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Added tick callback #256

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Added tick callback #256

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4ed48c8
Added a `tick` hook to track everytime the dial changed.
whoacowboy Jan 3, 2015
242f8bf
Update index.html
whoacowboy Jan 3, 2015
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5 changes: 4 additions & 1 deletion index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
<title>jQuery Knob demo</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<!--[if IE]><script type="text/javascript" src="excanvas.js"></script><![endif]-->
<script src="dist/jquery.knob.min.js"></script>
<script src="js/jquery.knob.js"></script>
<script>
$(function($) {

Expand All @@ -16,6 +16,9 @@
//console.log(this.$.attr('value'));
console.log("release : " + value);
},
tick : function (value) {
console.log("tick : " + value);
},
cancel : function () {
console.log("cancel : ", this);
},
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22 changes: 17 additions & 5 deletions js/jquery.knob.js
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,7 @@
this.g = null; // deprecated 2D graphics context for 'pre-rendering'
this.v = null; // value ; mixed array or integer
this.cv = null; // change value ; not commited value
this.tv = null; // tick value ; integer
this.x = 0; // canvas x position
this.y = 0; // canvas y position
this.w = 0; // canvas width
Expand Down Expand Up @@ -126,6 +127,7 @@
change: null, // function (value) {}
cancel: null, // function () {}
release: null, // function (value) {}
tick: null, // function (value) {}

// Output formatting, allows to add unit: %, ms ...
format: function(v) {
Expand Down Expand Up @@ -159,21 +161,20 @@
function () {
var val = {};
val[k] = $this.val();
s.val(s._validate(val));
s.change(s._validate(val));
}
);
});
this.$.find('legend').remove();
} else {

// input = integer
this.i = this.$;
this.v = this.o.parse(this.$.val());
this.v === '' && (this.v = this.o.min);
this.$.bind(
'change blur',
function () {
s.val(s._validate(s.o.parse(s.$.val())));
s.change(s._validate(s.o.parse(s.$.val())));
}
);

Expand Down Expand Up @@ -467,6 +468,7 @@
this.val = function (v) {}; // on release
this.xy2val = function (x, y) {}; //
this.draw = function () {}; // on change / on release
this.tick = function () {}; // on value change
this.clear = function () { this._clear(); };

// Utils
Expand Down Expand Up @@ -525,6 +527,7 @@
&& this.rH(v) === false) { return; }

this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v;

this.v = this.cv;
this.$.val(this.o.format(this.v));
this._draw();
Expand Down Expand Up @@ -726,10 +729,19 @@
};

this.change = function (v) {
this.cv = v;
this.cv = v;
this.tick(v);
this.$.val(this.o.format(v));
};

this.tick = function (v) {
var fv = this.o.format(v);
if (this.tv != fv) {
this.tv = fv;
if (typeof(this.o.tick) === typeof(Function)){
this.o.tick(fv);
}
}
}
this.angle = function (v) {
return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
};
Expand Down