diff options
author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-08-10 18:04:05 +0300 |
---|---|---|
committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-08-10 18:54:00 +0300 |
commit | d7b5e2fa72c91b603713b52eec22af9ae131926d (patch) | |
tree | 04a9e350c23cc68888f7a56e55bbd85ca9ecdfbe /source/blender/editors/space_outliner/outliner_dragdrop.c | |
parent | 4375e7ff0b74f96447e27f78a0d9245353d36865 (diff) |
Outliner: use generic WM drag and drop system for collections.
* Drag and drop between multiple outliners now works.
* Dragging the icon and text now give the same results.
* Fixes various crashes.
Diffstat (limited to 'source/blender/editors/space_outliner/outliner_dragdrop.c')
-rw-r--r-- | source/blender/editors/space_outliner/outliner_dragdrop.c | 625 |
1 files changed, 311 insertions, 314 deletions
diff --git a/source/blender/editors/space_outliner/outliner_dragdrop.c b/source/blender/editors/space_outliner/outliner_dragdrop.c index f9a4fda0c45..55b9a561503 100644 --- a/source/blender/editors/space_outliner/outliner_dragdrop.c +++ b/source/blender/editors/space_outliner/outliner_dragdrop.c @@ -129,6 +129,101 @@ static ID *outliner_ID_drop_find(bContext *C, const wmEvent *event, short idcode } } +/* Find tree element to drop into, with additional before and after reorder support. */ +static TreeElement *outliner_drop_insert_find( + bContext *C, const wmEvent *event, + TreeElementInsertType *r_insert_type) +{ + SpaceOops *soops = CTX_wm_space_outliner(C); + ARegion *ar = CTX_wm_region(C); + TreeElement *te_hovered; + float view_mval[2]; + + UI_view2d_region_to_view(&ar->v2d, event->mval[0], event->mval[1], &view_mval[0], &view_mval[1]); + te_hovered = outliner_find_item_at_y(soops, &soops->tree, view_mval[1]); + + if (te_hovered) { + /* mouse hovers an element (ignoring x-axis), now find out how to insert the dragged item exactly */ + const float margin = UI_UNIT_Y * (1.0f / 4); + + if (view_mval[1] < (te_hovered->ys + margin)) { + if (TSELEM_OPEN(TREESTORE(te_hovered), soops)) { + /* inserting after a open item means we insert into it, but as first child */ + if (BLI_listbase_is_empty(&te_hovered->subtree)) { + *r_insert_type = TE_INSERT_INTO; + return te_hovered; + } + else { + *r_insert_type = TE_INSERT_BEFORE; + return te_hovered->subtree.first; + } + } + else { + *r_insert_type = TE_INSERT_AFTER; + return te_hovered; + } + } + else if (view_mval[1] > (te_hovered->ys + (3 * margin))) { + *r_insert_type = TE_INSERT_BEFORE; + return te_hovered; + } + else { + *r_insert_type = TE_INSERT_INTO; + return te_hovered; + } + } + else { + /* mouse doesn't hover any item (ignoring x-axis), so it's either above list bounds or below. */ + TreeElement *first = soops->tree.first; + TreeElement *last = soops->tree.last; + + if (view_mval[1] < last->ys) { + *r_insert_type = TE_INSERT_AFTER; + return last; + } + else if (view_mval[1] > (first->ys + UI_UNIT_Y)) { + *r_insert_type = TE_INSERT_BEFORE; + return first; + } + else { + BLI_assert(0); + return NULL; + } + } +} + +static TreeElement *outliner_drop_insert_collection_find( + bContext *C, const wmEvent *event, + TreeElementInsertType *r_insert_type) +{ + TreeElement *te = outliner_drop_insert_find(C, event, r_insert_type); + if (!te) { + return NULL; + } + + Collection *collection = outliner_collection_from_tree_element(te); + if (!collection) { + return NULL; + } + + /* We can't insert/before after master collection. */ + if (collection->flag & COLLECTION_IS_MASTER) { + if (*r_insert_type == TE_INSERT_BEFORE) { + /* can't go higher than master collection, insert into it */ + *r_insert_type = TE_INSERT_INTO; + } + else if (*r_insert_type == TE_INSERT_AFTER) { + te = te->subtree.last; + collection = outliner_collection_from_tree_element(te); + if (!collection) { + return NULL; + } + } + } + + return te; +} + /* ******************** Parent Drop Operator *********************** */ static bool parent_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event, const char **UNUSED(tooltip)) @@ -542,404 +637,306 @@ void OUTLINER_OT_material_drop(wmOperatorType *ot) /* ******************** Collection Drop Operator *********************** */ -static bool collection_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event, const char **UNUSED(tooltip)) -{ - Object *ob = (Object *)WM_drag_ID(drag, ID_OB); - Collection *collection = (Collection *)WM_drag_ID(drag, ID_GR); +typedef struct CollectionDrop { + Collection *from; + Collection *to; - if (ob || collection) { - TreeElement *te = outliner_drop_find(C, event); - return (te && outliner_is_collection_tree_element(te)); - } - else { - return false; - } -} + TreeElement *te; + TreeElementInsertType insert_type; +} CollectionDrop; -static int collection_drop_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event) +static Collection *collection_parent_from_ID(ID *id) { - Main *bmain = CTX_data_main(C); - TreeElement *te = outliner_drop_find(C, event); - - if (!te || !outliner_is_collection_tree_element(te)) { - return OPERATOR_CANCELLED; + /* Can't change linked parent collections. */ + if (!id || ID_IS_LINKED(id)) { + return NULL; } - Collection *collection = outliner_collection_from_tree_element(te); - - // TODO: don't use scene, makes no sense anymore - // TODO: move rather than link, change hover text - Scene *scene = BKE_scene_find_from_collection(bmain, collection); - Object *ob = (Object *)WM_drag_ID_from_event(event, ID_OB); - if (ELEM(NULL, ob, scene, collection)) { - return OPERATOR_CANCELLED; + /* Also support dropping into/from scene collection. */ + if (GS(id->name) == ID_SCE) { + return ((Scene *)id)->master_collection; + } + else if (GS(id->name) == ID_GR) { + return (Collection *)id; } - BKE_collection_object_add(bmain, collection, ob); - - DEG_id_tag_update(&collection->id, DEG_TAG_COPY_ON_WRITE); - DEG_relations_tag_update(bmain); - WM_event_add_notifier(C, NC_SCENE | ND_LAYER, scene); - - return OPERATOR_FINISHED; + return NULL; } -void OUTLINER_OT_collection_drop(wmOperatorType *ot) +static bool collection_drop_init(bContext *C, wmDrag *drag, const wmEvent *event, CollectionDrop *data) { - /* identifiers */ - ot->name = "Link to Collection"; // TODO: rename to move? - ot->description = "Drag to move to collection in Outliner"; - ot->idname = "OUTLINER_OT_collection_drop"; - - /* api callbacks */ - ot->invoke = collection_drop_invoke; - ot->poll = ED_operator_outliner_active; - - /* flags */ - ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL; -} + /* Get collection to drop into. */ + TreeElementInsertType insert_type; + TreeElement *te = outliner_drop_insert_collection_find(C, event, &insert_type); + if (!te) { + return false; + } -/* ********************* Outliner Drag Operator ******************** */ + Collection *to_collection = outliner_collection_from_tree_element(te); + if (ID_IS_LINKED(to_collection)) { + return false; + } -typedef struct OutlinerDragDropTooltip { - TreeElement *te; - void *handle; -} OutlinerDragDropTooltip; + /* Get drag datablocks. */ + if (drag->type != WM_DRAG_ID) { + return false; + } -static bool outliner_item_drag_drop_poll(bContext *C) -{ - SpaceOops *soops = CTX_wm_space_outliner(C); - return ED_operator_outliner_active(C) && - /* Only collection display modes supported for now. Others need more design work */ - ELEM(soops->outlinevis, SO_VIEW_LAYER, SO_LIBRARIES); -} + wmDragID *drag_id = drag->ids.first; + if (drag_id == NULL) { + return false; + } -static TreeElement *outliner_item_drag_element_find(SpaceOops *soops, ARegion *ar, const wmEvent *event) -{ - /* note: using EVT_TWEAK_ events to trigger dragging is fine, - * it sends coordinates from where dragging was started */ - const float my = UI_view2d_region_to_view_y(&ar->v2d, event->mval[1]); - return outliner_find_item_at_y(soops, &soops->tree, my); -} + ID *id = drag_id->id; + if (!(id && ELEM(GS(id->name), ID_GR, ID_OB))) { + return false; + } -static void outliner_item_drag_end(wmWindow *win, OutlinerDragDropTooltip *data) -{ - MEM_SAFE_FREE(data->te->drag_data); + /* Get collection to drag out of. */ + ID *parent = drag_id->from_parent; + Collection *from_collection = collection_parent_from_ID(parent); + if (event->ctrl) { + from_collection = NULL; + } - if (data->handle) { - WM_draw_cb_exit(win, data->handle); + /* Get collections. */ + if (GS(id->name) == ID_GR) { + if (id == &to_collection->id) { + return false; + } + } + else { + insert_type = TE_INSERT_INTO; } - MEM_SAFE_FREE(data); + data->from = from_collection; + data->to = to_collection; + data->te = te; + data->insert_type = insert_type; + + return true; } -static void outliner_item_drag_get_insert_data( - const SpaceOops *soops, ARegion *ar, const wmEvent *event, TreeElement *te_dragged, - TreeElement **r_te_insert_handle, TreeElementInsertType *r_insert_type) +static bool collection_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event, const char **tooltip) { - TreeElement *te_hovered; - float view_mval[2]; - - UI_view2d_region_to_view(&ar->v2d, event->mval[0], event->mval[1], &view_mval[0], &view_mval[1]); - te_hovered = outliner_find_item_at_y(soops, &soops->tree, view_mval[1]); - - if (te_hovered) { - /* mouse hovers an element (ignoring x-axis), now find out how to insert the dragged item exactly */ + SpaceOops *soops = CTX_wm_space_outliner(C); + ARegion *ar = CTX_wm_region(C); + bool changed = outliner_flag_set(&soops->tree, TSE_HIGHLIGHTED | TSE_DRAG_ANY, false); - if (te_hovered == te_dragged) { - *r_te_insert_handle = te_dragged; + CollectionDrop data; + if (collection_drop_init(C, drag, event, &data)) { + if (!data.from || event->ctrl) { + *tooltip = IFACE_("Link inside Collection"); } - else if (te_hovered != te_dragged) { - const float margin = UI_UNIT_Y * (1.0f / 4); - - *r_te_insert_handle = te_hovered; - if (view_mval[1] < (te_hovered->ys + margin)) { - if (TSELEM_OPEN(TREESTORE(te_hovered), soops)) { - /* inserting after a open item means we insert into it, but as first child */ - if (BLI_listbase_is_empty(&te_hovered->subtree)) { - *r_insert_type = TE_INSERT_INTO; + else { + TreeElement *te = data.te; + TreeStoreElem *tselem = TREESTORE(te); + + switch (data.insert_type) { + case TE_INSERT_BEFORE: + tselem->flag |= TSE_DRAG_BEFORE; + changed = true; + if (te->prev && outliner_is_collection_tree_element(te->prev)) { + *tooltip = TIP_("Move between collections"); } else { - *r_insert_type = TE_INSERT_BEFORE; - *r_te_insert_handle = te_hovered->subtree.first; + *tooltip = TIP_("Move before collection"); } - } - else { - *r_insert_type = TE_INSERT_AFTER; - } - } - else if (view_mval[1] > (te_hovered->ys + (3 * margin))) { - *r_insert_type = TE_INSERT_BEFORE; - } - else { - *r_insert_type = TE_INSERT_INTO; + break; + case TE_INSERT_AFTER: + tselem->flag |= TSE_DRAG_AFTER; + changed = true; + if (te->next && outliner_is_collection_tree_element(te->next)) { + *tooltip = TIP_("Move between collections"); + } + else { + *tooltip = TIP_("Move after collection"); + } + break; + case TE_INSERT_INTO: + tselem->flag |= TSE_DRAG_INTO; + changed = true; + *tooltip = TIP_("Move inside collection (Ctrl to link)"); + break; } } } - else { - /* mouse doesn't hover any item (ignoring x-axis), so it's either above list bounds or below. */ - TreeElement *first = soops->tree.first; - TreeElement *last = soops->tree.last; - - if (view_mval[1] < last->ys) { - *r_te_insert_handle = last; - *r_insert_type = TE_INSERT_AFTER; - } - else if (view_mval[1] > (first->ys + UI_UNIT_Y)) { - *r_te_insert_handle = first; - *r_insert_type = TE_INSERT_BEFORE; - } - else { - BLI_assert(0); - } + if (changed) { + ED_region_tag_redraw_no_rebuild(ar); } + + return true; } -static void outliner_item_drag_handle( - SpaceOops *soops, ARegion *ar, const wmEvent *event, TreeElement *te_dragged) +static int collection_drop_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event) { - TreeElement *te_insert_handle; - TreeElementInsertType insert_type; - - outliner_item_drag_get_insert_data(soops, ar, event, te_dragged, &te_insert_handle, &insert_type); + Main *bmain = CTX_data_main(C); + Scene *scene = CTX_data_scene(C); - if (!te_dragged->reinsert_poll && - /* there is no reinsert_poll, so we do some generic checks (same types and reinsert callback is available) */ - (TREESTORE(te_dragged)->type == TREESTORE(te_insert_handle)->type) && - te_dragged->reinsert) - { - /* pass */ - } - else if (te_dragged == te_insert_handle) { - /* nothing will happen anyway, no need to do poll check */ - } - else if (!te_dragged->reinsert_poll || - !te_dragged->reinsert_poll(te_dragged, &te_insert_handle, &insert_type)) - { - te_insert_handle = NULL; + if (event->custom != EVT_DATA_DRAGDROP) { + return OPERATOR_CANCELLED; } - te_dragged->drag_data->insert_type = insert_type; - te_dragged->drag_data->insert_handle = te_insert_handle; -} -/** - * Returns true if it is a collection and empty. - */ -static bool is_empty_collection(TreeElement *te) -{ - Collection *collection = outliner_collection_from_tree_element(te); + ListBase *lb = event->customdata; + wmDrag *drag = lb->first; - if (!collection) { - return false; + CollectionDrop data; + if (!collection_drop_init(C, drag, event, &data)) { + return OPERATOR_CANCELLED; } - return BLI_listbase_is_empty(&collection->gobject) && - BLI_listbase_is_empty(&collection->children); -} - -static bool outliner_item_drag_drop_apply( - Main *bmain, - Scene *scene, - SpaceOops *soops, - OutlinerDragDropTooltip *data, - const wmEvent *event) -{ - TreeElement *dragged_te = data->te; - TreeElement *insert_handle = dragged_te->drag_data->insert_handle; - TreeElementInsertType insert_type = dragged_te->drag_data->insert_type; + /* Before/after insert handling. */ + Collection *relative = NULL; + bool relative_after = false; - if ((insert_handle == dragged_te) || !insert_handle) { - /* No need to do anything */ - } - else if (dragged_te->reinsert) { - BLI_assert(!dragged_te->reinsert_poll || dragged_te->reinsert_poll(dragged_te, &insert_handle, - &insert_type)); - /* call of assert above should not have changed insert_handle and insert_type at this point */ - BLI_assert(dragged_te->drag_data->insert_handle == insert_handle && - dragged_te->drag_data->insert_type == insert_type); + if (ELEM(data.insert_type, TE_INSERT_BEFORE, TE_INSERT_AFTER)) { + SpaceOops *soops = CTX_wm_space_outliner(C); - /* If the collection was just created and you moved objects/collections inside it, - * it is strange to have it closed and we not see the newly dragged elements. */ - const bool should_open_collection = (insert_type == TE_INSERT_INTO) && is_empty_collection(insert_handle); + relative = data.to; + relative_after = (data.insert_type == TE_INSERT_AFTER); - dragged_te->reinsert(bmain, scene, soops, dragged_te, insert_handle, insert_type, event); + TreeElement *parent_te = outliner_find_parent_element(&soops->tree, NULL, data.te); + data.to = (parent_te) ? outliner_collection_from_tree_element(parent_te) : NULL; + } - if (should_open_collection && !is_empty_collection(insert_handle)) { - TREESTORE(insert_handle)->flag &= ~TSE_CLOSED; - } - return true; + if (!data.to) { + return OPERATOR_CANCELLED; } - return false; -} + for (wmDragID *drag_id = drag->ids.first; drag_id; drag_id = drag_id->next) { + /* Ctrl enables linking, so we don't need a from collection then. */ + Collection *from = (event->ctrl) ? NULL : collection_parent_from_ID(drag_id->from_parent); -static int outliner_item_drag_drop_modal(bContext *C, wmOperator *op, const wmEvent *event) -{ - Main *bmain = CTX_data_main(C); - Scene *scene = CTX_data_scene(C); - ARegion *ar = CTX_wm_region(C); - SpaceOops *soops = CTX_wm_space_outliner(C); - OutlinerDragDropTooltip *data = op->customdata; - TreeElement *te_dragged = data->te; - int retval = OPERATOR_RUNNING_MODAL; - bool redraw = false; - bool skip_rebuild = true; - - switch (event->type) { - case EVT_MODAL_MAP: - if (event->val == OUTLINER_ITEM_DRAG_CONFIRM) { - if (outliner_item_drag_drop_apply(bmain, scene, soops, data, event)) { - skip_rebuild = false; - } - retval = OPERATOR_FINISHED; - } - else if (event->val == OUTLINER_ITEM_DRAG_CANCEL) { - retval = OPERATOR_CANCELLED; + if (GS(drag_id->id->name) == ID_OB) { + /* Move/link object into collection. */ + Object *object = (Object *)drag_id->id; + + if (from) { + BKE_collection_object_move(bmain, scene, data.to, from, object); } else { - BLI_assert(0); + BKE_collection_object_add(bmain, data.to, object); } - WM_event_add_mousemove(C); /* update highlight */ - outliner_item_drag_end(CTX_wm_window(C), data); - redraw = true; - break; - case MOUSEMOVE: - outliner_item_drag_handle(soops, ar, event, te_dragged); - redraw = true; - break; - } - - if (redraw) { - if (skip_rebuild) { - ED_region_tag_redraw_no_rebuild(ar); - } - else { - ED_region_tag_redraw(ar); } - } - - return retval; -} - -static const char *outliner_drag_drop_tooltip_get( - const TreeElement *te_float) -{ - const char *name = NULL; + else if (GS(drag_id->id->name) == ID_GR) { + /* Move/link collection into collection. */ + Collection *collection = (Collection *)drag_id->id; - const TreeElement *te_insert = te_float->drag_data->insert_handle; - if (te_float && outliner_is_collection_tree_element(te_float)) { - if (te_insert == NULL) { - name = TIP_("Move collection"); - } - else { - switch (te_float->drag_data->insert_type) { - case TE_INSERT_BEFORE: - if (te_insert->prev && outliner_is_collection_tree_element(te_insert->prev)) { - name = TIP_("Move between collections"); - } - else { - name = TIP_("Move before collection"); - } - break; - case TE_INSERT_AFTER: - if (te_insert->next && outliner_is_collection_tree_element(te_insert->next)) { - name = TIP_("Move between collections"); - } - else { - name = TIP_("Move after collection"); - } - break; - case TE_INSERT_INTO: - name = TIP_("Move inside collection"); - break; + if (collection != from) { + BKE_collection_move(bmain, data.to, from, relative, relative_after, collection); } } - } - else if ((TREESTORE(te_float)->type == 0) && (te_float->idcode == ID_OB)) { - name = TIP_("Move to collection (Ctrl to link)"); + + if (from) { + DEG_id_tag_update(&from->id, DEG_TAG_COPY_ON_WRITE); + } } - return name; + /* Update dependency graph. */ + DEG_id_tag_update(&data.to->id, DEG_TAG_COPY_ON_WRITE); + DEG_relations_tag_update(bmain); + WM_event_add_notifier(C, NC_SCENE | ND_LAYER, scene); + + return OPERATOR_FINISHED; } -static void outliner_drag_drop_tooltip_cb(const wmWindow *win, void *vdata) +void OUTLINER_OT_collection_drop(wmOperatorType *ot) { - OutlinerDragDropTooltip *data = vdata; - const char *tooltip; - - int cursorx, cursory; - int x, y; - - tooltip = outliner_drag_drop_tooltip_get(data->te); - if (tooltip == NULL) { - return; - } - - cursorx = win->eventstate->x; - cursory = win->eventstate->y; + /* identifiers */ + ot->name = "Move to Collection"; + ot->description = "Drag to move to collection in Outliner"; + ot->idname = "OUTLINER_OT_collection_drop"; - x = cursorx + U.widget_unit; - y = cursory - U.widget_unit; + /* api callbacks */ + ot->invoke = collection_drop_invoke; + ot->poll = ED_operator_outliner_active; - /* Drawing. */ - const uiFontStyle *fstyle = UI_FSTYLE_WIDGET; + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_INTERNAL; +} - const float col_fg[4] = {1.0f, 1.0f, 1.0f, 1.0f}; - const float col_bg[4] = {0.0f, 0.0f, 0.0f, 0.2f}; +/* ********************* Outliner Drag Operator ******************** */ - GPU_blend(true); - UI_fontstyle_draw_simple_backdrop(fstyle, x, y, tooltip, col_fg, col_bg); - GPU_blend(false); +static TreeElement *outliner_item_drag_element_find(SpaceOops *soops, ARegion *ar, const wmEvent *event) +{ + /* note: using EVT_TWEAK_ events to trigger dragging is fine, + * it sends coordinates from where dragging was started */ + const float my = UI_view2d_region_to_view_y(&ar->v2d, event->mval[1]); + return outliner_find_item_at_y(soops, &soops->tree, my); } -static int outliner_item_drag_drop_invoke(bContext *C, wmOperator *op, const wmEvent *event) +static int outliner_item_drag_drop_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event) { ARegion *ar = CTX_wm_region(C); SpaceOops *soops = CTX_wm_space_outliner(C); - TreeElement *te_dragged = outliner_item_drag_element_find(soops, ar, event); + TreeElement *te = outliner_item_drag_element_find(soops, ar, event); - if (!te_dragged) { - return (OPERATOR_FINISHED | OPERATOR_PASS_THROUGH); + if (!te) { + return (OPERATOR_CANCELLED | OPERATOR_PASS_THROUGH); + } + + TreeElementIcon data = tree_element_get_icon(TREESTORE(te), te); + if (!data.drag_id) { + return (OPERATOR_CANCELLED | OPERATOR_PASS_THROUGH); } - OutlinerDragDropTooltip *data = MEM_mallocN(sizeof(OutlinerDragDropTooltip), __func__); - data->te = te_dragged; + wmDrag *drag = WM_event_start_drag(C, data.icon, WM_DRAG_ID, NULL, 0.0, WM_DRAG_NOP); - op->customdata = data; - te_dragged->drag_data = MEM_callocN(sizeof(*te_dragged->drag_data), __func__); - /* by default we don't change the item position */ - te_dragged->drag_data->insert_handle = te_dragged; - /* unset highlighted tree element, dragged one will be highlighted instead */ - outliner_flag_set(&soops->tree, TSE_HIGHLIGHTED, false); + if (GS(data.drag_id->name) == ID_OB) { + /* For objects we cheat and drag all selected objects. */ + TREESTORE(te)->flag |= TSE_SELECTED; - ED_region_tag_redraw_no_rebuild(ar); + struct ObjectsSelectedData selected = { + .objects_selected_array = {NULL, NULL}, + }; - WM_event_add_modal_handler(C, op); + outliner_tree_traverse(soops, &soops->tree, 0, TSE_SELECTED, outliner_find_selected_objects, &selected); + LISTBASE_FOREACH (LinkData *, link, &selected.objects_selected_array) { + TreeElement *ten_selected = (TreeElement *)link->data; + Object *ob = (Object *)TREESTORE(ten_selected)->id; - data->handle = WM_draw_cb_activate(CTX_wm_window(C), outliner_drag_drop_tooltip_cb, data); + /* Find parent collection of object. */ + Collection *parent = NULL; - return OPERATOR_RUNNING_MODAL; + if (ten_selected->parent) { + for (TreeElement *te_ob_parent = ten_selected->parent; te_ob_parent; te_ob_parent = te_ob_parent->parent) { + if (outliner_is_collection_tree_element(te_ob_parent)) { + parent = outliner_collection_from_tree_element(te_ob_parent); + break; + } + } + } + else { + Scene *scene = CTX_data_scene(C); + parent = BKE_collection_master(scene); + } + + WM_drag_add_ID(drag, &ob->id, &parent->id); + } + + BLI_freelistN(&selected.objects_selected_array); + } + else { + /* Add single ID. */ + WM_drag_add_ID(drag, data.drag_id, data.drag_parent); + } + + return (OPERATOR_FINISHED | OPERATOR_PASS_THROUGH); } -/** - * Notes about Outliner Item Drag 'n Drop: - * Right now only collections display mode is supported. But ideally all/most modes would support this. There are - * just some open design questions that have to be answered: do we want to allow mixing order of different data types - * (like render-layers and objects)? Would that be a purely visual change or would that have any other effect? ... - */ +/* Outliner drag and drop. This operator mostly exists to support dragging + * from outliner text instead of only from the icon, and also to show a + * hint in the statusbar keymap. */ + void OUTLINER_OT_item_drag_drop(wmOperatorType *ot) { ot->name = "Drag and Drop"; ot->idname = "OUTLINER_OT_item_drag_drop"; - ot->description = "Change the hierarchical position of an item by repositioning it using drag and drop"; + ot->description = "Drag and drop element to another place"; ot->invoke = outliner_item_drag_drop_invoke; - ot->modal = outliner_item_drag_drop_modal; - - ot->poll = outliner_item_drag_drop_poll; - - ot->flag = OPTYPE_UNDO; + ot->poll = ED_operator_outliner_active; } /* *************************** Drop Boxes ************************** */ |