Merge pull request #2407 from xixixao/configure-block-select

Add configuration option for block select

lib/ace/mouse/multi_select_handler.js

@@ -84,14 +84,14 @@ function onMouseDown(e) {
     if (editor.$mouseHandler.$enableJumpToDef) {
         if (ctrl && alt || accel && alt)
             selectionMode = "add";
-        else if (alt)
+        else if (alt && editor.$blockSelectEnabled)
             selectionMode = "block";
     } else {
         if (accel && !alt) {
             selectionMode = "add";
             if (!isMultiSelect && shift)
                 return;
-        } else if (alt) {
+        } else if (alt && editor.$blockSelectEnabled) {
             selectionMode = "block";
         }
     }

lib/ace/multi_select.js

@@ -924,7 +924,8 @@ function addAltCursorListeners(editor){
     var el = editor.textInput.getElement();
     var altCursor = false;
     event.addListener(el, "keydown", function(e) {
-        if (e.keyCode == 18 && !(e.ctrlKey || e.shiftKey || e.metaKey)) {
+        var altDown = e.keyCode == 18 && !(e.ctrlKey || e.shiftKey || e.metaKey);
+        if (editor.$blockSelectEnabled && altDown) {
             if (!altCursor) {
                 editor.renderer.setMouseCursor("crosshair");
                 altCursor = true;
@@ -962,6 +963,12 @@ require("./config").defineOptions(Editor.prototype, "editor", {
             }
         },
         value: true
+    },
+    enableBlockSelect: {
+        set: function(val) {
+            this.$blockSelectEnabled = val;
+        },
+        value: true
     }
 });