402 lines
12 KiB
JavaScript
402 lines
12 KiB
JavaScript
/* global dirtyReporter
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createAppliesToLineWidget messageBox
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sectionsToMozFormat
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createMetaCompiler linter createLivePreview cmFactory $ $create API prefs t
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chromeSync */
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/* exported createSourceEditor */
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'use strict';
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function createSourceEditor(style) {
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$('#name').disabled = true;
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$('#save-button').disabled = true;
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$('#mozilla-format-container').remove();
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$('#save-button').onclick = save;
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$('#header').addEventListener('wheel', headerOnScroll);
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$('#sections').textContent = '';
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$('#sections').appendChild($create('.single-editor'));
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const dirty = dirtyReporter();
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dirty.onChange(() => {
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const isDirty = dirty.isDirty();
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document.body.classList.toggle('dirty', isDirty);
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$('#save-button').disabled = !isDirty;
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updateTitle();
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});
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// normalize style
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if (!style.id) setupNewStyle(style);
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const cm = cmFactory.create($('.single-editor'), {
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value: style.sourceCode,
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});
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let savedGeneration = cm.changeGeneration();
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const livePreview = createLivePreview(preprocess);
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livePreview.show(Boolean(style.id));
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$('#enabled').onchange = function () {
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const value = this.checked;
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dirty.modify('enabled', style.enabled, value);
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style.enabled = value;
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updateLivePreview();
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};
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cm.on('changes', () => {
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dirty.modify('sourceGeneration', savedGeneration, cm.changeGeneration());
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updateLivePreview();
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});
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cm.operation(initAppliesToLineWidget);
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const metaCompiler = createMetaCompiler(cm);
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metaCompiler.onUpdated(meta => {
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style.usercssData = meta;
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style.name = meta.name;
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style.url = meta.homepageURL;
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updateMeta();
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});
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linter.enableForEditor(cm);
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updateMeta().then(() => {
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let prevMode = NaN;
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cm.on('optionChange', (cm, option) => {
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if (option !== 'mode') return;
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const mode = getModeName();
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if (mode === prevMode) return;
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prevMode = mode;
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linter.run();
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updateLinterSwitch();
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});
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$('#editor.linter').addEventListener('change', updateLinterSwitch);
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updateLinterSwitch();
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setTimeout(() => {
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if ((document.activeElement || {}).localName !== 'input') {
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cm.focus();
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}
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});
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});
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function preprocess(style) {
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return API.buildUsercss({
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styleId: style.id,
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sourceCode: style.sourceCode,
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assignVars: true
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})
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.then(({style: newStyle}) => {
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delete newStyle.enabled;
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return Object.assign(style, newStyle);
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});
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}
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function updateLivePreview() {
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if (!style.id) {
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return;
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}
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livePreview.update(Object.assign({}, style, {sourceCode: cm.getValue()}));
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}
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function initAppliesToLineWidget() {
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const PREF_NAME = 'editor.appliesToLineWidget';
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const widget = createAppliesToLineWidget(cm);
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widget.toggle(prefs.get(PREF_NAME));
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prefs.subscribe([PREF_NAME], (key, value) => widget.toggle(value));
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}
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function updateLinterSwitch() {
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const el = $('#editor.linter');
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el.value = getCurrentLinter();
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const cssLintOption = $('[value="csslint"]', el);
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const mode = getModeName();
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if (mode !== 'css') {
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cssLintOption.disabled = true;
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cssLintOption.title = t('linterCSSLintIncompatible', mode);
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} else {
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cssLintOption.disabled = false;
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cssLintOption.title = '';
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}
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}
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function getCurrentLinter() {
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const name = prefs.get('editor.linter');
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if (cm.getOption('mode') !== 'css' && name === 'csslint') {
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return 'stylelint';
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}
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return name;
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}
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function setupNewStyle(style) {
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style.sections[0].code = ' '.repeat(prefs.get('editor.tabSize')) +
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`/* ${t('usercssReplaceTemplateSectionBody')} */`;
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let section = sectionsToMozFormat(style);
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if (!section.includes('@-moz-document')) {
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style.sections[0].domains = ['example.com'];
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section = sectionsToMozFormat(style);
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}
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const DEFAULT_CODE = `
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/* ==UserStyle==
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@name ${''/* a trick to preserve the trailing spaces */}
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@namespace github.com/openstyles/stylus
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@version 1.0.0
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@description A new userstyle
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@author Me
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==/UserStyle== */
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`.replace(/^\s+/gm, '');
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dirty.clear('sourceGeneration');
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style.sourceCode = '';
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chromeSync.getLZValue('usercssTemplate').then(code => {
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const name = style.name || t('usercssReplaceTemplateName');
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const date = new Date().toLocaleString();
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code = code || DEFAULT_CODE;
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code = code.replace(/@name(\s*)(?=[\r\n])/, (str, space) =>
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`${str}${space ? '' : ' '}${name} - ${date}`);
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// strip the last dummy section if any, add an empty line followed by the section
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style.sourceCode = code.replace(/\s*@-moz-document[^{]*\{[^}]*\}\s*$|\s+$/g, '') + '\n\n' + section;
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cm.startOperation();
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cm.setValue(style.sourceCode);
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cm.clearHistory();
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cm.markClean();
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cm.endOperation();
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dirty.clear('sourceGeneration');
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savedGeneration = cm.changeGeneration();
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});
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}
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function updateMeta() {
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$('#name').value = style.name;
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$('#enabled').checked = style.enabled;
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$('#url').href = style.url;
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updateTitle();
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return cm.setPreprocessor((style.usercssData || {}).preprocessor);
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}
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function updateTitle() {
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const newTitle = (dirty.isDirty() ? '* ' : '') +
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(style.id ? style.name : t('addStyleTitle'));
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if (document.title !== newTitle) {
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document.title = newTitle;
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}
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}
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function replaceStyle(newStyle, codeIsUpdated) {
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const sameCode = newStyle.sourceCode === cm.getValue();
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if (sameCode) {
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savedGeneration = cm.changeGeneration();
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dirty.clear('sourceGeneration');
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}
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if (codeIsUpdated === false || sameCode) {
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updateEnvironment();
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dirty.clear('enabled');
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updateLivePreview();
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return;
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}
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Promise.resolve(messageBox.confirm(t('styleUpdateDiscardChanges'))).then(ok => {
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if (!ok) return;
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updateEnvironment();
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if (!sameCode) {
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const cursor = cm.getCursor();
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cm.setValue(style.sourceCode);
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cm.setCursor(cursor);
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savedGeneration = cm.changeGeneration();
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}
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if (sameCode) {
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// the code is same but the environment is changed
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updateLivePreview();
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}
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dirty.clear();
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});
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function updateEnvironment() {
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if (style.id !== newStyle.id) {
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history.replaceState({}, '', `?id=${newStyle.id}`);
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}
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sessionStorage.justEditedStyleId = newStyle.id;
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Object.assign(style, newStyle);
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$('#preview-label').classList.remove('hidden');
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updateMeta();
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livePreview.show(Boolean(style.id));
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}
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}
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function toggleStyle() {
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const value = !style.enabled;
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dirty.modify('enabled', style.enabled, value);
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style.enabled = value;
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updateMeta();
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$('#enabled').dispatchEvent(new Event('change', {bubbles: true}));
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}
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function save() {
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if (!dirty.isDirty()) return;
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const code = cm.getValue();
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return ensureUniqueStyle(code)
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.then(() => API.editSaveUsercss({
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id: style.id,
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enabled: style.enabled,
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sourceCode: code,
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}))
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.then(replaceStyle)
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.catch(err => {
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if (err.handled) return;
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if (err.code === 'missingMandatory' && err.args.includes('name')) {
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messageBox.confirm(t('usercssReplaceTemplateConfirmation')).then(ok => ok &&
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chromeSync.setLZValue('usercssTemplate', code)
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.then(() => chromeSync.getLZValue('usercssTemplate'))
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.then(saved => saved !== code && messageBox.alert(t('syncStorageErrorSaving'))));
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return;
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}
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const contents = Array.isArray(err) ?
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$create('pre', err.join('\n')) :
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[err.message || String(err)];
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if (Number.isInteger(err.index)) {
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const pos = cm.posFromIndex(err.index);
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contents[0] += ` (line ${pos.line + 1} col ${pos.ch + 1})`;
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contents.push($create('pre', drawLinePointer(pos)));
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}
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messageBox.alert(contents, 'pre');
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});
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}
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function ensureUniqueStyle(code) {
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return style.id ? Promise.resolve() :
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API.buildUsercss({
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sourceCode: code,
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checkDup: true,
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metaOnly: true,
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}).then(({dup}) => {
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if (dup) {
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messageBox.alert(t('usercssAvoidOverwriting'), 'danger', t('genericError'));
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return Promise.reject({handled: true});
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}
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});
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}
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function drawLinePointer(pos) {
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const SIZE = 60;
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const line = cm.getLine(pos.line);
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const numTabs = pos.ch + 1 - line.slice(0, pos.ch + 1).replace(/\t/g, '').length;
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const pointer = ' '.repeat(pos.ch) + '^';
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const start = Math.max(Math.min(pos.ch - SIZE / 2, line.length - SIZE), 0);
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const end = Math.min(Math.max(pos.ch + SIZE / 2, SIZE), line.length);
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const leftPad = start !== 0 ? '...' : '';
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const rightPad = end !== line.length ? '...' : '';
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return (
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leftPad +
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line.slice(start, end).replace(/\t/g, ' '.repeat(cm.options.tabSize)) +
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rightPad +
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'\n' +
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' '.repeat(leftPad.length + numTabs * cm.options.tabSize) +
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pointer.slice(start, end)
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);
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}
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function nextPrevMozDocument(cm, dir) {
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const MOZ_DOC = '@-moz-document';
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const cursor = cm.getCursor();
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const usePrevLine = dir < 0 && cursor.ch <= MOZ_DOC.length;
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let line = cursor.line + (usePrevLine ? -1 : 0);
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let start = usePrevLine ? 1e9 : cursor.ch + (dir > 0 ? 1 : -MOZ_DOC.length);
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let found;
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if (dir > 0) {
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cm.doc.iter(cursor.line, cm.doc.size, goFind);
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if (!found && cursor.line > 0) {
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line = 0;
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cm.doc.iter(0, cursor.line + 1, goFind);
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}
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} else {
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let handle, parentLines;
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let passesRemain = line < cm.doc.size - 1 ? 2 : 1;
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let stopAtLine = 0;
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while (passesRemain--) {
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let indexInParent = 0;
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while (line >= stopAtLine) {
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if (!indexInParent--) {
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handle = cm.getLineHandle(line);
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parentLines = handle.parent.lines;
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indexInParent = parentLines.indexOf(handle);
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} else {
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handle = parentLines[indexInParent];
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}
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if (goFind(handle)) {
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return true;
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}
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}
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line = cm.doc.size - 1;
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stopAtLine = cursor.line;
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}
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}
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function goFind({text}) {
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// use the initial 'start' on cursor row...
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let ch = start;
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// ...and reset it for the rest
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start = dir > 0 ? 0 : 1e9;
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while (true) {
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// indexOf is 1000x faster than toLowerCase().indexOf() so we're trying it first
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ch = dir > 0 ? text.indexOf('@-', ch) : text.lastIndexOf('@-', ch);
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if (ch < 0) {
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line += dir;
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return;
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}
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if (text.substr(ch, MOZ_DOC.length).toLowerCase() === MOZ_DOC &&
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cm.getTokenTypeAt({line, ch: ch + 1}) === 'def') {
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break;
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}
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ch += dir * 3;
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}
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cm.setCursor(line, ch);
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if (cm.cursorCoords().bottom > cm.display.scroller.clientHeight - 100) {
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const margin = Math.min(100, cm.display.scroller.clientHeight / 4);
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line += prefs.get('editor.appliesToLineWidget') ? 1 : 0;
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cm.scrollIntoView({line, ch}, margin);
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}
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found = true;
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return true;
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}
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}
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function headerOnScroll({target, deltaY, deltaMode, shiftKey}) {
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while ((target = target.parentElement)) {
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if (deltaY < 0 && target.scrollTop ||
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deltaY > 0 && target.scrollTop + target.clientHeight < target.scrollHeight) {
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return;
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}
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}
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cm.display.scroller.scrollTop +=
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// WheelEvent.DOM_DELTA_LINE
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deltaMode === 1 ? deltaY * cm.defaultTextHeight() :
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// WheelEvent.DOM_DELTA_PAGE
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deltaMode === 2 || shiftKey ? Math.sign(deltaY) * cm.display.scroller.clientHeight :
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// WheelEvent.DOM_DELTA_PIXEL
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deltaY;
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}
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function getModeName() {
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const mode = cm.doc.mode;
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if (!mode) return '';
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return (mode.name || mode || '') +
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(mode.helperType || '');
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}
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return {
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replaceStyle,
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isDirty: dirty.isDirty,
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getStyle: () => style,
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getEditors: () => [cm],
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scrollToEditor: () => {},
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getStyleId: () => style.id,
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getEditorTitle: () => '',
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save,
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toggleStyle,
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prevEditor: cm => nextPrevMozDocument(cm, -1),
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nextEditor: cm => nextPrevMozDocument(cm, 1),
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closestVisible: () => cm,
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getSearchableInputs: () => []
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};
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}
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