focus text input on popup dialogs

src/node_text_input.cpp

@@ -63,6 +63,8 @@ kEventResult NodeTextInput::handle_event(Event* e)
         m_cursor_visible = true;
         break;
     case kEventType::KeyDown:
+        if (!has_focus())
+            return kEventResult::Available;
         //switch (ke->m_key)
         //{
         //case VK_BACK:
@@ -74,6 +76,8 @@ kEventResult NodeTextInput::handle_event(Event* e)
         //}
         break;
     case kEventType::KeyUp:
+        if (!has_focus())
+            return kEventResult::Available;
         if (ke->m_key == kKey::KeyEnter && on_return)
             on_return(this);
         if (ke->m_key == kKey::KeyBackspace)
@@ -86,6 +90,8 @@ kEventResult NodeTextInput::handle_event(Event* e)
         }
         break;
     case kEventType::KeyChar:
+        if (!has_focus())
+            return kEventResult::Available;
         timer = 0;
         m_cursor_visible = true;
         if (ke->m_char == '\b' // backspace
@@ -163,6 +169,11 @@ void NodeTextInput::update_layout()
         m_off.x = (w - m_text_mesh.bb.x) + pad[3];
 }
 
+bool NodeTextInput::has_focus() noexcept
+{
+    return root()->current_key_capture.get() == this;
+}
+
 void NodeTextInput::handle_resize(glm::vec2 old_size, glm::vec2 new_size, float zoom)
 {
     auto pad = GetPadding();