TYPO3 Core

Just to show before/after

before in hook:

$parameters['jsLibsCore'] = str_replace('TYPO3.Backend = new TYPO3.Viewport(TYPO3.Viewport.configuration);',
    'Ext.apply(TYPO3.Viewport.configuration.items[1], {
        split: true,
        collapsable: true,
        collapseMode: \'mini\',
        hideCollapseTool: true,
        animCollapse: false
    });
TYPO3.Backend = new TYPO3.Viewport(TYPO3.Viewport.configuration);',
$parameters['jsLibsCore']);

and after:

$pageRenderer->addExtOnReadyCode(" 
    Ext.apply(TYPO3.Viewport.configuration.items[1], {
        split: true,
        collapsable: true,
        collapseMode: 'mini',
        hideCollapseTool: true,
        animCollapse: false
    });
", TRUE);

committed to svn,
4_3 rev 7231
trunk rev 7232