153 lines
3.3 KiB
TypeScript
153 lines
3.3 KiB
TypeScript
/* Copyright: Ankitects Pty Ltd and contributors
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* License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html */
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var ankiPlatform = "desktop";
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var typeans;
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var _updatingQA = false;
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var qFade = 50;
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var aFade = 0;
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var onUpdateHook;
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var onShownHook;
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function _runHook(arr: () => Promise<any>[]): Promise<any[]> {
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var promises = [];
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for (var i = 0; i < arr.length; i++) {
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promises.push(arr[i]());
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}
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return Promise.all(promises);
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}
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async function _updateQA(html, fadeTime, onupdate, onshown) {
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// if a request to update q/a comes in before the previous content
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// has been loaded, wait a while and try again
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if (_updatingQA) {
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setTimeout(function () {
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_updateQA(html, fadeTime, onupdate, onshown);
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}, 50);
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return;
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}
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_updatingQA = true;
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onUpdateHook = [onupdate];
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onShownHook = [onshown];
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var qa = $("#qa");
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// fade out current text
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await qa.fadeTo(fadeTime, 0).promise();
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// update text
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try {
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qa.html(html);
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} catch (err) {
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qa.html(
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(
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`Invalid HTML on card: ${String(err).substring(0, 2000)}\n` +
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String(err.stack).substring(0, 2000)
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).replace(/\n/g, "<br />")
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);
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};
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await _runHook(onUpdateHook);
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// @ts-ignore wait for mathjax to ready
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await MathJax.startup.promise.then(() => {
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// @ts-ignore clear MathJax buffer
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MathJax.typesetClear();
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// @ts-ignore typeset
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return MathJax.typesetPromise(qa.slice(0, 1));
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});
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// and reveal when processing is done
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await qa.fadeTo(fadeTime, 1).promise();
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await _runHook(onShownHook);
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_updatingQA = false;
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}
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function _showQuestion(q, bodyclass) {
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_updateQA(
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q,
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qFade,
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function () {
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// return to top of window
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window.scrollTo(0, 0);
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document.body.className = bodyclass;
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},
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function () {
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// focus typing area if visible
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typeans = document.getElementById("typeans");
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if (typeans) {
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typeans.focus();
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}
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}
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);
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}
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function _showAnswer(a, bodyclass) {
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_updateQA(
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a,
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aFade,
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function () {
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if (bodyclass) {
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// when previewing
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document.body.className = bodyclass;
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}
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// scroll to answer?
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var e = $("#answer");
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if (e[0]) {
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e[0].scrollIntoView();
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}
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},
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function () {}
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);
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}
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const _flagColours = {
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1: "#ff6666",
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2: "#ff9900",
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3: "#77ff77",
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4: "#77aaff",
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};
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function _drawFlag(flag) {
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var elem = $("#_flag");
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if (flag === 0) {
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elem.hide();
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return;
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}
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elem.show();
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elem.css("color", _flagColours[flag]);
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}
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function _drawMark(mark) {
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var elem = $("#_mark");
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if (!mark) {
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elem.hide();
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} else {
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elem.show();
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}
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}
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function _typeAnsPress() {
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if ((window.event as KeyboardEvent).keyCode === 13) {
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pycmd("ans");
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}
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}
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function _emulateMobile(enabled: boolean) {
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const list = document.documentElement.classList;
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if (enabled) {
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list.add("mobile");
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} else {
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list.remove("mobile");
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}
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}
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