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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_WidgetUtils_h
+#define mozilla_WidgetUtils_h
+
+#include "mozilla/EventForwards.h"
+#include "mozilla/gfx/Matrix.h"
+#include "nsCOMPtr.h"
+#include "nsIWidget.h"
+#include "nsRect.h"
+
+class nsPIDOMWindowOuter;
+
+namespace mozilla {
+
+// NB: these must match up with pseudo-enum in nsIScreen.idl.
+enum ScreenRotation {
+ ROTATION_0 = 0,
+ ROTATION_90,
+ ROTATION_180,
+ ROTATION_270,
+
+ ROTATION_COUNT
+};
+
+gfx::Matrix ComputeTransformForRotation(const nsIntRect& aBounds,
+ ScreenRotation aRotation);
+
+gfx::Matrix ComputeTransformForUnRotation(const nsIntRect& aBounds,
+ ScreenRotation aRotation);
+
+nsIntRect RotateRect(nsIntRect aRect,
+ const nsIntRect& aBounds,
+ ScreenRotation aRotation);
+
+namespace widget {
+
+class WidgetUtils
+{
+public:
+ /**
+ * Shutdown() is called when "xpcom-will-shutdown" is notified. This is
+ * useful when you need to observe the notification in XP level code under
+ * widget.
+ */
+ static void Shutdown();
+
+ /**
+ * Starting at the docshell item for the passed in DOM window this looks up
+ * the docshell tree until it finds a docshell item that has a widget.
+ */
+ static already_AddRefed<nsIWidget> DOMWindowToWidget(nsPIDOMWindowOuter* aDOMWindow);
+
+ /**
+ * Compute our keyCode value (NS_VK_*) from an ASCII character.
+ */
+ static uint32_t ComputeKeyCodeFromChar(uint32_t aCharCode);
+
+ /**
+ * Get unshifted charCode and shifted charCode for aKeyCode if the keyboad
+ * layout is a Latin keyboard layout.
+ *
+ * @param aKeyCode Our keyCode (NS_VK_*).
+ * @param aIsCapsLock TRUE if CapsLock is Locked. Otherwise, FALSE.
+ * This is used only when aKeyCode is NS_VK_[0-9].
+ * @param aUnshiftedCharCode CharCode for aKeyCode without Shift key.
+ * This may be zero if aKeyCode key doesn't input
+ * a Latin character.
+ * Note that must not be nullptr.
+ * @param aShiftedCharCode CharCode for aKeyCOde with Shift key.
+ * This is always 0 when aKeyCode isn't
+ * NS_VK_[A-Z].
+ * Note that must not be nullptr.
+ */
+ static void GetLatinCharCodeForKeyCode(uint32_t aKeyCode,
+ bool aIsCapsLock,
+ uint32_t* aUnshiftedCharCode,
+ uint32_t* aShiftedCharCode);
+
+ /**
+ * Does device have touch support
+ */
+ static uint32_t IsTouchDeviceSupportPresent();
+
+ /**
+ * Send bidi keyboard information to content process
+ */
+ static void SendBidiKeyboardInfoToContent();
+};
+
+} // namespace widget
+} // namespace mozilla
+
+#endif // mozilla_WidgetUtils_h