Store the state of the explorer toolbar, locked or unlocked, in the proper
registry location and set the proper toolbar state when initialized.
CORE-9094
- Set `HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\Locked`
to 1 when the explorer toolbar is locked, 0 when the toolbar is unlocked.
- Query `HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\Locked`
when the toolbar is initialized to set the correct locked state.
- Set the default state of the toolbar to locked if the registry key does not
exist, matching the behavior of Windows Server 2003.
In windows the toolbar itself creates the search shell extension. In ros we send a command to the CShellBrowser to let it handle it itself. Use the same command for showing and hiding it.
CBaseBarSite: Ask the CBaseBar to close itself when the x button is pressed.
CBaseBar: Hide the bar and inform its site that it is closing when it gets the close command.
CShellBrowser: Cache the guid of the current vertical bar and use it to report correct command status to the toolbar.
Also implement toggling the Folders, Favorites, History and search commands.
CInternetToolbar: Query the Folders and Search command status from the site so that they can be properly be shown as pressed.