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fc2

Created 22 days agoDiff never expires

16 removals

552 lines

15 additions

552 lines

var config = {

prompt: '[...]', // Prompt when no hint

hint: '[%h]', // %h is replaced with hint text

expose: {

char: '!', // Char to mark exposed cloze

pos: 'begin', // Char pos: `pre`, `begin`, `end` or `post`

reverse: '{{Invert cloze hiding}}'.toString() // If true exposed clozes are hidden, others shown

scroll: { // Valid values: `none`, `min`, `center`, `context`, `context-top` or `context-bottom`

initial: 'center', // Scoll on initial show

click: 'min', // Scroll on cloze click

iterate: 'min' // Scroll on iteration

iteration: {

top: false, // Always start iteration from top

loop: true, // Restart from top/bottom from end

hide: false // Hide cloze iterated away from

shortcuts: {

next: 'j', // Iterate to next cloze

previous: 'h', // Iterate to previous cloze

toggle_all: 'k' // Toggle all clozes and fields

show: { // `false` means initially collapsed/hidden

inactive: false, // Inactive clozes

additional: false // Additional fields (Note, Mnemonics etc.)

additional: true // Additional fields (Note, Mnemonics etc.)

fields: {

title: true, // Title area

legends: [ ],

show_all_button: true, // Optional "show all" button at bottom of page

log: false // Debug information level (`false`, `'error'` or `true`)

}

</script>

{{#Title}}<div id="fc2-title">{{Title}}</div>{{/Title}}

<div id="fc2-content" class="linkRender">{{cloze:Text}}<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br></div>

<div id="fc2-content" class="linkRender">{{cloze:Text}}</div>

<div id="fc2-content-placeholder">This note type requires <code>nested cloze support</code> and <code>increased meta data</code> features from the Anki 2.1.56+ backend (Anki desktop 2.1.56+, AnkiDroid 2.16alpha93+ with `Use new backend` enabled and AnkiMobile 2.0.88+).</div>

<div id="fc2-extra-content" class="fc2-additional-content">{{Extra}}</div>

<gr><br>Source: {{Source}} </gr>

<p class=footer>{{clickable:Tags}}</p>

</div>

<div id="fc2-meta-subdeck">{{Subdeck}}</div>

<div id="fc2-meta-flag">{{CardFlag}}</div>

var fc2

(function () {

'use strict';

function logger(element, lvl) {

let log = ((_) => { });

if (lvl && element) {

if (lvl === true) {

log = ((str, args) => {

if (log.element.hidden)

log.element.hidden = false;

let msg = str;

if (typeof (args) === 'object') {

for (let i = 0; i < args.length; i++) {

msg += i ? ', ' : ': ';

if (typeof (args[i]) == 'object')

msg += JSON.stringify(args[i]);

else if (typeof (args[i]) == 'string')

msg += `"${args[i]}"`;

else

msg += args[i];

}

else if (args)

msg += `: ${args}`;

log.element.innerText += `${msg}\n`;

log.element.scrollTop = log.element.scrollHeight;

});

}

window.onerror = (emsg, _src, _ln, _col, err) => {

if (log.element.hidden)

log.element.hidden = false;

log.element.innerText += `error ${emsg}:\n${err.stack}\n`;

log.element.scrollTop = log.element.scrollHeight;

return true;

};

log.element = element;

log.element.hidden = true;

}

return log;

}

class Searcher {

constructor(element, prefix, logger = (() => { })) {

logger('searcher.constructor()');

this.element = element, this.log = logger;

this.matches = [], this.index = -1, this.sstr = '';

this.class_ = {

match: prefix + 'search-match',

matches: prefix + 'search-matches'

};

const panel = document.createElement('div');

panel.id = `${prefix}search-panel`;

panel.hidden = true;

panel.innerHTML = `<input type="text" id="${prefix}search-field" placeholder="Search for text"/><div id="${prefix}search-btn" tabindex="0">Search</div>`;

this.panel = element.parentElement.insertBefore(panel, this.element.nextElementSibling);

this.field = document.getElementById(`${prefix}search-field`);

this.field.addEventListener('keydown', (evt) => {

if (evt.key === 'Enter') {

this.search();

this.button.focus();

if (!document.documentElement.classList.contains('mobile'))

this.field.focus();

}

else if (evt.key === 'Escape')

return;

evt.stopPropagation();

});

this.button = document.getElementById(`${prefix}search-btn`);

this.button.onclick = (evt) => { this.search(); };

this.field.onfocus = (evt) => { this.field.select(); };

}

search() {

this.log('searcher.search');

if (!this.field?.value) {

this.clear();

return;

}

if (this.field.value !== this.sstr) {

this.clear();

this.sstr = this.field.value;

this.highlight(RegExp(this.sstr.replace(/[.*+?^${}()|[\]\\]/g, "\\/*--###JS###--*/"), 'gi'));

}

if (this.matches?.length) {

if (this.index >= 0)

this.matches[this.index].classList.replace(this.class_.match, this.class_.matches);

this.index = this.index < this.matches.length - 1

? this.index + 1

: 0;

this.matches[this.index].classList.replace(this.class_.matches, this.class_.match);

this.matches[this.index].scrollIntoView({ behavior: 'auto', block: 'center', inline: 'nearest' });

}

highlight(re) {

this.log('searcher.highlight');

const txt = this.element.textContent;

const rct = this.element.getBoundingClientRect();

const stl = getComputedStyle(this.element);

const offset = {

top: this.element.scrollTop - rct.top - parseFloat(stl.marginTop),

left: this.element.scrollLeft - rct.left - parseFloat(stl.marginLeft)

};

const sel = window.getSelection();

sel.removeAllRanges();

let match, sstr = this.field.value;

while (match = re.exec(txt)) {

const itr = nd_itr(this.element);

let index = 0;

let res = itr.next();

while (!res.done) {

let rng;

if (match.index >= index && match.index < index + res.value.length) {

rng = new Range();

rng.setStart(res.value, match.index - index);

}

if (match.index + sstr.length >= index &&

match.index + sstr.length <= index + res.value.length &&

rng) {

rng.setEnd(res.value, match.index + sstr.length - index);

sel.addRange(rng);

for (const rect of rng.getClientRects()) {

const light = document.createElement('DIV');

this.element.appendChild(light);

light.classList.add(this.class_.matches);

light.style.top = rect.y + offset.top + 'px';

light.style.left = rect.x + offset.left + 'px';

light.style.height = rect.height + 'px';

light.style.width = rect.width + 'px';

this.matches.push(light);

}

index += res.value.length;

res = itr.next();

}

sel.removeAllRanges();

function* nd_itr(nd) {

for (const cnd of nd.childNodes) {

if (cnd.nodeType === Node.TEXT_NODE)

yield cnd;

else

yield* nd_itr(cnd);

}

clear() {

this.log('searcher.clear');

for (const el of this.matches)

el.remove();

this.index = -1, this.sstr = '', this.matches = [];

}

focus() {

this.log('searcher.focus');

this.hidden = false;

this.field.focus();

}

get hidden() { return this.panel.hidden; }

set hidden(hide) { if (this.panel.hidden = hide)

this.clear(); }

}

function ancestor(descendant, selector) {

while (descendant && !descendant.matches(selector))

descendant = descendant.parentElement;

return descendant;

}

class FC2 {

constructor() {

this.listeners = false;

}

load(config, side) {

this.viewport = document.getElementById('fc2-viewport');

let elm = document.getElementById('fc2-log-panel');

if (!elm && config.fields?.log) {

elm = document.createElement('pre');

elm.id = 'fc2-log-panel';

elm.hidden = true;

elm = this.viewport.parentElement.appendChild(elm);

}

this.log = logger(elm, config.fields?.log);

this.cfg = config;

this.cfg.front = side === 'front';

this.content = document.getElementById('fc2-content');

this.current = this.content.querySelector('.cloze');

if (this.current.dataset.ordinal === undefined)

return;

this.search = new Searcher(this.viewport, 'fc2-', this.log);

this.ordinal || (this.ordinal = parseInt(this.current.dataset.ordinal));

this.content.parentElement.classList.remove(this.cfg.front ? 'back' : 'front');

this.content.parentElement.classList.add(this.cfg.front ? 'front' : 'back');

const tags = document.getElementById('fc2-meta-tags').innerText.split(' ');

for (const tag of tags) {

if (!tag.startsWith('fc2.'))

continue;

const parts = tag.slice(4).split('.');

const tag_side = ['front', 'back'].includes(parts[0]) ? parts.shift() : undefined;

if (tag_side && tag_side !== side || this.cfg[parts[0]]?.[parts[1]] === undefined)

continue;

this.cfg[parts[0]][parts[1]] = typeof (this.cfg[parts[0]][parts[1]]) === 'boolean'

? parts[2] === 'true'

: parts.slice(2);

}

let title = document.getElementById('fc2-title');

if (!title && this.cfg.fields?.title) {

let titles;

const h1 = this.content.querySelector('h1');

if (h1) {

titles = h1.innerText;

h1.remove();

}

else

titles = document.getElementById('fc2-meta-subdeck')?.innerText;

if (titles) {

title = document.createElement('div');

title.id = 'fc2-title';

title.innerText = titles;

this.viewport.insertAdjacentElement('beforebegin', title);

}

const expose = this.generate_expose();

let active_seen = false;

this.content.querySelectorAll('.cloze-inactive, .cloze').forEach(((cloze) => {

const active = cloze.classList.contains('cloze');

active_seen || (active_seen = active);

const exposed = expose(cloze);

if (!active && (exposed || cloze.querySelector('.cloze'))) {

cloze.classList.remove('cloze-inactive');

return;

}

cloze.dataset.hint = this.cfg.front && active && cloze.innerHTML !== '[...]'

? this.cfg.hint.replace('%h', cloze.innerHTML.slice(1, cloze.innerHTML.length - 1)) || ""

: this.cfg.prompt;

if (active && this.cfg.front ||

!active && (!this.cfg.show.inactive ||

this.cfg.show.inactive === 'preceding' && active_seen))

this.hide(cloze);

}));

if (!this.cfg.show.additional)

this.viewport.querySelectorAll('.fc2-additional-content')

.forEach(nd => nd.hidden = true);

if (this.cfg.fields?.legends?.length) {

const footer = document.createElement('div');

footer.id = 'fc2-footer';

this.viewport.insertAdjacentElement('afterend', footer);

for (const legend of this.cfg.fields.legends) {

const row = document.createElement('div');

row.className = 'fc2-legends';

footer.appendChild(row);

for (const itm of legend) {

let cell = document.createElement('div');

cell.innerHTML = itm;

cell = cell.firstElementChild;

if (!cell)

continue;

cell.className = 'fc2-legend';

row.appendChild(cell);

}

if (this.cfg.fields?.show_all_button) {

const btn = document.createElement('button');

btn.id = "fc2-show-all-btn";

btn.innerText = "Show all";

this.viewport.insertAdjacentElement('afterend', btn);

}

if (this.cfg.front)

this.viewport.onscroll = (_evt) => sessionStorage.setItem('fc2_scroll_top', this.viewport.scrollTop.toString());

if (!this.listeners) {

document.addEventListener("click", this.mouse.bind(this));

document.addEventListener("keydown", this.keyboard.bind(this));

this.listeners = true;

}

this.content.style.display = 'block';

document.getElementById('fc2-content-placeholder').remove();

window.requestAnimationFrame(() => this.scroll_to({ scroll: this.cfg.scroll.initial }));

}

generate_expose() {

this.log('generate_expose');

let expose_;

if (this.cfg.expose.pos === 'pre') {

expose_ = (el) => {

if (el.previousSibling?.data?.endsWith(this.cfg.expose.char)) {

el.previousSibling.data = el.previousSibling.data.slice(0, -1);

return true;

}

return false;

};

}

else if (this.cfg.expose.pos === 'post') {

expose_ = (el) => {

if (el.nextSibling?.data?.startsWith(this.cfg.expose.char)) {

el.nextSibling.data = el.nextSibling.data.substring(1);

return true;

}

return false;

};

}

else if (this.cfg.expose.pos === 'end') {

expose_ = (el) => {

if (el.dataset.cloze?.endsWith(this.cfg.expose.char)) {

el.dataset.cloze = el.dataset.cloze.slice(0, -1);

return true;

}

else if (el.lastChild?.data?.endsWith(this.cfg.expose.char)) {

el.lastChild.data = el.lastChild.data.slice(0, -1);

return true;

}

return false;

};

}

else {

expose_ = (el) => {

if (el.dataset.cloze?.startsWith(this.cfg.expose.char)) {

el.dataset.cloze = el.dataset.cloze.substring(1);

return true;

}

else if (el.firstChild?.data?.startsWith(this.cfg.expose.char)) {

el.firstChild.data = el.firstChild.data.substring(1);

return true;

}

return false;

};

}

return this.cfg.expose.reverse ? (el) => { return !expose_(el); } : expose_;

}

show(el) {

this.log('show', el.tagName);

if (!el?.classList.contains('hide'))

return;

el.classList.remove('hide');

el.innerHTML = el.dataset.cloze;

for (const child of el.querySelectorAll(':scope .cloze, :scope .cloze-inactive')) {

if (child.dataset.hint === undefined)

child.dataset.hint = '';

this.hide(child);

}

hide(el) {

this.log('hide');

if (el?.classList.contains('hide'))

return;

el.classList.add('hide');

if (!this.search.hidden)

this.search.hidden = true;

if (el.dataset.cloze === undefined)

el.dataset.cloze = el.innerHTML;

el.innerHTML = el.dataset.hint;

}

iter(fwd) {

this.log('iter');

const els = this.content.querySelectorAll('.cloze');

let nxt;

if (this.current?.classList.contains('hide'))

nxt = this.current;

if (fwd && this.current === els[els.length - 1])

nxt = this.cfg.iteration.loop ? els[0] : this.current;

else if (!fwd && this.current === els[0])

nxt = this.cfg.iteration.loop ? els[els.length - 1] : this.current;

for (let i = 0; !nxt && i < els.length; i++) {

if (els[i] === this.current)

nxt = els[i + (fwd ? 1 : -1)];

}

if (nxt !== this.current && this.cfg.iteration.hide)

this.hide(this.current);

this.show(this.current = nxt);

this.scroll_to({ scroll: this.cfg.scroll.iterate, cloze: this.current });

}

toggle_cloze(cloze) {

this.log('toggle_cloze');

const show = cloze.classList.contains('hide');

if (show)

this.show(cloze);

else

this.hide(cloze);

return show;

}

toggle_field(field) {

this.log('toggle_field');

const fld = ancestor(field, '.fc2-additional-content') ||

ancestor(field, '.fc2-additional-header').nextElementSibling;

if (fld)

fld.hidden = !fld.hidden;

}

toggle_all(show = undefined) {

this.log('toggle_all');

if (show === true || this.search.hidden ||

show === undefined &&

this.content.querySelector('.cloze.hide, .cloze-inactive.hide, .fc2-additional-content[hidden]')) {

this.content.querySelectorAll('.cloze.hide, .cloze-inactive.hide')

.forEach(el => { this.show(el); });

this.viewport.querySelectorAll('.fc2-additional-content[hidden]')

.forEach(el => { el.hidden = false; });

this.search.hidden = false;

return true;

}

else {

this.content.querySelectorAll('.cloze:not(.hide), .cloze-inactive:not(.hide)')

.forEach(el => { this.hide(el); });

this.viewport.querySelectorAll('.fc2-additional-content:not([hidden])')

.forEach(el => { el.hidden = true; });

this.search.hidden = true;

return false;

}

scroll_to(opts) {

this.log('scroll_to');

if (!this.cfg.front) {

const scroll_top = parseFloat(sessionStorage.getItem('fc2_scroll_top'));

if (!isNaN(scroll_top)) {

sessionStorage.removeItem('fc2_scroll_top');

this.viewport.scrollTop = scroll_top;

}

if (opts.scroll === 'none')

return;

let first, last;

if (opts.cloze)

first = last = opts.cloze;

else {

const active = this.content.querySelectorAll('.cloze');

first = active[0];

last = active[active.length - 1];

}

const offset = this.viewport.getBoundingClientRect().top;

const line_height = (style) => {

this.log(' line_height');

return parseInt(style.height) + parseInt(style.marginTop) + parseInt(style.marginBottom)

|| parseInt(style.lineHeight)

|| 20;

};

const vp_height = this.viewport.clientHeight;

const cloze_top = (first.getBoundingClientRect().top - offset) - line_height(window.getComputedStyle(first?.previousElementSibling || first, ':before')) + 3;

let top;

const bottom = (last.getBoundingClientRect().bottom - offset) + line_height(window.getComputedStyle(last?.nextElementSibling || last, ':after')) + 3;

let y = 0;

if (opts.scroll?.slice(0, 7) === 'context') {

top = 0;

let section, section_seen, cloze_seen;

const sections = this.content.querySelectorAll('hr, h1, h2, h3, h4, h5, h6, .cloze');

for (let i = 0; i < sections.length; i++) {

cloze_seen || (cloze_seen = sections[i].tagName === 'SPAN');

section_seen || (section_seen = sections[i].tagName !== 'SPAN');

if (!cloze_seen)

section = sections[i];

if (cloze_seen && (section || section_seen))

break;

}

if (section) {

top = section.tagName === 'HR'

? (section.getBoundingClientRect().bottom - offset)

: (section.getBoundingClientRect().top - offset) - 5;

}

else if (!section_seen) {

const all = this.content.querySelectorAll('.cloze, .cloze-inactive');

for (let i = 1; i < all.length; i++) {

if (all[i] === this.current) {

top = (all[i - 1].getBoundingClientRect().top - offset) - 5;

break;

}

else

top = cloze_top;

if (['center', 'context', 'context-bottom'].includes(opts.scroll)) {

if (bottom - top <= vp_height)

opts.scroll === 'context-bottom'

? y = bottom - vp_height

: y = top + (bottom - top) / 2 - vp_height / 2;

else if (this.cfg.front)

y = top;

else

y = bottom - cloze_top <= vp_height

? bottom - vp_height

: cloze_top;

}

else {

if (cloze_top < 0 || bottom - top >= vp_height)

y = cloze_top;

else if (bot

已保存差異

原始文本

Open file

<script type="application/javascript">
var config = {
    prompt: '[...]',             // Prompt when no hint
    hint: '[%h]',               // %h is replaced with hint text
    expose: {
        char: '!',              // Char to mark exposed cloze
        pos: 'begin',           // Char pos: `pre`, `begin`, `end` or `post`
        reverse: '{{Invert cloze hiding}}'.toString()     // If true exposed clozes are hidden, others shown
    },
    scroll: {                   // Valid values: `none`, `min`, `center`, `context`, `context-top` or `context-bottom`
        initial: 'center',     // Scoll on initial show
        click: 'min',           // Scroll on cloze click
        iterate: 'min'          // Scroll on iteration
    },
    iteration: {
        top: false,             // Always start iteration from top
        loop: true,             // Restart from top/bottom from end
        hide: false              // Hide cloze iterated away from
    },
    shortcuts: {
        next: 'j',              // Iterate to next cloze
        previous: 'h',          // Iterate to previous cloze
        toggle_all: 'k'         // Toggle all clozes and fields
    },
    show: {                     // `false` means initially collapsed/hidden
        inactive: false,        // Inactive clozes
        additional: false       // Additional fields (Note, Mnemonics etc.)
    },
    fields: {
        title: true,                // Title area
        legends: [ ],
        show_all_button: true, // Optional "show all" button at bottom of page
        log: false            // Debug information level (`false`, `'error'` or `true`)
    }
}
</script>

{{#Title}}<div id="fc2-title">{{Title}}</div>{{/Title}}

<div id="fc2-viewport">
    
    <div id="fc2-content" class="linkRender">{{cloze:Text}}<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br></div>
    <div id="fc2-content-placeholder">This note type requires <code>nested cloze support</code> and <code>increased meta data</code> features from the Anki 2.1.56+ backend (Anki desktop 2.1.56+, AnkiDroid 2.16alpha93+ with `Use new backend` enabled and AnkiMobile 2.0.88+).</div>

</div>

<div id="fc2-nav-toggle-all"></div>
<div id="fc2-nav-prev-cloze"></div>
<div id="fc2-nav-next-cloze"></div>

<div id="fc2-meta-type">{{Type}}</div>
<div id="fc2-meta-card">{{Card}}</div>
<div id="fc2-meta-tags">{{Tags}}</div>
<div id="fc2-meta-deck">{{Deck}}</div>
<div id="fc2-meta-subdeck">{{Subdeck}}</div>
<div id="fc2-meta-flag">{{CardFlag}}</div>
<script type="application/javascript">
var fc2
(function () {
    'use strict';

class Searcher {
        constructor(element, prefix, logger = (() => { })) {
            logger('searcher.constructor()');
            this.element = element, this.log = logger;
            this.matches = [], this.index = -1, this.sstr = '';
            this.class_ = {
                match: prefix + 'search-match',
                matches: prefix + 'search-matches'
            };
            const panel = document.createElement('div');
            panel.id = `${prefix}search-panel`;
            panel.hidden = true;
            panel.innerHTML = `<input type="text" id="${prefix}search-field" placeholder="Search for text"/><div id="${prefix}search-btn" tabindex="0">Search</div>`;
            this.panel = element.parentElement.insertBefore(panel, this.element.nextElementSibling);
            this.field = document.getElementById(`${prefix}search-field`);
            this.field.addEventListener('keydown', (evt) => {
                if (evt.key === 'Enter') {
                    this.search();
                    this.button.focus();
                    if (!document.documentElement.classList.contains('mobile'))
                        this.field.focus();
                }
                else if (evt.key === 'Escape')
                    return;
                evt.stopPropagation();
            });
            this.button = document.getElementById(`${prefix}search-btn`);
            this.button.onclick = (evt) => { this.search(); };
            this.field.onfocus = (evt) => { this.field.select(); };
        }
        search() {
            this.log('searcher.search');
            if (!this.field?.value) {
                this.clear();
                return;
            }
            if (this.field.value !== this.sstr) {
                this.clear();
                this.sstr = this.field.value;
                this.highlight(RegExp(this.sstr.replace(/[.*+?^${}()|[\]\\]/g, "\\/*--###JS###--*/"), 'gi'));
            }
            if (this.matches?.length) {
                if (this.index >= 0)
                    this.matches[this.index].classList.replace(this.class_.match, this.class_.matches);
                this.index = this.index < this.matches.length - 1
                    ? this.index + 1
                    : 0;
                this.matches[this.index].classList.replace(this.class_.matches, this.class_.match);
                this.matches[this.index].scrollIntoView({ behavior: 'auto', block: 'center', inline: 'nearest' });
            }
        }
        highlight(re) {
            this.log('searcher.highlight');
            const txt = this.element.textContent;
            const rct = this.element.getBoundingClientRect();
            const stl = getComputedStyle(this.element);
            const offset = {
                top: this.element.scrollTop - rct.top - parseFloat(stl.marginTop),
                left: this.element.scrollLeft - rct.left - parseFloat(stl.marginLeft)
            };
            const sel = window.getSelection();
            sel.removeAllRanges();
            let match, sstr = this.field.value;
            while (match = re.exec(txt)) {
                const itr = nd_itr(this.element);
                let index = 0;
                let res = itr.next();
                while (!res.done) {
                    let rng;
                    if (match.index >= index && match.index < index + res.value.length) {
                        rng = new Range();
                        rng.setStart(res.value, match.index - index);
                    }
                    if (match.index + sstr.length >= index &&
                        match.index + sstr.length <= index + res.value.length &&
                        rng) {
                        rng.setEnd(res.value, match.index + sstr.length - index);
                        sel.addRange(rng);
                        for (const rect of rng.getClientRects()) {
                            const light = document.createElement('DIV');
                            this.element.appendChild(light);
                            light.classList.add(this.class_.matches);
                            light.style.top = rect.y + offset.top + 'px';
                            light.style.left = rect.x + offset.left + 'px';
                            light.style.height = rect.height + 'px';
                            light.style.width = rect.width + 'px';
                            this.matches.push(light);
                        }
                    }
                    index += res.value.length;
                    res = itr.next();
                }
            }
            sel.removeAllRanges();
            function* nd_itr(nd) {
                for (const cnd of nd.childNodes) {
                    if (cnd.nodeType === Node.TEXT_NODE)
                        yield cnd;
                    else
                        yield* nd_itr(cnd);
                }
            }
        }
        clear() {
            this.log('searcher.clear');
            for (const el of this.matches)
                el.remove();
            this.index = -1, this.sstr = '', this.matches = [];
        }
        focus() {
            this.log('searcher.focus');
            this.hidden = false;
            this.field.focus();
        }
        get hidden() { return this.panel.hidden; }
        set hidden(hide) { if (this.panel.hidden = hide)
            this.clear(); }
    }

function ancestor(descendant, selector) {
        while (descendant && !descendant.matches(selector))
            descendant = descendant.parentElement;
        return descendant;
    }

class FC2 {
        constructor() {
            this.listeners = false;
        }
        load(config, side) {
            this.viewport = document.getElementById('fc2-viewport');
            let elm = document.getElementById('fc2-log-panel');
            if (!elm && config.fields?.log) {
                elm = document.createElement('pre');
                elm.id = 'fc2-log-panel';
                elm.hidden = true;
                elm = this.viewport.parentElement.appendChild(elm);
            }
            this.log = logger(elm, config.fields?.log);
            this.cfg = config;
            this.cfg.front = side === 'front';
            this.content = document.getElementById('fc2-content');
            this.current = this.content.querySelector('.cloze');
            if (this.current.dataset.ordinal === undefined)
                return;
            this.search = new Searcher(this.viewport, 'fc2-', this.log);
            this.ordinal || (this.ordinal = parseInt(this.current.dataset.ordinal));
            this.content.parentElement.classList.remove(this.cfg.front ? 'back' : 'front');
            this.content.parentElement.classList.add(this.cfg.front ? 'front' : 'back');
            const tags = document.getElementById('fc2-meta-tags').innerText.split(' ');
            for (const tag of tags) {
                if (!tag.startsWith('fc2.'))
                    continue;
                const parts = tag.slice(4).split('.');
                const tag_side = ['front', 'back'].includes(parts[0]) ? parts.shift() : undefined;
                if (tag_side && tag_side !== side || this.cfg[parts[0]]?.[parts[1]] === undefined)
                    continue;
                this.cfg[parts[0]][parts[1]] = typeof (this.cfg[parts[0]][parts[1]]) === 'boolean'
                    ? parts[2] === 'true'
                    : parts.slice(2);
            }
            let title = document.getElementById('fc2-title');
            if (!title && this.cfg.fields?.title) {
                let titles;
                const h1 = this.content.querySelector('h1');
                if (h1) {
                    titles = h1.innerText;
                    h1.remove();
                }
                else
                    titles = document.getElementById('fc2-meta-subdeck')?.innerText;
                if (titles) {
                    title = document.createElement('div');
                    title.id = 'fc2-title';
                    title.innerText = titles;
                    this.viewport.insertAdjacentElement('beforebegin', title);
                }
            }
            const expose = this.generate_expose();
            let active_seen = false;
            this.content.querySelectorAll('.cloze-inactive, .cloze').forEach(((cloze) => {
                const active = cloze.classList.contains('cloze');
                active_seen || (active_seen = active);
                const exposed = expose(cloze);
                if (!active && (exposed || cloze.querySelector('.cloze'))) {
                    cloze.classList.remove('cloze-inactive');
                    return;
                }
                cloze.dataset.hint = this.cfg.front && active && cloze.innerHTML !== '[...]'
                    ? this.cfg.hint.replace('%h', cloze.innerHTML.slice(1, cloze.innerHTML.length - 1)) || ""
                    : this.cfg.prompt;
                if (active && this.cfg.front ||
                    !active && (!this.cfg.show.inactive ||
                        this.cfg.show.inactive === 'preceding' && active_seen))
                    this.hide(cloze);
            }));
            if (!this.cfg.show.additional)
                this.viewport.querySelectorAll('.fc2-additional-content')
                    .forEach(nd => nd.hidden = true);
            if (this.cfg.fields?.legends?.length) {
                const footer = document.createElement('div');
                footer.id = 'fc2-footer';
                this.viewport.insertAdjacentElement('afterend', footer);
                for (const legend of this.cfg.fields.legends) {
                    const row = document.createElement('div');
                    row.className = 'fc2-legends';
                    footer.appendChild(row);
                    for (const itm of legend) {
                        let cell = document.createElement('div');
                        cell.innerHTML = itm;
                        cell = cell.firstElementChild;
                        if (!cell)
                            continue;
                        cell.className = 'fc2-legend';
                        row.appendChild(cell);
                    }
                }
            }
            if (this.cfg.fields?.show_all_button) {
                const btn = document.createElement('button');
                btn.id = "fc2-show-all-btn";
                btn.innerText = "Show all";
                this.viewport.insertAdjacentElement('afterend', btn);
            }
            if (this.cfg.front)
                this.viewport.onscroll = (_evt) => sessionStorage.setItem('fc2_scroll_top', this.viewport.scrollTop.toString());
            if (!this.listeners) {
                document.addEventListener("click", this.mouse.bind(this));
                document.addEventListener("keydown", this.keyboard.bind(this));
                this.listeners = true;
            }
            this.content.style.display = 'block';
            document.getElementById('fc2-content-placeholder').remove();
            window.requestAnimationFrame(() => this.scroll_to({ scroll: this.cfg.scroll.initial }));
        }
        generate_expose() {
            this.log('generate_expose');
            let expose_;
            if (this.cfg.expose.pos === 'pre') {
                expose_ = (el) => {
                    if (el.previousSibling?.data?.endsWith(this.cfg.expose.char)) {
                        el.previousSibling.data = el.previousSibling.data.slice(0, -1);
                        return true;
                    }
                    return false;
                };
            }
            else if (this.cfg.expose.pos === 'post') {
                expose_ = (el) => {
                    if (el.nextSibling?.data?.startsWith(this.cfg.expose.char)) {
                        el.nextSibling.data = el.nextSibling.data.substring(1);
                        return true;
                    }
                    return false;
                };
            }
            else if (this.cfg.expose.pos === 'end') {
                expose_ = (el) => {
                    if (el.dataset.cloze?.endsWith(this.cfg.expose.char)) {
                        el.dataset.cloze = el.dataset.cloze.slice(0, -1);
                        return true;
                    }
                    else if (el.lastChild?.data?.endsWith(this.cfg.expose.char)) {
                        el.lastChild.data = el.lastChild.data.slice(0, -1);
                        return true;
                    }
                    return false;
                };
            }
            else {
                expose_ = (el) => {
                    if (el.dataset.cloze?.startsWith(this.cfg.expose.char)) {
                        el.dataset.cloze = el.dataset.cloze.substring(1);
                        return true;
                    }
                    else if (el.firstChild?.data?.startsWith(this.cfg.expose.char)) {
                        el.firstChild.data = el.firstChild.data.substring(1);
                        return true;
                    }
                    return false;
                };
            }
            return this.cfg.expose.reverse ? (el) => { return !expose_(el); } : expose_;
        }
        show(el) {
            this.log('show', el.tagName);
            if (!el?.classList.contains('hide'))
                return;
            el.classList.remove('hide');
            el.innerHTML = el.dataset.cloze;
            for (const child of el.querySelectorAll(':scope .cloze, :scope .cloze-inactive')) {
                if (child.dataset.hint === undefined)
                    child.dataset.hint = '';
                this.hide(child);
            }
        }
        hide(el) {
            this.log('hide');
            if (el?.classList.contains('hide'))
                return;
            el.classList.add('hide');
            if (!this.search.hidden)
                this.search.hidden = true;
            if (el.dataset.cloze === undefined)
                el.dataset.cloze = el.innerHTML;
            el.innerHTML = el.dataset.hint;
        }
        iter(fwd) {
            this.log('iter');
            const els = this.content.querySelectorAll('.cloze');
            let nxt;
            if (this.current?.classList.contains('hide'))
                nxt = this.current;
            if (fwd && this.current === els[els.length - 1])
                nxt = this.cfg.iteration.loop ? els[0] : this.current;
            else if (!fwd && this.current === els[0])
                nxt = this.cfg.iteration.loop ? els[els.length - 1] : this.current;
            for (let i = 0; !nxt && i < els.length; i++) {
                if (els[i] === this.current)
                    nxt = els[i + (fwd ? 1 : -1)];
            }
            if (nxt !== this.current && this.cfg.iteration.hide)
                this.hide(this.current);
            this.show(this.current = nxt);
            this.scroll_to({ scroll: this.cfg.scroll.iterate, cloze: this.current });
        }
        toggle_cloze(cloze) {
            this.log('toggle_cloze');
            const show = cloze.classList.contains('hide');
            if (show)
                this.show(cloze);
            else
                this.hide(cloze);
            return show;
        }
        toggle_field(field) {
            this.log('toggle_field');
            const fld = ancestor(field, '.fc2-additional-content') ||
                ancestor(field, '.fc2-additional-header').nextElementSibling;
            if (fld)
                fld.hidden = !fld.hidden;
        }
        toggle_all(show = undefined) {
            this.log('toggle_all');
            if (show === true || this.search.hidden ||
                show === undefined &&
                    this.content.querySelector('.cloze.hide, .cloze-inactive.hide, .fc2-additional-content[hidden]')) {
                this.content.querySelectorAll('.cloze.hide, .cloze-inactive.hide')
                    .forEach(el => { this.show(el); });
                this.viewport.querySelectorAll('.fc2-additional-content[hidden]')
                    .forEach(el => { el.hidden = false; });
                this.search.hidden = false;
                return true;
            }
            else {
                this.content.querySelectorAll('.cloze:not(.hide), .cloze-inactive:not(.hide)')
                    .forEach(el => { this.hide(el); });
                this.viewport.querySelectorAll('.fc2-additional-content:not([hidden])')
                    .forEach(el => { el.hidden = true; });
                this.search.hidden = true;
                return false;
            }
        }
        scroll_to(opts) {
            this.log('scroll_to');
            if (!this.cfg.front) {
                const scroll_top = parseFloat(sessionStorage.getItem('fc2_scroll_top'));
                if (!isNaN(scroll_top)) {
                    sessionStorage.removeItem('fc2_scroll_top');
                    this.viewport.scrollTop = scroll_top;
                }
            }
            if (opts.scroll === 'none')
                return;
            let first, last;
            if (opts.cloze)
                first = last = opts.cloze;
            else {
                const active = this.content.querySelectorAll('.cloze');
                first = active[0];
                last = active[active.length - 1];
            }
            const offset = this.viewport.getBoundingClientRect().top;
            const line_height = (style) => {
                this.log('    line_height');
                return parseInt(style.height) + parseInt(style.marginTop) + parseInt(style.marginBottom)
                    || parseInt(style.lineHeight)
                    || 20;
            };
            const vp_height = this.viewport.clientHeight;
            const cloze_top = (first.getBoundingClientRect().top - offset) - line_height(window.getComputedStyle(first?.previousElementSibling || first, ':before')) + 3;
            let top;
            const bottom = (last.getBoundingClientRect().bottom - offset) + line_height(window.getComputedStyle(last?.nextElementSibling || last, ':after')) + 3;
            let y = 0;
            if (opts.scroll?.slice(0, 7) === 'context') {
                top = 0;
                let section, section_seen, cloze_seen;
                const sections = this.content.querySelectorAll('hr, h1, h2, h3, h4, h5, h6, .cloze');
                for (let i = 0; i < sections.length; i++) {
                    cloze_seen || (cloze_seen = sections[i].tagName === 'SPAN');
                    section_seen || (section_seen = sections[i].tagName !== 'SPAN');
                    if (!cloze_seen)
                        section = sections[i];
                    if (cloze_seen && (section || section_seen))
                        break;
                }
                if (section) {
                    top = section.tagName === 'HR'
                        ? (section.getBoundingClientRect().bottom - offset)
                        : (section.getBoundingClientRect().top - offset) - 5;
                }
                else if (!section_seen) {
                    const all = this.content.querySelectorAll('.cloze, .cloze-inactive');
                    for (let i = 1; i < all.length; i++) {
                        if (all[i] === this.current) {
                            top = (all[i - 1].getBoundingClientRect().top - offset) - 5;
                            break;
                        }
                    }
                }
            }
            else
                top = cloze_top;
            if (['center', 'context', 'context-bottom'].includes(opts.scroll)) {
                if (bottom - top <= vp_height)
                    opts.scroll === 'context-bottom'
                        ? y = bottom - vp_height
                        : y = top + (bottom - top) / 2 - vp_height / 2;
                else if (this.cfg.front)
                    y = top;
                else
                    y = bottom - cloze_top <= vp_height
                        ? bottom - vp_height
                        : cloze_top;
            }
            else {
                if (cloze_top < 0 || bottom - top >= vp_height)
                    y = cloze_top;
                else if (bottom > vp_height)
                    y = bottom - vp_height;
            }
            this.log(`    scrolling ${opts.scroll} to`, this.viewport.scrollTop + y);
            if (y)
                this.viewport.scrollTop += y;
        }
        mouse(evt) {
            this.log('mouse event');
            const el = evt.target;
            let target;
            if (target = ancestor(el, '.cloze, .cloze-inactive')) {
                evt.stopPropagation();
                if (!document.getSelection()?.toString()) {
                    if (!this.cfg.iteration.top)
                        this.current = target;
                    this.toggle_cloze(target);
                    this.scroll_to({ scroll: this.cfg.scroll.click, cloze: target });
                }
            }
            else if (target = ancestor(el, '.fc2-additional-header, .fc2-additional-content')) {
                if (!document.getSelection()?.toString())
                    this.toggle_field(target);
            }
            else if (['fc2-show-all-btn', 'fc2-nav-toggle-all'].includes(el.id))
                this.search.hidden = !this.toggle_all();
            else if (el.id === 'fc2-nav-prev-cloze')
                this.iter(false);
            else if (el.id === 'fc2-nav-next-cloze')
                this.iter(true);
        }
        keyboard(evt) {
            this.log('keyboard event');
            if (evt.key === 'Escape' && !this.search.panel.hidden) {
                this.search.hidden = true;
                evt.stopImmediatePropagation();
            }
            else if (evt.key === this.cfg.shortcuts.next)
                this.iter(true);
            else if (evt.key === this.cfg.shortcuts.previous)
                this.iter(false);
            else if (evt.key === this.cfg.shortcuts.toggle_all)
                this.toggle_all();
            else if (evt.key === 'f' && evt.ctrlKey && !evt.metaKey) {
                if (this.search.hidden)
                    this.toggle_all(true);
                this.search.focus();
            }
            else
                return;
            evt.stopPropagation();
            evt.preventDefault();
        }
    }

fc2 || (fc2 = new FC2);
    fc2.load(config, 'front');

})();
</script>

更改後文本

Open file

<script type="application/javascript">
var config = {
    prompt: '[...]',             // Prompt when no hint
    hint: '[%h]',               // %h is replaced with hint text
    expose: {
        char: '!',              // Char to mark exposed cloze
        pos: 'begin',           // Char pos: `pre`, `begin`, `end` or `post`
        reverse: '{{Invert cloze hiding}}'.toString()     // If true exposed clozes are hidden, others shown
    },
    scroll: {                   // Valid values: `none`, `min`, `center`, `context`, `context-top` or `context-bottom`
        initial: 'center',     // Scoll on initial show
        click: 'min',           // Scroll on cloze click
        iterate: 'min'          // Scroll on iteration
    },
    iteration: {
        top: false,             // Always start iteration from top
        loop: true,             // Restart from top/bottom from end
        hide: false              // Hide cloze iterated away from
    },
    shortcuts: {
        next: 'j',              // Iterate to next cloze
        previous: 'h',          // Iterate to previous cloze
        toggle_all: 'k'         // Toggle all clozes and fields
    },
    show: {                     // `false` means initially collapsed/hidden
        inactive: false,        // Inactive clozes
        additional: true       // Additional fields (Note, Mnemonics etc.)
    },
    fields: {
        title: true,                // Title area
        legends: [ ],
        show_all_button: true, // Optional "show all" button at bottom of page
        log: false            // Debug information level (`false`, `'error'` or `true`)
    }
}
</script>

{{#Title}}<div id="fc2-title">{{Title}}</div>{{/Title}}

<div id="fc2-viewport">
    
    <div id="fc2-content" class="linkRender">{{cloze:Text}}</div>
    <div id="fc2-content-placeholder">This note type requires <code>nested cloze support</code> and <code>increased meta data</code> features from the Anki 2.1.56+ backend (Anki desktop 2.1.56+, AnkiDroid 2.16alpha93+ with `Use new backend` enabled and AnkiMobile 2.0.88+).</div>

<div id="fc2-additional">
        {{#Extra}}
            <div id="fc2-extra-header" class="fc2-additional-header"></div>
            <div id="fc2-extra-content" class="fc2-additional-content">{{Extra}}</div>
        {{/Extra}}
        {{#Source}}
            <gr><br>Source: {{Source}} </gr>
        {{/Source}}
<p class=footer>{{clickable:Tags}}</p>
        <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
        </div>
    </div>
</div>

function ancestor(descendant, selector) {
        while (descendant && !descendant.matches(selector))
            descendant = descendant.parentElement;
        return descendant;
    }

fc2 || (fc2 = new FC2);
    fc2.load(config, 'back');

})();
</script>