1 files changed, 177 insertions, 0 deletions

diff --git a/test/grail.c b/test/grail.c
new file mode 100644
index 0000000..3fe20ee
--- /dev/null
+++ b/test/grail.c
@@ -0,0 +1,177 @@
+/*****************************************************************************
+ *
+ * grail - Gesture Recognition And Instantiation Library
+ *
+ * Copyright (C) 2010 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *      Henrik Rydberg <rydberg@bitmath.org>
+ *
+ ****************************************************************************/
+
+#include <grail.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+struct gesture_handler {
+        struct touch_frame frame;
+        struct gesture_client client;
+        struct gesture_dev dev;
+        touch_time_t last_scroll;
+};
+
+static void gh_gesture(struct gesture_client *client,
+                       const struct gesture_event *ev)
+{
+        int i;
+        fprintf(stderr, "gesture %d %lld\n",
+                ev->type, ev->time);
+        switch (ev->type) {
+        case GE_MOVE:
+                fprintf(stderr, "  %d\n", ev->prop[0]);
+                fprintf(stderr, "  %d\n", ev->prop[1]);
+                break;
+        case GE_VSCROLL:
+                fprintf(stderr, "  %d\n", ev->prop[0]);
+                break;
+        }
+}
+
+static void gh_init(struct gesture_handler *gh)
+{
+        memset(gh, 0, sizeof(*gh));
+        gedev_init(&gh->dev, 0);
+        client_init(&gh->client, gh);
+        gh->client.gesture = gh_gesture;
+        gh->client.priority[GE_MOVE] = 1;
+        gh->client.priority[GE_VSCROLL] = 2;
+        gedev_attach_client(&gh->dev, &gh->client);
+}
+
+static void gh_handle(struct gesture_handler *gh,
+                      const struct touch_frame *frame,
+                      touch_time_t time)
+{
+        struct gesture_flag flag;
+        struct gesture_event ev;
+        if (frame->ntouch == 1 || frame->ntouch == 2) {
+                flag.type = GE_MOVE;
+                flag.time = time;
+                flag.state = GS_BEGIN;
+                gedev_flag(&gh->dev, &flag);
+
+                ev.type = GE_MOVE;
+                ev.time = time;
+                ev.prop[0] =
+                        frame->touch[0].prop[TP_POS_X] -
+                        gh->frame.touch[0].prop[TP_POS_X];
+                ev.prop[1] =
+                        frame->touch[0].prop[TP_POS_Y] -
+                        gh->frame.touch[0].prop[TP_POS_Y];
+                if (ev.prop[0] || ev.prop[1])
+                        gedev_event(&gh->dev, &ev);
+
+                flag.time = time + 1;
+                flag.state = GS_END;
+                gedev_flag(&gh->dev, &flag);
+        }
+        if (frame->ntouch == 2) {
+                flag.type = GE_VSCROLL;
+                flag.time = time;
+                flag.state = GS_BEGIN;
+                gedev_flag(&gh->dev, &flag);
+
+                ev.type = GE_VSCROLL;
+                ev.time = time;
+                ev.prop[0] =
+                        frame->touch[0].prop[TP_POS_Y] -
+                        gh->frame.touch[0].prop[TP_POS_Y];
+
+                if (ev.prop[0])
+                        gedev_event(&gh->dev, &ev);
+
+                if (time > gh->last_scroll + 100) {
+                        flag.time = time + 1;
+                        flag.state = GS_END;
+                        gedev_flag(&gh->dev, &flag);
+                        gh->last_scroll = time;
+                }
+        } else {
+                flag.type = GE_VSCROLL;
+                flag.time = time;
+                flag.state = GS_CANCEL;
+                gedev_flag(&gh->dev, &flag);
+        }
+        gedev_sync(&gh->dev);
+        gh->frame = *frame;
+}
+
+static void gh_destroy(struct gesture_handler *gh)
+{
+        gedev_detach_client(&gh->dev, &gh->client);
+        client_destroy(&gh->client);
+        gedev_destroy(&gh->dev);
+}
+
+static void tp_sync(struct touch_engine *engine, touch_time_t time)
+{
+        struct gesture_handler *gh = engine->priv;
+        struct touch_frame *frame = &engine->frame;
+        gh_handle(gh, frame, time);
+}
+
+static void loop_device(struct touch_dev *dev, int fd)
+{
+        struct gesture_handler gh;
+        struct touch_engine engine;
+        gh_init(&gh);
+        touch_engine_init(&engine, tp_sync, &gh);
+        touch_engine_attach(&engine, dev);
+        while (!touch_dev_idle(dev, fd, 5000))
+                touch_dev_pull(dev, fd);
+        touch_engine_detach(&engine, dev);
+        gh_destroy(&gh);
+}
+
+int main(int argc, char *argv[])
+{
+        struct touch_dev dev;
+        int fd;
+        if (argc < 2) {
+                fprintf(stderr, "Usage: mtdev <device>\n");
+                return -1;
+        }
+        fd = open(argv[1], O_RDONLY | O_NONBLOCK);
+        if (fd < 0) {
+                fprintf(stderr, "error: could not open device\n");
+                return -1;
+        }
+        if (ioctl(fd, EVIOCGRAB, 1)) {
+                fprintf(stderr, "error: could not grab the device\n");
+                return -1;
+        }
+        if (touch_dev_open(&dev, fd)) {
+                fprintf(stderr, "error: could not open touch device\n");
+                return -1;
+        }
+        loop_device(&dev, fd);
+        touch_dev_close(&dev, fd);
+        ioctl(fd, EVIOCGRAB, 0);
+        close(fd);
+        return 0;
+}