LibGUI+Browser: Add UrlBox class

This allows the address bar to "select all" when initially gaining focus
as Firefox and Chrome do. A future improvement on this would be for the
Widget class to mange and provide focus transition as part of the events
instead of the UrlBox class. Currently focus is updated before the event
is provided to the UrlBox class.

Userland/Applications/Browser/Tab.cpp

@@ -142,7 +142,7 @@ Tab::Tab(BrowserWindow& window, Type type)
     toolbar.add_action(window.go_home_action());
     toolbar.add_action(window.reload_action());
 
-    m_location_box = toolbar.add<GUI::TextBox>();
+    m_location_box = toolbar.add<GUI::UrlBox>();
     m_location_box->set_placeholder("Address");
 
     m_location_box->on_return_pressed = [this] {
@@ -153,7 +153,7 @@ Tab::Tab(BrowserWindow& window, Type type)
 
         auto url = url_from_user_input(m_location_box->text());
         load(url);
-        view().set_focus(true);
+        view();
     };
 
     m_location_box->add_custom_context_menu_action(GUI::Action::create("Paste && Go", [this](auto&) {
@@ -312,8 +312,8 @@ Tab::Tab(BrowserWindow& window, Type type)
 
     auto focus_location_box_action = GUI::Action::create(
         "Focus location box", { Mod_Ctrl, Key_L }, Key_F6, [this](auto&) {
-            m_location_box->select_all();
             m_location_box->set_focus(true);
+            m_location_box->select_current_line();
         },
         this);
 
@@ -371,6 +371,8 @@ void Tab::load(const URL& url, LoadType load_type)
         m_page_view->load(url);
     else
         m_web_content_view->load(url);
+
+    m_location_box->set_focus(false);
 }
 
 URL Tab::url() const

Userland/Applications/Browser/Tab.h

@@ -89,7 +89,7 @@ private:
     RefPtr<Web::InProcessWebView> m_page_view;
     RefPtr<Web::OutOfProcessWebView> m_web_content_view;
 
-    RefPtr<GUI::TextBox> m_location_box;
+    RefPtr<GUI::UrlBox> m_location_box;
     RefPtr<GUI::Button> m_bookmark_button;
     RefPtr<GUI::Window> m_dom_inspector_window;
     RefPtr<GUI::Window> m_console_window;

Userland/Libraries/LibGUI/Forward.h

@@ -66,6 +66,7 @@ class Statusbar;
 class TabWidget;
 class TableView;
 class TextBox;
+class UrlBox;
 class TextDocument;
 class TextDocumentLine;
 struct TextDocumentSpan;

Userland/Libraries/LibGUI/TextBox.cpp

@@ -8,6 +8,7 @@
 
 REGISTER_WIDGET(GUI, TextBox)
 REGISTER_WIDGET(GUI, PasswordBox)
+REGISTER_WIDGET(GUI, UrlBox)
 
 namespace GUI {
 
@@ -80,4 +81,38 @@ PasswordBox::PasswordBox()
     set_text_is_secret(true);
 }
 
+UrlBox::UrlBox()
+    : TextBox()
+{
+    set_auto_focusable(false);
+}
+
+UrlBox::~UrlBox()
+{
+}
+
+void UrlBox::focusout_event(GUI::FocusEvent& event)
+{
+    set_focus_transition(true);
+
+    TextBox::focusout_event(event);
+}
+
+void UrlBox::mousedown_event(GUI::MouseEvent& event)
+{
+    if (is_displayonly())
+        return;
+
+    if (event.button() != MouseButton::Left)
+        return;
+
+    if (is_focus_transition()) {
+        TextBox::select_current_line();
+
+        set_focus_transition(false);
+    } else {
+        TextBox::mousedown_event(event);
+    }
+}
+
 }

Userland/Libraries/LibGUI/TextBox.h

@@ -43,4 +43,20 @@ public:
     PasswordBox();
 };
 
+class UrlBox : public TextBox {
+    C_OBJECT(UrlBox)
+public:
+    UrlBox();
+    virtual ~UrlBox() override;
+
+    void set_focus_transition(bool focus_transition) { m_focus_transition = focus_transition; }
+    bool is_focus_transition() const { return m_focus_transition; }
+
+private:
+    virtual void mousedown_event(GUI::MouseEvent&) override;
+    virtual void focusout_event(GUI::FocusEvent&) override;
+
+    bool m_focus_transition { true };
+};
+
 }

Userland/Libraries/LibGUI/TextEditor.cpp

@@ -256,10 +256,7 @@ void TextEditor::mousedown_event(MouseEvent& event)
 
     if (m_triple_click_timer.is_valid() && m_triple_click_timer.elapsed() < 250) {
         m_triple_click_timer = Core::ElapsedTimer();
-        m_selection = document().range_for_entire_line(m_cursor.line());
-        set_cursor(m_selection.end());
-        update();
-        did_update_selection();
+        select_current_line();
         return;
     }
 
@@ -310,6 +307,14 @@ void TextEditor::mousemove_event(MouseEvent& event)
     }
 }
 
+void TextEditor::select_current_line()
+{
+    m_selection = document().range_for_entire_line(m_cursor.line());
+    set_cursor(m_selection.end());
+    update();
+    did_update_selection();
+}
+
 void TextEditor::automatic_selection_scroll_timer_fired()
 {
     if (!m_in_drag_select) {

Userland/Libraries/LibGUI/TextEditor.h

@@ -142,6 +142,7 @@ public:
     void delete_previous_char();
     void delete_from_line_start_to_cursor();
     void select_all();
+    void select_current_line();
     virtual void undo();
     virtual void redo();