less/lib/less/tree/atrule.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 selector_1 = tslib_1.__importDefault(require("./selector"));
var ruleset_1 = tslib_1.__importDefault(require("./ruleset"));
var anonymous_1 = tslib_1.__importDefault(require("./anonymous"));
var AtRule = function (name, value, rules, index, currentFileInfo, debugInfo, isRooted, visibilityInfo) {
    var i;
    this.name = name;
    this.value = (value instanceof node_1.default) ? value : (value ? new anonymous_1.default(value) : value);
    if (rules) {
        if (Array.isArray(rules)) {
            this.rules = rules;
        }
        else {
            this.rules = [rules];
            this.rules[0].selectors = (new selector_1.default([], null, null, index, currentFileInfo)).createEmptySelectors();
        }
        for (i = 0; i < this.rules.length; i++) {
            this.rules[i].allowImports = true;
        }
        this.setParent(this.rules, this);
    }
    this._index = index;
    this._fileInfo = currentFileInfo;
    this.debugInfo = debugInfo;
    this.isRooted = isRooted || false;
    this.copyVisibilityInfo(visibilityInfo);
    this.allowRoot = true;
};
AtRule.prototype = Object.assign(new node_1.default(), {
    type: 'AtRule',
    accept: function (visitor) {
        var value = this.value, rules = this.rules;
        if (rules) {
            this.rules = visitor.visitArray(rules);
        }
        if (value) {
            this.value = visitor.visit(value);
        }
    },
    isRulesetLike: function () {
        return this.rules || !this.isCharset();
    },
    isCharset: function () {
        return '@charset' === this.name;
    },
    genCSS: function (context, output) {
        var value = this.value, rules = this.rules;
        output.add(this.name, this.fileInfo(), this.getIndex());
        if (value) {
            output.add(' ');
            value.genCSS(context, output);
        }
        if (rules) {
            this.outputRuleset(context, output, rules);
        }
        else {
            output.add(';');
        }
    },
    eval: function (context) {
        var mediaPathBackup, mediaBlocksBackup, value = this.value, rules = this.rules;
        // media stored inside other atrule should not bubble over it
        // backpup media bubbling information
        mediaPathBackup = context.mediaPath;
        mediaBlocksBackup = context.mediaBlocks;
        // deleted media bubbling information
        context.mediaPath = [];
        context.mediaBlocks = [];
        if (value) {
            value = value.eval(context);
        }
        if (rules) {
            // assuming that there is only one rule at this point - that is how parser constructs the rule
            rules = [rules[0].eval(context)];
            rules[0].root = true;
        }
        // restore media bubbling information
        context.mediaPath = mediaPathBackup;
        context.mediaBlocks = mediaBlocksBackup;
        return new AtRule(this.name, value, rules, this.getIndex(), this.fileInfo(), this.debugInfo, this.isRooted, this.visibilityInfo());
    },
    variable: function (name) {
        if (this.rules) {
            // assuming that there is only one rule at this point - that is how parser constructs the rule
            return ruleset_1.default.prototype.variable.call(this.rules[0], name);
        }
    },
    find: function () {
        if (this.rules) {
            // assuming that there is only one rule at this point - that is how parser constructs the rule
            return ruleset_1.default.prototype.find.apply(this.rules[0], arguments);
        }
    },
    rulesets: function () {
        if (this.rules) {
            // assuming that there is only one rule at this point - that is how parser constructs the rule
            return ruleset_1.default.prototype.rulesets.apply(this.rules[0]);
        }
    },
    outputRuleset: function (context, output, rules) {
        var ruleCnt = rules.length;
        var i;
        context.tabLevel = (context.tabLevel | 0) + 1;
        // Compressed
        if (context.compress) {
            output.add('{');
            for (i = 0; i < ruleCnt; i++) {
                rules[i].genCSS(context, output);
            }
            output.add('}');
            context.tabLevel--;
            return;
        }
        // Non-compressed
        var tabSetStr = "\n".concat(Array(context.tabLevel).join('  ')), tabRuleStr = "".concat(tabSetStr, "  ");
        if (!ruleCnt) {
            output.add(" {".concat(tabSetStr, "}"));
        }
        else {
            output.add(" {".concat(tabRuleStr));
            rules[0].genCSS(context, output);
            for (i = 1; i < ruleCnt; i++) {
                output.add(tabRuleStr);
                rules[i].genCSS(context, output);
            }
            output.add("".concat(tabSetStr, "}"));
        }
        context.tabLevel--;
    }
});
exports.default = AtRule;
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