tangweijie
5099f2e87e
- Vue 3 + TypeScript + Element Plus 前端界面 - Pinia 状态管理 - Vue Router 4 路由管理 - Axios HTTP 客户端 - MSW (Mock Service Worker) 开发环境模拟 - 账户管理界面 (列表、详情、三科目余额展示) - 交易管理界面 (列表、详情) - 对账管理界面 (三账校验) - 完善的 API 客户端封装 - Docker 容器化配置 - Nginx 配置用于生产环境
65 lines
2.0 KiB
JavaScript
65 lines
2.0 KiB
JavaScript
import { nextTick } from 'vue';
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import { obtainAllFocusableElements } from '../../utils/dom/aria.mjs';
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import { getEventCode } from '../../utils/dom/event.mjs';
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import { EVENT_CODE } from '../../constants/aria.mjs';
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const FOCUSABLE_CHILDREN = "_trap-focus-children";
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const TRAP_FOCUS_HANDLER = "_trap-focus-handler";
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const FOCUS_STACK = [];
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const FOCUS_HANDLER = (e) => {
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var _a;
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if (FOCUS_STACK.length === 0)
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return;
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const code = getEventCode(e);
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const focusableElement = FOCUS_STACK[FOCUS_STACK.length - 1][FOCUSABLE_CHILDREN];
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if (focusableElement.length > 0 && code === EVENT_CODE.tab) {
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if (focusableElement.length === 1) {
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e.preventDefault();
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if (document.activeElement !== focusableElement[0]) {
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focusableElement[0].focus();
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}
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return;
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}
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const goingBackward = e.shiftKey;
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const isFirst = e.target === focusableElement[0];
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const isLast = e.target === focusableElement[focusableElement.length - 1];
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if (isFirst && goingBackward) {
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e.preventDefault();
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focusableElement[focusableElement.length - 1].focus();
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}
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if (isLast && !goingBackward) {
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e.preventDefault();
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focusableElement[0].focus();
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}
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if (process.env.NODE_ENV === "test") {
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const index = focusableElement.indexOf(e.target);
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if (index !== -1) {
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(_a = focusableElement[goingBackward ? index - 1 : index + 1]) == null ? void 0 : _a.focus();
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}
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}
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}
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};
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const TrapFocus = {
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beforeMount(el) {
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el[FOCUSABLE_CHILDREN] = obtainAllFocusableElements(el);
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FOCUS_STACK.push(el);
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if (FOCUS_STACK.length <= 1) {
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document.addEventListener("keydown", FOCUS_HANDLER);
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}
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},
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updated(el) {
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nextTick(() => {
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el[FOCUSABLE_CHILDREN] = obtainAllFocusableElements(el);
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});
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},
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unmounted() {
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FOCUS_STACK.shift();
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if (FOCUS_STACK.length === 0) {
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document.removeEventListener("keydown", FOCUS_HANDLER);
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}
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}
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};
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export { FOCUSABLE_CHILDREN, TRAP_FOCUS_HANDLER, TrapFocus as default };
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//# sourceMappingURL=index.mjs.map
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