ladybird/Ladybird/ConsoleWidget.cpp
Andrew Kaster 506b03740c Ladybird: Move classes and types into the Ladybird namespace
We were super inconsistent about this, with most "new" classes living in
the Ladybird namespace, while "old" ones were in the global namespace,
or even sitting in the Browser namespace.
2023-08-03 09:55:20 +02:00

220 lines
6.5 KiB
C++

/*
* Copyright (c) 2020, Hunter Salyer <thefalsehonesty@gmail.com>
* Copyright (c) 2021-2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "ConsoleWidget.h"
#include "Utilities.h"
#include "WebContentView.h"
#include <AK/StringBuilder.h>
#include <LibJS/MarkupGenerator.h>
#include <QFontDatabase>
#include <QKeyEvent>
#include <QLineEdit>
#include <QPalette>
#include <QPushButton>
#include <QTextEdit>
#include <QVBoxLayout>
namespace Ladybird {
bool is_using_dark_system_theme(QWidget&);
ConsoleWidget::ConsoleWidget()
{
setLayout(new QVBoxLayout);
m_output_view = new WebContentView({}, WebView::EnableCallgrindProfiling::No, WebView::UseJavaScriptBytecode::No, UseLagomNetworking::No);
if (is_using_dark_system_theme(*this))
m_output_view->update_palette(WebContentView::PaletteMode::Dark);
m_output_view->load("data:text/html,<html style=\"font: 10pt monospace;\"></html>"sv);
// Wait until our output WebView is loaded, and then request any messages that occurred before we existed
m_output_view->on_load_finish = [this](auto&) {
if (on_request_messages)
on_request_messages(0);
};
layout()->addWidget(m_output_view);
auto* bottom_container = new QWidget(this);
bottom_container->setLayout(new QHBoxLayout);
layout()->addWidget(bottom_container);
m_input = new ConsoleInputEdit(bottom_container, *this);
m_input->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
bottom_container->layout()->addWidget(m_input);
setFocusProxy(m_input);
auto* clear_button = new QPushButton(bottom_container);
bottom_container->layout()->addWidget(clear_button);
clear_button->setFixedSize(22, 22);
clear_button->setText("X");
clear_button->setToolTip("Clear the console output");
QObject::connect(clear_button, &QPushButton::pressed, [this] {
clear_output();
});
m_input->setFocus();
}
void ConsoleWidget::request_console_messages()
{
VERIFY(!m_waiting_for_messages);
VERIFY(on_request_messages);
on_request_messages(m_highest_received_message_index + 1);
m_waiting_for_messages = true;
}
void ConsoleWidget::notify_about_new_console_message(i32 message_index)
{
if (message_index <= m_highest_received_message_index) {
dbgln("Notified about console message we already have");
return;
}
if (message_index <= m_highest_notified_message_index) {
dbgln("Notified about console message we're already aware of");
return;
}
m_highest_notified_message_index = message_index;
if (!m_waiting_for_messages)
request_console_messages();
}
void ConsoleWidget::handle_console_messages(i32 start_index, Vector<DeprecatedString> const& message_types, Vector<DeprecatedString> const& messages)
{
i32 end_index = start_index + message_types.size() - 1;
if (end_index <= m_highest_received_message_index) {
dbgln("Received old console messages");
return;
}
for (size_t i = 0; i < message_types.size(); i++) {
auto& type = message_types[i];
auto& message = messages[i];
if (type == "html") {
print_html(message);
} else if (type == "clear") {
clear_output();
} else if (type == "group") {
// FIXME: Implement.
} else if (type == "groupCollapsed") {
// FIXME: Implement.
} else if (type == "groupEnd") {
// FIXME: Implement.
} else {
VERIFY_NOT_REACHED();
}
}
m_highest_received_message_index = end_index;
m_waiting_for_messages = false;
if (m_highest_received_message_index < m_highest_notified_message_index)
request_console_messages();
}
void ConsoleWidget::print_source_line(StringView source)
{
StringBuilder html;
html.append("<span class=\"repl-indicator\">"sv);
html.append("&gt; "sv);
html.append("</span>"sv);
html.append(JS::MarkupGenerator::html_from_source(source).release_value_but_fixme_should_propagate_errors());
print_html(html.string_view());
}
void ConsoleWidget::print_html(StringView line)
{
StringBuilder builder;
builder.append(R"~~~(
var p = document.createElement("p");
p.innerHTML = ")~~~"sv);
builder.append_escaped_for_json(line);
builder.append(R"~~~("
document.body.appendChild(p);
)~~~"sv);
// FIXME: It should be sufficient to scrollTo a y value of document.documentElement.offsetHeight,
// but due to an unknown bug offsetHeight seems to not be properly updated after spamming
// a lot of document changes.
//
// The setTimeout makes the scrollTo async and allows the DOM to be updated.
builder.append("setTimeout(function() { window.scrollTo(0, 1_000_000_000); }, 0);"sv);
m_output_view->run_javascript(builder.string_view());
}
void ConsoleWidget::clear_output()
{
m_output_view->run_javascript(R"~~~(
document.body.innerHTML = "";
)~~~"sv);
}
void ConsoleWidget::reset()
{
clear_output();
m_highest_notified_message_index = -1;
m_highest_received_message_index = -1;
m_waiting_for_messages = false;
}
void ConsoleInputEdit::keyPressEvent(QKeyEvent* event)
{
switch (event->key()) {
case Qt::Key_Down: {
if (m_history.is_empty())
break;
auto last_index = m_history.size() - 1;
if (m_history_index < last_index) {
m_history_index++;
setText(qstring_from_ak_deprecated_string(m_history.at(m_history_index)));
} else if (m_history_index == last_index) {
m_history_index++;
clear();
}
break;
}
case Qt::Key_Up:
if (m_history_index > 0) {
m_history_index--;
setText(qstring_from_ak_deprecated_string(m_history.at(m_history_index)));
}
break;
case Qt::Key_Return: {
auto js_source = ak_deprecated_string_from_qstring(text());
if (js_source.is_whitespace())
return;
if (m_history.is_empty() || m_history.last() != js_source) {
m_history.append(js_source);
m_history_index = m_history.size();
}
clear();
m_console_widget.print_source_line(js_source);
if (m_console_widget.on_js_input)
m_console_widget.on_js_input(js_source);
break;
}
default:
QLineEdit::keyPressEvent(event);
}
}
}