Add scroll factor config option.

2 files changed, 39 insertions, 2 deletions

diff --git a/sway/commands/input/pointer_accel.c b/sway/commands/input/pointer_accel.c
index df487b1c..efd81ee6 100644
--- a/sway/commands/input/pointer_accel.c
+++ b/sway/commands/input/pointer_accel.c
@@ -1,8 +1,10 @@
+#include <math.h>
 #include <stdlib.h>
 #include <string.h>
 #include "sway/config.h"
 #include "sway/commands.h"
 #include "sway/input/input-manager.h"
+#include "util.h"
 
 struct cmd_results *input_cmd_pointer_accel(int argc, char **argv) {
         struct cmd_results *error = NULL;
@@ -15,8 +17,11 @@ struct cmd_results *input_cmd_pointer_accel(int argc, char **argv) {
                         "pointer_accel", "No input device defined.");
         }
 
-        float pointer_accel = atof(argv[0]);
-        if (pointer_accel < -1 || pointer_accel > 1) {
+        float pointer_accel = parse_float(argv[0]);
+        if (isnan(pointer_accel)) {
+                return cmd_results_new(CMD_INVALID, "pointer_accel",
+                        "Invalid pointer accel; expected float.");
+        } if (pointer_accel < -1 || pointer_accel > 1) {
                 return cmd_results_new(CMD_INVALID, "pointer_accel",
                         "Input out of range [-1, 1]");
         }
diff --git a/sway/commands/input/scroll_factor.c b/sway/commands/input/scroll_factor.c
new file mode 100644
index 00000000..52d943b0
--- /dev/null
+++ b/sway/commands/input/scroll_factor.c
@@ -0,0 +1,32 @@
+#include <errno.h>
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include "sway/config.h"
+#include "sway/commands.h"
+#include "sway/input/input-manager.h"
+#include "util.h"
+
+struct cmd_results *input_cmd_scroll_factor(int argc, char **argv) {
+        struct cmd_results *error = NULL;
+        if ((error = checkarg(argc, "scroll_factor", EXPECTED_AT_LEAST, 1))) {
+                return error;
+        }
+        struct input_config *ic = config->handler_context.input_config;
+        if (!ic) {
+                return cmd_results_new(CMD_FAILURE,
+                        "scroll_factor", "No input device defined.");
+        }
+
+        float scroll_factor = parse_float(argv[0]);
+        if (isnan(scroll_factor)) {
+                return cmd_results_new(CMD_INVALID, "scroll_factor",
+                        "Invalid scroll factor; expected float.");
+        } else if (scroll_factor < 0) {
+                return cmd_results_new(CMD_INVALID, "scroll_factor",
+                        "Scroll factor cannot be negative.");
+        }
+        ic->scroll_factor = scroll_factor;
+
+        return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}