[PATCH weston 16/17] android: add basic evdev input support

[Pekka Paalanen]

Make android_seat based on evdev_seat.

Signed-off-by: Pekka Paalanen <ppaalanen at gmail.com>
---
 src/compositor-android.c |   84 +++++++++++++++++++++++++++++++++++++++++++--
 1 files changed, 80 insertions(+), 4 deletions(-)

diff --git a/src/compositor-android.c b/src/compositor-android.c
index 1657e9c..d19dcc7 100644
--- a/src/compositor-android.c
+++ b/src/compositor-android.c
@@ -20,10 +20,17 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#define _GNU_SOURCE
+
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include <math.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
 
 #include <EGL/egl.h>
 #include <GLES2/gl2.h>
@@ -45,7 +52,7 @@ struct android_output {
 };
 
 struct android_seat {
-	struct weston_seat base;
+	struct evdev_seat evdev;
 };
 
 struct android_compositor {
@@ -231,9 +238,67 @@ android_compositor_add_output(struct android_compositor *compositor,
 }
 
 static void
+android_seat_open_device(struct android_seat *seat, const char *devnode)
+{
+	struct evdev_input_device *device;
+	int fd;
+
+	/* XXX: check the Android excluded list */
+
+	fd = open(devnode, O_RDWR | O_NONBLOCK | O_CLOEXEC);
+	if (fd < 0) {
+		weston_log_continue(STAMP_SPACE "...failed: %s\n",
+				    strerror(errno));
+		return;
+	}
+
+	device = evdev_input_device_create(&seat->evdev, devnode, fd);
+	if (!device) {
+		close(fd);
+	}
+}
+
+static int
+is_dot_or_dotdot(const char *str)
+{
+	return (str[0] == '.' &&
+		(str[1] == 0 || (str[1] == '.' && str[2] == 0)));
+}
+
+static void
+android_seat_scan_devices(struct android_seat *seat, const char *dirpath)
+{
+	int ret;
+	DIR *dir;
+	struct dirent *dent;
+	char *devnode = NULL;
+
+	dir = opendir(dirpath);
+	if (!dir) {
+		weston_log("Could not open input device directory '%s': %s\n",
+			   dirpath, strerror(errno));
+		return;
+	}
+
+	while ((dent = readdir(dir)) != NULL) {
+		if (is_dot_or_dotdot(dent->d_name))
+			continue;
+
+		ret = asprintf(&devnode, "%s/%s", dirpath, dent->d_name);
+		if (ret < 0)
+			continue;
+
+		android_seat_open_device(seat, devnode);
+		free(devnode);
+	}
+
+	closedir(dir);
+}
+
+static void
 android_seat_destroy(struct android_seat *seat)
 {
-	weston_seat_release(&seat->base);
+	evdev_seat_release(&seat->evdev);
 	free(seat);
 }
 
@@ -246,8 +311,17 @@ android_seat_create(struct android_compositor *compositor)
 	if (!seat)
 		return NULL;
 
-	weston_seat_init(&seat->base, &compositor->base);
-	compositor->base.seat = &seat->base;
+	evdev_seat_init(&seat->evdev, &compositor->base);
+	compositor->base.seat = &seat->evdev.base;
+
+	android_seat_scan_devices(seat, "/dev/input");
+
+	evdev_notify_keyboard_focus(&seat->evdev);
+
+	if (wl_list_empty(&seat->evdev.devices_list))
+		weston_log("Warning: no input devices found.\n");
+
+	/* XXX: implement hotplug support */
 
 	return seat;
 }
@@ -414,6 +488,8 @@ android_compositor_create(struct wl_display *display, int argc, char *argv[],
 	struct android_compositor *compositor;
 	struct android_output *output;
 
+	weston_log("initializing android backend\n");
+
 	compositor = calloc(1, sizeof *compositor);
 	if (compositor == NULL)
 		return NULL;
-- 
1.7.8.6