[ 't', 'tr', 'r', 'br', 'b', 'bl', 'l', 'tl' ]. You can
* read this list as top, top-right, right, bottom-right, bottom,
* bottom-left, left, top-left.var instance = new Y.Resize({
* node: '#resize1',
* preserveRatio: true,
* wrap: true,
* maxHeight: 170,
* maxWidth: 400,
* handles: 't, tr, r, br, b, bl, l, tl'
* });
* wrapper attribute.
*
* @attribute wrap
* @default false
* @type boolean
*/
wrap: {
setter: '_setWrap',
value: false,
validator: isBoolean
},
/**
* Elements that requires a wrapper by default. Normally are elements
* which cannot have children elements.
*
* @attribute wrapTypes
* @default /canvas|textarea|input|select|button|img/i
* @readOnly
* @type Regex
*/
wrapTypes: {
readOnly: true,
value: /^canvas|textarea|input|select|button|img|iframe|table|embed$/i
},
/**
* Element to wrap the wrapTypes. This element will house
* the handles elements.
*
* @attribute wrapper
* @default div
* @type String | Node
* @writeOnce
*/
wrapper: {
readOnly: true,
valueFn: '_valueWrapper',
writeOnce: true
}
},
RULES: {
b: function(instance, dx, dy) {
var info = instance.info,
originalInfo = instance.originalInfo;
info.offsetHeight = originalInfo.offsetHeight + dy;
},
l: function(instance, dx, dy) {
var info = instance.info,
originalInfo = instance.originalInfo;
info.left = originalInfo.left + dx;
info.offsetWidth = originalInfo.offsetWidth - dx;
},
r: function(instance, dx, dy) {
var info = instance.info,
originalInfo = instance.originalInfo;
info.offsetWidth = originalInfo.offsetWidth + dx;
},
t: function(instance, dx, dy) {
var info = instance.info,
originalInfo = instance.originalInfo;
info.top = originalInfo.top + dy;
info.offsetHeight = originalInfo.offsetHeight - dy;
},
tr: function(instance, dx, dy) {
this.t.apply(this, arguments);
this.r.apply(this, arguments);
},
bl: function(instance, dx, dy) {
this.b.apply(this, arguments);
this.l.apply(this, arguments);
},
br: function(instance, dx, dy) {
this.b.apply(this, arguments);
this.r.apply(this, arguments);
},
tl: function(instance, dx, dy) {
this.t.apply(this, arguments);
this.l.apply(this, arguments);
}
},
capitalize: capitalize
});
Y.Resize = Y.extend(
Resize,
Y.Base,
{
/**
* Array containing all possible resizable handles.
*
* @property ALL_HANDLES
* @type {String}
*/
ALL_HANDLES: [ T, TR, R, BR, B, BL, L, TL ],
/**
* Regex which matches with the handles that could change the height of
* the resizable element.
*
* @property REGEX_CHANGE_HEIGHT
* @type {String}
*/
REGEX_CHANGE_HEIGHT: /^(t|tr|b|bl|br|tl)$/i,
/**
* Regex which matches with the handles that could change the left of
* the resizable element.
*
* @property REGEX_CHANGE_LEFT
* @type {String}
*/
REGEX_CHANGE_LEFT: /^(tl|l|bl)$/i,
/**
* Regex which matches with the handles that could change the top of
* the resizable element.
*
* @property REGEX_CHANGE_TOP
* @type {String}
*/
REGEX_CHANGE_TOP: /^(tl|t|tr)$/i,
/**
* Regex which matches with the handles that could change the width of
* the resizable element.
*
* @property REGEX_CHANGE_WIDTH
* @type {String}
*/
REGEX_CHANGE_WIDTH: /^(bl|br|l|r|tl|tr)$/i,
/**
* Template used to create the resize wrapper node when needed.
*
* @property WRAP_TEMPLATE
* @type {String}
*/
WRAP_TEMPLATE: '',
/**
* Template used to create each resize handle.
*
* @property HANDLE_TEMPLATE
* @type {String}
*/
HANDLE_TEMPLATE: 'Loop through each handle which is being used and executes a callback.
*Example:
*instance.eachHandle(
* function(handleName, index) { ... }
* );Generates metadata to the info * and originalInfo
*bottom, actXY, left, top, offsetHeight, offsetWidth, rightinstance.changeHeightHandles,
* instance.changeLeftHandles, instance.changeTopHandles,
* instance.changeWidthHandles information.
*
* @method _updateChangeHandleInfo
* @private
*/
_updateChangeHandleInfo: function(handle) {
var instance = this;
instance.changeHeightHandles = instance.REGEX_CHANGE_HEIGHT.test(handle);
instance.changeLeftHandles = instance.REGEX_CHANGE_LEFT.test(handle);
instance.changeTopHandles = instance.REGEX_CHANGE_TOP.test(handle);
instance.changeWidthHandles = instance.REGEX_CHANGE_WIDTH.test(handle);
},
/**
* Update info values (bottom, actXY, left, top, offsetHeight, offsetWidth, right).
*
* @method _updateInfo
* @private
*/
_updateInfo: function(event) {
var instance = this;
instance.info = instance._getInfo(instance.get(WRAPPER), event);
},
/**
* Update properties
* nodeSurrounding,
* wrapperSurrounding,
* totalVSurrounding,
* totalHSurrounding.
*
* @method _updateSurroundingInfo
* @private
*/
_updateSurroundingInfo: function() {
var instance = this,
node = instance.get(NODE),
wrapper = instance.get(WRAPPER),
nodeSurrounding = instance._getBoxSurroundingInfo(node),
wrapperSurrounding = instance._getBoxSurroundingInfo(wrapper);
instance.nodeSurrounding = nodeSurrounding;
instance.wrapperSurrounding = wrapperSurrounding;
instance.totalVSurrounding = (nodeSurrounding.totalVPadding + wrapperSurrounding.totalVBorder);
instance.totalHSurrounding = (nodeSurrounding.totalHPadding + wrapperSurrounding.totalHBorder);
},
/**
* Set the active state of the handles.
*
* @method _setActiveHandlesUI
* @param {boolean} val True to activate the handles, false to deactivate.
* @protected
*/
_setActiveHandlesUI: function(val) {
var instance = this,
activeHandleNode = instance.get(ACTIVE_HANDLE_NODE);
if (activeHandleNode) {
if (val) {
// remove CSS_RESIZE_HANDLE_ACTIVE from all handles before addClass on the active
instance.eachHandle(
function(handleEl) {
handleEl.removeClass(CSS_RESIZE_HANDLE_ACTIVE);
}
);
activeHandleNode.addClass(CSS_RESIZE_HANDLE_ACTIVE);
}
else {
activeHandleNode.removeClass(CSS_RESIZE_HANDLE_ACTIVE);
}
}
},
/**
* Setter for the handles attribute
*
* @method _setHandles
* @protected
* @param {String} val
*/
_setHandles: function(val) {
var instance = this,
handles = [];
// handles attr accepts both array or string
if (isArray(val)) {
handles = val;
}
else if (isString(val)) {
// if the handles attr passed in is an ALL string...
if (val.toLowerCase() == ALL) {
handles = instance.ALL_HANDLES;
}
// otherwise, split the string to extract the handles
else {
Y.each(
val.split(COMMA),
function(node, i) {
var handle = trim(node);
// if its a valid handle, add it to the handles output
if (indexOf(instance.ALL_HANDLES, handle) > -1) {
handles.push(handle);
}
}
);
}
}
return handles;
},
/**
* Set the visibility of the handles.
*
* @method _setHideHandlesUI
* @param {boolean} val True to hide the handles, false to show.
* @protected
*/
_setHideHandlesUI: function(val) {
var instance = this,
wrapper = instance.get(WRAPPER);
if (!instance.get(RESIZING)) {
if (val) {
wrapper.addClass(CSS_RESIZE_HIDDEN_HANDLES);
}
else {
wrapper.removeClass(CSS_RESIZE_HIDDEN_HANDLES);
}
}
},
/**
* Setter for the wrap attribute
*
* @method _setWrap
* @protected
* @param {boolean} val
*/
_setWrap: function(val) {
var instance = this,
node = instance.get(NODE),
nodeName = node.get(NODE_NAME),
typeRegex = instance.get(WRAP_TYPES);
// if nodeName is listed on WRAP_TYPES force use the wrapper
if (typeRegex.test(nodeName)) {
val = true;
}
return val;
},
/**
* Default resize:mouseUp handler
*
* @method _defMouseUpFn
* @param {EventFacade} event The Event object
* @protected
*/
_defMouseUpFn: function(event) {
var instance = this;
instance.set(RESIZING, false);
},
/**
* Default resize:resize handler
*
* @method _defResizeFn
* @param {EventFacade} event The Event object
* @protected
*/
_defResizeFn: function(event) {
var instance = this;
instance._resize(event);
},
/**
* Logic method for _defResizeFn. Allow AOP.
*
* @method _resize
* @param {EventFacade} event The Event object
* @protected
*/
_resize: function(event) {
var instance = this;
instance._handleResizeAlignEvent(event.dragEvent);
// _syncUI of the wrapper, not using proxy
instance._syncUI();
},
/**
* Default resize:align handler
*
* @method _defResizeAlignFn
* @param {EventFacade} event The Event object
* @protected
*/
_defResizeAlignFn: function(event) {
var instance = this;
instance._resizeAlign(event);
},
/**
* Logic method for _defResizeAlignFn. Allow AOP.
*
* @method _resizeAlign
* @param {EventFacade} event The Event object
* @protected
*/
_resizeAlign: function(event) {
var instance = this,
info,
defMinHeight,
defMinWidth;
instance.lastInfo = instance.info;
// update the instance.info values
instance._updateInfo(event);
info = instance.info;
// basic resize calculations
instance._calcResize();
// if Y.Plugin.ResizeConstrained is not plugged, check for min dimension
if (!instance.con) {
defMinHeight = (instance.get(DEF_MIN_HEIGHT) + instance.totalVSurrounding);
defMinWidth = (instance.get(DEF_MIN_WIDTH) + instance.totalHSurrounding);
if (info.offsetHeight <= defMinHeight) {
instance._checkSize(OFFSET_HEIGHT, defMinHeight);
}
if (info.offsetWidth <= defMinWidth) {
instance._checkSize(OFFSET_WIDTH, defMinWidth);
}
}
},
/**
* Default resize:end handler
*
* @method _defResizeEndFn
* @param {EventFacade} event The Event object
* @protected
*/
_defResizeEndFn: function(event) {
var instance = this;
instance._resizeEnd(event);
},
/**
* Logic method for _defResizeEndFn. Allow AOP.
*
* @method _resizeEnd
* @param {EventFacade} event The Event object
* @protected
*/
_resizeEnd: function(event) {
var instance = this,
drag = event.dragEvent.target;
// reseting actXY from drag when drag end
drag.actXY = [];
// syncUI when resize end
instance._syncUI();
instance._setActiveHandlesUI(false);
instance.set(ACTIVE_HANDLE, null);
instance.set(ACTIVE_HANDLE_NODE, null);
instance.handle = null;
},
/**
* Default resize:start handler
*
* @method _defResizeStartFn
* @param {EventFacade} event The Event object
* @protected
*/
_defResizeStartFn: function(event) {
var instance = this;
instance._resizeStart(event);
},
/**
* Logic method for _defResizeStartFn. Allow AOP.
*
* @method _resizeStart
* @param {EventFacade} event The Event object
* @protected
*/
_resizeStart: function(event) {
var instance = this,
wrapper = instance.get(WRAPPER);
instance.handle = instance.get(ACTIVE_HANDLE);
instance.set(RESIZING, true);
instance._updateSurroundingInfo();
// create an originalInfo information for reference
instance.originalInfo = instance._getInfo(wrapper, event);
instance._updateInfo(event);
},
/**
* Fires the resize:mouseUp event.
*
* @method _handleMouseUpEvent
* @param {EventFacade} event resize:mouseUp event facade
* @protected
*/
_handleMouseUpEvent: function(event) {
this.fire(EV_MOUSE_UP, { dragEvent: event, info: this.info });
},
/**
* Fires the resize:resize event.
*
* @method _handleResizeEvent
* @param {EventFacade} event resize:resize event facade
* @protected
*/
_handleResizeEvent: function(event) {
this.fire(EV_RESIZE, { dragEvent: event, info: this.info });
},
/**
* Fires the resize:align event.
*
* @method _handleResizeAlignEvent
* @param {EventFacade} event resize:resize event facade
* @protected
*/
_handleResizeAlignEvent: function(event) {
this.fire(EV_RESIZE_ALIGN, { dragEvent: event, info: this.info });
},
/**
* Fires the resize:end event.
*
* @method _handleResizeEndEvent
* @param {EventFacade} event resize:end event facade
* @protected
*/
_handleResizeEndEvent: function(event) {
this.fire(EV_RESIZE_END, { dragEvent: event, info: this.info });
},
/**
* Fires the resize:start event.
*
* @method _handleResizeStartEvent
* @param {EventFacade} event resize:start event facade
* @protected
*/
_handleResizeStartEvent: function(event) {
if (!this.get(ACTIVE_HANDLE)) {
//This handles the "touch" case
this._setHandleFromNode(event.target.get('node'));
}
this.fire(EV_RESIZE_START, { dragEvent: event, info: this.info });
},
/**
* Mouseenter event handler for the wrapper.
*
* @method _onWrapperMouseEnter
* @param {EventFacade} event
* @protected
*/
_onWrapperMouseEnter: function(event) {
var instance = this;
if (instance.get(AUTO_HIDE)) {
instance._setHideHandlesUI(false);
}
},
/**
* Mouseleave event handler for the wrapper.
*
* @method _onWrapperMouseLeave
* @param {EventFacade} event
* @protected
*/
_onWrapperMouseLeave: function(event) {
var instance = this;
if (instance.get(AUTO_HIDE)) {
instance._setHideHandlesUI(true);
}
},
/**
* Handles setting the activeHandle from a node, used from startDrag (for touch) and mouseenter (for mouse).
*
* @method _setHandleFromNode
* @param {Node} node
* @protected
*/
_setHandleFromNode: function(node) {
var instance = this,
handle = instance._extractHandleName(node);
if (!instance.get(RESIZING)) {
instance.set(ACTIVE_HANDLE, handle);
instance.set(ACTIVE_HANDLE_NODE, node);
instance._setActiveHandlesUI(true);
instance._updateChangeHandleInfo(handle);
}
},
/**
* Mouseenter event handler for the handles.
*
* @method _onHandleMouseEnter
* @param {EventFacade} event
* @protected
*/
_onHandleMouseEnter: function(event) {
this._setHandleFromNode(event.currentTarget);
},
/**
* Mouseout event handler for the handles.
*
* @method _onHandleMouseLeave
* @param {EventFacade} event
* @protected
*/
_onHandleMouseLeave: function(event) {
var instance = this;
if (!instance.get(RESIZING)) {
instance._setActiveHandlesUI(false);
}
},
/**
* Default value for the wrapper attribute
*
* @method _valueWrapper
* @protected
* @readOnly
*/
_valueWrapper: function() {
var instance = this,
node = instance.get(NODE),
pNode = node.get(PARENT_NODE),
// by deafult the wrapper is always the node
wrapper = node;
// if the node is listed on the wrapTypes or wrap is set to true, create another wrapper
if (instance.get(WRAP)) {
wrapper = Y.Node.create(instance.WRAP_TEMPLATE);
if (pNode) {
pNode.insertBefore(wrapper, node);
}
wrapper.append(node);
instance._copyStyles(node, wrapper);
// remove positioning of wrapped node, the WRAPPER take care about positioning
node.setStyles({
position: STATIC,
left: 0,
top: 0
});
}
return wrapper;
}
}
);
Y.each(Y.Resize.prototype.ALL_HANDLES, function(handle, i) {
// creating ATTRS with the handles elements
Y.Resize.ATTRS[handleAttrName(handle)] = {
setter: function() {
return this._buildHandle(handle);
},
value: null,
writeOnce: true
};
});
}, '3.3.0' ,{requires:['base', 'widget', 'substitute', 'event', 'oop', 'dd-drag', 'dd-delegate', 'dd-drop'], skinnable:true});
YUI.add('resize-proxy', function(Y) {
var ACTIVE_HANDLE_NODE = 'activeHandleNode',
CURSOR = 'cursor',
DRAG_CURSOR = 'dragCursor',
HOST = 'host',
PARENT_NODE = 'parentNode',
PROXY = 'proxy',
PROXY_NODE = 'proxyNode',
RESIZE = 'resize',
RESIZE_PROXY = 'resize-proxy',
WRAPPER = 'wrapper',
getCN = Y.ClassNameManager.getClassName,
CSS_RESIZE_PROXY = getCN(RESIZE, PROXY);
function ResizeProxy() {
ResizeProxy.superclass.constructor.apply(this, arguments);
}
Y.mix(ResizeProxy, {
NAME: RESIZE_PROXY,
NS: PROXY,
ATTRS: {
/**
* The Resize proxy element.
*
* @attribute proxyNode
* @default Generated using an internal HTML markup
* @type String | Node
*/
proxyNode: {
setter: Y.one,
valueFn: function() {
return Y.Node.create(this.PROXY_TEMPLATE);
}
}
}
});
Y.extend(ResizeProxy, Y.Plugin.Base, {
/**
* Template used to create the resize proxy.
*
* @property PROXY_TEMPLATE
* @type {String}
*/
PROXY_TEMPLATE: '',
initializer: function() {
var instance = this;
instance.afterHostEvent('resize:start', instance._afterResizeStart);
instance.beforeHostMethod('_resize', instance._beforeHostResize);
instance.afterHostMethod('_resizeEnd', instance._afterHostResizeEnd);
},
destructor: function() {
var instance = this;
instance.get(PROXY_NODE).remove(true);
},
_afterHostResizeEnd: function(event) {
var instance = this,
drag = event.dragEvent.target;
// reseting actXY from drag when drag end
drag.actXY = [];
// if proxy is true, hide it on resize end
instance._syncProxyUI();
instance.get(PROXY_NODE).hide();
},
_afterResizeStart: function(event) {
var instance = this;
instance._renderProxy();
},
_beforeHostResize: function(event) {
var instance = this,
host = this.get(HOST);
host._handleResizeAlignEvent(event.dragEvent);
// if proxy is true _syncProxyUI instead of _syncUI
instance._syncProxyUI();
return new Y.Do.Prevent();
},
/**
* Render the proxyNode element and
* make it sibling of the node.
*
* @method _renderProxy
* @protected
*/
_renderProxy: function() {
var instance = this,
host = this.get(HOST),
proxyNode = instance.get(PROXY_NODE);
if (!proxyNode.inDoc()) {
host.get(WRAPPER).get(PARENT_NODE).append(
proxyNode.hide()
);
}
},
/**
* Sync the proxy UI with internal values from
* info.
*
* @method _syncProxyUI
* @protected
*/
_syncProxyUI: function() {
var instance = this,
host = this.get(HOST),
info = host.info,
activeHandleNode = host.get(ACTIVE_HANDLE_NODE),
proxyNode = instance.get(PROXY_NODE),
cursor = activeHandleNode.getStyle(CURSOR);
proxyNode.show().setStyle(CURSOR, cursor);
host.delegate.dd.set(DRAG_CURSOR, cursor);
proxyNode.sizeTo(info.offsetWidth, info.offsetHeight);
proxyNode.setXY([ info.left, info.top ]);
}
});
Y.namespace('Plugin');
Y.Plugin.ResizeProxy = ResizeProxy;
}, '3.3.0' ,{requires:['resize-base', 'plugin'], skinnable:false});
YUI.add('resize-constrain', function(Y) {
var Lang = Y.Lang,
isBoolean = Lang.isBoolean,
isNumber = Lang.isNumber,
isString = Lang.isString,
capitalize = Y.Resize.capitalize,
isNode = function(v) {
return (v instanceof Y.Node);
},
toNumber = function(num) {
return parseFloat(num) || 0;
},
BORDER_BOTTOM_WIDTH = 'borderBottomWidth',
BORDER_LEFT_WIDTH = 'borderLeftWidth',
BORDER_RIGHT_WIDTH = 'borderRightWidth',
BORDER_TOP_WIDTH = 'borderTopWidth',
BORDER = 'border',
BOTTOM = 'bottom',
CON = 'con',
CONSTRAIN = 'constrain',
HOST = 'host',
LEFT = 'left',
MAX_HEIGHT = 'maxHeight',
MAX_WIDTH = 'maxWidth',
MIN_HEIGHT = 'minHeight',
MIN_WIDTH = 'minWidth',
NODE = 'node',
OFFSET_HEIGHT = 'offsetHeight',
OFFSET_WIDTH = 'offsetWidth',
PRESEVE_RATIO = 'preserveRatio',
REGION = 'region',
RESIZE_CONTRAINED = 'resizeConstrained',
RIGHT = 'right',
TICK_X = 'tickX',
TICK_Y = 'tickY',
TOP = 'top',
WIDTH = 'width',
VIEW = 'view',
VIEWPORT_REGION = 'viewportRegion';
function ResizeConstrained() {
ResizeConstrained.superclass.constructor.apply(this, arguments);
}
Y.mix(ResizeConstrained, {
NAME: RESIZE_CONTRAINED,
NS: CON,
ATTRS: {
/**
* Will attempt to constrain the resize node to the boundaries. Arguments:constrain
* surrounding information retrieved from
* _getBoxSurroundingInfo.
*
* @property constrainSurrounding
* @type Object
* @default null
*/
constrainSurrounding: null,
initializer: function() {
var instance = this,
host = instance.get(HOST);
host.delegate.dd.plug(
Y.Plugin.DDConstrained,
{
tickX: instance.get(TICK_X),
tickY: instance.get(TICK_Y)
}
);
host.after('resize:align', Y.bind(instance._handleResizeAlignEvent, instance));
host.on('resize:start', Y.bind(instance._handleResizeStartEvent, instance));
},
/**
* Helper method to update the current values on
* info to respect the
* constrain node.
*
* @method _checkConstrain
* @param {String} axis 'top' or 'left'
* @param {String} axisConstrain 'bottom' or 'right'
* @param {String} offset 'offsetHeight' or 'offsetWidth'
* @protected
*/
_checkConstrain: function(axis, axisConstrain, offset) {
var instance = this,
point1,
point1Constrain,
point2,
point2Constrain,
host = instance.get(HOST),
info = host.info,
constrainBorders = instance.constrainSurrounding.border,
region = instance._getConstrainRegion();
if (region) {
point1 = info[axis] + info[offset];
point1Constrain = region[axisConstrain] - toNumber(constrainBorders[capitalize(BORDER, axisConstrain, WIDTH)]);
if (point1 >= point1Constrain) {
info[offset] -= (point1 - point1Constrain);
}
point2 = info[axis];
point2Constrain = region[axis] + toNumber(constrainBorders[capitalize(BORDER, axis, WIDTH)]);
if (point2 <= point2Constrain) {
info[axis] += (point2Constrain - point2);
info[offset] -= (point2Constrain - point2);
}
}
},
/**
* Update the current values on info
* to respect the maxHeight and minHeight.
*
* @method _checkHeight
* @protected
*/
_checkHeight: function() {
var instance = this,
host = instance.get(HOST),
info = host.info,
maxHeight = (instance.get(MAX_HEIGHT) + host.totalVSurrounding),
minHeight = (instance.get(MIN_HEIGHT) + host.totalVSurrounding);
instance._checkConstrain(TOP, BOTTOM, OFFSET_HEIGHT);
if (info.offsetHeight > maxHeight) {
host._checkSize(OFFSET_HEIGHT, maxHeight);
}
if (info.offsetHeight < minHeight) {
host._checkSize(OFFSET_HEIGHT, minHeight);
}
},
/**
* Update the current values on info
* calculating the correct ratio for the other values.
*
* @method _checkRatio
* @protected
*/
_checkRatio: function() {
var instance = this,
host = instance.get(HOST),
info = host.info,
originalInfo = host.originalInfo,
oWidth = originalInfo.offsetWidth,
oHeight = originalInfo.offsetHeight,
oTop = originalInfo.top,
oLeft = originalInfo.left,
oBottom = originalInfo.bottom,
oRight = originalInfo.right,
// wRatio/hRatio functions keep the ratio information always synced with the current info information
// RETURN: percentage how much width/height has changed from the original width/height
wRatio = function() {
return (info.offsetWidth/oWidth);
},
hRatio = function() {
return (info.offsetHeight/oHeight);
},
isClosestToHeight = host.changeHeightHandles,
bottomDiff,
constrainBorders,
constrainRegion,
leftDiff,
rightDiff,
topDiff;
// check whether the resizable node is closest to height or not
if (instance.get(CONSTRAIN) && host.changeHeightHandles && host.changeWidthHandles) {
constrainRegion = instance._getConstrainRegion();
constrainBorders = instance.constrainSurrounding.border;
bottomDiff = (constrainRegion.bottom - toNumber(constrainBorders[BORDER_BOTTOM_WIDTH])) - oBottom;
leftDiff = oLeft - (constrainRegion.left + toNumber(constrainBorders[BORDER_LEFT_WIDTH]));
rightDiff = (constrainRegion.right - toNumber(constrainBorders[BORDER_RIGHT_WIDTH])) - oRight;
topDiff = oTop - (constrainRegion.top + toNumber(constrainBorders[BORDER_TOP_WIDTH]));
if (host.changeLeftHandles && host.changeTopHandles) {
isClosestToHeight = (topDiff < leftDiff);
}
else if (host.changeLeftHandles) {
isClosestToHeight = (bottomDiff < leftDiff);
}
else if (host.changeTopHandles) {
isClosestToHeight = (topDiff < rightDiff);
}
else {
isClosestToHeight = (bottomDiff < rightDiff);
}
}
// when the height of the resizable element touch the border of the constrain first
// force the offsetWidth to be calculated based on the height ratio
if (isClosestToHeight) {
info.offsetWidth = oWidth*hRatio();
instance._checkWidth();
info.offsetHeight = oHeight*wRatio();
}
else {
info.offsetHeight = oHeight*wRatio();
instance._checkHeight();
info.offsetWidth = oWidth*hRatio();
}
// fixing the top on handles which are able to change top
// the idea here is change the top based on how much the height has changed instead of follow the dy
if (host.changeTopHandles) {
info.top = oTop + (oHeight - info.offsetHeight);
}
// fixing the left on handles which are able to change left
// the idea here is change the left based on how much the width has changed instead of follow the dx
if (host.changeLeftHandles) {
info.left = oLeft + (oWidth - info.offsetWidth);
}
// rounding values to avoid pixel jumpings
Y.each(info, function(value, key) {
if (isNumber(value)) {
info[key] = Math.round(value);
}
});
},
/**
* Check whether the resizable node is inside the constrain region.
*
* @method _checkRegion
* @protected
* @return {boolean}
*/
_checkRegion: function() {
var instance = this,
host = instance.get(HOST),
region = instance._getConstrainRegion();
return Y.DOM.inRegion(null, region, true, host.info);
},
/**
* Update the current values on info
* to respect the maxWidth and minWidth.
*
* @method _checkWidth
* @protected
*/
_checkWidth: function() {
var instance = this,
host = instance.get(HOST),
info = host.info,
maxWidth = (instance.get(MAX_WIDTH) + host.totalHSurrounding),
minWidth = (instance.get(MIN_WIDTH) + host.totalHSurrounding);
instance._checkConstrain(LEFT, RIGHT, OFFSET_WIDTH);
if (info.offsetWidth < minWidth) {
host._checkSize(OFFSET_WIDTH, minWidth);
}
if (info.offsetWidth > maxWidth) {
host._checkSize(OFFSET_WIDTH, maxWidth);
}
},
/**
* Get the constrain region based on the constrain
* attribute.
*
* @method _getConstrainRegion
* @protected
* @return {Object Region}
*/
_getConstrainRegion: function() {
var instance = this,
host = instance.get(HOST),
node = host.get(NODE),
constrain = instance.get(CONSTRAIN),
region = null;
if (constrain) {
if (constrain == VIEW) {
region = node.get(VIEWPORT_REGION);
}
else if (isNode(constrain)) {
region = constrain.get(REGION);
}
else {
region = constrain;
}
}
return region;
},
_handleResizeAlignEvent: function(event) {
var instance = this,
host = instance.get(HOST);
// check the max/min height and locking top when these values are reach
instance._checkHeight();
// check the max/min width and locking left when these values are reach
instance._checkWidth();
// calculating the ratio, for proportionally resizing
if (instance.get(PRESEVE_RATIO)) {
instance._checkRatio();
}
if (instance.get(CONSTRAIN) && !instance._checkRegion()) {
host.info = host.lastInfo;
}
},
_handleResizeStartEvent: function(event) {
var instance = this,
constrain = instance.get(CONSTRAIN),
host = instance.get(HOST);
instance.constrainSurrounding = host._getBoxSurroundingInfo(constrain);
}
});
Y.namespace('Plugin');
Y.Plugin.ResizeConstrained = ResizeConstrained;
}, '3.3.0' ,{requires:['resize-base', 'plugin'], skinnable:false});
YUI.add('resize', function(Y){}, '3.3.0' ,{use:['resize-base', 'resize-proxy', 'resize-constrain']});