module.exports = (function() { var __MODS__ = {}; var __DEFINE__ = function(modId, func, req) { var m = { exports: {}, _tempexports: {} }; __MODS__[modId] = { status: 0, func: func, req: req, m: m }; }; var __REQUIRE__ = function(modId, source) { if(!__MODS__[modId]) return require(source); if(!__MODS__[modId].status) { var m = __MODS__[modId].m; m._exports = m._tempexports; var desp = Object.getOwnPropertyDescriptor(m, "exports"); if (desp && desp.configurable) Object.defineProperty(m, "exports", { set: function (val) { if(typeof val === "object" && val !== m._exports) { m._exports.__proto__ = val.__proto__; Object.keys(val).forEach(function (k) { m._exports[k] = val[k]; }); } m._tempexports = val }, get: function () { return m._tempexports; } }); __MODS__[modId].status = 1; __MODS__[modId].func(__MODS__[modId].req, m, m.exports); } return __MODS__[modId].m.exports; }; var __REQUIRE_WILDCARD__ = function(obj) { if(obj && obj.__esModule) { return obj; } else { var newObj = {}; if(obj != null) { for(var k in obj) { if (Object.prototype.hasOwnProperty.call(obj, k)) newObj[k] = obj[k]; } } newObj.default = obj; return newObj; } }; var __REQUIRE_DEFAULT__ = function(obj) { return obj && obj.__esModule ? obj.default : obj; }; __DEFINE__(1687671528395, function(require, module, exports) { var __TEMP__ = require('./src/index');var Wxml2Canvas = __REQUIRE_DEFAULT__(__TEMP__); if (!exports.__esModule) Object.defineProperty(exports, "__esModule", { value: true });exports.default = Wxml2Canvas; }, function(modId) {var map = {"./src/index":1687671528396}; return __REQUIRE__(map[modId], modId); }) __DEFINE__(1687671528396, function(require, module, exports) { var __TEMP__ = require('./util');var Util = __REQUIRE_DEFAULT__(__TEMP__); const imageMode = ['scaleToFill', 'aspectFit', 'aspectFill', 'widthFix', 'top', 'bottom', 'center', 'left', 'right', 'top left', 'top right', 'bottom left', 'bottom right'] class Wxml2Canvas { constructor (options = {}) { this.device = wx.getSystemInfoSync && wx.getSystemInfoSync() || {}; if (!options.zoom) { this.zoom = this.device.windowWidth / 375; } else { this.zoom = options.zoom || 1; } this.element = options.element; this.object = options.obj; this.width = options.width * this.zoom || 0; this.height = options.height * this.zoom || 0; this.destZoom = options.destZoom || 3; this.destWidth = this.width * this.destZoom; this.destHeight = this.height * this.destZoom; this.translateX = options.translateX * this.zoom || 0; this.translateY = options.translateY * this.zoom || 0; this.gradientBackground = options.gradientBackground || null; this.background = options.background || '#ffffff'; this.finishDraw = options.finish || function finish(params) {} this.errorHandler = options.error || function error(params) {} this.progress = options.progress || function progress(params) {} this.textAlign = options.textAlign || 'left'; this.fullText = options.fullText || false; this.font = options.font || '14px PingFang SC'; this._init(); } draw (data = {}, that) { let self = this; this.data = data; this.fef = that; this.progress(10); this._preloadImage(data.list).then((result) => { this.progress(30); self._draw(); }).catch((res) => { self.errorHandler(res); }) } measureWidth (text, font) { if(font) { this.ctx.font = font; } let res = this.ctx.measureText(text) || {}; return res.width || 0; } _init () { this.progressPercent = 0; // 绘制进度百分比 this.data = null; this.ref = null; this.allPic = []; this.screenList = []; this.asyncList = []; this.imgUrl = ''; this.progressPercent = 0; this.distance = 0; this.progress(0); this.ctx = wx.createCanvasContext(this.element, this.obj); this.ctx.font = this.font; this.ctx.setTextBaseline('top'); this.ctx.setStrokeStyle('white'); this.debug = this.device.platform === 'devtools' ? true : false; this._drawBakcground(); } _drawBakcground () { if (this.gradientBackground) { let line = this.gradientBackground.line || [0, 0, 0, this.height]; let color = this.gradientBackground.color || ['#fff', '#fff']; let style = { fill: { line, color } } this._drawRectToCanvas(0, 0, this.width, this.height, style); } else { let style = { fill: this.background } this._drawRectToCanvas(0, 0, this.width, this.height, style); } } _draw () { let self = this; let list = this.data.list || []; let index = 0; let all = []; let count = 0; list.forEach(item => { if(item.type === 'wxml') { count += 3; } else { count += 1; } }) this.distance = 60 / (count || 1); // 进度条的间距 this.progressPercent = 30; this.asyncList = list.filter( item => item.delay == true ); list = list.filter( item => item.delay != true ); drawList(list); Promise.all(all).then(results => { index = 0; drawList(self.asyncList, true); Promise.all(all).then(results => { self.progress(90); self._saveCanvasToImage(); }); }).catch (e => { console.log(e) self.errorHandler(e); }); function drawList(list = [], noDelay) { list.forEach((item, i) => { all[index++] = new Promise((resolve, reject) => { let attr = item.style; item.progress = self.distance; if (noDelay) { item.delay = 0; } if (item.type === 'radius-image') { self._drawCircle(item, attr, resolve, reject, 'image'); } else if (item.type === 'text') { self._drawText(item, attr, resolve, reject); } else if (item.type === 'line') { self._drawLine(item, attr, resolve, reject); } else if (item.type === 'circle') { self._drawCircle(item, attr, resolve, reject); } else if (item.type === 'rect') { self._drawRect(item, attr, resolve, reject); } else if (item.type === 'image') { self._drawRect(item, attr, resolve, reject, 'image'); } else if (item.type === 'wxml') { self._drawWxml(item, attr, resolve, reject); }else { resolve(); } }); }); } } _saveCanvasToImage () { let self = this; // 延时保存有两个原因,一个是等待绘制delay的元素,另一个是安卓上样式会错乱 setTimeout(() => { self.progress(95); let obj = { x: 0, y: 0, width: self.width, height: self.height, canvasId: self.element, success: function (res) { self.progress(100); self.imgUrl = res.tempFilePath; self.finishDraw(self.imgUrl); }, fail: function (res) { self.errorHandler({errcode: 1000, errmsg: 'save canvas error', e: res}); } } if(self.destZoom !== 3) { obj.destWidth = self.destWidth; obj.destHeight = self.destHeight; } wx.canvasToTempFilePath(obj, self.object); }, self.device.system.indexOf('iOS') === -1 ? 300 : 100); } _preloadImage (list = []) { let self = this; let all = []; let count = 0; list.forEach((item, i) => { if (item.url && self._findPicIndex(item.url) === -1) { // 避免重复下载同一图片 self.allPic.push({ url: item.url, local: '' }); all[count++] = new Promise((resolve, reject) => { // 非http(s)域名的就不下载了 if (!/^http/.test(item.url) || /^http:\/\/(tmp)|(usr)\//.test(item.url) || /^http:\/\/127\.0\.0\.1/.test(item.url)) { if(item.isBase64) { let fileManager = wx.getFileSystemManager(); fileManager.writeFile({ filePath: item.url, data: item.isBase64.replace(/data:image\/(.*);base64,/, ''), encoding: 'base64', success (res) { imageInfo(item.url); }, fail (res) { reject(res); }, }) }else { imageInfo(item.url); } function imageInfo (url) { wx.getImageInfo({ src: url, success (res) { let index = self._findPicIndex(url); if(index > -1) { self.allPic[index].local = url; self.allPic[index].width = res.width; self.allPic[index].height = res.height; } resolve({ tempFilePath: url }); }, fail (res) { reject(res); } }) } } else { wx.downloadFile({ url: item.url.replace(/^https?/, 'https'), success: function (res) { wx.getImageInfo({ src: res.tempFilePath, success (img) { let index = self._findPicIndex(item.url); if (index > -1) { self.allPic[index].local = res.tempFilePath; self.allPic[index].width = img.width; self.allPic[index].height = img.height; } resolve(res); }, fail (res) { reject(res); } }) }, fail: (res) => { reject({errcode: 1001, errmsg: 'download pic error'}); } }) } }) } }); return Promise.all(all).then(results => { return new Promise(resolve => { resolve() }) }).catch((results) => { return new Promise((resolve, reject) => { reject(results) }) }) } _findPicIndex (url) { let index = this.allPic.findIndex(pic => pic.url === url); return index; } _drawRect (item, style, resolve, reject, isImage, isWxml) { let zoom = this.zoom; let leftOffset = 0; let topOffset = 0; let width = style.width; let height = style.height; let imgWidth = style.width; let imgHeight = style.height; let mode = null; try { item.x = this._resetPositionX(item, style); item.y = this._resetPositionY(item, style); let url; if(isImage) { let index = this._findPicIndex(item.url); if(index > -1) { url = this.allPic[index].local imgWidth = this.allPic[index].width imgHeight = this.allPic[index].height }else { url = item.url; } } style.padding = style.padding || []; if(isWxml === 'inline-wxml') { item.x = item.x + (style.padding[3] && style.padding[3] || 0) item.y = item.y + (style.padding[0] && style.padding[0] || 0) } leftOffset = item.x + style.width + (style.padding[1] && style.padding[1] || 0); if(!isWxml) { width = width * zoom; height = height * zoom; } if(style.dataset && style.dataset.mode && imageMode.indexOf(style.dataset.mode) > -1) { mode = { type: style.dataset.mode, width: imgWidth, height: imgHeight }; } this._drawRectToCanvas(item.x, item.y, width, height, style, url, mode); this._updateProgress(item.progress); if(resolve) { resolve(); }else { return { leftOffset, topOffset } } } catch (e) { reject && reject({ errcode: (isImage ? 1003 : 1002), errmsg: (isImage ? 'drawImage error' : 'drawRect error'), e }); } } _drawRectToCanvas (x, y, width, height, style, url, mode) { let { fill, border, boxShadow } = style; this.ctx.save(); this._drawBoxShadow(boxShadow, (res) => { // 真机上填充渐变色时,没有阴影,先画个相等大小的纯色矩形来实现阴影 if(fill && typeof fill !== 'string' && !this.debug) { this.ctx.setFillStyle(res.color || '#ffffff'); this.ctx.fillRect(x, y, width, height); } }); if(url) { // 开发者工具有bug,先不裁剪 if(mode) { this._resetImageByMode(url, x, y, width, height, mode); }else { this.ctx.drawImage(url, x, y, width, height) } }else { this._setFill(fill, () => { this.ctx.fillRect(x, y, width, height); }); } this._drawBorder(border, style, (border) => { let fixBorder = border.width; this.ctx.strokeRect(x - fixBorder / 2, y - fixBorder / 2, width + fixBorder, height + fixBorder); }); this.ctx.draw(true); this.ctx.restore(); } _resetImageByMode (url, x, y, width, height, mode) { let self = this; let offsetX = 0; let offsetY = 0; let imgWidth = mode.width; let imgHeight = mode.height; switch (mode.type) { case 'scaleToFill': imgWidth = width; imgHeight = height; self.ctx.drawImage(url, x, y, width, height) break; case 'widthFix': height = width / ((imgWidth || 1) / (imgHeight || 1)) self.ctx.drawImage(url, x, y, width, height) break; case 'aspectFit': if(imgWidth > imgHeight) { let realHeight = width / ((imgWidth || 1) / (imgHeight || 1)) offsetY = -(height - realHeight) / 2 imgWidth = width; imgHeight = realHeight; }else { let realWidth = height / ((imgHeight || 1) / (imgWidth || 1)) offsetX = -(width - realWidth) / 2 imgWidth = realWidth; imgHeight = height; } _clip(); break; case 'aspectFill': if(imgWidth > imgHeight) { let realWidth = imgWidth / ((imgHeight || 1) / (height || 1)) offsetX = (realWidth - width) / 2 imgWidth = realWidth; imgHeight = height; }else { let realHeight = imgHeight / ((imgWidth || 1) / (width || 1)) offsetY = (realHeight - height) / 2 imgWidth = width; imgHeight = realHeight; } _clip(); break; case 'top left': _clip(); break; case 'top': offsetX = (mode.width - width) / 2; _clip(); break; case 'top right': offsetX = (mode.width - width); _clip(); break; case 'left': offsetY = (mode.height - height) / 2; _clip(); break; case 'center': offsetX = (mode.width - width) / 2; offsetY = (mode.height - height) / 2; _clip(); break; case 'right': offsetX = (mode.width - width); offsetY = (mode.height - height) / 2; _clip(); break; case 'bottom left': offsetY = (mode.height - height) _clip(); break; case 'bottom': offsetX = (mode.width - width) / 2; offsetY = (mode.height - height) _clip(); break; case 'bottom right': offsetX = (mode.width - width); offsetY = (mode.height - height) _clip(); break; default: imgWidth = width; imgHeight = height; break; } function _clip () { self.ctx.save(); self.ctx.beginPath() self.ctx.rect(x, y, width, height) self.ctx.clip(); self.ctx.drawImage(url, x - offsetX, y - offsetY, imgWidth, imgHeight) self.ctx.closePath(); self.ctx.restore(); } } _drawText (item, style, resolve, reject, type, isWxml) { let zoom = this.zoom; let leftOffset = 0; let topOffset = 0; try { style.fontSize = this._parseNumber(style.fontSize); let fontSize = Math.ceil((style.fontSize || 14) * zoom) this.ctx.setTextBaseline('top'); this.ctx.font = (`${style.fontWeight ? (style.fontWeight) : 'normal'} ${ fontSize }px ${ style.fontFamily || 'PingFang SC' }`); this.ctx.setFillStyle(style.color || '#454545'); let text = item.text || ''; let textWidth = Math.floor(this.measureWidth(text, style.font || this.ctx.font)); let lineHeight = this._getLineHeight(style); let textHeight = Math.ceil(textWidth / (style.width || textWidth)) * lineHeight; let width = Math.ceil((style.width || textWidth) * (!isWxml ? zoom : 1)); let whiteSpace = style.whiteSpace || 'wrap'; let x = 0; let y = 0; if(typeof style.padding === 'string') { style.padding = Util.transferPadding(style.padding); } item.x = this._resetPositionX(item, style); item.y = this._resetPositionY(item, style, textHeight); this._drawBoxShadow(style.boxShadow); if(style.background || style.border) { this._drawTextBackgroud(item, style, textWidth, textHeight, isWxml); } // 行内文本 if(type === 'inline-text') { width = item.maxWidth; if(item.leftOffset + textWidth > width) { // 如果上一个行内元素换行了,这个元素要继续在后面补足一行 let lineNum = Math.max(Math.floor(textWidth / width), 1); let length = text.length; let singleLength = Math.floor(length / lineNum); let widthOffset = item.leftOffset ? item.leftOffset - item.originX : 0; let { endIndex: currentIndex, single, singleWidth } = this._getTextSingleLine(text, width, singleLength, 0, widthOffset) x = this._resetTextPositionX(item, style, singleWidth); y = this._resetTextPositionY(item, style); this.ctx.fillText(single, x, y); leftOffset = x + singleWidth; topOffset = y; // 去除第一行补的内容,然后重置 text = text.substring(currentIndex, text.length); currentIndex = 0; lineNum = Math.max(Math.floor(textWidth / width), 1); textWidth = Math.floor(this.measureWidth(text, style.font || this.ctx.font)); item.x = item.originX; // 还原换行后的x for (let i = 0; i < lineNum; i++) { let { endIndex, single, singleWidth } = this._getTextSingleLine(text, width, singleLength, currentIndex); currentIndex = endIndex; if(single) { x = this._resetTextPositionX(item, style, singleWidth, width); y = this._resetTextPositionY(item, style, i + 1); this.ctx.fillText(single, x, y); if(i === lineNum - 1) { leftOffset = x + singleWidth; topOffset = lineHeight * lineNum; } } } let last = text.substring(currentIndex, length); let lastWidth = this.measureWidth(last); if(last) { x = this._resetTextPositionX(item, style, lastWidth, width); y = this._resetTextPositionY(item, style, lineNum + 1); this.ctx.fillText(last, x, y); leftOffset = x + lastWidth; topOffset = lineHeight * (lineNum + 1); } }else { x = this._resetTextPositionX(item, style, textWidth, width); y = this._resetTextPositionY(item, style); this.ctx.fillText(item.text, x, y); leftOffset = x + textWidth; topOffset = lineHeight; } }else { // block文本,如果文本长度超过宽度换行 if (width && textWidth > width && whiteSpace !== 'nowrap') { let lineNum = Math.max(Math.floor(textWidth / width), 1); let length = text.length; let singleLength = Math.floor(length / lineNum); let currentIndex = 0; // lineClamp参数限制最多行数 if (style.lineClamp && lineNum + 1 > style.lineClamp) { lineNum = style.lineClamp - 1; } for (let i = 0; i < lineNum; i++) { let { endIndex, single, singleWidth } = this._getTextSingleLine(text, width, singleLength, currentIndex); currentIndex = endIndex; x = this._resetTextPositionX(item, style, singleWidth, width); y = this._resetTextPositionY(item, style, i); this.ctx.fillText(single, x, y); } // 换行后剩余的文字,超过一行则截断增加省略号 let last = text.substring(currentIndex, length); let lastWidth = this.measureWidth(last); if(lastWidth > width) { let { single, singleWidth } = this._getTextSingleLine(last, width, singleLength); lastWidth = singleWidth; last = single.substring(0, single.length - 1) + '...'; } x = this._resetTextPositionX(item, style, lastWidth, width); y = this._resetTextPositionY(item, style, lineNum); this.ctx.fillText(last, x, y); }else { x = this._resetTextPositionX(item, style, textWidth, width); y = this._resetTextPositionY(item, style); this.ctx.fillText(item.text, x, y); } } this.ctx.draw(true); this._updateProgress(item.progress); if(resolve) { resolve(); }else { return { leftOffset, topOffset } } } catch(e) { reject && reject({ errcode: 1004, errmsg: 'drawText error', e: e }); } } _drawTextBackgroud (item, style, textWidth, textHeight, isWxml) { if(!style.width) return; let zoom = isWxml ? 1 : this.zoom; let width = style.width || textWidth; let height = style.height || textHeight; let rectStyle = { fill: style.background, border: style.border } style.padding = style.padding || [0, 0, 0, 0]; width += (style.padding[1] || 0) + (style.padding[3] || 0); height += (style.padding[0] || 0) + (style.padding[2] || 0); width = width * zoom height = height * zoom this._drawRectToCanvas(item.x, item.y, width, height, rectStyle); } _drawCircle (item, style, resolve, reject, isImage, isWxml) { let zoom = this.zoom; let r = style.r; try { item.x = this._resetPositionX(item, style); item.y = this._resetPositionY(item, style); let url; if(isImage) { let index = this._findPicIndex(item.url); if (index > -1) { url = this.allPic[index].local; } else { url = item.url; } } if(!isWxml) { r = r * zoom; } this._drawCircleToCanvas(item.x, item.y, r, style, url); this._updateProgress(item.progress); resolve && resolve(); } catch (e) { reject && reject({ errcode: (isImage ? 1006 : 1005), errmsg: (isImage ? 'drawCircleImage error' : 'drawCircle error'), e }); } } _drawCircleToCanvas (x, y, r, style, url) { let { fill, border, boxShadow } = style; this.ctx.save(); this._drawBoxShadow(boxShadow, (res) => { // 真机上填充渐变色时,没有阴影,先画个相等大小的纯色矩形来实现阴影 if((fill && typeof fill !== 'string') || (url && res.color)) { this.ctx.setFillStyle(res.color || '#ffffff'); this.ctx.beginPath(); this.ctx.arc(x + r, y + r, r, 0, 2 * Math.PI); this.ctx.closePath(); this.ctx.fill(); } }); if(url) { this.ctx.save(); this.ctx.beginPath(); this.ctx.arc(x + r, y + r, r, 0, 2 * Math.PI); this.ctx.clip(); this.ctx.drawImage(url, x, y, r * 2, r * 2); this.ctx.closePath(); this.ctx.restore(); }else { this._setFill(fill, () => { this.ctx.beginPath(); this.ctx.arc(x + r, y + r, r, 0, 2 * Math.PI); this.ctx.closePath(); this.ctx.fill(); }); } this._drawBorder(border, style, (border) => { this.ctx.beginPath() this.ctx.arc(x + r, y + r, r + border.width / 2, 0, 2 * Math.PI) this.ctx.stroke() this.ctx.closePath(); }); this.ctx.draw(true); this.ctx.restore(); } _drawLine (item, style, resolve, reject, isWxml) { let zoom = this.zoom; try { let x1 = item.x * zoom + this.translateX; let y1 = item.y * zoom + this.translateY; let x2 = item.x2 * zoom + this.translateX; let y2 = item.y2 * zoom + this.translateY; this._drawLineToCanvas(x1, y1, x2, y2, style); this._updateProgress(item.progress); resolve && resolve(); } catch (e) { reject && reject({ errcode: 1007, errmsg: 'drawLine error', e }); } } _drawLineToCanvas (x1, y1, x2, y2, style) { let { stroke, dash, boxShadow } = style; this.ctx.save(); if(stroke) { this._setStroke(stroke); } this._drawBoxShadow(boxShadow); if(dash) { let dash = [style.dash[0] || 5, style.dash[1] || 5]; let offset = style.dash[2] || 0; this.ctx.setLineDash(dash, offset || 0); } this.ctx.moveTo(x1, y1); this.ctx.setLineWidth((style.width || 1) * this.zoom); this.ctx.lineTo(x2, y2); this.ctx.stroke(); this.ctx.draw(true); this.ctx.restore(); } // 废弃,合并到_drawRect _drawImage (item, style, resolve, reject, isWxml) { let zoom = this.zoom; try { item.x = this._resetPositionX(item, style); item.y = this._resetPositionY(item, style); item.x = item.x + (style.padding[3] || 0); item.y = item.y + (style.padding[0] || 0); let index = this._findPicIndex(item.url); let url = index > -1 ? this.allPic[index].local : item.url; this._drawImageToCanvas(url, item.x, item.y, style.width * zoom, style.height * zoom, style); this._updateProgress(item.progress); resolve && resolve(); } catch (e) { reject && reject({ errcode: 1012, errmsg: 'drawRect error', e }); } } // 废弃,合并到_drawRect _drawImageToCanvas (url, x, y, width, height, style) { let { fill, border, boxShadow } = style; this.ctx.save(); this._drawBoxShadow(boxShadow); this.ctx.drawImage(url, x, y, width, height); this._drawBorder(border, style, (border) => { let fixBorder = border.width; this.ctx.strokeRect(x - fixBorder / 2, y - fixBorder / 2, width + fixBorder, height + fixBorder); }); this.ctx.draw(true); this.ctx.restore(); } _drawWxml (item, style, resolve, reject) { let self = this; let all = []; try { this._getWxml(item, style).then((results) => { // 上 -> 下 let sorted = self._sortListByTop(results[0]); let count = 0; let progress = 0; Object.keys(sorted).forEach(item => { count += sorted[item].length; }) progress = this.distance * 3 / (count || 1); all = this._drawWxmlBlock(item, sorted, all, progress, results[1]); all = this._drawWxmlInline(item, sorted, all, progress, results[1]); Promise.all(all).then(results => { resolve && resolve(); }).catch (e => { reject && reject(e); }); }); } catch (e) { reject && reject({ errcode: 1008, errmsg: 'drawWxml error' }); } } _drawWxmlBlock (item, sorted, all, progress, results) { let self = this; // 用来限定位置范围,取相对位置 let limitLeft = (results ? results.left : 0); let limitTop = (results ? results.top : 0); Object.keys(sorted).forEach((top, topIndex) => { // 左 -> 右 let list = sorted[top].sort((a, b) => { return (a.left - b.left); }); list = list.filter(sub => sub.dataset.type && sub.dataset.type.indexOf('inline') === -1); list.forEach((sub, index) => { all[index] = new Promise((resolve2, reject2) => { sub = self._transferWxmlStyle(sub, item, limitLeft, limitTop); sub.progress = progress; let type = sub.dataset.type; if(sub.dataset.delay) { setTimeout(() => { drawWxmlItem(); }, sub.dataset.delay) } else { drawWxmlItem(); } function drawWxmlItem () { if (type === 'text') { self._drawWxmlText(sub, resolve2, reject2); } else if (type === 'image') { self._drawWxmlImage(sub, resolve2, reject2); } else if (type === 'radius-image') { self._drawWxmlCircleImage(sub, resolve2, reject2); } else if (type === 'background-image') { self._drawWxmlBackgroundImage(sub, resolve2, reject2); } } }); }); }); return all; } _drawWxmlInline (item, sorted, all, progress, results) { let self = this; let topOffset = 0; let leftOffset = 0; let lastTop = 0; let limitLeft = (results ? results.left : 0); let limitTop = (results ? results.top : 0); let p = new Promise((resolve2, reject2) => { let maxWidth = 0; let minLeft = Infinity; let maxRight = 0; // 找出同一top下的最小left和最大right,得到最大的宽度,用于换行 Object.keys(sorted).forEach(top => { let inlineList = sorted[top].filter(sub => sub.dataset.type && sub.dataset.type.indexOf('inline') > -1); inlineList.forEach(sub => { if(sub.left < minLeft) { minLeft = sub.left } if(sub.right > maxRight) { maxRight = sub.right; } }) }); maxWidth = Math.ceil((maxRight - minLeft) || self.width); Object.keys(sorted).forEach((top, topIndex) => { // 左 -> 右 let list = sorted[top].sort((a, b) => { return (a.left - b.left); }); // 换行的行内元素left放到后面,version2.0.6后无法获取高度,改用bottom值来判断是否换行了 let position = -1; for(let i = 0, len = list.length; i < len; i++) { if(list[i] && list[i + 1]) { if(list[i].bottom > list[i + 1].bottom) { position = i; break; } } } if(position > -1) { list.push(list.splice(position, 1)[0]); } let inlineList = list.filter(sub => sub.dataset.type && sub.dataset.type.indexOf('inline') > -1); let originLeft = (inlineList[0] ? inlineList[0].left : 0); // 换行后和top不相等时,认为是换行了,要清除左边距;当左偏移量大于最大宽度时,也要清除左边距; 当左偏移小于左边距时,也要清除 if (Math.abs(topOffset + lastTop - top) > 2 || leftOffset - originLeft - limitLeft >= maxWidth || leftOffset <= originLeft - limitLeft - 2) { leftOffset = 0; } lastTop = +top; topOffset = 0; inlineList.forEach((sub, index) => { sub = self._transferWxmlStyle(sub, item, limitLeft, limitTop); sub.progress = progress; let type = sub.dataset.type; if (type === 'inline-text') { let drawRes = self._drawWxmlInlineText(sub, leftOffset, maxWidth); leftOffset = drawRes.leftOffset; topOffset = drawRes.topOffset; } else if (type === 'inline-image') { let drawRes = self._drawWxmlImage(sub) || {}; leftOffset = drawRes.leftOffset || 0; topOffset = drawRes.topOffset || 0; } }); }); resolve2(); }) all.push(p); return all; } _drawWxmlInlineText (sub, leftOffset = 0, maxWidth) { let text = sub.dataset.text || ''; if(sub.dataset.maxlength && text.length > sub.dataset.maxlength) { text = text.substring(0, sub.dataset.maxlength) + '...'; } let textData = { text, originX: sub.left, x: leftOffset ? leftOffset : sub.left, y: sub.top, progress: sub.progress, leftOffset: leftOffset, maxWidth: maxWidth // 行内元素的最大宽度,取决于limit的宽度 } if (sub.backgroundColor !== 'rgba(0, 0, 0, 0)') { sub.background = sub.backgroundColor; }else { sub.background = 'rgba(0, 0, 0, 0)'; } if(sub.dataset.background) { sub.background = sub.dataset.background; } let res = this._drawText(textData, sub, null, null, 'inline-text', 'wxml'); return res } _drawWxmlText (sub, resolve, reject) { let text = sub.dataset.text || ''; if(sub.dataset.maxlength && text.length > sub.dataset.maxlength) { text = text.substring(0, sub.dataset.maxlength) + '...'; } let textData = { text, x: sub.left, y: sub.top, progress: sub.progress } if (sub.backgroundColor !== 'rgba(0, 0, 0, 0)') { sub.background = sub.backgroundColor; }else { sub.background = 'rgba(0, 0, 0, 0)'; } if(sub.dataset.background) { sub.background = sub.dataset.background; } this._drawText(textData, sub, resolve, reject, 'text', 'wxml'); } _drawWxmlImage (sub, resolve, reject) { let imageData = { url: sub.dataset.url, x: sub.left, y: sub.top, progress: sub.progress } let res = this._drawRect(imageData, sub, resolve, reject, 'image', 'inline-wxml'); return res } _drawWxmlCircleImage (sub, resolve, reject) { let imageData = { url: sub.dataset.url, x: sub.left, y: sub.top, progress: sub.progress } sub.r = sub.width / 2; this._drawCircle(imageData, sub, resolve, reject, true, 'wxml'); } _drawWxmlBackgroundImage (sub, resolve, reject) { let url = sub.dataset.url; let index = this._findPicIndex(url); url = index > -1 ? this.allPic[index].local : url; let size = sub.backgroundSize.replace(/px/g, '').split(' '); let imageData = { url: url, x: sub.left, y: sub.top, progress: sub.progress } this._drawRect(imageData, sub, resolve, reject, 'image', 'wxml'); } _getWxml (item, style) { let self = this; let query; if(this.obj) { query = wx.createSelectorQuery().in(this.obj); }else { query = wx.createSelectorQuery(); } let p1 = new Promise((resolve, reject) => { // 会触发两次,要限制 let count = 0; query.selectAll(`${item.class}`).fields({ dataset: true, size: true, rect: true, computedStyle: ['width', 'height', 'font', 'fontSize', 'fontFamily', 'fontWeight', 'fontStyle', 'textAlign', 'color', 'lineHeight', 'border', 'borderColor', 'borderStyle', 'borderWidth', 'verticalAlign', 'boxShadow', 'background', 'backgroundColor', 'backgroundImage', 'backgroundPosition', 'backgroundSize', 'paddingLeft', 'paddingTop', 'paddingRight', 'paddingBottom' ] }, (res) => { if(count++ === 0) { let formated = self._formatImage(res); let list = formated.list; res = formated.res; self._preloadImage(list).then(result => { resolve(res); }).catch((res) => { reject && reject({ errcode: 1009, errmsg: 'drawWxml preLoadImage error' }); }); } }).exec(); }); let p2 = new Promise((resolve, reject) => { if (!item.limit) { resolve({ top: 0, width: self.width / self.zoom }); } query.select(`${item.limit}`).fields({ dataset: true, size: true, rect: true, }, (res) => { resolve(res); }).exec(); }); return Promise.all([p1, p2]); } _getLineHeight (style) { let zoom = this.zoom; if(style.dataset && style.dataset.type) { zoom = 1; } let lineHeight; if(!isNaN(style.lineHeight) && style.lineHeight > style.fontSize) { lineHeight = style.lineHeight; }else { style.lineHeight = (style.lineHeight || '') + ''; lineHeight = +style.lineHeight.replace('px', ''); lineHeight = lineHeight ? lineHeight : (style.fontSize || 14) * 1.2; } return lineHeight * zoom; } _formatImage (res = []) { let list = []; res.forEach((item, index) => { let dataset = item.dataset; let uid = Util.getUid(); let filename = `${wx.env.USER_DATA_PATH}/${uid}.png`; if ((dataset.type === "image" || dataset.type === "radius-image") && dataset.url) { let sub = { url: dataset.base64 ? filename : dataset.url, isBase64: dataset.base64 ? dataset.url : false } res[index].dataset = Object.assign(res[index].dataset, sub); list.push(sub) } else if (dataset.type === 'background-image' && item.backgroundImage.indexOf('url') > -1) { let url = item.backgroundImage.replace(/url\((\"|\')?/, '').replace(/(\"|\')?\)$/, ''); let sub = { url: dataset.base64 ? filename : url, isBase64: dataset.base64 ? url : false } res[index].dataset = Object.assign(res[index].dataset, sub); list.push(sub) } }); return { list, res }; } _updateProgress (distance) { this.progressPercent += distance; this.progress(this.progressPercent); } _sortListByTop (list = []) { let sorted = {}; // 粗略地认为2px相差的元素在同一行 list.forEach((item, index) => { let top = item.top; if (!sorted[top]) { if (sorted[top - 2]) { top = top - 2; }else if (sorted[top - 1]) { top = top - 1; } else if (sorted[top + 1]) { top = top + 1; } else if (sorted[top + 2]) { top = top + 2; } else { sorted[top] = []; } } sorted[top].push(item); }); return sorted; } _parseNumber (number) { return isNaN(number) ? +(number || '').replace('px', '') : number; } _transferWxmlStyle (sub, item, limitLeft, limitTop) { let leftFix = (+sub.dataset.left || 0); let topFix = (+sub.dataset.top || 0); sub.width = this._parseNumber(sub.width); sub.height = this._parseNumber(sub.height); sub.left = this._parseNumber(sub.left) - limitLeft + (leftFix + (item.x || 0)) * this.zoom; sub.top = this._parseNumber(sub.top) - limitTop + (topFix + (item.y || 0)) * this.zoom; let padding = sub.dataset.padding || '0 0 0 0'; if (typeof padding === 'string') { padding = Util.transferPadding(padding); } let paddingTop = Number(sub.paddingTop.replace('px', '')) + Number(padding[0]); let paddingRight = Number(sub.paddingRight.replace('px', '')) + Number(padding[1]); let paddingBottom = Number(sub.paddingBottom.replace('px', '')) + Number(padding[2]); let paddingLeft = Number(sub.paddingLeft.replace('px', '')) + Number(padding[3]); sub.padding = [paddingTop, paddingRight, paddingBottom, paddingLeft]; return sub; } /** * 支持负值绘制,从右边计算 * @param {*} item * @param {*} style */ _resetPositionX (item, style) { let zoom = this.zoom; let x = 0; if(style.dataset && style.dataset.type) { zoom = 1; } // 通过wxml获取的不需要重置坐标 if (item.x < 0 && item.type) { x = this.width + item.x * zoom - style.width * zoom; } else { x = item.x * zoom; } if (parseInt(style.borderWidth)) { x += parseInt(style.borderWidth) } return x + this.translateX; } /** * 支持负值绘制,从底部计算 * @param {*} item * @param {*} style */ _resetPositionY (item, style, textHeight) { let zoom = this.zoom; let y = 0; if(style.dataset && style.dataset.type) { zoom = 1; } if (item.y < 0) { y = this.height + item.y * zoom - (textHeight ? textHeight : style.height * zoom) } else { y = item.y * zoom; } if (parseInt(style.borderWidth)) { y += parseInt(style.borderWidth) } return y + this.translateY; } /** * 文字的padding、text-align * @param {*} item * @param {*} style * @param {*} textWidth */ _resetTextPositionX (item, style, textWidth, width) { let textAlign = style.textAlign || 'left'; let x = item.x; if (textAlign === 'center') { x = (width - textWidth) / 2 + item.x; } else if (textAlign === 'right') { x = width - textWidth + item.x; } let left = style.padding ? (style.padding[3] || 0) : 0; return x + left + this.translateX; } /** * 文字的padding、text-align * @param {*} item * @param {*} style * @param {*} textWidth */ _resetTextPositionY (item, style, lineNum = 0) { let zoom = this.zoom; if(style.dataset && style.dataset.type) { zoom = 1; } let lineHeight = this._getLineHeight(style); let fontSize = Math.ceil((style.fontSize || 14) * zoom) let blockLineHeightFix = (style.dataset && style.dataset.type || '').indexOf('inline') > -1 ? 0 : (lineHeight - fontSize) / 2 let top = style.padding ? (style.padding[0] || 0) : 0; // y + lineheight偏移 + 行数 + paddingTop + 整体画布位移 return item.y + blockLineHeightFix + lineNum * lineHeight + top + this.translateY; } /** * 当文本超过宽度时,计算每一行应该绘制的文本 * @param {*} text * @param {*} width * @param {*} singleLength * @param {*} currentIndex * @param {*} widthOffset */ _getTextSingleLine(text, width, singleLength, currentIndex = 0, widthOffset = 0) { let offset = 0; let endIndex = currentIndex + singleLength + offset; let single = text.substring(currentIndex, endIndex); let singleWidth = this.measureWidth(single); while (Math.round(widthOffset + singleWidth) > width) { offset--; endIndex = currentIndex + singleLength + offset; single = text.substring(currentIndex, endIndex); singleWidth = this.measureWidth(single); } return { endIndex, single, singleWidth } } _drawBorder (border, style, callback) { let zoom = this.zoom; if(style.dataset && style.dataset.type) { zoom = 1; } border = Util.transferBorder(border); if (border && border.width) { // 空白阴影,清空掉边框的阴影 this._drawBoxShadow(); if (border) { this.ctx.setLineWidth(border.width * zoom); if (border.style === 'dashed') { let dash = style.dash || [5, 5, 0]; let offset = dash[2] || 0; let array = [dash[0] || 5, dash[1] || 5]; this.ctx.setLineDash(array, offset); } this.ctx.setStrokeStyle(border.color); } callback && callback(border); } } _drawBoxShadow (boxShadow, callback) { boxShadow = Util.transferBoxShadow(boxShadow); if (boxShadow) { this.ctx.setShadow(boxShadow.offsetX, boxShadow.offsetY, boxShadow.blur, boxShadow.color); }else { this.ctx.setShadow(0, 0, 0, '#ffffff'); } callback && callback(boxShadow || {}); } _setFill (fill, callback) { if(fill) { if (typeof fill === 'string') { this.ctx.setFillStyle(fill); } else { let line = fill.line; let color = fill.color; let grd = this.ctx.createLinearGradient(line[0], line[1], line[2], line[3]); grd.addColorStop(0, color[0]); grd.addColorStop(1, color[1]); this.ctx.setFillStyle(grd); } callback && callback(); } } _setStroke (stroke, callback) { if(stroke) { if (typeof stroke === 'string') { this.ctx.setStrokeStyle(stroke); } else { let line = stroke.line; let color = stroke.color; let grd = this.ctx.createLinearGradient(line[0], line[1], line[2], line[3]); grd.addColorStop(0, color[0]); grd.addColorStop(1, color[1]); this.ctx.setStrokeStyle(grd); } callback && callback(); } } } if (!exports.__esModule) Object.defineProperty(exports, "__esModule", { value: true });exports.default = Wxml2Canvas; }, function(modId) { var map = {"./util":1687671528397}; return __REQUIRE__(map[modId], modId); }) __DEFINE__(1687671528397, function(require, module, exports) { /** * 获取字符的长度,full为true时,一个汉字算两个长度 * @param {String} str * @param {Boolean} full */ function getTextLength (str, full) { let len = 0; for (let i = 0; i < str.length; i++) { let c = str.charCodeAt(i); //单字节加1 if ((c >= 0x0001 && c <= 0x007e) || (0xff60 <= c && c <= 0xff9f)) { len++; } else { len += (full ? 2 : 1); } } return len; } /** * rgba(255, 255, 255, 1) => #ffffff * @param {String} color */ function transferColor (color = '') { let res = '#'; color = color.replace(/^rgba?\(/, '').replace(/\)$/, ''); color = color.split(', '); color.length > 3 ? color.length = 3 : ''; for(let item of color) { item = parseInt(item || 0); if(item < 10) { res += ('0' + item) }else { res += (item.toString(16)) } } return res; } function transferBorder (border = '') { let res = border.match(/(\w+)px\s(\w+)\s(.*)/); let obj = {}; if(res) { obj = { width: +res[1], style: res[2], color: res[3] } } return res ? obj : null; } /** * 内边距,依次为上右下左 * @param {*} padding */ function transferPadding (padding = '0 0 0 0') { padding = padding.split(' '); for(let i = 0, len = padding.length; i < len; i++) { padding[i] = +padding[i].replace('px', ''); } return padding; } /** * type1: 0, 25, 17, rgba(0, 0, 0, 0.3) * type2: rgba(0, 0, 0, 0.3) 0px 25px 17px 0px => (0, 25, 17, rgba(0, 0, 0, 0.3)) * @param {*} shadow */ function transferBoxShadow(shadow = '', type) { if(!shadow || shadow === 'none') return; let color; let split; split = shadow.match(/(\w+)\s(\w+)\s(\w+)\s(rgb.*)/); if (split) { split.shift(); shadow = split; color = split[3] || '#ffffff'; } else { split = shadow.split(') '); color = split[0] + ')' shadow = split[1].split('px '); } return { offsetX: +shadow[0] || 0, offsetY: +shadow[1] || 0, blur: +shadow[2] || 0, color } } function getUid(prefix) { prefix = prefix || ''; return ( prefix + 'xxyxxyxx'.replace(/[xy]/g, c => { let r = (Math.random() * 16) | 0; let v = c === 'x' ? r : (r & 0x3) | 0x8; return v.toString(16); }) ); } if (!exports.__esModule) Object.defineProperty(exports, "__esModule", { value: true });exports.default = { getTextLength, transferBorder, transferColor, transferPadding, transferBoxShadow, getUid }; }, function(modId) { var map = {}; return __REQUIRE__(map[modId], modId); }) return __REQUIRE__(1687671528395); })() //miniprogram-npm-outsideDeps=[] //# sourceMappingURL=index.js.map