jsketch/dist/sketchable.min.js

!function(a){function b(a,b){if(!a)throw new Error("Sketchable requires a DOM element.");return"string"==typeof a&&(a=r.querySelector(a)),this.elem=a,this.init(b)}function c(b){var c=b.getBoundingClientRect(),d=r.body,e=r.documentElement,f=a.pageYOffset||e.scrollTop||d.scrollTop,g=a.pageXOffset||e.scrollLeft||d.scrollLeft,h=e.clientTop||d.clientTop||0,i=e.clientLeft||d.clientLeft||0,j=c.top+f-h,k=c.left+g-i;return{top:Math.round(j),left:Math.round(k)}}function d(a,b){b||(b=dataBind(a)[q].options),b.cssCursors&&(a.style.cursor=b.interactive?"pointer":"not-allowed"),a.onselectstart=function(){return!1}}function e(a){var b=a.target,d=c(b);return{x:Math.round(a.pageX-d.left),y:Math.round(a.pageY-d.top)}}function f(a,b,c){var d=b.coords[a],e=(new Date).getTime();if(b.options.relTimestamps&&(0===b.strokes.length&&0===d.length&&(b.timestamp=e),e-=b.timestamp),d.push([c.x,c.y,e,+b.sketch.isDrawing]),b.options.filterCoords&&d.length>1){var f=d.length-1,g=d[f],h=d[f-1];g[0]==h[0]&&g[1]==h[1]&&d.splice(f,1)}}function g(a){return a.touches?!1:void m(a)}function h(a){return a.touches?!1:void n(a)}function i(a){return a.touches?!1:void o(a)}function j(a){p(a,m),a.preventDefault()}function k(a){p(a,n),a.preventDefault()}function l(a){p(a,o),a.preventDefault()}function m(a){if(Event.isRightClick(a))return!1;var b=a.identifier||0,c=a.target,d=dataBind(c)[q],g=d.options;if(g.interactive){d.sketch.isDrawing=!0;var h=e(a);g.graphics.firstPointSize>0&&d.sketch.beginFill(g.graphics.fillStyle).fillCircle(h.x,h.y,g.graphics.firstPointSize).endFill();var i=d.coords[b];i||(i=[]),i.length>0&&d.strokes.push(i),d.coords[b]=[],f(b,d,h),"function"==typeof g.events.mousedown&&g.events.mousedown(c,d,a)}}function n(a){var b=a.identifier||0;if(elem=a.target,data=dataBind(elem)[q],options=data.options,options.interactive&&(options.mouseupMovements&&0!==data.strokes.length||data.sketch.isDrawing)){var c=e(a),d=data.coords[b],g=d[d.length-1];if(g){var h=data.sketch.beginPath();data.sketch.isDrawing?h.lineStyle(options.graphics.strokeStyle,options.graphics.lineWidth):options.mouseupMovements.visible!==!1&&h.lineStyle(options.mouseupMovements.strokeStyle||"#DDD",options.mouseupMovements.lineWidth||1),h.line(g[0],g[1],c.x,c.y).stroke().closePath()}f(b,data,c),"function"==typeof options.events.mousemove&&options.events.mousemove(elem,data,a)}}function o(a){var b=a.identifier||0;elem=a.target,data=dataBind(elem)[q],options=data.options,options.interactive&&(data.sketch.isDrawing=!1,data.strokes.push(data.coords[b]),data.coords[b]=[],"function"==typeof options.events.mouseup&&options.events.mouseup(elem,data,a))}function p(a,b){var c=a.target,d=dataBind(c)[q],e=d.options;if(e.multitouch)for(var f=a.changedTouches,g=0;g<f.length;g++){var h=f[g];h.type=a.type,h.identifier=g,b(h)}else{var h=a.touches[0];h.type=a.type,h.identifier=0,b(h)}a.preventDefault()}var q="sketchable",r=a.document;b.prototype={init:function(a){var a=deepExtend({},b.prototype.defaults,a||{}),c=this.elem,e=dataBind(c)[q];e||(Event.add(c,"mousedown",g),Event.add(c,"mousemove",h),Event.add(c,"mouseup",i),Event.add(c,"touchstart",j),Event.add(c,"touchmove",k),Event.add(c,"touchend",l),d(c,a));var f=new jSketch(c,a.graphics);dataBind(c)[q]=e={strokes:[],coords:{},timestamp:(new Date).getTime(),sketch:f,instance:this,options:a},"function"==typeof a.events.init&&a.events.init(c,e);for(var m in this.plugins)this.plugins[m](this);return this},config:function(a){var c=this.elem,e=dataBind(c)[q];return a?(e.options=deepExtend({},b.prototype.defaults,e.options,a),d(c),this):e},strokes:function(a){var b=this.elem;if(a){var c=dataBind(b)[q];return c.strokes=a,this}var c=dataBind(b)[q];return c.strokes},handler:function(a){var b=this.elem,c=dataBind(b)[q];return a(b,c),this},clear:function(){var a=this.elem,b=dataBind(a)[q],c=b.options;return b.sketch.clear(),b.strokes=[],b.coords={},"function"==typeof c.events.clear&&c.events.clear(a,b),this},reset:function(a){var b=this.elem,c=dataBind(b)[q],a=c.options;return this.destroy().init(a),"function"==typeof a.events.reset&&a.events.reset(b,c),this},destroy:function(){var a=this.elem,b=dataBind(a)[q],c=b.options;return Event.remove(a,"mouseup",i),Event.remove(a,"mousemove",h),Event.remove(a,"mousedown",g),Event.remove(a,"touchstart",j),Event.remove(a,"touchmove",k),Event.remove(a,"touchend",l),dataBind(a)[q]=null,"function"==typeof c.events.destroy&&c.events.destroy(a,b),this}},b.prototype.plugins={},b.prototype.defaults={interactive:!0,mouseupMovements:!1,relTimestamps:!1,multitouch:!0,cssCursors:!0,filterCoords:!1,events:{},graphics:{firstPointSize:3,lineWidth:3,strokeStyle:"#F0F",fillStyle:"#F0F",lineCap:"round",lineJoin:"round",miterLimit:10}},a.Sketchable=b}(this);