IHTSDO/snomed-interaction-components

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external-libs/jquery.layout-1.2.0.js

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/*
 * jQuery.splitter.js - two-pane splitter window plugin
 *
 * version 1.51 (2009/01/09) 
 * 
 * Dual licensed under the MIT and GPL licenses: 
 *   http://www.opensource.org/licenses/mit-license.php 
 *   http://www.gnu.org/licenses/gpl.html 
 */

/**
 * The splitter() plugin implements a two-pane resizable splitter window.
 * The selected elements in the jQuery object are converted to a splitter;
 * each selected element should have two child elements, used for the panes
 * of the splitter. The plugin adds a third child element for the splitbar.
 * 
 * For more details see: http://methvin.com/splitter/
 *
 *
 * @example $('#MySplitter').splitter();
 * @desc Create a vertical splitter with default settings 
 *
 * @example $('#MySplitter').splitter({type: 'h', accessKey: 'M'});
 * @desc Create a horizontal splitter resizable via Alt+Shift+M
 *
 * @name splitter
 * @type jQuery
 * @param Object options Options for the splitter (not required)
 * @cat Plugins/Splitter
 * @return jQuery
 * @author Dave Methvin (dave.methvin@gmail.com)
 */
 ;(function($){
 
 $.fn.splitter = function(args){
    args = args || {};
    return this.each(function() {
        var zombie;        // left-behind splitbar for outline resizes
        function startSplitMouse(evt) {
            if ( opts.outline )
                zombie = zombie || bar.clone(false).insertAfter(A);
            panes.css("-webkit-user-select", "none");    // Safari selects A/B text on a move
            bar.addClass(opts.activeClass);
            A._posSplit = A[0][opts.pxSplit] - evt[opts.eventPos];
            $(document)
                .bind("mousemove", doSplitMouse)
                .bind("mouseup", endSplitMouse);
        }
        function doSplitMouse(evt) {
            var newPos = A._posSplit+evt[opts.eventPos];
            if ( opts.outline ) {
                newPos = Math.max(0, Math.min(newPos, splitter._DA - bar._DA));
                bar.css(opts.origin, newPos);
            } else 
                resplit(newPos);
        }
        function endSplitMouse(evt) {
            bar.removeClass(opts.activeClass);
            var newPos = A._posSplit+evt[opts.eventPos];
            if ( opts.outline ) {
                zombie.remove(); zombie = null;
                resplit(newPos);
            }
            panes.css("-webkit-user-select", "text");    // let Safari select text again
            $(document)
                .unbind("mousemove", doSplitMouse)
                .unbind("mouseup", endSplitMouse);
        }
        function resplit(newPos) {
            // Constrain new splitbar position to fit pane size limits
            newPos = Math.max(A._min, splitter._DA - B._max, 
                    Math.min(newPos, A._max, splitter._DA - bar._DA - B._min));
            // Resize/position the two panes
            bar._DA = bar[0][opts.pxSplit];        // bar size may change during dock
            bar.css(opts.origin, newPos).css(opts.fixed, splitter._DF);
            A.css(opts.origin, 0).css(opts.split, newPos).css(opts.fixed,  splitter._DF);
            B.css(opts.origin, newPos+bar._DA)
                .css(opts.split, splitter._DA-bar._DA-newPos).css(opts.fixed,  splitter._DF);
            // IE fires resize for us; all others pay cash
            if ( !$.browser.msie )
                panes.trigger("resize");
        }
        function dimSum(jq, dims) {
            // Opera returns -1 for missing min/max width, turn into 0
            var sum = 0;
            for ( var i=1; i < arguments.length; i++ )
                sum += Math.max(parseInt(jq.css(arguments[i])) || 0, 0);
            return sum;
        }
        
        // Determine settings based on incoming opts, element classes, and defaults
        var vh = (args.splitHorizontal? 'h' : args.splitVertical? 'v' : args.type) || 'v';
        var opts = $.extend({
            activeClass: 'active',    // class name for active splitter
            pxPerKey: 8,            // splitter px moved per keypress
            tabIndex: 0,            // tab order indicator
            accessKey: ''            // accessKey for splitbar
        },{
            v: {                    // Vertical splitters:
                keyLeft: 39, keyRight: 37, cursor: "e-resize",
                splitbarClass: "vsplitbar", outlineClass: "voutline",
                type: 'v', eventPos: "pageX", origin: "left",
                split: "width",  pxSplit: "offsetWidth",  side1: "Left", side2: "Right",
                fixed: "height", pxFixed: "offsetHeight", side3: "Top",  side4: "Bottom"
            },
            h: {                    // Horizontal splitters:
                keyTop: 40, keyBottom: 38,  cursor: "n-resize",
                splitbarClass: "hsplitbar", outlineClass: "houtline",
                type: 'h', eventPos: "pageY", origin: "top",
                split: "height", pxSplit: "offsetHeight", side1: "Top",  side2: "Bottom",
                fixed: "width",  pxFixed: "offsetWidth",  side3: "Left", side4: "Right"
            }
        }[vh], args);

        // Create jQuery object closures for splitter and both panes
        var splitter = $(this).css({position: "relative"});
        var panes = $(">*", splitter[0]).css({
            position: "absolute",             // positioned inside splitter container
            "z-index": "1",                    // splitbar is positioned above
            "-moz-outline-style": "none"    // don't show dotted outline
        });
        var A = $(panes[0]);        // left  or top
        var B = $(panes[1]);        // right or bottom

        // Focuser element, provides keyboard support; title is shown by Opera accessKeys
        var focuser = $('<a href="javascript:void(0)"></a>')
            .attr({accessKey: opts.accessKey, tabIndex: opts.tabIndex, title: opts.splitbarClass})
            .bind($.browser.opera?"click":"focus", function(){ this.focus(); bar.addClass(opts.activeClass) })
            .bind("keydown", function(e){
                var key = e.which || e.keyCode;
                var dir = key==opts["key"+opts.side1]? 1 : key==opts["key"+opts.side2]? -1 : 0;
                if ( dir )
                    resplit(A[0][opts.pxSplit]+dir*opts.pxPerKey, false);
            })
            .bind("blur", function(){ bar.removeClass(opts.activeClass) });
            
        // Splitbar element, can be already in the doc or we create one
        var bar = $(panes[2] || '<div></div>')
            .insertAfter(A).css("z-index", "100").append(focuser)
            .attr({"class": opts.splitbarClass, unselectable: "on"})
            .css({position: "absolute",    "user-select": "none", "-webkit-user-select": "none",
                "-khtml-user-select": "none", "-moz-user-select": "none"})
            .bind("mousedown", startSplitMouse);
        // Use our cursor unless the style specifies a non-default cursor
        if ( /^(auto|default|)$/.test(bar.css("cursor")) )
            bar.css("cursor", opts.cursor);

        // Cache several dimensions for speed, rather than re-querying constantly
        bar._DA = bar[0][opts.pxSplit];
        splitter._PBF = $.boxModel? dimSum(splitter, "border"+opts.side3+"Width", "border"+opts.side4+"Width") : 0;
        splitter._PBA = $.boxModel? dimSum(splitter, "border"+opts.side1+"Width", "border"+opts.side2+"Width") : 0;
        A._pane = opts.side1;
        B._pane = opts.side2;
        $.each([A,B], function(){
            this._min = opts["min"+this._pane] || dimSum(this, "min-"+opts.split);
            this._max = opts["max"+this._pane] || dimSum(this, "max-"+opts.split) || 9999;
            this._init = opts["size"+this._pane]===true ?
                parseInt($.curCSS(this[0],opts.split)) : opts["size"+this._pane];
        });
        
        // Determine initial position, get from cookie if specified
        var initPos = A._init;
        if ( !isNaN(B._init) )    // recalc initial B size as an offset from the top or left side
            initPos = splitter[0][opts.pxSplit] - splitter._PBA - B._init - bar._DA;
        if ( opts.cookie ) {
            if ( !$.cookie )
                alert('jQuery.splitter(): jQuery cookie plugin required');
            var ckpos = parseInt($.cookie(opts.cookie));
            if ( !isNaN(ckpos) )
                initPos = ckpos;
            $(window).bind("unload", function(){
                var state = String(bar.css(opts.origin));    // current location of splitbar
                $.cookie(opts.cookie, state, {expires: opts.cookieExpires || 365, 
                    path: opts.cookiePath || document.location.pathname});
            });
        }
        if ( isNaN(initPos) )    // King Solomon's algorithm
            initPos = Math.round((splitter[0][opts.pxSplit] - splitter._PBA - bar._DA)/2);

        // Resize event propagation and splitter sizing
        if ( opts.anchorToWindow ) {
            // Account for margin or border on the splitter container and enforce min height
            splitter._hadjust = dimSum(splitter, "borderTopWidth", "borderBottomWidth", "marginBottom");
            splitter._hmin = Math.max(dimSum(splitter, "minHeight"), 20);
            $(window).bind("resize", function(){
                var top = splitter.offset().top;
                var wh = $(window).height();
                splitter.css("height", Math.max(wh-top-splitter._hadjust, splitter._hmin)+"px");
                if ( !$.browser.msie ) splitter.trigger("resize");
            }).trigger("resize");
        }
        else if ( opts.resizeToWidth && !$.browser.msie )
            $(window).bind("resize", function(){
                splitter.trigger("resize"); 
            });

        // Resize event handler; triggered immediately to set initial position
        splitter.bind("resize", function(e, size){
            // Custom events bubble in jQuery 1.3; don't get into a Yo Dawg
            if ( e.target != this ) return;
            // Determine new width/height of splitter container
            splitter._DF = splitter[0][opts.pxFixed] - splitter._PBF;
            splitter._DA = splitter[0][opts.pxSplit] - splitter._PBA;
            // Bail if splitter isn't visible or content isn't there yet
            if ( splitter._DF <= 0 || splitter._DA <= 0 ) return;
            // Re-divvy the adjustable dimension; maintain size of the preferred pane
            resplit(!isNaN(size)? size : (!(opts.sizeRight||opts.sizeBottom)? A[0][opts.pxSplit] :
                splitter._DA-B[0][opts.pxSplit]-bar._DA));
        }).trigger("resize" , [initPos]);
    });
};

})(jQuery);