1 files changed, 65 insertions, 0 deletions
diff --git a/kscurses/ui/popup_manager.jai b/kscurses/ui/popup_manager.jai
new file mode 100644
index 0000000..704ad49
--- /dev/null
+++ b/kscurses/ui/popup_manager.jai
@@ -0,0 +1,65 @@
+MAX_POPUP_LEVES :: 10;
+
+UI_Popup_Manager :: struct {
+	#as using base_parent : UI_Parent = .{type = .POPUP_MANAGER, box_type = .NONE};
+
+	layers : [MAX_POPUP_LEVES]UI_Popup;
+
+	layers_count := 0;
+}
+
+set_background :: (using ui_popup_manager : *UI_Popup_Manager, scene : UI_Scene) {
+	assert(layers_count == 0);
+	layers[0] = .{root = scene.root, entry = scene.entry};
+	scene.root.parent = xx ui_popup_manager;
+	layers_count = 1;
+}
+
+handle_key_popup_manager :: (ui_elem : *UI_Elem, key : Key) -> handled:bool {
+	using ui_popup_manager := cast(*UI_Popup_Manager) ui_elem;
+	assert(layers_count > 0, "0 layers in popup manager");
+	if !handle_key(active_element, key) {
+		if key == .ESCAPE && layers_count > 1 {
+			pop(ui_popup_manager);
+			return true;
+		} else {
+			return false;
+		}
+	} else {
+		return true;
+	}
+}
+
+c_draw_popup_manager :: (canvas : *Canvas, ui_elem : *UI_Elem, zone : Ibox2, style : *UI_Style) -> bool {
+	using ui_popup_manager := cast(*UI_Popup_Manager) ui_elem;
+	assert(layers_count > 0, "0 layers in popup manager");
+	for i : 0..layers_count-1 {
+		popup_zone := zone;
+		ok : bool;
+		if layers[i].size != .{-1, -1} then {
+			popup_zone, ok = fit_in_center(zone, layers[i].size);
+			if !ok return false;			
+		}
+		if !c_draw(canvas, layers[i].root, popup_zone, style) return false;
+	}
+	return true;
+}
+
+pop :: (using ui_popup_manager : *UI_Popup_Manager) {	
+	assert(layers_count > 1, "can't pop background");
+	layers_count -= 1;
+	unset_active_recursive(__last_set);
+	layers[layers_count].root.parent = null;
+	set_active_recursive(layers[layers_count - 1].entry);
+
+}
+push :: (using ui_popup_manager : *UI_Popup_Manager, scene : UI_Popup) {
+	assert(layers_count < MAX_POPUP_LEVES, "too much popup layers");
+	unset_active_recursive(__last_set);
+
+	layers[layers_count] = scene;
+	scene.root.parent = xx ui_popup_manager;
+	set_active_recursive(layers[layers_count].entry);
+
+	layers_count += 1;
+}
+\ No newline at end of file