331 lines
10 KiB
JavaScript
331 lines
10 KiB
JavaScript
/* global $ $$remove $create $isTextInput messageBoxProxy */// dom.js
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/* global API */// msg.js
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/* global CodeMirror */
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/* global MozDocMapper */// util.js
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/* global MozSectionFinder */
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/* global MozSectionWidget */
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/* global RX_META debounce */// toolbox.js
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/* global chromeSync */// storage-util.js
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/* global cmFactory */
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/* global editor */
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/* global linterMan */
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/* global prefs */
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/* global t */// localization.js
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'use strict';
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/* exported SourceEditor */
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function SourceEditor() {
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const {style, /** @type DirtyReporter */dirty} = editor;
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const DEFAULT_TEMPLATE = `
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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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let savedGeneration;
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let prevMode = NaN;
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$$remove('.sectioned-only');
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$('#header').on('wheel', headerOnScroll);
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$('#sections').textContent = '';
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$('#sections').appendChild($create('.single-editor'));
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$('#save-button').on('split-btn', saveTemplate);
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const cm = cmFactory.create($('.single-editor'));
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const sectionFinder = MozSectionFinder(cm);
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const sectionWidget = MozSectionWidget(cm, sectionFinder);
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editor.livePreview.init(preprocess);
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if (!style.id) setupNewStyle();
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createMetaCompiler(meta => {
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style.usercssData = meta;
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style.name = meta.name;
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style.url = meta.homepageURL || style.installationUrl;
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updateMeta();
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});
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updateMeta();
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cm.setValue(style.sourceCode);
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/** @namespace Editor */
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Object.assign(editor, {
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sections: sectionFinder.sections,
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replaceStyle,
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updateLivePreview,
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updateMeta,
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closestVisible: () => cm,
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getEditors: () => [cm],
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getEditorTitle: () => '',
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getValue: () => cm.getValue(),
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getSearchableInputs: () => [],
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prevEditor: nextPrevSection.bind(null, -1),
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nextEditor: nextPrevSection.bind(null, 1),
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jumpToEditor(i) {
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const sec = sectionFinder.sections[i];
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if (sec) {
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sectionFinder.updatePositions(sec);
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cm.jumpToPos(sec.start);
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cm.focus();
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}
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},
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async saveImpl() {
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const sourceCode = cm.getValue();
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try {
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const {customName, enabled, id} = style;
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let res = !id && await API.usercss.build({sourceCode, checkDup: true, metaOnly: true});
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if (res && res.dup) {
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messageBoxProxy.alert(t('usercssAvoidOverwriting'), 'danger', t('genericError'));
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} else {
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res = await API.usercss.editSave({customName, enabled, id, sourceCode});
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// Awaiting inside `try` so that exceptions go to our `catch`
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await replaceStyle(res.style);
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}
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showLog(res);
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} catch (err) {
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showSaveError(err);
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}
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},
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scrollToEditor: () => {},
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});
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prefs.subscribeMany({
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'editor.linter': updateLinterSwitch,
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'editor.appliesToLineWidget': (k, val) => sectionWidget.toggle(val),
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'editor.toc.expanded': (k, val) => sectionFinder.onOff(editor.updateToc, val),
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}, {runNow: true});
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editor.applyScrollInfo(cm);
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cm.clearHistory();
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cm.markClean();
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savedGeneration = cm.changeGeneration();
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cm.on('changes', () => {
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dirty.modify('sourceGeneration', savedGeneration, cm.changeGeneration());
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debounce(updateLivePreview, editor.previewDelay);
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});
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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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linterMan.run();
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updateLinterSwitch();
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});
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setTimeout(linterMan.enableForEditor, 0, cm);
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if (!$isTextInput(document.activeElement)) {
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cm.focus();
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}
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async function preprocess(style) {
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const res = await API.usercss.build({
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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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showLog(res);
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delete res.style.enabled;
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return Object.assign(style, res.style);
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}
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/** Shows the console.log output from the background worker stored in `log` property */
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function showLog(data) {
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if (data.log) data.log.forEach(args => console.log(...args));
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return data;
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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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editor.livePreview.update(Object.assign({}, style, {sourceCode: cm.getValue()}));
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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() {
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const comment = `/* ${t('usercssReplaceTemplateSectionBody')} */`;
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const sec0 = style.sections[0];
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sec0.code = ' '.repeat(prefs.get('editor.tabSize')) + comment;
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if (Object.keys(sec0).length === 1) { // the only key is 'code'
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sec0.domains = ['example.com'];
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}
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style.name = [style.name, new Date().toLocaleString()].filter(Boolean).join(' - ');
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style.sourceCode = (editor.template || DEFAULT_TEMPLATE)
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.replace(/(@name)(?:([\t\x20]+).*|\n)/, (_, k, space) => `${k}${space || ' '}${style.name}`)
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.replace(/\s*@-moz-document[^{]*{([^}]*)}\s*$/g, // stripping dummy sections
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(s, body) => body.trim() === comment ? '\n\n' : s)
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.trim() +
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'\n\n' +
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MozDocMapper.styleToCss(style);
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cm.startOperation();
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cm.setValue(style.sourceCode);
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cm.clearHistory();
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cm.markClean();
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cm.endOperation();
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dirty.clear('sourceGeneration');
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savedGeneration = cm.changeGeneration();
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}
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function updateMeta() {
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const name = style.customName || style.name;
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$('#name').value = name;
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$('#enabled').checked = style.enabled;
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$('#url').href = style.url;
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editor.updateName();
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cm.setPreprocessor((style.usercssData || {}).preprocessor);
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}
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async function replaceStyle(newStyle) {
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dirty.clear('name');
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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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editor.useSavedStyle(newStyle);
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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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if (await messageBoxProxy.confirm(t('styleUpdateDiscardChanges'))) {
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editor.useSavedStyle(newStyle);
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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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}
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async function saveTemplate() {
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const res = await messageBoxProxy.show({
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contents: t('usercssReplaceTemplateConfirmation'),
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className: 'center',
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buttons: [t('confirmYes'), t('confirmNo'), {
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textContent: t('genericResetLabel'),
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title: t('restoreTemplate'),
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}],
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});
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if (res.enter || res.button !== 1) {
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const key = chromeSync.LZ_KEY.usercssTemplate;
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const code = res.button === 2 ? DEFAULT_TEMPLATE : cm.getValue();
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await chromeSync.setLZValue(key, code);
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if (await chromeSync.getLZValue(key) !== code) {
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messageBoxProxy.alert(t('syncStorageErrorSaving'));
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}
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}
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}
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function showSaveError(err) {
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err = Array.isArray(err) ? err : [err];
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const text = err.map(e => e.message || e).join('\n');
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const points = err.map(e =>
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e.index >= 0 && cm.posFromIndex(e.index) || // usercss meta parser
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e.offset >= 0 && {line: e.line - 1, ch: e.col - 1} // csslint code parser
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).filter(Boolean);
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cm.setSelections(points.map(p => ({anchor: p, head: p})));
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messageBoxProxy.alert($create('pre', text), 'pre');
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}
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function nextPrevSection(dir) {
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// ensure the data is ready in case the user wants to jump around a lot in a large style
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sectionFinder.keepAliveFor(nextPrevSection, 10e3);
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sectionFinder.updatePositions();
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const {sections} = sectionFinder;
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const num = sections.length;
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if (!num) return;
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dir = dir < 0 ? -1 : 0;
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const pos = cm.getCursor();
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let i = sections.findIndex(sec => CodeMirror.cmpPos(sec.start, pos) > Math.min(dir, 0));
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if (i < 0 && (!dir || CodeMirror.cmpPos(sections[num - 1].start, pos) < 0)) {
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i = 0;
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}
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cm.jumpToPos(sections[(i + dir + num) % num].start);
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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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function createMetaCompiler(onUpdated) {
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let meta = null;
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let metaIndex = null;
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let cache = [];
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linterMan.register(async (text, options, _cm) => {
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if (_cm !== cm) {
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return;
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}
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const match = text.match(RX_META);
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if (!match) {
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return [];
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}
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if (match[0] === meta && match.index === metaIndex) {
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return cache;
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}
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const {metadata, errors} = await linterMan.worker.metalint(match[0]);
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if (errors.every(err => err.code === 'unknownMeta')) {
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onUpdated(metadata);
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}
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cache = errors.map(({code, index, args, message}) => {
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const isUnknownMeta = code === 'unknownMeta';
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const typo = isUnknownMeta && args[1] ? 'Typo' : ''; // args[1] may be present but undefined
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return ({
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from: cm.posFromIndex((index || 0) + match.index),
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to: cm.posFromIndex((index || 0) + match.index),
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message: code && t(`meta_${code}${typo}`, args, false) || message,
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severity: isUnknownMeta ? 'warning' : 'error',
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rule: code,
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});
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});
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meta = match[0];
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metaIndex = match.index;
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return cache;
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});
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}
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}
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