/* -*- 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