stylus/edit/sections-editor-section.js

394 lines
11 KiB
JavaScript

/* global $ toggleDataset */// dom.js
/* global MozDocMapper trimCommentLabel */// util.js
/* global cmFactory */
/* global debounce tryRegExp */// toolbox.js
/* global editor */
/* global initBeautifyButton */// beautify.js
/* global linterMan */
/* global prefs */
/* global t */// localization.js
'use strict';
/* exported createSection */
/**
* @param {StyleSection} originalSection
* @param {function():number} genId
* @param {EditorScrollInfo} [si]
* @returns {EditorSection}
*/
function createSection(originalSection, genId, si) {
const {dirty} = editor;
const sectionId = genId();
const el = t.template.section.cloneNode(true);
const elLabel = $('.code-label', el);
const cm = cmFactory.create(wrapper => {
// making it tall during initial load so IntersectionObserver sees only one adjacent CM
if (editor.loading) {
wrapper.style.height = si ? si.height : '100vh';
}
elLabel.after(wrapper);
}, {
value: originalSection.code,
});
el.CodeMirror = cm; // used by getAssociatedEditor
cm.el = el;
editor.applyScrollInfo(cm, si);
const changeListeners = new Set();
const appliesToContainer = $('.applies-to', el);
const appliesToList = $('.applies-to-list', el);
const appliesTo = [];
MozDocMapper.forEachProp(originalSection, (type, value) =>
insertApplyAfter({type, value}));
if (!appliesTo.length) {
insertApplyAfter({all: true});
}
let changeGeneration = cm.changeGeneration();
let removed = false;
registerEvents();
updateRegexpTester();
createResizeGrip(cm);
/** @namespace EditorSection */
const section = {
id: sectionId,
el,
cm,
appliesTo,
getModel() {
const items = appliesTo.map(a => !a.all && [a.type, a.value]);
return MozDocMapper.toSection(items, {code: cm.getValue()});
},
remove() {
linterMan.disableForEditor(cm);
el.classList.add('removed');
removed = true;
appliesTo.forEach(a => a.remove());
},
render() {
cm.refresh();
},
destroy() {
cmFactory.destroy(cm);
},
restore() {
linterMan.enableForEditor(cm);
el.classList.remove('removed');
removed = false;
appliesTo.forEach(a => a.restore());
cm.refresh();
},
onChange(fn) {
changeListeners.add(fn);
},
off(fn) {
changeListeners.delete(fn);
},
get removed() {
return removed;
},
tocEntry: {
label: '',
get removed() {
return removed;
},
},
};
prefs.subscribe('editor.toc.expanded', updateTocPrefToggled, {runNow: true});
return section;
function emitSectionChange(origin) {
for (const fn of changeListeners) {
fn(origin);
}
}
function registerEvents() {
cm.on('changes', () => {
const newGeneration = cm.changeGeneration();
dirty.modify(`section.${sectionId}.code`, changeGeneration, newGeneration);
changeGeneration = newGeneration;
emitSectionChange('code');
});
$('.test-regexp', el).onclick = () => updateRegexpTester(true);
initBeautifyButton($('.beautify-section', el), [cm]);
}
async function updateRegexpTester(toggle) {
const isLoaded = typeof regexpTester === 'object' ||
toggle && await require(['/edit/regexp-tester']); /* global regexpTester */
if (toggle != null) {
regexpTester.toggle(toggle);
}
const regexps = appliesTo.filter(a => a.type === 'regexp')
.map(a => a.value);
const hasRe = regexps.length > 0;
if (hasRe && isLoaded) regexpTester.update(regexps);
el.classList.toggle('has-regexp', hasRe);
}
function updateTocEntry(origin) {
const te = section.tocEntry;
let changed;
if (origin === 'code' || !origin) {
const label = getLabelFromComment();
if (te.label !== label) {
te.label = elLabel.dataset.text = label;
changed = true;
}
}
if (!te.label) {
const target = appliesTo[0].all ? null : appliesTo[0].value;
if (te.target !== target) {
te.target = target;
changed = true;
}
if (te.numTargets !== appliesTo.length) {
te.numTargets = appliesTo.length;
changed = true;
}
}
if (changed) editor.updateToc([section]);
}
function updateTocEntryLazy(...args) {
debounce(updateTocEntry, 0, ...args);
}
function updateTocFocus() {
editor.updateToc({focus: true, 0: section});
}
function updateTocPrefToggled(key, val) {
changeListeners[val ? 'add' : 'delete'](updateTocEntryLazy);
(val ? el.on : el.off).call(el, 'focusin', updateTocFocus);
if (val) {
updateTocEntry();
if (el.contains(document.activeElement)) {
updateTocFocus();
}
}
}
function getLabelFromComment() {
let cmt = '';
let inCmt;
cm.eachLine(({text}) => {
let i = 0;
if (!inCmt) {
i = text.search(/\S/);
if (i < 0) return;
inCmt = text[i] === '/' && text[i + 1] === '*';
if (!inCmt) return true;
i += 2;
}
const j = text.indexOf('*/', i);
cmt = trimCommentLabel(text.slice(i, j >= 0 ? j : text.length));
return j >= 0 || cmt;
});
return cmt;
}
function insertApplyAfter(init, base) {
const apply = createApply(init);
appliesTo.splice(base ? appliesTo.indexOf(base) + 1 : appliesTo.length, 0, apply);
appliesToList.insertBefore(apply.el, base ? base.el.nextSibling : null);
toggleDataset(appliesToContainer, 'all', init.all);
dirty.add(apply, apply);
if (appliesTo.length > 1 && appliesTo[0].all) {
removeApply(appliesTo[0]);
}
if (base) requestAnimationFrame(shrinkSectionBy1);
emitSectionChange('apply');
return apply;
}
function removeApply(apply) {
const index = appliesTo.indexOf(apply);
appliesTo.splice(index, 1);
apply.remove();
apply.el.remove();
dirty.remove(apply, apply);
if (!appliesTo.length) {
insertApplyAfter({all: true});
}
emitSectionChange('apply');
}
function createApply({type = 'url', value, all = false}) {
const applyId = genId();
const dirtyPrefix = `section.${sectionId}.apply.${applyId}`;
const el = all ? t.template.appliesToEverything.cloneNode(true) :
t.template.appliesTo.cloneNode(true);
const selectEl = !all && $('.applies-type', el);
if (selectEl) {
selectEl.value = type;
selectEl.on('change', () => {
const oldType = type;
dirty.modify(`${dirtyPrefix}.type`, type, selectEl.value);
type = selectEl.value;
if (oldType === 'regexp' || type === 'regexp') {
updateRegexpTester();
}
emitSectionChange('apply');
validate();
});
}
const valueEl = !all && $('.applies-value', el);
if (valueEl) {
valueEl.value = value;
valueEl.on('input', () => {
dirty.modify(`${dirtyPrefix}.value`, value, valueEl.value);
value = valueEl.value;
if (type === 'regexp') {
updateRegexpTester();
}
emitSectionChange('apply');
});
valueEl.on('change', validate);
}
restore();
const apply = {
id: applyId,
all,
remove,
restore,
el,
valueEl, // used by validator
get type() {
return type;
},
get value() {
return value;
},
};
const removeButton = $('.remove-applies-to', el);
if (removeButton) {
removeButton.on('click', e => {
e.preventDefault();
removeApply(apply);
});
}
$('.add-applies-to', el).on('click', e => {
e.preventDefault();
const newApply = insertApplyAfter({type, value: ''}, apply);
$('input', newApply.el).focus();
});
return apply;
function validate() {
if (type !== 'regexp' || tryRegExp(value)) {
valueEl.setCustomValidity('');
} else {
valueEl.setCustomValidity(t('styleBadRegexp'));
setTimeout(() => valueEl.reportValidity());
}
}
function remove() {
if (all) {
return;
}
dirty.remove(`${dirtyPrefix}.type`, type);
dirty.remove(`${dirtyPrefix}.value`, value);
}
function restore() {
if (all) {
return;
}
dirty.add(`${dirtyPrefix}.type`, type);
dirty.add(`${dirtyPrefix}.value`, value);
}
}
function shrinkSectionBy1() {
const cmEl = cm.display.wrapper;
const cmH = cmEl.offsetHeight;
const viewH = el.parentElement.offsetHeight;
if (el.offsetHeight > viewH && cmH > Math.min(viewH / 2, cm.display.sizer.offsetHeight + 30)) {
cmEl.style.height = (cmH - appliesToContainer.offsetHeight / (appliesTo.length || 1) | 0) + 'px';
}
}
}
function createResizeGrip(cm) {
const wrapper = cm.display.wrapper;
wrapper.classList.add('resize-grip-enabled');
const resizeGrip = t.template.resizeGrip.cloneNode(true);
wrapper.appendChild(resizeGrip);
let lastClickTime = 0;
let lastHeight;
let lastY;
resizeGrip.onmousedown = event => {
lastHeight = wrapper.offsetHeight;
lastY = event.clientY;
if (event.button !== 0) {
return;
}
event.preventDefault();
if (Date.now() - lastClickTime < 500) {
lastClickTime = 0;
toggleSectionHeight(cm);
return;
}
lastClickTime = Date.now();
const minHeight = cm.defaultTextHeight() +
/* .CodeMirror-lines padding */
cm.display.lineDiv.offsetParent.offsetTop +
/* borders */
wrapper.offsetHeight - wrapper.clientHeight;
document.body.classList.add('resizing-v');
document.on('mousemove', resize);
document.on('mouseup', resizeStop);
function resize(e) {
const height = Math.max(minHeight, lastHeight + e.clientY - lastY);
if (height !== lastHeight) {
cm.setSize(null, height);
lastHeight = height;
lastY = e.clientY;
}
}
function resizeStop() {
document.off('mouseup', resizeStop);
document.off('mousemove', resize);
document.body.classList.remove('resizing-v');
}
};
function toggleSectionHeight(cm) {
if (cm.state.toggleHeightSaved) {
// restore previous size
cm.setSize(null, cm.state.toggleHeightSaved);
cm.state.toggleHeightSaved = 0;
} else {
// maximize
const wrapper = cm.display.wrapper;
const allBounds = $('#sections').getBoundingClientRect();
const pageExtrasHeight = allBounds.top + window.scrollY +
parseFloat(getComputedStyle($('#sections')).paddingBottom);
const sectionEl = wrapper.parentNode;
const sectionExtrasHeight = sectionEl.clientHeight - wrapper.offsetHeight;
cm.state.toggleHeightSaved = wrapper.clientHeight;
cm.setSize(null, window.innerHeight - sectionExtrasHeight - pageExtrasHeight);
const bounds = sectionEl.getBoundingClientRect();
if (bounds.top < 0 || bounds.bottom > window.innerHeight) {
window.scrollBy(0, bounds.top);
}
}
}
}