486250 - windowless plugins should default to transparent not opaque

Status: RESOLVED INCOMPLETE

(Core Graveyard :: Plug-ins, defect)

Description

[Karl Tomlinson (:karlt)]

https://developer.mozilla.org/en/Gecko_Plugin_API_Reference/Drawing_and_Event_Handling#Making_a_Plug-in_Transparent

"Windowless plug-ins are transparent by default. If you want to make an opaque windowless plug-in transparent, call the NPN_SetValue method and set NPPVpluginTransparentBool to the value true. The plug-in can call this method any time after specifying that it is a windowless plug-in."

http://hg.mozilla.org/mozilla-central/annotate/b9659463f938/modules/plugin/base/src/nsNPAPIPluginInstance.cpp#l756
nsNPAPIPluginInstance constructor has mTransparent(PR_FALSE)

This may only affect X11 plugins as it looks like only X11/DFB code pays attention to nsPluginInstanceVariable_TransparentBool.

Comment 1

[Benjamin Smedberg]

Resolving old bugs which are likely not relevant any more, since NPAPI plugins are deprecated.