1 files changed, 145 insertions, 0 deletions
diff --git a/Sources/Seat/OwlPointer.m b/Sources/Seat/OwlPointer.m
new file mode 100644
index 0000000..d754754
--- /dev/null
+++ b/Sources/Seat/OwlPointer.m
@@ -0,0 +1,145 @@
+/* This file is part of Owl.
+ *
+ * Copyright © 2019-2021 Sergey Bugaev <bugaevc@gmail.com>
+ *
+ * Owl 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.
+ *
+ * Owl 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 Owl.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#import "OwlPointer.h"
+#import <wayland-server.h>
+#import "OwlServer.h"
+#import "OwlSurface.h"
+
+
+@implementation OwlPointer
+
+static NSMutableArray *pointers;
+
++ (void) initialize {
+    if (pointers == nil) {
+        pointers = [[NSMutableArray alloc] initWithCapacity: 1];
+    }
+}
+
++ (OwlPointer *) pointerForClient: (struct wl_client *) client {
+    for (OwlPointer *pointer in pointers) {
+        struct wl_resource *resource = pointer->_resource;
+        if (client == wl_resource_get_client(resource)) {
+            return pointer;
+        }
+    }
+    return nil;
+}
+
+static void pointer_set_cursor(
+    struct wl_client *client,
+    struct wl_resource *resource,
+    uint32_t serial,
+    struct wl_resource *surface_resource,
+    int32_t hotspot_x,
+    int32_t hotspot_y
+) {
+    // TODO
+}
+
+static const struct wl_pointer_interface pointer_impl = {
+    .set_cursor = pointer_set_cursor
+};
+
+static void pointer_destroy(struct wl_resource *resource) {
+    OwlPointer *self = wl_resource_get_user_data(resource);
+    [pointers removeObjectIdenticalTo: self];
+    [self release];
+}
+
+- (id) initWithResource: (struct wl_resource *) resource {
+    _resource = resource;
+    [pointers addObject: self];
+    wl_resource_set_implementation(
+        resource,
+        &pointer_impl,
+        [self retain],
+        pointer_destroy
+    );
+    return self;
+}
+
+- (struct wl_resource *) resource {
+    return _resource;
+}
+
+- (void) sendEnterSurface: (OwlSurface *) surface atPoint: (NSPoint) point {
+    wl_pointer_send_enter(
+        _resource,
+        [[OwlServer sharedServer] nextSerial],
+        [surface resource],
+        wl_fixed_from_double(point.x),
+        wl_fixed_from_double(point.y)
+    );
+}
+
+- (void) sendMotionAtPoint: (NSPoint) point {
+    wl_pointer_send_motion(
+        _resource,
+        [OwlServer timestamp],
+        wl_fixed_from_double(point.x),
+        wl_fixed_from_double(point.y)
+    );
+}
+
+- (void) sendLeaveSurface: (OwlSurface *) surface {
+    wl_pointer_send_leave(
+        _resource,
+        [[OwlServer sharedServer] nextSerial],
+        [surface resource]
+    );
+}
+
+- (void) sendScrollByX: (CGFloat) deltaX byY: (CGFloat) deltaY {
+    uint32_t timestamp = [OwlServer timestamp];
+
+    if (deltaX != 0.0) {
+        wl_pointer_send_axis(
+            _resource,
+            timestamp,
+            WL_POINTER_AXIS_HORIZONTAL_SCROLL,
+            wl_fixed_from_double(deltaX)
+        );
+    }
+
+    if (deltaY != 0.0) {
+        wl_pointer_send_axis(
+            _resource,
+            timestamp,
+            WL_POINTER_AXIS_VERTICAL_SCROLL,
+            wl_fixed_from_double(-deltaY)
+        );
+    }
+}
+
+- (void) sendButton: (uint32_t) button isPressed: (BOOL) isPressed {
+    enum wl_pointer_button_state state = isPressed
+        ? WL_POINTER_BUTTON_STATE_PRESSED
+        : WL_POINTER_BUTTON_STATE_RELEASED;
+
+    wl_pointer_send_button(
+        _resource,
+        [[OwlServer sharedServer] nextSerial],
+        [OwlServer timestamp],
+        button,
+        state
+    );
+}
+
+@end