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/**
 * v1.0.4 - 05-04-2021 20:10
 *
 * JQuery UI Dialog Extended
 *
 * Copyright 2013-2015, Felix Nagel (http://www.felixnagel.com)
 * Copyright 2021, Team Updraft
 * Dual licensed under the MIT or GPL Version 2 licenses.
 *
 * http://github.com/fnagel/jquery-ui-extensions
 *
 * Depends:
 *	jquery.ui.core.js
 *	jquery.ui.widget.js
 *	jquery.ui.dialog.js
 *
 * Changes:
 *  Add "updraft-dialog" class for every jQuery UI dialog created by UpdraftPlus plugin.
 *  Wrap all "updraft-dialog" class with "updraft-container" class
 *   to prevent CSS conflict with other plugins that use jQuery UI too.
 */
(function( $ ) {

/*
 * Option width and height normally set the overall dialog dimensions.
 * This extensions make these options the dimensions of the content pane if
 * option useContentSize is enabled. This way it's possible to set the real
 * content dimensions.
 *
 * Please note you won't get the original size but the calculated overall size
 * when using the width and height option getter.
 */
$.widget("ui.dialog", $.ui.dialog, {
	options: {
		height: 200, // auto is not allowed when using animation

closeModalOnClick: true,
		dialogClass: 'updraft-dialog',

// viewport settings
		forceFullscreen: false,
		resizeOnWindowResize: false,
		scrollWithViewport: false,
		resizeAccordingToViewport: true,
		resizeToBestPossibleSize: false,

// width and height set the content size, not overall size
		useContentSize: false,

// animated options
		useAnimation: true,
		animateOptions: {
			duration: 500,
			queue: false
		},

// callbacks
		resized: null
	},

// Changes content and resizes dialog
	change: function(content, width, height, animate) {
		if (typeof animate !== "boolean") {
			animate = this.options.useAnimation;
		}

if (animate) {
			this.setAriaLive(true);
			this.element.one(this.widgetEventPrefix + "resized", this, function(event) {
				event.data.element.html(content);
				event.data.setAriaLive(false);
				event.data.focusTabbable();
			});
		} else {
			this.element.html(content);
		}

this.changeSize(width, height);
	},

// Changes size
	changeSize: function(width, height) {
		this._setOptions({
			width: width,
			height: height
		});
	},

_setOption: function(key, value) {
		if (key === "width") {
			this._oldSize.width = value;
		}
		if (key === "height") {
			this._oldSize.height = value;
		}

// we need to adjust the size as we need to set the overall dialog size
		if (this.options.useAnimation && this.options.useContentSize && this._isVisible) {
			if (key === "width") {
				value = value + ( this.uiDialog.width() - this.element.width() );
			}
			if (key === "height") {
				value = value + ( this.uiDialog.outerHeight() - this.element.height() );
			}
		}

this._super(key, value);
	},

// calculate actual displayed size, data contains already the overall dimensions
	_getSize: function(data) {
		var options = this.options,
			feedback = $.position.getWithinInfo(options.position.of),
			portrait = ( feedback.height >= feedback.width ) ? true : false,
			viewport = {
				width: feedback.width - ( this.uiDialog.outerWidth() - this.uiDialog.width() ),
				height: feedback.height
			};

if (options.forceFullscreen) {
			return viewport;
		}

if (options.resizeToBestPossibleSize) {
			if (portrait) {
				data = this._calcSize(data, viewport.width, "width", "height");
			} else {
				data = this._calcSize(data, viewport.height, "height", "width");
			}
		}

if (options.resizeAccordingToViewport || options.resizeToBestPossibleSize) {
			if (viewport.width < data.width) {
				data = this._calcSize(data, viewport.width, "width", "height");
			}
			if (viewport.height < data.height) {
				data = this._calcSize(data, viewport.height, "height", "width");
			}
		}

return data;
	},

_calcSize: function( data, value, sortBy, toSort ) {
		var newData = {};

newData[toSort] = Math.max(0, (data[ toSort ] / data[ sortBy ]) * value);
		newData[sortBy] = value;

return newData;
	},

_size: function() {
		// overwrite options with recalculated dimensions
		$.extend(this.options, this._getSize(this.options));

if (this._isVisible && this.options.useAnimation) {
			this._animateSize();
			return;
		}

if (this.options.useContentSize) {
			this._contentSize();
			return;
		}

this._super();
	},

/*
	 * Sets the size of the dialog
	 *
	 * Options width and height define content size, not overall size
	 */
	_contentSize: 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 nonContentHeight, nonContentWidth, actualSize,
			options = this.options;

// Reset content sizing
		nonContentWidth = this.element.show().css({
			width: options.width,
			minHeight: 0,
			maxHeight: "none",
			height: 0
		}).outerWidth() - options.width;
		this.element.css("width", "auto");

if (options.minWidth > options.width + nonContentWidth) {
			options.width = options.minWidth;
		}

// reset wrapper sizing
		// determine the height of all the non-content elements
		nonContentHeight = this.uiDialog.css({
				height: "auto",
				width: options.width + nonContentWidth
			})
			.outerHeight();

actualSize = this._getSize({
			width: options.width + nonContentWidth,
			height: options.height + nonContentHeight
		});

this.uiDialog.css("width", actualSize.width);
		this.element.height(Math.max(0, actualSize.height - nonContentHeight));

if (this.uiDialog.is(":data(ui-resizable)") ) {
			this.uiDialog.resizable("option", "minHeight", this._minHeight());
		}

// save calculated overall size
		$.extend(options, actualSize);
	},

// Processes the animated positioning (position using callback), works with any width and height options
	_animateUsing: function( position, data ) {
		var that = this;
		// calculate new position based on the viewport
		position.left = ( data.target.left + ( data.target.width - this.options.width - ( this.uiDialog.outerWidth() - this.uiDialog.width() ) ) / 2 );
		position.top = ( data.target.top + ( data.target.height - this.options.height ) / 2 );
		if (position.top < 0) {
			position.top = 0;
		}

this.uiDialog.animate(position, $.extend({}, this.options.animateOptions, {
			complete: function() {
				that._trigger("resized");
			}
		}));
	},

// animated the size, uses width and height options like default dialog widget (overall size)
	_animateSize: function() {
		var options = this.options;

this.uiDialog.animate({
			width: options.width
		}, options.animateOptions);

this.element.animate({
			// options.height is overall size, we need content size
			height: options.height - ( this.uiDialog.outerHeight() - this.element.height() )
		}, options.animateOptions);
	},

// position overwrite for animated positioning
	_position: function() {
		var that = this;
		this._positionOptions = this.options.position;
		// change position.using mechanism
		if (this.options.useAnimation && this._isVisible) {
			this.options.position.using = function(position, feedback) {
				that._animateUsing(position, feedback);
			};
		}
		this._super();
		// reset position.using mechanism
		this.options.position = this._positionOptions;
	},

// ARIA helper
	setAriaLive: function(busy) {
		this.uiDialog.attr({
			"aria-live": "assertive",
			"aria-relevant": "additions removals text",
			"aria-busy": busy
		});
	},

// all following functions add a variable to determine if the dialog is visible
	_create: function() {
		this._super();
		this._isVisible = false;
		this._oldSize = {
			width: this.options.width,
			height: this.options.height
		};

// make dialog responsive to viewport changes
		this._on(window, this._windowResizeEvents);

// add wrapper to dialog
		$('.updraft-dialog').not('.updraft-container > .updraft-dialog').wrap('<div class="updraft-container" />');
	},

_windowResizeEvents: {
		resize: function(e) {
			if (this.options.resizeOnWindowResize) {
				if (window === e.target) {
					this._addTimeout(function() {
						this._setOptions(this._oldSize);
					});
				} else {
					this._addTimeout(function() {
						this._position();
					});
				}
			}
		},
		scroll: function() {
			// second test prevents initial page load scroll event
			if (this.options.scrollWithViewport && this.timeout) {
				this._addTimeout(function() {
					this._position();
				});
			} else {
				this.timeout = true;
			}
		}
	},

_addTimeout: function(callback) {
		clearTimeout(this.timeout);
		if (this._isVisible) {
			this.timeout = this._delay(callback, 250);
		}
	},

_makeResizable: function() {
		this._super();
		this.element.on(this.widgetEventPrefix + "resizestop", this, function(event) {
			event.data.element.css("width", "auto");
			event.data.uiDialog.css("height", "auto");
		});
	},

_makeDraggable: function() {
		this._super();
		this.element.on(this.widgetEventPrefix + "dragstop", this, function(event) {
			event.data.options.position = event.data._positionOptions;
		});
	},

open: function() {
		this._super();
		this._isVisible = true;
	},

close: function() {
		this._super();
		this._isVisible = false;
	},

focusTabbable: function() {
		this._focusTabbable();
	},

_createOverlay: function() {
		this._super();
		if (this.options.modal && this.options.closeModalOnClick) {
			this._on(this.overlay, {
				mousedown: function(event) {
					this.close(event);
				}
			});
		}
	}
});

}( jQuery ));