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jquery.ui.resizable.js
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991 lines (800 loc) · 27.3 KB
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/*!
* 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(
$("<div class='ui-wrapper' style='overflow: hidden;'></div>").css({
position: this.element.css("position"),
width: this.element.outerWidth(),
height: this.element.outerHeight(),
top: this.element.css("top"),
left: this.element.css("left")
})
);
//Overwrite the original this.element
this.element = this.element.parent().data(
"ui-resizable", this.element.resizable( "instance" )
);
this.elementIsWrapper = true;
//Move margins to the wrapper
this.element.css({ marginLeft: this.originalElement.css("marginLeft"), marginTop: this.originalElement.css("marginTop"), marginRight: this.originalElement.css("marginRight"), marginBottom: this.originalElement.css("marginBottom") });
this.originalElement.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});
//Prevent Safari textarea resize
this.originalResizeStyle = this.originalElement.css("resize");
this.originalElement.css("resize", "none");
//Push the actual element to our proportionallyResize internal array
this._proportionallyResizeElements.push(this.originalElement.css({ position: "static", zoom: 1, display: "block" }));
// avoid IE jump (hard set the margin)
this.originalElement.css({ margin: this.originalElement.css("margin") });
// fix handlers offset
this._proportionallyResize();
}
this.handles = o.handles || (!$(".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 = $("<div class='ui-resizable-handle " + hname + "'></div>");
// 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;
6082
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: el.outerWidth(), height: el.outerHeight() } : { 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 || $("<div style='overflow:hidden;'></div>");
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);