fix label scroll. improve search. add features to ansi-viewer.

example/ansi-viewer/index.js

@@ -11,7 +11,7 @@ var blessed = require('../../')
   , screen;
 
 // $ wget -r -o log --tries=10 'http://artscene.textfiles.com/ansi/'
-// $ grep 'http.*\.ans$' log | awk '{ print $3 }' > blessed/ansi-art.list
+// $ grep 'http.*\.ans$' log | awk '{ print $3 }' > ansi-art.list
 
 var urls = fs.readFileSync(__dirname + '/ansi-art.list', 'utf8').trim().split('\n');
 
@@ -57,7 +57,6 @@ var list = blessed.list({
     }
   },
   style: {
-    //transparent: true,
     item: {
       hover: {
         bg: 'blue'
@@ -67,6 +66,12 @@ var list = blessed.list({
       bg: 'blue',
       bold: true
     }
+  },
+  search: function(callback) {
+    prompt.input('Search:', '', function(err, value) {
+      if (err) return;
+      return callback(value);
+    });
   }
 });
 
@@ -78,24 +83,84 @@ var status = blessed.box({
   width: 'shrink',
   style: {
     bg: 'blue'
-  }
+  },
+  content: 'Select your piece of ANSI art (`/` to search).'
+});
+
+var loader = blessed.loading({
+  parent: screen,
+  top: 'center',
+  left: 'center',
+  height: 5,
+  align: 'center',
+  width: '50%',
+  tags: true,
+  hidden: true,
+  border: 'line'
+});
+
+var msg = blessed.message({
+  parent: screen,
+  top: 'center',
+  left: 'center',
+  height: 'shrink',
+  width: '50%',
+  align: 'center',
+  tags: true,
+  hidden: true,
+  border: 'line'
+});
+
+var prompt = blessed.prompt({
+  parent: screen,
+  top: 'center',
+  left: 'center',
+  height: 'shrink',
+  width: 'shrink',
+  keys: true,
+  vi: true,
+  mouse: true,
+  tags: true,
+  content: 'Label:',
+  border: 'line',
+  hidden: true
 });
 
 list.setItems(Object.keys(map));
 
 list.on('select', function(url, selected) {
+  if (list._.rendering) return;
+
   url = map[url.getText()];
   status.setContent(url);
+
+  list._.rendering = true;
+  loader.load('Loading...');
+
   request(url, function(err, res, body) {
-    if (err || !body) return;
+    list._.rendering = false;
+    loader.stop();
+
+    if (err) {
+      return msg.error(err.message);
+    }
+
+    if (!body) {
+      return msg.error('No body.');
+    }
+
+    // Remove MCI codes:
+    body = body.replace(/%[A-Z]{2}/g, '');
+
+    // Reset and write the art:
     art.term.reset();
     art.term.write(body);
     art.term.cursorHidden = true;
+
     screen.render();
   });
 });
 
-list.select(0);
 list.focus();
 
 screen.key('q', function() {

lib/widget.js

@@ -2884,13 +2884,23 @@ Element.prototype.setLabel = function(options) {
     this._label.rtop = 0;
   }
 
-  this.on('scroll', function() {
+  var reposition = function() {
     var visible = self.height - self.iheight;
     self._label.rtop = self.childBase - (self.border ? 1 : 0);
     if (!self.screen.autoPadding) {
       self._label.rtop = self.childBase;
     }
     self.screen.render();
+  };
+
+  this.on('scroll', function() {
+    reposition();
+  });
+
+  this.on('resize', function() {
+    nextTick(function() {
+      reposition();
+    });
   });
 };
 
@@ -5119,15 +5129,14 @@ function List(options) {
         return;
       }
 
-      if (options.vi && key.ch === '/') {
+      if (options.vi && (key.ch === '/' || key.ch === '?')) {
         if (typeof self.options.search !== 'function') {
           return;
         }
-
-        return self.options.search(function(searchString) {
-          self.select(self.fuzzyFind(searchString));
+        return self.options.search(function(value) {
+          self.select(self.fuzzyFind(value, key.ch === '?'));
           self.screen.render();
-        })
+        });
       }
     });
   }
@@ -5235,12 +5244,26 @@ List.prototype.appendItem = function(item) {
   }
 };
 
-List.prototype.fuzzyFind = function(search) {
+List.prototype.fuzzyFind = function(search, back) {
   var index = this.getItemIndex(this.selected);
+  var start = this.selected + (back ? -1 : 1);
+  var finder = typeof search === 'string'
+    ? function(item) { return !!~item.indexOf(search); }
+    : search.test.bind(search);
 
-  for (var i = 0; i < this.ritems.length; i++){
-    if (this.ritems[i].indexOf(search) === 0) {
-      return i;
+  if (!back) {
+    for (var i = start; i < this.ritems.length; i++){
+      if (finder(this.ritems[i])) return i;
+    }
+    for (var i = 0; i < start; i++){
+      if (finder(this.ritems[i])) return i;
+    }
+  } else {
+    for (var i = start; i >= 0; i--){
+      if (finder(this.ritems[i])) return i;
+    }
+    for (var i = this.ritems.length - 1; i > start; i--){
+      if (finder(this.ritems[i])) return i;
     }
   }