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-rw-r--r--dev-qt/qtdeclarative/files/qtdeclarative-5.14.2-QQuickMouseArea-stuck-in-pressed-state.patch55
1 files changed, 55 insertions, 0 deletions
diff --git a/dev-qt/qtdeclarative/files/qtdeclarative-5.14.2-QQuickMouseArea-stuck-in-pressed-state.patch b/dev-qt/qtdeclarative/files/qtdeclarative-5.14.2-QQuickMouseArea-stuck-in-pressed-state.patch
new file mode 100644
index 00000000000..1dd0ff1155d
--- /dev/null
+++ b/dev-qt/qtdeclarative/files/qtdeclarative-5.14.2-QQuickMouseArea-stuck-in-pressed-state.patch
@@ -0,0 +1,55 @@
+From 8ace780b5aa298e3c01903bfd57f766a42209191 Mon Sep 17 00:00:00 2001
+From: Frederik Gladhorn <frederik.gladhorn@remarkable.com>
+Date: Sat, 28 Mar 2020 15:14:41 +0100
+Subject: [PATCH] Fix QQuickMouseArea getting stuck in pressed state when
+ hiding in press
+MIME-Version: 1.0
+Content-Type: text/plain; charset=utf8
+Content-Transfer-Encoding: 8bit
+
+In 78c1fcbc49f56463064eef738a475d9018357b24 we stopped giving the
+exclusive grab to hidden or disabled items with is good. But the change
+did not take into consideration how mouse area handles its internal
+state.
+
+As a simple example: A mouse area that would set itself hiddin in the
+press handler, would continue to have d->pressed == true, which means it
+would not react to any future press events.
+
+The fix is to let mouse area check in its change handler whether it has
+become invisible.
+The test also checks that enabled behaves the same way. There is no
+action needed, since mouse area does completely custom handling of
+enabled (maybe something to fix in Qt 6), disabling a mouse area doesn't
+disable its children for example, it doesn't invoke
+QQuickItem::setEnabled at all. Due to this circumventing the common
+behavior, by chance disabling a mouse area in the on pressed handler
+works.
+
+Fixes: QTBUG-74987
+Change-Id: Idb8499b3e5bcb744fbba203fdea5c46695bd5077
+Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
+---
+ src/quick/items/qquickmousearea.cpp | 6 ++++
+ 3 files changed, 80 insertions(+)
+ create mode 100644 tests/auto/quick/qquickmousearea/data/settingHiddenInPressUngrabs.qml
+
+diff --git a/src/quick/items/qquickmousearea.cpp b/src/quick/items/qquickmousearea.cpp
+index 368379f5c40..dc60712a9cd 100644
+--- a/src/quick/items/qquickmousearea.cpp
++++ b/src/quick/items/qquickmousearea.cpp
+@@ -1083,6 +1083,12 @@ void QQuickMouseArea::itemChange(ItemChange change, const ItemChangeData &value)
+ }
+ setHovered(!d->hovered);
+ }
++ if (d->pressed && (!isVisible())) {
++ // This happens when the mouse area sets itself disabled or hidden
++ // inside the press handler. In that case we should not keep the internal
++ // state as pressed, since we never became the mouse grabber.
++ ungrabMouse();
++ }
+ break;
+ default:
+ break;
+--
+2.16.3