Browser: Add support for disabling content filtering

Just for completeness.

Userland/Applications/Browser/Browser.h

@@ -14,6 +14,7 @@ namespace Browser {
 extern String g_home_url;
 extern String g_search_engine;
 extern Vector<String> g_content_filters;
+extern bool g_content_filters_enabled;
 extern IconBag g_icon_bag;
 
 }

Userland/Applications/Browser/BrowserWindow.cpp

@@ -526,6 +526,14 @@ void BrowserWindow::create_new_tab(URL url, bool activate)
         m_tab_widget->set_active_widget(&new_tab);
 }
 
+void BrowserWindow::content_filters_changed()
+{
+    tab_widget().for_each_child_of_type<Browser::Tab>([](auto& tab) {
+        tab.content_filters_changed();
+        return IterationDecision::Continue;
+    });
+}
+
 void BrowserWindow::config_string_did_change(String const& domain, String const& group, String const& key, String const& value)
 {
     if (domain != "Browser" || group != "Preferences")
@@ -541,12 +549,16 @@ void BrowserWindow::config_string_did_change(String const& domain, String const&
 
 void BrowserWindow::config_bool_did_change(String const& domain, String const& group, String const& key, bool value)
 {
+    dbgln("{} {} {} {}", domain, group, key, value);
     if (domain != "Browser" || group != "Preferences")
         return;
 
     if (key == "ShowBookmarksBar") {
         m_window_actions.show_bookmarks_bar_action().set_checked(value);
         Browser::BookmarksBarWidget::the().set_visible(value);
+    } else if (key == "EnableContentFilters") {
+        Browser::g_content_filters_enabled = value;
+        content_filters_changed();
     }
 
     // NOTE: CloseDownloadWidgetOnFinish is read each time in DownloadWindow

Userland/Applications/Browser/BrowserWindow.h

@@ -40,6 +40,8 @@ public:
     GUI::Action& inspect_dom_tree_action() { return *m_inspect_dom_tree_action; }
     GUI::Action& inspect_dom_node_action() { return *m_inspect_dom_node_action; }
 
+    void content_filters_changed();
+
 private:
     explicit BrowserWindow(CookieJar&, URL);
 

Userland/Applications/Browser/Tab.cpp

@@ -89,7 +89,10 @@ Tab::Tab(BrowserWindow& window)
     auto& webview_container = *find_descendant_of_type_named<GUI::Widget>("webview_container");
 
     m_web_content_view = webview_container.add<Web::OutOfProcessWebView>();
-    m_web_content_view->set_content_filters(g_content_filters);
+    if (g_content_filters_enabled)
+        m_web_content_view->set_content_filters(g_content_filters);
+    else
+        m_web_content_view->set_content_filters({});
 
     auto& go_back_button = toolbar.add_action(window.go_back_action());
     go_back_button.on_context_menu_request = [this](auto& context_menu_event) {
@@ -444,7 +447,10 @@ void Tab::context_menu_requested(const Gfx::IntPoint& screen_position)
 
 void Tab::content_filters_changed()
 {
-    m_web_content_view->set_content_filters(g_content_filters);
+    if (g_content_filters_enabled)
+        m_web_content_view->set_content_filters(g_content_filters);
+    else
+        m_web_content_view->set_content_filters({});
 }
 
 GUI::AbstractScrollableWidget& Tab::view()

Userland/Applications/Browser/main.cpp

@@ -30,6 +30,7 @@ namespace Browser {
 String g_search_engine;
 String g_home_url;
 Vector<String> g_content_filters;
+bool g_content_filters_enabled { true };
 IconBag g_icon_bag;
 
 }
@@ -88,6 +89,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
 
     Browser::g_home_url = Config::read_string("Browser", "Preferences", "Home", "file:///res/html/misc/welcome.html");
     Browser::g_search_engine = Config::read_string("Browser", "Preferences", "SearchEngine", {});
+    Browser::g_content_filters_enabled = Config::read_bool("Browser", "Preferences", "EnableContentFilters");
 
     Browser::g_icon_bag = TRY(Browser::IconBag::try_create());
 
@@ -113,10 +115,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
             dbgln("Reloading content filters failed: {}", error.release_error());
             return;
         }
-        window->tab_widget().for_each_child_of_type<Browser::Tab>([](auto& tab) {
+        window->content_filters_changed();
-            tab.content_filters_changed();
-            return IterationDecision::Continue;
-        });
     };
     TRY(content_filters_watcher->add_watch(String::formatted("{}/BrowserContentFilters.txt", Core::StandardPaths::config_directory()), Core::FileWatcherEvent::Type::ContentModified));