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// Copyright (c) 2011 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/ui/app_modal_dialogs/js_modal_dialog.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/browser_shutdown.h"
#include "chrome/browser/extensions/extension_host.h"
#include "chrome/browser/ui/app_modal_dialogs/native_app_modal_dialog.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/common/notification_service.h"
#include "content/common/notification_type.h"
#include "ui/base/text/text_elider.h"
namespace {
// Control maximum sizes of various texts passed to us from javascript.
#if defined(OS_POSIX) && !defined(OS_MACOSX)
// Two-dimensional eliding. Reformat the text of the message dialog
// inserting line breaks because otherwise a single long line can overflow
// the message dialog (and crash/hang the GTK, depending on the version).
const int kMessageTextMaxRows = 32;
const int kMessageTextMaxCols = 132;
const int kDefaultPromptMaxRows = 24;
const int kDefaultPromptMaxCols = 132;
void EnforceMaxTextSize(const string16& in_string, string16* out_string) {
ui::ElideRectangleString(in_string, kMessageTextMaxRows,
kMessageTextMaxCols, false, out_string);
}
void EnforceMaxPromptSize(const string16& in_string, string16* out_string) {
ui::ElideRectangleString(in_string, kDefaultPromptMaxRows,
kDefaultPromptMaxCols, false, out_string);
}
#else
// One-dimensional eliding. Trust the window system to break the string
// appropriately, but limit its overall length to something reasonable.
const int kMessageTextMaxSize = 3000;
const int kDefaultPromptMaxSize = 2000;
void EnforceMaxTextSize(const string16& in_string, string16* out_string) {
ui::ElideString(in_string, kMessageTextMaxSize, out_string);
}
void EnforceMaxPromptSize(const string16& in_string, string16* out_string) {
ui::ElideString(in_string, kDefaultPromptMaxSize, out_string);
}
#endif
} // namespace
ChromeJavaScriptDialogExtraData::ChromeJavaScriptDialogExtraData()
: suppress_javascript_messages_(false) {
}
JavaScriptAppModalDialog::JavaScriptAppModalDialog(
content::JavaScriptDialogDelegate* delegate,
ChromeJavaScriptDialogExtraData* extra_data,
const string16& title,
int dialog_flags,
const string16& message_text,
const string16& default_prompt_text,
bool display_suppress_checkbox,
bool is_before_unload_dialog,
IPC::Message* reply_msg)
: AppModalDialog(delegate->AsTabContents(), title),
delegate_(delegate),
extra_data_(extra_data),
extension_host_(delegate->AsExtensionHost()),
dialog_flags_(dialog_flags),
display_suppress_checkbox_(display_suppress_checkbox),
is_before_unload_dialog_(is_before_unload_dialog),
reply_msg_(reply_msg),
use_override_prompt_text_(false) {
EnforceMaxTextSize(message_text, &message_text_);
EnforceMaxPromptSize(default_prompt_text, &default_prompt_text_);
DCHECK((tab_contents_ != NULL) != (extension_host_ != NULL));
InitNotifications();
}
JavaScriptAppModalDialog::~JavaScriptAppModalDialog() {
}
NativeAppModalDialog* JavaScriptAppModalDialog::CreateNativeDialog() {
gfx::NativeWindow parent_window = delegate_->GetDialogRootWindow();
return NativeAppModalDialog::CreateNativeJavaScriptPrompt(this,
parent_window);
}
bool JavaScriptAppModalDialog::IsJavaScriptModalDialog() {
return true;
}
void JavaScriptAppModalDialog::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 delegate, since it's now invalid.
skip_this_dialog_ = true;
delegate_ = NULL;
if (native_dialog_)
CloseModalDialog();
}
void JavaScriptAppModalDialog::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 JavaScriptAppModalDialog::OnCancel(bool suppress_js_messages) {
// If we are shutting down and this is an onbeforeunload dialog, cancel the
// shutdown.
if (is_before_unload_dialog_)
browser_shutdown::SetTryingToQuit(false);
// 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.
CompleteDialog();
NotifyDelegate(false, string16(), suppress_js_messages);
}
void JavaScriptAppModalDialog::OnAccept(const string16& prompt_text,
bool suppress_js_messages) {
string16 prompt_text_to_use = prompt_text;
// This is only for testing.
if (use_override_prompt_text_)
prompt_text_to_use = override_prompt_text_;
CompleteDialog();
NotifyDelegate(true, prompt_text_to_use, suppress_js_messages);
}
void JavaScriptAppModalDialog::OnClose() {
NotifyDelegate(false, string16(), false);
}
void JavaScriptAppModalDialog::SetOverridePromptText(
const string16& override_prompt_text) {
override_prompt_text_ = override_prompt_text;
use_override_prompt_text_ = true;
}
void JavaScriptAppModalDialog::NotifyDelegate(bool success,
const string16& user_input,
bool suppress_js_messages) {
if (skip_this_dialog_)
return;
delegate_->OnDialogClosed(reply_msg_, success, user_input);
extra_data_->last_javascript_message_dismissal_ = base::TimeTicks::Now();
extra_data_->suppress_javascript_messages_ = suppress_js_messages;
// On Views, we can end up coming through this code path twice :(.
// See crbug.com/63732.
skip_this_dialog_ = true;
}
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