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share/status/app/lib/angular/angular-resource.js  view on Meta::CPAN

/**
 * @license AngularJS v1.2.6
 * (c) 2010-2014 Google, Inc. http://angularjs.org
 * License: MIT
 */
(function(window, angular, undefined) {'use strict';

var $resourceMinErr = angular.$$minErr('$resource');

// Helper functions and regex to lookup a dotted path on an object
// stopping at undefined/null.  The path must be composed of ASCII
// identifiers (just like $parse)
var MEMBER_NAME_REGEX = /^(\.[a-zA-Z_$][0-9a-zA-Z_$]*)+$/;

function isValidDottedPath(path) {
  return (path != null && path !== '' && path !== 'hasOwnProperty' &&
      MEMBER_NAME_REGEX.test('.' + path));
}

function lookupDottedPath(obj, path) {
  if (!isValidDottedPath(path)) {
    throw $resourceMinErr('badmember', 'Dotted member path "@{0}" is invalid.', path);
  }
  var keys = path.split('.');
  for (var i = 0, ii = keys.length; i < ii && obj !== undefined; i++) {
    var key = keys[i];
    obj = (obj !== null) ? obj[key] : undefined;
  }
  return obj;
}

/**
 * Create a shallow copy of an object and clear other fields from the destination
 */
function shallowClearAndCopy(src, dst) {
  dst = dst || {};

  angular.forEach(dst, function(value, key){
    delete dst[key];
  });

  for (var key in src) {
    if (src.hasOwnProperty(key) && key.charAt(0) !== '$' && key.charAt(1) !== '$') {
      dst[key] = src[key];
    }
  }

  return dst;
}

/**
 * @ngdoc overview
 * @name ngResource
 * @description
 *
 * # ngResource
 *
 * The `ngResource` module provides interaction support with RESTful services
 * via the $resource service.
 *
 * {@installModule resource}
 *
 * <div doc-module-components="ngResource"></div>
 *
 * See {@link ngResource.$resource `$resource`} for usage.
 */

/**
 * @ngdoc object
 * @name ngResource.$resource
 * @requires $http
 *
 * @description
 * A factory which creates a resource object that lets you interact with
 * [RESTful](http://en.wikipedia.org/wiki/Representational_State_Transfer) server-side data sources.
 *
 * The returned resource object has action methods which provide high-level behaviors without
 * the need to interact with the low level {@link ng.$http $http} service.
 *
 * Requires the {@link ngResource `ngResource`} module to be installed.
 *
 * @param {string} url A parametrized URL template with parameters prefixed by `:` as in

share/status/app/lib/angular/angular-resource.js  view on Meta::CPAN

        forEach = angular.forEach,
        extend = angular.extend,
        copy = angular.copy,
        isFunction = angular.isFunction;

    /**
     * We need our custom method because encodeURIComponent is too aggressive and doesn't follow
     * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path
     * segments:
     *    segment       = *pchar
     *    pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
     *    pct-encoded   = "%" HEXDIG HEXDIG
     *    unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
     *    sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
     *                     / "*" / "+" / "," / ";" / "="
     */
    function encodeUriSegment(val) {
      return encodeUriQuery(val, true).
        replace(/%26/gi, '&').
        replace(/%3D/gi, '=').
        replace(/%2B/gi, '+');
    }


    /**
     * This method is intended for encoding *key* or *value* parts of query component. We need a
     * custom method because encodeURIComponent is too aggressive and encodes stuff that doesn't
     * have to be encoded per http://tools.ietf.org/html/rfc3986:
     *    query       = *( pchar / "/" / "?" )
     *    pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
     *    unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
     *    pct-encoded   = "%" HEXDIG HEXDIG
     *    sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
     *                     / "*" / "+" / "," / ";" / "="
     */
    function encodeUriQuery(val, pctEncodeSpaces) {
      return encodeURIComponent(val).
        replace(/%40/gi, '@').
        replace(/%3A/gi, ':').
        replace(/%24/g, '$').
        replace(/%2C/gi, ',').
        replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));
    }

    function Route(template, defaults) {
      this.template = template;
      this.defaults = defaults || {};
      this.urlParams = {};
    }

    Route.prototype = {
      setUrlParams: function(config, params, actionUrl) {
        var self = this,
            url = actionUrl || self.template,
            val,
            encodedVal;

        var urlParams = self.urlParams = {};
        forEach(url.split(/\W/), function(param){
          if (param === 'hasOwnProperty') {
            throw $resourceMinErr('badname', "hasOwnProperty is not a valid parameter name.");
          }
          if (!(new RegExp("^\\d+$").test(param)) && param &&
               (new RegExp("(^|[^\\\\]):" + param + "(\\W|$)").test(url))) {
            urlParams[param] = true;
          }
        });
        url = url.replace(/\\:/g, ':');

        params = params || {};
        forEach(self.urlParams, function(_, urlParam){
          val = params.hasOwnProperty(urlParam) ? params[urlParam] : self.defaults[urlParam];
          if (angular.isDefined(val) && val !== null) {
            encodedVal = encodeUriSegment(val);
            url = url.replace(new RegExp(":" + urlParam + "(\\W|$)", "g"), encodedVal + "$1");
          } else {
            url = url.replace(new RegExp("(\/?):" + urlParam + "(\\W|$)", "g"), function(match,
                leadingSlashes, tail) {
              if (tail.charAt(0) == '/') {
                return tail;
              } else {
                return leadingSlashes + tail;
              }
            });
          }
        });

        // strip trailing slashes and set the url
        url = url.replace(/\/+$/, '');
        // then replace collapse `/.` if found in the last URL path segment before the query
        // E.g. `http://url.com/id./format?q=x` becomes `http://url.com/id.format?q=x`
        url = url.replace(/\/\.(?=\w+($|\?))/, '.');
        // replace escaped `/\.` with `/.`
        config.url = url.replace(/\/\\\./, '/.');


        // set params - delegate param encoding to $http
        forEach(params, function(value, key){
          if (!self.urlParams[key]) {
            config.params = config.params || {};
            config.params[key] = value;
          }
        });
      }
    };


    function resourceFactory(url, paramDefaults, actions) {
      var route = new Route(url);

      actions = extend({}, DEFAULT_ACTIONS, actions);

      function extractParams(data, actionParams){
        var ids = {};
        actionParams = extend({}, paramDefaults, actionParams);
        forEach(actionParams, function(value, key){
          if (isFunction(value)) { value = value(); }
          ids[key] = value && value.charAt && value.charAt(0) == '@' ?
            lookupDottedPath(data, value.substr(1)) : value;
        });
        return ids;
      }

      function defaultResponseInterceptor(response) {
        return response.resource;
      }

      function Resource(value){
        shallowClearAndCopy(value || {}, this);
      }

      forEach(actions, function(action, name) {
        var hasBody = /^(POST|PUT|PATCH)$/i.test(action.method);

        Resource[name] = function(a1, a2, a3, a4) {
          var params = {}, data, success, error;

          /* jshint -W086 */ /* (purposefully fall through case statements) */
          switch(arguments.length) {
          case 4:
            error = a4;
            success = a3;
            //fallthrough
          case 3:
          case 2:
            if (isFunction(a2)) {
              if (isFunction(a1)) {
                success = a1;
                error = a2;
                break;
              }

              success = a2;
              error = a3;
              //fallthrough
            } else {
              params = a1;
              data = a2;
              success = a3;
              break;
            }
          case 1:
            if (isFunction(a1)) success = a1;
            else if (hasBody) data = a1;
            else params = a1;
            break;
          case 0: break;
          default:
            throw $resourceMinErr('badargs',
              "Expected up to 4 arguments [params, data, success, error], got {0} arguments",
              arguments.length);
          }
          /* jshint +W086 */ /* (purposefully fall through case statements) */

          var isInstanceCall = this instanceof Resource;
          var value = isInstanceCall ? data : (action.isArray ? [] : new Resource(data));
          var httpConfig = {};
          var responseInterceptor = action.interceptor && action.interceptor.response ||
                                    defaultResponseInterceptor;
          var responseErrorInterceptor = action.interceptor && action.interceptor.responseError ||
                                    undefined;

          forEach(action, function(value, key) {
            if (key != 'params' && key != 'isArray' && key != 'interceptor') {
              httpConfig[key] = copy(value);
            }
          });

          if (hasBody) httpConfig.data = data;
          route.setUrlParams(httpConfig,
                             extend({}, extractParams(data, action.params || {}), params),
                             action.url);

          var promise = $http(httpConfig).then(function(response) {
            var data = response.data,
                promise = value.$promise;

            if (data) {
              // Need to convert action.isArray to boolean in case it is undefined
              // jshint -W018
              if (angular.isArray(data) !== (!!action.isArray)) {
                throw $resourceMinErr('badcfg', 'Error in resource configuration. Expected ' +
                  'response to contain an {0} but got an {1}',
                  action.isArray?'array':'object', angular.isArray(data)?'array':'object');
              }
              // jshint +W018
              if (action.isArray) {
                value.length = 0;
                forEach(data, function(item) {
                  value.push(new Resource(item));
                });
              } else {
                shallowClearAndCopy(data, value);
                value.$promise = promise;
              }
            }

            value.$resolved = true;

            response.resource = value;

            return response;
          }, function(response) {
            value.$resolved = true;

            (error||noop)(response);

            return $q.reject(response);
          });

          promise = promise.then(
              function(response) {
                var value = responseInterceptor(response);
                (success||noop)(value, response.headers);
                return value;
              },
              responseErrorInterceptor);

          if (!isInstanceCall) {
            // we are creating instance / collection
            // - set the initial promise
            // - return the instance / collection
            value.$promise = promise;
            value.$resolved = false;

            return value;
          }

          // instance call
          return promise;
        };


        Resource.prototype['$' + name] = function(params, success, error) {
          if (isFunction(params)) {
            error = success; success = params; params = {};
          }
          var result = Resource[name].call(this, params, this, success, error);
          return result.$promise || result;
        };
      });