8c6972bb06
git-svn-id: http://svn.openlayers.org/trunk/openlayers@893 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
137 lines
4.0 KiB
JavaScript
137 lines
4.0 KiB
JavaScript
/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
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* See http://svn.openlayers.org/trunk/openlayers/license.txt for the full
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* text of the license. */
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// @require: OpenLayers/Layer.js
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// @require: OpenLayers/Util.js
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/**
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* @class
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*/
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OpenLayers.Layer.HTTPRequest = Class.create();
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OpenLayers.Layer.HTTPRequest.prototype =
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Object.extend( new OpenLayers.Layer(), {
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/** @type String */
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url: null,
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/** @type Hash */
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params: null,
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/**
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* @constructor
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*
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* @param {str} name
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* @param {str} url
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* @param {hash} params
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* @param {Object} options Hash of extra options to tag onto the layer
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*/
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initialize: function(name, url, params, options) {
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var newArguments = arguments;
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if (arguments.length > 0) {
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newArguments = [name, options];
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}
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OpenLayers.Layer.prototype.initialize.apply(this, newArguments);
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this.url = url;
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this.params = Object.extend( new Object(), params);
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},
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/**
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*
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*/
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destroy: function() {
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this.url = null;
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this.params = null;
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OpenLayers.Layer.prototype.destroy.apply(this, arguments);
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},
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/**
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* @param {Object} obj
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*
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* @returns An exact clone of this OpenLayers.Layer.HTTPRequest
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* @type OpenLayers.Layer.HTTPRequest
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*/
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clone: function (obj) {
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if (obj == null) {
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obj = new OpenLayers.Layer.HTTPRequest(this.name,
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this.url,
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this.params,
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this.options);
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}
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//set any non-init vars here
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//get all additions from superclasses
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return OpenLayers.Layer.prototype.clone.apply(this, [obj]);
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},
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/**
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* @param {String} newUrl
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*/
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setUrl: function(newUrl) {
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this.url = newUrl;
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},
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/** Deprecated wrapper for mergeNewParams() just so as to not break
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* anyone's code who might be using this
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*
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* @deprecated
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* @param {Object} newParams
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*/
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changeParams:function(newParams) {
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this.mergeNewParams(newParams);
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},
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/**
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* @param {Object} newParams
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*/
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mergeNewParams:function(newParams) {
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this.params = Object.extend(this.params, newParams);
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},
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/** combine the layer's url with its params and these newParams.
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*
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* does checking on the serverPath variable, allowing for cases when it
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* is supplied with trailing ? or &, as well as cases where not.
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*
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* return in formatted string like this:
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* "server?key1=value1&key2=value2&key3=value3"
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*
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* @param {Object} newParams
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*
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* @type String
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*/
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getFullRequestString:function(newParams) {
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//requestString always starts with url
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var requestString = this.url;
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// create a new params hash with all the layer params and the
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// new params together. then convert to string
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var allParams = Object.extend(new Object(), this.params);
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var allParams = Object.extend(allParams, newParams);
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var paramsString = OpenLayers.Util.getParameterString(allParams);
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if (paramsString != "") {
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var lastServerChar = this.url.charAt(this.url.length - 1);
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if ((lastServerChar == "&") || (lastServerChar == "?")) {
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requestString += paramsString;
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} else {
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if (this.url.indexOf('?') == -1) {
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//serverPath has no ? -- add one
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requestString += '?' + paramsString;
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} else {
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//serverPath contains ?, so must already have paramsString at the end
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requestString += '&' + paramsString;
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}
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}
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}
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return requestString;
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},
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/** @final @type String */
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CLASS_NAME: "OpenLayers.Layer.HTTPRequest"
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});
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