feat(modal): add cancellable shared runtime
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Claude Fable 5
@@ -0,0 +1,416 @@
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/**
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* Canonical frontend modal runtime.
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*
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* Keeps the existing remote-modal shell while adding cancellable loaders,
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* short in-memory caching, request deduplication, retryable errors, focus
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* restoration, and modal-scoped rehydration.
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*
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* @package AKSRT
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*/
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(function (window, document) {
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"use strict";
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var ROOT_ID = "aksrt-remote-modal-root";
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var active = null;
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var sequence = 0;
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var loaders = Object.create(null);
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function isMobile() {
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return window.matchMedia && window.matchMedia("(max-width: 768px)").matches;
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}
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function ensureRoot() {
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var root = document.getElementById(ROOT_ID);
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if (root) return root;
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root = document.createElement("div");
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root.id = ROOT_ID;
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root.className = "aksrt-remote-modal-host";
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document.body.appendChild(root);
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return root;
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}
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function escapeHtml(value) {
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return String(value == null ? "" : value)
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.replace(/&/g, "&")
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.replace(/</g, "<")
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.replace(/>/g, ">")
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.replace(/\"/g, """)
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.replace(/'/g, "'");
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}
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function lockScroll(lock) {
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document.documentElement.classList.toggle("aksrt-remote-modal-open", !!lock);
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document.body.classList.toggle("aksrt-remote-modal-open", !!lock);
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}
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function skeleton(options) {
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return (options && options.skeleton) ||
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'<div class="aksrt-remote-modal__skeleton" aria-live="polite" aria-busy="true">' +
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'<span class="aksrt-remote-modal__skeleton-line is-wide"></span>' +
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'<span class="aksrt-remote-modal__skeleton-line"></span>' +
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'<span class="aksrt-remote-modal__skeleton-line is-short"></span>' +
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'<span class="aksrt-remote-modal__skeleton-block"></span>' +
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'</div>';
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}
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function telemetryStart(kind) {
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if (kind === false) return "";
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var telemetry = window.AksrtModalTelemetry;
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if (!telemetry || typeof telemetry.start !== "function") return "";
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return telemetry.start(kind || "unknown");
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}
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function telemetryMark(session, event) {
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var telemetry = window.AksrtModalTelemetry;
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if (!session || !session.telemetryId || !telemetry || typeof telemetry.mark !== "function") return;
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telemetry.mark(session.telemetryId, event);
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}
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function setState(session, status, error) {
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session.state.status = status;
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session.state.error = error || null;
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session.state.updatedAt = Date.now();
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if (session.shell) session.shell.setAttribute("data-aksrt-modal-state", status);
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if (typeof session.options.onState === "function") {
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session.options.onState(status, session);
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}
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}
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function focusable(shell) {
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return shell.querySelectorAll("button:not([disabled]), [href], input:not([disabled]), select:not([disabled]), textarea:not([disabled]), [tabindex]:not([tabindex='-1'])");
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}
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function closeSelector() {
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return "[data-aksrt-remote-modal-close], [data-aksrt-modal-close], [data-dismiss='modal'], .aksrt-remote-modal__close, .aksrt-vip-modal-close, .payvip-modal .close";
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}
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function bindChrome(session) {
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var shell = session.shell;
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shell.addEventListener("click", function (event) {
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var closeButton = event.target.closest(closeSelector());
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if (closeButton) {
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event.preventDefault();
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close("control");
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return;
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}
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if (event.target === shell || event.target.classList.contains("aksrt-remote-modal__overlay")) {
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close("overlay");
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return;
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}
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var retry = event.target.closest("[data-aksrt-remote-modal-retry], [data-aksrt-modal-retry]");
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if (retry) {
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event.preventDefault();
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refresh();
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}
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});
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shell.addEventListener("keydown", function (event) {
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if (event.key === "Escape") {
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event.preventDefault();
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close("escape");
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return;
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}
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if (event.key !== "Tab") return;
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var nodes = focusable(shell);
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if (!nodes.length) {
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event.preventDefault();
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shell.focus();
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return;
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}
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var first = nodes[0];
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var last = nodes[nodes.length - 1];
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if (event.shiftKey && document.activeElement === first) {
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event.preventDefault();
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last.focus();
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} else if (!event.shiftKey && document.activeElement === last) {
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event.preventDefault();
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first.focus();
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}
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});
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}
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function createSession(options) {
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options = options || {};
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var root = ensureRoot();
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var shell = document.createElement("div");
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var bottom = options.bottom === true || (options.mobileBottom !== false && isMobile());
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var heightStyle = options.height ? "min-height:" + parseInt(options.height, 10) + "px;" : "";
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var initialHtml = options.html !== undefined ? options.html : skeleton(options);
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shell.className =
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"aksrt-remote-modal" +
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(bottom ? " aksrt-remote-modal--bottom" : "") +
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(options.className ? " " + options.className : "");
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shell.setAttribute("role", "dialog");
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shell.setAttribute("aria-modal", "true");
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shell.setAttribute("tabindex", "-1");
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shell.innerHTML =
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'<div class="aksrt-remote-modal__overlay" data-aksrt-remote-modal-close></div>' +
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'<div class="aksrt-remote-modal__dialog" style="' + heightStyle + '">' +
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'<div class="aksrt-remote-modal__content">' + initialHtml + "</div></div>";
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var session = {
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id: String(++sequence),
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shell: shell,
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content: shell.querySelector(".aksrt-remote-modal__content"),
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options: options,
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state: window.AksrtModalState && typeof window.AksrtModalState.create === "function"
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? window.AksrtModalState.create(options.kind || "generic")
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: { status: "idle", error: null },
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focusReturn: document.activeElement,
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controller: null,
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flight: null,
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closed: false,
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telemetryId: telemetryStart(options.telemetry === false ? false : options.kind),
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};
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root.appendChild(shell);
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bindChrome(session);
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active = session;
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lockScroll(true);
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void shell.offsetWidth;
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shell.classList.add("is-open");
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setState(session, options.html !== undefined ? "ready" : "loading");
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telemetryMark(session, "shell");
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var nodes = focusable(shell);
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try {
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(nodes.length ? nodes[0] : shell).focus();
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} catch (error) {}
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document.dispatchEvent(new CustomEvent("aksrt:remote-modal:open", {
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detail: { shell: shell, options: options, session: session },
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}));
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document.dispatchEvent(new CustomEvent("aksrt:modal:open", {
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detail: { shell: shell, options: options, session: session },
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}));
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if (options.html !== undefined) {
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rehydrate(session);
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telemetryMark(session, "first-content");
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telemetryMark(session, "ready");
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if (typeof options.onContent === "function") options.onContent(options.html, session);
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}
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return session;
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}
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function rehydrate(session) {
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if (!session || !session.content) return;
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if (window.AksrtFrontend && typeof window.AksrtFrontend.rehydrate === "function") {
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window.AksrtFrontend.rehydrate(session.content, "modal");
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}
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}
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function abortSessionRequest(session) {
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if (!session) return;
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if (session.flight && typeof session.flight.release === "function") session.flight.release();
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session.flight = null;
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if (session.controller) {
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try { session.controller.abort(); } catch (error) {}
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}
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session.controller = null;
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}
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function close(reason, preserveRequest) {
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if (!active) return;
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var session = active;
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active = null;
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session.closed = true;
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if (!preserveRequest) abortSessionRequest(session);
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session.shell.classList.remove("is-open");
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if (!preserveRequest) lockScroll(false);
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document.dispatchEvent(new CustomEvent("aksrt:remote-modal:close", {
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detail: { shell: session.shell, reason: reason || "close", session: session },
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}));
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document.dispatchEvent(new CustomEvent("aksrt:modal:close", {
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detail: { shell: session.shell, reason: reason || "close", session: session },
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}));
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var node = session.shell;
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window.setTimeout(function () {
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if (node && node.parentNode) node.parentNode.removeChild(node);
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var target = session.focusReturn;
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if (!preserveRequest && !active && target && target !== node && document.contains(target) && typeof target.focus === "function") {
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try { target.focus(); } catch (error) {}
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}
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}, 220);
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}
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function responseHtml(result) {
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if (!result) return "";
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var json = result.json;
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if (json) {
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if (typeof json.html === "string") return json.html;
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if (json.data && typeof json.data.html === "string") return json.data.html;
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if (json.data && typeof json.data.show_modal === "string") return json.data.show_modal;
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if (typeof json.data === "string") return json.data;
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}
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return typeof result.text === "string" ? result.text : "";
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}
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function errorMessage(error) {
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if (error && error.code === "unauthorized") return "请先登录";
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return error && error.message ? String(error.message) : "加载失败，请重试";
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}
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function renderError(session, error) {
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if (!session || session.closed || active !== session) return;
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var unauthorized = error && error.code === "unauthorized";
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setState(session, unauthorized ? "unauthorized" : "error", error);
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telemetryMark(session, unauthorized ? "unauthorized" : "error");
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session.content.innerHTML =
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'<div class="aksrt-remote-modal__error touch border-title"><b>提示</b></div>' +
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'<div class="aksrt-remote-modal__error-body">' + escapeHtml(errorMessage(error)) +
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'</div><div class="but-average modal-buts">' +
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'<button type="button" class="but" data-aksrt-remote-modal-retry>重试</button>' +
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'<button type="button" class="but" data-aksrt-remote-modal-close>关闭</button></div>';
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rehydrate(session);
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if (typeof session.options.onError === "function") session.options.onError(error, session);
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}
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function renderResult(session, result) {
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if (!session || session.closed || active !== session) return;
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var html = responseHtml(result);
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if (!html) {
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setState(session, "empty");
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telemetryMark(session, "first-content");
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telemetryMark(session, "ready");
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session.content.innerHTML = '<div class="aksrt-remote-modal__error-body">暂无内容</div>';
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return;
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}
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session.content.innerHTML = html;
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setState(session, "ready");
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telemetryMark(session, "first-content");
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rehydrate(session);
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telemetryMark(session, "ready");
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if (typeof session.options.onContent === "function") session.options.onContent(html, session);
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}
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function load(session, loadOptions) {
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loadOptions = loadOptions || {};
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if (!session || session.closed || !session.options.url) return Promise.resolve(session && session.shell);
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abortSessionRequest(session);
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setState(session, "loading");
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session.content.innerHTML = skeleton(session.options);
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session.controller = window.AbortController ? new window.AbortController() : null;
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var requestOptions = {
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method: session.options.method || "GET",
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headers: session.options.headers || {},
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body: session.options.body,
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query: session.options.query,
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signal: session.controller ? session.controller.signal : undefined,
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};
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if (requestOptions.body === undefined) delete requestOptions.body;
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if (!requestOptions.signal) delete requestOptions.signal;
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var request = window.AksrtRequest && typeof window.AksrtRequest.request === "function"
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? function () { return window.AksrtRequest.request(session.options.url, requestOptions); }
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: function () {
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return window.fetch(session.options.url, requestOptions).then(function (response) {
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return response.text().then(function (text) { return { ok: response.ok, status: response.status, text: text, json: null }; });
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});
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};
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var method = String(session.options.method || "GET").toUpperCase();
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var cacheable = method === "GET" && session.options.cache !== false;
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var cacheKey = session.options.cacheKey ||
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method + ":" +
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(window.AksrtRequest && typeof window.AksrtRequest.url === "function"
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? window.AksrtRequest.url(session.options.url, session.options.query)
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: session.options.url);
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var cache = window.AksrtModalCache;
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var acquireOptions = {
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ttl: Number(session.options.cacheTtl || 15000),
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tags: session.options.cacheTags || session.options.tags || [],
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skipCache: !!loadOptions.force || !cacheable,
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store: cacheable,
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cancel: function () {
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if (session.controller) {
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try { session.controller.abort(); } catch (error) {}
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}
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},
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};
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session.flight = cacheable && cache && typeof cache.acquire === "function"
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? cache.acquire(cacheKey, request, acquireOptions)
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: { promise: request(), release: function () {} };
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return session.flight.promise.then(function (result) {
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if (!session.closed && active === session) renderResult(session, result);
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return session.shell;
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}).catch(function (error) {
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var aborted = error && (error.name === "AbortError" || error.code === "ABORT_ERR");
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if (!aborted && !session.closed && active === session) renderError(session, error);
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return session.shell;
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}).then(function (shell) {
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if (session.flight && typeof session.flight.release === "function") session.flight.release();
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session.flight = null;
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return shell;
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});
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}
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function open(options) {
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options = options || {};
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close("replace");
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var session = createSession(options);
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return session.shell;
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}
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function sessionKey(options) {
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if (!options || !options.url) return "";
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var method = String(options.method || "GET").toUpperCase();
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var requestUrl = window.AksrtRequest && typeof window.AksrtRequest.url === "function"
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? window.AksrtRequest.url(options.url, options.query)
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: String(options.url);
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return method + ":" + requestUrl;
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}
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function openRemote(options) {
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options = Object.assign({}, options || {});
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if (!options.url) return Promise.reject(new Error("missing url"));
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var sameRequest = active && active.flight && sessionKey(active.options) === sessionKey(options);
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close("replace", !!sameRequest);
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var session = createSession(options);
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return load(session).then(function () { return session.shell; });
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}
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function refresh(options) {
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if (!active || !active.options.url) return Promise.resolve(null);
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if (options && typeof options === "object") active.options = Object.assign({}, active.options, options);
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return load(active, { force: true });
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}
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function registerLoader(kind, loader) {
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if (!kind || typeof loader !== "function") return;
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loaders[String(kind)] = loader;
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}
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function openLoader(kind, context) {
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var loader = loaders[String(kind)];
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if (!loader) return Promise.reject(new Error("missing modal loader: " + kind));
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return openRemote(loader(context || {}));
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}
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function invalidate(tags) {
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if (window.AksrtModalCache && typeof window.AksrtModalCache.invalidate === "function") {
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return window.AksrtModalCache.invalidate(tags);
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}
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return 0;
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}
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window.AksrtModalRuntime = {
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open: open,
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openRemote: openRemote,
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close: close,
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refresh: refresh,
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registerLoader: registerLoader,
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openLoader: openLoader,
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invalidate: invalidate,
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getActive: function () { return active ? active.shell : null; },
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getState: function () { return active ? active.state : null; },
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};
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document.dispatchEvent(new CustomEvent("aksrt:modal-runtime:ready"));
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})(window, document);
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