Add configuration option to block specific selection buttons

client-data/tools/hand/hand.js

@@ -38,8 +38,10 @@
 	var transform_elements = [];
 	var selectorState = selectorStates.pointing;
 	var last_sent = 0;
+	var blockedSelectionButtons = Tools.server_config.BLOCKED_SELECTION_BUTTONS;
+	var selectionButtons = {};
 
-	var deleteButton = createButton("delete", "delete", 22, 22,
+	selectionButtons["delete"] = createButton("delete", "delete", 22, 22,
 		function(me, bbox, s) {
 			me.width.baseVal.value = me.origWidth / s;
 			me.height.baseVal.value = me.origHeight / s;
@@ -49,7 +51,7 @@
 		},
 									deleteSelection);
 
-	var duplicateButton = createButton("duplicate", "duplicate", 22, 22,
+	selectionButtons["duplicate"] = createButton("duplicate", "duplicate", 22, 22,
 		function(me, bbox, s) {
 			me.width.baseVal.value = me.origWidth / s;
 			me.height.baseVal.value = me.origHeight / s;
@@ -58,7 +60,7 @@
 			me.style.display = "";
 		},
 									   duplicateSelection);
-	var scaleHandle = createButton("scaleHandle", "handle", 14, 14,
+	selectionButtons["scale"] = createButton("scaleHandle", "handle", 14, 14,
 		function(me, bbox, s) {
 			me.width.baseVal.value = me.origWidth / s;
 			me.height.baseVal.value = me.origHeight / s;
@@ -66,8 +68,14 @@
 			me.y.baseVal.value = bbox.r[1] + bbox.b[1] - me.origHeight/(2*s);
 			me.style.display = "";
 		},
-								   startScalingTransform);
-	var selectionButtons = [deleteButton, duplicateButton, scaleHandle];
+								startScalingTransform);
+
+	for (i in blockedSelectionButtons) {
+		delete selectionButtons[blockedSelectionButtons[i]];
+	}
+	selectionButtons = Object.keys(selectionButtons).map(function(k) {
+			return selectionButtons[k];
+		});
 
 	var getScale = Tools.getScale;
 

server/client_configuration.js

@@ -6,5 +6,6 @@ module.exports = {
   MAX_EMIT_COUNT: config.MAX_EMIT_COUNT,
   MAX_EMIT_COUNT_PERIOD: config.MAX_EMIT_COUNT_PERIOD,
   BLOCKED_TOOLS: config.BLOCKED_TOOLS,
+  BLOCKED_SELECTION_BUTTONS: config.BLOCKED_SELECTION_BUTTONS,
   AUTO_FINGER_WHITEOUT: config.AUTO_FINGER_WHITEOUT,
 };

server/configuration.js

@@ -42,6 +42,9 @@ module.exports = {
   /** Blocked Tools. A comma-separated list of tools that should not appear on boards. */
   BLOCKED_TOOLS: (process.env["WBO_BLOCKED_TOOLS"] || "").split(","),
 
+  /** Selection Buttons. A comma-separated list of selection buttons that should not be available. */
+  BLOCKED_SELECTION_BUTTONS: (process.env["WBO_BLOCKED_SELECTION_BUTTONS"] || "").split(","),
+
   /** Automatically switch to White-out on finger touch after drawing
       with Pencil using a stylus. Only supported on iPad with Apple Pencil. */
   AUTO_FINGER_WHITEOUT: process.env['AUTO_FINGER_WHITEOUT'] !== "disabled",