[Bf-blender-cvs] [34370d9fdf3] master: VSE: Add drag and drop handler for preview area

[Peter Fog]

Commit: 34370d9fdf33d6d5c8678a0ad9cf339fcdda00fc
Author: Peter Fog
Date:   Tue Nov 23 05:16:49 2021 +0100
Branches: master
https://developer.blender.org/rB34370d9fdf33d6d5c8678a0ad9cf339fcdda00fc

VSE: Add drag and drop handler for preview area

For some users, dropping assets into preview area may be more practical
due to space constraints or it may be just more intuitive.

Reviewed By: ISS

Differential Revision: https://developer.blender.org/D13311

===================================================================

M	source/blender/editors/space_sequencer/space_sequencer.c

===================================================================

diff --git a/source/blender/editors/space_sequencer/space_sequencer.c b/source/blender/editors/space_sequencer/space_sequencer.c
index 9e14aed96d7..f6f8e45590f 100644
--- a/source/blender/editors/space_sequencer/space_sequencer.c
+++ b/source/blender/editors/space_sequencer/space_sequencer.c
@@ -486,10 +486,9 @@ static void sequencer_drop_copy(wmDrag *drag, wmDropBox *drop)
 }
 
 /* This region dropbox definition. */
-static void sequencer_dropboxes(void)
-{
-  ListBase *lb = WM_dropboxmap_find("Sequencer", SPACE_SEQ, RGN_TYPE_WINDOW);
 
+static void sequencer_dropboxes_add_to_lb(ListBase *lb)
+{
   WM_dropbox_add(
       lb, "SEQUENCER_OT_image_strip_add", image_drop_poll, sequencer_drop_copy, NULL, NULL);
   WM_dropbox_add(
@@ -498,6 +497,14 @@ static void sequencer_dropboxes(void)
       lb, "SEQUENCER_OT_sound_strip_add", sound_drop_poll, sequencer_drop_copy, NULL, NULL);
 }
 
+static void sequencer_dropboxes(void)
+{
+  ListBase *lb = WM_dropboxmap_find("Sequencer", SPACE_SEQ, RGN_TYPE_WINDOW);
+  sequencer_dropboxes_add_to_lb(lb);
+  lb = WM_dropboxmap_find("Sequencer", SPACE_SEQ, RGN_TYPE_PREVIEW);
+  sequencer_dropboxes_add_to_lb(lb);
+}
+
 /* ************* end drop *********** */
 
 /* DO NOT make this static, this hides the symbol and breaks API generation script. */
@@ -786,6 +793,9 @@ static void sequencer_preview_region_init(wmWindowManager *wm, ARegion *region)
   /* Own keymap. */
   keymap = WM_keymap_ensure(wm->defaultconf, "SequencerPreview", SPACE_SEQ, 0);
   WM_event_add_keymap_handler_v2d_mask(&region->handlers, keymap);
+
+  ListBase *lb = WM_dropboxmap_find("Sequencer", SPACE_SEQ, RGN_TYPE_PREVIEW);
+  WM_event_add_dropbox_handler(&region->handlers, lb);
 }
 
 static void sequencer_preview_region_layout(const bContext *C, ARegion *region)