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/**
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*
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* Copyright 2005 Sabre Airline Solutions
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific language governing permissions
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* and limitations under the License.
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**/
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var Rico = new Object();
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Rico.Corner = {
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round: function(e, options) {
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var e = $(e);
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this._setOptions(options);
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var color = this.options.color;
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if ( this.options.color == "fromElement" )
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color = this._background(e);
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var bgColor = this.options.bgColor;
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if ( this.options.bgColor == "fromParent" )
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bgColor = this._background(e.offsetParent);
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this._roundCornersImpl(e, color, bgColor);
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},
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/** This is a helper function to change the background
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* color of <div> that has had Rico rounded corners added.
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*
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* It seems we cannot just set the background color for the
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* outer <div> so each <span> element used to create the
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* corners must have its background color set individually.
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*
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* @param {DOM} theDiv - A child of the outer <div> that was
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* supplied to the `round` method.
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*
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* @param {String} newColor - The new background color to use.
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*/
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changeColor: function(theDiv, newColor) {
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theDiv.style.backgroundColor = newColor;
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var spanElements = theDiv.parentNode.getElementsByTagName("span");
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for (var currIdx = 0; currIdx < spanElements.length; currIdx++) {
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spanElements[currIdx].style.backgroundColor = newColor;
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}
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},
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/** This is a helper function to change the background
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* opacity of <div> that has had Rico rounded corners added.
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*
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* See changeColor (above) for algorithm explanation
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*
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* @param {DOM} theDiv A child of the outer <div> that was
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* supplied to the `round` method.
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*
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* @param {int} newOpacity The new opacity to use (0-1).
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*/
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changeOpacity: function(theDiv, newOpacity) {
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var mozillaOpacity = newOpacity;
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var ieOpacity = 'alpha(opacity=' + newOpacity * 100 + ')';
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theDiv.style.opacity = mozillaOpacity;
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theDiv.style.filter = ieOpacity;
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var spanElements = theDiv.parentNode.getElementsByTagName("span");
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for (var currIdx = 0; currIdx < spanElements.length; currIdx++) {
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spanElements[currIdx].style.opacity = mozillaOpacity;
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spanElements[currIdx].style.filter = ieOpacity;
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}
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},
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/** this function takes care of redoing the rico cornering
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*
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* you can't just call updateRicoCorners() again and pass it a
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* new options string. you have to first remove the divs that
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* rico puts on top and below the content div.
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*
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* @param {DOM} theDiv - A child of the outer <div> that was
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* supplied to the `round` method.
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*
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* @param {Array} options - list of options
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*/
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reRound: function(theDiv, options) {
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var topRico = theDiv.parentNode.childNodes[0];
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//theDiv would be theDiv.parentNode.childNodes[1]
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var bottomRico = theDiv.parentNode.childNodes[2];
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theDiv.parentNode.removeChild(topRico);
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theDiv.parentNode.removeChild(bottomRico);
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this.round(theDiv.parentNode, options);
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},
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_roundCornersImpl: function(e, color, bgColor) {
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if(this.options.border)
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this._renderBorder(e,bgColor);
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if(this._isTopRounded())
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this._roundTopCorners(e,color,bgColor);
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if(this._isBottomRounded())
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this._roundBottomCorners(e,color,bgColor);
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},
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_renderBorder: function(el,bgColor) {
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var borderValue = "1px solid " + this._borderColor(bgColor);
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var borderL = "border-left: " + borderValue;
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var borderR = "border-right: " + borderValue;
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var style = "style='" + borderL + ";" + borderR + "'";
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el.innerHTML = "<div " + style + ">" + el.innerHTML + "</div>"
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},
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_roundTopCorners: function(el, color, bgColor) {
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var corner = this._createCorner(bgColor);
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for(var i=0 ; i < this.options.numSlices ; i++ )
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corner.appendChild(this._createCornerSlice(color,bgColor,i,"top"));
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el.style.paddingTop = 0;
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el.insertBefore(corner,el.firstChild);
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},
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_roundBottomCorners: function(el, color, bgColor) {
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var corner = this._createCorner(bgColor);
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for(var i=(this.options.numSlices-1) ; i >= 0 ; i-- )
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corner.appendChild(this._createCornerSlice(color,bgColor,i,"bottom"));
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el.style.paddingBottom = 0;
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el.appendChild(corner);
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},
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_createCorner: function(bgColor) {
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var corner = document.createElement("div");
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corner.style.backgroundColor = (this._isTransparent() ? "transparent" : bgColor);
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return corner;
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},
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_createCornerSlice: function(color,bgColor, n, position) {
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var slice = document.createElement("span");
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var inStyle = slice.style;
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inStyle.backgroundColor = color;
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inStyle.display = "block";
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inStyle.height = "1px";
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inStyle.overflow = "hidden";
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inStyle.fontSize = "1px";
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var borderColor = this._borderColor(color,bgColor);
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if ( this.options.border && n == 0 ) {
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inStyle.borderTopStyle = "solid";
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inStyle.borderTopWidth = "1px";
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inStyle.borderLeftWidth = "0px";
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inStyle.borderRightWidth = "0px";
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inStyle.borderBottomWidth = "0px";
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inStyle.height = "0px"; // assumes css compliant box model
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inStyle.borderColor = borderColor;
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}
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else if(borderColor) {
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inStyle.borderColor = borderColor;
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inStyle.borderStyle = "solid";
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inStyle.borderWidth = "0px 1px";
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}
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if ( !this.options.compact && (n == (this.options.numSlices-1)) )
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inStyle.height = "2px";
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this._setMargin(slice, n, position);
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this._setBorder(slice, n, position);
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return slice;
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},
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_setOptions: function(options) {
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this.options = {
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corners : "all",
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color : "fromElement",
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bgColor : "fromParent",
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blend : true,
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border : false,
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compact : false
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}
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Object.extend(this.options, options || {});
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this.options.numSlices = this.options.compact ? 2 : 4;
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if ( this._isTransparent() )
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this.options.blend = false;
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},
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_whichSideTop: function() {
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if ( this._hasString(this.options.corners, "all", "top") )
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return "";
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if ( this.options.corners.indexOf("tl") >= 0 && this.options.corners.indexOf("tr") >= 0 )
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return "";
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if (this.options.corners.indexOf("tl") >= 0)
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return "left";
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else if (this.options.corners.indexOf("tr") >= 0)
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return "right";
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return "";
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},
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_whichSideBottom: function() {
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if ( this._hasString(this.options.corners, "all", "bottom") )
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return "";
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if ( this.options.corners.indexOf("bl")>=0 && this.options.corners.indexOf("br")>=0 )
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return "";
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if(this.options.corners.indexOf("bl") >=0)
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return "left";
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else if(this.options.corners.indexOf("br")>=0)
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return "right";
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return "";
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},
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_borderColor : function(color,bgColor) {
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if ( color == "transparent" )
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return bgColor;
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else if ( this.options.border )
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return this.options.border;
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else if ( this.options.blend )
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return this._blend( bgColor, color );
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else
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return "";
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},
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_setMargin: function(el, n, corners) {
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var marginSize = this._marginSize(n);
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var whichSide = corners == "top" ? this._whichSideTop() : this._whichSideBottom();
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if ( whichSide == "left" ) {
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el.style.marginLeft = marginSize + "px"; el.style.marginRight = "0px";
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}
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else if ( whichSide == "right" ) {
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el.style.marginRight = marginSize + "px"; el.style.marginLeft = "0px";
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}
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else {
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el.style.marginLeft = marginSize + "px"; el.style.marginRight = marginSize + "px";
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}
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},
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_setBorder: function(el,n,corners) {
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var borderSize = this._borderSize(n);
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var whichSide = corners == "top" ? this._whichSideTop() : this._whichSideBottom();
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if ( whichSide == "left" ) {
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el.style.borderLeftWidth = borderSize + "px"; el.style.borderRightWidth = "0px";
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}
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else if ( whichSide == "right" ) {
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el.style.borderRightWidth = borderSize + "px"; el.style.borderLeftWidth = "0px";
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}
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else {
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el.style.borderLeftWidth = borderSize + "px"; el.style.borderRightWidth = borderSize + "px";
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}
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if (this.options.border != false)
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el.style.borderLeftWidth = borderSize + "px"; el.style.borderRightWidth = borderSize + "px";
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},
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_marginSize: function(n) {
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if ( this._isTransparent() )
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return 0;
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var marginSizes = [ 5, 3, 2, 1 ];
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var blendedMarginSizes = [ 3, 2, 1, 0 ];
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var compactMarginSizes = [ 2, 1 ];
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var smBlendedMarginSizes = [ 1, 0 ];
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if ( this.options.compact && this.options.blend )
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return smBlendedMarginSizes[n];
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else if ( this.options.compact )
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return compactMarginSizes[n];
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else if ( this.options.blend )
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return blendedMarginSizes[n];
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else
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return marginSizes[n];
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},
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_borderSize: function(n) {
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var transparentBorderSizes = [ 5, 3, 2, 1 ];
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var blendedBorderSizes = [ 2, 1, 1, 1 ];
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var compactBorderSizes = [ 1, 0 ];
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var actualBorderSizes = [ 0, 2, 0, 0 ];
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if ( this.options.compact && (this.options.blend || this._isTransparent()) )
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return 1;
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else if ( this.options.compact )
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return compactBorderSizes[n];
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else if ( this.options.blend )
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return blendedBorderSizes[n];
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else if ( this.options.border )
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return actualBorderSizes[n];
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else if ( this._isTransparent() )
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return transparentBorderSizes[n];
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return 0;
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},
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_hasString: function(str) { for(var i=1 ; i<arguments.length ; i++) if (str.indexOf(arguments[i]) >= 0) return true; return false; },
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_blend: function(c1, c2) { var cc1 = Rico.Color.createFromHex(c1); cc1.blend(Rico.Color.createFromHex(c2)); return cc1; },
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_background: function(el) { try { return Rico.Color.createColorFromBackground(el).asHex(); } catch(err) { return "#ffffff"; } },
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_isTransparent: function() { return this.options.color == "transparent"; },
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_isTopRounded: function() { return this._hasString(this.options.corners, "all", "top", "tl", "tr"); },
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_isBottomRounded: function() { return this._hasString(this.options.corners, "all", "bottom", "bl", "br"); },
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_hasSingleTextChild: function(el) { return el.childNodes.length == 1 && el.childNodes[0].nodeType == 3; }
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}
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