wishthis/node_modules/less/lib/less-browser/file-manager.js
2022-01-21 09:28:41 +01:00

103 lines
No EOL
4.1 KiB
JavaScript

"use strict";
/* global window, XMLHttpRequest */
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var abstract_file_manager_js_1 = tslib_1.__importDefault(require("../less/environment/abstract-file-manager.js"));
var options;
var logger;
var fileCache = {};
// TODOS - move log somewhere. pathDiff and doing something similar in node. use pathDiff in the other browser file for the initial load
var FileManager = function () { };
FileManager.prototype = Object.assign(new abstract_file_manager_js_1.default(), {
alwaysMakePathsAbsolute: function () {
return true;
},
join: function (basePath, laterPath) {
if (!basePath) {
return laterPath;
}
return this.extractUrlParts(laterPath, basePath).path;
},
doXHR: function (url, type, callback, errback) {
var xhr = new XMLHttpRequest();
var async = options.isFileProtocol ? options.fileAsync : true;
if (typeof xhr.overrideMimeType === 'function') {
xhr.overrideMimeType('text/css');
}
logger.debug("XHR: Getting '" + url + "'");
xhr.open('GET', url, async);
xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5');
xhr.send(null);
function handleResponse(xhr, callback, errback) {
if (xhr.status >= 200 && xhr.status < 300) {
callback(xhr.responseText, xhr.getResponseHeader('Last-Modified'));
}
else if (typeof errback === 'function') {
errback(xhr.status, url);
}
}
if (options.isFileProtocol && !options.fileAsync) {
if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
callback(xhr.responseText);
}
else {
errback(xhr.status, url);
}
}
else if (async) {
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
handleResponse(xhr, callback, errback);
}
};
}
else {
handleResponse(xhr, callback, errback);
}
},
supports: function () {
return true;
},
clearFileCache: function () {
fileCache = {};
},
loadFile: function (filename, currentDirectory, options, environment) {
// TODO: Add prefix support like less-node?
// What about multiple paths?
if (currentDirectory && !this.isPathAbsolute(filename)) {
filename = currentDirectory + filename;
}
filename = options.ext ? this.tryAppendExtension(filename, options.ext) : filename;
options = options || {};
// sheet may be set to the stylesheet for the initial load or a collection of properties including
// some context variables for imports
var hrefParts = this.extractUrlParts(filename, window.location.href);
var href = hrefParts.url;
var self = this;
return new Promise(function (resolve, reject) {
if (options.useFileCache && fileCache[href]) {
try {
var lessText = fileCache[href];
return resolve({ contents: lessText, filename: href, webInfo: { lastModified: new Date() } });
}
catch (e) {
return reject({ filename: href, message: "Error loading file " + href + " error was " + e.message });
}
}
self.doXHR(href, options.mime, function doXHRCallback(data, lastModified) {
// per file cache
fileCache[href] = data;
// Use remote copy (re-parse)
resolve({ contents: data, filename: href, webInfo: { lastModified: lastModified } });
}, function doXHRError(status, url) {
reject({ type: 'File', message: "'" + url + "' wasn't found (" + status + ")", href: href });
});
});
}
});
exports.default = (function (opts, log) {
options = opts;
logger = log;
return FileManager;
});
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