From 1e0519c6465335dd380ad8d8209969c71eb78d48 Mon Sep 17 00:00:00 2001
From: Rodney Dawes <dobey.pwns@gmail.com>
Date: Fri, 15 Oct 2021 12:55:33 -0400
Subject: [PATCH 21/40] Fix the logic for decoding modifiers map in Wayland
 text input protocol

Correctly check for the flags in the modifiers map when we get it from
the compositor, instead of modifying the map in the for loop conditional.

[ChangeLog][QWaylandInputContext] Fix modifiers map decoding
logic when receiving the map from the compositor.

Fixes: QTBUG-97094
Pick-to: 6.2 5.15 5.12
Change-Id: Idad19f7b1f4560d40abbb5b31032360cfe915261
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
---
 src/client/qwaylandinputcontext.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/client/qwaylandinputcontext.cpp b/src/client/qwaylandinputcontext.cpp
index 503fd735..e290baa2 100644
--- a/src/client/qwaylandinputcontext.cpp
+++ b/src/client/qwaylandinputcontext.cpp
@@ -387,8 +387,10 @@ void QWaylandTextInput::zwp_text_input_v2_input_method_changed(uint32_t serial,
 Qt::KeyboardModifiers QWaylandTextInput::modifiersToQtModifiers(uint32_t modifiers)
 {
     Qt::KeyboardModifiers ret = Qt::NoModifier;
-    for (int i = 0; modifiers >>= 1; ++i) {
-        ret |= m_modifiersMap[i];
+    for (int i = 0; i < m_modifiersMap.size(); ++i) {
+        if (modifiers & (1 << i)) {
+            ret |= m_modifiersMap[i];
+        }
     }
     return ret;
 }
-- 
2.35.1