WindowServer: Compute final window title before passing to WM clients

We were not substituting the window modified marker ("[*]") in the
title strings we were sending to WM clients. This caused the Taskbar
to show pre-substitution window titles for the Text Editor application.

This patch moves the window title resolution to Window::compute_title()
which is then used throughout.

Userland/Libraries/LibGfx/ClassicWindowTheme.cpp

@@ -52,11 +52,8 @@ Gfx::IntRect ClassicWindowTheme::titlebar_text_rect(WindowType window_type, cons
     };
 }
 
-void ClassicWindowTheme::paint_normal_frame(Painter& painter, WindowState window_state, const IntRect& window_rect, const StringView& window_title, const Bitmap& icon, const Palette& palette, const IntRect& leftmost_button_rect, int menu_row_count, bool window_modified) const
+void ClassicWindowTheme::paint_normal_frame(Painter& painter, WindowState window_state, const IntRect& window_rect, const StringView& window_title, const Bitmap& icon, const Palette& palette, const IntRect& leftmost_button_rect, int menu_row_count, [[maybe_unused]] bool window_modified) const
 {
-    String final_title = window_title;
-    final_title.replace("[*]", window_modified ? " (*)" : "");
-
     auto frame_rect = frame_rect_for_window(WindowType::Normal, window_rect, palette, menu_row_count);
     frame_rect.set_location({ 0, 0 });
     Gfx::StylePainter::paint_window_frame(painter, frame_rect, palette);
@@ -67,7 +64,7 @@ void ClassicWindowTheme::paint_normal_frame(Painter& painter, WindowState window
     auto titlebar_icon_rect = this->titlebar_icon_rect(WindowType::Normal, window_rect, palette);
     auto titlebar_inner_rect = titlebar_text_rect(WindowType::Normal, window_rect, palette);
     auto titlebar_title_rect = titlebar_inner_rect;
-    titlebar_title_rect.set_width(FontDatabase::default_bold_font().width(final_title));
+    titlebar_title_rect.set_width(FontDatabase::default_bold_font().width(window_title));
 
     auto [title_color, border_color, border_color2, stripes_color, shadow_color] = compute_frame_colors(window_state, palette);
 
@@ -89,9 +86,9 @@ void ClassicWindowTheme::paint_normal_frame(Painter& painter, WindowState window
     auto clipped_title_rect = titlebar_title_rect;
     clipped_title_rect.set_width(stripe_right - clipped_title_rect.x());
     if (!clipped_title_rect.is_empty()) {
-        painter.draw_text(clipped_title_rect.translated(1, 2), final_title, title_font, Gfx::TextAlignment::CenterLeft, shadow_color, Gfx::TextElision::Right);
+        painter.draw_text(clipped_title_rect.translated(1, 2), window_title, title_font, Gfx::TextAlignment::CenterLeft, shadow_color, Gfx::TextElision::Right);
         // FIXME: The translated(0, 1) wouldn't be necessary if we could center text based on its baseline.
-        painter.draw_text(clipped_title_rect.translated(0, 1), final_title, title_font, Gfx::TextAlignment::CenterLeft, title_color, Gfx::TextElision::Right);
+        painter.draw_text(clipped_title_rect.translated(0, 1), window_title, title_font, Gfx::TextAlignment::CenterLeft, title_color, Gfx::TextElision::Right);
     }
 
     painter.draw_scaled_bitmap(titlebar_icon_rect, icon, icon.rect());

Userland/Services/WindowServer/Window.cpp

@@ -1002,4 +1002,13 @@ void Window::set_modified(bool modified)
     frame().invalidate_titlebar();
 }
 
+String Window::computed_title() const
+{
+    String title = m_title;
+    title.replace("[*]", is_modified() ? " (*)" : "");
+    if (client() && client()->is_unresponsive())
+        return String::formatted("{} (Not responding)", title);
+    return title;
+}
+
 }

Userland/Services/WindowServer/Window.h

@@ -125,6 +125,8 @@ public:
     String title() const { return m_title; }
     void set_title(const String&);
 
+    String computed_title() const;
+
     float opacity() const { return m_opacity; }
     void set_opacity(float);
 

Userland/Services/WindowServer/WindowFrame.cpp

@@ -270,18 +270,11 @@ void WindowFrame::paint_notification_frame(Gfx::Painter& painter)
     Gfx::WindowTheme::current().paint_notification_frame(painter, m_window.rect(), palette, m_buttons.last().relative_rect());
 }
 
-String WindowFrame::compute_title_text() const
-{
-    if (m_window.client() && m_window.client()->is_unresponsive())
-        return String::formatted("{} (Not responding)", m_window.title());
-    return m_window.title();
-}
-
 void WindowFrame::paint_tool_window_frame(Gfx::Painter& painter)
 {
     auto palette = WindowManager::the().palette();
     auto leftmost_button_rect = m_buttons.is_empty() ? Gfx::IntRect() : m_buttons.last().relative_rect();
-    Gfx::WindowTheme::current().paint_tool_window_frame(painter, window_state_for_theme(), m_window.rect(), compute_title_text(), palette, leftmost_button_rect);
+    Gfx::WindowTheme::current().paint_tool_window_frame(painter, window_state_for_theme(), m_window.rect(), m_window.computed_title(), palette, leftmost_button_rect);
 }
 
 void WindowFrame::paint_menubar(Gfx::Painter& painter)
@@ -316,7 +309,7 @@ void WindowFrame::paint_normal_frame(Gfx::Painter& painter)
 {
     auto palette = WindowManager::the().palette();
     auto leftmost_button_rect = m_buttons.is_empty() ? Gfx::IntRect() : m_buttons.last().relative_rect();
-    Gfx::WindowTheme::current().paint_normal_frame(painter, window_state_for_theme(), m_window.rect(), compute_title_text(), m_window.icon(), palette, leftmost_button_rect, menu_row_count(), m_window.is_modified());
+    Gfx::WindowTheme::current().paint_normal_frame(painter, window_state_for_theme(), m_window.rect(), m_window.computed_title(), m_window.icon(), palette, leftmost_button_rect, menu_row_count(), m_window.is_modified());
 
     if (m_window.menubar() && m_window.should_show_menubar())
         paint_menubar(painter);

Userland/Services/WindowServer/WindowFrame.h

@@ -94,7 +94,7 @@ private:
     void handle_menu_mouse_event(Menu&, const MouseEvent&);
 
     Gfx::WindowTheme::WindowState window_state_for_theme() const;
-    String compute_title_text() const;
+    String computed_title() const;
 
     Window& m_window;
     NonnullOwnPtrVector<Button> m_buttons;

Userland/Services/WindowServer/WindowManager.cpp

@@ -299,7 +299,7 @@ void WindowManager::tell_wm_about_window(WMClientConnection& conn, Window& windo
     if (window.is_internal())
         return;
     auto* parent = window.parent_window();
-    conn.async_window_state_changed(conn.window_id(), window.client_id(), window.window_id(), parent ? parent->client_id() : -1, parent ? parent->window_id() : -1, window.is_active(), window.is_minimized(), window.is_modal_dont_unparent(), window.is_frameless(), (i32)window.type(), window.title(), window.rect(), window.progress());
+    conn.async_window_state_changed(conn.window_id(), window.client_id(), window.window_id(), parent ? parent->client_id() : -1, parent ? parent->window_id() : -1, window.is_active(), window.is_minimized(), window.is_modal_dont_unparent(), window.is_frameless(), (i32)window.type(), window.computed_title(), window.rect(), window.progress());
 }
 
 void WindowManager::tell_wm_about_window_rect(WMClientConnection& conn, Window& window)

Userland/Services/WindowServer/WindowSwitcher.cpp

@@ -185,7 +185,7 @@ void WindowSwitcher::draw()
         Gfx::IntRect icon_rect = { thumbnail_rect.bottom_right().translated(-window.icon().width(), -window.icon().height()), { window.icon().width(), window.icon().height() } };
         painter.fill_rect(icon_rect, palette.window());
         painter.blit(icon_rect.location(), window.icon(), window.icon().rect());
-        painter.draw_text(item_rect.translated(thumbnail_width() + 12, 0), window.title(), WindowManager::the().window_title_font(), Gfx::TextAlignment::CenterLeft, text_color);
+        painter.draw_text(item_rect.translated(thumbnail_width() + 12, 0), window.computed_title(), WindowManager::the().window_title_font(), Gfx::TextAlignment::CenterLeft, text_color);
         painter.draw_text(item_rect, window.rect().to_string(), Gfx::TextAlignment::CenterRight, rect_text_color);
     }
 }
@@ -207,7 +207,7 @@ void WindowSwitcher::refresh()
             if (window.is_frameless())
                 return IterationDecision::Continue;
             ++window_count;
-            longest_title_width = max(longest_title_width, wm.font().width(window.title()));
+            longest_title_width = max(longest_title_width, wm.font().width(window.computed_title()));
             if (selected_window == &window)
                 m_selected_index = m_windows.size();
             m_windows.append(window);