Provide utility "loading" booleans on WebPage object

[detro]

[email protected] commented:

It would be useful if the WebPage object would provide an easy way to detect if a page is loading or not.

While that is obviously done using "loadStarted" and "loadFinished" event handling, it still something surprisingly we don't provide directly as API.

Also, what about the "progress"? We have no way to report about "how far is the page from being fully loaded".

I propose 2 properties:

• [bool] page.loading
• [int (between 0 and 100)] page.loadingProgress

Also, this feature will help to implement better the "wait for page load on click" in GhostDriver: currently the implementation depends on the "loadStarted" and "loadFinished" but complex scenarios, when only a FRAME or a new PAGE are loading are quite tricky to implement and monitor.
This could make for an easy way to recursively report if any of the frames or pages is loading or not.

Disclaimer:
This issue was migrated on 2013-03-15 from the project's former issue tracker on Google Code, Issue #1091.
🌟   3 people had starred this issue at the time of migration.

[detro]

[email protected] commented:

Implemented in https://github.com/detro/phantomjs/commit/237c4462e05bf86e14352e41a54d9c30128be59f

[ariya]

[email protected] commented:

Looks good! Probably just need some sanity checks (for the properties) in the unit tests.

[arthurbailao]

[email protected] commented:

It would be useful too if the WebPage emit a loadProgress(int) signal, something like this:

connect(m_customWebPage, SIGNAL(loadProgress(int)), this, SIGNAL(loadProgress(int)), Qt::QueuedConnection);

Then, on webpage.js define a javascript interface named onLoadProgress:

definePageSignalHandler(page, handlers, "onLoadProgress", "loadProgress");

[detro]

This will be implemented by #11146.

[wachunga]

+1 to @arthurbailao suggestion of a load progress callback.