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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/javascript_dialogs/app_modal_dialog_controller.h"
#include <utility>
#include "build/build_config.h"
#include "components/javascript_dialogs/app_modal_dialog_manager.h"
#include "components/javascript_dialogs/app_modal_dialog_queue.h"
#include "components/javascript_dialogs/app_modal_dialog_view.h"
#include "ui/gfx/text_elider.h"
namespace javascript_dialogs {
namespace {
AppModalDialogObserver* app_modal_dialog_observer = nullptr;
// Control maximum sizes of various texts passed to us from javascript.
#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_APPLE)
// 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;
std::u16string EnforceMaxTextSize(const std::u16string& in_string) {
std::u16string out_string;
gfx::ElideRectangleString(in_string, kMessageTextMaxRows, kMessageTextMaxCols,
false, &out_string);
return out_string;
}
std::u16string EnforceMaxPromptSize(const std::u16string& in_string) {
std::u16string out_string;
gfx::ElideRectangleString(in_string, kDefaultPromptMaxRows,
kDefaultPromptMaxCols, false, &out_string);
return out_string;
}
#else
// One-dimensional eliding. Trust the window system to break the string
// appropriately, but limit its overall length to something reasonable.
const size_t kMessageTextMaxSize = 2000;
const size_t kDefaultPromptMaxSize = 2000;
std::u16string EnforceMaxTextSize(const std::u16string& in_string) {
std::u16string out_string;
gfx::ElideString(in_string, kMessageTextMaxSize, &out_string);
return out_string;
}
std::u16string EnforceMaxPromptSize(const std::u16string& in_string) {
std::u16string out_string;
gfx::ElideString(in_string, kDefaultPromptMaxSize, &out_string);
return out_string;
}
#endif
} // namespace
ChromeJavaScriptDialogExtraData::ChromeJavaScriptDialogExtraData()
: has_already_shown_a_dialog_(false),
suppress_javascript_messages_(false) {}
AppModalDialogController::AppModalDialogController(
content::WebContents* web_contents,
ExtraDataMap* extra_data_map,
const std::u16string& title,
content::JavaScriptDialogType javascript_dialog_type,
const std::u16string& message_text,
const std::u16string& default_prompt_text,
bool display_suppress_checkbox,
bool is_before_unload_dialog,
bool is_reload,
content::JavaScriptDialogManager::DialogClosedCallback callback)
: content::WebContentsObserver(web_contents),
title_(title),
extra_data_map_(extra_data_map),
javascript_dialog_type_(javascript_dialog_type),
message_text_(EnforceMaxTextSize(message_text)),
default_prompt_text_(EnforceMaxPromptSize(default_prompt_text)),
display_suppress_checkbox_(display_suppress_checkbox),
is_before_unload_dialog_(is_before_unload_dialog),
is_reload_(is_reload),
callback_(std::move(callback)),
use_override_prompt_text_(false) {}
AppModalDialogController::~AppModalDialogController() {
CompleteDialog();
}
void AppModalDialogController::ShowModalDialog() {
view_ = AppModalDialogManager::GetInstance()->view_factory()->Run(this);
view_->ShowAppModalDialog();
if (app_modal_dialog_observer)
app_modal_dialog_observer->Notify(this);
}
void AppModalDialogController::ActivateModalDialog() {
DCHECK(view_);
view_->ActivateAppModalDialog();
}
void AppModalDialogController::CloseModalDialog() {
DCHECK(view_);
view_->CloseAppModalDialog();
}
void AppModalDialogController::CompleteDialog() {
// If |view_| is non-null, then |this| is the active dialog and the next one
// should be shown. Otherwise, |this| was never shown.
if (view_) {
view_ = nullptr;
AppModalDialogQueue::GetInstance()->ShowNextDialog();
} else {
DCHECK(!valid_);
}
}
bool AppModalDialogController::IsValid() {
return valid_;
}
void AppModalDialogController::Invalidate() {
if (!valid_)
return;
valid_ = false;
CallDialogClosedCallback(false, std::u16string());
if (view_)
CloseModalDialog();
}
void AppModalDialogController::OnCancel(bool suppress_js_messages) {
// 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, std::u16string(), suppress_js_messages);
}
void AppModalDialogController::OnAccept(const std::u16string& prompt_text,
bool suppress_js_messages) {
std::u16string 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 AppModalDialogController::OnClose() {
NotifyDelegate(false, std::u16string(), false);
}
void AppModalDialogController::SetOverridePromptText(
const std::u16string& override_prompt_text) {
override_prompt_text_ = override_prompt_text;
use_override_prompt_text_ = true;
}
void AppModalDialogController::WebContentsDestroyed() {
Invalidate();
}
void AppModalDialogController::NotifyDelegate(bool success,
const std::u16string& user_input,
bool suppress_js_messages) {
if (!valid_)
return;
CallDialogClosedCallback(success, user_input);
// The close callback above may delete web_contents_, thus removing the extra
// data from the map owned by ::AppModalDialogManager. Make sure
// to only use the data if still present. http://crbug.com/236476
if (auto* contents = web_contents()) {
auto extra_data = extra_data_map_->find(contents);
if (extra_data != extra_data_map_->end()) {
extra_data->second.has_already_shown_a_dialog_ = true;
extra_data->second.suppress_javascript_messages_ = suppress_js_messages;
}
}
// On Views, we can end up coming through this code path twice :(.
// See crbug.com/63732.
valid_ = false;
}
void AppModalDialogController::CallDialogClosedCallback(
bool success,
const std::u16string& user_input) {
if (!callback_.is_null())
std::move(callback_).Run(success, user_input);
}
AppModalDialogObserver::AppModalDialogObserver() {
DCHECK(!app_modal_dialog_observer);
app_modal_dialog_observer = this;
}
AppModalDialogObserver::~AppModalDialogObserver() {
DCHECK(app_modal_dialog_observer);
app_modal_dialog_observer = nullptr;
}
} // namespace javascript_dialogs
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