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public/tinymce/classes/util/JSONRequest.js

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+/**
+ * JSONRequest.js
+ *
+ * Copyright, Moxiecode Systems AB
+ * Released under LGPL License.
+ *
+ * License: http://www.tinymce.com/license
+ * Contributing: http://www.tinymce.com/contributing
+ */
+
+/**
+ * This class enables you to use JSON-RPC to call backend methods.
+ *
+ * @class tinymce.util.JSONRequest
+ * @example
+ * var json = new tinymce.util.JSONRequest({
+ *     url: 'somebackend.php'
+ * });
+ *
+ * // Send RPC call 1
+ * json.send({
+ *     method: 'someMethod1',
+ *     params: ['a', 'b'],
+ *     success: function(result) {
+ *         console.dir(result);
+ *     }
+ * });
+ *
+ * // Send RPC call 2
+ * json.send({
+ *     method: 'someMethod2',
+ *     params: ['a', 'b'],
+ *     success: function(result) {
+ *         console.dir(result);
+ *     }
+ * });
+ */
+define("tinymce/util/JSONRequest", [
+	"tinymce/util/JSON",
+	"tinymce/util/XHR",
+	"tinymce/util/Tools"
+], function(JSON, XHR, Tools) {
+	var extend = Tools.extend;
+
+	function JSONRequest(settings) {
+		this.settings = extend({}, settings);
+		this.count = 0;
+	}
+
+	/**
+	 * Simple helper function to send a JSON-RPC request without the need to initialize an object.
+	 * Consult the Wiki API documentation for more details on what you can pass to this function.
+	 *
+	 * @method sendRPC
+	 * @static
+	 * @param {Object} o Call object where there are three field id, method and params this object should also contain callbacks etc.
+	 */
+	JSONRequest.sendRPC = function(o) {
+		return new JSONRequest().send(o);
+	};
+
+	JSONRequest.prototype = {
+		/**
+		 * Sends a JSON-RPC call. Consult the Wiki API documentation for more details on what you can pass to this function.
+		 *
+		 * @method send
+		 * @param {Object} args Call object where there are three field id, method and params this object should also contain callbacks etc.
+		 */
+		send: function(args) {
+			var ecb = args.error, scb = args.success;
+
+			args = extend(this.settings, args);
+
+			args.success = function(c, x) {
+				c = JSON.parse(c);
+
+				if (typeof(c) == 'undefined') {
+					c = {
+						error : 'JSON Parse error.'
+					};
+				}
+
+				if (c.error) {
+					ecb.call(args.error_scope || args.scope, c.error, x);
+				} else {
+					scb.call(args.success_scope || args.scope, c.result);
+				}
+			};
+
+			args.error = function(ty, x) {
+				if (ecb) {
+					ecb.call(args.error_scope || args.scope, ty, x);
+				}
+			};
+
+			args.data = JSON.serialize({
+				id: args.id || 'c' + (this.count++),
+				method: args.method,
+				params: args.params
+			});
+
+			// JSON content type for Ruby on rails. Bug: #1883287
+			args.content_type = 'application/json';
+
+			XHR.send(args);
+		}
+	};
+
+	return JSONRequest;
+});