90 lines
2.3 KiB
JavaScript
90 lines
2.3 KiB
JavaScript
/* global usercss saveStyle getStyles */
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'use strict';
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// eslint-disable-next-line no-var
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var usercssHelper = (() => {
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function buildMeta(style) {
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if (style.usercssData) {
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return Promise.resolve(style);
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}
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try {
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const {sourceCode} = style;
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// allow sourceCode to be normalized
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delete style.sourceCode;
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return Promise.resolve(Object.assign(usercss.buildMeta(sourceCode), style));
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} catch (e) {
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return Promise.reject(e);
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}
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}
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function buildCode(style) {
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return usercss.buildCode(style);
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}
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function wrapReject(pending) {
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return pending.then(result => ({success: true, result}))
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.catch(err => ({success: false, result: err.message || String(err)}));
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}
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// Parse the source and find the duplication
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function build({sourceCode, checkDup = false}, noReject) {
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const pending = buildMeta({sourceCode})
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.then(style => Promise.all([
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buildCode(style),
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checkDup && findDup(style)
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]))
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.then(([style, dup]) => ({style, dup}));
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return noReject ? wrapReject(pending) : pending;
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}
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function save(style, noReject) {
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const pending = buildMeta(style)
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.then(assignVars)
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.then(buildCode)
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.then(saveStyle);
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return noReject ? wrapReject(pending) : pending;
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function assignVars(style) {
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if (style.reason === 'config' && style.id) {
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return style;
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}
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return findDup(style).then(dup => {
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if (dup) {
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style.id = dup.id;
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if (style.reason !== 'config') {
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// preserve style.vars during update
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usercss.assignVars(style, dup);
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}
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}
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return style;
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});
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}
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}
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function findDup(style) {
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if (style.id) {
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return getStyles({id: style.id}).then(s => s[0]);
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}
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return getStyles().then(styles =>
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styles.find(target => {
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if (!target.usercssData) {
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return false;
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}
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return target.usercssData.name === style.usercssData.name &&
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target.usercssData.namespace === style.usercssData.namespace;
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})
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);
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}
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function openInstallPage(tabId, request) {
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const url = '/install-usercss.html' +
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'?updateUrl=' + encodeURIComponent(request.updateUrl) +
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'&tabId=' + tabId;
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return wrapReject(openURL({url}));
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}
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return {build, save, findDup, openInstallPage};
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})();
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