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/* cbe_util.js $Revision: 0.14 $ |
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* CBE v4.19, Cross-Browser DHTML API from Cross-Browser.com |
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* Copyright (c) 2002 Michael Foster (mike@cross-browser.com) |
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* Distributed under the terms of the GNU LGPL from gnu.org |
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*/ |
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// visit function returns: 0 == stop, 1 == continue, 2 == skip subtree |
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function cbeTraverseTree(order, startNode, visitFunction, data) { |
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cbeTraversePreOrder(startNode, 0, 0, visitFunction, data); |
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} |
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function cbeTraversePreOrder(node, level, branch, vFn, data) { |
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var ret = vFn(node,level,branch,data); |
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if (!ret) return 0; |
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if (ret == 1 && node.firstChild) { |
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var child = node.firstChild; |
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while (child) { |
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if (!level) ++branch; |
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if (!cbeTraversePreOrder(child,level+1,branch,vFn,data)) return 1; |
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child = child.nextSibling; |
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} |
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} |
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return 1; |
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} |
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var cbeImageCount=0; |
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var cbeImageObj = new Array(); |
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var cbeImageName = new Array(); |
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function cbeNewImage(imgName, imgUrl, imgWidth, imgHeight) { |
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var imgObj; |
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if (arguments.length == 4) imgObj = new Image(imgWidth,imgHeight); |
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else imgObj = new Image(); |
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imgObj.src = imgUrl; |
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imgObj.id = imgObj.name = imgName; |
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cbeImageObj[cbeImageCount] = imgObj; |
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cbeImageName[cbeImageCount++] = imgName; |
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return imgObj; |
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} |
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function cbeSetImage(tagImg, preloadedImg) { |
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var t, p; |
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if (typeof(tagImg)=='string') t = cbeGetImageByName(tagImg); |
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else t = tagImg; |
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if (typeof(preloadedImg)=='string') p = cbeGetImageByName(preloadedImg); |
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else p = preloadedImg; |
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t.src = p.src; |
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} |
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function cbeGetImageByName(imgName) { |
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var i, j; |
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if (document.images[imgName]) return document.images[imgName]; |
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if (is.nav4) { |
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for (i = 0; i < cbeAll.length; i++) { |
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if (cbeAll[i].ele.document) { |
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for (j = 0; j < cbeAll[i].ele.document.images.length; j++) { |
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if (imgName == cbeAll[i].ele.document.images[j].name) return cbeAll[i].ele.document.images[j]; |
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} |
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} |
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} |
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} |
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for (i = 0; i < cbeImageName.length; i++) { |
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if (cbeImageName[i] == imgName) return cbeImageObj[i]; |
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} |
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return null; |
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} |
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function cbeGetFormByName(frmName) { |
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var i, j; |
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if (document.forms[frmName]) return document.forms[frmName]; |
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if (is.nav4) { |
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for (i = 0; i < cbeAll.length; i++) { |
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if (cbeAll[i].ele.document) { |
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for (j = 0; j < cbeAll[i].ele.document.forms.length; j++) { |
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if (frmName == cbeAll[i].ele.document.forms[j].name) return cbeAll[i].ele.document.forms[j]; |
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} |
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} |
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} |
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} |
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return null; |
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} |
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// cookie implementations based on code from Netscape Javascript Guide |
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function cbeSetCookie(name, value, expire, path) { |
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document.cookie = name + "=" + escape(value) + ((!expire) ? "" : ("; expires=" + expire.toGMTString())) + "; path=/"; |
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} |
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function cbeGetCookie(name) { |
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var value=null, search=name+"="; |
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if (document.cookie.length > 0) { |
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var offset = document.cookie.indexOf(search); |
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if (offset != -1) { |
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offset += search.length; |
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var end = document.cookie.indexOf(";", offset); |
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if (end == -1) end = document.cookie.length; |
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value = unescape(document.cookie.substring(offset, end)); |
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} |
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} |
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return value; |
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} |
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function cbeGetURLArguments() { |
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var idx = location.href.indexOf('?'); |
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var params = new Array(); |
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if (idx != -1) { |
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var pairs = location.href.substring(idx+1, location.href.length).split('&'); |
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for (var i=0; i<pairs.length; i++) { |
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nameVal = pairs[i].split('='); |
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params[i] = nameVal[1]; |
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params[nameVal[0]] = nameVal[1]; |
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} |
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} |
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return params; |
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} |
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function cbePad(str, finalLen, padChar, left) { |
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if (left) { for (var i=str.length; i<finalLen; ++i) str = padChar + str; } |
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else { for (var i=str.length; i<finalLen; ++i) str += padChar; } |
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return str; |
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} |
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function cbeHexString(n, digits, prefix) { |
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var p = '', n = Math.ceil(n); |
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if (prefix) p = prefix; |
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n = n.toString(16); |
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for (var i=0; i < digits - n.length; ++i) { |
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p += '0'; |
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} |
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return p + n; |
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} |
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function cbeRadians(deg) { return deg * (Math.PI / 180); } |
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function cbeDegrees(rad) { return rad * (180 / Math.PI); } |
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function cbeAddDragResizeListener(cbe) { |
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cbe.addEventListener('dragStart', cbeDragResizeStartListener); |
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cbe.addEventListener('drag', cbeDragResizeListener); |
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} |
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function cbeRemoveDragResizeListener(cbe) { |
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cbe.removeEventListener('dragStart', cbeDragResizeStartListener); |
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cbe.removeEventListener('drag', cbeDragResizeListener); |
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} |
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function cbeDragResizeStartListener(e) { |
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if (e.offsetX > (e.cbeCurrentTarget.width() - 20) && e.offsetY > (e.cbeCurrentTarget.height() - 20)) { |
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e.cbeCurrentTarget.isResizing = true; |
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} |
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else e.cbeCurrentTarget.isResizing = false; |
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} |
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function cbeDragResizeListener(e) { |
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if (e.cbeCurrentTarget.isResizing) e.cbeCurrentTarget.resizeBy(e.dx, e.dy); |
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else e.cbeCurrentTarget.moveBy(e.dx, e.dy); |
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} |
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var cbeUtilJsLoaded = true; |
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// End cbe_util.js |
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