426 lines
15 KiB
JavaScript
426 lines
15 KiB
JavaScript
/**
|
|
* Canonical frontend modal runtime.
|
|
*
|
|
* Owns the modal shell while adding cancellable loaders,
|
|
* short in-memory caching, request deduplication, retryable errors, focus
|
|
* restoration, and modal-scoped rehydration.
|
|
*
|
|
* @package AKSRT
|
|
*/
|
|
(function (window, document) {
|
|
"use strict";
|
|
|
|
var ROOT_ID = "aksrt-modal-runtime-root";
|
|
var active = null;
|
|
var sequence = 0;
|
|
var loaders = Object.create(null);
|
|
|
|
function isMobile() {
|
|
return window.matchMedia && window.matchMedia("(max-width: 768px)").matches;
|
|
}
|
|
|
|
function ensureRoot() {
|
|
var root = document.getElementById(ROOT_ID);
|
|
if (root) return root;
|
|
root = document.createElement("div");
|
|
root.id = ROOT_ID;
|
|
root.className = "aksrt-modal-runtime-host";
|
|
document.body.appendChild(root);
|
|
return root;
|
|
}
|
|
|
|
function escapeHtml(value) {
|
|
return String(value == null ? "" : value)
|
|
.replace(/&/g, "&")
|
|
.replace(/</g, "<")
|
|
.replace(/>/g, ">")
|
|
.replace(/\"/g, """)
|
|
.replace(/'/g, "'");
|
|
}
|
|
|
|
function lockScroll(lock) {
|
|
document.documentElement.classList.toggle("aksrt-modal-runtime-open", !!lock);
|
|
document.body.classList.toggle("aksrt-modal-runtime-open", !!lock);
|
|
}
|
|
|
|
function skeleton(options) {
|
|
return (options && options.skeleton) ||
|
|
'<div class="aksrt-modal-runtime__skeleton" aria-live="polite" aria-busy="true">' +
|
|
'<span class="aksrt-modal-runtime__skeleton-line is-wide"></span>' +
|
|
'<span class="aksrt-modal-runtime__skeleton-line"></span>' +
|
|
'<span class="aksrt-modal-runtime__skeleton-line is-short"></span>' +
|
|
'<span class="aksrt-modal-runtime__skeleton-block"></span>' +
|
|
'</div>';
|
|
}
|
|
|
|
function telemetryStart(kind) {
|
|
if (kind === false) return "";
|
|
return window.AksrtModalTelemetry.start(kind || "generic");
|
|
}
|
|
|
|
function telemetryMark(session, event) {
|
|
if (!session || !session.telemetryId) return;
|
|
window.AksrtModalTelemetry.mark(session.telemetryId, event);
|
|
}
|
|
|
|
function setState(session, status, error) {
|
|
session.state.status = status;
|
|
session.state.error = error || null;
|
|
session.state.updatedAt = Date.now();
|
|
if (session.shell) session.shell.setAttribute("data-aksrt-modal-state", status);
|
|
if (typeof session.options.onState === "function") {
|
|
session.options.onState(status, session);
|
|
}
|
|
}
|
|
|
|
function focusable(shell) {
|
|
return shell.querySelectorAll("button:not([disabled]), [href], input:not([disabled]), select:not([disabled]), textarea:not([disabled]), [tabindex]:not([tabindex='-1'])");
|
|
}
|
|
|
|
function closeSelector() {
|
|
return "[data-aksrt-modal-close], .aksrt-modal-runtime__close";
|
|
}
|
|
|
|
function bindChrome(session) {
|
|
var shell = session.shell;
|
|
shell.addEventListener("click", function (event) {
|
|
var closeButton = event.target.closest(closeSelector());
|
|
if (closeButton) {
|
|
event.preventDefault();
|
|
close("control");
|
|
return;
|
|
}
|
|
if (event.target === shell || event.target.classList.contains("aksrt-modal-runtime__overlay")) {
|
|
close("overlay");
|
|
return;
|
|
}
|
|
var retry = event.target.closest("[data-aksrt-modal-retry]");
|
|
if (retry) {
|
|
event.preventDefault();
|
|
refresh();
|
|
}
|
|
});
|
|
|
|
shell.addEventListener("keydown", function (event) {
|
|
if (event.key === "Escape") {
|
|
event.preventDefault();
|
|
close("escape");
|
|
return;
|
|
}
|
|
if (event.key !== "Tab") return;
|
|
var nodes = focusable(shell);
|
|
if (!nodes.length) {
|
|
event.preventDefault();
|
|
shell.focus();
|
|
return;
|
|
}
|
|
var first = nodes[0];
|
|
var last = nodes[nodes.length - 1];
|
|
if (event.shiftKey && document.activeElement === first) {
|
|
event.preventDefault();
|
|
last.focus();
|
|
} else if (!event.shiftKey && document.activeElement === last) {
|
|
event.preventDefault();
|
|
first.focus();
|
|
}
|
|
});
|
|
}
|
|
|
|
function createSession(options) {
|
|
options = options || {};
|
|
var root = ensureRoot();
|
|
var shell = document.createElement("div");
|
|
var bottom = options.bottom === true || (options.mobileBottom !== false && isMobile());
|
|
var heightStyle = options.height ? "min-height:" + parseInt(options.height, 10) + "px;" : "";
|
|
var initialHtml = options.html !== undefined ? options.html : skeleton(options);
|
|
var titleId = "aksrt-modal-title-" + String(sequence + 1);
|
|
var titleHtml = options.title
|
|
? '<header class="aksrt-modal-runtime__header"><h3 class="aksrt-modal-runtime__title" id="' + titleId + '">' + escapeHtml(options.title) + '</h3><button type="button" class="aksrt-modal-runtime__close" data-aksrt-modal-close aria-label="关闭">×</button></header>'
|
|
: "";
|
|
|
|
shell.className =
|
|
"aksrt-modal-runtime" +
|
|
(bottom ? " aksrt-modal-runtime--bottom" : "") +
|
|
(options.className ? " " + options.className : "");
|
|
shell.setAttribute("role", "dialog");
|
|
shell.setAttribute("aria-modal", "true");
|
|
if (options.title) shell.setAttribute("aria-labelledby", titleId);
|
|
shell.setAttribute("tabindex", "-1");
|
|
shell.innerHTML =
|
|
'<div class="aksrt-modal-runtime__overlay" data-aksrt-modal-close></div>' +
|
|
'<div class="aksrt-modal-runtime__dialog" style="' + heightStyle + '">' +
|
|
titleHtml +
|
|
'<div class="aksrt-modal-runtime__content">' + initialHtml + "</div></div>";
|
|
|
|
var session = {
|
|
id: String(++sequence),
|
|
shell: shell,
|
|
content: shell.querySelector(".aksrt-modal-runtime__content"),
|
|
options: options,
|
|
state: window.AksrtModalState.create(options.kind || "generic"),
|
|
focusReturn: document.activeElement,
|
|
controller: null,
|
|
flight: null,
|
|
closed: false,
|
|
telemetryId: telemetryStart(options.telemetry === false ? false : options.kind),
|
|
};
|
|
|
|
root.appendChild(shell);
|
|
bindChrome(session);
|
|
active = session;
|
|
lockScroll(true);
|
|
void shell.offsetWidth;
|
|
shell.classList.add("is-open");
|
|
setState(session, options.html !== undefined ? "ready" : "loading");
|
|
telemetryMark(session, "shell");
|
|
|
|
var nodes = focusable(shell);
|
|
try {
|
|
(nodes.length ? nodes[0] : shell).focus();
|
|
} catch (error) {}
|
|
|
|
document.dispatchEvent(new CustomEvent("aksrt:modal:open", {
|
|
detail: { shell: shell, options: options, session: session },
|
|
}));
|
|
|
|
if (options.html !== undefined) {
|
|
rehydrate(session);
|
|
telemetryMark(session, "first-content");
|
|
telemetryMark(session, "ready");
|
|
if (typeof options.onContent === "function") options.onContent(options.html, session);
|
|
}
|
|
|
|
return session;
|
|
}
|
|
|
|
function rehydrate(session) {
|
|
if (!session || !session.content) return;
|
|
window.AksrtFrontend.rehydrate(session.content, "modal");
|
|
}
|
|
|
|
function abortSessionRequest(session) {
|
|
if (!session) return;
|
|
if (session.flight && typeof session.flight.release === "function") session.flight.release();
|
|
session.flight = null;
|
|
if (session.controller) {
|
|
try { session.controller.abort(); } catch (error) {}
|
|
}
|
|
session.controller = null;
|
|
}
|
|
|
|
function close(reason, preserveRequest) {
|
|
if (!active) return;
|
|
var session = active;
|
|
active = null;
|
|
session.closed = true;
|
|
if (!preserveRequest) abortSessionRequest(session);
|
|
session.shell.classList.remove("is-open");
|
|
if (!preserveRequest) lockScroll(false);
|
|
document.dispatchEvent(new CustomEvent("aksrt:modal:close", {
|
|
detail: { shell: session.shell, reason: reason || "close", session: session },
|
|
}));
|
|
|
|
var node = session.shell;
|
|
window.setTimeout(function () {
|
|
if (node && node.parentNode) node.parentNode.removeChild(node);
|
|
var target = session.focusReturn;
|
|
if (!preserveRequest && !active && target && target !== node && document.contains(target) && typeof target.focus === "function") {
|
|
try { target.focus(); } catch (error) {}
|
|
}
|
|
}, 220);
|
|
}
|
|
|
|
function responseData(result) {
|
|
if (!result) return null;
|
|
if (result.data !== undefined && result.data !== null) return result.data;
|
|
if (result.json && result.json.data !== undefined) return result.json.data;
|
|
return result.json;
|
|
}
|
|
|
|
function responseHtml(result) {
|
|
var data = responseData(result);
|
|
if (data && typeof data.html === "string") return data.html;
|
|
if (result && result.json && typeof result.json.html === "string") return result.json.html;
|
|
return result && typeof result.text === "string" ? result.text : "";
|
|
}
|
|
|
|
function errorMessage(error) {
|
|
if (error && error.code === "unauthorized") return "请先登录";
|
|
return error && error.message ? String(error.message) : "加载失败，请重试";
|
|
}
|
|
|
|
function renderError(session, error) {
|
|
if (!session || session.closed || active !== session) return;
|
|
var unauthorized = error && error.code === "unauthorized";
|
|
setState(session, unauthorized ? "unauthorized" : "error", error);
|
|
telemetryMark(session, unauthorized ? "unauthorized" : "error");
|
|
session.content.innerHTML =
|
|
'<div class="aksrt-modal-runtime__error touch border-title"><b>提示</b></div>' +
|
|
'<div class="aksrt-modal-runtime__error-body">' + escapeHtml(errorMessage(error)) +
|
|
'</div><div class="but-average modal-buts">' +
|
|
'<button type="button" class="but" data-aksrt-modal-retry>重试</button>' +
|
|
'<button type="button" class="but" data-aksrt-modal-close>关闭</button></div>';
|
|
rehydrate(session);
|
|
if (typeof session.options.onError === "function") session.options.onError(error, session);
|
|
}
|
|
|
|
function renderResult(session, result) {
|
|
if (!session || session.closed || active !== session) return;
|
|
|
|
if (session.options.responseType === "json" || typeof session.options.renderData === "function") {
|
|
var data = responseData(result);
|
|
if (data === null || data === undefined) {
|
|
setState(session, "empty");
|
|
telemetryMark(session, "first-content");
|
|
telemetryMark(session, "ready");
|
|
session.content.innerHTML = '<div class="aksrt-modal-runtime__error-body">暂无内容</div>';
|
|
return;
|
|
}
|
|
if (typeof session.options.renderData === "function") {
|
|
session.options.renderData(data, session, result);
|
|
}
|
|
setState(session, "ready");
|
|
telemetryMark(session, "first-content");
|
|
rehydrate(session);
|
|
telemetryMark(session, "ready");
|
|
if (typeof session.options.onData === "function") session.options.onData(data, session, result);
|
|
return;
|
|
}
|
|
|
|
var html = responseHtml(result);
|
|
if (!html) {
|
|
setState(session, "empty");
|
|
telemetryMark(session, "first-content");
|
|
telemetryMark(session, "ready");
|
|
session.content.innerHTML = '<div class="aksrt-modal-runtime__error-body">暂无内容</div>';
|
|
return;
|
|
}
|
|
session.content.innerHTML = html;
|
|
setState(session, "ready");
|
|
telemetryMark(session, "first-content");
|
|
rehydrate(session);
|
|
telemetryMark(session, "ready");
|
|
if (typeof session.options.onContent === "function") session.options.onContent(html, session);
|
|
}
|
|
|
|
function load(session, loadOptions) {
|
|
loadOptions = loadOptions || {};
|
|
if (!session || session.closed || !session.options.url) return Promise.resolve(session && session.shell);
|
|
abortSessionRequest(session);
|
|
setState(session, "loading");
|
|
session.content.innerHTML = skeleton(session.options);
|
|
session.controller = window.AbortController ? new window.AbortController() : null;
|
|
|
|
var requestOptions = {
|
|
method: session.options.method || "GET",
|
|
headers: session.options.headers || {},
|
|
body: session.options.body,
|
|
query: session.options.query,
|
|
signal: session.controller ? session.controller.signal : undefined,
|
|
};
|
|
if (requestOptions.body === undefined) delete requestOptions.body;
|
|
if (!requestOptions.signal) delete requestOptions.signal;
|
|
|
|
var request = function () {
|
|
return window.AksrtRequest.request(session.options.url, requestOptions);
|
|
};
|
|
|
|
var method = String(session.options.method || "GET").toUpperCase();
|
|
var cacheable = method === "GET" && session.options.cache !== false;
|
|
var cacheKey = session.options.cacheKey ||
|
|
method + ":" + window.AksrtRequest.url(session.options.url, session.options.query);
|
|
var cache = window.AksrtModalCache;
|
|
var acquireOptions = {
|
|
ttl: Number(session.options.cacheTtl || 15000),
|
|
tags: session.options.cacheTags || session.options.tags || [],
|
|
skipCache: !!loadOptions.force || !cacheable,
|
|
store: cacheable,
|
|
cancel: function () {
|
|
if (session.controller) {
|
|
try { session.controller.abort(); } catch (error) {}
|
|
}
|
|
},
|
|
};
|
|
|
|
var flight = cacheable
|
|
? cache.acquire(cacheKey, request, acquireOptions)
|
|
: { promise: request(), release: function () {} };
|
|
session.flight = flight;
|
|
|
|
return flight.promise.then(function (result) {
|
|
if (!session.closed && active === session) renderResult(session, result);
|
|
return session.shell;
|
|
}).catch(function (error) {
|
|
var aborted = error && (error.name === "AbortError" || error.code === "ABORT_ERR");
|
|
if (!aborted && !session.closed && active === session) renderError(session, error);
|
|
return session.shell;
|
|
}).then(function (shell) {
|
|
// A refresh/replacement may have installed a newer flight on this session.
|
|
// Only the owner of this promise may release and clear the slot.
|
|
if (session.flight === flight) {
|
|
if (flight && typeof flight.release === "function") flight.release();
|
|
session.flight = null;
|
|
}
|
|
return shell;
|
|
});
|
|
}
|
|
|
|
function open(options) {
|
|
options = options || {};
|
|
close("replace");
|
|
var session = createSession(options);
|
|
return session.shell;
|
|
}
|
|
|
|
function sessionKey(options) {
|
|
if (!options || !options.url) return "";
|
|
var method = String(options.method || "GET").toUpperCase();
|
|
var requestUrl = window.AksrtRequest.url(options.url, options.query);
|
|
return method + ":" + requestUrl;
|
|
}
|
|
|
|
function openRemote(options) {
|
|
options = Object.assign({}, options || {});
|
|
if (!options.url) return Promise.reject(new Error("missing url"));
|
|
var sameRequest = active && active.flight && sessionKey(active.options) === sessionKey(options);
|
|
close("replace", !!sameRequest);
|
|
var session = createSession(options);
|
|
return load(session).then(function () { return session.shell; });
|
|
}
|
|
|
|
function refresh(options) {
|
|
if (!active || !active.options.url) return Promise.resolve(null);
|
|
if (options && typeof options === "object") active.options = Object.assign({}, active.options, options);
|
|
return load(active, { force: true });
|
|
}
|
|
|
|
function registerLoader(kind, loader) {
|
|
if (!kind || typeof loader !== "function") return;
|
|
loaders[String(kind)] = loader;
|
|
}
|
|
|
|
function openLoader(kind, context) {
|
|
var loader = loaders[String(kind)];
|
|
if (!loader) return Promise.reject(new Error("missing modal loader: " + kind));
|
|
return openRemote(loader(context || {}));
|
|
}
|
|
|
|
function invalidate(tags) {
|
|
return window.AksrtModalCache.invalidate(tags);
|
|
}
|
|
|
|
window.AksrtModalRuntime = {
|
|
open: open,
|
|
openRemote: openRemote,
|
|
close: close,
|
|
refresh: refresh,
|
|
registerLoader: registerLoader,
|
|
openLoader: openLoader,
|
|
invalidate: invalidate,
|
|
getActive: function () { return active ? active.shell : null; },
|
|
getState: function () { return active ? active.state : null; },
|
|
};
|
|
|
|
document.dispatchEvent(new CustomEvent("aksrt:modal-runtime:ready"));
|
|
})(window, document);
|