Add the Wayland platform to FLTK 1.4

1 files changed, 209 insertions, 0 deletions

diff --git a/libdecor/src/libdecor-fallback.c b/libdecor/src/libdecor-fallback.c
new file mode 100644
index 000000000..c281197c2
--- /dev/null
+++ b/libdecor/src/libdecor-fallback.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright © 2019 Jonas Ådahl
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "config.h"
+
+#include "libdecor-fallback.h"
+
+#include <poll.h>
+#include <errno.h>
+
+#include "utils.h"
+
+struct libdecor_plugin_fallback {
+	struct libdecor_plugin plugin;
+	struct libdecor *context;
+};
+
+static void
+libdecor_plugin_fallback_destroy(struct libdecor_plugin *plugin)
+{
+	libdecor_plugin_release(plugin);
+	free(plugin);
+}
+
+static int
+libdecor_plugin_fallback_get_fd(struct libdecor_plugin *plugin)
+{
+	struct libdecor_plugin_fallback *plugin_fallback =
+		(struct libdecor_plugin_fallback *) plugin;
+	struct wl_display *wl_display =
+		libdecor_get_wl_display(plugin_fallback->context);
+
+	return wl_display_get_fd(wl_display);
+}
+
+static int
+libdecor_plugin_fallback_dispatch(struct libdecor_plugin *plugin,
+				  int timeout)
+{
+	struct libdecor_plugin_fallback *plugin_fallback =
+		(struct libdecor_plugin_fallback *) plugin;
+	struct wl_display *wl_display =
+		libdecor_get_wl_display(plugin_fallback->context);
+	struct pollfd fds[1];
+	int ret;
+	int dispatch_count = 0;
+
+	while (wl_display_prepare_read(wl_display) != 0)
+		dispatch_count += wl_display_dispatch_pending(wl_display);
+
+	if (wl_display_flush(wl_display) < 0 &&
+	    errno != EAGAIN) {
+		wl_display_cancel_read(wl_display);
+		return -errno;
+	}
+
+	fds[0] = (struct pollfd) { wl_display_get_fd(wl_display), POLLIN };
+
+	ret = poll(fds, ARRAY_SIZE (fds), timeout);
+	if (ret > 0) {
+		if (fds[0].revents & POLLIN) {
+			wl_display_read_events(wl_display);
+			dispatch_count += wl_display_dispatch_pending(wl_display);
+			return dispatch_count;
+		} else {
+			wl_display_cancel_read(wl_display);
+			return dispatch_count;
+		}
+	} else if (ret == 0) {
+		wl_display_cancel_read(wl_display);
+		return dispatch_count;
+	} else {
+		wl_display_cancel_read(wl_display);
+		return -errno;
+	}
+}
+
+static struct libdecor_frame *
+libdecor_plugin_fallback_frame_new(struct libdecor_plugin *plugin)
+{
+	struct libdecor_frame *frame;
+
+	frame = zalloc(sizeof *frame);
+
+	return frame;
+}
+
+static void
+libdecor_plugin_fallback_frame_free(struct libdecor_plugin *plugin,
+				    struct libdecor_frame *frame)
+{
+}
+
+static void
+libdecor_plugin_fallback_frame_commit(struct libdecor_plugin *plugin,
+				      struct libdecor_frame *frame,
+				      struct libdecor_state *state,
+				      struct libdecor_configuration *configuration)
+{
+}
+
+static void
+libdecor_plugin_fallback_frame_property_changed(struct libdecor_plugin *plugin,
+						struct libdecor_frame *frame)
+{
+}
+
+static void
+libdecor_plugin_fallback_frame_translate_coordinate(struct libdecor_plugin *plugin,
+						    struct libdecor_frame *frame,
+						    int content_x,
+						    int content_y,
+						    int *frame_x,
+						    int *frame_y)
+{
+	*frame_x = content_x;
+	*frame_y = content_y;
+}
+
+static void
+libdecor_plugin_fallback_frame_popup_grab(struct libdecor_plugin *plugin,
+					  struct libdecor_frame *frame,
+					  const char *seat_name)
+{
+}
+
+static void
+libdecor_plugin_fallback_frame_popup_ungrab(struct libdecor_plugin *plugin,
+					    struct libdecor_frame *frame,
+					    const char *seat_name)
+{
+}
+
+static bool
+libdecor_plugin_fallback_configuration_get_content_size(struct libdecor_plugin *plugin,
+							struct libdecor_configuration *configuration,
+							struct libdecor_frame *frame,
+							int *content_width,
+							int *content_height)
+{
+	return libdecor_configuration_get_window_size(configuration,
+						      content_width,
+						      content_height);
+}
+
+static bool
+libdecor_plugin_fallback_frame_get_window_size_for(
+		struct libdecor_plugin *plugin,
+		struct libdecor_frame *frame,
+		struct libdecor_state *state,
+		int *window_width,
+		int *window_height)
+{
+	*window_width = libdecor_state_get_content_width (state);
+	*window_height = libdecor_state_get_content_height (state);
+	return true;
+}
+
+static struct libdecor_plugin_interface fallback_plugin_iface = {
+	.destroy = libdecor_plugin_fallback_destroy,
+	.get_fd = libdecor_plugin_fallback_get_fd,
+	.dispatch = libdecor_plugin_fallback_dispatch,
+	.frame_new = libdecor_plugin_fallback_frame_new,
+	.frame_free = libdecor_plugin_fallback_frame_free,
+	.frame_commit = libdecor_plugin_fallback_frame_commit,
+	.frame_property_changed = libdecor_plugin_fallback_frame_property_changed,
+	.frame_translate_coordinate =
+		libdecor_plugin_fallback_frame_translate_coordinate,
+	.frame_popup_grab = libdecor_plugin_fallback_frame_popup_grab,
+	.frame_popup_ungrab = libdecor_plugin_fallback_frame_popup_ungrab,
+	.configuration_get_content_size = libdecor_plugin_fallback_configuration_get_content_size,
+	.frame_get_window_size_for = libdecor_plugin_fallback_frame_get_window_size_for,
+};
+
+struct libdecor_plugin *
+libdecor_fallback_plugin_new(struct libdecor *context)
+{
+	struct libdecor_plugin_fallback *plugin;
+
+	plugin = zalloc(sizeof *plugin);
+	libdecor_plugin_init(&plugin->plugin, context, &fallback_plugin_iface);
+	plugin->context = context;
+
+	libdecor_notify_plugin_ready(context);
+
+	return &plugin->plugin;
+}