412 lines
12 KiB
JavaScript
412 lines
12 KiB
JavaScript
/* global regExpTester */
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'use strict';
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function createAppliesToLineWidget(cm) {
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const APPLIES_TYPE = [
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[t('appliesUrlOption'), 'url'],
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[t('appliesUrlPrefixOption'), 'url-prefix'],
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[t('appliesDomainOption'), 'domain'],
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[t('appliesRegexpOption'), 'regexp']
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];
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const THROTTLE_DELAY = 400;
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let widgets = [];
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let timer, fromLine, toLine, style, isInit;
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return {toggle};
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function toggle(state = !isInit) {
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if (!isInit && state) {
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init();
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} else if (isInit && !state) {
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uninit();
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}
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}
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function init() {
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isInit = true;
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style = getComputedStyle(cm.getGutterElement());
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fromLine = null;
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toLine = null;
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cm.on('change', onChange);
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cm.on('optionChange', onOptionChange);
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// is it possible to avoid flickering?
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window.addEventListener('load', updateStyle);
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update();
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}
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function uninit() {
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isInit = false;
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widgets.forEach(clearWidget);
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widgets.length = 0;
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cm.off('change', onChange);
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cm.off('optionChange', onOptionChange);
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window.removeEventListener('load', updateStyle);
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}
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function onChange(cm, {from, to, origin}) {
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if (origin === 'appliesTo') {
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return;
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}
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if (fromLine === null || toLine === null) {
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fromLine = from.line;
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toLine = to.line;
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} else {
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fromLine = Math.min(fromLine, from.line);
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toLine = Math.max(toLine, to.line);
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}
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clearTimeout(timer);
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timer = setTimeout(update, THROTTLE_DELAY);
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}
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function onOptionChange(cm, option) {
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if (option === 'theme') {
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updateStyle();
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}
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}
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function update() {
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cm.operation(doUpdate);
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}
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function updateStyle() {
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style = getComputedStyle(cm.getGutterElement());
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widgets.forEach(setWidgetStyle);
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}
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function setWidgetStyle(widget) {
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let borderStyle = '';
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if (style.borderRightWidth !== '0px') {
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borderStyle = `${style.borderRightWidth} ${style.borderRightStyle} ${style.borderRightColor}`;
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} else {
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borderStyle = `1px solid ${style.color}`;
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}
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widget.node.style.backgroundColor = style.backgroundColor;
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widget.node.style.borderTop = borderStyle;
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widget.node.style.borderBottom = borderStyle;
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}
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function doUpdate() {
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// find which widgets needs to be update
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// some widgets (lines) might be deleted
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widgets = widgets.filter(w => w.line.lineNo() !== null);
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let i = fromLine === null ? 0 : widgets.findIndex(w => w.line.lineNo() > fromLine) - 1;
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let j = toLine === null ? 0 : widgets.findIndex(w => w.line.lineNo() > toLine);
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if (i === -2) {
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i = widgets.length - 1;
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}
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if (j < 0) {
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j = widgets.length;
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}
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// decide search range
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const fromIndex = widgets[i] ? cm.indexFromPos({line: widgets[i].line.lineNo(), ch: 0}) : 0;
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const toIndex = widgets[j] ? cm.indexFromPos({line: widgets[j].line.lineNo(), ch: 0}) : cm.getValue().length;
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// splice
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if (i < 0) {
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i = 0;
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}
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widgets.splice(i, 0, ...createWidgets(fromIndex, toIndex, widgets.splice(i, j - i)));
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fromLine = null;
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toLine = null;
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}
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function *createWidgets(start, end, removed) {
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let i = 0;
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for (const section of findAppliesTo(start, end)) {
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while (removed[i] && removed[i].line.lineNo() < section.pos.line) {
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clearWidget(removed[i++]);
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}
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setupMarkers(section);
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if (removed[i] && removed[i].line.lineNo() === section.pos.line) {
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// reuse old widget
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removed[i].section.applies.forEach(apply => {
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apply.type.mark.clear();
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apply.value.mark.clear();
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});
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removed[i].section = section;
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const newNode = buildElement(section);
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removed[i].node.parentNode.replaceChild(newNode, removed[i].node);
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removed[i].node = newNode;
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setWidgetStyle(removed[i]);
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removed[i].changed();
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yield removed[i];
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i++;
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continue;
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}
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// new widget
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const widget = cm.addLineWidget(section.pos.line, buildElement(section), {
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coverGutter: true,
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noHScroll: true,
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above: true
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});
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widget.section = section;
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setWidgetStyle(widget);
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yield widget;
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}
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removed.slice(i).forEach(clearWidget);
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}
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function clearWidget(widget) {
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widget.clear();
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widget.section.applies.forEach(clearApply);
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}
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function clearApply(apply) {
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apply.type.mark.clear();
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apply.value.mark.clear();
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apply.mark.clear();
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}
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function setupMarkers({applies}) {
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applies.forEach(setupApplyMarkers);
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}
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function setupApplyMarkers(apply) {
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apply.type.mark = cm.markText(
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cm.posFromIndex(apply.type.start),
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cm.posFromIndex(apply.type.end),
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{clearWhenEmpty: false}
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);
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apply.value.mark = cm.markText(
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cm.posFromIndex(apply.value.start),
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cm.posFromIndex(apply.value.end),
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{clearWhenEmpty: false}
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);
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apply.mark = cm.markText(
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cm.posFromIndex(apply.start),
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cm.posFromIndex(apply.end),
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{clearWhenEmpty: false}
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);
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}
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function buildElement({applies}) {
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const el = $element({className: 'applies-to', appendChild: [
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$element({tag: 'label', appendChild: [
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t('appliesLabel'),
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// $element({tag: 'svg'})
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]}),
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$element({
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tag: 'ul',
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className: 'applies-to-list',
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appendChild: applies.map(makeInputEl)
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})
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]});
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if (!$('li', el)) {
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$('ul', el).appendChild($element({
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tag: 'li',
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className: 'applies-to-everything',
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textContent: t('appliesToEverything')
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}));
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}
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return el;
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function makeInputEl(apply) {
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const el = $element({tag: 'li', appendChild: makeInput(apply)});
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el.dataset.type = apply.type.text;
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el.addEventListener('change', e => {
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if (e.target.classList.contains('applies-type')) {
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el.dataset.type = apply.type.text;
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}
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});
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return el;
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}
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function makeInput(apply) {
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const typeInput = $element({
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tag: 'select',
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className: 'applies-type',
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appendChild: APPLIES_TYPE.map(([label, value]) => $element({
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tag: 'option',
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value: value,
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textContent: label
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})),
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onchange(e) {
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applyChange(apply.type, e.target.value);
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}
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});
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typeInput.value = apply.type.text;
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let timer;
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const valueInput = $element({
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tag: 'input',
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className: 'applies-value',
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value: apply.value.text,
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oninput(e) {
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clearTimeout(timer);
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timer = setTimeout(applyChange, THROTTLE_DELAY, apply.value, e.target.value);
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},
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onfocus: updateRegexpTest
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});
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const regexpTestButton = $element({
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tag: 'button',
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type: 'button',
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className: 'applies-to-regexp-test',
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textContent: t('styleRegexpTestButton'),
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onclick() {
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regExpTester.toggle();
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regExpTester.update([apply.value.text]);
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}
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});
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const removeButton = $element({
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tag: 'button',
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type: 'button',
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className: 'applies-to-remove',
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textContent: t('appliesRemove'),
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onclick(e) {
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const i = applies.indexOf(apply);
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let repl;
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let from;
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let to;
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if (applies.length < 2) {
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alert('Can\'t remove last applies-to');
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return;
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}
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if (i === 0) {
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from = apply.mark.find().from;
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to = applies[i + 1].mark.find().from;
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repl = '';
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} else if (i === applies.length - 1) {
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from = applies[i - 1].mark.find().to;
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to = apply.mark.find().to;
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repl = '';
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} else {
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from = applies[i - 1].mark.find().to;
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to = applies[i + 1].mark.find().from;
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repl = ', ';
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}
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cm.replaceRange(repl, from, to, 'appliesTo');
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clearApply(apply);
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e.target.closest('li').remove();
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applies.splice(i, 1);
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}
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});
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const addButton = $element({
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tag: 'button',
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type: 'button',
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className: 'applies-to-add',
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textContent: t('appliesAdd'),
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onclick(e) {
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const i = applies.indexOf(apply);
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const pos = apply.mark.find().to;
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const text = `, ${apply.type.text}("")`;
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cm.replaceRange(text, pos, pos, 'appliesTo');
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const index = cm.indexFromPos(pos);
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const newApply = {
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type: {
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text: apply.type.text
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},
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value: {
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text: ''
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}
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};
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newApply.start = index + 2;
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newApply.type.start = newApply.start;
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newApply.type.end = newApply.type.start + newApply.type.text.length;
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newApply.value.start = newApply.type.end + 2;
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newApply.value.end = newApply.value.start + newApply.value.text.length;
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newApply.end = newApply.value.end + 2;
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setupApplyMarkers(newApply);
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applies.splice(i + 1, 0, newApply);
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const li = e.target.closest('li');
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li.parentNode.insertBefore(makeInputEl(newApply), li.nextSibling);
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}
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});
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return [typeInput, valueInput, regexpTestButton, removeButton, addButton];
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function updateRegexpTest() {
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if (apply.type.text === 'regexp') {
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const re = apply.value.text.trim();
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if (re) {
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regExpTester.update([re]);
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} else {
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regExpTester.update([]);
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}
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}
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}
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function applyChange(input, newText) {
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const range = input.mark.find();
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input.mark.clear();
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cm.replaceRange(newText, range.from, range.to, 'appliesTo');
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input.mark = cm.markText(
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range.from,
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cm.findPosH(
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range.from,
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newText.length,
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'char'
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),
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{clearWhenEmpty: false}
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);
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input.text = newText;
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if (input === apply.type) {
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const range = apply.mark.find();
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apply.mark.clear();
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apply.mark = cm.markText(
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input.mark.find().from,
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range.to,
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{clearWhenEmpty: false}
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);
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}
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updateRegexpTest();
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}
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}
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}
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function *findAppliesTo(posStart, posEnd) {
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const text = cm.getValue();
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const re = /^[\t ]*@-moz-document\s+/mg;
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const applyRe = /^(url|url-prefix|domain|regexp)\(((['"])(?:\\\\|\\\n|\\\3|[^\n])*?\3|[^)\n]*)\)[\s,]*/i;
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let preIndex = re.lastIndex = posStart;
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let match;
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let pos = cm.posFromIndex(preIndex);
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while ((match = re.exec(text))) {
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if (match.index >= posEnd) {
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return;
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}
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pos = cm.findPosH(pos, match.index - preIndex, 'char');
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const applies = [];
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let t = text.slice(re.lastIndex);
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let m;
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let offset = 0;
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while ((m = t.match(applyRe))) {
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const apply = {
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type: {
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text: m[1]
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},
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value: {
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text: normalizeString(m[2])
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}
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};
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apply.type.start = re.lastIndex + offset;
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apply.type.end = apply.type.start + apply.type.text.length;
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apply.value.start = apply.type.end + (apply.value.text === m[2] ? 1 : 2);
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apply.value.end = apply.value.start + apply.value.text.length;
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apply.start = apply.type.start;
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apply.end = apply.value.end + (apply.value.text === m[2] ? 1 : 2);
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applies.push(apply);
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t = t.slice(m[0].length);
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offset += m[0].length;
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}
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yield {pos, applies};
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preIndex = match.index;
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re.lastIndex = text.length - t.length;
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}
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}
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function normalizeString(s) {
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if (/^(['"])[\s\S]*\1$/.test(s)) {
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return s.slice(1, -1);
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}
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return s;
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}
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}
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