In one embodiment, a method includes receiving a touch input within a particular region of a display area of the computing device. The display area presents a user interface (UI) including a number of views organized in a hierarchy. One or more of the views has a gesture recognizer configured to process a touch input detected within the regions of the display area associated with each of the views. Each of the views corresponds to one or more regions of the display area. One or more of the gesture recognizers has one or more intervention conditions. A particular one of the views is a default view to process the touch input. The method also includes evaluating the intervention conditions to identify a particular one of the views from among the number of views to process the touch input.