167 lines
3.0 KiB
JavaScript
167 lines
3.0 KiB
JavaScript
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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function init()
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{ //embedded in the doc
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//ndeSetTextSize();
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}
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function checkBrowser(){
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if (!document.getElementsByTagName){
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return true;
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}
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else{
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return false;
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}
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}
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function ndeSetTextSize(chgsize,rs)
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{
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var startSize;
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var newSize;
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if (!checkBrowser)
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{
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return;
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}
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startSize = parseInt(ndeGetDocTextSize());
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if (!startSize)
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{
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startSize = 16;
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}
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switch (chgsize)
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{
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case 'incr':
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newSize = startSize + 2;
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break;
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case 'decr':
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newSize = startSize - 2;
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break;
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case 'reset':
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if (rs) {newSize = rs;} else {newSize = 16;}
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break;
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default:
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try{
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newSize = parseInt(ndeReadCookie("nde-textsize"));
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}
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catch(e){
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alert(e);
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}
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if (!newSize || newSize == 'NaN')
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{
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newSize = startSize;
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}
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break;
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}
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if (newSize < 10)
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{
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newSize = 10;
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}
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newSize += 'px';
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document.getElementsByTagName('html')[0].style.fontSize = newSize;
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document.getElementsByTagName('body')[0].style.fontSize = newSize;
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ndeCreateCookie("nde-textsize", newSize, 365);
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}
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function ndeGetDocTextSize()
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{
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if (!checkBrowser)
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{
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return 0;
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}
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var size = 0;
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var body = document.getElementsByTagName('body')[0];
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if (body.style && body.style.fontSize)
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{
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size = body.style.fontSize;
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}
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else if (typeof(getComputedStyle) != 'undefined')
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{
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size = getComputedStyle(body,'').getPropertyValue('font-size');
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}
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else if (body.currentStyle)
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{
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size = body.currentStyle.fontSize;
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}
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//fix IE bug
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if( isNaN(size)){
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if(size.substring(size.length-1)=="%"){
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return
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}
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}
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return size;
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}
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function ndeCreateCookie(name,value,days)
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{
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var cookie = name + "=" + value + ";";
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if (days)
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{
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var date = new Date();
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date.setTime(date.getTime()+(days*24*60*60*1000));
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cookie += " expires=" + date.toGMTString() + ";";
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}
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cookie += " path=/";
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document.cookie = cookie;
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}
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function ndeReadCookie(name)
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{
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var nameEQ = name + "=";
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var ca = document.cookie.split(';');
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for(var i = 0; i < ca.length; i++)
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{
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var c = ca[i];
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while (c.charAt(0) == ' ')
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{
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c = c.substring(1, c.length);
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}
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ctest = c.substring(0,name.length);
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if(ctest == name){
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return c.substring(nameEQ.length,c.length);
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}
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}
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return null;
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}
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