Applications: Use placeholders in TextBoxes where applicable

Applications/Browser/Tab.cpp

@@ -103,6 +103,7 @@ Tab::Tab(Type type)
     m_location_box = toolbar.add<GUI::TextBox>();
     m_location_box->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
     m_location_box->set_preferred_size(0, 22);
+    m_location_box->set_placeholder("Address");
 
     m_location_box->on_return_pressed = [this] {
         auto url = url_from_user_input(m_location_box->text());

Applications/Help/main.cpp

@@ -122,11 +122,7 @@ int main(int argc, char* argv[])
     auto& search_list_view = search_view.add<GUI::ListView>();
     search_box.set_preferred_size(0, 20);
     search_box.set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
-    search_box.set_text("Search...");
-    search_box.on_focusin = [&] {
-        if (search_box.text() == "Search...")
-            search_box.set_text("");
-    };
+    search_box.set_placeholder("Search...");
     search_box.on_change = [&] {
         if (auto model = search_list_view.model()) {
             auto& search_model = *static_cast<GUI::FilteringProxyModel*>(model);
@@ -134,15 +130,6 @@ int main(int argc, char* argv[])
             search_model.update();
         }
     };
-    search_box.on_focusout = [&] {
-        if (search_box.text().is_empty()) {
-            if (auto model = search_list_view.model()) {
-                auto& search_model = *static_cast<GUI::FilteringProxyModel*>(model);
-                search_model.set_filter_term("");
-            }
-            search_box.set_text("Search...");
-        }
-    };
     search_list_view.set_model(GUI::FilteringProxyModel::construct(model));
     search_list_view.model()->update();
 

Applications/IRCClient/IRCWindow.cpp

@@ -202,6 +202,7 @@ IRCWindow::IRCWindow(IRCClient& client, void* owner, Type type, const String& na
         m_text_box->clear();
     };
     m_text_box->set_history_enabled(true);
+    m_text_box->set_placeholder("Message");
 
     m_client->register_subwindow(*this);
 }

Demos/WidgetGallery/main.cpp

@@ -221,7 +221,7 @@ int main(int argc, char** argv)
     textbox_vert2_container.layout()->set_margins({ 1, 12, 1, 4 });
 
     auto& textbox1 = textbox_vert1_container.add<GUI::TextBox>();
-    textbox1.set_text("Editable");
+    textbox1.set_placeholder("Editable");
     auto& textbox2 = textbox_vert1_container.add<GUI::TextBox>();
     textbox2.set_text("Disabled");
     textbox2.set_enabled(false);