export function addDirective(app) { /** * 拖拽指令使用方式：v-drag="[dragDom, dragHeader]"，如 `<div v-drag="['.drag-container .el-dialog', '.drag-container .el-dialog__header']"></div>` */ app.directive('drag', { mounted(el, binding) { if (!binding.value) return false; binding.instance.$nextTick(() => { const dragDom = document.querySelector(binding.value[0]) const dragHeader = document.querySelector(binding.value[1]) dragHeader.onmouseover = () => (dragHeader.style.cursor = `move`); function down(e, type) { // 鼠标按下，计算当前元素距离可视区的距离 const disX = type === 'pc' ? e.clientX - dragHeader.offsetLeft : e.touches[0].clientX - dragHeader.offsetLeft; const disY = type === 'pc' ? e.clientY - dragHeader.of