/
resizable.js
1184 lines (975 loc) · 28.5 KB
/
resizable.js
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/*!
* jQuery UI Resizable @VERSION
* http://jqueryui.com
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*/
//>>label: Resizable
//>>group: Interactions
//>>description: Enables resize functionality for any element.
//>>docs: http://api.jqueryui.com/resizable/
//>>demos: http://jqueryui.com/resizable/
(function( factory ) {
if ( typeof define === "function" && define.amd ) {
// AMD. Register as an anonymous module.
define([
"jquery",
"./core",
"./mouse",
"./widget"
], factory );
} else {
// Browser globals
factory( jQuery );
}
}(function( $ ) {
$.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
},
_num: function( value ) {
return parseInt( value, 10 ) || 0;
},
_isNumber: function( value ) {
return !isNaN( parseInt( value, 10 ) );
},
_hasScroll: function( el, a ) {
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;
},
_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)) {
this.element.wrap(
$("<div class='ui-wrapper' style='overflow: hidden;'></div>").css({
position: this.element.css("position"),
width: this.element.outerWidth(),
height: this.element.outerHeight(),
top: this.element.css("top"),
left: this.element.css("left")
})
);
this.element = this.element.parent().data(
"ui-resizable", this.element.resizable( "instance" )
);
this.elementIsWrapper = true;
this.element.css({
marginLeft: this.originalElement.css("marginLeft"),
marginTop: this.originalElement.css("marginTop"),
marginRight: this.originalElement.css("marginRight"),
marginBottom: this.originalElement.css("marginBottom")
});
this.originalElement.css({
marginLeft: 0,
marginTop: 0,
marginRight: 0,
marginBottom: 0
});
// support: Safari
// Prevent Safari textarea resize
this.originalResizeStyle = this.originalElement.css("resize");
this.originalElement.css("resize", "none");
this._proportionallyResizeElements.push( this.originalElement.css({
position: "static",
zoom: 1,
display: "block"
}) );
// support: IE9
// avoid IE jump (hard set the margin)
this.originalElement.css({ margin: this.originalElement.css("margin") });
this._proportionallyResize();
}
this.handles = o.handles ||
( !$(".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 = $("<div class='ui-resizable-handle " + hname + "'></div>");
axis.css({ zIndex: o.zIndex });
// TODO : What's going on here?
if ("se" === handle) {
axis.addClass("ui-icon ui-icon-gripsmall-diagonal-se");
}
this.handles[handle] = ".ui-resizable-" + handle;
this.element.append(axis);
}
}
this._renderAxis = function(target) {
var i, axis, padPos, padWrapper;
target = target || this.element;
for (i in this.handles) {
if (this.handles[i].constructor === String) {
this.handles[i] = this.element.children( this.handles[ i ] ).first().show();
}
if (this.elementIsWrapper && this.originalElement[0].nodeName.match(/^(textarea|input|select|button)$/i)) {
axis = $(this.handles[i], this.element);
padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();
padPos = [ "padding",
/ne|nw|n/.test(i) ? "Top" :
/se|sw|s/.test(i) ? "Bottom" :
/^e$/.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();
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);
}
that.axis = axis && axis[1] ? axis[1] : "se";
}
});
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();
}
});
}
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,
el = this.element;
this.resizing = true;
this._renderProxy();
curleft = this._num(this.helper.css("left"));
curtop = this._num(this.helper.css("top"));
if (o.containment) {
curleft += $(o.containment).scrollLeft() || 0;
curtop += $(o.containment).scrollTop() || 0;
}
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.sizeDiff = {
width: el.outerWidth() - el.width(),
height: el.outerHeight() - el.height()
};
this.originalPosition = { left: curleft, top: curtop };
this.originalMousePosition = { left: event.pageX, top: event.pageY };
this.aspectRatio = (typeof o.aspectRatio === "number") ?
o.aspectRatio :
((this.originalSize.width / this.originalSize.height) || 1);
cursor = $(".ui-resizable-" + this.axis).css("cursor");
$("body").css("cursor", cursor === "auto" ? this.axis + "-resize" : cursor);
el.addClass("ui-resizable-resizing");
this._propagate("start", event);
return true;
},
_mouseDrag: function(event) {
var data, props,
smp = this.originalMousePosition,
a = this.axis,
dx = (event.pageX - smp.left) || 0,
dy = (event.pageY - smp.top) || 0,
trigger = this._change[a];
this._updatePrevProperties();
if (!trigger) {
return false;
}
data = trigger.apply(this, [ event, dx, dy ]);
this._updateVirtualBoundaries(event.shiftKey);
if (this._aspectRatio || event.shiftKey) {
data = this._updateRatio(data, event);
}
data = this._respectSize(data, event);
this._updateCache(data);
this._propagate("resize", event);
props = this._applyChanges();
if ( !this._helper && this._proportionallyResizeElements.length ) {
this._proportionallyResize();
}
if ( !$.isEmptyObject( props ) ) {
this._updatePrevProperties();
this._trigger( "resize", event, this.ui() );
this._applyChanges();
}
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 && this._hasScroll(pr[0], "left") ? 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;
},
_updatePrevProperties: function() {
this.prevPosition = {
top: this.position.top,
left: this.position.left
};
this.prevSize = {
width: this.size.width,
height: this.size.height
};
},
_applyChanges: function() {
var props = {};
if ( this.position.top !== this.prevPosition.top ) {
props.top = this.position.top + "px";
}
if ( this.position.left !== this.prevPosition.left ) {
props.left = this.position.left + "px";
}
if ( this.size.width !== this.prevSize.width ) {
props.width = this.size.width + "px";
}
if ( this.size.height !== this.prevSize.height ) {
props.height = this.size.height + "px";
}
this.helper.css( props );
return props;
},
_updateVirtualBoundaries: function(forceAspectRatio) {
var pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b,
o = this.options;
b = {
minWidth: this._isNumber(o.minWidth) ? o.minWidth : 0,
maxWidth: this._isNumber(o.maxWidth) ? o.maxWidth : Infinity,
minHeight: this._isNumber(o.minHeight) ? o.minHeight : 0,
maxHeight: this._isNumber(o.maxHeight) ? o.maxHeight : Infinity
};
if (this._aspectRatio || forceAspectRatio) {
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 (this._isNumber(data.left)) {
this.position.left = data.left;
}
if (this._isNumber(data.top)) {
this.position.top = data.top;
}
if (this._isNumber(data.height)) {
this.size.height = data.height;
}
if (this._isNumber(data.width)) {
this.size.width = data.width;
}
},
_updateRatio: function( data ) {
var cpos = this.position,
csize = this.size,
a = this.axis;
if (this._isNumber(data.height)) {
data.width = (data.height * this.aspectRatio);
} else if (this._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 = this._isNumber(data.width) && o.maxWidth && (o.maxWidth < data.width),
ismaxh = this._isNumber(data.height) && o.maxHeight && (o.maxHeight < data.height),
isminw = this._isNumber(data.width) && o.minWidth && (o.minWidth > data.width),
isminh = this._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;
},
_getPaddingPlusBorderDimensions: function( element ) {
var i = 0,
widths = [],
borders = [
element.css( "borderTopWidth" ),
element.css( "borderRightWidth" ),
element.css( "borderBottomWidth" ),
element.css( "borderLeftWidth" )
],
paddings = [
element.css( "paddingTop" ),
element.css( "paddingRight" ),
element.css( "paddingBottom" ),
element.css( "paddingLeft" )
];
for ( ; i < 4; i++ ) {
widths[ i ] = ( parseInt( borders[ i ], 10 ) || 0 );
widths[ i ] += ( parseInt( paddings[ i ], 10 ) || 0 );
}
return {
height: widths[ 0 ] + widths[ 2 ],
width: widths[ 1 ] + widths[ 3 ]
};
},
_proportionallyResize: function() {
if (!this._proportionallyResizeElements.length) {
return;
}
var prel,
i = 0,
element = this.helper || this.element;
for ( ; i < this._proportionallyResizeElements.length; i++) {
prel = this._proportionallyResizeElements[i];
// TODO: Seems like a bug to cache this.outerDimensions
// considering that we are in a loop.
if (!this.outerDimensions) {
this.outerDimensions = this._getPaddingPlusBorderDimensions( prel );
}
prel.css({
height: (element.height() - this.outerDimensions.height) || 0,
width: (element.width() - this.outerDimensions.width) || 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 && that._hasScroll(pr[0], "left") ? 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
};
} else {
element = $( ce );
p = [];
$([ "Top", "Right", "Left", "Bottom" ]).each(function( i, name ) {
p[ i ] = that._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 = ( that._hasScroll ( ce, "left" ) ? ce.scrollWidth : cw );
height = ( that._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,
continueResize = true;
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;
continueResize = false;
}
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;
continueResize = false;
}
that.position.top = that._helper ? co.top : 0;
}
isParent = that.containerElement.get( 0 ) === that.element.parent().get( 0 );
isOffsetRelative = /relative|absolute/.test( that.containerElement.css( "position" ) );
if ( isParent && isOffsetRelative ) {
that.offset.left = that.parentData.left + that.position.left;
that.offset.top = that.parentData.top + that.position.top;
} else {
that.offset.left = that.element.offset().left;
that.offset.top = that.element.offset().top;
}
woset = Math.abs( that.sizeDiff.width +
(that._helper ?
that.offset.left - cop.left :
(that.offset.left - co.left)) );
hoset = Math.abs( that.sizeDiff.height +
(that._helper ?
that.offset.top - cop.top :
(that.offset.top - co.top)) );
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;
continueResize = false;
}
}
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;
continueResize = false;
}
}
if ( !continueResize ){
that.position.left = that.prevPosition.left;
that.position.top = that.prevPosition.top;
that.size.width = that.prevSize.width;
that.size.height = that.prevSize.height;
}
},
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)
});
});