1 files changed, 28 insertions, 1 deletions

diff --git a/scene/gui/tab_bar.cpp b/scene/gui/tab_bar.cpp
index 2d687eb201..0e130d60af 100644
--- a/scene/gui/tab_bar.cpp
+++ b/scene/gui/tab_bar.cpp
@@ -323,6 +323,19 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
 	}
 }
 
+String TabBar::get_tooltip(const Point2 &p_pos) const {
+	int tab_idx = get_tab_idx_at_point(p_pos);
+	if (tab_idx < 0) {
+		return Control::get_tooltip(p_pos);
+	}
+
+	if (tabs[tab_idx].tooltip.is_empty() && tabs[tab_idx].truncated) {
+		return tabs[tab_idx].text;
+	}
+
+	return tabs[tab_idx].tooltip;
+}
+
 void TabBar::_shape(int p_tab) {
 	tabs.write[p_tab].text_buf->clear();
 	tabs.write[p_tab].text_buf->set_width(-1);
@@ -757,6 +770,16 @@ String TabBar::get_tab_title(int p_tab) const {
 	return tabs[p_tab].text;
 }
 
+void TabBar::set_tab_tooltip(int p_tab, const String &p_tooltip) {
+	ERR_FAIL_INDEX(p_tab, tabs.size());
+	tabs.write[p_tab].tooltip = p_tooltip;
+}
+
+String TabBar::get_tab_tooltip(int p_tab) const {
+	ERR_FAIL_INDEX_V(p_tab, tabs.size(), "");
+	return tabs[p_tab].tooltip;
+}
+
 void TabBar::set_tab_text_direction(int p_tab, Control::TextDirection p_text_direction) {
 	ERR_FAIL_INDEX(p_tab, tabs.size());
 	ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
@@ -998,7 +1021,8 @@ void TabBar::_update_cache(bool p_update_hover) {
 		tabs.write[i].size_text = Math::ceil(tabs[i].text_buf->get_size().x);
 		tabs.write[i].size_cache = get_tab_width(i);
 
-		if (max_width > 0 && tabs[i].size_cache > max_width) {
+		tabs.write[i].truncated = max_width > 0 && tabs[i].size_cache > max_width;
+		if (tabs[i].truncated) {
 			int size_textless = tabs[i].size_cache - tabs[i].size_text;
 			int mw = MAX(size_textless, max_width);
 
@@ -1730,6 +1754,8 @@ void TabBar::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("select_next_available"), &TabBar::select_next_available);
 	ClassDB::bind_method(D_METHOD("set_tab_title", "tab_idx", "title"), &TabBar::set_tab_title);
 	ClassDB::bind_method(D_METHOD("get_tab_title", "tab_idx"), &TabBar::get_tab_title);
+	ClassDB::bind_method(D_METHOD("set_tab_tooltip", "tab_idx", "tooltip"), &TabBar::set_tab_tooltip);
+	ClassDB::bind_method(D_METHOD("get_tab_tooltip", "tab_idx"), &TabBar::get_tab_tooltip);
 	ClassDB::bind_method(D_METHOD("set_tab_text_direction", "tab_idx", "direction"), &TabBar::set_tab_text_direction);
 	ClassDB::bind_method(D_METHOD("get_tab_text_direction", "tab_idx"), &TabBar::get_tab_text_direction);
 	ClassDB::bind_method(D_METHOD("set_tab_language", "tab_idx", "language"), &TabBar::set_tab_language);
@@ -1843,6 +1869,7 @@ void TabBar::_bind_methods() {
 
 	base_property_helper.set_prefix("tab_");
 	base_property_helper.register_property(PropertyInfo(Variant::STRING, "title"), defaults.text, &TabBar::set_tab_title, &TabBar::get_tab_title);
+	base_property_helper.register_property(PropertyInfo(Variant::STRING, "tooltip"), defaults.tooltip, &TabBar::set_tab_tooltip, &TabBar::get_tab_tooltip);
 	base_property_helper.register_property(PropertyInfo(Variant::OBJECT, "icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), defaults.icon, &TabBar::set_tab_icon, &TabBar::get_tab_icon);
 	base_property_helper.register_property(PropertyInfo(Variant::BOOL, "disabled"), defaults.disabled, &TabBar::set_tab_disabled, &TabBar::is_tab_disabled);
 }