Fix for splash not opening centered

When the new window didn't end up using the size stored in the preferences
the splash would not be centered (even outside the screen in some cases).

Now centered popups listen for window resizing.

1 files changed, 27 insertions, 0 deletions

diff --git a/source/blender/editors/interface/interface_regions.c b/source/blender/editors/interface/interface_regions.c
index 466978272bc..7b6b41eeef3 100644
--- a/source/blender/editors/interface/interface_regions.c
+++ b/source/blender/editors/interface/interface_regions.c
@@ -1692,6 +1692,28 @@ static void ui_block_region_draw(const bContext *C, ARegion *ar)
 		UI_block_draw(C, block);
 }
 
+/**
+ * Use to refresh centered popups on screen resizing (for splash).
+ */
+static void ui_block_region_popup_window_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+{
+	switch (wmn->category) {
+		case NC_WINDOW:
+		{
+			switch (wmn->action) {
+				case NA_EDITED:
+				{
+					/* window resize */
+					ED_region_tag_refresh_ui(ar);
+					break;
+				}
+			}
+			break;
+		}
+	}
+}
+
 static void ui_popup_block_clip(wmWindow *window, uiBlock *block)
 {
 	uiBut *bt;
@@ -2003,6 +2025,11 @@ uiPopupBlockHandle *ui_popup_block_create(
 	block = ui_popup_block_refresh(C, handle, butregion, but);
 	handle = block->handle;
 
+	/* keep centered on window resizing */
+	if ((block->bounds_type == UI_BLOCK_BOUNDS_POPUP_CENTER) && handle->can_refresh) {
+		type.listener = ui_block_region_popup_window_listener;
+	}
+
 	return handle;
 }