From 1c861e5d692b2cdd5cd2c1b3b2d5930f2cc6f394 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Thu, 11 Jul 2019 09:17:13 +0200
Subject: [PATCH] selection: only left button can be used for selection

---
 input.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/input.c b/input.c
index 5032c748..a6369a51 100644
--- a/input.c
+++ b/input.c
@@ -312,7 +312,7 @@ wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
     term->mouse.col = col;
     term->mouse.row = row;
 
-    if (term->mouse.button != 0) {
+    if (term->mouse.button == BTN_LEFT) {
         /* Update selection */
         term->selection.end = (struct coord){col, term->grid->view + row};
         term_damage_view(term);
@@ -335,10 +335,18 @@ wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
 
     switch (state) {
     case WL_POINTER_BUTTON_STATE_PRESSED:
-        /* Start selection */
-        term->selection.start = (struct coord){
-            term->mouse.col, term->grid->view + term->mouse.row};
-        term->selection.end = (struct coord){-1, -1};
+        if (button == BTN_LEFT) {
+            /* Start selection */
+            term->selection.start = (struct coord){
+                term->mouse.col, term->grid->view + term->mouse.row};
+            term->selection.end = (struct coord){-1, -1};
+        } else {
+            term->selection.start = (struct coord){-1, -1};
+            term->selection.end = (struct coord){-1, -1};
+            term_damage_view(term);
+            if (term->frame_callback == NULL)
+                grid_render(term);
+        }
 
         term->mouse.button = button; /* For motion events */
         term_mouse_down(term, button, term->mouse.row, term->mouse.col,
@@ -346,7 +354,7 @@ wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
         break;
 
     case WL_POINTER_BUTTON_STATE_RELEASED:
-        if (term->selection.end.col == -1) {
+        if (button == BTN_LEFT && term->selection.end.col == -1) {
             /* No selection made - cancel  */
             term->selection.start = (struct coord){-1, -1};
             term_damage_view(term);