/*! * jQuery UI Resizable @VERSION * http://jqueryui.com * * Copyright 2013 jQuery Foundation and other contributors * Released under the MIT license. * http://jquery.org/license * * http://api.jqueryui.com/resizable/ * * Depends: * jquery.ui.core.js * jquery.ui.mouse.js * jquery.ui.widget.js */ (function( $, undefined ) { function num(v) { return parseInt(v, 10) || 0; } function isNumber(value) { return !isNaN(parseInt(value, 10)); } function hasScroll( el, a ) { //If overflow is hidden, the element might have extra content, but the user wants to hide it if ( $( el ).css( "overflow" ) === "hidden") { return false; } var scroll = ( a && a === "left" ) ? "scrollLeft" : "scrollTop", has = false; if ( el[ scroll ] > 0 ) { return true; } // TODO: determine which cases actually cause this to happen // if the element doesn't have the scroll set, see if it's possible to // set the scroll el[ scroll ] = 1; has = ( el[ scroll ] > 0 ); el[ scroll ] = 0; return has; } $.widget("ui.resizable", $.ui.mouse, { version: "@VERSION", widgetEventPrefix: "resize", options: { alsoResize: false, animate: false, animateDuration: "slow", animateEasing: "swing", aspectRatio: false, autoHide: false, containment: false, ghost: false, grid: false, handles: "e,s,se", helper: false, maxHeight: null, maxWidth: null, minHeight: 10, minWidth: 10, // See #7960 zIndex: 90, // callbacks resize: null, start: null, stop: null }, _create: function() { var n, i, handle, axis, hname, that = this, o = this.options; this.element.addClass("ui-resizable"); $.extend(this, { _aspectRatio: !!(o.aspectRatio), aspectRatio: o.aspectRatio, originalElement: this.element, _proportionallyResizeElements: [], _helper: o.helper || o.ghost || o.animate ? o.helper || "ui-resizable-helper" : null }); //Wrap the element if it cannot hold child nodes if(this.element[0].nodeName.match(/canvas|textarea|input|select|button|img/i)) { //Create a wrapper element and set the wrapper to the new current internal element this.element.wrap( $("
").css({ position: this.element.css("position"), width: this.element.outerWidth(), height: this.element.outerHeight(), top: this.element.css("top"), left: this.element.css("left") }) ); //Overwrite the original this.element this.element = this.element.parent().data( "ui-resizable", this.element.resizable( "instance" ) ); this.elementIsWrapper = true; //Move margins to the wrapper this.element.css({ marginLeft: this.originalElement.css("marginLeft"), marginTop: this.originalElement.css("marginTop"), marginRight: this.originalElement.css("marginRight"), marginBottom: this.originalElement.css("marginBottom") }); this.originalElement.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0}); //Prevent Safari textarea resize this.originalResizeStyle = this.originalElement.css("resize"); this.originalElement.css("resize", "none"); //Push the actual element to our proportionallyResize internal array this._proportionallyResizeElements.push(this.originalElement.css({ position: "static", zoom: 1, display: "block" })); // avoid IE jump (hard set the margin) this.originalElement.css({ margin: this.originalElement.css("margin") }); // fix handlers offset this._proportionallyResize(); } this.handles = o.handles || (!$(".ui-resizable-handle", this.element).length ? "e,s,se" : { n: ".ui-resizable-n", e: ".ui-resizable-e", s: ".ui-resizable-s", w: ".ui-resizable-w", se: ".ui-resizable-se", sw: ".ui-resizable-sw", ne: ".ui-resizable-ne", nw: ".ui-resizable-nw" }); if(this.handles.constructor === String) { if ( this.handles === "all") { this.handles = "n,e,s,w,se,sw,ne,nw"; } n = this.handles.split(","); this.handles = {}; for(i = 0; i < n.length; i++) { handle = $.trim(n[i]); hname = "ui-resizable-"+handle; axis = $("
"); // Apply zIndex to all handles - see #7960 axis.css({ zIndex: o.zIndex }); //TODO : What's going on here? if ("se" === handle) { axis.addClass("ui-icon ui-icon-gripsmall-diagonal-se"); } //Insert into internal handles object and append to element this.handles[handle] = ".ui-resizable-"+handle; this.element.append(axis); } } this._renderAxis = function(target) { var i, axis, padPos, padWrapper; target = target || this.element; for(i in this.handles) { if(this.handles[i].constructor === String) { this.handles[i] = $(this.handles[i], this.element).show(); } //Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls) if (this.elementIsWrapper && this.originalElement[0].nodeName.match(/textarea|input|select|button/i)) { axis = $(this.handles[i], this.element); //Checking the correct pad and border padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth(); //The padding type i have to apply... padPos = [ "padding", /ne|nw|n/.test(i) ? "Top" : /se|sw|s/.test(i) ? "Bottom" : /^e$/.test(i) ? "Right" : "Left" ].join(""); target.css(padPos, padWrapper); this._proportionallyResize(); } //TODO: What's that good for? There's not anything to be executed left if(!$(this.handles[i]).length) { continue; } } }; //TODO: make renderAxis a prototype function this._renderAxis(this.element); this._handles = $(".ui-resizable-handle", this.element) .disableSelection(); //Matching axis name this._handles.mouseover(function() { if (!that.resizing) { if (this.className) { axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i); } //Axis, default = se that.axis = axis && axis[1] ? axis[1] : "se"; } }); //If we want to auto hide the elements if (o.autoHide) { this._handles.hide(); $(this.element) .addClass("ui-resizable-autohide") .mouseenter(function() { if (o.disabled) { return; } $(this).removeClass("ui-resizable-autohide"); that._handles.show(); }) .mouseleave(function(){ if (o.disabled) { return; } if (!that.resizing) { $(this).addClass("ui-resizable-autohide"); that._handles.hide(); } }); } //Initialize the mouse interaction this._mouseInit(); }, _destroy: function() { this._mouseDestroy(); var wrapper, _destroy = function(exp) { $(exp).removeClass("ui-resizable ui-resizable-disabled ui-resizable-resizing") .removeData("resizable").removeData("ui-resizable").unbind(".resizable").find(".ui-resizable-handle").remove(); }; //TODO: Unwrap at same DOM position if (this.elementIsWrapper) { _destroy(this.element); wrapper = this.element; this.originalElement.css({ position: wrapper.css("position"), width: wrapper.outerWidth(), height: wrapper.outerHeight(), top: wrapper.css("top"), left: wrapper.css("left") }).insertAfter( wrapper ); wrapper.remove(); } this.originalElement.css("resize", this.originalResizeStyle); _destroy(this.originalElement); return this; }, _mouseCapture: function(event) { var i, handle, capture = false; for (i in this.handles) { handle = $(this.handles[i])[0]; if (handle === event.target || $.contains(handle, event.target)) { capture = true; } } return !this.options.disabled && capture; }, _mouseStart: function(event) { var curleft, curtop, cursor, o = this.options, iniPos = this.element.position(), el = this.element; this.resizing = true; // bugfix for http://dev.jquery.com/ticket/1749 if ( (/absolute/).test( el.css("position") ) ) { el.css({ position: "absolute", top: el.css("top"), left: el.css("left") }); } else if (el.is(".ui-draggable")) { el.css({ position: "absolute", top: iniPos.top, left: iniPos.left }); } this._renderProxy(); curleft = num(this.helper.css("left")); curtop = num(this.helper.css("top")); if (o.containment) { curleft += $(o.containment).scrollLeft() || 0; curtop += $(o.containment).scrollTop() || 0; } //Store needed variables this.offset = this.helper.offset(); this.position = { left: curleft, top: curtop }; this.size = this._helper ? { width: this.helper.width(), height: this.helper.height() } : { width: el.width(), height: el.height() }; this.originalSize = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() }; this.originalPosition = { left: curleft, top: curtop }; this.sizeDiff = { width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height() }; this.originalMousePosition = { left: event.pageX, top: event.pageY }; //Aspect Ratio this.aspectRatio = (typeof o.aspectRatio === "number") ? o.aspectRatio : ((this.originalSize.width / this.originalSize.height) || 1); cursor = $(".ui-resizable-" + this.axis).css("cursor"); $("body").css("cursor", cursor === "auto" ? this.axis + "-resize" : cursor); el.addClass("ui-resizable-resizing"); this._propagate("start", event); return true; }, _mouseDrag: function(event) { //Increase performance, avoid regex var data, el = this.helper, props = {}, smp = this.originalMousePosition, a = this.axis, prevTop = this.position.top, prevLeft = this.position.left, prevWidth = this.size.width, prevHeight = this.size.height, dx = (event.pageX-smp.left)||0, dy = (event.pageY-smp.top)||0, trigger = this._change[a]; if (!trigger) { return false; } // Calculate the attrs that will be change data = trigger.apply(this, [event, dx, dy]); // Put this in the mouseDrag handler since the user can start pressing shift while resizing this._updateVirtualBoundaries(event.shiftKey); if (this._aspectRatio || event.shiftKey) { data = this._updateRatio(data, event); } data = this._respectSize(data, event); this._updateCache(data); // plugins callbacks need to be called first this._propagate("resize", event); if (this.position.top !== prevTop) { props.top = this.position.top + "px"; } if (this.position.left !== prevLeft) { props.left = this.position.left + "px"; } if (this.size.width !== prevWidth) { props.width = this.size.width + "px"; } if (this.size.height !== prevHeight) { props.height = this.size.height + "px"; } el.css(props); if (!this._helper && this._proportionallyResizeElements.length) { this._proportionallyResize(); } // Call the user callback if the element was resized if ( ! $.isEmptyObject(props) ) { this._trigger("resize", event, this.ui()); } return false; }, _mouseStop: function(event) { this.resizing = false; var pr, ista, soffseth, soffsetw, s, left, top, o = this.options, that = this; if(this._helper) { pr = this._proportionallyResizeElements; ista = pr.length && (/textarea/i).test(pr[0].nodeName); soffseth = ista && hasScroll(pr[0], "left") /* TODO - jump height */ ? 0 : that.sizeDiff.height; soffsetw = ista ? 0 : that.sizeDiff.width; s = { width: (that.helper.width() - soffsetw), height: (that.helper.height() - soffseth) }; left = (parseInt(that.element.css("left"), 10) + (that.position.left - that.originalPosition.left)) || null; top = (parseInt(that.element.css("top"), 10) + (that.position.top - that.originalPosition.top)) || null; if (!o.animate) { this.element.css($.extend(s, { top: top, left: left })); } that.helper.height(that.size.height); that.helper.width(that.size.width); if (this._helper && !o.animate) { this._proportionallyResize(); } } $("body").css("cursor", "auto"); this.element.removeClass("ui-resizable-resizing"); this._propagate("stop", event); if (this._helper) { this.helper.remove(); } return false; }, _updateVirtualBoundaries: function(forceAspectRatio) { var pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b, o = this.options; b = { minWidth: isNumber(o.minWidth) ? o.minWidth : 0, maxWidth: isNumber(o.maxWidth) ? o.maxWidth : Infinity, minHeight: isNumber(o.minHeight) ? o.minHeight : 0, maxHeight: isNumber(o.maxHeight) ? o.maxHeight : Infinity }; if(this._aspectRatio || forceAspectRatio) { // We want to create an enclosing box whose aspect ration is the requested one // First, compute the "projected" size for each dimension based on the aspect ratio and other dimension pMinWidth = b.minHeight * this.aspectRatio; pMinHeight = b.minWidth / this.aspectRatio; pMaxWidth = b.maxHeight * this.aspectRatio; pMaxHeight = b.maxWidth / this.aspectRatio; if(pMinWidth > b.minWidth) { b.minWidth = pMinWidth; } if(pMinHeight > b.minHeight) { b.minHeight = pMinHeight; } if(pMaxWidth < b.maxWidth) { b.maxWidth = pMaxWidth; } if(pMaxHeight < b.maxHeight) { b.maxHeight = pMaxHeight; } } this._vBoundaries = b; }, _updateCache: function(data) { this.offset = this.helper.offset(); if (isNumber(data.left)) { this.position.left = data.left; } if (isNumber(data.top)) { this.position.top = data.top; } if (isNumber(data.height)) { this.size.height = data.height; } if (isNumber(data.width)) { this.size.width = data.width; } }, _updateRatio: function( data ) { var cpos = this.position, csize = this.size, a = this.axis; if (isNumber(data.height)) { data.width = (data.height * this.aspectRatio); } else if (isNumber(data.width)) { data.height = (data.width / this.aspectRatio); } if (a === "sw") { data.left = cpos.left + (csize.width - data.width); data.top = null; } if (a === "nw") { data.top = cpos.top + (csize.height - data.height); data.left = cpos.left + (csize.width - data.width); } return data; }, _respectSize: function( data ) { var o = this._vBoundaries, a = this.axis, ismaxw = isNumber(data.width) && o.maxWidth && (o.maxWidth < data.width), ismaxh = isNumber(data.height) && o.maxHeight && (o.maxHeight < data.height), isminw = isNumber(data.width) && o.minWidth && (o.minWidth > data.width), isminh = isNumber(data.height) && o.minHeight && (o.minHeight > data.height), dw = this.originalPosition.left + this.originalSize.width, dh = this.position.top + this.size.height, cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a); if (isminw) { data.width = o.minWidth; } if (isminh) { data.height = o.minHeight; } if (ismaxw) { data.width = o.maxWidth; } if (ismaxh) { data.height = o.maxHeight; } if (isminw && cw) { data.left = dw - o.minWidth; } if (ismaxw && cw) { data.left = dw - o.maxWidth; } if (isminh && ch) { data.top = dh - o.minHeight; } if (ismaxh && ch) { data.top = dh - o.maxHeight; } // fixing jump error on top/left - bug #2330 if (!data.width && !data.height && !data.left && data.top) { data.top = null; } else if (!data.width && !data.height && !data.top && data.left) { data.left = null; } return data; }, _proportionallyResize: function() { if (!this._proportionallyResizeElements.length) { return; } var i, j, borders, paddings, prel, element = this.helper || this.element; for ( i=0; i < this._proportionallyResizeElements.length; i++) { prel = this._proportionallyResizeElements[i]; if (!this.borderDif) { this.borderDif = []; borders = [prel.css("borderTopWidth"), prel.css("borderRightWidth"), prel.css("borderBottomWidth"), prel.css("borderLeftWidth")]; paddings = [prel.css("paddingTop"), prel.css("paddingRight"), prel.css("paddingBottom"), prel.css("paddingLeft")]; for ( j = 0; j < borders.length; j++ ) { this.borderDif[ j ] = ( parseInt( borders[ j ], 10 ) || 0 ) + ( parseInt( paddings[ j ], 10 ) || 0 ); } } prel.css({ height: (element.height() - this.borderDif[0] - this.borderDif[2]) || 0, width: (element.width() - this.borderDif[1] - this.borderDif[3]) || 0 }); } }, _renderProxy: function() { var el = this.element, o = this.options; this.elementOffset = el.offset(); if(this._helper) { this.helper = this.helper || $("
"); this.helper.addClass(this._helper).css({ width: this.element.outerWidth() - 1, height: this.element.outerHeight() - 1, position: "absolute", left: this.elementOffset.left +"px", top: this.elementOffset.top +"px", zIndex: ++o.zIndex //TODO: Don't modify option }); this.helper .appendTo("body") .disableSelection(); } else { this.helper = this.element; } }, _change: { e: function(event, dx) { return { width: this.originalSize.width + dx }; }, w: function(event, dx) { var cs = this.originalSize, sp = this.originalPosition; return { left: sp.left + dx, width: cs.width - dx }; }, n: function(event, dx, dy) { var cs = this.originalSize, sp = this.originalPosition; return { top: sp.top + dy, height: cs.height - dy }; }, s: function(event, dx, dy) { return { height: this.originalSize.height + dy }; }, se: function(event, dx, dy) { return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [event, dx, dy])); }, sw: function(event, dx, dy) { return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [event, dx, dy])); }, ne: function(event, dx, dy) { return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [event, dx, dy])); }, nw: function(event, dx, dy) { return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [event, dx, dy])); } }, _propagate: function(n, event) { $.ui.plugin.call(this, n, [event, this.ui()]); (n !== "resize" && this._trigger(n, event, this.ui())); }, plugins: {}, ui: function() { return { originalElement: this.originalElement, element: this.element, helper: this.helper, position: this.position, size: this.size, originalSize: this.originalSize, originalPosition: this.originalPosition }; } }); /* * Resizable Extensions */ $.ui.plugin.add("resizable", "animate", { stop: function( event ) { var that = $(this).resizable( "instance" ), o = that.options, pr = that._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName), soffseth = ista && hasScroll(pr[0], "left") /* TODO - jump height */ ? 0 : that.sizeDiff.height, soffsetw = ista ? 0 : that.sizeDiff.width, style = { width: (that.size.width - soffsetw), height: (that.size.height - soffseth) }, left = (parseInt(that.element.css("left"), 10) + (that.position.left - that.originalPosition.left)) || null, top = (parseInt(that.element.css("top"), 10) + (that.position.top - that.originalPosition.top)) || null; that.element.animate( $.extend(style, top && left ? { top: top, left: left } : {}), { duration: o.animateDuration, easing: o.animateEasing, step: function() { var data = { width: parseInt(that.element.css("width"), 10), height: parseInt(that.element.css("height"), 10), top: parseInt(that.element.css("top"), 10), left: parseInt(that.element.css("left"), 10) }; if (pr && pr.length) { $(pr[0]).css({ width: data.width, height: data.height }); } // propagating resize, and updating values for each animation step that._updateCache(data); that._propagate("resize", event); } } ); } }); $.ui.plugin.add("resizable", "containment", { start: function() { var element, p, co, ch, cw, width, height, that = $(this).resizable( "instance" ), o = that.options, el = that.element, oc = o.containment, ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc; if (!ce) { return; } that.containerElement = $(ce); if (/document/.test(oc) || oc === document) { that.containerOffset = { left: 0, top: 0 }; that.containerPosition = { left: 0, top: 0 }; that.parentData = { element: $(document), left: 0, top: 0, width: $(document).width(), height: $(document).height() || document.body.parentNode.scrollHeight }; } // i'm a node, so compute top, left, right, bottom else { element = $(ce); p = []; $([ "Top", "Right", "Left", "Bottom" ]).each(function(i, name) { p[i] = num(element.css("padding" + name)); }); that.containerOffset = element.offset(); that.containerPosition = element.position(); that.containerSize = { height: (element.innerHeight() - p[3]), width: (element.innerWidth() - p[1]) }; co = that.containerOffset; ch = that.containerSize.height; cw = that.containerSize.width; width = (hasScroll(ce, "left") ? ce.scrollWidth : cw ); height = (hasScroll(ce) ? ce.scrollHeight : ch); that.parentData = { element: ce, left: co.left, top: co.top, width: width, height: height }; } }, resize: function( event ) { var woset, hoset, isParent, isOffsetRelative, that = $(this).resizable( "instance" ), o = that.options, co = that.containerOffset, cp = that.position, pRatio = that._aspectRatio || event.shiftKey, cop = { top:0, left:0 }, ce = that.containerElement; if (ce[0] !== document && (/static/).test(ce.css("position"))) { cop = co; } if (cp.left < (that._helper ? co.left : 0)) { that.size.width = that.size.width + (that._helper ? (that.position.left - co.left) : (that.position.left - cop.left)); if (pRatio) { that.size.height = that.size.width / that.aspectRatio; } that.position.left = o.helper ? co.left : 0; } if (cp.top < (that._helper ? co.top : 0)) { that.size.height = that.size.height + (that._helper ? (that.position.top - co.top) : that.position.top); if (pRatio) { that.size.width = that.size.height * that.aspectRatio; } that.position.top = that._helper ? co.top : 0; } that.offset.left = that.parentData.left+that.position.left; that.offset.top = that.parentData.top+that.position.top; woset = Math.abs( (that._helper ? that.offset.left - cop.left : (that.offset.left - cop.left)) + that.sizeDiff.width ); hoset = Math.abs( (that._helper ? that.offset.top - cop.top : (that.offset.top - co.top)) + that.sizeDiff.height ); isParent = that.containerElement.get(0) === that.element.parent().get(0); isOffsetRelative = /relative|absolute/.test(that.containerElement.css("position")); if ( isParent && isOffsetRelative ) { woset -= Math.abs( that.parentData.left ); } if (woset + that.size.width >= that.parentData.width) { that.size.width = that.parentData.width - woset; if (pRatio) { that.size.height = that.size.width / that.aspectRatio; } } if (hoset + that.size.height >= that.parentData.height) { that.size.height = that.parentData.height - hoset; if (pRatio) { that.size.width = that.size.height * that.aspectRatio; } } }, stop: function(){ var that = $(this).resizable( "instance" ), o = that.options, co = that.containerOffset, cop = that.containerPosition, ce = that.containerElement, helper = $(that.helper), ho = helper.offset(), w = helper.outerWidth() - that.sizeDiff.width, h = helper.outerHeight() - that.sizeDiff.height; if (that._helper && !o.animate && (/relative/).test(ce.css("position"))) { $(this).css({ left: ho.left - cop.left - co.left, width: w, height: h }); } if (that._helper && !o.animate && (/static/).test(ce.css("position"))) { $(this).css({ left: ho.left - cop.left - co.left, width: w, height: h }); } } }); $.ui.plugin.add("resizable", "alsoResize", { start: function () { var that = $(this).resizable( "instance" ), o = that.options, _store = function (exp) { $(exp).each(function() { var el = $(this); el.data("ui-resizable-alsoresize", { width: parseInt(el.width(), 10), height: parseInt(el.height(), 10), left: parseInt(el.css("left"), 10), top: parseInt(el.css("top"), 10) }); }); }; if (typeof(o.alsoResize) === "object" && !o.alsoResize.parentNode) { if (o.alsoResize.length) { o.alsoResize = o.alsoResize[0]; _store(o.alsoResize); } else { $.each(o.alsoResize, function (exp) { _store(exp); }); } }else{ _store(o.alsoResize); } }, resize: function (event, ui) { var that = $(this).resizable( "instance" ), o = that.options, os = that.originalSize, op = that.originalPosition, delta = { height: (that.size.height - os.height) || 0, width: (that.size.width - os.width) || 0, top: (that.position.top - op.top) || 0, left: (that.position.left - op.left) || 0 }, _alsoResize = function (exp, c) { $(exp).each(function() { var el = $(this), start = $(this).data("ui-resizable-alsoresize"), style = {}, css = c && c.length ? c : el.parents(ui.originalElement[0]).length ? ["width", "height"] : ["width", "height", "top", "left"]; $.each(css, function (i, prop) { var sum = (start[prop]||0) + (delta[prop]||0); if (sum && sum >= 0) { style[prop] = sum || null; } }); el.css(style); }); }; if (typeof(o.alsoResize) === "object" && !o.alsoResize.nodeType) { $.each(o.alsoResize, function (exp, c) { _alsoResize(exp, c); }); }else{ _alsoResize(o.alsoResize); } }, stop: function () { $(this).removeData("resizable-alsoresize"); } }); $.ui.plugin.add("resizable", "ghost", { start: function() { var that = $(this).resizable( "instance" ), o = that.options, cs = that.size; that.ghost = that.originalElement.clone(); that.ghost .css({ opacity: 0.25, display: "block", position: "relative", height: cs.height, width: cs.width, margin: 0, left: 0, top: 0 }) .addClass("ui-resizable-ghost") .addClass(typeof o.ghost === "string" ? o.ghost : ""); that.ghost.appendTo(that.helper); }, resize: function(){ var that = $(this).resizable( "instance" ); if (that.ghost) { that.ghost.css({ position: "relative", height: that.size.height, width: that.size.width }); } }, stop: function() { var that = $(this).resizable( "instance" ); if (that.ghost && that.helper) { that.helper.get(0).removeChild(that.ghost.get(0)); } } }); $.ui.plugin.add("resizable", "grid", { resize: function() { var that = $(this).resizable( "instance" ), o = that.options, cs = that.size, os = that.originalSize, op = that.originalPosition, a = that.axis, grid = typeof o.grid === "number" ? [o.grid, o.grid] : o.grid, gridX = (grid[0]||1), gridY = (grid[1]||1), ox = Math.round((cs.width - os.width) / gridX) * gridX, oy = Math.round((cs.height - os.height) / gridY) * gridY, newWidth = os.width + ox, newHeight = os.height + oy, isMaxWidth = o.maxWidth && (o.maxWidth < newWidth), isMaxHeight = o.maxHeight && (o.maxHeight < newHeight), isMinWidth = o.minWidth && (o.minWidth > newWidth), isMinHeight = o.minHeight && (o.minHeight > newHeight); o.grid = grid; if (isMinWidth) { newWidth = newWidth + gridX; } if (isMinHeight) { newHeight = newHeight + gridY; } if (isMaxWidth) { newWidth = newWidth - gridX; } if (isMaxHeight) { newHeight = newHeight - gridY; } if (/^(se|s|e)$/.test(a)) { that.size.width = newWidth; that.size.height = newHeight; } else if (/^(ne)$/.test(a)) { that.size.width = newWidth; that.size.height = newHeight; that.position.top = op.top - oy; } else if (/^(sw)$/.test(a)) { that.size.width = newWidth; that.size.height = newHeight; that.position.left = op.left - ox; } else { that.size.width = newWidth; that.size.height = newHeight; that.position.top = op.top - oy; that.position.left = op.left - ox; } } }); })(jQuery);