1 line
37 KiB
JavaScript
Executable File
1 line
37 KiB
JavaScript
Executable File
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t=n.get("context");t.clearRect(0,0,n.get("width"),n.get("height")),t.draw&&t.draw(),n._isEmpty=!0,W=null,n.historyList.length=0}},this.undo=function(){if(!n.get("options").disabled&&(0===n.get("options").maxHistoryLength&&n.clear(),n.get("createImage")&&n.historyList.length)){var t=n.historyList.pop();n.drawByImage(t),n.undoneList.push(W),W=t,n.historyList.length||n.undoneList.length||n.clear()}},this.redo=function(){if(n.undoneList.length&&!n.get("options").disabled){var t=n.undoneList.pop();n.historyList.push(W),n.drawByImage(t),W=t,n._isEmpty=!1}},this.canvas=e,this.canvas.set("pen",R),this.init()}return h(t,[{key:"getOption",value:function(){}},{key:"setOption",value:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},e=s({},t),n=e.maxLineWidth;if(n&&t.penSize&&n==R.maxLineWidth){var i=Math.max(n,t.penSize);e.maxLineWidth=i}this.canvas.set("pen",Object.assign({},R,e))}},{key:"get",value:function(t){return this.canvas.get("options"==t?"pen":t)}},{key:"init",value:function(){var t=this;this.get("context").lineCap="round",this.canvas.on("touchstart",(function(e){return t.onDrawStart(e)})),this.canvas.on("touchmove",(function(e){return t.onDrawMove(e)})),this.canvas.on("touchend",(function(e){return t.onDrawEnd(e)}))}},{key:"drawBackground",value:function(){var t=this.get("context"),e=this.get("width"),n=this.get("height"),i=this.get("options"),a=i.backgroundColor,r=i.backgroundImage;a&&(t.fillStyle=a,t.fillRect(0,0,e,n),t.draw&&t.draw(!0)),r&&this.drawByImage(r)}},{key:"getImageData",value:function(t){if(t){var e=this.get("width"),n=this.get("height"),i=this.get("el"),a="CANVAS"===i.nodeName,r=a?e:i.width,s=a?n:i.height;if(a){var o=document.createElement("canvas");o.width=e,o.height=n;var u=o.getContext("2d");u.drawImage(i,0,0,e,n);var c=u.getImageData(0,0,e,n).data;return t(c)}var h,f=this.get("context").getImageData(0,0,r,s);return y(h=f)&&S(h.then)&&S(h.catch)?(f.then((function(e){return t(e.data)})),null):t(f.data)}}},{key:"getMaskedImageData",value:function(t){if(t)return this.getImageData((function(e){for(var n=0;e.length>n;n+=4)0===e[n+3]?(e[n]=0,e[n+1]=0,e[n+2]=0):(e[n]=255,e[n+1]=255,e[n+2]=255);return t(e)}))}},{key:"getContentBoundingBox",value:function(t){var e=this.get("pixelRatio"),n=this.get("width"),i=this.get("height"),a=this.get("el"),r="CANVAS"===a.nodeName,s=r?n:a.width,o=r?i:a.height;return e=r?1:e,this.getImageData((function(n){for(var i=Math.floor(s),a=i,r=Math.floor(o),u=0,c=0,h=0;n.length>h;h+=4)if(n[h+3]>0){var f=h/4%i,l=Math.floor(h/4/i);a=Math.min(a,f),r=Math.min(r,l),u=Math.max(u,f),c=Math.max(c,l)}var d={width:(u-a+1)/e,height:(c-r+1)/e,startX:a/e,startY:r/e};return t&&t(d),d}))}},{key:"remove",value:function(){var t=this;this.canvas.off("touchstart",(function(e){return t.onDrawStart(e)})),this.canvas.off("touchmove",(function(e){return t.onDrawMove(e)})),this.canvas.off("touchend",(function(e){return t.onDrawEnd(e)}))}},{key:"disableScroll",value:function(t){t.preventDefault&&this.get("options").disableScroll&&t.preventDefault()}},{key:"onDrawStart",value:function(t){if(!this.get("options").disabled){this.disableScroll(t),this.undoneList.length=0;var e=t.points;if(this.active){this.canAddHistory=!0,this.get("context").strokeStyle=this.get("options").penColor;var n=e[0];this.initPoint(n.x,n.y)}}}},{key:"onDrawMove",value:function(t){if(!this.get("options").disabled&&(this.disableScroll(t),this.active)){var e=t.points[0];this.initPoint(e.x,e.y),this.onDraw()}}},{key:"onDrawEnd",value:function(t){this.active&&!this.get("options").disabled&&(this.addHistory(),this.canAddHistory=!0,this.points=[])}},{key:"onDraw",value:function(){var t=this,e=this.get("context");if(this.points.length>=2){e.lineWidth=this.get("options").penSize||2;var n=this.points.slice(-1)[0],i=this.points.slice(-2,-1)[0];(function(){t._isEmpty=!1,t.get("options").openSmooth?t.drawSmoothLine(i,n):t.drawNoSmoothLine(i,n)})()}}},{key:"getMaxLineWidth",value:function(){var t=this.get("options");return Math.min(t.penSize,t.maxLineWidth)}},{key:"initPoint",value:function(t,e){var n={x:t,y:e,t:Date.now()},i=this.points.slice(-1)[0];if(!i||i.t!==n.t&&(i.x!==t||i.y!==e)){if(this.get("options").openSmooth&&i){var a=this.points.slice(-2,-1)[0];if(n.distance=Math.sqrt(Math.pow(n.x-i.x,2)+Math.pow(n.y-i.y,2)),n.speed=n.distance/(n.t-i.t||.1),n.lineWidth=this.getLineWidth(n.speed),a&&a.lineWidth&&i.lineWidth){var r=(n.lineWidth-i.lineWidth)/i.lineWidth,s=this.get("options").maxWidthDiffRate/100;s=s>1?1:.01>s?.01:s,Math.abs(r)>s&&(n.lineWidth=i.lineWidth*(1+(r>0?s:-s)))}}this.points.push(n),this.points=this.points.slice(-3)}}}]),t}(),F=function(){function t(e){u(this,t),this.canvas=void 0,this._ee=void 0,this.pen=void 0;var n=new T(e);n.set("parent",this),this.canvas=n,this._ee=new k,this.pen=new O(n),this.init()}return h(t,[{key:"init",value:function(){this.pen.active=!0}},{key:"destroy",value:function(){this.canvas.destroy()}},{key:"clear",value:function(){this.pen.clear()}},{key:"undo",value:function(){this.pen.undo()}},{key:"redo",value:function(){this.pen.redo()}},{key:"save",value:function(){}},{key:"getContentBoundingBox",value:function(t){return this.pen.getContentBoundingBox(t)}},{key:"getMaskedImageData",value:function(t){return this.pen.getMaskedImageData(t)}},{key:"isEmpty",value:function(){return this.pen.isEmpty()}},{key:"on",value:function(t,e){this._ee.on(t,e)}},{key:"emit",value:function(t,e){this._ee.emit(t,e)}},{key:"off",value:function(t,e){this._ee.off(t,e)}}]),t}();e.Signature=F;var N=F;e.default=N},"44c9":function(t,e,n){"use strict";n.r(e);var i=n("52d9"),a=n.n(i);for(var r in i)["default"].indexOf(r)<0&&function(t){n.d(e,t,(function(){return i[t]}))}(r);e["default"]=a.a},"52d9":function(t,e,n){"use strict";n("6a54");var i=n("f5bd").default;Object.defineProperty(e,"__esModule",{value:!0}),e.default=void 0;var a=i(n("9b1b")),r=i(n("5de6")),s=i(n("2634")),o=i(n("2fdc"));n("d4b5"),n("5c47"),n("0506"),n("fd3c");var u=n("3c90"),c=n("3ff4"),h=n("e9a8"),f=i(n("98f8")),l=(n("9b8e"),{props:f.default,data:function(){return{canvasWidth:null,canvasHeight:null,offscreenWidth:null,offscreenHeight:null,useCanvas2d:!0,show:!0,offscreenStyles:"",showMask:!1,showOffscreen:!1,isPC:!1}},computed:{canvasId:function(){return"lime-signature".concat(this._uid)},offscreenId:function(){return this.canvasId+"offscreen"},offscreenSize:function(){var t=this.offscreenWidth,e=this.offscreenHeight;return this.landscape?[e,t]:[t,e]},canvasStyle:function(){var t=this.canvasWidth,e=this.canvasHeight,n=this.backgroundColor;return{width:t&&t+"px",height:e&&e+"px",background:n}},param:function(){var t=this.penColor,e=this.penSize,n=this.backgroundColor,i=this.backgroundImage,a=this.landscape,r=this.boundingBox,s=this.openSmooth,o=this.minLineWidth,u=this.maxLineWidth,c=this.minSpeed,h=this.maxWidthDiffRate,f=this.maxHistoryLength,l=this.disableScroll,d=this.disabled;return JSON.parse(JSON.stringify({penColor:t,penSize:e,backgroundColor:n,backgroundImage:i,landscape:a,boundingBox:r,openSmooth:s,minLineWidth:o,maxLineWidth:u,minSpeed:c,maxWidthDiffRate:h,maxHistoryLength:f,disableScroll:l,disabled:d}))}},created:function(){var t=uni.getSystemInfoSync(),e=t.platform;this.isPC=/windows|mac/.test(e),this.useCanvas2d="2d"==this.type&&(0,u.canIUseCanvas2d)()&&!this.isPC},mounted:function(){var t=this;return(0,o.default)((0,s.default)().mark((function e(){var n;return(0,s.default)().wrap((function(e){while(1)switch(e.prev=e.next){case 0:if(!t.beforeDelay){e.next=3;break}return e.next=3,(0,u.sleep)(t.beforeDelay);case 3:return e.next=5,t.getContext();case 5:n=e.sent,t.signature=new c.Signature(n),t.canvasEl=t.signature.canvas.get("el"),t.offscreenWidth=t.canvasWidth=t.signature.canvas.get("width"),t.offscreenHeight=t.canvasHeight=t.signature.canvas.get("height"),t.stopWatch=t.$watch("param",(function(e){t.signature.pen.setOption(e)}),{immediate:!0});case 11:case"end":return e.stop()}}),e)})))()},beforeDestroy:function(){this.stopWatch&&this.stopWatch(),this.signature.destroy(),this.show=!1,this.signature=null},methods:{redo:function(){this.signature&&this.signature.redo()},restore:function(){this.redo()},undo:function(){this.signature&&this.signature.undo()},clear:function(){this.signature&&this.signature.clear()},isEmpty:function(){return this.signature.isEmpty()},canvasToMaskPath:function(){var t=arguments,e=this;return(0,o.default)((0,s.default)().mark((function n(){var i,a,r,o,c,f,l,d,v,p;return(0,s.default)().wrap((function(n){while(1)switch(n.prev=n.next){case 0:return i=t.length>0&&void 0!==t[0]?t[0]:{},a=e.isEmpty(),e.showOffscreen=!0,r=e.signature.canvas.get("width"),o=e.signature.canvas.get("height"),c=uni.getSystemInfoSync(),f=c.pixelRatio,e.useCanvas2d?(e.offscreenWidth=r*f,e.offscreenHeight=o*f):(e.offscreenWidth=r,e.offscreenHeight=o),n.next=9,(0,u.sleep)(100);case 9:l=uni.createCanvasContext("offscreen",e),d=Math.max(e.offscreenWidth,e.offscreenHeight),v=function(t){return i.success&&i.success(t)},p=function(t){return i.fail&&i.fail(t)},e.signature.pen.getMaskedImageData((function(t){(function(t,e){uni.canvasPutImageData?uni.canvasPutImageData(t,e):l.putImageData&&l.putImageData(t)})({canvasId:"offscreen",x:0,y:0,width:r,height:o,data:t,fail:function(t){p(t)},success:function(t){(0,h.toDataURL)("offscreen",e,i).then((function(t){l.restore(),l.clearRect(0,0,d,d),e.offscreenWidth=r,e.offscreenHeight=o,e.showOffscreen=!1,v({tempFilePath:t,isEmpty:a})}))}},e)}));case 14:case"end":return n.stop()}}),n)})))()},canvasToTempFilePath:function(){var t=this,e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=this.isEmpty(),i=this.useCanvas2d,a=function(t){return e.success&&e.success(t)},c=function(t){return e.fail&&e.fail(t)},f=this.signature.canvas.get("el"),l=f.canvas,d=this.backgroundColor,v=this.landscape,p=this.boundingBox,g=this.signature.canvas.get("width"),y=this.signature.canvas.get("height"),m=0,w=0,x="devtools"==uni.getSystemInfoSync().platform,b=this.preferToDataURL,S=1,k=function(){var c=(0,o.default)((0,s.default)().mark((function o(c){var f,m,w,k,E,_;return(0,s.default)().wrap((function(s){while(1)switch(s.prev=s.next){case 0:if(f=function(){var e=i&&!!uni.createOffscreenCanvas&&b;if(e&&!x){var n=uni.createOffscreenCanvas({type:"2d"});n.width=t.offscreenSize[0]*S,n.height=t.offscreenSize[1]*S;var a=n.getContext("2d");return[a,n]}var r=uni.createCanvasContext("offscreen",t);return[r]},!(p&&!t.isPC||v||d&&!(0,u.isTransparent)(d))){s.next=13;break}return t.showOffscreen=!0,s.next=5,(0,u.sleep)(100);case 5:m=f(),w=(0,r.default)(m,2),k=w[0],E=w[1],k.save(),k.setTransform(1,0,0,1,0,0),v&&(k.translate(0,g*S),k.rotate(-Math.PI/2)),d&&!(0,u.isTransparent)(d)&&(k.fillStyle=d,k.fillRect(0,0,g,y)),E?(_=l.createImage(),_.src=c,_.onload=function(){k.drawImage(_,0,0,g*S,y*S);var e=E.toDataURL();t.showOffscreen=!1,a({tempFilePath:e,isEmpty:n})}):(k.drawImage(c,0,0,g*S,y*S),k.draw(!1,(function(){(0,h.toDataURL)("offscreen",t,e).then((function(e){var i=Math.max(g,y);k.restore(),k.clearRect(0,0,i,i),t.showOffscreen=!1,a({tempFilePath:e,isEmpty:n})}))}))),s.next=14;break;case 13:a({tempFilePath:c,isEmpty:n});case 14:case"end":return s.stop()}}),o)})));return function(t){return c.apply(this,arguments)}}(),E=function(){var e=(0,o.default)((0,s.default)().mark((function e(){var n;return(0,s.default)().wrap((function(e){while(1)switch(e.prev=e.next){case 0:if(t.offscreenWidth==g&&t.offscreenHeight==y){e.next=5;break}return t.offscreenWidth=g,t.offscreenHeight=y,e.next=5,(0,u.sleep)(100);case 5:n={x:m,y:w,width:g,height:y,canvas:l,preferToDataURL:b},(0,h.toDataURL)(t.canvasId,t,n).then(k).catch(c);case 7:case"end":return e.stop()}}),e)})));return function(){return e.apply(this,arguments)}}();p&&!this.isPC?this.signature.getContentBoundingBox(function(){var e=(0,o.default)((0,s.default)().mark((function e(n){return(0,s.default)().wrap((function(e){while(1)switch(e.prev=e.next){case 0:t.offscreenWidth=g=n.width,t.offscreenHeight=y=n.height,m=n.startX,w=n.startY,E();case 5:case"end":return e.stop()}}),e)})));return function(t){return e.apply(this,arguments)}}()):E()},getContext:function(){var t=this;return(0,u.getRect)("#".concat(this.canvasId),{context:this,type:this.useCanvas2d?"fields":"boundingClientRect"}).then((function(e){if(e){var n,i=e.width,a=e.height,r=e.node,s=e.left,o=e.top,c=e.right,f=uni.getSystemInfoSync(),l=f.pixelRatio;return r?(n=r.getContext("2d"),r.width=i*l,r.height=a*l):(l=1,n=(0,h.uniContext)(t.canvasId,t),r={getContext:function(t){return"2d"==t?n:null},createImage:h.createImage,toDataURL:function(){return(0,h.toDataURL)(t.canvasId,t)},requestAnimationFrame:u.requestAnimationFrame}),n.clearRect(0,0,i,a),{left:s,top:o,right:c,width:i,height:a,context:n,canvas:r,pixelRatio:l}}}))},getTouch:function(t){var e=this;return this.isPC&&this.canvasRect&&(t.touches=t.touches.map((function(t){return(0,a.default)((0,a.default)({},t),{},{x:t.clientX-e.canvasRect.left,y:t.clientY-e.canvasRect.top})}))),t},touchStart:function(t){var e=this;this.canvasEl&&(this.isStart=!0,this.isPC?(0,u.getRect)("#".concat(this.canvasId),{context:this}).then((function(n){e.canvasRect=n,e.canvasEl.dispatchEvent("touchstart",(0,u.wrapEvent)(e.getTouch(t)))})):this.canvasEl.dispatchEvent("touchstart",(0,u.wrapEvent)(t)))},touchMove:function(t){!this.canvasEl||!this.isStart&&this.canvasEl||this.canvasEl.dispatchEvent("touchmove",(0,u.wrapEvent)(this.getTouch(t)))},touchEnd:function(t){this.canvasEl&&(this.isStart=!1,this.canvasEl.dispatchEvent("touchend",(0,u.wrapEvent)(t)))}}});e.default=l},6758:function(t,e,n){"use strict";n("6a54");var i=n("f5bd").default;Object.defineProperty(e,"__esModule",{value:!0}),e.default=void 0;var a=i(n("25c7")),r=a.default;e.default=r},"7b96":function(t,e,n){"use strict";n.r(e);var i=n("cd33"),a=n("0687");for(var r in a)["default"].indexOf(r)<0&&function(t){n.d(e,t,(function(){return a[t]}))}(r);var s=n("44c9");for(var r in s)["default"].indexOf(r)<0&&function(t){n.d(e,t,(function(){return s[t]}))}(r);n("022d");var o=n("828b");a["default"].__module="sign";var u=Object(o["a"])(s["default"],i["b"],i["c"],!1,null,"3a035048",null,!1,i["a"],a["default"]);e["default"]=u.exports},"98f8":function(t,e,n){"use strict";n("6a54"),Object.defineProperty(e,"__esModule",{value:!0}),e.default=void 0,n("64aa");var i={styles:String,disableScroll:{type:Boolean,default:!0},type:{type:String,default:"2d"},penColor:{type:String,default:"black"},penSize:{type:Number,default:2},backgroundColor:String,backgroundImage:String,openSmooth:Boolean,minLineWidth:{type:Number,default:2},maxLineWidth:{type:Number,default:6},minSpeed:{type:Number,default:1.5},maxWidthDiffRate:{type:Number,default:20},maxHistoryLength:{type:Number,default:20},beforeDelay:{type:Number,default:0},landscape:{type:Boolean},boundingBox:{type:Boolean},disabled:{type:Boolean},preferToDataURL:Boolean};e.default=i},cb52:function(t,e,n){var i=n("c86c");e=i(!1),e.push([t.i,'@charset "UTF-8";\r\n/**\r\n * 这里是uni-app内置的常用样式变量\r\n *\r\n * uni-app 官方扩展插件及插件市场（https://ext.dcloud.net.cn）上很多三方插件均使用了这些样式变量\r\n * 如果你是插件开发者，建议你使用scss预处理，并在插件代码中直接使用这些变量（无需 import 这个文件），方便用户通过搭积木的方式开发整体风格一致的App\r\n *\r\n */\r\n/**\r\n * 如果你是App开发者（插件使用者），你可以通过修改这些变量来定制自己的插件主题，实现自定义主题功能\r\n *\r\n * 如果你的项目同样使用了scss预处理，你也可以直接在你的 scss 代码中使用如下变量，同时无需 import 这个文件\r\n */\r\n/* 颜色变量 */\r\n/* 行为相关颜色 */\r\n/* 文字基本颜色 */\r\n/* 背景颜色 */\r\n/* 边框颜色 */\r\n/* 尺寸变量 */\r\n/* 文字尺寸 */\r\n/* 图片尺寸 */\r\n/* Border Radius */\r\n/* 水平间距 */\r\n/* 垂直间距 */\r\n/* 透明度 */\r\n/* 文章场景相关 */.lime-signature[data-v-3a035048],\r\n.lime-signature__canvas[data-v-3a035048]{position:relative;width:100%;height:100%}.mask[data-v-3a035048]{position:absolute;left:0;right:0;bottom:0;top:0}.offscreen[data-v-3a035048]{position:fixed;top:0;pointer-events:none;left:9999px}',""]),t.exports=e},cd33:function(t,e,n){"use strict";n.d(e,"b",(function(){return i})),n.d(e,"c",(function(){return a})),n.d(e,"a",(function(){}));var i=function(){var t=this,e=t.$createElement,n=t._self._c||e;return t.show?n("v-uni-view",{ref:"limeSignature",staticClass:"lime-signature",style:[t.canvasStyle,t.styles]},[t.useCanvas2d?n("v-uni-canvas",{staticClass:"lime-signature__canvas",attrs:{id:t.canvasId,type:"2d",disableScroll:t.disableScroll},on:{touchstart:function(e){arguments[0]=e=t.$handleEvent(e),t.touchStart.apply(void 0,arguments)},touchmove:function(e){arguments[0]=e=t.$handleEvent(e),t.touchMove.apply(void 0,arguments)},touchend:function(e){arguments[0]=e=t.$handleEvent(e),t.touchEnd.apply(void 0,arguments)}}}):n("v-uni-canvas",{staticClass:"lime-signature__canvas",attrs:{disableScroll:t.disableScroll,"canvas-id":t.canvasId,id:t.canvasId,width:t.canvasWidth,height:t.canvasHeight},on:{touchstart:function(e){arguments[0]=e=t.$handleEvent(e),t.touchStart.apply(void 0,arguments)},touchmove:function(e){arguments[0]=e=t.$handleEvent(e),t.touchMove.apply(void 0,arguments)},touchend:function(e){arguments[0]=e=t.$handleEvent(e),t.touchEnd.apply(void 0,arguments)},mousedown:function(e){arguments[0]=e=t.$handleEvent(e),t.touchStart.apply(void 0,arguments)},mousemove:function(e){arguments[0]=e=t.$handleEvent(e),t.touchMove.apply(void 0,arguments)},mouseup:function(e){arguments[0]=e=t.$handleEvent(e),t.touchEnd.apply(void 0,arguments)}}}),t.showOffscreen?n("v-uni-canvas",{staticClass:"offscreen",style:"width:"+t.offscreenSize[0]+"px;height:"+t.offscreenSize[1]+"px",attrs:{"canvas-id":"offscreen",id:"offscreen",width:t.offscreenSize[0],height:t.offscreenSize[1]}}):t._e(),t.showMask?n("v-uni-view",{staticClass:"mask",on:{touchstart:function(e){arguments[0]=e=t.$handleEvent(e),t.touchStart.apply(void 0,arguments)},touchmove:function(e){e.stopPropagation(),e.preventDefault(),arguments[0]=e=t.$handleEvent(e),t.touchMove.apply(void 0,arguments)},touchend:function(e){arguments[0]=e=t.$handleEvent(e),t.touchEnd.apply(void 0,arguments)}}}):t._e()],1):t._e()},a=[]},e9a8:function(t,e,n){"use strict";n("6a54");var i=n("f5bd").default;Object.defineProperty(e,"__esModule",{value:!0}),e.uniContext=e.toDataURL=e.createImage=void 0,e.useCurrentPage=function(){var t=getCurrentPages();return t[t.length-1]};var a=i(n("9b1b")),r=i(n("80b1")),s=i(n("efe5"));n("c223"),n("bf0f"),n("e966");uni.getSystemInfoSync().uniPlatform;e.uniContext=function(t,e){var n=uni.createCanvasContext(t,e);return n.uniDrawImage||(n.uniDrawImage=n.drawImage,n.drawImage=function(t){for(var e=arguments.length,i=new Array(e>1?e-1:0),a=1;a<e;a++)i[a-1]=arguments[a];n.uniDrawImage.apply(n,[t.src].concat(i))}),n.getImageData?(n._getImageData=n.getImageData,n.getImageData=function(t,e,i,a){return new Promise((function(r,s){n._getImageData({x:t,y:e,width:parseInt(i),height:parseInt(a),success:function(t){r(t)},fail:function(t){s(t)}})}))}):n.getImageData=function(n,i,a,r){return new Promise((function(s,o){e.proxy&&(e=e.proxy),uni.canvasGetImageData({canvasId:t,x:n,y:i,width:parseInt(a),height:parseInt(r),success:function(t){s(t)},fail:function(t){o(t)}},e)}))},n};var o=function(){function t(){(0,r.default)(this,t),this.currentSrc=null,this.naturalHeight=0,this.naturalWidth=0,this.width=0,this.height=0,this.tagName="IMG"}return(0,s.default)(t,[{key:"onerror",value:function(){}},{key:"onload",value:function(){}},{key:"src",get:function(){return this.currentSrc},set:function(t){var e=this;this.currentSrc=t,uni.getImageInfo({src:t,success:function(t){e.naturalWidth=e.width=t.width,e.naturalHeight=e.height=t.height,e.onload()},fail:function(){e.onerror()}})}}]),t}();e.createImage=function(){return new o};e.toDataURL=function(t,e){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};return new Promise((function(i,r){var s=n.canvas,o=n.width,u=n.height,c=(n.destWidth,n.destHeight,n.x),h=void 0===c?0:c,f=n.y,l=void 0===f?0:f,d=n.preferToDataURL,v=uni.getSystemInfoSync(),p=v.pixelRatio,g=(0,a.default)((0,a.default)({},n),{},{canvasId:t,id:t,canvas:s,success:function(t){i(t.tempFilePath)},fail:function(t){r(t)}});if(s&&s.toDataURL&&d){uni.getSystemInfoSync().platform;if(h||l){var y=uni.createOffscreenCanvas({type:"2d"}),m=y.getContext("2d"),w=Math.floor(o*p),x=Math.floor(u*p);y.width=w,y.height=x;var b=s.createImage();b.onload=function(){m.drawImage(b,Math.floor(h*p),Math.floor(l*p),w,x,0,0,w,x);var t=y.toDataURL();i(t),g.success&&g.success({tempFilePath:t})},b.src=s.toDataURL()}else{var S=s.toDataURL();i(S),g.success&&g.success({tempFilePath:S})}}else s&&s.toTempFilePath?s.toTempFilePath(g):uni.canvasToTempFilePath(g,e)}))}}}]); |