vue-identifycode
Version:
基于 Vue 的图形校验码组件
418 lines (388 loc) • 12.4 kB
JavaScript
(function webpackUniversalModuleDefinition(root, factory) {
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else if(typeof define === 'function' && define.amd)
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/* 0 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
;
//
//
//
//
//
/* harmony default export */ __webpack_exports__["a"] = ({
name: "IdentifyCode",
props: {
identifyCode: {
type: String,
default: "1234"
},
fontSizeMin: {
type: Number,
default: 25
},
fontSizeMax: {
type: Number,
default: 30
},
backgroundColorMin: {
type: Number,
default: 180
},
backgroundColorMax: {
type: Number,
default: 240
},
colorMin: {
type: Number,
default: 50
},
colorMax: {
type: Number,
default: 160
},
lineColorMin: {
type: Number,
default: 40
},
lineColorMax: {
type: Number,
default: 180
},
dotColorMin: {
type: Number,
default: 0
},
dotColorMax: {
type: Number,
default: 255
},
contentWidth: {
type: Number,
default: 112
},
contentHeight: {
type: Number,
default: 38
}
},
mounted() {
this.drawPic();
},
watch: {
identifyCode() {
this.drawPic();
}
},
methods: {
// 生成一个随机数
randomNum(min, max) {
return Math.floor(Math.random() * (max - min) + min);
},
// 生成一个随机的颜色
randomColor(min, max) {
const r = this.randomNum(min, max);
const g = this.randomNum(min, max);
const b = this.randomNum(min, max);
return "rgb(" + r + "," + g + "," + b + ")";
},
drawPic() {
const canvas = document.getElementById("s-canvas");
const ctx = canvas.getContext("2d");
ctx.textBaseline = "bottom";
// 绘制背景
ctx.fillStyle = this.randomColor(this.backgroundColorMin, this.backgroundColorMax);
ctx.fillRect(0, 0, this.contentWidth, this.contentHeight);
// 绘制文字
for (let i = 0; i < this.identifyCode.length; i++) {
this.drawText(ctx, this.identifyCode[i], i);
}
this.drawLine(ctx);
this.drawDot(ctx);
},
drawText(ctx, txt, i) {
ctx.fillStyle = this.randomColor(this.colorMin, this.colorMax);
ctx.font = this.randomNum(this.fontSizeMin, this.fontSizeMax) + "px SimHei";
const x = (i + 1) * (this.contentWidth / (this.identifyCode.length + 1));
const y = this.randomNum(this.fontSizeMax, this.contentHeight - 5);
var deg = this.randomNum(-45, 45);
// 修改坐标原点和旋转角度
ctx.translate(x, y);
//ctx.rotate((deg * Math.PI) / 180);
ctx.rotate(0);
ctx.fillText(txt, 0, 0);
// 恢复坐标原点和旋转角度
//ctx.rotate((-deg * Math.PI) / 180);
ctx.rotate(0);
ctx.translate(-x, -y);
},
drawLine(ctx) {
// 绘制干扰线
for (let i = 0; i < 4; i++) {
ctx.strokeStyle = this.randomColor(this.lineColorMin, this.lineColorMax);
ctx.beginPath();
ctx.moveTo(this.randomNum(0, this.contentWidth), this.randomNum(0, this.contentHeight));
ctx.lineTo(this.randomNum(0, this.contentWidth), this.randomNum(0, this.contentHeight));
ctx.stroke();
}
},
drawDot(ctx) {
// 绘制干扰点
for (let i = 0; i < 50; i++) {
ctx.fillStyle = this.randomColor(0, 255);
ctx.beginPath();
ctx.arc(this.randomNum(0, this.contentWidth), this.randomNum(0, this.contentHeight), 1, 0, 2 * Math.PI);
ctx.fill();
}
}
}
});
/***/ }),
/* 1 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
;
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__component_index_vue__ = __webpack_require__(2);
/* harmony default export */ __webpack_exports__["default"] = (__WEBPACK_IMPORTED_MODULE_0__component_index_vue__["a" /* default */]);
/***/ }),
/* 2 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_index_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_f3ef6b12_hasScoped_false_buble_transforms_node_modules_vue_loader_lib_selector_type_template_index_0_index_vue__ = __webpack_require__(4);
var disposed = false
var normalizeComponent = __webpack_require__(3)
/* script */
/* template */
/* template functional */
var __vue_template_functional__ = false
/* styles */
var __vue_styles__ = null
/* scopeId */
var __vue_scopeId__ = null
/* 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_index_vue__["a" /* default */],
__WEBPACK_IMPORTED_MODULE_1__node_modules_vue_loader_lib_template_compiler_index_id_data_v_f3ef6b12_hasScoped_false_buble_transforms_node_modules_vue_loader_lib_selector_type_template_index_0_index_vue__["a" /* default */],
__vue_template_functional__,
__vue_styles__,
__vue_scopeId__,
__vue_module_identifier__
)
Component.options.__file = "src/component/index.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-f3ef6b12", Component.options)
} else {
hotAPI.reload("data-v-f3ef6b12", Component.options)
}
module.hot.dispose(function (data) {
disposed = true
})
})()}
/* harmony default export */ __webpack_exports__["a"] = (Component.exports);
/***/ }),
/* 3 */
/***/ (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
}
}
/***/ }),
/* 4 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
;
var render = function() {
var _vm = this
var _h = _vm.$createElement
var _c = _vm._self._c || _h
return _c("div", { staticClass: "s-canvas" }, [
_c("canvas", {
attrs: {
id: "s-canvas",
width: _vm.contentWidth,
height: _vm.contentHeight
}
})
])
}
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-f3ef6b12", esExports)
}
}
/***/ })
/******/ ]);
});