使用Greasemonkey脚本将javascript添加到使用XSLT转换的XML文件中 [英] Adding javascript to a XML file transformed with XSLT using a Greasemonkey script
问题描述
As follow up to my question here - How to transform an XML file with XSLT, using a Greasemonkey script? - I'm facing another problem:
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.
I want to use some basic javascript functions in my XSL template in order to control the display of some divs. However, no matter how I include these javascript functions, they don't seem to be recognized. I already investigated a lot but I can't seem to get around it.
我尝试了两件事:
- 在
<script>标记中的XSL模板中添加javascript - 在Greasemonkey脚本本身中添加新的
<script>标记
- Adding the javascript in the XSL template in a
<script>tag - Appending a new
<script>tag in the Greasemonkey script itself
我宁愿不使用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！
I would prefer not to use jQuery or an external JS file (which I also tried) to keep it as simple as possible, but if that would solve the problem I'm open to change the whole thing!
无论哪种情况，当我调用该函数时，都会得到一个ReferenceError: x is not defined.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附加具有简单功能的新<script>标记时，该标记会向纯HTML页面发出"hello"警报，然后它可以完美运行.只有在XSLT转换之上完成此操作后，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).
In either case when I call the function I get a ReferenceError: x is not defined. I do see that the javascript code sits nicely in the final HTML result though. When I use Firebug to append a new <script> tag with a simple function that alerts "hello" to a plain html page then it works perfectly. It's only when this is done on top of a XSLT transformation things go wrong (for the sake of simplicity I'm just using a simple function to show an alert box).
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>
这是我第一次在<head>标签中添加<script>标签的尝试:
Here's the first attempt where I just added a <script> tag in the <head> tag:
// ==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"功能的另一种尝试:
Here's my other attempt where I add the "hello" function outside the XSL template:
// ==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
);
推荐答案
请勿使用onclick .用户脚本的数量增加了三倍，因为存在其他范围和/或沙箱冲突.
Don't use onclick. This goes triple for userscripts, as there are additional scope and/or sandbox conflicts.
此外，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.
Also, it's a poor idea to try and add JS into the XSLT file/text, and there is no need for script injection in this case either.
使用脚本来执行您需要考虑的所有JS操作.例如:
Use the script to do whatever JS manipulation you have in mind. For example:
// ==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是保存在与安装脚本相同的文件夹中的文件(您可能需要卸载并重新安装脚本).
where Q_17998446_transform.xsl is a file saved in the same folder from where you install your script (you may need to uninstall, and reinstall, the script).
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，它会在第一个表列(无标题)中添加一个点击处理程序，即"Web 2.0"方式.
When you run that script on the appropriate XML file, it adds a click-handler to the first table column (sans header) -- the "Web 2.0" way.
单击第一列单元格之一时，它会发出警报，例如:
When one of the first-column cells is clicked, it alerts, for example:
单击的单元格包含"876553".
The clicked cell contains "876553".
这篇关于使用Greasemonkey脚本将javascript添加到使用XSLT转换的XML文件中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
