janus/lib/application/library.js

the two-faced application library-framework

// Generated by CoffeeScript 1.12.2
(function() {
  var Base, Library, util,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  util = require('../util/util');

  Base = require('../core/base').Base;

  Library = (function(superClass1) {
    extend(Library, superClass1);

    Library.prototype.isLibrary = true;

    function Library() {
      Library.__super__.constructor.call(this);
      this.bookcase = {};
      this.classTypes = [];
    }

    Library.prototype.register = function(klass, book, options) {
      var base, bookId, classShelf, contextShelf, name, ref;
      if (options == null) {
        options = {};
      }
      bookId = this._classIdForConstructor(klass);
      classShelf = (base = this.bookcase)[bookId] != null ? base[bookId] : base[bookId] = {};
      contextShelf = classShelf[name = (ref = options.context) != null ? ref : 'default'] != null ? classShelf[name] : classShelf[name] = [];
      contextShelf.push({
        book: book,
        options: options
      });
      if (options.priority != null) {
        contextShelf.sort(function(a, b) {
          var ref1, ref2;
          return ((ref1 = b.options.priority) != null ? ref1 : 0) - ((ref2 = a.options.priority) != null ? ref2 : 0);
        });
      }
    };

    Library.prototype.get = function(obj, criteria) {
      var ref, ref1, result;
      if (criteria == null) {
        criteria = {};
      }
      result = (ref = this._get(obj, obj != null ? obj.constructor : void 0, (ref1 = criteria.context) != null ? ref1 : 'default', criteria)) != null ? ref : this._get(obj, obj != null ? obj.constructor : void 0, 'default', criteria);
      if (result != null) {
        this.emit('got', obj, result, criteria);
      } else {
        this.emit('missed', obj, criteria);
      }
      return result != null ? result : null;
    };

    Library.prototype._get = function(obj, klass, context, criteria) {
      var bookId, contextShelf, i, isMatch, k, len, record, ref, ref1, superClass, v;
      bookId = (ref = this._classIdForInstance(obj)) != null ? ref : this._classIdForConstructor(klass);
      contextShelf = (ref1 = this.bookcase[bookId]) != null ? ref1[context] : void 0;
      if (contextShelf != null) {
        for (i = 0, len = contextShelf.length; i < len; i++) {
          record = contextShelf[i];
          isMatch = true;
          for (k in criteria) {
            v = criteria[k];
            if (k !== 'context' && k !== 'priority') {
              if (record.options[k] !== v) {
                isMatch = false;
                break;
              }
            }
          }
          if (isMatch === true) {
            return record.book;
          }
        }
      }
      if (klass != null) {
        if ((superClass = util.superClass(klass)) != null) {
          return this._get(obj, superClass, context, criteria);
        }
      }
    };

    Library.prototype._classIdForConstructor = function(klass) {
      var id;
      if (klass == null) {
        return 'null';
      } else if (klass === Number) {
        return 'number';
      } else if (klass === String) {
        return 'string';
      } else if (klass === Boolean) {
        return 'boolean';
      } else {
        if (klass.isCase === true) {
          klass = klass.type;
        }
        if ((id = this.classTypes.indexOf(klass)) >= 0) {
          return id;
        } else {
          id = this.classTypes.length;
          this.classTypes.push(klass);
          return id;
        }
      }
    };

    Library.prototype._classIdForInstance = function(obj) {
      if (obj == null) {
        return 'null';
      } else if (util.isNumber(obj)) {
        return 'number';
      } else if (util.isString(obj)) {
        return 'string';
      } else if (obj === true || obj === false) {
        return 'boolean';
      }
    };

    return Library;

  })(Base);

  module.exports = {
    Library: Library
  };

}).call(this);