input-inhibit: remove support for protocol

The only valid use-case for this as far as I'm concerned is lockscreens,
which will now be supported through ext-session-lock-v1.

doc/riverctl.1.scd

@@ -157,8 +157,8 @@ are ignored by river.
 Mappings are modal in river. Each mapping is associated with a mode and is
 only active while in that mode. There are two special modes: "normal" and
 "locked". The normal mode is the initial mode on startup. The locked mode
-is automatically entered while an input inhibitor (such as a lockscreen)
-is active. It cannot be entered or exited manually.
+is automatically entered while a lock screen is active. It cannot be entered
+or exited manually.
 
 The following modifiers are available for use in mappings:
 

river/Cursor.zig

@@ -1064,13 +1064,8 @@ fn passthrough(self: *Self, time: u32) void {
     assert(self.mode == .passthrough);
 
     if (self.surfaceAt()) |result| {
-        // If input is allowed on the surface, send pointer enter and motion
-        // events. Note that wlroots won't actually send an enter event if
-        // the surface has already been entered.
-        if (server.input_manager.inputAllowed(result.surface)) {
         self.seat.wlr_seat.pointerNotifyEnter(result.surface, result.sx, result.sy);
         self.seat.wlr_seat.pointerNotifyMotion(time, result.sx, result.sy);
-        }
     } else {
         // There is either no surface under the cursor or input is disallowed
         // Reset the cursor image to the default and clear focus.

river/InputManager.zig

@@ -40,7 +40,6 @@ const log = std.log.scoped(.input_manager);
 new_input: wl.Listener(*wlr.InputDevice) = wl.Listener(*wlr.InputDevice).init(handleNewInput),
 
 idle: *wlr.Idle,
-input_inhibit_manager: *wlr.InputInhibitManager,
 pointer_constraints: *wlr.PointerConstraintsV1,
 relative_pointer_manager: *wlr.RelativePointerManagerV1,
 virtual_pointer_manager: *wlr.VirtualPointerManagerV1,
@@ -52,10 +51,6 @@ seats: std.TailQueue(Seat) = .{},
 
 exclusive_client: ?*wl.Client = null,
 
-inhibit_activate: wl.Listener(*wlr.InputInhibitManager) =
-    wl.Listener(*wlr.InputInhibitManager).init(handleInhibitActivate),
-inhibit_deactivate: wl.Listener(*wlr.InputInhibitManager) =
-    wl.Listener(*wlr.InputInhibitManager).init(handleInhibitDeactivate),
 new_pointer_constraint: wl.Listener(*wlr.PointerConstraintV1) =
     wl.Listener(*wlr.PointerConstraintV1).init(handleNewPointerConstraint),
 new_virtual_pointer: wl.Listener(*wlr.VirtualPointerManagerV1.event.NewPointer) =
@@ -70,7 +65,6 @@ pub fn init(self: *Self) !void {
     self.* = .{
         // These are automatically freed when the display is destroyed
         .idle = try wlr.Idle.create(server.wl_server),
-        .input_inhibit_manager = try wlr.InputInhibitManager.create(server.wl_server),
         .pointer_constraints = try wlr.PointerConstraintsV1.create(server.wl_server),
         .relative_pointer_manager = try wlr.RelativePointerManagerV1.create(server.wl_server),
         .virtual_pointer_manager = try wlr.VirtualPointerManagerV1.create(server.wl_server),
@@ -87,8 +81,6 @@ pub fn init(self: *Self) !void {
     if (build_options.xwayland) server.xwayland.setSeat(self.defaultSeat().wlr_seat);
 
     server.backend.events.new_input.add(&self.new_input);
-    self.input_inhibit_manager.events.activate.add(&self.inhibit_activate);
-    self.input_inhibit_manager.events.deactivate.add(&self.inhibit_deactivate);
     self.pointer_constraints.events.new_constraint.add(&self.new_pointer_constraint);
     self.virtual_pointer_manager.events.new_virtual_pointer.add(&self.new_virtual_pointer);
     self.virtual_keyboard_manager.events.new_virtual_keyboard.add(&self.new_virtual_keyboard);
@@ -126,56 +118,6 @@ pub fn updateCursorState(self: Self) void {
     while (it) |node| : (it = node.next) node.data.cursor.updateState();
 }
 
-fn handleInhibitActivate(
-    listener: *wl.Listener(*wlr.InputInhibitManager),
-    _: *wlr.InputInhibitManager,
-) void {
-    const self = @fieldParentPtr(Self, "inhibit_activate", listener);
-
-    log.debug("input inhibitor activated", .{});
-
-    var seat_it = self.seats.first;
-    while (seat_it) |seat_node| : (seat_it = seat_node.next) {
-        // Clear focus of all seats
-        seat_node.data.setFocusRaw(.{ .none = {} });
-
-        // Enter locked mode
-        seat_node.data.prev_mode_id = seat_node.data.mode_id;
-        seat_node.data.enterMode(1);
-    }
-
-    self.exclusive_client = self.input_inhibit_manager.active_client;
-}
-
-fn handleInhibitDeactivate(
-    listener: *wl.Listener(*wlr.InputInhibitManager),
-    _: *wlr.InputInhibitManager,
-) void {
-    const self = @fieldParentPtr(Self, "inhibit_deactivate", listener);
-
-    log.debug("input inhibitor deactivated", .{});
-
-    self.exclusive_client = null;
-
-    // Calling arrangeLayers() like this ensures that any top or overlay,
-    // keyboard-interactive surfaces will re-grab focus.
-    var output_it = server.root.outputs.first;
-    while (output_it) |output_node| : (output_it = output_node.next) {
-        output_node.data.arrangeLayers(.mapped);
-    }
-
-    // After ensuring that any possible layer surface focus grab has occured,
-    // have each Seat handle focus and enter their previous mode.
-    var seat_it = self.seats.first;
-    while (seat_it) |seat_node| : (seat_it = seat_node.next) {
-        const seat = &seat_node.data;
-        seat.enterMode(seat.prev_mode_id);
-        seat.focus(null);
-    }
-
-    server.root.startTransaction();
-}
-
 fn handleNewInput(listener: *wl.Listener(*wlr.InputDevice), wlr_device: *wlr.InputDevice) void {
     const self = @fieldParentPtr(Self, "new_input", listener);
 

river/Seat.zig

@@ -223,10 +223,6 @@ pub fn setFocusRaw(self: *Self, new_focus: FocusTarget) void {
         .none => null,
     };
 
-    // If input is not allowed on the target surface (e.g. due to an active
-    // input inhibitor) do not set focus. If there is no target surface we
-    // still clear the focus.
-    if (if (target_surface) |wlr_surface| server.input_manager.inputAllowed(wlr_surface) else true) {
     // First clear the current focus
     switch (self.focused) {
         .view => |view| {
@@ -269,7 +265,6 @@ pub fn setFocusRaw(self: *Self, new_focus: FocusTarget) void {
             self.cursor.constraint = null;
         }
     }
-    }
 
     // Inform any clients tracking status of the change
     var it = self.status_trackers.first;