5e6968db63
Because we only hide the surface when the clip rect got empty but never showed it again if it got non-empty, app windows disappeared after moving the docked stack divider to the edge of the screen. Now we reshow the surfaces if the clip-rect gets non-empty. However, this introduces another bug while dismissing the docked stack: Because we move all windows to the fullscreen stack, we resize them but until the app transition starts, it can take a while and during this time the app surface would be visible with the wrong bounds. To fix this, we notify the windows that we are repositioning ourselves in our stack. When applying the clip-rect, we detect that situation and then we set the clip rect to empty if it was just empty before and we just moved in the stack, to fix this very specific issue. I'm really not proud of this solution but at this point we can't revisit how app transitions are executed in terms of timing and ordering, so I thought this little hack is the best solution at this point. Bug: 26588506 Change-Id: I78305f7f7ef6c3da3c126a58d751117fcee23ca9