Ladybird: Support multiple browser windows in Qt chrome

This also moves the ownership of the TaskManger to the Application.

Ladybird/Qt/Application.cpp

@@ -6,6 +6,7 @@
 
 #include "Application.h"
 #include "StringUtils.h"
+#include "TaskManagerWindow.h"
 #include <LibWebView/URL.h>
 #include <QFileOpenEvent>
 
@@ -16,6 +17,11 @@ Application::Application(int& argc, char** argv)
 {
 }
 
+Application::~Application()
+{
+    close_task_manager_window();
+}
+
 bool Application::event(QEvent* event)
 {
     switch (event->type()) {
@@ -37,4 +43,33 @@ bool Application::event(QEvent* event)
     return QApplication::event(event);
 }
 
+void Application::show_task_manager_window()
+{
+    if (!m_task_manager_window) {
+        m_task_manager_window = new TaskManagerWindow(nullptr);
+    }
+    m_task_manager_window->show();
+    m_task_manager_window->activateWindow();
+    m_task_manager_window->raise();
+}
+
+void Application::close_task_manager_window()
+{
+    if (m_task_manager_window) {
+        m_task_manager_window->close();
+        delete m_task_manager_window;
+        m_task_manager_window = nullptr;
+    }
+}
+
+BrowserWindow& Application::new_window(Vector<URL::URL> const& initial_urls, WebView::CookieJar& cookie_jar, WebContentOptions const& web_content_options, StringView webdriver_content_ipc_path)
+{
+    auto* window = new BrowserWindow(initial_urls, cookie_jar, web_content_options, webdriver_content_ipc_path);
+    set_active_window(*window);
+    window->show();
+    window->activateWindow();
+    window->raise();
+    return *window;
+}
+
 }

Ladybird/Qt/Application.h

@@ -7,6 +7,8 @@
 #pragma once
 
 #include <AK/Function.h>
+#include <AK/HashTable.h>
+#include <Ladybird/Qt/BrowserWindow.h>
 #include <LibProtocol/RequestClient.h>
 #include <LibURL/URL.h>
 #include <QApplication>
@@ -18,11 +20,24 @@ class Application : public QApplication {
 
 public:
     Application(int& argc, char** argv);
+    virtual ~Application() override;
 
     virtual bool event(QEvent* event) override;
 
     Function<void(URL::URL)> on_open_file;
     RefPtr<Protocol::RequestClient> request_server_client;
+
+    BrowserWindow& new_window(Vector<URL::URL> const& initial_urls, WebView::CookieJar&, WebContentOptions const&, StringView webdriver_content_ipc_path);
+
+    void show_task_manager_window();
+    void close_task_manager_window();
+
+    BrowserWindow& active_window() { return *m_active_window; }
+    void set_active_window(BrowserWindow& w) { m_active_window = &w; }
+
+private:
+    TaskManagerWindow* m_task_manager_window { nullptr };
+    BrowserWindow* m_active_window { nullptr };
 };
 
 }

Ladybird/Qt/BrowserWindow.cpp

@@ -8,6 +8,7 @@
  */
 
 #include "BrowserWindow.h"
+#include "Application.h"
 #include "Icon.h"
 #include "Settings.h"
 #include "SettingsDialog.h"
@@ -82,6 +83,10 @@ BrowserWindow::BrowserWindow(Vector<URL::URL> const& initial_urls, WebView::Cook
     m_new_tab_action->setShortcuts(QKeySequence::keyBindings(QKeySequence::StandardKey::AddTab));
     menu->addAction(m_new_tab_action);
 
+    m_new_window_action = new QAction("New &Window", this);
+    m_new_window_action->setShortcuts(QKeySequence::keyBindings(QKeySequence::StandardKey::New));
+    menu->addAction(m_new_window_action);
+
     auto* close_current_tab_action = new QAction("&Close Current Tab", this);
     close_current_tab_action->setIcon(load_icon_from_uri("resource://icons/16x16/close-tab.png"sv));
     close_current_tab_action->setShortcuts(QKeySequence::keyBindings(QKeySequence::StandardKey::Close));
@@ -213,8 +218,8 @@ BrowserWindow::BrowserWindow(Vector<URL::URL> const& initial_urls, WebView::Cook
     task_manager_action->setIcon(load_icon_from_uri("resource://icons/16x16/app-system-monitor.png"sv));
     task_manager_action->setShortcuts({ QKeySequence("Ctrl+Shift+M") });
     inspect_menu->addAction(task_manager_action);
-    QObject::connect(task_manager_action, &QAction::triggered, this, [this] {
-        show_task_manager_window();
+    QObject::connect(task_manager_action, &QAction::triggered, this, [] {
+        static_cast<Ladybird::Application*>(QApplication::instance())->show_task_manager_window();
     });
 
     auto* debug_menu = menuBar()->addMenu("&Debug");
@@ -391,6 +396,10 @@ BrowserWindow::BrowserWindow(Vector<URL::URL> const& initial_urls, WebView::Cook
     QObject::connect(m_new_tab_action, &QAction::triggered, this, [this] {
         new_tab_from_url(ak_url_from_qstring(Settings::the()->new_tab_page()), Web::HTML::ActivateTab::Yes);
     });
+    QObject::connect(m_new_window_action, &QAction::triggered, this, [this] {
+        auto initial_urls = Vector<URL::URL> { ak_url_from_qstring(Settings::the()->new_tab_page()) };
+        (void)static_cast<Ladybird::Application*>(QApplication::instance())->new_window(initial_urls, m_cookie_jar, m_web_content_options, m_webdriver_content_ipc_path);
+    });
     QObject::connect(open_file_action, &QAction::triggered, this, &BrowserWindow::open_file);
     QObject::connect(settings_action, &QAction::triggered, this, [this] {
         if (!m_settings_dialog) {
@@ -864,6 +873,9 @@ bool BrowserWindow::event(QEvent* event)
     }
 #endif
 
+    if (event->type() == QEvent::WindowActivate)
+        static_cast<Ladybird::Application*>(QApplication::instance())->set_active_window(*this);
+
     return QMainWindow::event(event);
 }
 
@@ -917,23 +929,9 @@ void BrowserWindow::closeEvent(QCloseEvent* event)
     Settings::the()->set_last_size(size());
     Settings::the()->set_is_maximized(isMaximized());
 
+    QObject::deleteLater();
+
     QMainWindow::closeEvent(event);
 }
 
-void BrowserWindow::show_task_manager_window()
-{
-    if (!m_task_manager_window) {
-        m_task_manager_window = new TaskManagerWindow(this);
-    }
-    m_task_manager_window->show();
-    m_task_manager_window->activateWindow();
-    m_task_manager_window->raise();
-}
-
-void BrowserWindow::close_task_manager_window()
-{
-    if (m_task_manager_window)
-        m_task_manager_window->close();
-}
-
 }

Ladybird/Qt/BrowserWindow.h

@@ -57,6 +57,11 @@ public:
         return *m_new_tab_action;
     }
 
+    QAction& new_window_action()
+    {
+        return *m_new_window_action;
+    }
+
     QAction& copy_selection_action()
     {
         return *m_copy_selection_action;
@@ -141,9 +146,6 @@ private:
     QString tool_tip_for_page_mute_state(Tab&) const;
     QTabBar::ButtonPosition audio_button_position_for_tab(int tab_index) const;
 
-    void show_task_manager_window();
-    void close_task_manager_window();
-
     QScreen* m_current_screen;
     double m_device_pixel_ratio { 0 };
 
@@ -155,6 +157,7 @@ private:
     QAction* m_go_forward_action { nullptr };
     QAction* m_reload_action { nullptr };
     QAction* m_new_tab_action { nullptr };
+    QAction* m_new_window_action { nullptr };
     QAction* m_copy_selection_action { nullptr };
     QAction* m_paste_action { nullptr };
     QAction* m_select_all_action { nullptr };
@@ -163,9 +166,6 @@ private:
 
     SettingsDialog* m_settings_dialog { nullptr };
 
-    // FIXME: This should be owned at a higher level in case we have multiple browser windows
-    TaskManagerWindow* m_task_manager_window { nullptr };
-
     WebView::CookieJar& m_cookie_jar;
 
     WebContentOptions m_web_content_options;

Ladybird/Qt/main.cpp

@@ -103,6 +103,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     bool debug_web_content = false;
     bool log_all_js_exceptions = false;
     bool enable_idl_tracing = false;
+    bool new_window = false;
 
     Core::ArgsParser args_parser;
     args_parser.set_general_help("The Ladybird web browser :^)");
@@ -117,17 +118,29 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.add_option(log_all_js_exceptions, "Log all JavaScript exceptions", "log-all-js-exceptions");
     args_parser.add_option(enable_idl_tracing, "Enable IDL tracing", "enable-idl-tracing");
     args_parser.add_option(expose_internals_object, "Expose internals object", "expose-internals-object");
+    args_parser.add_option(new_window, "Force opening in a new window", "new-window", 'n');
     args_parser.parse(arguments);
 
     WebView::ChromeProcess chrome_process;
-    auto new_window = false;
     if (TRY(chrome_process.connect(raw_urls, new_window)) == WebView::ChromeProcess::ProcessDisposition::ExitProcess) {
         outln("Opening in existing process");
         return 0;
     }
 
-    chrome_process.on_new_window = [](auto const& urls) {
-        dbgln("asked to open new window with urls: {}", urls);
+    chrome_process.on_new_tab = [&](auto const& raw_urls) {
+        auto& window = app.active_window();
+        auto urls = sanitize_urls(raw_urls);
+        for (size_t i = 0; i < urls.size(); ++i) {
+            window.new_tab_from_url(urls[i], (i == 0) ? Web::HTML::ActivateTab::Yes : Web::HTML::ActivateTab::No);
+        }
+        window.show();
+        window.activateWindow();
+        window.raise();
+    };
+
+    app.on_open_file = [&](auto file_url) {
+        auto& window = app.active_window();
+        window.view().load(file_url);
     };
 
     WebView::ProcessManager::initialize();
@@ -171,23 +184,13 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         .expose_internals_object = expose_internals_object ? Ladybird::ExposeInternalsObject::Yes : Ladybird::ExposeInternalsObject::No,
     };
 
-    Ladybird::BrowserWindow window(sanitize_urls(raw_urls), cookie_jar, web_content_options, webdriver_content_ipc_path);
+    chrome_process.on_new_window = [&](auto const& urls) {
+        app.new_window(sanitize_urls(urls), cookie_jar, web_content_options, webdriver_content_ipc_path);
+    };
+
+    auto& window = app.new_window(sanitize_urls(raw_urls), cookie_jar, web_content_options, webdriver_content_ipc_path);
     window.setWindowTitle("Ladybird");
 
-    chrome_process.on_new_tab = [&](auto const& raw_urls) {
-        auto urls = sanitize_urls(raw_urls);
-        for (size_t i = 0; i < urls.size(); ++i) {
-            window.new_tab_from_url(urls[i], (i == 0) ? Web::HTML::ActivateTab::Yes : Web::HTML::ActivateTab::No);
-        }
-        window.show();
-        window.activateWindow();
-        window.raise();
-    };
-
-    app.on_open_file = [&](auto file_url) {
-        window.view().load(file_url);
-    };
-
     if (Ladybird::Settings::the()->is_maximized()) {
         window.showMaximized();
     } else {