for
<?php print_container_start(true, '', 'header-home'); ?>
Can someone (perhaps Urs) explain why the change?
And, will my themes built on 1.8 infrastructures be missing something if I do not make this change?
I ask because themes using this method are not backward compatible with past Moodle versions.Patrick, please read my whole comment under MDL-12221.
One aspect about backwards compatible themes:
1.9 themes can't ever be really compatible to 1.8 because several CLASS names have changed from 1.8 to 1.9.
+1 to implement the enhancement (compatibility arguments not really count).
Different themes for 1.8 and 1.9 are necessary to follow these differences. In these different versions you may also implement the small header changes for 1.9.
@Martin The need for consistent container handling has been brought to recognition with the work on the custom_corners theme. Inconsistency and hacks have not been an issue for many developers until now. I have already been struggling with several Moodle pages due to this inconsistency in the past. I am glad that Petr is working on a solution.
Patrick, why CLASS names have changed I don't know. I saw some changes when I checked the differences from 1.8 to 1.9 CSS code.
What I know is that Petr is going to implement a new version of print_container handling. There will be no more need to use print_container in the themes.
It will still be better to use print_container to avoid some automatically activated internal hacks but you don't need to.