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Make QWasmScreen::allWindows return all (wasm) windows

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It seems that findChildren does not return every window if called
at an inconvenient time.

This causes not all windows to be returned, and later the
QWasmCompositor will not detect a valid window to compose,
and therefor goes to disabled.

Fixes: QTBUG-132414
Pick-to: 6.9
Change-Id: I6c872071751d5a2fbdeea36fb8f4c7e9677fd7d0
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This commit is contained in:
Even Oscar Andersen 2024-12-21 10:36:30 +01:00
parent 23c16c611c
commit 5c5844cedb
2 changed files with 18 additions and 13 deletions
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29
src/plugins/platforms/wasm/qwasmscreen.cpp
View File

@ -330,21 +330,26 @@ QWasmWindowTreeNode *QWasmScreen::parentNode()
return nullptr;
}
QList<QWasmWindow *> QWasmScreen::allWindows()
QList<QWasmWindow *> QWasmScreen::allWindows() const
{
QList<QWasmWindow *> windows;
for (auto *child : childStack()) {
const QWindowList list = child->window()->findChildren<QWindow *>(Qt::FindChildrenRecursively);
for (auto child : list) {
auto handle = child->handle();
if (handle) {
auto wnd = static_cast<QWasmWindow *>(handle);
windows.push_back(wnd);
}
QList<QWasmWindow *> currentChildren;
QList<QWasmWindow *> result;
for (auto *w : childStack())
currentChildren << w;
while (!currentChildren.empty()) {
result << currentChildren;
QList<QWasmWindow *> toIterate;
currentChildren.swap(toIterate);
for (auto child : toIterate) {
for (auto *w : child->childStack())
currentChildren << w;
}
windows.push_back(child);
}
return windows;
return result;
}
QT_END_NAMESPACE

2
src/plugins/platforms/wasm/qwasmscreen.h
View File

@ -43,7 +43,7 @@ public:
QWasmCompositor *compositor();
QWasmDeadKeySupport *deadKeySupport() { return m_deadKeySupport.get(); }
QList<QWasmWindow *> allWindows();
QList<QWasmWindow *> allWindows() const;
QRect geometry() const override;
int depth() const override;