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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
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