add "interactive" option for lists. fixes #103.

README.md

@@ -569,7 +569,12 @@ A scrollable list which can display selectable items.
 - **keys** - use predefined keys for navigating the list.
 - **vi** - use vi keys with the `keys` option.
 - **items** - an array of strings which become the list's items.
-- **search** - a function that is called when `vi` mode is enabled and the key `/` is pressed. This function accepts a callback function which should be called with the search string. The search string is then used to jump to an item that is found in `items`.
+- **search** - a function that is called when `vi` mode is enabled and the key
+  `/` is pressed. This function accepts a callback function which should be
+  called with the search string. The search string is then used to jump to an
+  item that is found in `items`.
+- **interactive** - whether the list is interactive or can have items selected
+  (default: true).
 
 ##### Properties:
 

lib/widget.js

@@ -3384,7 +3384,7 @@ Element.prototype.render = function() {
           ci += c[0].length - 1;
           attr = this.screen.attrCode(c[0], attr, dattr);
           // Ignore foreground changes for selected items.
-          if (this.parent._isList
+          if (this.parent._isList && this.parent.interactive
               && this.parent.items[this.parent.selected] === this) {
             attr = (attr & ~(0x1ff << 9)) | (dattr & (0x1ff << 9));
           }
@@ -4229,6 +4229,8 @@ function List(options) {
     this.style.item.focus = this.options.itemFocusEffects;
   }
 
+  this.interactive = options.interactive !== false;
+
   this.mouse = options.mouse || false;
 
   if (options.items) {
@@ -4399,7 +4401,7 @@ List.prototype.appendItem = function(item) {
   ['bg', 'fg', 'bold', 'underline',
    'blink', 'inverse', 'invisible'].forEach(function(name) {
     options[name] = function() {
-      var attr = self.items[self.selected] === item
+      var attr = self.items[self.selected] === item && self.interactive
         ? self.style.selected[name]
         : self.style.item[name];
       if (typeof attr === 'function') attr = attr(item);
@@ -4506,6 +4508,10 @@ List.prototype.setItems = function(items) {
 };
 
 List.prototype.select = function(index) {
+  if (!this.interactive) {
+    return;
+  }
+
   if (!this.items.length) {
     this.selected = 0;
     this.value = '';
@@ -4549,6 +4555,10 @@ List.prototype.pick = function(label, callback) {
     label = null;
   }
 
+  if (!this.interactive) {
+    return callback();
+  }
+
   var self = this;
   var focused = this.screen.focused;
   if (focused && focused._done) focused._done('stop');