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-rw-r--r--src/imports/controls/imagine/qquickninepatchimage.cpp19
-rw-r--r--tests/auto/qquickimaginestyle/data/tst_imagine.qml48
-rw-r--r--tests/auto/qquickimaginestyle/qquickimaginestyle.pro4
-rw-r--r--tests/auto/qquickimaginestyle/test-assets/button-background-1.pngbin0 -> 211 bytes
-rw-r--r--tests/auto/qquickimaginestyle/test-assets/button-background-2.pngbin0 -> 211 bytes
5 files changed, 69 insertions, 2 deletions
diff --git a/src/imports/controls/imagine/qquickninepatchimage.cpp b/src/imports/controls/imagine/qquickninepatchimage.cpp
index c840c6f8..7d5e4f71 100644
--- a/src/imports/controls/imagine/qquickninepatchimage.cpp
+++ b/src/imports/controls/imagine/qquickninepatchimage.cpp
@@ -397,7 +397,24 @@ void QQuickNinePatchImage::pixmapChange()
d->updatePatches();
} else {
- d->resetNode = !d->ninePatch.isNull();
+ /*
+ Only change resetNode when it's false; i.e. when no reset is pending.
+ updatePaintNode() will take care of setting it to false if it's true.
+
+ Consider the following changes in source:
+
+ normal.png => press.9.png => normal.png => focus.png
+
+ If the last two events happen quickly, pixmapChange() can be called
+ twice with no call to updatePaintNode() inbetween. On the first call,
+ resetNode will be true (because ninePatch is not null since it is still
+ in the process of going from a 9-patch image to a regular image),
+ and on the second call, resetNode would be false if we didn't have this check.
+ This results in the oldNode never being deleted, and QQuickImage
+ tries to static_cast a QQuickNinePatchImage to a QSGInternalImageNode.
+ */
+ if (!d->resetNode)
+ d->resetNode = !d->ninePatch.isNull();
d->ninePatch = QImage();
}
QQuickImage::pixmapChange();
diff --git a/tests/auto/qquickimaginestyle/data/tst_imagine.qml b/tests/auto/qquickimaginestyle/data/tst_imagine.qml
index 03bb9602..b9078d78 100644
--- a/tests/auto/qquickimaginestyle/data/tst_imagine.qml
+++ b/tests/auto/qquickimaginestyle/data/tst_imagine.qml
@@ -54,6 +54,7 @@ import QtTest 1.1
import QtQuick.Templates 2.12 as T
import QtQuick.Controls 2.12
import QtQuick.Controls.Imagine 2.12
+import QtQuick.Controls.Imagine.impl 2.12
TestCase {
id: testCase
@@ -105,4 +106,51 @@ TestCase {
verify(control)
compare(control.font.pixelSize, 80)
}
+
+ Component {
+ id: ninePatchImageComponent
+
+ NinePatchImage {
+ property alias mouseArea: mouseArea
+
+ MouseArea {
+ id: mouseArea
+ anchors.fill: parent
+ // The name of the images isn't important; we just want to check that
+ // going from regular to 9-patch to regular to regular works without crashing.
+ onPressed: parent.source = "qrc:/control-assets/button-background.9.png"
+ onReleased: parent.source = "qrc:/test-assets/button-background-1.png"
+ onClicked: parent.source = "qrc:/test-assets/button-background-2.png"
+ }
+ }
+ }
+
+ Component {
+ id: signalSpyComponent
+
+ SignalSpy {}
+ }
+
+ // QTBUG-78790
+ function test_switchBetween9PatchAndRegular() {
+ var ninePatchImage = createTemporaryObject(ninePatchImageComponent, testCase,
+ { source: "qrc:/test-assets/button-background-1.png" })
+ verify(ninePatchImage)
+
+ var clickSpy = signalSpyComponent.createObject(ninePatchImage,
+ { target: ninePatchImage.mouseArea, signalName: "clicked" })
+ verify(clickSpy.valid)
+
+ var afterRenderingSpy = signalSpyComponent.createObject(ninePatchImage,
+ { target: testCase.Window.window, signalName: "afterRendering" })
+ verify(afterRenderingSpy.valid)
+
+ mousePress(ninePatchImage)
+ // Wait max 1 second - in reality it should take a handful of milliseconds.
+ afterRenderingSpy.wait(1000)
+ mouseRelease(ninePatchImage)
+ compare(clickSpy.count, 1)
+ // Shouldn't result in a crash.
+ afterRenderingSpy.wait(1000)
+ }
}
diff --git a/tests/auto/qquickimaginestyle/qquickimaginestyle.pro b/tests/auto/qquickimaginestyle/qquickimaginestyle.pro
index c421f2dc..4b1a309a 100644
--- a/tests/auto/qquickimaginestyle/qquickimaginestyle.pro
+++ b/tests/auto/qquickimaginestyle/qquickimaginestyle.pro
@@ -7,7 +7,9 @@ SOURCES += \
RESOURCES += \
$$PWD/qtquickcontrols2.conf \
- $$PWD/control-assets/button-background.9.png
+ $$PWD/control-assets/button-background.9.png \
+ $$PWD/test-assets/button-background-1.png \
+ $$PWD/test-assets/button-background-2.png
OTHER_FILES += \
$$PWD/data/*.qml
diff --git a/tests/auto/qquickimaginestyle/test-assets/button-background-1.png b/tests/auto/qquickimaginestyle/test-assets/button-background-1.png
new file mode 100644
index 00000000..244b707b
--- /dev/null
+++ b/tests/auto/qquickimaginestyle/test-assets/button-background-1.png
Binary files differ
diff --git a/tests/auto/qquickimaginestyle/test-assets/button-background-2.png b/tests/auto/qquickimaginestyle/test-assets/button-background-2.png
new file mode 100644
index 00000000..54f5ecd8
--- /dev/null
+++ b/tests/auto/qquickimaginestyle/test-assets/button-background-2.png
Binary files differ