widget/shared/WidgetUtils.h@b8a032363ba2 (annotated)
widget/shared/WidgetUtils.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * |
| michael@0 | 3 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef __mozilla_widget_WidgetUtils_h__ |
| michael@0 | 8 | #define __mozilla_widget_WidgetUtils_h__ |
| michael@0 | 9 | |
| michael@0 | 10 | #include "nsCOMPtr.h" |
| michael@0 | 11 | #include "nsIWidget.h" |
| michael@0 | 12 | #include "nsPIDOMWindow.h" |
| michael@0 | 13 | #include "nsIDOMWindow.h" |
| michael@0 | 14 | #include "mozilla/EventForwards.h" |
| michael@0 | 15 | |
| michael@0 | 16 | namespace mozilla { |
| michael@0 | 17 | namespace widget { |
| michael@0 | 18 | |
| michael@0 | 19 | class WidgetUtils |
| michael@0 | 20 | { |
| michael@0 | 21 | public: |
| michael@0 | 22 | |
| michael@0 | 23 | /** |
| michael@0 | 24 | * Starting at the docshell item for the passed in DOM window this looks up |
| michael@0 | 25 | * the docshell tree until it finds a docshell item that has a widget. |
| michael@0 | 26 | */ |
| michael@0 | 27 | static already_AddRefed<nsIWidget> DOMWindowToWidget(nsIDOMWindow *aDOMWindow); |
| michael@0 | 28 | |
| michael@0 | 29 | /** |
| michael@0 | 30 | * Compute our keyCode value (NS_VK_*) from an ASCII character. |
| michael@0 | 31 | */ |
| michael@0 | 32 | static uint32_t ComputeKeyCodeFromChar(uint32_t aCharCode); |
| michael@0 | 33 | |
| michael@0 | 34 | /** |
| michael@0 | 35 | * Get unshifted charCode and shifted charCode for aKeyCode if the keyboad |
| michael@0 | 36 | * layout is a Latin keyboard layout. |
| michael@0 | 37 | * |
| michael@0 | 38 | * @param aKeyCode Our keyCode (NS_VK_*). |
| michael@0 | 39 | * @param aIsCapsLock TRUE if CapsLock is Locked. Otherwise, FALSE. |
| michael@0 | 40 | * This is used only when aKeyCode is NS_VK_[0-9]. |
| michael@0 | 41 | * @param aUnshiftedCharCode CharCode for aKeyCode without Shift key. |
| michael@0 | 42 | * This may be zero if aKeyCode key doesn't input |
| michael@0 | 43 | * a Latin character. |
| michael@0 | 44 | * Note that must not be nullptr. |
| michael@0 | 45 | * @param aShiftedCharCode CharCode for aKeyCOde with Shift key. |
| michael@0 | 46 | * This is always 0 when aKeyCode isn't |
| michael@0 | 47 | * NS_VK_[A-Z]. |
| michael@0 | 48 | * Note that must not be nullptr. |
| michael@0 | 49 | */ |
| michael@0 | 50 | static void GetLatinCharCodeForKeyCode(uint32_t aKeyCode, |
| michael@0 | 51 | bool aIsCapsLock, |
| michael@0 | 52 | uint32_t* aUnshiftedCharCode, |
| michael@0 | 53 | uint32_t* aShiftedCharCode); |
| michael@0 | 54 | |
| michael@0 | 55 | /** |
| michael@0 | 56 | * GetDeadKeyNameIndex() returns a key name index for dead key or |
| michael@0 | 57 | * "Unidentified". This method can return the index from non-combining |
| michael@0 | 58 | * unicode character, e.g., '`' returns KEY_NAME_INDEX_DeadGrave. |
| michael@0 | 59 | * So, you cannot use this method for checking if the char is a dead char. |
| michael@0 | 60 | */ |
| michael@0 | 61 | static KeyNameIndex GetDeadKeyNameIndex(char16_t aChar); |
| michael@0 | 62 | }; |
| michael@0 | 63 | |
| michael@0 | 64 | } // namespace widget |
| michael@0 | 65 | } // namespace mozilla |
| michael@0 | 66 | |
| michael@0 | 67 | #endif |
