3rdparty/ext_qt/0001-Disable-QAccessibility-by-not-traversing-nodes.patch

0001 From 71941e29acdf87fdfd91354b03535a536d05f934 Mon Sep 17 00:00:00 2001
0002 From: Sharaf Zaman <shzam@sdf.org>
0003 Date: Wed, 22 Dec 2021 23:12:36 +0000
0004 Subject: [PATCH] Disable QAccessibility by not traversing nodes
0005
0006 The problem is more complex than anticipated. We get to this function
0007 from the Android UI thread and we're supposed to return the node.
0008 However accessing QWidgets from non qtMainLoopThread is dangerous.
0009
0010 A solution that comes to mind is to invokeMethod while blocking, but
0011 that results in deadlocks (because qtMainLoopThread also has to wait for
0012 Android Ui thread).
0013
0014 NOTE: Async solution has its own complications:
0015 1. We'd have to manage lifetime of jobject local refs
0016 2. The node behind the scene may be long gone.
0017 ---
0018  src/plugins/platforms/android/androidjniaccessibility.cpp | 3 +++
0019  1 file changed, 3 insertions(+)
0020
0021 diff --git a/src/plugins/platforms/android/androidjniaccessibility.cpp b/src/plugins/platforms/android/androidjniaccessibility.cpp
0022 index 6f1178e041..0a6eabd138 100644
0023 --- a/src/plugins/platforms/android/androidjniaccessibility.cpp
0024 +++ b/src/plugins/platforms/android/androidjniaccessibility.cpp
0025 @@ -243,6 +243,8 @@ if (!clazz) { \
0026
0027      static bool populateNode(JNIEnv *env, jobject /*thiz*/, jint objectId, jobject node)
0028      {
0029 +        return false;
0030 +#if 0
0031          QAccessibleInterface *iface = interfaceFromId(objectId);
0032          if (!iface || !iface->isValid()) {
0033              __android_log_print(ANDROID_LOG_WARN, m_qtTag, "Accessibility: populateNode for Invalid ID");
0034 @@ -293,6 +295,7 @@ if (!clazz) { \
0035          env->CallVoidMethod(node, m_setContentDescriptionMethodID, jdesc);
0036
0037          return true;
0038 +#endif
0039      }
0040
0041      static JNINativeMethod methods[] = {
0042 --
0043 2.34.1
0044