/*

 * jQuery UI Dialog 1.7

 *

 * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)

 * Dual licensed under the MIT (MIT-LICENSE.txt)

 * and GPL (GPL-LICENSE.txt) licenses.

 *

 * http://docs.jquery.com/UI/Dialog

 *

 * Depends:

 *	ui.core.js

 *	ui.draggable.js

 *	ui.resizable.js

 */

(function($) {



var setDataSwitch = {

		dragStart: "start.draggable",

		drag: "drag.draggable",

		dragStop: "stop.draggable",

		maxHeight: "maxHeight.resizable",

		minHeight: "minHeight.resizable",

		maxWidth: "maxWidth.resizable",

		minWidth: "minWidth.resizable",

		resizeStart: "start.resizable",

		resize: "drag.resizable",

		resizeStop: "stop.resizable"

	},

	

	uiDialogClasses =

		'ui-dialog ' +

		'ui-widget ' +

		'ui-widget-content ' +

		'ui-corner-all ';



$.widget("ui.dialog", {



	_init: function() {

		this.originalTitle = this.element.attr('title');



		var self = this,

			options = this.options,



			title = options.title || this.originalTitle || ' ',

			titleId = $.ui.dialog.getTitleId(this.element),



			uiDialog = (this.uiDialog = $('<div/>'))

				.appendTo(document.body)

				.hide()

				.addClass(uiDialogClasses + options.dialogClass)

				.css({

					position: 'absolute',

					overflow: 'hidden',

					zIndex: options.zIndex

				})

				// setting tabIndex makes the div focusable

				// setting outline to 0 prevents a border on focus in Mozilla

				.attr('tabIndex', -1).css('outline', 0).keydown(function(event) {

					(options.closeOnEscape && event.keyCode

						&& event.keyCode == $.ui.keyCode.ESCAPE && self.close(event));

				})

				.attr({

					role: 'dialog',

					'aria-labelledby': titleId

				})

				.mousedown(function(event) {

					self.moveToTop(false, event);

				}),



			uiDialogContent = this.element

				.show()

				.removeAttr('title')

				.addClass(

					'ui-dialog-content ' +

					'ui-widget-content')

				.appendTo(uiDialog),



			uiDialogTitlebar = (this.uiDialogTitlebar = $('<div></div>'))

				.addClass(

					'ui-dialog-titlebar ' +

					'ui-widget-header ' +

					'ui-corner-all ' +

					'ui-helper-clearfix'

				)

				.prependTo(uiDialog),



			uiDialogTitlebarClose = $('<a href="#"/>')

				.addClass(

					'ui-dialog-titlebar-close ' +

					'ui-corner-all'

				)

				.attr('role', 'button')

				.hover(

					function() {

						uiDialogTitlebarClose.addClass('ui-state-hover');

					},

					function() {

						uiDialogTitlebarClose.removeClass('ui-state-hover');

					}

				)

				.focus(function() {

					uiDialogTitlebarClose.addClass('ui-state-focus');

				})

				.blur(function() {

					uiDialogTitlebarClose.removeClass('ui-state-focus');

				})

				.mousedown(function(ev) {

					ev.stopPropagation();

				})

				.click(function(event) {

					self.close(event);

					return false;

				})

				.appendTo(uiDialogTitlebar),



			uiDialogTitlebarCloseText = (this.uiDialogTitlebarCloseText = $('<span/>'))

				.addClass(

					'ui-icon ' +

					'ui-icon-closethick'

				)

				.text(options.closeText)

				.appendTo(uiDialogTitlebarClose),



			uiDialogTitle = $('<span/>')

				.addClass('ui-dialog-title')

				.attr('id', titleId)

				.html(title)

				.prependTo(uiDialogTitlebar);



		uiDialogTitlebar.find("*").add(uiDialogTitlebar).disableSelection();



		(options.draggable && $.fn.draggable && this._makeDraggable());

		(options.resizable && $.fn.resizable && this._makeResizable());



		this._createButtons(options.buttons);

		this._isOpen = false;



		(options.bgiframe && $.fn.bgiframe && uiDialog.bgiframe());

		(options.autoOpen && this.open());

		

	},



	destroy: function() {

		(this.overlay && this.overlay.destroy());

		this.uiDialog.hide();

		this.element

			.unbind('.dialog')

			.removeData('dialog')

			.removeClass('ui-dialog-content ui-widget-content')

			.hide().appendTo('body');

		this.uiDialog.remove();



		(this.originalTitle && this.element.attr('title', this.originalTitle));

	},



	close: function(event) {

		var self = this;

		

		if (false === self._trigger('beforeclose', event)) {

			return;

		}



		(self.overlay && self.overlay.destroy());

		self.uiDialog.unbind('keypress.ui-dialog');



		(self.options.hide

			? self.uiDialog.hide(self.options.hide, function() {

				self._trigger('close', event);

			})

			: self.uiDialog.hide() && self._trigger('close', event));



		$.ui.dialog.overlay.resize();



		self._isOpen = false;

	},



	isOpen: function() {

		return this._isOpen;

	},



	// the force parameter allows us to move modal dialogs to their correct

	// position on open

	moveToTop: function(force, event) {



		if ((this.options.modal && !force)

			|| (!this.options.stack && !this.options.modal)) {

			return this._trigger('focus', event);

		}

		

		if (this.options.zIndex > $.ui.dialog.maxZ) {

			$.ui.dialog.maxZ = this.options.zIndex;

		}

		(this.overlay && this.overlay.$el.css('z-index', $.ui.dialog.overlay.maxZ = ++$.ui.dialog.maxZ));



		//Save and then restore scroll since Opera 9.5+ resets when parent z-Index is changed.

		//  http://ui.jquery.com/bugs/ticket/3193

		var saveScroll = { scrollTop: this.element.attr('scrollTop'), scrollLeft: this.element.attr('scrollLeft') };

		this.uiDialog.css('z-index', ++$.ui.dialog.maxZ);

		this.element.attr(saveScroll);

		this._trigger('focus', event);

	},



	open: function() {

		if (this._isOpen) { return; }



		var options = this.options,

			uiDialog = this.uiDialog;



		this.overlay = options.modal ? new $.ui.dialog.overlay(this) : null;

		(uiDialog.next().length && uiDialog.appendTo('body'));

		this._size();

		this._position(options.position);

		uiDialog.show(options.show);

		this.moveToTop(true);



		// prevent tabbing out of modal dialogs

		(options.modal && uiDialog.bind('keypress.ui-dialog', function(event) {

			if (event.keyCode != $.ui.keyCode.TAB) {

				return;

			}



			var tabbables = $(':tabbable', this),

				first = tabbables.filter(':first')[0],

				last  = tabbables.filter(':last')[0];



			if (event.target == last && !event.shiftKey) {

				setTimeout(function() {

					first.focus();

				}, 1);

			} else if (event.target == first && event.shiftKey) {

				setTimeout(function() {

					last.focus();

				}, 1);

			}

		}));



		// set focus to the first tabbable element in the content area or the first button

		// if there are no tabbable elements, set focus on the dialog itself

		$([])

			.add(uiDialog.find('.ui-dialog-content :tabbable:first'))

			.add(uiDialog.find('.ui-dialog-buttonpane :tabbable:first'))

			.add(uiDialog)

			.filter(':first')

			.focus();



		this._trigger('open');

		this._isOpen = true;

	},



	_createButtons: function(buttons) {

		var self = this,

			hasButtons = false,

			uiDialogButtonPane = $('<div></div>')

				.addClass(

					'ui-dialog-buttonpane ' +

					'ui-widget-content ' +

					'ui-helper-clearfix'

				);



		// if we already have a button pane, remove it

		this.uiDialog.find('.ui-dialog-buttonpane').remove();



		(typeof buttons == 'object' && buttons !== null &&

			$.each(buttons, function() { return !(hasButtons = true); }));

		if (hasButtons) {

			$.each(buttons, function(name, fn) {

				$('<button type="button"></button>')

					.addClass(

						'ui-state-default ' +

						'ui-corner-all'

					)

					.text(name)

					.click(function() { fn.apply(self.element[0], arguments); })

					.hover(

						function() {

							$(this).addClass('ui-state-hover');

						},

						function() {

							$(this).removeClass('ui-state-hover');

						}

					)

					.focus(function() {

						$(this).addClass('ui-state-focus');

					})

					.blur(function() {

						$(this).removeClass('ui-state-focus');

					})

					.appendTo(uiDialogButtonPane);

			});

			uiDialogButtonPane.appendTo(this.uiDialog);

		}

	},



	_makeDraggable: function() {

		var self = this,

			options = this.options,

			heightBeforeDrag;



		this.uiDialog.draggable({

			cancel: '.ui-dialog-content',

			handle: '.ui-dialog-titlebar',

			containment: 'document',

			start: function() {

				heightBeforeDrag = options.height;

				$(this).height($(this).height()).addClass("ui-dialog-dragging");

				(options.dragStart && options.dragStart.apply(self.element[0], arguments));

			},

			drag: function() {

				(options.drag && options.drag.apply(self.element[0], arguments));

			},

			stop: function() {

				$(this).removeClass("ui-dialog-dragging").height(heightBeforeDrag);

				(options.dragStop && options.dragStop.apply(self.element[0], arguments));

				$.ui.dialog.overlay.resize();

			}

		});

	},



	_makeResizable: function(handles) {

		handles = (handles === undefined ? this.options.resizable : handles);

		var self = this,

			options = this.options,

			resizeHandles = typeof handles == 'string'

				? handles

				: 'n,e,s,w,se,sw,ne,nw';



		this.uiDialog.resizable({

			cancel: '.ui-dialog-content',

			alsoResize: this.element,

			maxWidth: options.maxWidth,

			maxHeight: options.maxHeight,

			minWidth: options.minWidth,

			minHeight: options.minHeight,

			start: function() {

				$(this).addClass("ui-dialog-resizing");

				(options.resizeStart && options.resizeStart.apply(self.element[0], arguments));

			},

			resize: function() {

				(options.resize && options.resize.apply(self.element[0], arguments));

			},

			handles: resizeHandles,

			stop: function() {

				$(this).removeClass("ui-dialog-resizing");

				options.height = $(this).height();

				options.width = $(this).width();

				(options.resizeStop && options.resizeStop.apply(self.element[0], arguments));

				$.ui.dialog.overlay.resize();

			}

		})

		.find('.ui-resizable-se').addClass('ui-icon ui-icon-grip-diagonal-se');

	},



	_position: function(pos) {

		var wnd = $(window), doc = $(document),

			pTop = doc.scrollTop(), pLeft = doc.scrollLeft(),

			minTop = pTop;



		if ($.inArray(pos, ['center','top','right','bottom','left']) >= 0) {

			pos = [

				pos == 'right' || pos == 'left' ? pos : 'center',

				pos == 'top' || pos == 'bottom' ? pos : 'middle'

			];

		}

		if (pos.constructor != Array) {

			pos = ['center', 'middle'];

		}

		if (pos[0].constructor == Number) {

			pLeft += pos[0];

		} else {

			switch (pos[0]) {

				case 'left':

					pLeft += 0;

					break;

				case 'right':

					pLeft += wnd.width() - this.uiDialog.outerWidth();

					break;

				default:

				case 'center':

					pLeft += (wnd.width() - this.uiDialog.outerWidth()) / 2;

			}

		}

		if (pos[1].constructor == Number) {

			pTop += pos[1];

		} else {

			switch (pos[1]) {

				case 'top':

					pTop += 0;

					break;

				case 'bottom':

					pTop += wnd.height() - this.uiDialog.outerHeight();

					break;

				default:

				case 'middle':

					pTop += (wnd.height() - this.uiDialog.outerHeight()) / 2;

			}

		}



		// prevent the dialog from being too high (make sure the titlebar

		// is accessible)

		pTop = Math.max(pTop, minTop);

		this.uiDialog.css({top: pTop, left: pLeft});

	},



	_setData: function(key, value){

		(setDataSwitch[key] && this.uiDialog.data(setDataSwitch[key], value));

		switch (key) {

			case "buttons":

				this._createButtons(value);

				break;

			case "closeText":

				this.uiDialogTitlebarCloseText.text(value);

				break;

			case "dialogClass":

				this.uiDialog

					.removeClass(this.options.dialogClass)

					.addClass(uiDialogClasses + value);

				break;

			case "draggable":

				(value

					? this._makeDraggable()

					: this.uiDialog.draggable('destroy'));

				break;

			case "height":

				this.uiDialog.height(value);

				break;

			case "position":

				this._position(value);

				break;

			case "resizable":

				var uiDialog = this.uiDialog,

					isResizable = this.uiDialog.is(':data(resizable)');



				// currently resizable, becoming non-resizable

				(isResizable && !value && uiDialog.resizable('destroy'));



				// currently resizable, changing handles

				(isResizable && typeof value == 'string' &&

					uiDialog.resizable('option', 'handles', value));



				// currently non-resizable, becoming resizable

				(isResizable || this._makeResizable(value));

				break;

			case "title":

				$(".ui-dialog-title", this.uiDialogTitlebar).html(value || '&nbsp;');

				break;

			case "width":

				this.uiDialog.width(value);

				break;

		}



		$.widget.prototype._setData.apply(this, arguments);

	},



	_size: function() {

		/* If the user has resized the dialog, the .ui-dialog and .ui-dialog-content

		 * divs will both have width and height set, so we need to reset them

		 */

		var options = this.options;



		// reset content sizing

		this.element.css({

			height: 0,

			minHeight: 0,

			width: 'auto'

		});



		// reset wrapper sizing

		// determine the height of all the non-content elements

		var nonContentHeight = this.uiDialog.css({

				height: 'auto',

				width: options.width

			})

			.height();



		this.element

			.css({

				minHeight: Math.max(options.minHeight - nonContentHeight, 0),

				height: options.height == 'auto'

					? 'auto'

					: Math.max(options.height - nonContentHeight, 0)

			});

	}

});



$.extend($.ui.dialog, {

	version: "1.7",

	defaults: {

		autoOpen: true,

		bgiframe: false,

		buttons: {},

		closeOnEscape: true,

		closeText: 'close',

		dialogClass: '',

		draggable: true,

		hide: null,

		height: 'auto',

		maxHeight: false,

		maxWidth: false,

		minHeight: 150,

		minWidth: 150,

		modal: false,

		position: 'center',

		resizable: true,

		show: null,

		stack: true,

		title: '',

		width: 300,

		zIndex: 1000

	},



	getter: 'isOpen',



	uuid: 0,

	maxZ: 0,



	getTitleId: function($el) {

		return 'ui-dialog-title-' + ($el.attr('id') || ++this.uuid);

	},



	overlay: function(dialog) {

		this.$el = $.ui.dialog.overlay.create(dialog);

	}

});



$.extend($.ui.dialog.overlay, {

	instances: [],

	maxZ: 0,

	events: $.map('focus,mousedown,mouseup,keydown,keypress,click'.split(','),

		function(event) { return event + '.dialog-overlay'; }).join(' '),

	create: function(dialog) {

		if (this.instances.length === 0) {

			// prevent use of anchors and inputs

			// we use a setTimeout in case the overlay is created from an

			// event that we're going to be cancelling (see #2804)

			setTimeout(function() {

				$(document).bind($.ui.dialog.overlay.events, function(event) {

					var dialogZ = $(event.target).parents('.ui-dialog').css('zIndex') || 0;

					return (dialogZ > $.ui.dialog.overlay.maxZ);

				});

			}, 1);



			// allow closing by pressing the escape key

			$(document).bind('keydown.dialog-overlay', function(event) {

				(dialog.options.closeOnEscape && event.keyCode

						&& event.keyCode == $.ui.keyCode.ESCAPE && dialog.close(event));

			});



			// handle window resize

			$(window).bind('resize.dialog-overlay', $.ui.dialog.overlay.resize);

		}



		var $el = $('<div></div>').appendTo(document.body)

			.addClass('ui-widget-overlay').css({

				width: this.width(),

				height: this.height()

			});



		(dialog.options.bgiframe && $.fn.bgiframe && $el.bgiframe());



		this.instances.push($el);

		return $el;

	},



	destroy: function($el) {

		this.instances.splice($.inArray(this.instances, $el), 1);



		if (this.instances.length === 0) {

			$([document, window]).unbind('.dialog-overlay');

		}



		$el.remove();

	},



	height: function() {

		// handle IE 6

		if ($.browser.msie && $.browser.version < 7) {

			var scrollHeight = Math.max(

				document.documentElement.scrollHeight,

				document.body.scrollHeight

			);

			var offsetHeight = Math.max(

				document.documentElement.offsetHeight,

				document.body.offsetHeight

			);



			if (scrollHeight < offsetHeight) {

				return $(window).height() + 'px';

			} else {

				return scrollHeight + 'px';

			}

		// handle "good" browsers

		} else {

			return $(document).height() + 'px';

		}

	},



	width: function() {

		// handle IE 6

		if ($.browser.msie && $.browser.version < 7) {

			var scrollWidth = Math.max(

				document.documentElement.scrollWidth,

				document.body.scrollWidth

			);

			var offsetWidth = Math.max(

				document.documentElement.offsetWidth,

				document.body.offsetWidth

			);



			if (scrollWidth < offsetWidth) {

				return $(window).width() + 'px';

			} else {

				return scrollWidth + 'px';

			}

		// handle "good" browsers

		} else {

			return $(document).width() + 'px';

		}

	},



	resize: function() {

		/* If the dialog is draggable and the user drags it past the

		 * right edge of the window, the document becomes wider so we

		 * need to stretch the overlay. If the user then drags the

		 * dialog back to the left, the document will become narrower,

		 * so we need to shrink the overlay to the appropriate size.

		 * This is handled by shrinking the overlay before setting it

		 * to the full document size.

		 */

		var $overlays = $([]);

		$.each($.ui.dialog.overlay.instances, function() {

			$overlays = $overlays.add(this);

		});



		$overlays.css({

			width: 0,

			height: 0

		}).css({

			width: $.ui.dialog.overlay.width(),

			height: $.ui.dialog.overlay.height()

		});

	}

});



$.extend($.ui.dialog.overlay.prototype, {

	destroy: function() {

		$.ui.dialog.overlay.destroy(this.$el);

	}

});



})(jQuery);