init

02-ui/05-widgets/02-widgets-structure/07-voter-add-doublevote/solution/voter.js

@@ -0,0 +1,36 @@
+
+function Voter(options) {
+  var elem = this._elem = options.elem;
+  this._voteElem = elem.find('.vote');
+  this._vote = 0;
+
+  elem.on('mousedown selectstart', false);
+
+  elem.on('click', '.down', this._onDownClick.bind(this));
+  elem.on('click', '.up', this._onUpClick.bind(this));
+}
+
+Voter.prototype._onDownClick = function() {
+  this._decrease();
+};
+
+Voter.prototype._onUpClick = function() {
+  this._increase();
+};
+
+Voter.prototype._renderVote = function() {
+  this._voteElem.html(this._vote);
+};
+
+Voter.prototype.setVote = function(vote) {
+  this._vote = vote;
+  this._renderVote();
+};
+
+Voter.prototype._increase = function() {
+  this.setVote(this._vote + 1);
+};
+
+Voter.prototype._decrease = function() {
+  this.setVote(this._vote - 1);
+};