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javascript实例教程(20-10)
hotmetal中使用javascript
5.怎样编写脚本来检查上次修改的日期
这个on_document_activate宏是检查磁盘上的文件是否有与利用hotmetal编辑的当前文档相同的上次修改的日期。它提示用户该做什么以防日期不匹配。以下是这个宏的具体代码：
<macro name="on_document_activate" lang="jscript" id="44" tooltip="hide_on_document_activate"
desc="runs macro: hide_on_document_activate"><![cdata[
// do this for local documents only
if (activedocument.fullname == activedocument.localfullname) {
var name = activedocument.localfullname;
if (application.readablefileexists(name)) { // if document has never been saved, do nothing
var fso = new activexobject("scripting.filesystemobject");
var f = fso.getfile(name);
var newmod = date.parse(f.datelastmodified);
var props = activedocument.customdocumentproperties;
if (props.count != 0) {
oldmod = props.item("lastmod").value;
if (oldmod != newmod) {
var yes = 6;
var no = 7;
var msg = "the disk version of this document has changed from the\n";
msg += "version in memory. do you want to re-open the document?";
var ret = application.messagebox(msg, 36, "document changed");
if (ret == yes) {
activedocument.reload();
}
// reset the timestamp regardless of the user's response
// this will prevent the dialog from always showing
application.run("on_document_open_complete");
}
}
}
}
]]></macro>
我们再检查文件是否装载了： activedocument.fullname == activedocument.localfullname。然后我们验证一下文件是否被保存到磁盘中： application.readablefileexists(name). 类似于前面的on_document_open_complete 宏，我们创建一个activex控件并且提取出文件的上次修改的日期，代码如下：
var fso = new activexobject("scripting.filesystemobject");
var f = fso.getfile(name);
var newmod = date.parse(f.datelastmodified);
