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

Closes #4139.

2 files changed, 74 insertions, 0 deletions

diff --git a/sway/commands/input.c b/sway/commands/input.c
index 53db9a16..c9bb8e06 100644
--- a/sway/commands/input.c
+++ b/sway/commands/input.c
@@ -29,6 +29,7 @@ static struct cmd_handler input_handlers[] = {
         { "scroll_method", input_cmd_scroll_method },
         { "tap", input_cmd_tap },
         { "tap_button_map", input_cmd_tap_button_map },
+        { "tool_mode", input_cmd_tool_mode },
         { "xkb_file", input_cmd_xkb_file },
         { "xkb_layout", input_cmd_xkb_layout },
         { "xkb_model", input_cmd_xkb_model },
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>'");
+}