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https://github.com/LadybirdBrowser/ladybird.git
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fe09f85414
Instead of building the web DOM by hand, we now load an empty document into an OutOfProcessWebView, and then append things to it by sending little snippets of JavaScript to the host process. :^)
110 lines
2.9 KiB
C++
110 lines
2.9 KiB
C++
/*
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* Copyright (c) 2020, Hunter Salyer <thefalsehonesty@gmail.com>
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "ConsoleWidget.h"
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#include <AK/StringBuilder.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/Button.h>
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#include <LibGUI/TextBox.h>
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#include <LibGfx/FontDatabase.h>
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#include <LibJS/MarkupGenerator.h>
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#include <LibJS/SyntaxHighlighter.h>
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namespace Browser {
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ConsoleWidget::ConsoleWidget()
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{
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set_layout<GUI::VerticalBoxLayout>();
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set_fill_with_background_color(true);
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m_output_view = add<Web::OutOfProcessWebView>();
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m_output_view->load("data:text/html,<html></html>");
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auto& bottom_container = add<GUI::Widget>();
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bottom_container.set_layout<GUI::HorizontalBoxLayout>();
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bottom_container.set_fixed_height(22);
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m_input = bottom_container.add<GUI::TextBox>();
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m_input->set_syntax_highlighter(make<JS::SyntaxHighlighter>());
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// FIXME: Syntax Highlighting breaks the cursor's position on non fixed-width fonts.
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m_input->set_font(Gfx::FontDatabase::default_fixed_width_font());
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m_input->set_history_enabled(true);
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m_input->on_return_pressed = [this] {
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auto js_source = m_input->text();
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// FIXME: An is_blank check to check if there is only whitespace would probably be preferable.
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if (js_source.is_empty())
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return;
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m_input->add_current_text_to_history();
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m_input->clear();
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print_source_line(js_source);
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if (on_js_input)
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on_js_input(js_source);
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};
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set_focus_proxy(m_input);
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auto& clear_button = bottom_container.add<GUI::Button>();
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clear_button.set_fixed_size(22, 22);
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clear_button.set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/delete.png"));
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clear_button.set_tooltip("Clear the console output");
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clear_button.on_click = [this](auto) {
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clear_output();
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};
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}
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ConsoleWidget::~ConsoleWidget()
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{
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}
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void ConsoleWidget::handle_js_console_output(const String& method, const String& line)
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{
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if (method == "html") {
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print_html(line);
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} else if (method == "clear") {
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clear_output();
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}
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}
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void ConsoleWidget::print_source_line(const StringView& source)
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{
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StringBuilder html;
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html.append("<span class=\"repl-indicator\">");
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html.append("> ");
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html.append("</span>");
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html.append(JS::MarkupGenerator::html_from_source(source));
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print_html(html.string_view());
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}
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void ConsoleWidget::print_html(StringView const& line)
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{
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StringBuilder builder;
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builder.append(R"~~~(
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var p = document.createElement("p");
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p.innerHTML = ")~~~");
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builder.append_escaped_for_json(line);
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builder.append(R"~~~("
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document.body.appendChild(p);
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)~~~");
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m_output_view->run_javascript(builder.string_view());
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m_output_view->scroll_to_bottom();
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}
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void ConsoleWidget::clear_output()
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{
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m_output_view->run_javascript(R"~~~(
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document.body.innerHTML = "";
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)~~~");
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}
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}
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