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