chrome/browser/ui/views/login_prompt_views.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/ui/login/login_prompt.h"
   6
   7 #include "base/strings/string16.h"
   8 #include "base/strings/utf_string_conversions.h"
   9 #include "chrome/browser/ui/views/login_view.h"
  10 #include "chrome/grit/generated_resources.h"
  11 #include "components/constrained_window/constrained_window_views.h"
  12 #include "components/password_manager/core/browser/password_manager.h"
  13 #include "content/public/browser/browser_thread.h"
  14 #include "content/public/browser/render_view_host.h"
  15 #include "content/public/browser/web_contents.h"
  16 #include "net/url_request/url_request.h"
  17 #include "ui/base/l10n/l10n_util.h"
  18 #include "ui/views/widget/widget.h"
  19 #include "ui/views/window/dialog_delegate.h"
  20
  21 // ----------------------------------------------------------------------------
  22 // LoginHandlerViews
  23
  24 // This class simply forwards the authentication from the LoginView (on
  25 // the UI thread) to the net::URLRequest (on the I/O thread).
  26 // This class uses ref counting to ensure that it lives until all InvokeLaters
  27 // have been called.
  28 class LoginHandlerViews : public LoginHandler, public views::DialogDelegate {
  29  public:
  30   LoginHandlerViews(net::AuthChallengeInfo* auth_info, net::URLRequest* request)
  31       : LoginHandler(auth_info, request),
  32         login_view_(NULL),
  33         dialog_(NULL) {
  34   }
  35
  36   // LoginModelObserver:
  37   void OnAutofillDataAvailable(const base::string16& username,
  38                                const base::string16& password) override {
  39     // Nothing to do here since LoginView takes care of autofill for win.
  40   }
  41   void OnLoginModelDestroying() override {}
  42
  43   // views::DialogDelegate:
  44   base::string16 GetDialogButtonLabel(ui::DialogButton button) const override {
  45     if (button == ui::DIALOG_BUTTON_OK)
  46       return l10n_util::GetStringUTF16(IDS_LOGIN_DIALOG_OK_BUTTON_LABEL);
  47     return DialogDelegate::GetDialogButtonLabel(button);
  48   }
  49
  50   base::string16 GetWindowTitle() const override {
  51     return l10n_util::GetStringUTF16(IDS_LOGIN_DIALOG_TITLE);
  52   }
  53
  54   void WindowClosing() override {
  55     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  56     content::WebContents* web_contents = GetWebContentsForLogin();
  57     if (web_contents)
  58       web_contents->GetRenderViewHost()->SetIgnoreInputEvents(false);
  59
  60     // Reference is no longer valid.
  61     dialog_ = NULL;
  62     CancelAuth();
  63   }
  64
  65   void DeleteDelegate() override {
  66     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  67
  68     // The widget is going to delete itself; clear our pointer.
  69     dialog_ = NULL;
  70     SetModel(NULL);
  71
  72     ReleaseSoon();
  73   }
  74
  75   ui::ModalType GetModalType() const override { return ui::MODAL_TYPE_CHILD; }
  76
  77   bool Cancel() override {
  78     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  79     CancelAuth();
  80     return true;
  81   }
  82
  83   bool Accept() override {
  84     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  85     SetAuth(login_view_->GetUsername(), login_view_->GetPassword());
  86     return true;
  87   }
  88
  89   views::View* GetInitiallyFocusedView() override {
  90     return login_view_->GetInitiallyFocusedView();
  91   }
  92
  93   views::View* GetContentsView() override { return login_view_; }
  94   views::Widget* GetWidget() override { return login_view_->GetWidget(); }
  95   const views::Widget* GetWidget() const override {
  96     return login_view_->GetWidget();
  97   }
  98
  99   // LoginHandler:
 100   void BuildViewForPasswordManager(password_manager::PasswordManager* manager,
 101                                    const base::string16& explanation) override {
 102     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 103
 104     // Create a new LoginView and set the model for it.  The model (password
 105     // manager) is owned by the WebContents, but the view is parented to the
 106     // browser window, so the view may be destroyed after the password
 107     // manager. The view listens for model destruction and unobserves
 108     // accordingly.
 109     login_view_ = new LoginView(explanation, manager);
 110
 111     // Scary thread safety note: This can potentially be called *after* SetAuth
 112     // or CancelAuth (say, if the request was cancelled before the UI thread got
 113     // control).  However, that's OK since any UI interaction in those functions
 114     // will occur via an InvokeLater on the UI thread, which is guaranteed
 115     // to happen after this is called (since this was InvokeLater'd first).
 116     dialog_ = constrained_window::ShowWebModalDialogViews(
 117         this, GetWebContentsForLogin());
 118     NotifyAuthNeeded();
 119   }
 120
 121   void CloseDialog() override {
 122     // The hosting widget may have been freed.
 123     if (dialog_)
 124       dialog_->Close();
 125   }
 126
 127  private:
 128   friend class base::RefCountedThreadSafe<LoginHandlerViews>;
 129   friend class LoginPrompt;
 130
 131   ~LoginHandlerViews() override {}
 132
 133   // The LoginView that contains the user's login information.
 134   LoginView* login_view_;
 135
 136   views::Widget* dialog_;
 137
 138   DISALLOW_COPY_AND_ASSIGN(LoginHandlerViews);
 139 };
 140
 141 // static
 142 LoginHandler* LoginHandler::Create(net::AuthChallengeInfo* auth_info,
 143                                    net::URLRequest* request) {
 144   return new LoginHandlerViews(auth_info, request);
 145 }