WebContent: Added IPC calls for initializing JS console and sending input

Userland/Services/WebContent/WebContentConsoleClient.cpp

@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2021, Brandon Scott <xeon.productions@gmail.com>
+ * Copyright (c) 2020, Hunter Salyer <thefalsehonesty@gmail.com>
+ * 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 "WebContentConsoleClient.h"
+#include <LibJS/Console.h>
+#include <LibJS/Interpreter.h>
+#include <LibJS/MarkupGenerator.h>
+#include <LibJS/Parser.h>
+#include <LibWeb/Bindings/DOMExceptionWrapper.h>
+#include <LibWeb/DOM/DocumentType.h>
+#include <LibWeb/DOM/Text.h>
+#include <LibWeb/DOMTreeModel.h>
+
+namespace WebContent {
+
+void WebContentConsoleClient::handle_input(const String& js_source)
+{
+    auto parser = JS::Parser(JS::Lexer(js_source));
+    auto program = parser.parse_program();
+
+    StringBuilder output_html;
+    if (parser.has_errors()) {
+        auto error = parser.errors()[0];
+        auto hint = error.source_location_hint(js_source);
+        if (!hint.is_empty())
+            output_html.append(String::formatted("<pre>{}</pre>", escape_html_entities(hint)));
+        m_interpreter->vm().throw_exception<JS::SyntaxError>(m_interpreter->global_object(), error.to_string());
+    } else {
+        m_interpreter->run(m_interpreter->global_object(), *program);
+    }
+
+    if (m_interpreter->exception()) {
+        output_html.append("Uncaught exception: ");
+        auto error = m_interpreter->exception()->value();
+        if (error.is_object() && is<Web::Bindings::DOMExceptionWrapper>(error.as_object())) {
+            auto& dom_exception_wrapper = static_cast<Web::Bindings::DOMExceptionWrapper&>(error.as_object());
+            error = JS::Error::create(m_interpreter->global_object(), dom_exception_wrapper.impl().name(), dom_exception_wrapper.impl().message());
+        }
+        output_html.append(JS::MarkupGenerator::html_from_value(error));
+        print_html(output_html.string_view());
+
+        m_interpreter->vm().clear_exception();
+        return;
+    }
+
+    print_html(JS::MarkupGenerator::html_from_value(m_interpreter->vm().last_value()));
+}
+
+void WebContentConsoleClient::print_html(const String& line)
+{
+    m_client.post_message(Messages::WebContentClient::DidJSConsoleOutput("html", line));
+}
+
+void WebContentConsoleClient::clear_output()
+{
+    m_client.post_message(Messages::WebContentClient::DidJSConsoleOutput("clear_output", {}));
+}
+
+JS::Value WebContentConsoleClient::log()
+{
+    print_html(vm().join_arguments());
+    return JS::js_undefined();
+}
+
+JS::Value WebContentConsoleClient::info()
+{
+    StringBuilder html;
+    html.append("<span class=\"info\">");
+    html.append("(i) ");
+    html.append(vm().join_arguments());
+    html.append("</span>");
+    print_html(html.string_view());
+    return JS::js_undefined();
+}
+
+JS::Value WebContentConsoleClient::debug()
+{
+    StringBuilder html;
+    html.append("<span class=\"debug\">");
+    html.append("(d) ");
+    html.append(vm().join_arguments());
+    html.append("</span>");
+    print_html(html.string_view());
+    return JS::js_undefined();
+}
+
+JS::Value WebContentConsoleClient::warn()
+{
+    StringBuilder html;
+    html.append("<span class=\"warn\">");
+    html.append("(w) ");
+    html.append(vm().join_arguments());
+    html.append("</span>");
+    print_html(html.string_view());
+    return JS::js_undefined();
+}
+
+JS::Value WebContentConsoleClient::error()
+{
+    StringBuilder html;
+    html.append("<span class=\"error\">");
+    html.append("(e) ");
+    html.append(vm().join_arguments());
+    html.append("</span>");
+    print_html(html.string_view());
+    return JS::js_undefined();
+}
+
+JS::Value WebContentConsoleClient::clear()
+{
+    clear_output();
+    return JS::js_undefined();
+}
+
+JS::Value WebContentConsoleClient::trace()
+{
+    StringBuilder html;
+    html.append(vm().join_arguments());
+    auto trace = get_trace();
+    for (auto& function_name : trace) {
+        if (function_name.is_empty())
+            function_name = "&lt;anonymous&gt;";
+        html.appendff(" -> {}<br>", function_name);
+    }
+    print_html(html.string_view());
+    return JS::js_undefined();
+}
+
+JS::Value WebContentConsoleClient::count()
+{
+    auto label = vm().argument_count() ? vm().argument(0).to_string_without_side_effects() : "default";
+    auto counter_value = m_console.counter_increment(label);
+    print_html(String::formatted("{}: {}", label, counter_value));
+    return JS::js_undefined();
+}
+
+JS::Value WebContentConsoleClient::count_reset()
+{
+    auto label = vm().argument_count() ? vm().argument(0).to_string_without_side_effects() : "default";
+    if (m_console.counter_reset(label)) {
+        print_html(String::formatted("{}: 0", label));
+    } else {
+        print_html(String::formatted("\"{}\" doesn't have a count", label));
+    }
+    return JS::js_undefined();
+}
+
+}