less/lib/less/tree/element.js

Leaner CSS

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var node_1 = tslib_1.__importDefault(require("./node"));
var paren_1 = tslib_1.__importDefault(require("./paren"));
var combinator_1 = tslib_1.__importDefault(require("./combinator"));
var Element = function (combinator, value, isVariable, index, currentFileInfo, visibilityInfo) {
    this.combinator = combinator instanceof combinator_1.default ?
        combinator : new combinator_1.default(combinator);
    if (typeof value === 'string') {
        this.value = value.trim();
    }
    else if (value) {
        this.value = value;
    }
    else {
        this.value = '';
    }
    this.isVariable = isVariable;
    this._index = index;
    this._fileInfo = currentFileInfo;
    this.copyVisibilityInfo(visibilityInfo);
    this.setParent(this.combinator, this);
};
Element.prototype = Object.assign(new node_1.default(), {
    type: 'Element',
    accept: function (visitor) {
        var value = this.value;
        this.combinator = visitor.visit(this.combinator);
        if (typeof value === 'object') {
            this.value = visitor.visit(value);
        }
    },
    eval: function (context) {
        return new Element(this.combinator, this.value.eval ? this.value.eval(context) : this.value, this.isVariable, this.getIndex(), this.fileInfo(), this.visibilityInfo());
    },
    clone: function () {
        return new Element(this.combinator, this.value, this.isVariable, this.getIndex(), this.fileInfo(), this.visibilityInfo());
    },
    genCSS: function (context, output) {
        output.add(this.toCSS(context), this.fileInfo(), this.getIndex());
    },
    toCSS: function (context) {
        context = context || {};
        var value = this.value;
        var firstSelector = context.firstSelector;
        if (value instanceof paren_1.default) {
            // selector in parens should not be affected by outer selector
            // flags (breaks only interpolated selectors - see #1973)
            context.firstSelector = true;
        }
        value = value.toCSS ? value.toCSS(context) : value;
        context.firstSelector = firstSelector;
        if (value === '' && this.combinator.value.charAt(0) === '&') {
            return '';
        }
        else {
            return this.combinator.toCSS(context) + value;
        }
    }
});
exports.default = Element;
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