add ability to selecively disable ops

src/kiri/init.js

@@ -2239,7 +2239,7 @@
         // block standard browser context menu
         DOC.oncontextmenu = (event) => {
             let et = event.target;
-            if (et.tagName === 'CANVAS' || et.id === 'context-menu') {
+            if (et.tagName === 'CANVAS' || et.id === 'context-menu' || et.classList.contains('draggable')) {
                 event.preventDefault();
                 event.stopPropagation();
                 return false;

src/mode/cam/client.js

@@ -290,6 +290,9 @@
                     func.opDel(rec);
                 };
                 let el = $(id);
+                if (rec.disabled) {
+                    el.classList.add("disabled");
+                }
                 bounds.push(el);
                 let timer = null;
                 let inside = true;
@@ -331,6 +334,17 @@
                     if (!clist.contains("draggable")) {
                         return;
                     }
+                    if (ev.ctrlKey || ev.metaKey) {
+                        rec.disabled = !rec.disabled;
+                        ev.preventDefault();
+                        ev.stopPropagation();
+                        if (rec.disabled) {
+                            clist.add("disabled");
+                        } else {
+                            clist.remove("disabled");
+                        }
+                        return true;
+                    }
                     clist.add("drag");
                     ev.stopPropagation();
                     ev.preventDefault();

src/mode/cam/slice.js

@@ -131,7 +131,7 @@
         let opSum = 0;
         let opTot = opList.map(op => op.weight()).reduce((a,v) => a + v);
 
-        for (let op of proc.ops) {
+        for (let op of proc.ops.filter(op => !op.disabled)) {
             let opfn = OPS[op.type];
             if (opfn) {
                 let opin = new opfn(state, op);