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9 lines
17 KiB
JavaScript
9 lines
17 KiB
JavaScript
/*!
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* Cropper v0.7.6-beta
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* https://github.com/fengyuanchen/cropper
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*
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* Copyright 2014 Fengyuan Chen
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* Released under the MIT license
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*/
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!function(a){"function"==typeof define&&define.amd?define(["jquery"],a):a("object"==typeof exports?require("jquery"):jQuery)}(function(a){"use strict";var b=a(window),c=a(document),d=window.location,e=!0,f=!1,g=null,h=0/0,i=1/0,j="undefined",k="directive",l=".cropper",m=/^(e|n|w|s|ne|nw|sw|se|all|crop|move|zoom)$/,n=/^(x|y|width|height)$/,o=/^(naturalWidth|naturalHeight|width|height|aspectRatio|ratio|rotate)$/,p="cropper-modal",q="cropper-hidden",r="cropper-invisible",s="cropper-move",t="cropper-crop",u="cropper-disabled",v="mousedown touchstart",w="mousemove touchmove",x="mouseup mouseleave touchend touchleave touchcancel",y="wheel mousewheel DOMMouseScroll",z="resize"+l,A="dblclick",B="build"+l,C="built"+l,D="dragstart"+l,E="dragmove"+l,F="dragend"+l,G=function(a){return"number"==typeof a},H=function(b,c){this.element=b,this.$element=a(b),this.defaults=a.extend({},H.DEFAULTS,a.isPlainObject(c)?c:{}),this.$original=g,this.ready=f,this.built=f,this.cropped=f,this.rotated=f,this.disabled=f,this.replaced=f,this.init()},I=Math.round,J=Math.sqrt,K=Math.min,L=Math.max,M=Math.abs,N=Math.sin,O=Math.cos,P=parseFloat;H.prototype={constructor:H,support:{canvas:a.isFunction(a("<canvas>")[0].getContext)},init:function(){var b=this.defaults;a.each(b,function(a,c){switch(a){case"aspectRatio":b[a]=M(P(c))||h;break;case"autoCropArea":b[a]=M(P(c))||.8;break;case"minWidth":case"minHeight":b[a]=M(P(c))||0;break;case"maxWidth":case"maxHeight":b[a]=M(P(c))||i}}),this.image={rotate:0},this.load()},load:function(){var b,c,d=this,f=this.$element,g=this.element,h=this.image,i="";f.is("img")?c=f.prop("src"):f.is("canvas")&&this.support.canvas&&(c=g.toDataURL()),c&&(this.replaced&&(h.rotate=0),this.defaults.checkImageOrigin&&(f.prop("crossOrigin")||this.isCrossOriginURL(c))&&(i=" crossOrigin"),this.$clone=b=a("<img"+i+' src="'+c+'">'),b.one("load",function(){h.naturalWidth=this.naturalWidth||b.width(),h.naturalHeight=this.naturalHeight||b.height(),h.aspectRatio=h.naturalWidth/h.naturalHeight,d.url=c,d.ready=e,d.build()}),b.addClass(r).prependTo("body"))},isCrossOriginURL:function(a){var b=a.match(/^(https?:)\/\/([^\:\/\?#]+):?(\d*)/i);return!b||b[1]===d.protocol&&b[2]===d.hostname&&b[3]===d.port?f:e},build:function(){var b,d,f=this.$element,g=this.defaults;this.ready&&(this.built&&this.unbuild(),f.one(B,g.build),b=a.Event(B),f.trigger(b),b.isDefaultPrevented()||(this.$cropper=d=a(H.TEMPLATE),f.addClass(q),this.$clone.removeClass(r).prependTo(d),this.rotated||(this.$original=this.$clone.clone(),this.$original.addClass(q).prependTo(this.$cropper),this.originalImage=a.extend({},this.image)),this.$container=f.parent(),this.$container.append(d),this.$canvas=d.find(".cropper-canvas"),this.$dragger=d.find(".cropper-dragger"),this.$viewer=d.find(".cropper-viewer"),g.autoCrop?this.cropped=e:this.$dragger.addClass(q),g.dragCrop&&this.setDragMode("crop"),g.modal&&this.$canvas.addClass(p),!g.dashed&&this.$dragger.find(".cropper-dashed").addClass(q),!g.movable&&this.$dragger.find(".cropper-face").data(k,"move"),!g.resizable&&this.$dragger.find(".cropper-line, .cropper-point").addClass(q),this.$scope=g.multiple?this.$cropper:c,this.addListeners(),this.initPreview(),this.built=e,this.update(),f.one(C,g.built),f.trigger(C)))},unbuild:function(){this.built&&(this.built=f,this.removeListeners(),this.$preview.empty(),this.$preview=g,this.$dragger=g,this.$canvas=g,this.$container=g,this.$cropper.remove(),this.$cropper=g)},update:function(a){this.initContainer(),this.initCropper(),this.initImage(),this.initDragger(),a?(this.setData(a,e),this.setDragMode("crop")):this.setData(this.defaults.data)},resize:function(){clearTimeout(this.resizing),this.resizing=setTimeout(a.proxy(this.update,this,this.getData()),200)},preview:function(){var b=this.image,c=this.dragger,d=b.width,e=b.height,f=c.left-b.left,g=c.top-b.top;this.$viewer.find("img").css({width:I(d),height:I(e),marginLeft:-I(f),marginTop:-I(g)}),this.$preview.each(function(){var b=a(this),h=b.width()/c.width;b.find("img").css({width:I(d*h),height:I(e*h),marginLeft:-I(f*h),marginTop:-I(g*h)})})},addListeners:function(){var c=this.defaults;this.$element.on(D,c.dragstart).on(E,c.dragmove).on(F,c.dragend),this.$cropper.on(v,this._dragstart=a.proxy(this.dragstart,this)).on(A,this._dblclick=a.proxy(this.dblclick,this)),c.zoomable&&this.$cropper.on(y,this._wheel=a.proxy(this.wheel,this)),this.$scope.on(w,this._dragmove=a.proxy(this.dragmove,this)).on(x,this._dragend=a.proxy(this.dragend,this)),b.on(z,this._resize=a.proxy(this.resize,this))},removeListeners:function(){var a=this.defaults;this.$element.off(D,a.dragstart).off(E,a.dragmove).off(F,a.dragend),this.$cropper.off(v,this._dragstart).off(A,this._dblclick),a.zoomable&&this.$cropper.off(y,this._wheel),this.$scope.off(w,this._dragmove).off(x,this._dragend),b.off(z,this._resize)},initPreview:function(){var b='<img src="'+this.url+'">';this.$preview=a(this.defaults.preview),this.$viewer.html(b),this.$preview.html(b).find("img").css("cssText","min-width:0!important;min-height:0!important;max-width:none!important;max-height:none!important;")},initContainer:function(){var a=this.$container;this.container={width:L(a.width(),300),height:L(a.height(),150)}},initCropper:function(){var a,b=this.container,c=this.image;c.naturalWidth*b.height/c.naturalHeight-b.width>=0?(a={width:b.width,height:b.width/c.aspectRatio,left:0},a.top=(b.height-a.height)/2):(a={width:b.height*c.aspectRatio,height:b.height,top:0},a.left=(b.width-a.width)/2),this.$cropper.css({width:I(a.width),height:I(a.height),left:I(a.left),top:I(a.top)}),this.cropper=a},initImage:function(){var b=this.image,c=this.cropper,d={_width:c.width,_height:c.height,width:c.width,height:c.height,left:0,top:0,ratio:c.width/b.naturalWidth};this.defaultImage=a.extend({},b,d),b._width!==c.width||b._height!==c.height?a.extend(b,d):(b=a.extend({},d,b),this.replaced&&(this.replaced=f,b.ratio=d.ratio)),this.image=b,this.renderImage()},renderImage:function(a){var b=this.image;"zoom"===a&&(b.left-=(b.width-b.oldWidth)/2,b.top-=(b.height-b.oldHeight)/2),b.left=K(L(b.left,b._width-b.width),0),b.top=K(L(b.top,b._height-b.height),0),this.$clone.css({width:I(b.width),height:I(b.height),marginLeft:I(b.left),marginTop:I(b.top)}),a&&(this.defaults.done(this.getData()),this.preview())},initDragger:function(){var b,c=this.defaults,d=this.cropper,e=c.aspectRatio||this.image.aspectRatio,f=this.image.ratio;b=d.height*e-d.width>=0?{height:d.width/e,width:d.width,left:0,top:(d.height-d.width/e)/2,maxWidth:d.width,maxHeight:d.width/e}:{height:d.height,width:d.height*e,left:(d.width-d.height*e)/2,top:0,maxWidth:d.height*e,maxHeight:d.height},b.minWidth=0,b.minHeight=0,c.aspectRatio?(isFinite(c.maxWidth)?(b.maxWidth=K(b.maxWidth,c.maxWidth*f),b.maxHeight=b.maxWidth/e):isFinite(c.maxHeight)&&(b.maxHeight=K(b.maxHeight,c.maxHeight*f),b.maxWidth=b.maxHeight*e),c.minWidth>0?(b.minWidth=L(0,c.minWidth*f),b.minHeight=b.minWidth/e):c.minHeight>0&&(b.minHeight=L(0,c.minHeight*f),b.minWidth=b.minHeight*e)):(b.maxWidth=K(b.maxWidth,c.maxWidth*f),b.maxHeight=K(b.maxHeight,c.maxHeight*f),b.minWidth=L(0,c.minWidth*f),b.minHeight=L(0,c.minHeight*f)),b.minWidth=K(b.maxWidth,b.minWidth),b.minHeight=K(b.maxHeight,b.minHeight),b.height*=c.autoCropArea,b.width*=c.autoCropArea,b.left=(d.width-b.width)/2,b.top=(d.height-b.height)/2,b.oldLeft=b.left,b.oldTop=b.top,this.defaultDragger=b,this.dragger=a.extend({},b)},renderDragger:function(){var a=this.dragger,b=this.cropper;a.width>a.maxWidth?(a.width=a.maxWidth,a.left=a.oldLeft):a.width<a.minWidth&&(a.width=a.minWidth,a.left=a.oldLeft),a.height>a.maxHeight?(a.height=a.maxHeight,a.top=a.oldTop):a.height<a.minHeight&&(a.height=a.minHeight,a.top=a.oldTop),a.left=K(L(a.left,0),b.width-a.width),a.top=K(L(a.top,0),b.height-a.height),a.oldLeft=a.left,a.oldTop=a.top,this.dragger=a,this.disabled||this.defaults.done(this.getData()),this.$dragger.css({width:I(a.width),height:I(a.height),left:I(a.left),top:I(a.top)}),this.preview()},reset:function(b){this.cropped&&(b&&(this.defaults.data={}),this.image=a.extend({},this.defaultImage),this.renderImage(),this.dragger=a.extend({},this.defaultDragger),this.setData(this.defaults.data))},clear:function(){this.cropped&&(this.cropped=f,this.setData({x:0,y:0,width:0,height:0}),this.$canvas.removeClass(p),this.$dragger.addClass(q))},destroy:function(){var a=this.$element;this.ready&&(this.unbuild(),a.removeClass(q).removeData("cropper"),this.rotated&&a.attr("src",this.$original.attr("src")))},replace:function(b,c){var d,g=this,h=this.$element,i=this.element;b&&b!==this.url&&b!==h.attr("src")&&(c||(this.rotated=f,this.replaced=e),h.is("img")?(h.attr("src",b),this.load()):h.is("canvas")&&this.support.canvas&&(d=i.getContext("2d"),a('<img src="'+b+'">').one("load",function(){i.width=this.width,i.height=this.height,d.clearRect(0,0,i.width,i.height),d.drawImage(this,0,0),g.load()})))},setData:function(b,c){var d=this.cropper,e=this.dragger,f=this.image,h=this.defaults.aspectRatio;this.built&&typeof b!==j&&((b===g||a.isEmptyObject(b))&&(e=a.extend({},this.defaultDragger)),a.isPlainObject(b)&&!a.isEmptyObject(b)&&(c||(this.defaults.data=b),b=this.transformData(b),G(b.x)&&b.x<=d.width-f.left&&(e.left=b.x+f.left),G(b.y)&&b.y<=d.height-f.top&&(e.top=b.y+f.top),h?G(b.width)&&b.width<=e.maxWidth&&b.width>=e.minWidth?(e.width=b.width,e.height=e.width/h):G(b.height)&&b.height<=e.maxHeight&&b.height>=e.minHeight&&(e.height=b.height,e.width=e.height*h):(G(b.width)&&b.width<=e.maxWidth&&b.width>=e.minWidth&&(e.width=b.width),G(b.height)&&b.height<=e.maxHeight&&b.height>=e.minHeight&&(e.height=b.height))),this.dragger=e,this.renderDragger())},getData:function(a){var b=this.dragger,c=this.image,d={};return this.built&&(d={x:b.left-c.left,y:b.top-c.top,width:b.width,height:b.height},d=this.transformData(d,e,a)),d},transformData:function(b,c,d){var e=this.image.ratio,f={};return a.each(b,function(a,b){b=P(b),n.test(a)&&!isNaN(b)&&(f[a]=c?d?I(b/e):b/e:b*e)}),f},setAspectRatio:function(a){var b="auto"===a;a=P(a),(b||!isNaN(a)&&a>0)&&(this.defaults.aspectRatio=b?h:a,this.built&&(this.initDragger(),this.renderDragger()))},getImageData:function(){var b={};return this.ready&&a.each(this.image,function(a,c){o.test(a)&&(b[a]=c)}),b},getDataURL:function(b,c,d){var e,f=a("<canvas>")[0],g=this.getData(),h="";return a.isPlainObject(b)||(d=c,c=b,b={}),b=a.extend({width:g.width,height:g.height},b),this.cropped&&this.support.canvas&&(f.width=b.width,f.height=b.height,e=f.getContext("2d"),"image/jpeg"===c&&(e.fillStyle="#fff",e.fillRect(0,0,b.width,b.height)),e.drawImage(this.$clone[0],g.x,g.y,g.width,g.height,0,0,b.width,b.height),h=f.toDataURL(c,d)),h},setDragMode:function(a){var b=this.$canvas,c=this.defaults,d=f,g=f;if(this.built&&!this.disabled){switch(a){case"crop":c.dragCrop&&(d=e,b.data(k,a));break;case"move":g=e,b.data(k,a);break;default:b.removeData(k)}b.toggleClass(t,d).toggleClass(s,g)}},enable:function(){this.built&&(this.disabled=f,this.$cropper.removeClass(u))},disable:function(){this.built&&(this.disabled=e,this.$cropper.addClass(u))},rotate:function(a){var b=this.image;a=P(a)||0,this.built&&0!==a&&!this.disabled&&this.defaults.rotatable&&this.support.canvas&&(this.rotated=e,a=b.rotate=(b.rotate+a)%360,this.replace(this.getRotatedDataURL(a),!0))},getRotatedDataURL:function(b){var c=a("<canvas>")[0],d=c.getContext("2d"),e=b*Math.PI/180,f=M(b)%180,g=f>90?180-f:f,h=g*Math.PI/180,i=this.originalImage,j=i.naturalWidth,k=i.naturalHeight,l=M(j*O(h)+k*N(h)),m=M(j*N(h)+k*O(h));return c.width=l,c.height=m,d.save(),d.translate(l/2,m/2),d.rotate(e),d.drawImage(this.$original[0],-j/2,-k/2,j,k),d.restore(),c.toDataURL()},zoom:function(a){var b,c,d,e=this.image;a=P(a),this.built&&a&&!this.disabled&&this.defaults.zoomable&&(b=e.width*(1+a),c=e.height*(1+a),d=b/e._width,d>10||(1>d&&(b=e._width,c=e._height),this.setDragMode(1>=d?"crop":"move"),e.oldWidth=e.width,e.oldHeight=e.height,e.width=b,e.height=c,e.ratio=e.width/e.naturalWidth,this.renderImage("zoom")))},dblclick:function(){this.disabled||this.setDragMode(this.$canvas.hasClass(t)?"move":"crop")},wheel:function(a){var b,c=a.originalEvent,d=117.25,e=5,f=166.66665649414062,g=.1;this.disabled||(a.preventDefault(),c.deltaY?(b=c.deltaY,b=b%e===0?b/e:b%d===0?b/d:b/f):b=c.wheelDelta?-c.wheelDelta/120:c.detail?c.detail/3:0,this.zoom(b*g))},dragstart:function(b){var c,d,g,h=b.originalEvent.touches,i=b;if(!this.disabled){if(h){if(g=h.length,g>1){if(!this.defaults.zoomable||2!==g)return;i=h[1],this.startX2=i.pageX,this.startY2=i.pageY,c="zoom"}i=h[0]}if(c=c||a(i.target).data(k),m.test(c)){if(b.preventDefault(),d=a.Event(D),this.$element.trigger(d),d.isDefaultPrevented())return;this.directive=c,this.cropping=f,this.startX=i.pageX,this.startY=i.pageY,"crop"===c&&(this.cropping=e,this.$canvas.addClass(p))}}},dragmove:function(b){var c,d,e=b.originalEvent.touches,f=b;if(!this.disabled){if(e){if(d=e.length,d>1){if(!this.defaults.zoomable||2!==d)return;f=e[1],this.endX2=f.pageX,this.endY2=f.pageY}f=e[0]}if(this.directive){if(b.preventDefault(),c=a.Event(E),this.$element.trigger(c),c.isDefaultPrevented())return;this.endX=f.pageX,this.endY=f.pageY,this.dragging()}}},dragend:function(b){var c;if(!this.disabled&&this.directive){if(b.preventDefault(),c=a.Event(F),this.$element.trigger(c),c.isDefaultPrevented())return;this.cropping&&(this.cropping=f,this.$canvas.toggleClass(p,this.cropped&&this.defaults.modal)),this.directive=""}},dragging:function(){var a,b=this.directive,c=this.image,d=this.cropper,g=d.width,h=d.height,i=this.dragger,j=i.width,k=i.height,l=i.left,m=i.top,n=l+j,o=m+k,p=e,r=this.defaults,s=r.aspectRatio,t={x:this.endX-this.startX,y:this.endY-this.startY};switch(s&&(t.X=t.y*s,t.Y=t.x/s),b){case"all":l+=t.x,m+=t.y;break;case"e":if(t.x>=0&&(n>=g||s&&(0>=m||o>=h))){p=f;break}j+=t.x,s&&(k=j/s,m-=t.Y/2),0>j&&(b="w",j=0);break;case"n":if(t.y<=0&&(0>=m||s&&(0>=l||n>=g))){p=f;break}k-=t.y,m+=t.y,s&&(j=k*s,l+=t.X/2),0>k&&(b="s",k=0);break;case"w":if(t.x<=0&&(0>=l||s&&(0>=m||o>=h))){p=f;break}j-=t.x,l+=t.x,s&&(k=j/s,m+=t.Y/2),0>j&&(b="e",j=0);break;case"s":if(t.y>=0&&(o>=h||s&&(0>=l||n>=g))){p=f;break}k+=t.y,s&&(j=k*s,l-=t.X/2),0>k&&(b="n",k=0);break;case"ne":if(s){if(t.y<=0&&(0>=m||n>=g)){p=f;break}k-=t.y,m+=t.y,j=k*s}else t.x>=0?g>n?j+=t.x:t.y<=0&&0>=m&&(p=f):j+=t.x,t.y<=0?m>0&&(k-=t.y,m+=t.y):(k-=t.y,m+=t.y);0>k&&(b="sw",k=0,j=0);break;case"nw":if(s){if(t.y<=0&&(0>=m||0>=l)){p=f;break}k-=t.y,m+=t.y,j=k*s,l+=t.X}else t.x<=0?l>0?(j-=t.x,l+=t.x):t.y<=0&&0>=m&&(p=f):(j-=t.x,l+=t.x),t.y<=0?m>0&&(k-=t.y,m+=t.y):(k-=t.y,m+=t.y);0>k&&(b="se",k=0,j=0);break;case"sw":if(s){if(t.x<=0&&(0>=l||o>=h)){p=f;break}j-=t.x,l+=t.x,k=j/s}else t.x<=0?l>0?(j-=t.x,l+=t.x):t.y>=0&&o>=h&&(p=f):(j-=t.x,l+=t.x),t.y>=0?h>o&&(k+=t.y):k+=t.y;0>j&&(b="ne",k=0,j=0);break;case"se":if(s){if(t.x>=0&&(n>=g||o>=h)){p=f;break}j+=t.x,k=j/s}else t.x>=0?g>n?j+=t.x:t.y>=0&&o>=h&&(p=f):j+=t.x,t.y>=0?h>o&&(k+=t.y):k+=t.y;0>j&&(b="nw",k=0,j=0);break;case"move":c.left+=t.x,c.top+=t.y,this.renderImage("move"),p=f;break;case"zoom":r.zoomable&&(this.zoom(function(a,b,c,d,e,f){return(J(e*e+f*f)-J(c*c+d*d))/J(a*a+b*b)}(c.width,c.height,M(this.startX-this.startX2),M(this.startY-this.startY2),M(this.endX-this.endX2),M(this.endY-this.endY2))),this.endX2=this.startX2,this.endY2=this.startY2);break;case"crop":t.x&&t.y&&(a=this.$cropper.offset(),l=this.startX-a.left,m=this.startY-a.top,j=i.minWidth,k=i.minHeight,t.x>0?t.y>0?b="se":(b="ne",m-=k):t.y>0?(b="sw",l-=j):(b="nw",l-=j,m-=k),this.cropped||(this.cropped=e,this.$dragger.removeClass(q)))}p&&(i.width=j,i.height=k,i.left=l,i.top=m,this.directive=b,this.renderDragger()),this.startX=this.endX,this.startY=this.endY}},H.TEMPLATE=function(a,b){return b=b.split(","),a.replace(/\d+/g,function(a){return b[a]})}('<0 6="5-container"><0 6="5-canvas"></0><0 6="5-dragger"><1 6="5-viewer"></1><1 6="5-8 8-h"></1><1 6="5-8 8-v"></1><1 6="5-face" 3-2="all"></1><1 6="5-7 7-e" 3-2="e"></1><1 6="5-7 7-n" 3-2="n"></1><1 6="5-7 7-w" 3-2="w"></1><1 6="5-7 7-s" 3-2="s"></1><1 6="5-4 4-e" 3-2="e"></1><1 6="5-4 4-n" 3-2="n"></1><1 6="5-4 4-w" 3-2="w"></1><1 6="5-4 4-s" 3-2="s"></1><1 6="5-4 4-ne" 3-2="ne"></1><1 6="5-4 4-nw" 3-2="nw"></1><1 6="5-4 4-sw" 3-2="sw"></1><1 6="5-4 4-se" 3-2="se"></1></0></0>',"div,span,directive,data,point,cropper,class,line,dashed"),H.DEFAULTS={aspectRatio:"auto",autoCropArea:.8,data:{},done:a.noop,preview:"",multiple:f,autoCrop:e,dragCrop:e,dashed:e,modal:e,movable:e,resizable:e,zoomable:e,rotatable:e,checkImageOrigin:e,minWidth:0,minHeight:0,maxWidth:i,maxHeight:i,build:g,built:g,dragstart:g,dragmove:g,dragend:g},H.setDefaults=function(b){a.extend(H.DEFAULTS,b)},H.other=a.fn.cropper,a.fn.cropper=function(b){var c,d=[].slice.call(arguments,1);return this.each(function(){var e,f=a(this),g=f.data("cropper");g||f.data("cropper",g=new H(this,b)),"string"==typeof b&&a.isFunction(e=g[b])&&(c=e.apply(g,d))}),typeof c!==j?c:this},a.fn.cropper.Constructor=H,a.fn.cropper.setDefaults=H.setDefaults,a.fn.cropper.noConflict=function(){return a.fn.cropper=H.other,this}}); |