WP Merge to rev #4191

git-svn-id: http://svn.automattic.com/wordpress-mu/trunk@753 7be80a69-a1ef-0310-a953-fb0f7c49ff36

1 files changed, 93 insertions, 0 deletions

diff --git a/wp-includes/js/wp-ajax-js.php b/wp-includes/js/wp-ajax-js.php
new file mode 100644
index 0000000..e56cba9
--- /dev/null
+++ b/wp-includes/js/wp-ajax-js.php
@@ -0,0 +1,93 @@
+<?php @require_once('../../wp-config.php'); cache_javascript_headers(); ?>
+var WPAjax = Class.create();
+Object.extend(WPAjax.prototype, Ajax.Request.prototype);
+Object.extend(WPAjax.prototype, {
+	WPComplete: false, // onComplete function
+	WPError: false, // onWPError function
+	initialize: function(url, responseEl) {
+		var tempObj = this;
+		this.transport = Ajax.getTransport();
+		if ( !this.transport )
+			return false;
+		this.setOptions( {
+			parameters: 'cookie=' + encodeURIComponent(document.cookie),
+			onComplete: function(transport) { // transport = XMLHttpRequest object
+				if ( tempObj.parseAjaxResponse() ) {
+					if ( 'function' == typeof tempObj.WPComplete )
+						tempObj.WPComplete(transport);
+				} else if ( 'function' == typeof tempObj.WPError ) // if response corresponds to an error (bad data, say, not 404)
+					tempObj.WPError(transport);
+			}
+		});
+		this.url = url;
+		this.getResponseElement(responseEl);
+	},
+	addArg: function(key, value) {
+		var a = $H(this.options.parameters.parseQuery());
+		a[encodeURIComponent(key)] = encodeURIComponent(value);
+		this.options.parameters = a.map(function(pair) {
+			return pair.join('=');
+		}).join('&');
+	},
+	getResponseElement: function(r) {
+		var p = $(r + '-p');
+		if ( !p ) {
+			new Insertion.Bottom(r, "<span id='" + r + "-p'></span>");
+			var p = $(r + '-p');
+		}
+		this.myResponseElement = p;
+	},
+	parseAjaxResponse: function() { // 1 = good, 0 = strange (bad data?), -1 = you lack permission
+		if ( this.transport.responseXML && typeof this.transport.responseXML == 'object' ) {
+			var err = this.transport.responseXML.getElementsByTagName('wp_error');
+			if ( err[0] ) {
+				var msg = $A(err).inject( '', function(a, b) { return a + '<p>' + b.firstChild.nodeValue + '</p>'; } );
+				this.myResponseElement.update('<div class="error">' + msg + '</div>');
+				return false;
+			}
+			return true;
+		}
+		var r = this.transport.responseText;
+		if ( isNaN(r) ) {
+			this.myResponseElement.update('<div class="error"><p>' + r + '</p></div>');
+			return false;
+		}
+		var r = parseInt(r,10);
+		if ( -1 == r ) {
+			this.myResponseElement.update("<div class='error'><p><?php _e("You don't have permission to do that."); ?></p></div>");
+			return false;
+		} else if ( 0 == r ) {
+			this.myResponseElement.update("<div class='error'><p><?php _e("Something strange happened.  Try refreshing the page."); ?></p></div>");
+			return false;
+		}
+		return true;
+	},
+	addOnComplete: function(f) {
+		if ( 'function' == typeof f ) { var of = this.WPComplete; this.WPComplete = function(t) { if ( of ) of(t); f(t); } }
+	},
+	addOnWPError: function(f) {
+		if ( 'function' == typeof f ) { var of = this.WPError; this.WPError = function(t) { if ( of ) of(t); f(t); } }
+	},
+	notInitialized: function() {
+		return this.transport ? false : true;
+	}
+});
+
+Ajax.activeSendCount = 0;
+Ajax.Responders.register( {
+	onCreate: function() {
+		Ajax.activeSendCount++;
+		if ( 1 != Ajax.activeSendCount )
+			return;
+		wpBeforeUnload = window.onbeforeunload;
+		window.onbeforeunload = function() {
+			return "<?php _e("Slow down, I'm still sending your data!"); ?>";
+		}
+	},
+	onLoading: function() { // Can switch to onLoaded if we lose data
+		Ajax.activeSendCount--;
+		if ( 0 != Ajax.activeSendCount )
+			return;
+		window.onbeforeunload = wpBeforeUnload;
+	}
+});