vue-barrage
Version:
一个基于Canvas+Vue的弹幕组件
1,096 lines (1,011 loc) • 45.8 kB
JavaScript
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/* 0 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
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// import faceMap from '../../assets/emoji'
/* harmony default export */ __webpack_exports__["a"] = ({
name: 'Barrage',
props: {
barrageList: {
type: Array,
default: () => []
},
speed: {
type: Number,
default: 4
},
loop: {
type: Boolean,
default: true
},
channels: {
type: Number,
default: 2
},
barrageHeight: {
type: Number,
default: 60
},
screenPercent: {
type: Number,
default: 0.3
},
borderColor: {
type: String,
default: ''
},
background: {
type: String,
default: ''
},
linearGradient: {
type: Object,
default: () => {
return {
startColor: '',
endColor: ''
};
}
}
},
data() {
return {
newBarrageArray: [], // 新增弹幕之后的总弹幕
barrageArray: [],
barrageQueue: [],
containerWidth: 0,
containerHeight: 0,
channelsArray: [],
barrageChannels: 1
};
},
watch: {
barrageList(val) {
if (val.length !== 0) {
this.barrageQueue = JSON.parse(JSON.stringify(val));
this.newBarrageArray = JSON.parse(JSON.stringify(val));
this.initData();
window.requestAnimationFrame(this.render);
}
}
},
mounted() {
this.containerWidth = document.body.clientWidth * 2;
this.containerHeight = window.screen.height * this.screenPercent > 2 * this.barrageHeight ? window.screen.height * this.screenPercent : this.barrageHeight + 30; // 设定总高度
this.barrageChannels = Math.floor(this.containerHeight / (this.barrageHeight + 30)) || this.channels; // 总高度对应的轨道数
this.ctx = this.$refs.canvas.getContext('2d');
this.ctx1 = this.$refs.canvasContainer.getContext('2d');
this.barrageClickEvent();
},
methods: {
/**
* 数据初始化
*/
initData() {
for (let i = 0; i < this.barrageQueue.length; i++) {
// 此处处理只显示50个字符
let tagImg = null;
let img = null;
if (this.barrageQueue[i].icon) {
img = new Image();
img.src = this.barrageQueue[i].icon;
}
if (this.barrageQueue[i].tagImage) {
tagImg = new Image();
tagImg.src = this.barrageQueue[i].tagImage;
}
let content = this.dealStr(this.barrageQueue[i].content);
this.barrageArray.push({
id: this.barrageQueue[i].id,
content: content,
x: this.containerWidth + this.barrageHeight,
icon: img,
tagImage: tagImg,
width: this.ctx1.measureText(content).width * 3 + (this.barrageQueue[i].icon ? 60 : 0),
color: this.barrageQueue[i].color || '#FFFFFF',
bgColor: this.barrageQueue[i].bgColor || 'rgba(0,0,0,0.4)'
});
}
this.initChannel();
},
/**
* 初始化轨道数据
*/
initChannel() {
for (let i = 0; i < this.barrageChannels; i++) {
let item = this.barrageArray.shift();
if (item) {
this.channelsArray[i] = [item];
} else {
this.channelsArray[i] = [];
}
}
},
/**
* 渲染
*/
render() {
this.ctx.clearRect(0, 0, this.containerWidth, this.containerHeight);
this.ctx.font = '30px Microsoft YaHei';
this.draw();
window.requestAnimationFrame(this.render);
},
draw() {
for (let i = 0; i < this.channelsArray.length; i++) {
for (let j = 0; j < this.channelsArray[i].length; j++) {
try {
let barrage = this.channelsArray[i][j];
barrage.x -= this.speed;
if (barrage.x <= this.containerWidth) {
// 弹幕显示
this.borderColor && this.drawRoundRectBorder(this.ctx, barrage.x - this.barrageHeight / 2, i * (this.barrageHeight + 20) + 20, barrage.width + this.barrageHeight, this.barrageHeight, this.barrageHeight / 2);
this.drawRoundRect(this.ctx, barrage.bgColor, barrage.x - this.barrageHeight / 2, i * (this.barrageHeight + 20) + 21, barrage.width + this.barrageHeight, this.barrageHeight - 2, this.barrageHeight / 2);
this.ctx.fillStyle = `${barrage.color}`;
this.ctx.fillText(barrage.content, barrage.x + (barrage.icon ? this.barrageHeight / 2 + 20 : -5), i * (this.barrageHeight + 20) + this.barrageHeight);
if (barrage.icon) {
this.circleImg(this.ctx, barrage.icon, barrage.x - 10, i * (this.barrageHeight + 20) + 26, 24);
}
if (barrage.tagImage) {
this.originImg(this.ctx, barrage.tagImage, barrage.x - this.barrageHeight - 10, i * (this.barrageHeight + 20) + 20, this.barrageHeight, this.barrageHeight);
}
}
if (barrage.x < -(barrage.width + this.barrageHeight)) {
// 弹幕删除
let arr = this.channelsArray.reduce((a, b) => a.concat(b));
if (this.loop) {
if (this.checkBarrageStatus(arr)) {
this.barrageQueue = [];
this.barrageQueue = JSON.parse(JSON.stringify(this.newBarrageArray));
this.initData();
}
}
}
// 弹幕插入时机判断
if (barrage.x <= Math.floor(this.containerWidth - barrage.width - 40) && barrage.x >= Math.floor(this.containerWidth - barrage.width - 40 - this.speed) && j === this.channelsArray[i].length - 1 && this.barrageArray.length !== 0) {
let item = this.barrageArray.shift();
this.channelsArray[i].push(item);
}
} catch (e) {
console.log(e);
}
}
}
},
/**
* 重置数据
*/
add(obj) {
let content = this.dealStr(obj.content);
let img = null;
let tagImg = null;
if (obj.icon) {
img = new Image();
img.src = obj.icon;
}
if (obj.tagImage) {
tagImg = new Image();
tagImg.src = obj.tagImage;
}
let item = {
id: obj.id,
content: content,
x: this.containerWidth + this.barrageHeight,
icon: obj.icon ? img : '',
tagImage: obj.tagImage ? tagImg : '',
width: this.ctx1.measureText(content).width * 3 + (obj.icon ? this.barrageHeight : 0),
color: obj.color || '#FFFFFF',
bgColor: obj.bgColor || 'rgba(0,0,0,0.4)'
};
let originItem = {
id: obj.id,
content: obj.content,
icon: obj.icon,
tagImage: obj.tagImage,
color: obj.color || '#FFFFFF',
bgColor: obj.bgColor || 'rgba(0,0,0,0.4)'
};
if (this.barrageArray.length === 0) {
// 剩余弹幕数为0
this.newBarrageArray.unshift(originItem);
} else {
this.barrageArray.unshift(item);
let insertIndex = this.barrageList.length - this.barrageArray.length;
this.newBarrageArray.splice(insertIndex, 0, originItem);
}
},
/**
* 弹幕点击事件
*/
barrageClickEvent() {
document.getElementById('canvas').addEventListener('click', e => {
const p = this.getEventPosition(e);
let channelIndex = Math.floor(p.y / (this.barrageHeight + 30));
const tempArray = JSON.parse(JSON.stringify(this.channelsArray[channelIndex]));
for (let i = 0; i < tempArray.length; i++) {
let channelItemArray = tempArray[i];
if (p.x > channelItemArray.x && p.x < channelItemArray.x + channelItemArray.width) {
if (channelItemArray.id) {
this.$emit('doLike', channelItemArray.id);
}
}
}
}, false);
},
/**
* 获取点击位置
*/
getEventPosition(ev) {
let x, y;
if (ev.layerX || ev.layerX === 0) {
x = ev.layerX;
y = ev.layerY;
} else if (ev.offsetX || ev.offsetX === 0) {
x = ev.offsetX;
y = ev.offsetY;
}
return { x: 2 * x, y: 2 * y };
},
/**
* 判断所有的弹幕是否滚动完成
* @params arr
*/
checkBarrageStatus(arr) {
for (let i = 0; i < arr.length; i++) {
if (arr[i].x > -arr[i].width) return false;
}
return true;
},
/**
* 处理字符
*/
dealStr(str) {
return str.length > 50 ? `${str.substring(0, 50)}...` : str;
},
/**
* 获取随机颜色
*/
getColor() {
return `#${Math.floor(Math.random() * 16777215).toString(16)}`;
},
/**
* 裁剪图片
* @param ctx
* @param img
* @param x
* @param y
* @param r
*/
circleImg(ctx, img, x, y, r) {
ctx.save();
let d = 2 * r;
let cx = x + r;
let cy = y + r;
ctx.beginPath();
ctx.arc(cx, cy, r, 0, 2 * Math.PI);
ctx.clip();
ctx.drawImage(img, x, y, d, d);
ctx.restore();
ctx.closePath();
},
/**
* 绘制原始图片
* @param ctx
* @param img
* @param x
* @param y
* @param width
* @param height
*/
originImg(ctx, img, x, y, width, height) {
try {
ctx.beginPath();
ctx.drawImage(img, x, y, width, height);
ctx.closePath();
} catch (e) {
console.log(e);
}
},
/**
* 绘画圆角矩形
* @param context
* @param bgColor
* @param x
* @param y
* @param width
* @param height
* @param radius
*/
drawRoundRect(context, bgColor, x, y, width, height, radius) {
if (this.linearGradient.startColor && this.linearGradient.endColor) {
let linearGrad = context.createLinearGradient(x, y, x, y + height);
linearGrad.addColorStop(0, this.linearGradient.startColor);
linearGrad.addColorStop(1, this.linearGradient.endColor);
context.fillStyle = linearGrad || bgColor;
} else {
context.fillStyle = this.background || bgColor;
}
context.beginPath();
context.arc(x + radius, y + radius, radius, Math.PI, Math.PI * 3 / 2);
context.lineTo(width - radius + x, y);
context.arc(width - radius + x, radius + y, radius, Math.PI * 3 / 2, Math.PI * 2);
context.lineTo(width + x, height + y - radius);
context.arc(width - radius + x, height - radius + y, radius, 0, Math.PI / 2);
context.lineTo(radius + x, height + y);
context.arc(radius + x, height - radius + y, radius, Math.PI / 2, Math.PI);
context.fill();
context.closePath();
},
/**
* 绘画圆角矩形
* @param context
* @param x
* @param y
* @param width
* @param height
* @param radius 半径
*/
drawRoundRectBorder(context, x, y, width, height, radius) {
context.beginPath();
context.lineWidth = 2;
context.strokeStyle = this.borderColor;
context.arc(x + radius, y + radius, radius, Math.PI, Math.PI * 3 / 2);
context.lineTo(width - radius + x, y);
context.arc(width - radius + x, radius + y, radius, Math.PI * 3 / 2, Math.PI * 2);
context.lineTo(width + x, height + y - radius);
context.arc(width - radius + x, height - radius + y, radius, 0, Math.PI / 2);
context.lineTo(radius + x, height + y);
context.arc(radius + x, height - radius + y, radius, Math.PI / 2, Math.PI);
context.stroke();
context.closePath();
}
}
});
/***/ }),
/* 1 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__barrage_vue__ = __webpack_require__(2);
/**
* @author Nickyzhang
* @date 2019/7/13
* @description file templates
*/
__WEBPACK_IMPORTED_MODULE_0__barrage_vue__["a" /* default */].install = function (Vue) {
Vue.component('Barrage', __WEBPACK_IMPORTED_MODULE_0__barrage_vue__["a" /* default */]);
};
/* harmony default export */ __webpack_exports__["default"] = (__WEBPACK_IMPORTED_MODULE_0__barrage_vue__["a" /* default */]);
/***/ }),
/* 2 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_barrage_vue__ = __webpack_require__(0);
/* unused harmony namespace reexport */
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__node_modules_vue_loader_lib_template_compiler_index_id_data_v_2ac013d2_hasScoped_true_buble_transforms_node_modules_vue_loader_lib_selector_type_template_index_0_barrage_vue__ = __webpack_require__(9);
var disposed = false
function injectStyle (ssrContext) {
if (disposed) return
__webpack_require__(3)
}
var normalizeComponent = __webpack_require__(8)
/* script */
/* template */
/* template functional */
var __vue_template_functional__ = false
/* styles */
var __vue_styles__ = injectStyle
/* scopeId */
var __vue_scopeId__ = "data-v-2ac013d2"
/* moduleIdentifier (server only) */
var __vue_module_identifier__ = null
var Component = normalizeComponent(
__WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_barrage_vue__["a" /* default */],
__WEBPACK_IMPORTED_MODULE_1__node_modules_vue_loader_lib_template_compiler_index_id_data_v_2ac013d2_hasScoped_true_buble_transforms_node_modules_vue_loader_lib_selector_type_template_index_0_barrage_vue__["a" /* default */],
__vue_template_functional__,
__vue_styles__,
__vue_scopeId__,
__vue_module_identifier__
)
Component.options.__file = "src/barrage.vue"
/* hot reload */
if (false) {(function () {
var hotAPI = require("vue-hot-reload-api")
hotAPI.install(require("vue"), false)
if (!hotAPI.compatible) return
module.hot.accept()
if (!module.hot.data) {
hotAPI.createRecord("data-v-2ac013d2", Component.options)
} else {
hotAPI.reload("data-v-2ac013d2", Component.options)
}
module.hot.dispose(function (data) {
disposed = true
})
})()}
/* harmony default export */ __webpack_exports__["a"] = (Component.exports);
/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {
// style-loader: Adds some css to the DOM by adding a <style> tag
// load the styles
var content = __webpack_require__(4);
if(typeof content === 'string') content = [[module.i, content, '']];
if(content.locals) module.exports = content.locals;
// add the styles to the DOM
var update = __webpack_require__(6)("d2fdf31c", content, false, {});
// Hot Module Replacement
if(false) {
// When the styles change, update the <style> tags
if(!content.locals) {
module.hot.accept("!!../node_modules/css-loader/index.js?sourceMap!../node_modules/vue-loader/lib/style-compiler/index.js?{\"vue\":true,\"id\":\"data-v-2ac013d2\",\"scoped\":true,\"hasInlineConfig\":false}!../node_modules/vue-loader/lib/selector.js?type=styles&index=0!./barrage.vue", function() {
var newContent = require("!!../node_modules/css-loader/index.js?sourceMap!../node_modules/vue-loader/lib/style-compiler/index.js?{\"vue\":true,\"id\":\"data-v-2ac013d2\",\"scoped\":true,\"hasInlineConfig\":false}!../node_modules/vue-loader/lib/selector.js?type=styles&index=0!./barrage.vue");
if(typeof newContent === 'string') newContent = [[module.id, newContent, '']];
update(newContent);
});
}
// When the module is disposed, remove the <style> tags
module.hot.dispose(function() { update(); });
}
/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {
exports = module.exports = __webpack_require__(5)(true);
// imports
// module
exports.push([module.i, "\n.z_barrage-container[data-v-2ac013d2] {\n pointer-events: none;\n}\n.z_container[data-v-2ac013d2] {\n width: 100%;\n overflow: hidden;\n}\n.z_barrage[data-v-2ac013d2] {\n position: absolute;\n top: 0;\n left: 0;\n}\n", "", {"version":3,"sources":["/Users/Cral-Gates/Project/vue-plugin/src/src/barrage.vue"],"names":[],"mappings":";AAuYA;EACA,qBAAA;CACA;AACA;EACA,YAAA;EACA,iBAAA;CACA;AACA;EACA,mBAAA;EACA,OAAA;EACA,QAAA;CACA","file":"barrage.vue","sourcesContent":["<!--\n * @Author: your name\n * @Date: 2020-03-18 13:26:53\n * @LastEditTime: 2020-09-02 22:05:29\n * @LastEditors: Please set LastEditors\n * @Description: In User Settings Edit\n * @FilePath: /vue-barrage/src/views/src/barrage_new.vue\n-->\n<template>\n <div class=\"z_barrage-container\">\n <canvas\n ref=\"canvasContainer\"\n :width=\"containerWidth\"\n :height=\"containerHeight\"\n style=\"display: none;\"\n />\n <div\n class=\"z_container\"\n :style=\"{height: containerHeight/2+'px'}\"\n >\n <canvas\n id=\"canvas\"\n ref=\"canvas\"\n class=\"z_barrage\"\n :width=\"containerWidth\"\n :height=\"containerHeight\"\n :style=\"{'width': containerWidth/2 + 'px',\n 'height': containerHeight/2 + 'px'}\"\n />\n </div>\n </div>\n</template>\n\n<script>\n// import faceMap from '../../assets/emoji'\nexport default {\n name: 'Barrage',\n props: {\n barrageList: {\n type: Array,\n default: () => []\n },\n speed: {\n type: Number,\n default: 4\n },\n loop: {\n type: Boolean,\n default: true\n },\n channels: {\n type: Number,\n default: 2\n },\n barrageHeight: {\n type: Number,\n default: 60\n },\n screenPercent: {\n type: Number,\n default: 0.3\n },\n borderColor: {\n type: String,\n default: ''\n },\n background: {\n type: String,\n default: ''\n },\n linearGradient: {\n type: Object,\n default: () => {\n return {\n startColor: '',\n endColor: ''\n }\n }\n }\n },\n data () {\n return {\n newBarrageArray: [], // 新增弹幕之后的总弹幕\n barrageArray: [],\n barrageQueue: [],\n containerWidth: 0,\n containerHeight: 0,\n channelsArray: [],\n barrageChannels: 1\n }\n },\n watch: {\n barrageList (val) {\n if (val.length !== 0) {\n this.barrageQueue = JSON.parse(JSON.stringify(val))\n this.newBarrageArray = JSON.parse(JSON.stringify(val))\n this.initData()\n window.requestAnimationFrame(this.render)\n }\n }\n },\n mounted () {\n this.containerWidth = document.body.clientWidth * 2\n this.containerHeight = window.screen.height * this.screenPercent > 2 * this.barrageHeight ? window.screen.height * this.screenPercent : (this.barrageHeight + 30) // 设定总高度\n this.barrageChannels = Math.floor(this.containerHeight / (this.barrageHeight + 30)) || this.channels // 总高度对应的轨道数\n this.ctx = this.$refs.canvas.getContext('2d')\n this.ctx1 = this.$refs.canvasContainer.getContext('2d')\n this.barrageClickEvent()\n },\n methods: {\n /**\n * 数据初始化\n */\n initData () {\n for (let i = 0; i < this.barrageQueue.length; i++) { // 此处处理只显示50个字符\n let tagImg = null\n let img = null\n if (this.barrageQueue[i].icon) {\n img = new Image()\n img.src = this.barrageQueue[i].icon\n }\n if (this.barrageQueue[i].tagImage) {\n tagImg = new Image()\n tagImg.src = this.barrageQueue[i].tagImage\n }\n let content = this.dealStr(this.barrageQueue[i].content)\n this.barrageArray.push({\n id: this.barrageQueue[i].id,\n content: content,\n x: this.containerWidth + this.barrageHeight,\n icon: img,\n tagImage: tagImg,\n width: this.ctx1.measureText(content).width * 3 + (this.barrageQueue[i].icon ? 60 : 0),\n color: this.barrageQueue[i].color || '#FFFFFF',\n bgColor: this.barrageQueue[i].bgColor || 'rgba(0,0,0,0.4)'\n })\n }\n this.initChannel()\n },\n /**\n * 初始化轨道数据\n */\n initChannel () {\n for (let i = 0; i < this.barrageChannels; i++) {\n let item = this.barrageArray.shift()\n if (item) {\n this.channelsArray[i] = [item]\n } else {\n this.channelsArray[i] = []\n }\n }\n },\n /**\n * 渲染\n */\n render () {\n this.ctx.clearRect(0, 0, this.containerWidth, this.containerHeight)\n this.ctx.font = '30px Microsoft YaHei'\n this.draw()\n window.requestAnimationFrame(this.render)\n },\n draw () {\n for (let i = 0; i < this.channelsArray.length; i++) {\n for (let j = 0; j < this.channelsArray[i].length; j++) {\n try {\n let barrage = this.channelsArray[i][j]\n barrage.x -= this.speed\n if (barrage.x <= this.containerWidth) { // 弹幕显示\n this.borderColor && this.drawRoundRectBorder(this.ctx, barrage.x - this.barrageHeight / 2, i * (this.barrageHeight + 20) + 20, barrage.width + this.barrageHeight, this.barrageHeight, this.barrageHeight / 2)\n this.drawRoundRect(this.ctx, barrage.bgColor, barrage.x - this.barrageHeight / 2, i * (this.barrageHeight + 20) + 21, barrage.width + this.barrageHeight, this.barrageHeight - 2, this.barrageHeight / 2)\n this.ctx.fillStyle = `${barrage.color}`\n this.ctx.fillText(barrage.content, barrage.x + (barrage.icon ? this.barrageHeight / 2 + 20 : -5), i * (this.barrageHeight + 20) + this.barrageHeight)\n if (barrage.icon) {\n this.circleImg(this.ctx, barrage.icon, barrage.x - 10, i * (this.barrageHeight + 20) + 26, 24)\n }\n if (barrage.tagImage) {\n this.originImg(this.ctx, barrage.tagImage, barrage.x - this.barrageHeight - 10, i * (this.barrageHeight + 20) + 20, this.barrageHeight, this.barrageHeight)\n }\n }\n if (barrage.x < -(barrage.width + this.barrageHeight)) { // 弹幕删除\n let arr = this.channelsArray.reduce((a, b) => a.concat(b))\n if (this.loop) {\n if (this.checkBarrageStatus(arr)) {\n this.barrageQueue = []\n this.barrageQueue = JSON.parse(JSON.stringify(this.newBarrageArray))\n this.initData()\n }\n }\n }\n // 弹幕插入时机判断\n if (barrage.x <= Math.floor((this.containerWidth - barrage.width - 40)) && barrage.x >= Math.floor(this.containerWidth - barrage.width - 40 - this.speed) && (j === this.channelsArray[i].length - 1) && this.barrageArray.length !== 0) {\n let item = this.barrageArray.shift()\n this.channelsArray[i].push(item)\n }\n } catch (e) {\n console.log(e)\n }\n }\n }\n },\n /**\n * 重置数据\n */\n add (obj) {\n let content = this.dealStr(obj.content)\n let img = null\n let tagImg = null\n if (obj.icon) {\n img = new Image()\n img.src = obj.icon\n }\n if (obj.tagImage) {\n tagImg = new Image()\n tagImg.src = obj.tagImage\n }\n let item = {\n id: obj.id,\n content: content,\n x: this.containerWidth + this.barrageHeight,\n icon: obj.icon ? img : '',\n tagImage: obj.tagImage ? tagImg : '',\n width: this.ctx1.measureText(content).width * 3 + (obj.icon ? this.barrageHeight : 0),\n color: obj.color || '#FFFFFF',\n bgColor: obj.bgColor || 'rgba(0,0,0,0.4)'\n }\n let originItem = {\n id: obj.id,\n content: obj.content,\n icon: obj.icon,\n tagImage: obj.tagImage,\n color: obj.color || '#FFFFFF',\n bgColor: obj.bgColor || 'rgba(0,0,0,0.4)'\n }\n if (this.barrageArray.length === 0) { // 剩余弹幕数为0\n this.newBarrageArray.unshift(originItem)\n } else {\n this.barrageArray.unshift(item)\n let insertIndex = this.barrageList.length - this.barrageArray.length\n this.newBarrageArray.splice(insertIndex, 0, originItem)\n }\n },\n /**\n * 弹幕点击事件\n */\n barrageClickEvent () {\n document.getElementById('canvas').addEventListener('click', (e) => {\n const p = this.getEventPosition(e)\n let channelIndex = Math.floor(p.y / (this.barrageHeight + 30))\n const tempArray = JSON.parse(JSON.stringify(this.channelsArray[channelIndex]))\n for (let i = 0; i < tempArray.length; i++) {\n let channelItemArray = tempArray[i]\n if (p.x > channelItemArray.x && p.x < (channelItemArray.x + channelItemArray.width)) {\n if (channelItemArray.id) {\n this.$emit('doLike', channelItemArray.id)\n }\n }\n }\n }, false)\n },\n /**\n * 获取点击位置\n */\n getEventPosition (ev) {\n let x, y\n if (ev.layerX || ev.layerX === 0) {\n x = ev.layerX\n y = ev.layerY\n } else if (ev.offsetX || ev.offsetX === 0) {\n x = ev.offsetX\n y = ev.offsetY\n }\n return { x: 2 * x, y: 2 * y }\n },\n /**\n * 判断所有的弹幕是否滚动完成\n * @params arr\n */\n checkBarrageStatus (arr) {\n for (let i = 0; i < arr.length; i++) {\n if (arr[i].x > -arr[i].width) return false\n }\n return true\n },\n /**\n * 处理字符\n */\n dealStr (str) {\n return str.length > 50 ? `${str.substring(0, 50)}...` : str\n },\n /**\n * 获取随机颜色\n */\n getColor () {\n return `#${Math.floor(Math.random() * 16777215).toString(16)}`\n },\n /**\n * 裁剪图片\n * @param ctx\n * @param img\n * @param x\n * @param y\n * @param r\n */\n circleImg (ctx, img, x, y, r) {\n ctx.save()\n let d = 2 * r\n let cx = x + r\n let cy = y + r\n ctx.beginPath()\n ctx.arc(cx, cy, r, 0, 2 * Math.PI)\n ctx.clip()\n ctx.drawImage(img, x, y, d, d)\n ctx.restore()\n ctx.closePath()\n },\n /**\n * 绘制原始图片\n * @param ctx\n * @param img\n * @param x\n * @param y\n * @param width\n * @param height\n */\n originImg (ctx, img, x, y, width, height) {\n try {\n ctx.beginPath()\n ctx.drawImage(img, x, y, width, height)\n ctx.closePath()\n } catch (e) {\n console.log(e)\n }\n },\n /**\n * 绘画圆角矩形\n * @param context\n * @param bgColor\n * @param x\n * @param y\n * @param width\n * @param height\n * @param radius\n */\n drawRoundRect (context, bgColor, x, y, width, height, radius) {\n if (this.linearGradient.startColor && this.linearGradient.endColor) {\n let linearGrad = context.createLinearGradient(x, y, x, y + height)\n linearGrad.addColorStop(0, this.linearGradient.startColor)\n linearGrad.addColorStop(1, this.linearGradient.endColor)\n context.fillStyle = linearGrad || bgColor\n } else {\n context.fillStyle = this.background || bgColor\n }\n context.beginPath()\n context.arc(x + radius, y + radius, radius, Math.PI, Math.PI * 3 / 2)\n context.lineTo(width - radius + x, y)\n context.arc(width - radius + x, radius + y, radius, Math.PI * 3 / 2, Math.PI * 2)\n context.lineTo(width + x, height + y - radius)\n context.arc(width - radius + x, height - radius + y, radius, 0, Math.PI / 2)\n context.lineTo(radius + x, height + y)\n context.arc(radius + x, height - radius + y, radius, Math.PI / 2, Math.PI)\n context.fill()\n context.closePath()\n },\n /**\n * 绘画圆角矩形\n * @param context\n * @param x\n * @param y\n * @param width\n * @param height\n * @param radius 半径\n */\n drawRoundRectBorder (context, x, y, width, height, radius) {\n context.beginPath()\n context.lineWidth = 2\n context.strokeStyle = this.borderColor\n context.arc(x + radius, y + radius, radius, Math.PI, Math.PI * 3 / 2)\n context.lineTo(width - radius + x, y)\n context.arc(width - radius + x, radius + y, radius, Math.PI * 3 / 2, Math.PI * 2)\n context.lineTo(width + x, height + y - radius)\n context.arc(width - radius + x, height - radius + y, radius, 0, Math.PI / 2)\n context.lineTo(radius + x, height + y)\n context.arc(radius + x, height - radius + y, radius, Math.PI / 2, Math.PI)\n context.stroke()\n context.closePath()\n }\n }\n}\n</script>\n\n<style lang=\"css\" scoped>\n .z_barrage-container {\n pointer-events: none;\n }\n .z_container {\n width: 100%;\n overflow: hidden;\n }\n .z_barrage {\n position: absolute;\n top: 0;\n left: 0;\n }\n</style>\n"],"sourceRoot":""}]);
// exports
/***/ }),
/* 5 */
/***/ (function(module, exports) {
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
// css base code, injected by the css-loader
module.exports = function(useSourceMap) {
var list = [];
// return the list of modules as css string
list.toString = function toString() {
return this.map(function (item) {
var content = cssWithMappingToString(item, useSourceMap);
if(item[2]) {
return "@media " + item[2] + "{" + content + "}";
} else {
return content;
}
}).join("");
};
// import a list of modules into the list
list.i = function(modules, mediaQuery) {
if(typeof modules === "string")
modules = [[null, modules, ""]];
var alreadyImportedModules = {};
for(var i = 0; i < this.length; i++) {
var id = this[i][0];
if(typeof id === "number")
alreadyImportedModules[id] = true;
}
for(i = 0; i < modules.length; i++) {
var item = modules[i];
// skip already imported module
// this implementation is not 100% perfect for weird media query combinations
// when a module is imported multiple times with different media queries.
// I hope this will never occur (Hey this way we have smaller bundles)
if(typeof item[0] !== "number" || !alreadyImportedModules[item[0]]) {
if(mediaQuery && !item[2]) {
item[2] = mediaQuery;
} else if(mediaQuery) {
item[2] = "(" + item[2] + ") and (" + mediaQuery + ")";
}
list.push(item);
}
}
};
return list;
};
function cssWithMappingToString(item, useSourceMap) {
var content = item[1] || '';
var cssMapping = item[3];
if (!cssMapping) {
return content;
}
if (useSourceMap && typeof btoa === 'function') {
var sourceMapping = toComment(cssMapping);
var sourceURLs = cssMapping.sources.map(function (source) {
return '/*# sourceURL=' + cssMapping.sourceRoot + source + ' */'
});
return [content].concat(sourceURLs).concat([sourceMapping]).join('\n');
}
return [content].join('\n');
}
// Adapted from convert-source-map (MIT)
function toComment(sourceMap) {
// eslint-disable-next-line no-undef
var base64 = btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap))));
var data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;
return '/*# ' + data + ' */';
}
/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
Modified by Evan You @yyx990803
*/
var hasDocument = typeof document !== 'undefined'
if (typeof DEBUG !== 'undefined' && DEBUG) {
if (!hasDocument) {
throw new Error(
'vue-style-loader cannot be used in a non-browser environment. ' +
"Use { target: 'node' } in your Webpack config to indicate a server-rendering environment."
) }
}
var listToStyles = __webpack_require__(7)
/*
type StyleObject = {
id: number;
parts: Array<StyleObjectPart>
}
type StyleObjectPart = {
css: string;
media: string;
sourceMap: ?string
}
*/
var stylesInDom = {/*
[id: number]: {
id: number,
refs: number,
parts: Array<(obj?: StyleObjectPart) => void>
}
*/}
var head = hasDocument && (document.head || document.getElementsByTagName('head')[0])
var singletonElement = null
var singletonCounter = 0
var isProduction = false
var noop = function () {}
var options = null
var ssrIdKey = 'data-vue-ssr-id'
// Force single-tag solution on IE6-9, which has a hard limit on the # of <style>
// tags it will allow on a page
var isOldIE = typeof navigator !== 'undefined' && /msie [6-9]\b/.test(navigator.userAgent.toLowerCase())
module.exports = function (parentId, list, _isProduction, _options) {
isProduction = _isProduction
options = _options || {}
var styles = listToStyles(parentId, list)
addStylesToDom(styles)
return function update (newList) {
var mayRemove = []
for (var i = 0; i < styles.length; i++) {
var item = styles[i]
var domStyle = stylesInDom[item.id]
domStyle.refs--
mayRemove.push(domStyle)
}
if (newList) {
styles = listToStyles(parentId, newList)
addStylesToDom(styles)
} else {
styles = []
}
for (var i = 0; i < mayRemove.length; i++) {
var domStyle = mayRemove[i]
if (domStyle.refs === 0) {
for (var j = 0; j < domStyle.parts.length; j++) {
domStyle.parts[j]()
}
delete stylesInDom[domStyle.id]
}
}
}
}
function addStylesToDom (styles /* Array<StyleObject> */) {
for (var i = 0; i < styles.length; i++) {
var item = styles[i]
var domStyle = stylesInDom[item.id]
if (domStyle) {
domStyle.refs++
for (var j = 0; j < domStyle.parts.length; j++) {
domStyle.parts[j](item.parts[j])
}
for (; j < item.parts.length; j++) {
domStyle.parts.push(addStyle(item.parts[j]))
}
if (domStyle.parts.length > item.parts.length) {
domStyle.parts.length = item.parts.length
}
} else {
var parts = []
for (var j = 0; j < item.parts.length; j++) {
parts.push(addStyle(item.parts[j]))
}
stylesInDom[item.id] = { id: item.id, refs: 1, parts: parts }
}
}
}
function createStyleElement () {
var styleElement = document.createElement('style')
styleElement.type = 'text/css'
head.appendChild(styleElement)
return styleElement
}
function addStyle (obj /* StyleObjectPart */) {
var update, remove
var styleElement = document.querySelector('style[' + ssrIdKey + '~="' + obj.id + '"]')
if (styleElement) {
if (isProduction) {
// has SSR styles and in production mode.
// simply do nothing.
return noop
} else {
// has SSR styles but in dev mode.
// for some reason Chrome can't handle source map in server-rendered
// style tags - source maps in <style> only works if the style tag is
// created and inserted dynamically. So we remove the server rendered
// styles and inject new ones.
styleElement.parentNode.removeChild(styleElement)
}
}
if (isOldIE) {
// use singleton mode for IE9.
var styleIndex = singletonCounter++
styleElement = singletonElement || (singletonElement = createStyleElement())
update = applyToSingletonTag.bind(null, styleElement, styleIndex, false)
remove = applyToSingletonTag.bind(null, styleElement, styleIndex, true)
} else {
// use multi-style-tag mode in all other cases
styleElement = createStyleElement()
update = applyToTag.bind(null, styleElement)
remove = function () {
styleElement.parentNode.removeChild(styleElement)
}
}
update(obj)
return function updateStyle (newObj /* StyleObjectPart */) {
if (newObj) {
if (newObj.css === obj.css &&
newObj.media === obj.media &&
newObj.sourceMap === obj.sourceMap) {
return
}
update(obj = newObj)
} else {
remove()
}
}
}
var replaceText = (function () {
var textStore = []
return function (index, replacement) {
textStore[index] = replacement
return textStore.filter(Boolean).join('\n')
}
})()
function applyToSingletonTag (styleElement, index, remove, obj) {
var css = remove ? '' : obj.css
if (styleElement.styleSheet) {
styleElement.styleSheet.cssText = replaceText(index, css)
} else {
var cssNode = document.createTextNode(css)
var childNodes = styleElement.childNodes
if (childNodes[index]) styleElement.removeChild(childNodes[index])
if (childNodes.length) {
styleElement.insertBefore(cssNode, childNodes[index])
} else {
styleElement.appendChild(cssNode)
}
}
}
function applyToTag (styleElement, obj) {
var css = obj.css
var media = obj.media
var sourceMap = obj.sourceMap
if (media) {
styleElement.setAttribute('media', media)
}
if (options.ssrId) {
styleElement.setAttribute(ssrIdKey, obj.id)
}
if (sourceMap) {
// https://developer.chrome.com/devtools/docs/javascript-debugging
// this makes source maps inside style tags work properly in Chrome
css += '\n/*# sourceURL=' + sourceMap.sources[0] + ' */'
// http://stackoverflow.com/a/26603875
css += '\n/*# sourceMappingURL=data:application/json;base64,' + btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))) + ' */'
}
if (styleElement.styleSheet) {
styleElement.styleSheet.cssText = css
} else {
while (styleElement.firstChild) {
styleElement.removeChild(styleElement.firstChild)
}
styleElement.appendChild(document.createTextNode(css))
}
}
/***/ }),
/* 7 */
/***/ (function(module, exports) {
/**
* Translates the list format produced by css-loader into something
* easier to manipulate.
*/
module.exports = function listToStyles (parentId, list) {
var styles = []
var newStyles = {}
for (var i = 0; i < list.length; i++) {
var item = list[i]
var id = item[0]
var css = item[1]
var media = item[2]
var sourceMap = item[3]
var part = {
id: parentId + ':' + i,
css: css,
media: media,
sourceMap: sourceMap
}
if (!newStyles[id]) {
styles.push(newStyles[id] = { id: id, parts: [part] })
} else {
newStyles[id].parts.push(part)
}
}
return styles
}
/***/ }),
/* 8 */
/***/ (function(module, exports) {
/* globals __VUE_SSR_CONTEXT__ */
// IMPORTANT: Do NOT use ES2015 features in this file.
// This module is a runtime utility for cleaner component module output and will
// be included in the final webpack user bundle.
module.exports = function normalizeComponent (
rawScriptExports,
compiledTemplate,
functionalTemplate,
injectStyles,
scopeId,
moduleIdentifier /* server only */
) {
var esModule
var scriptExports = rawScriptExports = rawScriptExports || {}
// ES6 modules interop
var type = typeof rawScriptExports.default
if (type === 'object' || type === 'function') {
esModule = rawScriptExports
scriptExports = rawScriptExports.default
}
// Vue.extend constructor export interop
var options = typeof scriptExports === 'function'
? scriptExports.options
: scriptExports
// render functions
if (compiledTemplate) {
options.render = compiledTemplate.render
options.staticRenderFns = compiledTemplate.staticRenderFns
options._compiled = true
}
// functional template
if (functionalTemplate) {
options.functional = true
}
// scopedId
if (scopeId) {
options._scopeId = scopeId
}
var hook
if (moduleIdentifier) { // server build
hook = function (context) {
// 2.3 injection
context =
context || // cached call
(this.$vnode && this.$vnode.ssrContext) || // stateful
(this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional
// 2.2 with runInNewContext: true
if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
context = __VUE_SSR_CONTEXT__
}
// inject component styles
if (injectStyles) {
injectStyles.call(this, context)
}
// register component module identifier for async chunk inferrence
if (context && context._registeredComponents) {
context._registeredComponents.add(moduleIdentifier)
}
}
// used by ssr in case component is cached and beforeCreate
// never gets called
options._ssrRegister = hook
} else if (injectStyles) {
hook = injectStyles
}
if (hook) {
var functional = options.functional
var existing = functional
? options.render
: options.beforeCreate
if (!functional) {
// inject component registration as beforeCreate hook
options.beforeCreate = existing
? [].concat(existing, hook)
: [hook]
} else {
// for template-only hot-reload because in that case the render fn doesn't
// go through the normalizer
options._injectStyles = hook
// register for functioal component in vue file
options.render = function renderWithStyleInjection (h, context) {
hook.call(context)
return existing(h, context)
}
}
}
return {
esModule: esModule,
exports: scriptExports,
options: options
}
}
/***/ }),
/* 9 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
var render = function() {
var _vm = this
var _h = _vm.$createElement
var _c = _vm._self._c || _h
return _c("div", { staticClass: "z_barrage-container" }, [
_c("canvas", {
ref: "canvasContainer",
staticStyle: { display: "none" },
attrs: { width: _vm.containerWidth, height: _vm.containerHeight }
}),
_vm._v(" "),
_c(
"div",
{
staticClass: "z_container",
style: { height: _vm.containerHeight / 2 + "px" }
},
[
_c("canvas", {
ref: "canvas",
staticClass: "z_barrage",
style: {
width: _vm.containerWidth / 2 + "px",
height: _vm.containerHeight / 2 + "px"
},
attrs: {
id: "canvas",
width: _vm.containerWidth,
height: _vm.containerHeight
}
})
]
)
])
}
var staticRenderFns = []
render._withStripped = true
var esExports = { render: render, staticRenderFns: staticRenderFns }
/* harmony default export */ __webpack_exports__["a"] = (esExports);
if (false) {
module.hot.accept()
if (module.hot.data) {
require("vue-hot-reload-api") .rerender("data-v-2ac013d2", esExports)
}
}
/***/ })
/******/ ]);
});
//# sourceMappingURL=barrage.min.js.map