Adds filter to Pages widget to allow extended configuration

[scompt]

In a couple WordPress installs, I've wanted to use the Pages widget to display the page navigation in the sidebar, but only wanted to go down a certain depth. Unfortunately, the widget doesn't support that option of wp_list_pages, so I've either resorted to copying the code to my functions.php file and modifying it or installing one of the plugins that been developed to fill the need. Either way, it seems a bit heavy-handed for a simple "depth=1".

This patch adds a filter to the wp_widget_pages function. This is identical to the existing filter in the wp_widget_links function.

​wp-hackers discussion

[scompt]

adds filter to wp_widget_pages function

[jeremyclarke]

+1

I like the idea and tested teh patch and it works fine. The filter name is ugly but matches the widgets_links_args one.

[FFEMTcJ]

Postponing enhancements to 2.8

[ryan]

Patch needs refresh. Widgets moved to default-widgets.php.

[janeforshort]

Punting to be evaluated in next development cycle due to time constraints.

[Denis-de-Bernardy]

See #9780