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Direktori : /www/specpages-backup/node_modules/less/lib/less/tree/ |
Current File : //www/specpages-backup/node_modules/less/lib/less/tree/media.js |
"use strict"; var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { if (k2 === undefined) k2 = k; Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } }); }) : (function(o, m, k, k2) { if (k2 === undefined) k2 = k; o[k2] = m[k]; })); var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { Object.defineProperty(o, "default", { enumerable: true, value: v }); }) : function(o, v) { o["default"] = v; }); var __importStar = (this && this.__importStar) || function (mod) { if (mod && mod.__esModule) return mod; var result = {}; if (mod != null) for (var k in mod) if (k !== "default" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k); __setModuleDefault(result, mod); return result; }; var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); var ruleset_1 = __importDefault(require("./ruleset")); var value_1 = __importDefault(require("./value")); var selector_1 = __importDefault(require("./selector")); var anonymous_1 = __importDefault(require("./anonymous")); var expression_1 = __importDefault(require("./expression")); var atrule_1 = __importDefault(require("./atrule")); var utils = __importStar(require("../utils")); var Media = function (value, features, index, currentFileInfo, visibilityInfo) { this._index = index; this._fileInfo = currentFileInfo; var selectors = (new selector_1.default([], null, null, this._index, this._fileInfo)).createEmptySelectors(); this.features = new value_1.default(features); this.rules = [new ruleset_1.default(selectors, value)]; this.rules[0].allowImports = true; this.copyVisibilityInfo(visibilityInfo); this.allowRoot = true; this.setParent(selectors, this); this.setParent(this.features, this); this.setParent(this.rules, this); }; Media.prototype = new atrule_1.default(); Media.prototype.isRulesetLike = function () { return true; }; Media.prototype.accept = function (visitor) { if (this.features) { this.features = visitor.visit(this.features); } if (this.rules) { this.rules = visitor.visitArray(this.rules); } }; Media.prototype.genCSS = function (context, output) { output.add('@media ', this._fileInfo, this._index); this.features.genCSS(context, output); this.outputRuleset(context, output, this.rules); }; Media.prototype.eval = function (context) { if (!context.mediaBlocks) { context.mediaBlocks = []; context.mediaPath = []; } var media = new Media(null, [], this._index, this._fileInfo, this.visibilityInfo()); if (this.debugInfo) { this.rules[0].debugInfo = this.debugInfo; media.debugInfo = this.debugInfo; } media.features = this.features.eval(context); context.mediaPath.push(media); context.mediaBlocks.push(media); this.rules[0].functionRegistry = context.frames[0].functionRegistry.inherit(); context.frames.unshift(this.rules[0]); media.rules = [this.rules[0].eval(context)]; context.frames.shift(); context.mediaPath.pop(); return context.mediaPath.length === 0 ? media.evalTop(context) : media.evalNested(context); }; Media.prototype.evalTop = function (context) { var result = this; // Render all dependent Media blocks. if (context.mediaBlocks.length > 1) { var selectors = (new selector_1.default([], null, null, this.getIndex(), this.fileInfo())).createEmptySelectors(); result = new ruleset_1.default(selectors, context.mediaBlocks); result.multiMedia = true; result.copyVisibilityInfo(this.visibilityInfo()); this.setParent(result, this); } delete context.mediaBlocks; delete context.mediaPath; return result; }; Media.prototype.evalNested = function (context) { var i; var value; var path = context.mediaPath.concat([this]); // Extract the media-query conditions separated with `,` (OR). for (i = 0; i < path.length; i++) { value = path[i].features instanceof value_1.default ? path[i].features.value : path[i].features; path[i] = Array.isArray(value) ? value : [value]; } // Trace all permutations to generate the resulting media-query. // // (a, b and c) with nested (d, e) -> // a and d // a and e // b and c and d // b and c and e this.features = new value_1.default(this.permute(path).map(function (path) { path = path.map(function (fragment) { return fragment.toCSS ? fragment : new anonymous_1.default(fragment); }); for (i = path.length - 1; i > 0; i--) { path.splice(i, 0, new anonymous_1.default('and')); } return new expression_1.default(path); })); this.setParent(this.features, this); // Fake a tree-node that doesn't output anything. return new ruleset_1.default([], []); }; Media.prototype.permute = function (arr) { if (arr.length === 0) { return []; } else if (arr.length === 1) { return arr[0]; } else { var result = []; var rest = this.permute(arr.slice(1)); for (var i = 0; i < rest.length; i++) { for (var j = 0; j < arr[0].length; j++) { result.push([arr[0][j]].concat(rest[i])); } } return result; } }; Media.prototype.bubbleSelectors = function (selectors) { if (!selectors) { return; } this.rules = [new ruleset_1.default(utils.copyArray(selectors), [this.rules[0]])]; this.setParent(this.rules, this); }; Media.prototype.type = 'Media'; exports.default = Media; //# sourceMappingURL=media.js.map