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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/ui/tab_modal_confirm_dialog_delegate.h"
      6 
      7 #include "chrome/browser/chrome_notification_types.h"
      8 #include "content/public/browser/navigation_controller.h"
      9 #include "content/public/browser/notification_source.h"
     10 #include "content/public/browser/web_contents.h"
     11 #include "grit/generated_resources.h"
     12 #include "ui/base/l10n/l10n_util.h"
     13 
     14 using content::NavigationController;
     15 using content::WebContents;
     16 
     17 TabModalConfirmDialogDelegate::TabModalConfirmDialogDelegate(
     18     WebContents* web_contents)
     19     : close_delegate_(NULL),
     20       closing_(false) {
     21   NavigationController* controller = &web_contents->GetController();
     22   registrar_.Add(this, content::NOTIFICATION_LOAD_START,
     23                  content::Source<NavigationController>(controller));
     24   registrar_.Add(this, chrome::NOTIFICATION_TAB_CLOSING,
     25                  content::Source<NavigationController>(controller));
     26 }
     27 
     28 TabModalConfirmDialogDelegate::~TabModalConfirmDialogDelegate() {
     29   // If we end up here, the window has been closed, so make sure we don't close
     30   // it again.
     31   close_delegate_ = NULL;
     32   // Make sure everything is cleaned up.
     33   Cancel();
     34 }
     35 
     36 void TabModalConfirmDialogDelegate::Cancel() {
     37   if (closing_)
     38     return;
     39   // Make sure we won't do anything when another action occurs.
     40   closing_ = true;
     41   OnCanceled();
     42   CloseDialog();
     43 }
     44 
     45 void TabModalConfirmDialogDelegate::Accept() {
     46   if (closing_)
     47     return;
     48   // Make sure we won't do anything when another action occurs.
     49   closing_ = true;
     50   OnAccepted();
     51   CloseDialog();
     52 }
     53 
     54 void TabModalConfirmDialogDelegate::LinkClicked(
     55     WindowOpenDisposition disposition) {
     56   if (closing_)
     57     return;
     58   // Make sure we won't do anything when another action occurs.
     59   closing_ = true;
     60   OnLinkClicked(disposition);
     61   CloseDialog();
     62 }
     63 
     64 void TabModalConfirmDialogDelegate::Observe(
     65     int type,
     66     const content::NotificationSource& source,
     67     const content::NotificationDetails& details) {
     68   // Close the dialog if we load a page (because the action might not apply to
     69   // the same page anymore) or if the tab is closed.
     70   if (type == content::NOTIFICATION_LOAD_START ||
     71       type == chrome::NOTIFICATION_TAB_CLOSING) {
     72     Close();
     73   } else {
     74     NOTREACHED();
     75   }
     76 }
     77 
     78 void TabModalConfirmDialogDelegate::Close() {
     79   if (closing_)
     80     return;
     81   // Make sure we won't do anything when another action occurs.
     82   closing_ = true;
     83   OnClosed();
     84   CloseDialog();
     85 }
     86 
     87 gfx::Image* TabModalConfirmDialogDelegate::GetIcon() {
     88   return NULL;
     89 }
     90 
     91 string16 TabModalConfirmDialogDelegate::GetAcceptButtonTitle() {
     92   return l10n_util::GetStringUTF16(IDS_OK);
     93 }
     94 
     95 string16 TabModalConfirmDialogDelegate::GetCancelButtonTitle() {
     96   return l10n_util::GetStringUTF16(IDS_CANCEL);
     97 }
     98 
     99 string16 TabModalConfirmDialogDelegate::GetLinkText() const {
    100   return string16();
    101 }
    102 
    103 const char* TabModalConfirmDialogDelegate::GetAcceptButtonIcon() {
    104   return NULL;
    105 }
    106 
    107 const char* TabModalConfirmDialogDelegate::GetCancelButtonIcon() {
    108   return NULL;
    109 }
    110 
    111 void TabModalConfirmDialogDelegate::OnAccepted() {
    112 }
    113 
    114 void TabModalConfirmDialogDelegate::OnCanceled() {
    115 }
    116 
    117 void TabModalConfirmDialogDelegate::OnLinkClicked(
    118     WindowOpenDisposition disposition) {
    119 }
    120 
    121 void TabModalConfirmDialogDelegate::OnClosed() {
    122 }
    123 
    124 void TabModalConfirmDialogDelegate::CloseDialog() {
    125   if (close_delegate_)
    126     close_delegate_->CloseDialog();
    127 }
    128