input/tablet: add tool_mode option to set tablet tools as relative input

Closes #4139.

1 files changed, 73 insertions, 0 deletions

diff --git a/sway/commands/input/tool_mode.c b/sway/commands/input/tool_mode.c
new file mode 100644
index 00000000..04316857
--- /dev/null
+++ b/sway/commands/input/tool_mode.c
@@ -0,0 +1,73 @@
+#include <strings.h>
+#include "sway/commands.h"
+#include "sway/config.h"
+
+static void set_tool_mode(struct input_config *ic,
+		enum wlr_tablet_tool_type type, enum sway_tablet_tool_mode mode) {
+	for (int i = 0; i < ic->tools->length; i++) {
+		struct input_config_tool *tool = ic->tools->items[i];
+		if (tool->type == type) {
+			tool->mode = mode;
+			return;
+		}
+	}
+
+	struct input_config_tool *tool = calloc(1, sizeof(*tool));
+	if (tool) {
+		tool->type = type;
+		tool->mode = mode;
+		list_add(ic->tools, tool);
+	}
+}
+
+struct cmd_results *input_cmd_tool_mode(int argc, char **argv) {
+	struct cmd_results *error;
+	if ((error = checkarg(argc, "tool_mode", EXPECTED_AT_LEAST, 2))) {
+		return error;
+	}
+
+	struct input_config *ic = config->handler_context.input_config;
+	if (!ic) {
+		return cmd_results_new(CMD_FAILURE, "No input device defined.");
+	}
+
+	enum sway_tablet_tool_mode tool_mode;
+	if (!strcasecmp(argv[1], "absolute")) {
+		tool_mode = SWAY_TABLET_TOOL_MODE_ABSOLUTE;
+	} else if (!strcasecmp(argv[1], "relative")) {
+		tool_mode = SWAY_TABLET_TOOL_MODE_RELATIVE;
+	} else {
+		goto invalid_command;
+	}
+
+	if (!strcasecmp(argv[0], "*")) {
+		set_tool_mode(ic, WLR_TABLET_TOOL_TYPE_PEN, tool_mode);
+		set_tool_mode(ic, WLR_TABLET_TOOL_TYPE_ERASER, tool_mode);
+		set_tool_mode(ic, WLR_TABLET_TOOL_TYPE_BRUSH, tool_mode);
+		set_tool_mode(ic, WLR_TABLET_TOOL_TYPE_PENCIL, tool_mode);
+		set_tool_mode(ic, WLR_TABLET_TOOL_TYPE_AIRBRUSH, tool_mode);
+	} else {
+		enum wlr_tablet_tool_type tool_type;
+		if (!strcasecmp(argv[0], "pen")) {
+			tool_type = WLR_TABLET_TOOL_TYPE_PEN;
+		} else if (!strcasecmp(argv[0], "eraser")) {
+			tool_type = WLR_TABLET_TOOL_TYPE_ERASER;
+		} else if (!strcasecmp(argv[0], "brush")) {
+			tool_type = WLR_TABLET_TOOL_TYPE_BRUSH;
+		} else if (!strcasecmp(argv[0], "pencil")) {
+			tool_type = WLR_TABLET_TOOL_TYPE_PENCIL;
+		} else if (!strcasecmp(argv[0], "airbrush")) {
+			tool_type = WLR_TABLET_TOOL_TYPE_AIRBRUSH;
+		} else {
+			goto invalid_command;
+		}
+
+		set_tool_mode(ic, tool_type, tool_mode);
+	}
+
+	return cmd_results_new(CMD_SUCCESS, NULL);
+
+invalid_command:
+	return cmd_results_new(CMD_INVALID,
+		"Expected 'tool_mode <tool> <absolute|relative>'");
+}