome/browser/chromeos/login/ui/proxy_settings_dialog.h"
   9 #include "chrome/browser/chromeos/profiles/profile_helper.h"
  10 #include "components/web_modal/popup_manager.h"
  11 #include "ui/views/widget/widget.h"
  12
  13 namespace {
  14
  15 // The captive portal dialog is system-modal, but uses the web-content-modal
  16 // dialog manager (odd) and requires this atypical dialog widget initialization.
  17 views::Widget* CreateWindowAsFramelessChild(views::WidgetDelegate* delegate,
  18                                             gfx::NativeView parent) {
  19   views::Widget* widget = new views::Widget;
  20
  21   views::Widget::InitParams params;
  22   params.delegate = delegate;
  23   params.child = true;
  24   params.parent = parent;
  25   params.remove_standard_frame = true;
  26   params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
  27
  28   widget->Init(params);
  29   return widget;
  30 }
  31
  32 }  // namespace
  33
  34 namespace chromeos {
  35
  36 CaptivePortalWindowProxy::CaptivePortalWindowProxy(
  37     Delegate* delegate,
  38     content::WebContents* web_contents)
  39     : delegate_(delegate),
  40       widget_(NULL),
  41       web_contents_(web_contents),
  42       captive_portal_view_for_testing_(NULL) {
  43   DCHECK(GetState() == STATE_IDLE);
  44 }
  45
  46 CaptivePortalWindowProxy::~CaptivePortalWindowProxy() {
  47   if (!widget_)
  48     return;
  49   DCHECK(GetState() == STATE_DISPLAYED);
  50   widget_->RemoveObserver(this);
  51   widget_->Close();
  52 }
  53
  54 void CaptivePortalWindowProxy::ShowIfRedirected() {
  55   if (GetState() != STATE_IDLE)
  56     return;
  57   InitCaptivePortalView();
  58   DCHECK(GetState() == STATE_WAITING_FOR_REDIRECTION);
  59 }
  60
  61 void CaptivePortalWindowProxy::Show() {
  62   if (ProxySettingsDialog::IsShown()) {
  63     // ProxySettingsDialog is being shown, don't cover it.
  64     Close();
  65     return;
  66   }
  67
  68   if (GetState() == STATE_DISPLAYED)  // Dialog is already shown, do nothing.
  69     return;
  70
  71   InitCaptivePortalView();
  72
  73   CaptivePortalView* portal = captive_portal_view_.release();
  74   web_modal::PopupManager* popup_manager =
  75       web_modal::PopupManager::FromWebContents(web_contents_);
  76   if (popup_manager) {
  77     widget_ =
  78         CreateWindowAsFramelessChild(portal, popup_manager->GetHostView());
  79     portal->Init();
  80     widget_->AddObserver(this);
  81     popup_manager->ShowModalDialog(widget_->GetNativeView(), web_contents_);
  82   }
  83 }
  84
  85 void CaptivePortalWindowProxy::Close() {
  86   if (GetState() == STATE_DISPLAYED)
  87     widget_->Close();
  88   captive_portal_view_.reset();
  89   captive_portal_view_for_testing_ = NULL;
  90 }
  91
  92 void CaptivePortalWindowProxy::OnRedirected() {
  93   if (GetState() == STATE_WAITING_FOR_REDIRECTION)
  94     Show();
  95   delegate_->OnPortalDetected();
  96 }
  97
  98 void CaptivePortalWindowProxy::OnOriginalURLLoaded() {
  99   Close();
 100 }
 101
 102 void CaptivePortalWindowProxy::OnWidgetClosing(views::Widget* widget) {
 103   DCHECK(GetState() == STATE_DISPLAYED);
 104   DCHECK(widget == widget_);
 105
 106   DetachFromWidget(widget);
 107
 108   DCHECK(GetState() == STATE_IDLE);
 109 }
 110
 111 void CaptivePortalWindowProxy::OnWidgetDestroying(views::Widget* widget) {
 112   DetachFromWidget(widget);
 113 }
 114
 115 void CaptivePortalWindowProxy::OnWidgetDestroyed(views::Widget* widget) {
 116   DetachFromWidget(widget);
 117 }
 118
 119 void CaptivePortalWindowProxy::InitCaptivePortalView() {
 120   DCHECK(GetState() == STATE_IDLE ||
 121          GetState() == STATE_WAITING_FOR_REDIRECTION);
 122   if (!captive_portal_view_.get()) {
 123     captive_portal_view_.reset(
 124         new CaptivePortalView(ProfileHelper::GetSigninProfile(), this));
 125     captive_portal_view_for_testing_ = captive_portal_view_.get();
 126   }
 127   captive_portal_view_->StartLoad();
 128 }
 129
 130 CaptivePortalWindowProxy::State CaptivePortalWindowProxy::GetState() const {
 131   if (widget_ == NULL) {
 132     if (captive_portal_view_.get() == NULL)
 133       return STATE_IDLE;
 134     else
 135       return STATE_WAITING_FOR_REDIRECTION;
 136   } else {
 137     if (captive_portal_view_.get() == NULL)
 138       return STATE_DISPLAYED;
 139     else
 140       NOTREACHED();
 141   }
 142   return STATE_UNKNOWN;
 143 }
 144
 145 void CaptivePortalWindowProxy::DetachFromWidget(views::Widget* widget) {
 146   if (!widget_ || widget_ != widget)
 147     return;
 148   widget_->RemoveObserver(this);
 149   widget_ = NULL;
 150 }
 151
 152 }  // namespace chromeos