Accessing the DOM

[jferguson]

Hello,

I'm trying to write a basic webspider and reviewing my options in doing so I came across Qt's QtWebEngine.

It appears that my only option for accessing the DOM is via javascript injected into the rendered page, but that appears to be one-sided in the sense that I can, e.g., highlight all links, but I have no mechanism for communicating which nodes are links from JS back to C++.

Is my understanding there correct?

[mpergand]

Hi @jferguson ,

Have a look at:
https://doc.qt.io/qt-6/qwebchannel.html

[jferguson]

@mpergand Hi, thanks. Looking at it briefly the answer seems to be to delete Qt and find another option-- injecting another javascript seems absurd. However, thank you none the less because that does appear to solve the problem.

[jferguson]

EDIT: In fairness I know this isn't a Qt related problem, Qt actually offers the (ugly, hackish) solution-- its a byproduct of the multi-process architecture of Chrome (and Webkit has the same limitation)