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/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Julius Heijmen <julius.heijmen@gmail.com>
* Copyright (c) 2022, kleines Filmröllchen <filmroellchen@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/URL.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibCore/System.h>
#include <LibDesktop/Launcher.h>
#include <LibGUI/Application.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/GML/AutocompleteProvider.h>
#include <LibGUI/GML/Formatter.h>
#include <LibGUI/GML/Lexer.h>
#include <LibGUI/GML/SyntaxHighlighter.h>
#include <LibGUI/Icon.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Painter.h>
#include <LibGUI/RegularEditingEngine.h>
#include <LibGUI/Splitter.h>
#include <LibGUI/TextEditor.h>
#include <LibGUI/VimEditingEngine.h>
#include <LibGUI/Window.h>
#include <LibMain/Main.h>
#include <string.h>
#include <unistd.h>
namespace {
class UnregisteredWidget final : public GUI::Widget {
C_OBJECT(UnregisteredWidget);
private:
UnregisteredWidget(String const& class_name);
virtual void paint_event(GUI::PaintEvent& event) override;
String m_text;
};
UnregisteredWidget::UnregisteredWidget(String const& class_name)
{
StringBuilder builder;
builder.append(class_name);
builder.append("\nnot registered");
m_text = builder.to_string();
}
void UnregisteredWidget::paint_event(GUI::PaintEvent& event)
{
GUI::Painter painter(*this);
painter.add_clip_rect(event.rect());
painter.fill_rect(event.rect(), Gfx::Color::DarkRed);
painter.draw_text(rect(), m_text, Gfx::TextAlignment::Center, Color::White);
}
}
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio thread recvfd sendfd cpath rpath wpath unix"));
auto app = TRY(GUI::Application::try_create(arguments));
TRY(Desktop::Launcher::add_allowed_handler_with_only_specific_urls("/bin/Help", { URL::create_with_file_protocol("/usr/share/man/man1/Playground.md") }));
TRY(Desktop::Launcher::seal_allowlist());
TRY(Core::System::pledge("stdio thread recvfd sendfd rpath cpath wpath"));
char const* path = nullptr;
Core::ArgsParser args_parser;
args_parser.add_positional_argument(path, "GML file to edit", "file", Core::ArgsParser::Required::No);
args_parser.parse(arguments);
auto app_icon = TRY(GUI::Icon::try_create_default_icon("app-playground"));
auto window = TRY(GUI::Window::try_create());
window->set_title("GML Playground");
window->set_icon(app_icon.bitmap_for_size(16));
window->resize(800, 600);
auto splitter = TRY(window->try_set_main_widget<GUI::HorizontalSplitter>());
auto editor = TRY(splitter->try_add<GUI::TextEditor>());
auto preview = TRY(splitter->try_add<GUI::Frame>());
editor->set_syntax_highlighter(make<GUI::GML::SyntaxHighlighter>());
editor->set_autocomplete_provider(make<GUI::GML::AutocompleteProvider>());
editor->set_should_autocomplete_automatically(true);
editor->set_automatic_indentation_enabled(true);
editor->set_ruler_visible(true);
String file_path;
auto update_title = [&] {
StringBuilder builder;
if (file_path.is_empty())
builder.append("Untitled");
else
builder.append(file_path);
if (window->is_modified())
builder.append("[*]");
builder.append(" - GML Playground");
window->set_title(builder.to_string());
};
if (String(path).is_empty()) {
editor->set_text(R"~~~(@GUI::Frame {
layout: @GUI::VerticalBoxLayout {
}
// Now add some widgets!
}
)~~~");
editor->set_cursor(4, 28); // after "...widgets!"
update_title();
} else {
auto file = Core::File::construct(path);
if (!file->open(Core::OpenMode::ReadOnly)) {
GUI::MessageBox::show(window, String::formatted("Opening \"{}\" failed: {}", path, strerror(errno)), "Error", GUI::MessageBox::Type::Error);
return 1;
}
if (file->is_device()) {
GUI::MessageBox::show(window, String::formatted("Opening \"{}\" failed: Can't open device files", path), "Error", GUI::MessageBox::Type::Error);
return 1;
}
file_path = path;
editor->set_text(file->read_all());
update_title();
}
editor->on_change = [&] {
preview->remove_all_children();
preview->load_from_gml(editor->text(), [](const String& class_name) -> RefPtr<Core::Object> {
return UnregisteredWidget::construct(class_name);
});
};
editor->on_modified_change = [&](bool modified) {
window->set_modified(modified);
update_title();
};
auto file_menu = TRY(window->try_add_menu("&File"));
auto save_as_action = GUI::CommonActions::make_save_as_action([&](auto&) {
Optional<String> new_save_path = GUI::FilePicker::get_save_filepath(window, "Untitled", "gml");
if (!new_save_path.has_value())
return;
if (!editor->write_to_file(new_save_path.value())) {
GUI::MessageBox::show(window, "Unable to save file.\n", "Error", GUI::MessageBox::Type::Error);
return;
}
file_path = new_save_path.value();
update_title();
});
auto save_action = GUI::CommonActions::make_save_action([&](auto&) {
if (!file_path.is_empty()) {
if (!editor->write_to_file(file_path)) {
GUI::MessageBox::show(window, "Unable to save file.\n", "Error", GUI::MessageBox::Type::Error);
return;
}
update_title();
return;
}
save_as_action->activate();
});
TRY(file_menu->try_add_action(GUI::CommonActions::make_open_action([&](auto&) {
if (window->is_modified()) {
auto result = GUI::MessageBox::ask_about_unsaved_changes(window, file_path, editor->document().undo_stack().last_unmodified_timestamp());
if (result == GUI::MessageBox::ExecYes)
save_action->activate();
if (result != GUI::MessageBox::ExecNo && window->is_modified())
return;
}
Optional<String> open_path = GUI::FilePicker::get_open_filepath(window);
if (!open_path.has_value())
return;
auto file = Core::File::construct(open_path.value());
if (!file->open(Core::OpenMode::ReadOnly) && file->error() != ENOENT) {
GUI::MessageBox::show(window, String::formatted("Opening \"{}\" failed: {}", open_path.value(), strerror(errno)), "Error", GUI::MessageBox::Type::Error);
return;
}
if (file->is_device()) {
GUI::MessageBox::show(window, String::formatted("Opening \"{}\" failed: Can't open device files", open_path.value()), "Error", GUI::MessageBox::Type::Error);
return;
}
file_path = open_path.value();
editor->set_text(file->read_all());
editor->set_focus(true);
update_title();
})));
TRY(file_menu->try_add_action(save_action));
TRY(file_menu->try_add_action(save_as_action));
TRY(file_menu->try_add_separator());
TRY(file_menu->try_add_action(GUI::CommonActions::make_quit_action([&](auto&) {
if (window->on_close_request() == GUI::Window::CloseRequestDecision::Close)
app->quit();
})));
auto edit_menu = TRY(window->try_add_menu("&Edit"));
TRY(edit_menu->try_add_action(editor->undo_action()));
TRY(edit_menu->try_add_action(editor->redo_action()));
TRY(edit_menu->try_add_separator());
TRY(edit_menu->try_add_action(editor->cut_action()));
TRY(edit_menu->try_add_action(editor->copy_action()));
TRY(edit_menu->try_add_action(editor->paste_action()));
TRY(edit_menu->try_add_separator());
TRY(edit_menu->try_add_action(editor->select_all_action()));
TRY(edit_menu->try_add_action(editor->go_to_line_action()));
TRY(edit_menu->try_add_separator());
TRY(edit_menu->try_add_action(GUI::Action::create("&Format GML", { Mod_Ctrl | Mod_Shift, Key_I }, [&](auto&) {
auto formatted_gml_or_error = GUI::GML::format_gml(editor->text());
if (!formatted_gml_or_error.is_error()) {
editor->set_text(formatted_gml_or_error.release_value());
} else {
GUI::MessageBox::show(
window,
String::formatted("GML could not be formatted: {}", formatted_gml_or_error.error()),
"Error",
GUI::MessageBox::Type::Error);
}
})));
auto vim_emulation_setting_action = GUI::Action::create_checkable("&Vim Emulation", { Mod_Ctrl | Mod_Shift | Mod_Alt, Key_V }, [&](auto& action) {
if (action.is_checked())
editor->set_editing_engine(make<GUI::VimEditingEngine>());
else
editor->set_editing_engine(make<GUI::RegularEditingEngine>());
});
vim_emulation_setting_action->set_checked(false);
TRY(edit_menu->try_add_action(vim_emulation_setting_action));
auto help_menu = TRY(window->try_add_menu("&Help"));
TRY(help_menu->try_add_action(GUI::CommonActions::make_help_action([](auto&) {
Desktop::Launcher::open(URL::create_with_file_protocol("/usr/share/man/man1/Playground.md"), "/bin/Help");
})));
TRY(help_menu->try_add_action(GUI::CommonActions::make_about_action("GML Playground", app_icon, window)));
window->on_close_request = [&] {
if (!window->is_modified())
return GUI::Window::CloseRequestDecision::Close;
auto result = GUI::MessageBox::ask_about_unsaved_changes(window, file_path, editor->document().undo_stack().last_unmodified_timestamp());
if (result == GUI::MessageBox::ExecYes) {
save_action->activate();
if (window->is_modified())
return GUI::Window::CloseRequestDecision::StayOpen;
return GUI::Window::CloseRequestDecision::Close;
}
if (result == GUI::MessageBox::ExecNo)
return GUI::Window::CloseRequestDecision::Close;
return GUI::Window::CloseRequestDecision::StayOpen;
};
window->show();
return app->exec();
}
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