榆钱落尽槿花稀
6c0af29edc
实现签名确认功能，支持生成签名图片并上传至服务器 添加图片预览和保存功能，优化用户交互体验 重构页面布局和样式，增加时间戳显示 集成API调用处理签名数据的获取和提交
59 lines
1.5 KiB
JavaScript
59 lines
1.5 KiB
JavaScript
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function v(a, b) {
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return +((1000 * a - 1000 * b) / 1000).toFixed(1)
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}
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module.exports = {
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created() {
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if (this._setTransform) {
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this._setTransform = (x, y, scale, source = '', r, o) => {
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if (!(x !== null && x.toString() !== 'NaN' && typeof x === 'number')) {
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x = this._translateX || 0
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}
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if (!(y !== null && y.toString() !== 'NaN' && typeof y === 'number')) {
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y = this._translateY || 0
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}
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x = Number(x.toFixed(1))
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y = Number(y.toFixed(1))
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scale = Number(scale.toFixed(1))
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if (!(this._translateX === x && this._translateY === y)) {
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if (!r) {
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this.$trigger('change', {}, {
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x: v(x, this._scaleOffset.x),
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y: v(y, this._scaleOffset.y),
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source: source
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})
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}
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}
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if (!this.scale) {
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scale = this._scale
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}
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scale = this._adjustScale(scale)
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scale = +scale.toFixed(3)
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if (o && scale !== this._scale) {
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this.$trigger('scale', {}, {
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x: x,
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y: y,
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scale: scale
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})
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}
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var transform = 'translateX(' + x + 'px) translateY(' + y + 'px) scale(' + scale + ')'
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this.$el.style.transform = transform
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this.$el.style.webkitTransform = transform
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this._translateX = x
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this._translateY = y
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this._scale = scale
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}
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}
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},
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destroyed() {
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//解决预览模式关闭后，和重复开关预览模式this._setTransform函数无限次执行导致手机卡顿的问题
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if (this._FA) {
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this._FA.cancel()
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}
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if (this._SFA) {
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this._SFA.cancel()
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}
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},
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methods: {
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}
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} |