Add mouse button bindings

Adds support for bindings like:

bindsym button3 floating toggle
bindsym $mod+button3 floating toggle

2 files changed, 28 insertions, 0 deletions

diff --git a/sway/commands/bind.c b/sway/commands/bind.c
index 8282277b..af5a01e5 100644
--- a/sway/commands/bind.c
+++ b/sway/commands/bind.c
@@ -1,7 +1,9 @@
 #include <xkbcommon/xkbcommon.h>
 #include <xkbcommon/xkbcommon-names.h>
+#include <strings.h>
 #include "sway/commands.h"
 #include "sway/config.h"
+#include "sway/input_state.h"
 #include "list.h"
 #include "log.h"
 #include "stringop.h"
@@ -52,6 +54,12 @@ struct cmd_results *cmd_bindsym(int argc, char **argv) {
                 // Check for xkb key
                 xkb_keysym_t sym = xkb_keysym_from_name(split->items[i],
                                 XKB_KEYSYM_CASE_INSENSITIVE);
+
+                // Check for mouse binding
+                if (strncasecmp(split->items[i], "button", strlen("button")) == 0 &&
+                                strlen(split->items[i]) == strlen("button0")) {
+                        sym = ((char *)split->items[i])[strlen("button")] - '1' + M_LEFT_CLICK;
+                }
                 if (!sym) {
                         free_sway_binding(binding);
                         free_flat_list(split);
diff --git a/sway/handlers.c b/sway/handlers.c
index da765d6d..e1b90a07 100644
--- a/sway/handlers.c
+++ b/sway/handlers.c
@@ -917,6 +917,26 @@ static bool handle_pointer_button(wlc_handle view, uint32_t time, const struct w
         // Update view pointer is on
         pointer_state.view = container_under_pointer();
 
+        struct sway_mode *mode = config->current_mode;
+        // handle bindings
+        for (int i = 0; i < mode->bindings->length; ++i) {
+                struct sway_binding *binding = mode->bindings->items[i];
+                if ((modifiers->mods ^ binding->modifiers) == 0) {
+                        switch (state) {
+                                case WLC_BUTTON_STATE_PRESSED: {
+                                        if (!binding->release && handle_bindsym(binding, button, 0)) {
+                                                return EVENT_HANDLED;
+                                        }
+                                }
+                                case WLC_BUTTON_STATE_RELEASED:
+                                        if (binding->release && handle_bindsym(binding, button, 0)) {
+                                                return EVENT_HANDLED;
+                                        }
+                                break;
+                        }
+                }
+        }
+
         // Update pointer_state
         switch (button) {
         case M_LEFT_CLICK: