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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/app_modal_dialog.h"
#include "chrome/browser/app_modal_dialog_queue.h"
#include "chrome/browser/extensions/extension_host.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/common/notification_service.h"
#include "chrome/common/notification_type.h"
#include "ipc/ipc_message.h"
AppModalDialog::AppModalDialog(JavaScriptMessageBoxClient* client,
const std::wstring& title,
int dialog_flags,
const std::wstring& message_text,
const std::wstring& default_prompt_text,
bool display_suppress_checkbox,
bool is_before_unload_dialog,
IPC::Message* reply_msg)
: dialog_(NULL),
client_(client),
tab_contents_(client_->AsTabContents()),
extension_host_(client_->AsExtensionHost()),
skip_this_dialog_(false),
title_(title),
dialog_flags_(dialog_flags),
message_text_(message_text),
default_prompt_text_(default_prompt_text),
display_suppress_checkbox_(display_suppress_checkbox),
is_before_unload_dialog_(is_before_unload_dialog),
reply_msg_(reply_msg) {
InitNotifications();
DCHECK((tab_contents_ != NULL) != (extension_host_ != NULL));
}
void AppModalDialog::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (skip_this_dialog_)
return;
if (NotificationType::EXTENSION_HOST_DESTROYED == type &&
Details<ExtensionHost>(extension_host_) != details)
return;
// If we reach here, we know the notification is relevant to us, either
// because we're only observing applicable sources or because we passed the
// check above. Both of those indicate that we should ignore this dialog.
// Also clear the client, since it's now invalid.
skip_this_dialog_ = true;
client_ = NULL;
CloseModalDialog();
}
void AppModalDialog::InitNotifications() {
// Make sure we get relevant navigation notifications so we know when our
// parent contents will disappear or navigate to a different page.
if (tab_contents_) {
registrar_.Add(this, NotificationType::NAV_ENTRY_COMMITTED,
Source<NavigationController>(&tab_contents_->controller()));
registrar_.Add(this, NotificationType::TAB_CONTENTS_DESTROYED,
Source<TabContents>(tab_contents_));
} else if (extension_host_) {
// EXTENSION_HOST_DESTROYED uses the Profile as its source, but we care
// about the ExtensionHost (which is passed in the details).
registrar_.Add(this, NotificationType::EXTENSION_HOST_DESTROYED,
NotificationService::AllSources());
} else {
NOTREACHED();
}
}
void AppModalDialog::ShowModalDialog() {
// If the TabContents or ExtensionHost that created this dialog navigated
// away or was destroyed before this dialog became visible, simply show the
// next dialog if any.
if (skip_this_dialog_) {
Singleton<AppModalDialogQueue>()->ShowNextDialog();
delete this;
return;
}
if (tab_contents_)
tab_contents_->Activate();
CreateAndShowDialog();
NotificationService::current()->Notify(
NotificationType::APP_MODAL_DIALOG_SHOWN,
Source<AppModalDialog>(this),
NotificationService::NoDetails());
}
void AppModalDialog::OnCancel() {
// We need to do this before WM_DESTROY (WindowClosing()) as any parent frame
// will receive its activation messages before this dialog receives
// WM_DESTROY. The parent frame would then try to activate any modal dialogs
// that were still open in the ModalDialogQueue, which would send activation
// back to this one. The framework should be improved to handle this, so this
// is a temporary workaround.
Singleton<AppModalDialogQueue>()->ShowNextDialog();
if (!skip_this_dialog_) {
client_->OnMessageBoxClosed(reply_msg_, false, std::wstring());
}
Cleanup();
}
void AppModalDialog::OnAccept(const std::wstring& prompt_text,
bool suppress_js_messages) {
Singleton<AppModalDialogQueue>()->ShowNextDialog();
if (!skip_this_dialog_) {
client_->OnMessageBoxClosed(reply_msg_, true, prompt_text);
if (suppress_js_messages)
client_->SetSuppressMessageBoxes(true);
}
Cleanup();
}
void AppModalDialog::OnClose() {
Cleanup();
}
void AppModalDialog::Cleanup() {
if (skip_this_dialog_) {
// We can't use the client_, because we might be in the process of
// destroying it.
if (tab_contents_)
tab_contents_->OnMessageBoxClosed(reply_msg_, false, L"");
else if (extension_host_)
extension_host_->OnMessageBoxClosed(reply_msg_, false, L"");
else
NOTREACHED();
}
NotificationService::current()->Notify(
NotificationType::APP_MODAL_DIALOG_CLOSED,
Source<AppModalDialog>(this),
NotificationService::NoDetails());
}
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