使用Greasemonkey脚本将javascript添加到使用XSLT转换的XML文件中
作者：互联网
在这里继续我的问题-How to transform an XML file with XSLT, using a Greasemonkey script?-我面临另一个问题：
我想在XSL模板中使用一些基本的javascript函数,以控制某些div的显示.但是,无论我如何包括这些javascript函数,它们似乎都无法被识别.我已经进行了很多研究,但似乎无法解决.
我尝试了两件事：
>在XSL模板中的< script>中添加javascript.标签
>附加新的< script> Greasemonkey脚本本身中的标签
我不希望使用jQuery或外部JS文件(我也尝试过)以使其尽可能简单,但是如果这样可以解决问题,我愿意改变整个事情！
无论哪种情况,当我调用函数时,都会得到ReferenceError：x未定义.我确实看到javascript代码很好地位于了最终的HTML结果中.当我使用Firebug附加新的< script>标记具有一个简单的功能,可以向“您好”提示纯HTML页面,然后完美运行.只有在XSLT转换之上完成此操作时,事情才会出错(为简单起见,我仅使用一个简单的函数来显示警报框).
这是我的示例数据：
<?xml version="1.0" encoding="utf-8"?>
<Results>
<Result>
<Listings total="2">
<Res>
<Result index="0">
<id>123456</id>
<name>My Business</name>
<category>Restaurants</category>
<phone>9872365</phone>
</Result>
</Res>
<Res>
<Result index="1">
<id>876553</id>
<name>Some Other Business</name>
<category>Restaurants</category>
<phone>9834756</phone>
</Result>
</Res>
</Listings>
</Result>
</Results>
这是我刚刚添加< script> < head>中的标签标签：
// ==UserScript==
// @name _Test XML Renderer
// @description stylesheet for xml results
// @include *
// @grant none
// ==/UserScript==
var xsl_str = '<?xml version="1.0" encoding="utf-8"?>\n\
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">\n\
<xsl:output method="html"/>\n\
<xsl:template match="/">\n\
<html>\n\
<head><script type="text/javascript">function hello() {alert("hello")};</script></head>\n\
<body>\n\
<table id="results" border="1" cellspacing="0" cellpadding="0">\n\
<thead>\n\
<tr>\n\
<th class="name">id</th>\n\
<th class="name">category ID</th>\n\
<th class="name">name</th>\n\
<th class="name">phone</th>\n\
</tr>\n\
</thead>\n\
<tbody>\n\
<xsl:for-each select="Results/Result/Listings/Res">\n\
<tr>\n\
<td class="small" width="120">\n\
<a href="#" onclick="hello()"><xsl:value-of select="Result/id"/></a>\n\
</td>\n\
<td class="small" width="120">\n\
<xsl:value-of select="Result/category"/>\n\
</td>\n\
<td class="small" width="120">\n\
<xsl:value-of select="Result/name"/>\n\
</td>\n\
<td class="small" width="120">\n\
<xsl:value-of select="Result/phone"/>\n\
</td>\n\
</tr>\n\
</xsl:for-each>\n\
</tbody>\n\
</table>\n\
</body>\n\
</html>\n\
</xsl:template>\n\
</xsl:stylesheet>\n\
';
var processor = new XSLTProcessor ();
var dataXSL = new DOMParser ().parseFromString (xsl_str, "text/xml");
processor.importStylesheet (dataXSL);
var newDoc = processor.transformToDocument (document);
//-- These next lines swap the new, processed doc in for the old one...
window.content = newDoc;
document.replaceChild (
document.importNode (newDoc.documentElement, true),
document.documentElement
);
这是我在XSL模板之外添加“ hello”功能的其他尝试：
// ==UserScript==
// @name _Test XML Renderer
// @description stylesheet for xml results
// @include *
// @grant none
// ==/UserScript==
var xsl_str = '<?xml version="1.0" encoding="utf-8"?>\n\
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">\n\
<xsl:output method="html"/>\n\
<xsl:template match="/">\n\
<html>\n\
<head></head>\n\
<body>\n\
<table id="results" border="1" cellspacing="0" cellpadding="0">\n\
<thead>\n\
<tr>\n\
<th class="name">id</th>\n\
<th class="name">category ID</th>\n\
<th class="name">name</th>\n\
<th class="name">phone</th>\n\
</tr>\n\
</thead>\n\
<tbody>\n\
<xsl:for-each select="Results/Result/Listings/Res">\n\
<tr>\n\
<td class="small" width="120">\n\
<a href="#" onclick="hello()"><xsl:value-of select="Result/id"/></a>\n\
</td>\n\
<td class="small" width="120">\n\
<xsl:value-of select="Result/category"/>\n\
</td>\n\
<td class="small" width="120">\n\
<xsl:value-of select="Result/name"/>\n\
</td>\n\
<td class="small" width="120">\n\
<xsl:value-of select="Result/phone"/>\n\
</td>\n\
</tr>\n\
</xsl:for-each>\n\
</tbody>\n\
</table>\n\
</body>\n\
</html>\n\
</xsl:template>\n\
</xsl:stylesheet>\n\
';
var processor = new XSLTProcessor ();
var dataXSL = new DOMParser ().parseFromString (xsl_str, "text/xml");
processor.importStylesheet (dataXSL);
var newDoc = processor.transformToDocument (document);
var script = "function hello() {alert('hello')};";
var newElem = newDoc.createElement('script');
newElem.type = 'text/javascript';
newElem.appendChild(newDoc.createTextNode(script));
newDoc.getElementsByTagName('head').item(0).appendChild(newElem);
//-- These next lines swap the new, processed doc in for the old one...
window.content = newDoc;
document.replaceChild (
document.importNode (newDoc.documentElement, true),
document.documentElement
);
解决方法:
Don’t use onclick.这对用户脚本来说是三倍,因为存在其他范围和/或沙箱冲突.
另外,尝试将JS添加到XSLT文件/文本中也是一个糟糕的主意,在这种情况下也不需要脚本注入.
使用脚本来执行您需要考虑的所有JS操作.例如：
// ==UserScript==
// @name _XML Renderer with javascript functionality
// @description Stylesheet and javascript for xml results
// @include http://YOUR_SERVER.COM/YOUR_PATH/*.xml
// @resource xslFile Q_17998446_transform.xsl
// @grant GM_getResourceText
// ==/UserScript==
var xsl_str = GM_getResourceText ("xslFile");
var processor = new XSLTProcessor ();
var dataXSL = new DOMParser ().parseFromString (xsl_str, "text/xml");
processor.importStylesheet (dataXSL);
var newDoc = processor.transformToDocument (document);
//-- These next lines swap the new, processed doc in for the old one...
window.content = newDoc;
document.replaceChild (
document.importNode (newDoc.documentElement, true),
document.documentElement
);
//-- Use JS to smarten-up the new document.
var firstCols = document.querySelectorAll ("#results td:first-child");
for (var J = firstCols.length - 1; J >= 0; --J) {
var tdNode = firstCols[J];
tdNode.style.cursor = "pointer";
tdNode.addEventListener ("click", clickCellHandler, false);
}
function clickCellHandler (zEvent) {
var cellContents = zEvent.target.textContent.trim ();
alert ('The clicked cell contains "' + cellContents + '".');
}
其中Q_17998446_transform.xsl是保存在安装脚本的同一文件夹中的文件(可能需要卸载并重新安装脚本).
Q_17998446_transform.xsl包含以下内容：
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="html"/>
<xsl:template match="/">
<html>
<head></head>
<body>
<table id="results" border="1" cellspacing="0" cellpadding="0">
<thead>
<tr>
<th class="name">id</th>
<th class="name">category ID</th>
<th class="name">name</th>
<th class="name">phone</th>
</tr>
</thead>
<tbody>
<xsl:for-each select="Results/Result/Listings/Res">
<tr>
<td class="small" width="120">
<xsl:value-of select="Result/id"/>
</td>
<td class="small" width="120">
<xsl:value-of select="Result/category"/>
</td>
<td class="small" width="120">
<xsl:value-of select="Result/name"/>
</td>
<td class="small" width="120">
<xsl:value-of select="Result/phone"/>
</td>
</tr>
</xsl:for-each>
</tbody>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
当您在适当的XML文件上运行该脚本时,它将单击处理程序添加到第一表列(无标题)中,即“ Web 2.0”方式.
单击第一列单元格之一时,它会发出警报,例如：
The clicked cell contains “876553”.
标签：greasemonkey,xml,xslt,javascript 来源： https://codeday.me/bug/20191122/2063768.html