From 0af26c4fe7ab9d3d2bfe08566b5b15a677998b2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kristian=20H=C3=B8gsberg?= <krh@bitplanet.net>
Date: Fri, 26 Jul 2013 10:43:26 -0700
Subject: [PATCH] evdev: Suport old-style single-touch touch screens

These screens send only BTN_TOUCH and ABS_X/Y.
---
 src/evdev.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/evdev.c b/src/evdev.c
index dd3e2c9f..5ad4d6b1 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -83,6 +83,11 @@ evdev_process_key(struct evdev_device *device, struct input_event *e, int time)
 					 WL_POINTER_BUTTON_STATE_RELEASED);
 		break;
 
+	case BTN_TOUCH:
+		if (e->value == 0 && !device->is_mt)
+			notify_touch(device->seat, time, device->mt.slot, 0, 0,
+				     WL_TOUCH_UP);
+		break;
 	default:
 		notify_key(device->seat,
 			   time, e->code,
@@ -295,7 +300,16 @@ evdev_flush_motion(struct evdev_device *device, uint32_t time)
 		weston_output_transform_coordinate(device->output,
 						   device->abs.x,
 						   device->abs.y, &x, &y);
-		notify_motion_absolute(master, time, x, y);
+
+		if (device->caps & EVDEV_TOUCH) {
+			if (master->num_tp == 0)
+				notify_touch(master, time, 0,
+					     x, y, WL_TOUCH_DOWN);
+			else
+				notify_touch(master, time, 0,
+					     x, y, WL_TOUCH_MOTION);
+		} else
+			notify_motion_absolute(master, time, x, y);
 		device->pending_events &= ~EVDEV_ABSOLUTE_MOTION;
 	}
 }
@@ -482,6 +496,10 @@ evdev_handle_device(struct evdev_device *device)
 				break;
 			}
 		}
+		if (TEST_BIT(key_bits, BTN_TOUCH)) {
+			device->caps |= EVDEV_TOUCH;
+		}
+
 	}
 	if (TEST_BIT(ev_bits, EV_LED)) {
 		device->caps |= EVDEV_KEYBOARD;