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Leaner CSS
138 lines • 6.47 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function default_1(environment) {
var SourceMapOutput = /** @class */ (function () {
function SourceMapOutput(options) {
this._css = [];
this._rootNode = options.rootNode;
this._contentsMap = options.contentsMap;
this._contentsIgnoredCharsMap = options.contentsIgnoredCharsMap;
if (options.sourceMapFilename) {
this._sourceMapFilename = options.sourceMapFilename.replace(/\\/g, '/');
}
this._outputFilename = options.outputFilename;
this.sourceMapURL = options.sourceMapURL;
if (options.sourceMapBasepath) {
this._sourceMapBasepath = options.sourceMapBasepath.replace(/\\/g, '/');
}
if (options.sourceMapRootpath) {
this._sourceMapRootpath = options.sourceMapRootpath.replace(/\\/g, '/');
if (this._sourceMapRootpath.charAt(this._sourceMapRootpath.length - 1) !== '/') {
this._sourceMapRootpath += '/';
}
}
else {
this._sourceMapRootpath = '';
}
this._outputSourceFiles = options.outputSourceFiles;
this._sourceMapGeneratorConstructor = environment.getSourceMapGenerator();
this._lineNumber = 0;
this._column = 0;
}
SourceMapOutput.prototype.removeBasepath = function (path) {
if (this._sourceMapBasepath && path.indexOf(this._sourceMapBasepath) === 0) {
path = path.substring(this._sourceMapBasepath.length);
if (path.charAt(0) === '\\' || path.charAt(0) === '/') {
path = path.substring(1);
}
}
return path;
};
SourceMapOutput.prototype.normalizeFilename = function (filename) {
filename = filename.replace(/\\/g, '/');
filename = this.removeBasepath(filename);
return (this._sourceMapRootpath || '') + filename;
};
SourceMapOutput.prototype.add = function (chunk, fileInfo, index, mapLines) {
// ignore adding empty strings
if (!chunk) {
return;
}
var lines, sourceLines, columns, sourceColumns, i;
if (fileInfo && fileInfo.filename) {
var inputSource = this._contentsMap[fileInfo.filename];
// remove vars/banner added to the top of the file
if (this._contentsIgnoredCharsMap[fileInfo.filename]) {
// adjust the index
index -= this._contentsIgnoredCharsMap[fileInfo.filename];
if (index < 0) {
index = 0;
}
// adjust the source
inputSource = inputSource.slice(this._contentsIgnoredCharsMap[fileInfo.filename]);
}
/**
* ignore empty content, or failsafe
* if contents map is incorrect
*/
if (inputSource === undefined) {
this._css.push(chunk);
return;
}
inputSource = inputSource.substring(0, index);
sourceLines = inputSource.split('\n');
sourceColumns = sourceLines[sourceLines.length - 1];
}
lines = chunk.split('\n');
columns = lines[lines.length - 1];
if (fileInfo && fileInfo.filename) {
if (!mapLines) {
this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + 1, column: this._column },
original: { line: sourceLines.length, column: sourceColumns.length },
source: this.normalizeFilename(fileInfo.filename) });
}
else {
for (i = 0; i < lines.length; i++) {
this._sourceMapGenerator.addMapping({ generated: { line: this._lineNumber + i + 1, column: i === 0 ? this._column : 0 },
original: { line: sourceLines.length + i, column: i === 0 ? sourceColumns.length : 0 },
source: this.normalizeFilename(fileInfo.filename) });
}
}
}
if (lines.length === 1) {
this._column += columns.length;
}
else {
this._lineNumber += lines.length - 1;
this._column = columns.length;
}
this._css.push(chunk);
};
SourceMapOutput.prototype.isEmpty = function () {
return this._css.length === 0;
};
SourceMapOutput.prototype.toCSS = function (context) {
this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null });
if (this._outputSourceFiles) {
for (var filename in this._contentsMap) {
// eslint-disable-next-line no-prototype-builtins
if (this._contentsMap.hasOwnProperty(filename)) {
var source = this._contentsMap[filename];
if (this._contentsIgnoredCharsMap[filename]) {
source = source.slice(this._contentsIgnoredCharsMap[filename]);
}
this._sourceMapGenerator.setSourceContent(this.normalizeFilename(filename), source);
}
}
}
this._rootNode.genCSS(context, this);
if (this._css.length > 0) {
var sourceMapURL = void 0;
var sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON());
if (this.sourceMapURL) {
sourceMapURL = this.sourceMapURL;
}
else if (this._sourceMapFilename) {
sourceMapURL = this._sourceMapFilename;
}
this.sourceMapURL = sourceMapURL;
this.sourceMap = sourceMapContent;
}
return this._css.join('');
};
return SourceMapOutput;
}());
return SourceMapOutput;
}
exports.default = default_1;
//# sourceMappingURL=source-map-output.js.map