/* * jQuery.splitter.js - two-pane splitter window plugin * * version 1.6 (2010/01/03) * * 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/jquery/splitter/ * * * @example $('#MySplitter').splitter(); * @desc Create a vertical splitter with default settings * * @example $('#MySplitter').splitter({type: 'h', accessKey: 'M'}); * @desc Create a horizontal splitter resizable via Alt+Shift+M * * @name splitter * @type jQuery * @param Object options Options for the splitter (not required) * @cat Plugins/Splitter * @return jQuery * @author Dave Methvin (dave.methvin@gmail.com) */ ;(function($){ var splitterCounter = 0; $.fn.splitter = function(args){ args = args || {}; return this.each(function() { if ( $(this).is(".splitter") ) // already a splitter return; var zombie; // left-behind splitbar for outline resizes function setBarState(state) { bar.removeClass(opts.barStateClasses).addClass(state); } function startSplitMouse(evt) { if ( evt.which != 1 ) return; // left button only bar.removeClass(opts.barHoverClass); if ( opts.outline ) { zombie = zombie || bar.clone(false).insertAfter(A); bar.removeClass(opts.barDockedClass); } setBarState(opts.barActiveClass) // Safari selects A/B text on a move; iframes capture mouse events so hide them panes.css("-webkit-user-select", "none").find("iframe").andSelf().filter("iframe").addClass(opts.iframeClass); A._posSplit = A[0][opts.pxSplit] - evt[opts.eventPos]; $(document) .bind("mousemove"+opts.eventNamespace, doSplitMouse) .bind("mouseup"+opts.eventNamespace, endSplitMouse); } function doSplitMouse(evt) { var pos = A._posSplit+evt[opts.eventPos], range = Math.max(0, Math.min(pos, splitter._DA - bar._DA)), limit = Math.max(A._min, splitter._DA - B._max, Math.min(pos, A._max, splitter._DA - bar._DA - B._min)); if ( opts.outline ) { // Let docking splitbar be dragged to the dock position, even if min width applies if ( (opts.dockPane == A && pos < Math.max(A._min, bar._DA)) || (opts.dockPane == B && pos > Math.min(pos, A._max, splitter._DA - bar._DA - B._min)) ) { bar.addClass(opts.barDockedClass).css(opts.origin, range); } else { bar.removeClass(opts.barDockedClass).css(opts.origin, limit); } bar._DA = bar[0][opts.pxSplit]; } else resplit(pos); setBarState(pos == limit? opts.barActiveClass : opts.barLimitClass); } function endSplitMouse(evt) { setBarState(opts.barNormalClass); bar.addClass(opts.barHoverClass); var pos = A._posSplit+evt[opts.eventPos]; if ( opts.outline ) { zombie.remove(); zombie = null; resplit(pos); } panes.css("-webkit-user-select", "text").find("iframe").andSelf().filter("iframe").removeClass(opts.iframeClass); $(document) .unbind("mousemove"+opts.eventNamespace+" mouseup"+opts.eventNamespace); } function resplit(pos) { bar._DA = bar[0][opts.pxSplit]; // bar size may change during dock // Constrain new splitbar position to fit pane size and docking limits if ( (opts.dockPane == A && pos < Math.max(A._min, bar._DA)) || (opts.dockPane == B && pos > Math.min(pos, A._max, splitter._DA - bar._DA - B._min)) ) { bar.addClass(opts.barDockedClass); bar._DA = bar[0][opts.pxSplit]; pos = opts.dockPane == A? 0 : splitter._DA - bar._DA; if ( bar._pos == null ) bar._pos = A[0][opts.pxSplit]; } else { bar.removeClass(opts.barDockedClass); bar._DA = bar[0][opts.pxSplit]; bar._pos = null; pos = Math.max(A._min, splitter._DA - B._max, Math.min(pos, A._max, splitter._DA - bar._DA - B._min)); } // Resize/position the two panes bar.css(opts.origin, pos).css(opts.fixed, splitter._DF); A.css(opts.origin, 0).css(opts.split, pos).css(opts.fixed, splitter._DF); B.css(opts.origin, pos+bar._DA) .css(opts.split, splitter._DA-bar._DA-pos).css(opts.fixed, splitter._DF); panes.trigger("resize"+opts.eventNamespace); } 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]),10) || 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({ // Defaults here allow easy use with ThemeRoller splitterClass: "splitter ui-widget ui-widget-content", paneClass: "splitter-pane", barClass: "splitter-bar", barNormalClass: "ui-state-default", // splitbar normal barHoverClass: "ui-state-hover", // splitbar mouse hover barActiveClass: "ui-state-highlight", // splitbar being moved barLimitClass: "ui-state-error", // splitbar at limit iframeClass: "splitter-iframe-hide", // hide iframes during split eventNamespace: ".splitter"+(++splitterCounter), pxPerKey: 8, // splitter px moved per keypress tabIndex: 0, // tab order indicator accessKey: '' // accessKey for splitbar },{ // user can override v: { // Vertical splitters: keyLeft: 39, keyRight: 37, cursor: "e-resize", barStateClass: "splitter-bar-vertical", barDockedClass: "splitter-bar-vertical-docked" }, h: { // Horizontal splitters: keyTop: 40, keyBottom: 38, cursor: "n-resize", barStateClass: "splitter-bar-horizontal", barDockedClass: "splitter-bar-horizontal-docked" } }[vh], args, { // user cannot override v: { // Vertical splitters: 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: type: 'h', eventPos: "pageY", origin: "top", split: "height", pxSplit: "offsetHeight", side1: "Top", side2: "Bottom", fixed: "width", pxFixed: "offsetWidth", side3: "Left", side4: "Right" } }[vh]); opts.barStateClasses = [opts.barNormalClass, opts.barHoverClass, opts.barActiveClass, opts.barLimitClass].join(' '); // Create jQuery object closures for splitter and both panes var splitter = $(this).css({position: "relative"}).addClass(opts.splitterClass); var panes = $(">*", splitter[0]).addClass(opts.paneClass).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]), B = $(panes[1]); // A = left/top, B = right/bottom opts.dockPane = opts.dock && (/right|bottom/.test(opts.dock)? B:A); // 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(("focus")+opts.eventNamespace, function(){ this.focus(); bar.addClass(opts.barActiveClass) }) .bind("keydown"+opts.eventNamespace, 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"+opts.eventNamespace, function(){ bar.removeClass(opts.barActiveClass) }); // Splitbar element var bar = $('<div></div>') .insertAfter(A).addClass(opts.barClass).addClass(opts.barStateClass) .append(focuser).attr({unselectable: "on"}) .css({position: "absolute", "user-select": "none", "-webkit-user-select": "none", "-khtml-user-select": "none", "-moz-user-select": "none", "z-index": "100"}) .bind("mousedown"+opts.eventNamespace, startSplitMouse) .bind("mouseover"+opts.eventNamespace, function(){ $(this).addClass(opts.barHoverClass); }) .bind("mouseout"+opts.eventNamespace, function(){ $(this).removeClass(opts.barHoverClass); }); // Use our cursor unless the style specifies a non-default cursor if ( /^(auto|default|)$/.test(bar.css("cursor")) ) bar.css("cursor", opts.cursor); // Cache several dimensions for speed, rather than re-querying constantly // These are saved on the A/B/bar/splitter jQuery vars, which are themselves cached // DA=dimension adjustable direction, PBF=padding/border fixed, PBA=padding/border adjustable bar._DA = bar[0][opts.pxSplit]; splitter._PBF = dimSum(splitter, "border"+opts.side3+"Width", "border"+opts.side4+"Width"); splitter._PBA = dimSum(splitter, "border"+opts.side1+"Width", "border"+opts.side2+"Width"); A._pane = opts.side1; B._pane = opts.side2; $.each([A,B], function(){ this._splitter_style = this.style; this._min = opts["min"+this._pane] || dimSum(this, "min-"+opts.split); this._max = opts["max"+this._pane] || dimSum(this, "max-"+opts.split) || 9999; this._init = opts["size"+this._pane]===true ? parseInt($.curCSS(this[0],opts.split),10) : 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 ( !$.cookie ) alert('jQuery.splitter(): jQuery cookie plugin required'); initPos = parseInt($.cookie(opts.cookie),10); $(window).bind("unload"+opts.eventNamespace, 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 ) opts.resizeTo = window; if ( opts.resizeTo ) { splitter._hadjust = dimSum(splitter, "borderTopWidth", "borderBottomWidth", "marginBottom"); splitter._hmin = Math.max(dimSum(splitter, "minHeight"), 20); $(window).bind("resize"+opts.eventNamespace, function(){ var top = splitter.offset().top; var eh = $(opts.resizeTo).height(); splitter.css("height", Math.max(eh-top-splitter._hadjust, splitter._hmin)+"px"); splitter.trigger("resize"); }).trigger("resize"+opts.eventNamespace); } else if ( opts.resizeToWidth ) { $(window).bind("resize"+opts.eventNamespace, function(){ splitter.trigger("resize"); }); } // Docking support if ( opts.dock ) { splitter .bind("toggleDock"+opts.eventNamespace, function() { var pw = opts.dockPane[0][opts.pxSplit]; splitter.trigger(pw?"dock":"undock"); }) .bind("dock"+opts.eventNamespace, function(){ var pw = A[0][opts.pxSplit]; if ( !pw ) return; // Don't try to dock twice if (bar.hasClass("splitter-bar-horizontal-docked") || bar.hasClass("splitter-bar-vertical-docked")) return; bar._pos = pw; var x={}; x[opts.origin] = opts.dockPane==A? 0 : splitter[0][opts.pxSplit] - splitter._PBA - bar[0][opts.pxSplit]; bar.animate(x, opts.dockSpeed||1, opts.dockEasing, function(){ bar.addClass(opts.barDockedClass); resplit(x[opts.origin]+1); }); }) .bind("undock"+opts.eventNamespace, function(){ var pw = opts.dockPane[0][opts.pxSplit]; if ( pw ) return; // 20px away is too close, reset to 50% if(bar._pos == null || Math.abs(bar._pos - splitter._DA - bar._DA) < 20) bar._pos = splitter._DA / 2; var x={}; x[opts.origin]=bar._pos+"px"; bar.removeClass(opts.barDockedClass) .animate(x, opts.undockSpeed||opts.dockSpeed||1, opts.undockEasing||opts.dockEasing, function(){ resplit(bar._pos); bar._pos = null; }); }); if ( opts.dockKey ) $('<a title="'+opts.splitbarClass+' toggle dock" href="javascript:void(0)"></a>') .attr({accessKey: opts.dockKey, tabIndex: -1}).appendTo(bar) .bind("focus", function(){ splitter.trigger("toggleDock"); this.blur(); }); bar.bind("dblclick", function(){ splitter.trigger("toggleDock"); }) } // Resize event handler; triggered immediately to set initial position splitter .bind("destroy"+opts.eventNamespace, function(){ $([window, document]).unbind(opts.eventNamespace); bar.unbind().remove(); panes.removeClass(opts.paneClass); splitter .removeClass(opts.splitterClass) .add(panes) .unbind(opts.eventNamespace) .attr("style", function(el){ return this._splitter_style||""; //TODO: save style }); splitter = bar = focuser = panes = A = B = opts = args = null; }) .bind("resize"+opts.eventNamespace, function(e, size){ // Custom events bubble in jQuery 1.3; avoid recursion 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)); setBarState(opts.barNormalClass); }) .trigger("resize" , [initPos]); }); }; })(jQuery);