我们有一些PDF表单在非Adobe PDF阅读器中无法正确显示(即WebKit的内置PDF阅读器无法正确显示一些Adobe专有内容)。我们想检测用户何时未安装Adobe的PDF Reader并给他们一些警告,但是我很难确定2014年该如何做。
this script似乎在2011年开始运作。基本上,它循环遍历navigator.plugins
并查找名称为Adobe Acrobat
或Chrome PDF Viewer
的插件。
for(key in navigator.plugins) {
var plugin = navigator.plugins[key];
if(plugin.name == "Adobe Acrobat") return plugin;
}
快闪到今天,Adobe一定已经做了一些更改,因为我已经安装了Adobe Acrobat,但是它似乎不在
navigator.plugins
中!现在在哪里,如何检测到它? 最佳答案
好的,我已经更新了脚本,并且现在在所有浏览器中都可以正常工作:
<!DOCTYPE HTML>
<html>
<head>
<title> New Document </title>
<script>
//
// http://thecodeabode.blogspot.com
// @author: Ben Kitzelman
// @license: FreeBSD: (http://opensource.org/licenses/BSD-2-Clause) Do whatever you like with it
// @updated: 03-03-2013
//
var getAcrobatInfo = function() {
var getBrowserName = function() {
return this.name = this.name || function() {
var userAgent = navigator ? navigator.userAgent.toLowerCase() : "other";
if(userAgent.indexOf("chrome") > -1){
return "chrome";
} else if(userAgent.indexOf("safari") > -1){
return "safari";
} else if(userAgent.indexOf("msie") > -1 || navigator.appVersion.indexOf('Trident/') > 0){
return "ie";
} else if(userAgent.indexOf("firefox") > -1){
return "firefox";
} else {
//return "ie";
return userAgent;
}
}();
};
var getActiveXObject = function(name) {
try { return new ActiveXObject(name); } catch(e) {}
};
var getNavigatorPlugin = function(name) {
for(key in navigator.plugins) {
var plugin = navigator.plugins[key];
if(plugin.name == name) return plugin;
}
};
var getPDFPlugin = function() {
return this.plugin = this.plugin || function() {
if(getBrowserName() == 'ie') {
//
// load the activeX control
// AcroPDF.PDF is used by version 7 and later
// PDF.PdfCtrl is used by version 6 and earlier
return getActiveXObject('AcroPDF.PDF') || getActiveXObject('PDF.PdfCtrl');
} else {
return getNavigatorPlugin('Adobe Acrobat') || getNavigatorPlugin('Chrome PDF Viewer') || getNavigatorPlugin('WebKit built-in PDF');
}
}();
};
var isAcrobatInstalled = function() {
return !!getPDFPlugin();
};
var getAcrobatVersion = function() {
try {
var plugin = getPDFPlugin();
if(getBrowserName() == 'ie') {
var versions = plugin.GetVersions().split(',');
var latest = versions[0].split('=');
return parseFloat(latest[1]);
}
if(plugin.version) return parseInt(plugin.version);
return plugin.name
}
catch(e) {
return null;
}
}
//
// The returned object
//
return {
browser: getBrowserName(),
acrobat: isAcrobatInstalled() ? 'installed' : false,
acrobatVersion: getAcrobatVersion()
};
};
var info = getAcrobatInfo();
alert(info.browser+ " " + info.acrobat + " " + info.acrobatVersion);
</script>
</head>
<body>
</body>
</html>
关于Javascript检测是否安装了Adobe Reader,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/26764842/