From: Benjamin Auder <benjamin.auder@somewhere>
Date: Tue, 29 Dec 2020 16:25:37 +0000 (+0100)
Subject: Experimenting smartphone 'touch' move confirmation
X-Git-Url: https://git.auder.net/doc/html/%7B%7B?a=commitdiff_plain;h=74fcb45428637275e9ee93545a67f79b960cc6ba;p=vchess.git

Experimenting smartphone 'touch' move confirmation
---

diff --git a/client/src/components/BaseGame.vue b/client/src/components/BaseGame.vue
index 61c67dec..5f825c92 100644
--- a/client/src/components/BaseGame.vue
+++ b/client/src/components/BaseGame.vue
@@ -92,6 +92,7 @@ export default {
       moves: [],
       cursor: -1, //index of the move just played
       lastMove: null,
+      touchLastClick: "",
       firstMoveNumber: 0, //for printing
       incheck: [], //for Board
       inMultimove: false,
@@ -434,8 +435,16 @@ export default {
       // Some variants make use of a single click at specific times:
       const move_s = this.vr.doClick(square);
       if (!!move_s) {
-        if (!Array.isArray(move_s)) this.play(move_s);
-        else this.$refs["board"].choices = move_s;
+        const playMove = () => {
+          if (!Array.isArray(move_s)) this.play(move_s);
+          else this.$refs["board"].choices = move_s;
+        }
+        if ("ontouchstart" in window) {
+          // Touch screen (smartphone): require confirmation
+          if (this.touchLastClick == square) playMove();
+          this.touchLastClick = square;
+        }
+        else playMove();
       }
     },
     // "light": if gotoMove() or gotoEnd()