ladybird/Userland/Libraries/LibWeb/DumpLayoutTree/main.cpp

/*
 * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <LibCore/ArgsParser.h>
#include <LibGUI/Application.h>
#include <LibGUI/Window.h>
#include <LibWeb/Dump.h>
#include <LibWeb/InProcessWebView.h>
#include <LibWeb/Layout/InitialContainingBlockBox.h>
#include <unistd.h>

int main(int argc, char** argv)
{
    auto app = GUI::Application::construct(argc, argv);
    auto window = GUI::Window::construct();
    window->set_title("DumpLayoutTree");
    window->resize(800, 600);
    window->show();
    auto& web_view = window->set_main_widget<Web::InProcessWebView>();
    web_view.load(URL::create_with_file_protocol(argv[1]));
    web_view.on_load_finish = [&](auto&) {
        auto* document = web_view.document();
        if (!document) {
            warnln("No document.");
            _exit(1);
        }
        auto* layout_root = document->layout_node();
        if (!layout_root) {
            warnln("No layout tree.");
            _exit(1);
        }
        StringBuilder builder;
        Web::dump_tree(builder, *layout_root);
        write(STDOUT_FILENO, builder.string_view().characters_without_null_termination(), builder.length());
        _exit(0);
    };
    return app->exec();
}