QWebFrame::evaluateJavaScript vs. script-tag in HTML
I want to develop an application that uses QtWebKit and JQuery.
What I need to know is, is there any difference between reading JQuery from a file and evaluateJavaScript it, or embedding it as a script tag within the "page" that is displayed within the widget?
EDIT: It seems that I have this figured out at least partially. evaluateJavaScript will apparently work reliably; but if I do
baseurl = QUrl.fromLocalFile(
QDir.current().absoluteFilePath("doesntexist.html"));
view.setHtml(
u"""
<html>
<head>
<script type="text/javascript"
src="jquery-1.4.2.js">
</script>
</head>
<body></body>
</html>""", baseurl);
The file is never even read from disk (checked with inotify). this also affects baseurl being initialized with either
QUrl("file:/")
QUrl(".");
QUrl();
or
QUrl("file://")
And I have also tried to change the script src parameter to absolute paths on the hard drive, and to a relative path with and without "./" in front.
How do I do it right (aside from the Qt Resource System) to get the script tag to work with 开发者_StackOverflowlocal js files? Is this just poorly documented, or am I missing something?
You can use the Qt Resource System and modify your html to something like this
<script type="text/javascript"
src=":/jquery-1.4.2.js">
and don't forget the call macro Q_INIT_RESOURCE in main
or using the evaluateJavaScript
connect(view, SIGNAL(loadFinished(bool)), this, SLOT(loadJQuery()));
...
void MainWindow::loadJQuery()
{
QFile file("jquery-1.4.2.js");
file.open(QFile::ReadOnly);
view->page()->mainFrame()->evaluateJavaScript(file.readAll());
}
I guess using the resource systems is better.
加载中,请稍侯......
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