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diff -up firefox-78.9.0/widget/gtk/nsWindow.cpp.D110204-fscreen firefox-78.9.0/widget/gtk/nsWindow.cpp
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--- firefox-78.9.0/widget/gtk/nsWindow.cpp.D110204-fscreen 2021-03-30 13:28:56.212009697 +0200
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+++ firefox-78.9.0/widget/gtk/nsWindow.cpp 2021-03-30 13:37:41.925850585 +0200
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@@ -139,6 +139,7 @@ using namespace mozilla::widget;
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#include <dlfcn.h>
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#include "nsPresContext.h"
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+#include "nsIBrowserHandler.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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@@ -416,6 +417,7 @@ nsWindow::nsWindow() {
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mRetryPointerGrab = false;
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mWindowType = eWindowType_child;
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mSizeState = nsSizeMode_Normal;
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+ mPendingFullscreen = false;
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mBoundsAreValid = true;
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mAspectRatio = 0.0f;
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mAspectRatioSaved = 0.0f;
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@@ -3887,6 +3889,19 @@ void nsWindow::OnWindowStateEvent(GtkWid
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}
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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::ThemeChanged() {
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@@ -6010,6 +6025,19 @@ 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-78.9.0/widget/gtk/nsWindow.h.D110204-fscreen firefox-78.9.0/widget/gtk/nsWindow.h
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--- firefox-78.9.0/widget/gtk/nsWindow.h.D110204-fscreen 2021-03-15 16:52:42.000000000 +0100
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+++ firefox-78.9.0/widget/gtk/nsWindow.h 2021-03-30 13:28:56.237009784 +0200
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@@ -703,6 +703,7 @@ class nsWindow final : public nsBaseWidg
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nsRect mPreferredPopupRect;
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bool mPreferredPopupRectFlushed;
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bool mWaitingForMoveToRectCB;
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+ bool mPendingFullscreen;
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LayoutDeviceIntRect mPendingSizeRect;
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/**
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