Browser: Move show_console_window() to Tab

Having the BrowserWindow assigning Tab's internals felt a bit wrong.
This is also a step towards removing BrowserWindow as a friend class.

While I was at it, changed the Tab to having a pointer to the
ConsoleWidget instead of the Window, since that is usually what we want
to use, and it's awkward having to static_cast the main-widget
repeatedly.

Userland/Applications/Browser/BrowserWindow.cpp

@@ -211,22 +211,7 @@ void BrowserWindow::build_menus()
 
     auto js_console_action = GUI::Action::create(
         "Open &JS Console", { Mod_Ctrl, Key_I }, [this](auto&) {
-            auto& tab = active_tab();
+            active_tab().show_console_window();
-            if (!tab.m_console_window) {
-                tab.m_console_window = GUI::Window::construct(this);
-                tab.m_console_window->resize(500, 300);
-                tab.m_console_window->set_title("JS Console");
-                tab.m_console_window->set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/filetype-javascript.png"));
-                tab.m_console_window->set_main_widget<ConsoleWidget>();
-            }
-            auto* console_widget = static_cast<ConsoleWidget*>(tab.m_console_window->main_widget());
-            console_widget->on_js_input = [&tab](const String& js_source) {
-                tab.m_web_content_view->js_console_input(js_source);
-            };
-            console_widget->clear_output();
-            tab.m_web_content_view->js_console_initialize();
-            tab.m_console_window->show();
-            tab.m_console_window->move_to_front();
         },
         this);
     js_console_action->set_status_tip("Open JavaScript console for this page");

Userland/Applications/Browser/Tab.cpp

@@ -294,10 +294,8 @@ Tab::Tab(BrowserWindow& window)
     };
 
     hooks().on_js_console_output = [this](auto& method, auto& line) {
-        if (m_console_window) {
+        if (m_console_widget)
-            auto* console_widget = static_cast<ConsoleWidget*>(m_console_window->main_widget());
+            m_console_widget->handle_js_console_output(method, line);
-            console_widget->handle_js_console_output(method, line);
-        }
     };
 
     auto focus_location_box_action = GUI::Action::create(
@@ -503,4 +501,25 @@ void Tab::show_inspector_window(Browser::Tab::InspectorTarget inspector_target)
     window->move_to_front();
 }
 
+void Tab::show_console_window()
+{
+    if (!m_console_widget) {
+        auto console_window = GUI::Window::construct(&window());
+        console_window->resize(500, 300);
+        console_window->set_title("JS Console");
+        console_window->set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/filetype-javascript.png"));
+        m_console_widget = console_window->set_main_widget<ConsoleWidget>();
+        m_console_widget->on_js_input = [this](String const& js_source) {
+            m_web_content_view->js_console_input(js_source);
+        };
+    }
+
+    m_console_widget->clear_output();
+    m_web_content_view->js_console_initialize();
+
+    auto* window = m_console_widget->window();
+    window->show();
+    window->move_to_front();
+}
+
 }

Userland/Applications/Browser/Tab.h

@@ -23,6 +23,7 @@ namespace Browser {
 
 class BrowserWindow;
 class InspectorWidget;
+class ConsoleWidget;
 
 class Tab final : public GUI::Widget {
     C_OBJECT(Tab);
@@ -66,6 +67,8 @@ public:
     };
     void show_inspector_window(InspectorTarget);
 
+    void show_console_window();
+
     const String& title() const { return m_title; }
     const Gfx::Bitmap* icon() const { return m_icon; }
 
@@ -91,7 +94,7 @@ private:
     RefPtr<GUI::UrlBox> m_location_box;
     RefPtr<GUI::Button> m_bookmark_button;
     RefPtr<InspectorWidget> m_dom_inspector_widget;
-    RefPtr<GUI::Window> m_console_window;
+    RefPtr<ConsoleWidget> m_console_widget;
     RefPtr<GUI::Statusbar> m_statusbar;
     RefPtr<GUI::ToolbarContainer> m_toolbar_container;