emit more events. use tput.

README.md

@@ -161,6 +161,7 @@ The base node which everything inherits from.
 ##### Events:
 
 - inherits all from EventEmitter.
+- **adopt** - received when node is added to a parent.
 - **remove** - received when node is removed from it's current parent.
 - **reparent** - received when node gains a new parent.
 

lib/program.js

@@ -41,7 +41,7 @@ function Program(options) {
   this.cols = this.output.columns || 1;
   this.rows = this.output.rows || 1;
 
-  this.terminal = process.env.TERM || 'xterm';
+  this.terminal = options.terminal || process.env.TERM || 'xterm';
 
   if (options.tput) {
     this.setupTput();
@@ -1445,7 +1445,7 @@ Program.prototype._attr = function(param, val) {
           return this._attr('default ' + m[2]);
         }
 
-        if (color < 16 || this.tput.colors <= 16) {
+        if (color < 16 || (this.tput && this.tput.colors <= 16)) {
           if (m[2] === 'fg') {
             if (color < 8) {
               color += 30;

lib/widget.js

@@ -44,8 +44,8 @@ Node.prototype.prepend = function(element) {
     this.children.unshift(element);
   }
 
-  // element.emit('reparent', this);
-  // this.emit('append', element);
+  element.emit('reparent', this);
+  this.emit('adopt', element);
 };
 
 Node.prototype.append = function(element) {
@@ -59,8 +59,8 @@ Node.prototype.append = function(element) {
     this.children.push(element);
   }
 
-  // element.emit('reparent', this);
-  // this.emit('append', element);
+  element.emit('reparent', this);
+  this.emit('adopt', element);
 };
 
 Node.prototype.remove = function(element) {
@@ -75,8 +75,8 @@ Node.prototype.remove = function(element) {
     this.focused = this.children[0];
   }
 
-  // element.emit('reparent', null);
-  // this.emit('remove', element);
+  element.emit('reparent', null);
+  this.emit('remove', element);
 };
 
 Node.prototype.detach = function(element) {
@@ -261,7 +261,7 @@ Screen.prototype.render = function() {
     el.render();
   });
   this.draw(0, this.rows - 1);
-  // this.emit('draw');
+  this.emit('draw');
 };
 
 Screen.prototype.draw = function(start, end) {
@@ -304,12 +304,15 @@ Screen.prototype.draw = function(start, end) {
         }
         continue;
       } else if (lx !== -1) {
-        //out += y === ly
-        //  ? this.program.cuf(x - lx)
-        //  : this.program.cup(y, x);
-        out += y === ly
-          ? '\x1b[' + (x - lx) + 'C'
-          : '\x1b[' + (y + 1) + ';' + (x + 1) + 'H';
+        if (this.tput) {
+          out += y === ly
+            ? this.tput.cuf(x - lx)
+            : this.tput.cup(y, x);
+        } else {
+          out += y === ly
+            ? '\x1b[' + (x - lx) + 'C'
+            : '\x1b[' + (y + 1) + ';' + (x + 1) + 'H';
+        }
         lx = -1, ly = -1;
       }
       o[x][0] = data;
@@ -352,7 +355,7 @@ Screen.prototype.draw = function(start, end) {
           }
 
           if (bgColor !== 0x1ff) {
-            if (bgColor < 16 || this.tput.colors <= 16) {
+            if (bgColor < 16 || (this.tput && this.tput.colors <= 16)) {
               if (bgColor < 8) {
                 bgColor += 40;
               } else if (bgColor < 16) {
@@ -366,7 +369,7 @@ Screen.prototype.draw = function(start, end) {
           }
 
           if (fgColor !== 0x1ff) {
-            if (fgColor < 16 || this.tput.colors <= 16) {
+            if (fgColor < 16 || (this.tput && this.tput.colors <= 16)) {
               if (fgColor < 8) {
                 fgColor += 30;
               } else if (fgColor < 16) {
@@ -393,8 +396,11 @@ Screen.prototype.draw = function(start, end) {
       out += '\x1b[m';
     }
 
-    //if (out) this.program.write(this.tput.cup(y, 1) + out);
-    if (out) this.program.write('\x1b[' + (y + 1) + ';1H' + out);
+    if (this.tput) {
+      if (out) this.program.write(this.tput.cup(y, 0) + out);
+    } else {
+      if (out) this.program.write('\x1b[' + (y + 1) + ';1H' + out);
+    }
   }
 
   this.program.restoreCursor();
@@ -571,13 +577,13 @@ Element.prototype.hide = function() {
   var ret = this.render(true);
   this.hidden = true;
   this.screen.clearRegion(ret.xi, ret.xl, ret.yi, ret.yl);
-  // this.emit('hide');
+  this.emit('hide');
 };
 
 Element.prototype.show = function() {
   this.hidden = false;
   //this.render();
-  // this.emit('show');
+  this.emit('show');
 };
 
 Element.prototype.toggle = function() {
@@ -768,7 +774,9 @@ Element.prototype.__defineSetter__('left', function(val) {
     //val = val - this.parent.left;
   }
   this.emit('move');
-  this.screen.clearRegion(this.left, this.left + this.width, this.top, this.top + this.height);
+  this.screen.clearRegion(
+    this.left, this.left + this.width,
+    this.top, this.top + this.height);
   //var left = this.left;
   //return this.options.left = this.position.left = left + (val - left);
   return this.options.left = this.position.left = val - this.parent.left;
@@ -1283,7 +1291,9 @@ function List(options) {
   }
 
   // self.on('keypress', function(ch, key) {
-  //   if (key.name === 'enter') self.emit('select');
+  //   if (key.name === 'enter') {
+  //     self.emit('select', self.items[self.selected], self.selected);
+  //   }
   // });
 }
 
@@ -1444,7 +1454,6 @@ ScrollableText.prototype.scroll = function(offset) {
     max = this._content.length - 1 - (this.height - (this.border ? 2 : 0));
     if (cb > max) this.childBase = cb = max;
 
-    // Faster:
     if (diff > 0) {
       for (i = base; i < cb; i++) this.contentIndex += this._content[i].length + 1;
     } else {

test/widget.js

@@ -1,5 +1,5 @@
 var blessed = require('blessed')
-  , program = blessed();
+  , program = blessed({ tput: true });
 
 var screen = new blessed.Screen({
   program: program