#ifndef DISPLAYMODE_INPUT_TAP_H
#define DISPLAYMODE_INPUT_TAP_H
/* The renderer's event tap: what it listens to, and nothing else.
 *
 * This header is the single place that fixes the event mask of the tap the
 * split renderer opens while a split is active. It is published as-is (see
 * /verify/ on the website) so that anyone can read the mask and compare it
 * with the one the running binary reports through the public
 * CGGetEventTapList API. The mask is the only thing this file decides: mouse
 * movement, mouse drags, mouse buttons and the scroll wheel. No keyboard
 * event type is in it, so no keystroke ever reaches the tap. What the
 * renderer does with the events it receives is not part of this file.
 *
 * Measured on the shipped binary (2026-09-17): mask 0xe4000fe, the keyboard
 * bits 0x1c00 (kCGEventKeyDown, kCGEventKeyUp, kCGEventFlagsChanged) absent.
 * test_taps.c keeps it that way. */
#include <ApplicationServices/ApplicationServices.h>

/* The mask, built from the event types by name so the intent is readable. */
static inline CGEventMask DMInputTapMask(void) {
    return CGEventMaskBit(kCGEventMouseMoved) |
      CGEventMaskBit(kCGEventLeftMouseDragged) | CGEventMaskBit(kCGEventRightMouseDragged) |
      CGEventMaskBit(kCGEventOtherMouseDragged) | CGEventMaskBit(kCGEventLeftMouseDown) |
      CGEventMaskBit(kCGEventLeftMouseUp) | CGEventMaskBit(kCGEventRightMouseDown) |
      CGEventMaskBit(kCGEventRightMouseUp) | CGEventMaskBit(kCGEventOtherMouseDown) |
      CGEventMaskBit(kCGEventOtherMouseUp) | CGEventMaskBit(kCGEventScrollWheel);
}
/* Opens the tap: session-wide, inserted at the head, active (the callback may
 * change the event), with the mask above. The caller owns the returned port
 * and enables it. NULL when the system refuses (no Accessibility consent). */
static inline CFMachPortRef DMInputTapCreate(CGEventTapCallBack callback, void *userInfo) {
    return CGEventTapCreate(kCGSessionEventTap, kCGHeadInsertEventTap,
        kCGEventTapOptionDefault, DMInputTapMask(), callback, userInfo);
}
#endif