less/lib/less/plugin-manager.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Plugin Manager
 */
var PluginManager = /** @class */ (function () {
    function PluginManager(less) {
        this.less = less;
        this.visitors = [];
        this.preProcessors = [];
        this.postProcessors = [];
        this.installedPlugins = [];
        this.fileManagers = [];
        this.iterator = -1;
        this.pluginCache = {};
        this.Loader = new less.PluginLoader(less);
    }
    /**
     * Adds all the plugins in the array
     * @param {Array} plugins
     */
    PluginManager.prototype.addPlugins = function (plugins) {
        if (plugins) {
            for (var i = 0; i < plugins.length; i++) {
                this.addPlugin(plugins[i]);
            }
        }
    };
    /**
     *
     * @param plugin
     * @param {String} filename
     */
    PluginManager.prototype.addPlugin = function (plugin, filename, functionRegistry) {
        this.installedPlugins.push(plugin);
        if (filename) {
            this.pluginCache[filename] = plugin;
        }
        if (plugin.install) {
            plugin.install(this.less, this, functionRegistry || this.less.functions.functionRegistry);
        }
    };
    /**
     *
     * @param filename
     */
    PluginManager.prototype.get = function (filename) {
        return this.pluginCache[filename];
    };
    /**
     * Adds a visitor. The visitor object has options on itself to determine
     * when it should run.
     * @param visitor
     */
    PluginManager.prototype.addVisitor = function (visitor) {
        this.visitors.push(visitor);
    };
    /**
     * Adds a pre processor object
     * @param {object} preProcessor
     * @param {number} priority - guidelines 1 = before import, 1000 = import, 2000 = after import
     */
    PluginManager.prototype.addPreProcessor = function (preProcessor, priority) {
        var indexToInsertAt;
        for (indexToInsertAt = 0; indexToInsertAt < this.preProcessors.length; indexToInsertAt++) {
            if (this.preProcessors[indexToInsertAt].priority >= priority) {
                break;
            }
        }
        this.preProcessors.splice(indexToInsertAt, 0, { preProcessor: preProcessor, priority: priority });
    };
    /**
     * Adds a post processor object
     * @param {object} postProcessor
     * @param {number} priority - guidelines 1 = before compression, 1000 = compression, 2000 = after compression
     */
    PluginManager.prototype.addPostProcessor = function (postProcessor, priority) {
        var indexToInsertAt;
        for (indexToInsertAt = 0; indexToInsertAt < this.postProcessors.length; indexToInsertAt++) {
            if (this.postProcessors[indexToInsertAt].priority >= priority) {
                break;
            }
        }
        this.postProcessors.splice(indexToInsertAt, 0, { postProcessor: postProcessor, priority: priority });
    };
    /**
     *
     * @param manager
     */
    PluginManager.prototype.addFileManager = function (manager) {
        this.fileManagers.push(manager);
    };
    /**
     *
     * @returns {Array}
     * @private
     */
    PluginManager.prototype.getPreProcessors = function () {
        var preProcessors = [];
        for (var i = 0; i < this.preProcessors.length; i++) {
            preProcessors.push(this.preProcessors[i].preProcessor);
        }
        return preProcessors;
    };
    /**
     *
     * @returns {Array}
     * @private
     */
    PluginManager.prototype.getPostProcessors = function () {
        var postProcessors = [];
        for (var i = 0; i < this.postProcessors.length; i++) {
            postProcessors.push(this.postProcessors[i].postProcessor);
        }
        return postProcessors;
    };
    /**
     *
     * @returns {Array}
     * @private
     */
    PluginManager.prototype.getVisitors = function () {
        return this.visitors;
    };
    PluginManager.prototype.visitor = function () {
        var self = this;
        return {
            first: function () {
                self.iterator = -1;
                return self.visitors[self.iterator];
            },
            get: function () {
                self.iterator += 1;
                return self.visitors[self.iterator];
            }
        };
    };
    /**
     *
     * @returns {Array}
     * @private
     */
    PluginManager.prototype.getFileManagers = function () {
        return this.fileManagers;
    };
    return PluginManager;
}());
var pm;
var PluginManagerFactory = function (less, newFactory) {
    if (newFactory || !pm) {
        pm = new PluginManager(less);
    }
    return pm;
};
//
exports.default = PluginManagerFactory;
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