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diff -up firefox-91.0/widget/gtk/nsWindow.cpp.D110204-fscreen.diff firefox-91.0/widget/gtk/nsWindow.cpp
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--- firefox-91.0/widget/gtk/nsWindow.cpp.D110204-fscreen.diff 2021-07-27 23:31:38.000000000 +0200
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+++ firefox-91.0/widget/gtk/nsWindow.cpp 2021-07-30 15:47:22.031795569 +0200
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@@ -91,6 +91,7 @@
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#include "SystemTimeConverter.h"
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#include "WidgetUtilsGtk.h"
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#include "mozilla/X11Util.h"
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+#include "nsIBrowserHandler.h"
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#ifdef ACCESSIBILITY
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# include "mozilla/a11y/LocalAccessible.h"
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@@ -441,6 +442,7 @@ nsWindow::nsWindow()
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mHasMappedToplevel(false),
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mRetryPointerGrab(false),
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mSizeState(nsSizeMode_Normal),
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+ mPendingFullscreen(false),
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mAspectRatio(0.0f),
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mAspectRatioSaved(0.0f),
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mLastScrollEventTime(GDK_CURRENT_TIME),
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@@ -4626,6 +4628,19 @@ void nsWindow::OnWindowStateEvent(GtkWid
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ClearTransparencyBitmap();
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}
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}
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+
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+ // Hack to ensure window switched to fullscreen - avoid to fail when starting
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+ // in kiosk mode
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+ if (mPendingFullscreen &&
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+ !(aEvent->new_window_state & GDK_WINDOW_STATE_FULLSCREEN)) {
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+ LOG(
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+ (" Window should be fullscreen, but it's not, retrying set to "
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+ "fullscreen.\n"));
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+ MakeFullScreen(true);
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+ } else {
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+ LOG((" Window successfully switched to fullscreen, happy now\n"));
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+ mPendingFullscreen = false;
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+ }
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}
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void nsWindow::OnDPIChanged() {
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@@ -6880,6 +6895,19 @@ nsresult nsWindow::MakeFullScreen(bool a
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}
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}
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+ // if in kiosk, ensure the fullscreen is called
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+ nsCOMPtr<nsIBrowserHandler> browserHandler =
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+ do_GetService("@mozilla.org/browser/clh;1");
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+ if (browserHandler) {
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+ bool isKiosk;
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+ browserHandler->GetKiosk(&isKiosk);
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+ if (isKiosk) {
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+ LOG((" is kiosk, ensure the window switch to fullscreen\n"));
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+ mPendingFullscreen = true;
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+ }
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+ } else {
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+ LOG((" Cannot find the browserHandler service.\n"));
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+ }
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gtk_window_fullscreen(GTK_WINDOW(mShell));
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} else {
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mSizeMode = mLastSizeMode;
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diff -up firefox-91.0/widget/gtk/nsWindow.h.D110204-fscreen.diff firefox-91.0/widget/gtk/nsWindow.h
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--- firefox-91.0/widget/gtk/nsWindow.h.D110204-fscreen.diff 2021-07-27 23:31:38.000000000 +0200
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+++ firefox-91.0/widget/gtk/nsWindow.h 2021-07-29 18:35:41.000639386 +0200
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@@ -763,6 +763,7 @@ class nsWindow final : public nsBaseWidg
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* move-to-rect callback we store it to mNewSizeAfterMoveToRect.
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*/
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bool mWaitingForMoveToRectCallback;
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+ bool mPendingFullscreen;
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LayoutDeviceIntRect mNewSizeAfterMoveToRect;
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/**
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