- Mouse left click and long click gestures are shared between
the Pencil and regular Touch inputs.
- Mouse right click and long click have Pencil specific gestures.
The callback functions touchesBegan, touchesMoved and touchesEnded
are from now only used for mouse pointer movements. Only one touch
is then required to be tracked.
Disable multi-touch in view to accomplish this. The setting does
not affect the gesture recognizers attached to the view, only the
touchesBegan, touchesMoved and touchesEnded callbacks are affected
that only the actions for the first touch in view are sent.
The Apple TV remote sends touch events of type UITouchTypeIndirect
since it's not touches made on the screen. In iOS touchpads might
send UITouchTypeIndirect touch events as well as mouse move events.
So in iOS we want to block touches of type UITouchTypeIndirect
while in TV OS we want them to be handled.
Touchpad mode for touch events is also required for the Apple TV
remote to work properly. Make sure to disable the possibility to
disable touchpad mode in TV OS.
Previously the mouse position in the view was tracked using the
pointerPosition property. Scaling and relative mosue movements
were calculated in the view using screen properties stored in the
videoContext structure. Now when moving to iOSGraphicsManager all
that handling will be handled by the WindowedGraphicsManager,
which the iOSGraphicsManager inherit.
Rework the input code to send down pure x and y position values,
scaled according to the view content scale factor.
Remove code related to mouse movement that is no longer needed.
The Apple TV remote has a touch area which functions as a touch
controller. It also has a few buttons that can be programmed for
different actions.
The "touchpad mode" is not really relevant for the Apple TV remote.
However the pointer should be moved when swiping on the touch area
on the remote. Since we don't want to generate actions on touchBegan
and touchEnded for the remote, make sure these are only triggered if
the touch is made on direct contact with the screen, UITouchTypeDirect.
Implement the button handling by implement the microGamepad profile in
the GamepadController class. Only buttons A, X and the menu buttons are
relevant since the touch area is using the touch controller class.
The tvOS simulator however doesn't call the lambda functions defined for
the microGamepad buttons, hence the implementation of the "pressesBegan"
and "pressesEnded" which is called instead when running the simulator.
Implement common handling of the menu button. If the menu button is
pressed the soft keyboard will be shown. If pressing the menu button
again the soft keyboard will be hidden. If pressing the menu button
a third time the application will be suspended.
Implement new gesture recognizers that can be used with the Apple TV
remote. Up/down/left/right actions are triggered on press on the arrow
buttons, or tap on the edges of the touch area.
A long press, 5 seconds, of "Play/Pause" button toggles Mouse-click-and-
drag mode needed by some games.
"Touchpad mode" is a mode where the mouse cursor is moved based on touch
movements rather on clicks. The problem was that when "touchpad mode"
was enabled it was very hard to click on items because the cursor moved
on every single click.
Make the action occur based on the current pointer position rather on
the touch location when in "touchpad mode".
Make the movement more intuitive when in "touchpad mode" by calculating
the delta of locations of touches and update the pointerPosition based
on that. That will give a feeling of using a real touchpad where the
location of where the touch occur doesn't matter for the cursor.
This will solve issue #13917
Move touch inputs to a TouchController class to move some logic from the
iPhoneView class. Only do this for touches on screen since connected
trackpads can generate touches as well. The latter ones are of type
UITouchTypeIndirectPointer while touches on screen are of type
UITouchTypeDirect. They are separated thanks to the preference key
UIApplicationSupportsIndirectInputEvents set to YES in Info.plist.
Without the preference above, there is no way to distinguish touches
from screen from a trackpad.
