var autosave, autosaveLast = '', autosavePeriodical, autosaveOldMessage = '', autosaveDelayPreview = false, notSaved = true;

jQuery(document).ready( function($) {

	var dotabkey = true;

	autosaveLast = $('#post #title').val() + $('#post #content').val();

	autosavePeriodical = $.schedule({time: autosaveL10n.autosaveInterval * 1000, func: function() { autosave(); }, repeat: true, protect: true});

	//Disable autosave after the form has been submitted

	$("#post").submit(function() { $.cancel(autosavePeriodical); });

	$('.submitbox input[type="submit"], .submitbox a.submitdelete').click(function(){window.onbeforeunload = null;});

	window.onbeforeunload = function(){

		var mce = typeof(tinyMCE) != 'undefined' ? tinyMCE.activeEditor : false, title, content;

		if ( mce && !mce.isHidden() ) {

			if ( mce.isDirty() )

				return autosaveL10n.saveAlert;

		} else {

			title = $('#post #title').val(), content = $('#post #content').val();

			if ( ( title || content ) && title + content != autosaveLast )

				return autosaveL10n.saveAlert;

		}

	};

	// preview

	$('#post-preview').click(function(){

		if ( 1 > $('#post_ID').val() && notSaved ) {

			autosaveDelayPreview = true;

			autosave();

			return false;

		}

		doPreview();

		return false;

	});

	doPreview = function() {

		$('input#wp-preview').val('dopreview');

		$('form#post').attr('target', 'wp-preview').submit().attr('target', '');

		$('input#wp-preview').val('');

	}

	//  This code is meant to allow tabbing from Title to Post if tinyMCE is defined.

	if ( typeof tinyMCE != 'undefined' ) {

		$('#title')[$.browser.opera ? 'keypress' : 'keydown'](function (e) {

			if ( e.which == 9 && !e.shiftKey && !e.controlKey && !e.altKey ) {

				if ( ($("#post_ID").val() < 1) && ($("#title").val().length > 0) ) { autosave(); }

				if ( tinyMCE.activeEditor && ! tinyMCE.activeEditor.isHidden() && dotabkey ) {

					e.preventDefault();

					dotabkey = false;

					tinyMCE.activeEditor.focus();

					return false;

				}

			}

		});

	}

});

function autosave_parse_response(response) {

	var res = wpAjax.parseAjaxResponse(response, 'autosave'), message = '', postID;

	if ( res && res.responses && res.responses.length ) {

		message = res.responses[0].data; // The saved message or error.

		// someone else is editing: disable autosave, set errors

		if ( res.responses[0].supplemental ) {

			if ( 'disable' == res.responses[0].supplemental['disable_autosave'] ) {

				autosave = function() {};

				res = { errors: true };

			}

			jQuery.each(res.responses[0].supplemental, function(selector, value) {

				if ( selector.match(/^replace-/) ) {

					jQuery('#'+selector.replace('replace-', '')).val(value);

				}

			});

		}

		// if no errors: add slug UI

		if ( !res.errors ) {

			postID = parseInt( res.responses[0].id, 10 );

			if ( !isNaN(postID) && postID > 0 ) {

				autosave_update_slug(postID);

			}

		}

	}

	if ( message ) { jQuery('#autosave').html(message); } // update autosave message

	else if ( autosaveOldMessage && res ) { jQuery('#autosave').html( autosaveOldMessage ); }

	return res;

}

// called when autosaving pre-existing post

function autosave_saved(response) {

	autosave_parse_response(response); // parse the ajax response

	autosave_enable_buttons(); // re-enable disabled form buttons

}

// called when autosaving new post

function autosave_saved_new(response) {

	var res = autosave_parse_response(response), tempID, postID;

	// if no errors: update post_ID from the temporary value, grab new save-nonce for that new ID

	if ( res && res.responses.length && !res.errors ) {

		tempID = jQuery('#post_ID').val();

		postID = parseInt( res.responses[0].id, 10 );

		autosave_update_post_ID( postID ); // disabled form buttons are re-enabled here

		if ( tempID < 0 && postID > 0 ) { // update media buttons

			notSaved = false;

			jQuery('#media-buttons a').each(function(){

				this.href = this.href.replace(tempID, postID);

			});

		}

		if ( autosaveDelayPreview ) {

			autosaveDelayPreview = false;

			doPreview();

		}

	} else {

		autosave_enable_buttons(); // re-enable disabled form buttons

	}

}

function autosave_update_post_ID( postID ) {

	if ( !isNaN(postID) && postID > 0 ) {

		if ( postID == parseInt(jQuery('#post_ID').val(), 10) ) { return; } // no need to do this more than once

		jQuery('#post_ID').attr({name: "post_ID"});

		jQuery('#post_ID').val(postID);

		// We need new nonces

		jQuery.post(autosaveL10n.requestFile, {

			action: "autosave-generate-nonces",

			post_ID: postID,

			autosavenonce: jQuery('#autosavenonce').val(),

			post_type: jQuery('#post_type').val()

		}, function(html) {

			jQuery('#_wpnonce').val(html);

			autosave_enable_buttons(); // re-enable disabled form buttons

		});

		jQuery('#hiddenaction').val('editpost');

	}

}

function autosave_update_slug(post_id) {

	// create slug area only if not already there

	if ( jQuery.isFunction(make_slugedit_clickable) && !jQuery('#edit-slug-box > *').size() ) {

		jQuery.post(

			slugL10n.requestFile,

			{

				action: 'sample-permalink',

				post_id: post_id,

				new_title: jQuery('#title').val(),

				samplepermalinknonce: jQuery('#samplepermalinknonce').val()

			},

			function(data) {

				jQuery('#edit-slug-box').html(data);

				make_slugedit_clickable();

			}

		);

	}

}

function autosave_loading() {

	jQuery('#autosave').html(autosaveL10n.savingText);

}

function autosave_enable_buttons() {

	jQuery(".submitbox :button:disabled, .submitbox :submit:disabled").attr('disabled', '');

}

function autosave_disable_buttons() {

	jQuery(".submitbox :button:enabled, .submitbox :submit:enabled").attr('disabled', 'disabled');

	// Re-enable 5 sec later.  Just gives autosave a head start to avoid collisions.

	setTimeout(autosave_enable_buttons, 5000);

}

autosave = function() {

	// (bool) is rich editor enabled and active

	var rich = (typeof tinyMCE != "undefined") && tinyMCE.activeEditor && !tinyMCE.activeEditor.isHidden(), post_data, doAutoSave, ed, origStatus, successCallback;

	post_data = {

		action: "autosave",

		post_ID:  jQuery("#post_ID").val() || 0,

		post_title: jQuery("#title").val() || "",

		autosavenonce: jQuery('#autosavenonce').val(),

		//tags_input: jQuery("#tags-input").val() || "",

		post_type: jQuery('#post_type').val() || "",

		autosave: 1

	};

	jQuery('.tags-input').each( function() {

		post_data[this.name] = this.value;

	} );

	// We always send the ajax request in order to keep the post lock fresh.

	// This (bool) tells whether or not to write the post to the DB during the ajax request.

	doAutoSave = true;

	// No autosave while thickbox is open (media buttons)

	if ( jQuery("#TB_window").css('display') == 'block' )

		doAutoSave = false;

	/* Gotta do this up here so we can check the length when tinyMCE is in use */

	if ( rich ) {

		ed = tinyMCE.activeEditor;

		if ( 'mce_fullscreen' == ed.id )

			tinyMCE.get('content').setContent(ed.getContent({format : 'raw'}), {format : 'raw'});

		tinyMCE.get('content').save();

	}

	post_data["content"] = jQuery("#content").val();

	if ( jQuery('#post_name').val() )

		post_data["post_name"] = jQuery('#post_name').val();

	// Nothing to save or no change.

	if( ( post_data["post_title"].length == 0 && post_data["content"].length == 0 ) || post_data["post_title"] + post_data["content"] == autosaveLast) {

		doAutoSave = false;

	}

	autosave_disable_buttons();

	origStatus = jQuery('#original_post_status').val();

	autosaveLast = jQuery("#title").val()+jQuery("#content").val();

	goodcats = ([]);

	jQuery("[name='post_category[]']:checked").each( function(i) {

		goodcats.push(this.value);

	} );

	post_data["catslist"] = goodcats.join(",");

	if ( jQuery("#comment_status").attr("checked") )

		post_data["comment_status"] = 'open';

	if ( jQuery("#ping_status").attr("checked") )

		post_data["ping_status"] = 'open';

	if ( jQuery("#excerpt").size() )

		post_data["excerpt"] = jQuery("#excerpt").val();

	if ( jQuery("#post_author").size() )

		post_data["post_author"] = jQuery("#post_author").val();

	post_data["user_ID"] = jQuery("#user-id").val();

	// Don't run while the TinyMCE spellcheck is on. It resets all found words.

	if ( rich && tinyMCE.activeEditor.plugins.spellchecker && tinyMCE.activeEditor.plugins.spellchecker.active ) {

		doAutoSave = false;

	}

	if ( parseInt(post_data["post_ID"], 10) < 1 ) {

		post_data["temp_ID"] = post_data["post_ID"];

		successCallback = autosave_saved_new; // new post

	} else {

		successCallback = autosave_saved; // pre-existing post

	}

	if ( !doAutoSave ) {

		post_data['autosave'] = 0;

	}

	autosaveOldMessage = jQuery('#autosave').html();

	jQuery.ajax({

		data: post_data,

		beforeSend: doAutoSave ? autosave_loading : null,

		type: "POST",

		url: autosaveL10n.requestFile,

		success: successCallback

	});

}