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      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/chromeos/login/captive_portal_window_proxy.h"
      6 
      7 #include "chrome/browser/chromeos/login/captive_portal_view.h"
      8 #include "chrome/browser/chromeos/login/helper.h"
      9 #include "chrome/browser/chromeos/login/proxy_settings_dialog.h"
     10 #include "chrome/browser/chromeos/profiles/profile_helper.h"
     11 #include "ui/views/widget/widget.h"
     12 
     13 namespace {
     14 
     15 int kMargin = 50;
     16 
     17 }  // namespace
     18 
     19 namespace chromeos {
     20 
     21 CaptivePortalWindowProxy::CaptivePortalWindowProxy(Delegate* delegate,
     22                                                    gfx::NativeWindow parent)
     23     : delegate_(delegate),
     24       widget_(NULL),
     25       parent_(parent) {
     26   DCHECK(GetState() == STATE_IDLE);
     27 }
     28 
     29 CaptivePortalWindowProxy::~CaptivePortalWindowProxy() {
     30   if (!widget_)
     31     return;
     32   DCHECK(GetState() == STATE_DISPLAYED);
     33   widget_->RemoveObserver(this);
     34   widget_->Close();
     35 }
     36 
     37 void CaptivePortalWindowProxy::ShowIfRedirected() {
     38   if (GetState() != STATE_IDLE)
     39     return;
     40   InitCaptivePortalView();
     41   DCHECK(GetState() == STATE_WAITING_FOR_REDIRECTION);
     42 }
     43 
     44 void CaptivePortalWindowProxy::Show() {
     45   if (ProxySettingsDialog::IsShown()) {
     46     // ProxySettingsDialog is being shown, don't cover it.
     47     Close();
     48     return;
     49   }
     50 
     51   if (GetState() == STATE_DISPLAYED)  // Dialog is already shown, do nothing.
     52     return;
     53 
     54   InitCaptivePortalView();
     55 
     56   CaptivePortalView* captive_portal_view = captive_portal_view_.release();
     57   widget_ = views::Widget::CreateWindowWithParent(
     58       captive_portal_view,
     59       parent_);
     60   captive_portal_view->Init();
     61 
     62   gfx::Rect bounds(CalculateScreenBounds(gfx::Size()));
     63   bounds.Inset(kMargin, kMargin);
     64   widget_->SetBounds(bounds);
     65 
     66   widget_->AddObserver(this);
     67   widget_->Show();
     68   DCHECK(GetState() == STATE_DISPLAYED);
     69 }
     70 
     71 void CaptivePortalWindowProxy::Close() {
     72   if (GetState() == STATE_DISPLAYED)
     73     widget_->Close();
     74   captive_portal_view_.reset();
     75 }
     76 
     77 void CaptivePortalWindowProxy::OnRedirected() {
     78   if (GetState() == STATE_WAITING_FOR_REDIRECTION)
     79     Show();
     80   delegate_->OnPortalDetected();
     81 }
     82 
     83 void CaptivePortalWindowProxy::OnOriginalURLLoaded() {
     84   Close();
     85 }
     86 
     87 void CaptivePortalWindowProxy::OnWidgetClosing(views::Widget* widget) {
     88   DCHECK(GetState() == STATE_DISPLAYED);
     89   DCHECK(widget == widget_);
     90 
     91   widget->RemoveObserver(this);
     92   widget_ = NULL;
     93 
     94   DCHECK(GetState() == STATE_IDLE);
     95 }
     96 
     97 void CaptivePortalWindowProxy::InitCaptivePortalView() {
     98   DCHECK(GetState() == STATE_IDLE ||
     99          GetState() == STATE_WAITING_FOR_REDIRECTION);
    100   if (!captive_portal_view_.get()) {
    101     captive_portal_view_.reset(
    102         new CaptivePortalView(ProfileHelper::GetSigninProfile(), this));
    103   }
    104   captive_portal_view_->StartLoad();
    105 }
    106 
    107 CaptivePortalWindowProxy::State CaptivePortalWindowProxy::GetState() const {
    108   if (widget_ == NULL) {
    109     if (captive_portal_view_.get() == NULL)
    110       return STATE_IDLE;
    111     else
    112       return STATE_WAITING_FOR_REDIRECTION;
    113   } else {
    114     if (captive_portal_view_.get() == NULL)
    115       return STATE_DISPLAYED;
    116     else
    117       NOTREACHED();
    118   }
    119   return STATE_UNKNOWN;
    120 }
    121 
    122 }  // namespace chromeos
    123