angular2-platform-node/node-shared-styles-host.js

Universal (isomorphic) javascript support for Angular2

"use strict";
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var get_dom_1 = require('./get-dom');
var core_1 = require('@angular/core');
var SharedStylesHost = (function () {
    function SharedStylesHost() {
        this._styles = [];
        this._stylesSet = new Set();
    }
    SharedStylesHost.prototype.addStyles = function (styles) {
        var _this = this;
        var additions = [];
        styles.forEach(function (style) {
            if (!_this._stylesSet.has(style)) {
                _this._stylesSet.add(style);
                _this._styles.push(style);
                additions.push(style);
            }
        });
        this.onStylesAdded(additions);
    };
    SharedStylesHost.prototype.onStylesAdded = function (_additions) { };
    SharedStylesHost.prototype.getAllStyles = function () { return this._styles; };
    SharedStylesHost.decorators = [
        { type: core_1.Injectable },
    ];
    SharedStylesHost.ctorParameters = [];
    return SharedStylesHost;
}());
exports.SharedStylesHost = SharedStylesHost;
var NodeSharedStylesHost = (function (_super) {
    __extends(NodeSharedStylesHost, _super);
    function NodeSharedStylesHost() {
        _super.call(this);
        this._hostNodes = new Set();
    }
    NodeSharedStylesHost.prototype.addHost = function (hostNode) {
        this._addStylesToHost(this._styles, hostNode);
        this._hostNodes.add(hostNode);
    };
    NodeSharedStylesHost.prototype.removeHost = function (hostNode) {
        this._hostNodes.delete(hostNode);
    };
    NodeSharedStylesHost.prototype.onStylesAdded = function (additions) {
        var _this = this;
        this._hostNodes.forEach(function (hostNode) {
            _this._addStylesToHost(additions, hostNode);
        });
    };
    NodeSharedStylesHost.prototype._addStylesToHost = function (styles, host) {
        for (var i = 0; i < styles.length; i++) {
            var style = styles[i];
            get_dom_1.getDOM().appendChild(host, get_dom_1.getDOM().createStyleElement(style));
        }
    };
    NodeSharedStylesHost.decorators = [
        { type: core_1.Injectable },
    ];
    NodeSharedStylesHost.ctorParameters = [];
    return NodeSharedStylesHost;
}(SharedStylesHost));
exports.NodeSharedStylesHost = NodeSharedStylesHost;
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