scripts/modules/bl_i18n_utils/settings.py

@@ -251,6 +251,14 @@ PYGETTEXT_KEYWORDS = (() +
     tuple(("{}\\((?:[^\"',]+,){{2}}\\s*" + _msg_re + r"\s*(?:\)|,)").format(it)
           for it in ("BKE_modifier_set_error",)) +
 
+    # Extract messages specific to node sockets declaring labels.
+    tuple(("{}\\((?:[^\"',]+,)\\s*" + _msg_re + r"\s*\)").format(it)
+          for it in ("node_sock_label",)) +
+
+    # Same as above, but variant with a context.
+    tuple(("{}\\((?:[^\"',]+,)\\s*" + _msg_re + r"\s*,\s*" + _ctxt_re + r"\s*\)").format(it)
+          for it in ("node_sock_label",)) +
+
     # This one is a tad more risky, but in practice would not expect a name/uid string parameter
     # (the second one in those functions) to ever have a comma in it, so think this is fine.
     tuple(("{}\\((?:[^,]+,){{2}}\\s*" + _msg_re + r"\s*(?:\)|,)").format(it)

source/blender/blenkernel/BKE_node_runtime.hh

@@ -201,6 +201,7 @@ class bNodeSocketRuntime : NonCopyable, NonMovable {
   int index_in_node = -1;
   int index_in_all_sockets = -1;
   int index_in_inout_sockets = -1;
+  std::string label_translation_context;
 };
 
 /**

source/blender/editors/space_node/node_draw.cc

@@ -191,6 +191,11 @@ namespace blender::ed::space_node {
 
 static const char *node_socket_get_translation_context(const bNodeSocket &socket)
 {
+  /* Get the context from the label if it is defined. */
+  if (socket.runtime->label_translation_context[0] != '\0') {
+    return socket.runtime->label_translation_context.c_str();
+  }
+
   /* The node is not explicitly defined. */
   if (socket.runtime->declaration == nullptr) {
     return nullptr;

source/blender/nodes/composite/nodes/node_composite_sepcomb_color.cc

@@ -2,6 +2,8 @@
 
 #include "BLI_assert.h"
 
+#include "BLT_translation.h"
+
 #include "GPU_material.h"
 
 #include "COM_shader_node.hh"
@@ -35,7 +37,7 @@ static void node_cmp_combsep_color_label(const ListBase *sockets, CMPNodeCombSep
     case CMP_NODE_COMBSEP_COLOR_HSV:
       node_sock_label(sock1, "Hue");
       node_sock_label(sock2, "Saturation");
-      node_sock_label(sock3, "Value");
+      node_sock_label(sock3, "Value", BLT_I18NCONTEXT_COLOR);
       break;
     case CMP_NODE_COMBSEP_COLOR_HSL:
       node_sock_label(sock1, "Hue");

source/blender/nodes/intern/node_util.cc

@@ -73,9 +73,12 @@ void *node_initexec_curves(bNodeExecContext * /*context*/, bNode *node, bNodeIns
 /** \name Updates
  * \{ */
 
-void node_sock_label(bNodeSocket *sock, const char *name)
+void node_sock_label(bNodeSocket *sock, const char *name, const char *translation_context)
 {
   STRNCPY(sock->label, name);
+  if (translation_context) {
+    sock->runtime->label_translation_context = translation_context;
+  }
 }
 
 void node_sock_label_clear(bNodeSocket *sock)
@@ -83,6 +86,9 @@ void node_sock_label_clear(bNodeSocket *sock)
   if (sock->label[0] != '\0') {
     sock->label[0] = '\0';
   }
+  if (sock->runtime->label_translation_context[0] != '\0') {
+    sock->runtime->label_translation_context[0] = '\0';
+  }
 }
 
 void node_math_update(bNodeTree *ntree, bNode *node)
@@ -262,7 +268,7 @@ void node_combsep_color_label(const ListBase *sockets, NodeCombSepColorMode mode
     case NODE_COMBSEP_COLOR_HSV:
       node_sock_label(sock1, "Hue");
       node_sock_label(sock2, "Saturation");
-      node_sock_label(sock3, "Value");
+      node_sock_label(sock3, "Value", BLT_I18NCONTEXT_COLOR);
       break;
     default: {
       BLI_assert_unreachable();

source/blender/nodes/intern/node_util.hh

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#include "BLT_translation.h"
+
 struct bNode;
 struct bNodeTree;
 
@@ -30,7 +32,9 @@ void node_copy_standard_storage(bNodeTree *dest_ntree, bNode *dest_node, const b
 void *node_initexec_curves(bNodeExecContext *context, bNode *node, bNodeInstanceKey key);
 
 /**** Updates ****/
-void node_sock_label(bNodeSocket *sock, const char *name);
+void node_sock_label(bNodeSocket *sock,
+                     const char *name,
+                     const char *translation_context = BLT_I18NCONTEXT_DEFAULT);
 void node_sock_label_clear(bNodeSocket *sock);
 void node_math_update(bNodeTree *ntree, bNode *node);