Geometry Nodes: shortcuts for viewer nodes

Implement shortcuts for viewer nodes. Viewer nodes are now activated using the operator `bpy.ops.node.activate_viewer()` instead of activating the viewer by setting the node to active.

This also unifies the behavior with viewer shortcuts in the compositor (see attachment in the original PR).

Pull Request: https://projects.blender.org/blender/blender/pulls/134555

source/blender/blenkernel/intern/node.cc

@@ -3608,14 +3608,16 @@ void node_tree_free_local_tree(bNodeTree *ntree)
 void node_tree_set_output(bNodeTree &ntree)
 {
   const bool is_compositor = ntree.type == NTREE_COMPOSIT;
+  const bool is_geometry = ntree.type == NTREE_GEOMETRY;
   /* find the active outputs, might become tree type dependent handler */
   LISTBASE_FOREACH (bNode *, node, &ntree.nodes) {
     if (node->typeinfo->nclass == NODE_CLASS_OUTPUT) {
       /* we need a check for which output node should be tagged like this, below an exception */
-      if (ELEM(node->type_legacy, CMP_NODE_OUTPUT_FILE, GEO_NODE_VIEWER)) {
+      if (node->is_type("CompositorNodeOutputFile")) {
         continue;
       }
-      const bool node_is_output = node->type_legacy == CMP_NODE_VIEWER;
+      const bool node_is_output = node->is_type("CompositorNodeViewer") ||
+                                  node->is_type("GeometryNodeViewer");
 
       int output = 0;
       /* there is more types having output class, each one is checked */
@@ -3626,12 +3628,15 @@ void node_tree_set_output(bNodeTree &ntree)
         }
 
         /* same type, exception for viewer */
-        const bool tnode_is_output = tnode->type_legacy == CMP_NODE_VIEWER;
-        const bool compositor_case = is_compositor && tnode_is_output && node_is_output;
-        const bool has_same_shortcut = compositor_case && node != tnode &&
+        const bool tnode_is_output = tnode->is_type("CompositorNodeViewer") ||
+                                     tnode->is_type("GeometryNodeViewer");
+        const bool viewer_case = (is_compositor || is_geometry) && tnode_is_output &&
+                                 node_is_output;
+        const bool has_same_shortcut = viewer_case && node != tnode &&
                                        tnode->custom1 == node->custom1 &&
                                        tnode->custom1 != NODE_VIEWER_SHORTCUT_NONE;
-        if (tnode->type_legacy == node->type_legacy || compositor_case) {
+
+        if (tnode->type_legacy == node->type_legacy || viewer_case) {
           if (tnode->flag & NODE_DO_OUTPUT) {
             output++;
             if (output > 1) {

source/blender/editors/space_node/node_draw.cc

@@ -3317,7 +3317,7 @@ static void node_draw_extra_info_panel(const bContext &C,
 
 static short get_viewer_shortcut_icon(const bNode &node)
 {
-  BLI_assert(node.is_type("CompositorNodeViewer"));
+  BLI_assert(node.is_type("CompositorNodeViewer") || node.is_type("GeometryNodeViewer"));
   switch (node.custom1) {
     case NODE_VIEWER_SHORTCUT_NONE:
       /* No change by default. */
@@ -3532,9 +3532,24 @@ static void node_draw_basis(const bContext &C,
                               0,
                               "");
     /* Selection implicitly activates the node. */
-    const char *operator_idname = is_active ? "NODE_OT_deactivate_viewer" : "NODE_OT_select";
+    const char *operator_idname = is_active ? "NODE_OT_deactivate_viewer" :
+                                              "NODE_OT_activate_viewer";
     UI_but_func_set(
         but, node_toggle_button_cb, POINTER_FROM_INT(node.identifier), (void *)operator_idname);
+
+    short shortcut_icon = get_viewer_shortcut_icon(node);
+    uiDefIconBut(&block,
+                 UI_BTYPE_BUT,
+                 0,
+                 shortcut_icon,
+                 iconofs - 1.2 * iconbutw,
+                 rct.ymax - NODE_DY,
+                 iconbutw,
+                 UI_UNIT_Y,
+                 nullptr,
+                 0,
+                 0,
+                 "");
     UI_block_emboss_set(&block, UI_EMBOSS);
   }
   /* Viewer node shortcuts. */

source/blender/makesrna/intern/rna_nodetree.cc

@@ -1344,18 +1344,40 @@ static void rna_NodeTree_active_node_set(PointerRNA *ptr,
   }
 }
 
-static void rna_Node_shortcut_node_set(PointerRNA *ptr, int value)
+static void node_viewer_set_shortcut_fn(bNode *node, bNodeTree &ntree, int value)
+{
+  /* Avoid having two nodes with the same shortcut. */
+  for (bNode *other_node : ntree.all_nodes()) {
+    if ((other_node->is_type("CompositorNodeViewer") ||
+         other_node->is_type("GeometryNodeViewer")) &&
+        other_node->custom1 == value)
+    {
+      other_node->custom1 = NODE_VIEWER_SHORTCUT_NONE;
+    }
+  }
+  node->custom1 = value;
+}
+
+void rna_Node_Viewer_shortcut_node_set(PointerRNA *ptr, PropertyRNA * /*prop*/, int value)
 {
   bNode *curr_node = static_cast<bNode *>(ptr->data);
   bNodeTree &ntree = curr_node->owner_tree();
 
-  /* Avoid having two nodes with the same shortcut. */
-  for (bNode *node : ntree.all_nodes()) {
-    if (node->is_type("CompositorNodeViewer") && node->custom1 == value) {
-      node->custom1 = NODE_VIEWER_SHORTCUT_NONE;
-    }
-  }
-  curr_node->custom1 = value;
+  node_viewer_set_shortcut_fn(curr_node, ntree, value);
+}
+
+int rna_Node_Viewer_shortcut_node_get(PointerRNA *ptr, PropertyRNA * /*prop*/)
+{
+  bNode *curr_node = static_cast<bNode *>(ptr->data);
+  return curr_node->custom1;
+}
+
+void rna_Node_Viewer_shortcut_node_set(PointerRNA *ptr, int value)
+{
+  bNode *curr_node = static_cast<bNode *>(ptr->data);
+  bNodeTree &ntree = curr_node->owner_tree();
+
+  node_viewer_set_shortcut_fn(curr_node, ntree, value);
 }
 
 static bNodeLink *rna_NodeTree_link_new(bNodeTree *ntree,
@@ -9164,7 +9186,7 @@ static void def_cmp_viewer(BlenderRNA * /*brna*/, StructRNA *srna)
 
   prop = RNA_def_property(srna, "ui_shortcut", PROP_INT, PROP_NONE);
   RNA_def_property_int_sdna(prop, nullptr, "custom1");
-  RNA_def_property_int_funcs(prop, nullptr, "rna_Node_shortcut_node_set", nullptr);
+  RNA_def_property_int_funcs(prop, nullptr, "rna_Node_Viewer_shortcut_node_set", nullptr);
   RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
   RNA_def_property_override_flag(prop, PROPOVERRIDE_IGNORE);
   RNA_def_property_int_default(prop, NODE_VIEWER_SHORTCUT_NONE);

source/blender/nodes/NOD_rna_define.hh

@@ -15,6 +15,8 @@
 void rna_Node_update(Main *bmain, Scene *scene, PointerRNA *ptr);
 void rna_Node_socket_update(Main *bmain, Scene *scene, PointerRNA *ptr);
 void rna_Node_update_relations(Main *bmain, Scene *scne, PointerRNA *ptr);
+void rna_Node_Viewer_shortcut_node_set(PointerRNA *ptr, PropertyRNA *prop, int value);
+int rna_Node_Viewer_shortcut_node_get(PointerRNA *ptr, PropertyRNA *prop);
 
 namespace blender::nodes {
 

source/blender/nodes/geometry/nodes/node_geo_viewer.cc

@@ -138,6 +138,15 @@ static void node_rna(StructRNA *srna)
                     rna_enum_attribute_domain_with_auto_items,
                     NOD_storage_enum_accessors(domain),
                     int(AttrDomain::Point));
+
+  PropertyRNA *prop;
+  prop = RNA_def_property(srna, "ui_shortcut", PROP_INT, PROP_NONE);
+  RNA_def_property_int_funcs_runtime(
+      prop, rna_Node_Viewer_shortcut_node_get, rna_Node_Viewer_shortcut_node_set, nullptr);
+  RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
+  RNA_def_property_override_flag(prop, PROPOVERRIDE_IGNORE);
+  RNA_def_property_int_default(prop, NODE_VIEWER_SHORTCUT_NONE);
+  RNA_def_property_update_notifier(prop, NC_NODE | ND_DISPLAY);
 }
 
 static void node_register()