mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
1992 lines
65 KiB
C++
1992 lines
65 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Util.h"
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#include "KeyboardLayout.h"
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#include "nsIMM32Handler.h"
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#include "nsMemory.h"
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#include "nsToolkit.h"
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#include "nsQuickSort.h"
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#include "nsAlgorithm.h"
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#include "nsGUIEvent.h"
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#include "nsUnicharUtils.h"
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#include "WidgetUtils.h"
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#include "WinUtils.h"
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#include "nsWindowDbg.h"
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#include "nsServiceManagerUtils.h"
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#include "nsPrintfCString.h"
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#include "nsIDOMKeyEvent.h"
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#include "nsIIdleServiceInternal.h"
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#include "npapi.h"
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#include <windows.h>
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#include <winuser.h>
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#include <algorithm>
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#ifndef WINABLEAPI
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#include <winable.h>
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#endif
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namespace mozilla {
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namespace widget {
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struct DeadKeyEntry
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{
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PRUnichar BaseChar;
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PRUnichar CompositeChar;
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};
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class DeadKeyTable
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{
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friend class KeyboardLayout;
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uint16_t mEntries;
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// KeyboardLayout::AddDeadKeyTable() will allocate as many entries as
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// required. It is the only way to create new DeadKeyTable instances.
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DeadKeyEntry mTable[1];
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void Init(const DeadKeyEntry* aDeadKeyArray, uint32_t aEntries)
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{
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mEntries = aEntries;
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memcpy(mTable, aDeadKeyArray, aEntries * sizeof(DeadKeyEntry));
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}
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static uint32_t SizeInBytes(uint32_t aEntries)
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{
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return offsetof(DeadKeyTable, mTable) + aEntries * sizeof(DeadKeyEntry);
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}
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public:
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uint32_t Entries() const
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{
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return mEntries;
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}
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bool IsEqual(const DeadKeyEntry* aDeadKeyArray, uint32_t aEntries) const
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{
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return (mEntries == aEntries &&
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!memcmp(mTable, aDeadKeyArray,
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aEntries * sizeof(DeadKeyEntry)));
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}
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PRUnichar GetCompositeChar(PRUnichar aBaseChar) const;
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};
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/*****************************************************************************
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* mozilla::widget::ModifierKeyState
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*****************************************************************************/
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void
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ModifierKeyState::Update()
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{
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mModifiers = 0;
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if (IS_VK_DOWN(VK_SHIFT)) {
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mModifiers |= MODIFIER_SHIFT;
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}
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if (IS_VK_DOWN(VK_CONTROL)) {
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mModifiers |= MODIFIER_CONTROL;
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}
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if (IS_VK_DOWN(VK_MENU)) {
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mModifiers |= MODIFIER_ALT;
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}
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if (IS_VK_DOWN(VK_LWIN) || IS_VK_DOWN(VK_RWIN)) {
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mModifiers |= MODIFIER_OS;
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}
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if (::GetKeyState(VK_CAPITAL) & 1) {
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mModifiers |= MODIFIER_CAPSLOCK;
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}
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if (::GetKeyState(VK_NUMLOCK) & 1) {
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mModifiers |= MODIFIER_NUMLOCK;
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}
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if (::GetKeyState(VK_SCROLL) & 1) {
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mModifiers |= MODIFIER_SCROLLLOCK;
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}
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EnsureAltGr();
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}
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void
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ModifierKeyState::InitInputEvent(nsInputEvent& aInputEvent) const
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{
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aInputEvent.modifiers = mModifiers;
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switch(aInputEvent.eventStructType) {
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case NS_MOUSE_EVENT:
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case NS_MOUSE_SCROLL_EVENT:
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case NS_WHEEL_EVENT:
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case NS_DRAG_EVENT:
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case NS_SIMPLE_GESTURE_EVENT:
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InitMouseEvent(aInputEvent);
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break;
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default:
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break;
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}
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}
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void
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ModifierKeyState::InitMouseEvent(nsInputEvent& aMouseEvent) const
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{
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NS_ASSERTION(aMouseEvent.eventStructType == NS_MOUSE_EVENT ||
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aMouseEvent.eventStructType == NS_WHEEL_EVENT ||
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aMouseEvent.eventStructType == NS_DRAG_EVENT ||
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aMouseEvent.eventStructType == NS_SIMPLE_GESTURE_EVENT,
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"called with non-mouse event");
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nsMouseEvent_base& mouseEvent = static_cast<nsMouseEvent_base&>(aMouseEvent);
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mouseEvent.buttons = 0;
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if (::GetKeyState(VK_LBUTTON) < 0) {
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mouseEvent.buttons |= nsMouseEvent::eLeftButtonFlag;
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}
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if (::GetKeyState(VK_RBUTTON) < 0) {
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mouseEvent.buttons |= nsMouseEvent::eRightButtonFlag;
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}
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if (::GetKeyState(VK_MBUTTON) < 0) {
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mouseEvent.buttons |= nsMouseEvent::eMiddleButtonFlag;
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}
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if (::GetKeyState(VK_XBUTTON1) < 0) {
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mouseEvent.buttons |= nsMouseEvent::e4thButtonFlag;
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}
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if (::GetKeyState(VK_XBUTTON2) < 0) {
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mouseEvent.buttons |= nsMouseEvent::e5thButtonFlag;
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}
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}
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/*****************************************************************************
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* mozilla::widget::UniCharsAndModifiers
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*****************************************************************************/
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void
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UniCharsAndModifiers::Append(PRUnichar aUniChar, Modifiers aModifiers)
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{
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MOZ_ASSERT(mLength < 5);
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mChars[mLength] = aUniChar;
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mModifiers[mLength] = aModifiers;
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mLength++;
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}
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void
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UniCharsAndModifiers::FillModifiers(Modifiers aModifiers)
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{
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for (uint32_t i = 0; i < mLength; i++) {
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mModifiers[i] = aModifiers;
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}
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}
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bool
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UniCharsAndModifiers::UniCharsEqual(const UniCharsAndModifiers& aOther) const
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{
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if (mLength != aOther.mLength) {
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return false;
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}
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return !memcmp(mChars, aOther.mChars, mLength * sizeof(PRUnichar));
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}
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bool
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UniCharsAndModifiers::UniCharsCaseInsensitiveEqual(
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const UniCharsAndModifiers& aOther) const
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{
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if (mLength != aOther.mLength) {
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return false;
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}
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nsCaseInsensitiveStringComparator comp;
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return !comp(mChars, aOther.mChars, mLength, aOther.mLength);
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}
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UniCharsAndModifiers&
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UniCharsAndModifiers::operator+=(const UniCharsAndModifiers& aOther)
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{
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uint32_t copyCount = std::min(aOther.mLength, 5 - mLength);
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NS_ENSURE_TRUE(copyCount > 0, *this);
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memcpy(&mChars[mLength], aOther.mChars, copyCount * sizeof(PRUnichar));
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memcpy(&mModifiers[mLength], aOther.mModifiers,
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copyCount * sizeof(Modifiers));
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mLength += copyCount;
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return *this;
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}
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UniCharsAndModifiers
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UniCharsAndModifiers::operator+(const UniCharsAndModifiers& aOther) const
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{
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UniCharsAndModifiers result(*this);
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result += aOther;
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return result;
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}
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/*****************************************************************************
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* mozilla::widget::VirtualKey
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*****************************************************************************/
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inline PRUnichar
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VirtualKey::GetCompositeChar(ShiftState aShiftState, PRUnichar aBaseChar) const
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{
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return mShiftStates[aShiftState].DeadKey.Table->GetCompositeChar(aBaseChar);
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}
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const DeadKeyTable*
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VirtualKey::MatchingDeadKeyTable(const DeadKeyEntry* aDeadKeyArray,
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uint32_t aEntries) const
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{
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if (!mIsDeadKey) {
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return nullptr;
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}
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for (ShiftState shiftState = 0; shiftState < 16; shiftState++) {
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if (!IsDeadKey(shiftState)) {
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continue;
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}
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const DeadKeyTable* dkt = mShiftStates[shiftState].DeadKey.Table;
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if (dkt && dkt->IsEqual(aDeadKeyArray, aEntries)) {
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return dkt;
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}
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}
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return nullptr;
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}
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void
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VirtualKey::SetNormalChars(ShiftState aShiftState,
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const PRUnichar* aChars,
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uint32_t aNumOfChars)
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{
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NS_ASSERTION(aShiftState < ArrayLength(mShiftStates), "invalid index");
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SetDeadKey(aShiftState, false);
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for (uint32_t index = 0; index < aNumOfChars; index++) {
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// Ignore legacy non-printable control characters
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mShiftStates[aShiftState].Normal.Chars[index] =
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(aChars[index] >= 0x20) ? aChars[index] : 0;
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}
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uint32_t len = ArrayLength(mShiftStates[aShiftState].Normal.Chars);
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for (uint32_t index = aNumOfChars; index < len; index++) {
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mShiftStates[aShiftState].Normal.Chars[index] = 0;
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}
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}
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void
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VirtualKey::SetDeadChar(ShiftState aShiftState, PRUnichar aDeadChar)
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{
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NS_ASSERTION(aShiftState < ArrayLength(mShiftStates), "invalid index");
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SetDeadKey(aShiftState, true);
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mShiftStates[aShiftState].DeadKey.DeadChar = aDeadChar;
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mShiftStates[aShiftState].DeadKey.Table = nullptr;
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}
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UniCharsAndModifiers
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VirtualKey::GetUniChars(ShiftState aShiftState) const
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{
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UniCharsAndModifiers result = GetNativeUniChars(aShiftState);
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const ShiftState STATE_ALT_CONTROL = (STATE_ALT | STATE_CONTROL);
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if (!(aShiftState & STATE_ALT_CONTROL)) {
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return result;
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}
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if (!result.mLength) {
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result = GetNativeUniChars(aShiftState & ~STATE_ALT_CONTROL);
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result.FillModifiers(ShiftStateToModifiers(aShiftState));
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return result;
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}
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if ((aShiftState & STATE_ALT_CONTROL) == STATE_ALT_CONTROL) {
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// Even if the shifted chars and the unshifted chars are same, we
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// should consume the Alt key state and the Ctrl key state when
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// AltGr key is pressed. Because if we don't consume them, the input
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// events are ignored on nsEditor. (I.e., Users cannot input the
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// characters with this key combination.)
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Modifiers finalModifiers = ShiftStateToModifiers(aShiftState);
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finalModifiers &= ~(MODIFIER_ALT | MODIFIER_CONTROL);
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result.FillModifiers(finalModifiers);
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return result;
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}
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UniCharsAndModifiers unmodifiedReslt =
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GetNativeUniChars(aShiftState & ~STATE_ALT_CONTROL);
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if (!result.UniCharsEqual(unmodifiedReslt)) {
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// Otherwise, we should consume the Alt key state and the Ctrl key state
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// only when the shifted chars and unshifted chars are different.
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Modifiers finalModifiers = ShiftStateToModifiers(aShiftState);
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finalModifiers &= ~(MODIFIER_ALT | MODIFIER_CONTROL);
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result.FillModifiers(finalModifiers);
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}
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return result;
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}
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UniCharsAndModifiers
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VirtualKey::GetNativeUniChars(ShiftState aShiftState) const
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{
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UniCharsAndModifiers result;
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Modifiers modifiers = ShiftStateToModifiers(aShiftState);
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if (IsDeadKey(aShiftState)) {
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result.Append(mShiftStates[aShiftState].DeadKey.DeadChar, modifiers);
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return result;
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}
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uint32_t index;
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uint32_t len = ArrayLength(mShiftStates[aShiftState].Normal.Chars);
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for (index = 0;
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index < len && mShiftStates[aShiftState].Normal.Chars[index]; index++) {
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result.Append(mShiftStates[aShiftState].Normal.Chars[index], modifiers);
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}
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return result;
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}
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// static
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void
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VirtualKey::FillKbdState(PBYTE aKbdState,
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const ShiftState aShiftState)
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{
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NS_ASSERTION(aShiftState < 16, "aShiftState out of range");
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if (aShiftState & STATE_SHIFT) {
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aKbdState[VK_SHIFT] |= 0x80;
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} else {
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aKbdState[VK_SHIFT] &= ~0x80;
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aKbdState[VK_LSHIFT] &= ~0x80;
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aKbdState[VK_RSHIFT] &= ~0x80;
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}
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if (aShiftState & STATE_CONTROL) {
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aKbdState[VK_CONTROL] |= 0x80;
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} else {
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aKbdState[VK_CONTROL] &= ~0x80;
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aKbdState[VK_LCONTROL] &= ~0x80;
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aKbdState[VK_RCONTROL] &= ~0x80;
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}
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if (aShiftState & STATE_ALT) {
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aKbdState[VK_MENU] |= 0x80;
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} else {
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aKbdState[VK_MENU] &= ~0x80;
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aKbdState[VK_LMENU] &= ~0x80;
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aKbdState[VK_RMENU] &= ~0x80;
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}
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if (aShiftState & STATE_CAPSLOCK) {
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aKbdState[VK_CAPITAL] |= 0x01;
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} else {
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aKbdState[VK_CAPITAL] &= ~0x01;
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}
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}
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/*****************************************************************************
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* mozilla::widget::NativeKey
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*****************************************************************************/
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NativeKey::NativeKey(nsWindowBase* aWidget,
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const MSG& aKeyOrCharMessage,
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const ModifierKeyState& aModKeyState,
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const nsFakeCharMessage* aFakeCharMessage) :
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mWidget(aWidget), mMsg(aKeyOrCharMessage), mDOMKeyCode(0),
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mModKeyState(aModKeyState), mVirtualKeyCode(0), mOriginalVirtualKeyCode(0),
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mIsFakeCharMsg(false)
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{
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MOZ_ASSERT(aWidget);
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KeyboardLayout* keyboardLayout = KeyboardLayout::GetInstance();
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mKeyboardLayout = keyboardLayout->GetLayout();
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mScanCode = WinUtils::GetScanCode(mMsg.lParam);
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mIsExtended = WinUtils::IsExtendedScanCode(mMsg.lParam);
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memset(&mCharMsg, 0, sizeof(MSG));
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// On WinXP and WinServer2003, we cannot compute the virtual keycode for
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// extended keys due to the API limitation.
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bool canComputeVirtualKeyCodeFromScanCode =
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(!mIsExtended || WinUtils::GetWindowsVersion() >= WinUtils::VISTA_VERSION);
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switch (mMsg.message) {
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case WM_KEYDOWN:
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case WM_SYSKEYDOWN:
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// Store following WM_*CHAR message into mCharMsg.
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if (aFakeCharMessage) {
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mCharMsg = aFakeCharMessage->GetCharMessage(mMsg.hwnd);
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mIsFakeCharMsg = true;
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} else {
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MSG msg;
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if (WinUtils::PeekMessage(&msg, mMsg.hwnd, WM_KEYFIRST, WM_KEYLAST,
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PM_NOREMOVE | PM_NOYIELD) &&
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(msg.message == WM_CHAR || msg.message == WM_SYSCHAR ||
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msg.message == WM_DEADCHAR)) {
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mCharMsg = msg;
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}
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}
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case WM_KEYUP:
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case WM_SYSKEYUP: {
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// First, resolve the IME converted virtual keycode to its original
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// keycode.
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if (mMsg.wParam == VK_PROCESSKEY) {
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mOriginalVirtualKeyCode =
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static_cast<uint8_t>(::ImmGetVirtualKey(mMsg.hwnd));
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} else {
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mOriginalVirtualKeyCode = static_cast<uint8_t>(mMsg.wParam);
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}
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// Most keys are not distinguished as left or right keys.
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bool isLeftRightDistinguishedKey = false;
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// mOriginalVirtualKeyCode must not distinguish left or right of
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// Shift, Control or Alt.
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switch (mOriginalVirtualKeyCode) {
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case VK_SHIFT:
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case VK_CONTROL:
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case VK_MENU:
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isLeftRightDistinguishedKey = true;
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break;
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case VK_LSHIFT:
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case VK_RSHIFT:
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mVirtualKeyCode = mOriginalVirtualKeyCode;
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mOriginalVirtualKeyCode = VK_SHIFT;
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isLeftRightDistinguishedKey = true;
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break;
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case VK_LCONTROL:
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case VK_RCONTROL:
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mVirtualKeyCode = mOriginalVirtualKeyCode;
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mOriginalVirtualKeyCode = VK_CONTROL;
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isLeftRightDistinguishedKey = true;
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break;
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case VK_LMENU:
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case VK_RMENU:
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mVirtualKeyCode = mOriginalVirtualKeyCode;
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mOriginalVirtualKeyCode = VK_MENU;
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isLeftRightDistinguishedKey = true;
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break;
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}
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// If virtual keycode (left-right distinguished keycode) is already
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// computed, we don't need to do anymore.
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if (mVirtualKeyCode) {
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break;
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}
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// If the keycode doesn't have LR distinguished keycode, we just set
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// mOriginalVirtualKeyCode to mVirtualKeyCode. Note that don't compute
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// it from MapVirtualKeyEx() because the scan code might be wrong if
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// the message is sent/posted by other application. Then, we will compute
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// unexpected keycode from the scan code.
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if (!isLeftRightDistinguishedKey) {
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break;
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}
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if (!canComputeVirtualKeyCodeFromScanCode) {
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// The right control key and the right alt key are extended keys.
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// Therefore, we never get VK_RCONTRL and VK_RMENU for the result of
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// MapVirtualKeyEx() on WinXP or WinServer2003.
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//
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// If VK_CONTROL or VK_MENU key message is caused by an extended key,
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// we should assume that the right key of them is pressed.
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switch (mOriginalVirtualKeyCode) {
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case VK_CONTROL:
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mVirtualKeyCode = VK_RCONTROL;
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break;
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case VK_MENU:
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mVirtualKeyCode = VK_RMENU;
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break;
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case VK_SHIFT:
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// Neither left shift nor right shift is not an extended key,
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// let's use VK_LSHIFT for invalid scan code.
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mVirtualKeyCode = VK_LSHIFT;
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break;
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default:
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MOZ_NOT_REACHED("Unsupported mOriginalVirtualKeyCode");
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break;
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}
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break;
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}
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NS_ASSERTION(!mVirtualKeyCode,
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"mVirtualKeyCode has been computed already");
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// Otherwise, compute the virtual keycode with MapVirtualKeyEx().
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mVirtualKeyCode = ComputeVirtualKeyCodeFromScanCodeEx();
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// The result might be unexpected value due to the scan code is
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// wrong. For example, any key messages can be generated by
|
|
// SendMessage() or PostMessage() from applications. So, it's possible
|
|
// failure. Then, let's respect the extended flag even if it might be
|
|
// set intentionally.
|
|
switch (mOriginalVirtualKeyCode) {
|
|
case VK_CONTROL:
|
|
if (mVirtualKeyCode != VK_LCONTROL &&
|
|
mVirtualKeyCode != VK_RCONTROL) {
|
|
mVirtualKeyCode = mIsExtended ? VK_RCONTROL : VK_LCONTROL;
|
|
}
|
|
break;
|
|
case VK_MENU:
|
|
if (mVirtualKeyCode != VK_LMENU && mVirtualKeyCode != VK_RMENU) {
|
|
mVirtualKeyCode = mIsExtended ? VK_RMENU : VK_LMENU;
|
|
}
|
|
break;
|
|
case VK_SHIFT:
|
|
if (mVirtualKeyCode != VK_LSHIFT && mVirtualKeyCode != VK_RSHIFT) {
|
|
// Neither left shift nor right shift is not an extended key,
|
|
// let's use VK_LSHIFT for invalid scan code.
|
|
mVirtualKeyCode = VK_LSHIFT;
|
|
}
|
|
break;
|
|
default:
|
|
MOZ_NOT_REACHED("Unsupported mOriginalVirtualKeyCode");
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case WM_CHAR:
|
|
case WM_UNICHAR:
|
|
case WM_SYSCHAR:
|
|
// We cannot compute the virtual key code from WM_CHAR message on WinXP
|
|
// if it's caused by an extended key.
|
|
if (!canComputeVirtualKeyCodeFromScanCode) {
|
|
break;
|
|
}
|
|
mVirtualKeyCode = mOriginalVirtualKeyCode =
|
|
ComputeVirtualKeyCodeFromScanCodeEx();
|
|
break;
|
|
default:
|
|
MOZ_NOT_REACHED("Unsupported message");
|
|
break;
|
|
}
|
|
|
|
if (!mVirtualKeyCode) {
|
|
mVirtualKeyCode = mOriginalVirtualKeyCode;
|
|
}
|
|
|
|
mDOMKeyCode =
|
|
keyboardLayout->ConvertNativeKeyCodeToDOMKeyCode(mOriginalVirtualKeyCode);
|
|
mKeyNameIndex =
|
|
keyboardLayout->ConvertNativeKeyCodeToKeyNameIndex(mOriginalVirtualKeyCode);
|
|
|
|
keyboardLayout->InitNativeKey(*this, mModKeyState);
|
|
|
|
mIsDeadKey =
|
|
(mCharMsg.message == WM_DEADCHAR ||
|
|
keyboardLayout->IsDeadKey(mOriginalVirtualKeyCode, mModKeyState));
|
|
mIsPrintableKey = KeyboardLayout::IsPrintableCharKey(mOriginalVirtualKeyCode);
|
|
}
|
|
|
|
bool
|
|
NativeKey::IsIMEDoingKakuteiUndo() const
|
|
{
|
|
// Following message pattern is caused by "Kakutei-Undo" of ATOK or WXG:
|
|
// ---------------------------------------------------------------------------
|
|
// WM_KEYDOWN * n (wParam = VK_BACK, lParam = 0x1)
|
|
// WM_KEYUP * 1 (wParam = VK_BACK, lParam = 0xC0000001) # ATOK
|
|
// WM_IME_STARTCOMPOSITION * 1 (wParam = 0x0, lParam = 0x0)
|
|
// WM_IME_COMPOSITION * 1 (wParam = 0x0, lParam = 0x1BF)
|
|
// WM_CHAR * n (wParam = VK_BACK, lParam = 0x1)
|
|
// WM_KEYUP * 1 (wParam = VK_BACK, lParam = 0xC00E0001)
|
|
// ---------------------------------------------------------------------------
|
|
// This doesn't match usual key message pattern such as:
|
|
// WM_KEYDOWN -> WM_CHAR -> WM_KEYDOWN -> WM_CHAR -> ... -> WM_KEYUP
|
|
// See following bugs for the detail.
|
|
// https://bugzilla.mozilla.gr.jp/show_bug.cgi?id=2885 (written in Japanese)
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=194559 (written in English)
|
|
MSG startCompositionMsg, compositionMsg, charMsg;
|
|
return WinUtils::PeekMessage(&startCompositionMsg, mMsg.hwnd,
|
|
WM_IME_STARTCOMPOSITION, WM_IME_STARTCOMPOSITION,
|
|
PM_NOREMOVE | PM_NOYIELD) &&
|
|
WinUtils::PeekMessage(&compositionMsg, mMsg.hwnd, WM_IME_COMPOSITION,
|
|
WM_IME_COMPOSITION, PM_NOREMOVE | PM_NOYIELD) &&
|
|
WinUtils::PeekMessage(&charMsg, mMsg.hwnd, WM_CHAR, WM_CHAR,
|
|
PM_NOREMOVE | PM_NOYIELD) &&
|
|
startCompositionMsg.wParam == 0x0 &&
|
|
startCompositionMsg.lParam == 0x0 &&
|
|
compositionMsg.wParam == 0x0 &&
|
|
compositionMsg.lParam == 0x1BF &&
|
|
charMsg.wParam == VK_BACK && charMsg.lParam == 0x1 &&
|
|
startCompositionMsg.time <= compositionMsg.time &&
|
|
compositionMsg.time <= charMsg.time;
|
|
}
|
|
|
|
UINT
|
|
NativeKey::GetScanCodeWithExtendedFlag() const
|
|
{
|
|
// MapVirtualKeyEx() has been improved for supporting extended keys since
|
|
// Vista. When we call it for mapping a scancode of an extended key and
|
|
// a virtual keycode, we need to add 0xE000 to the scancode.
|
|
// On Win XP and Win Server 2003, this doesn't support. On them, we have
|
|
// no way to get virtual keycodes from scancode of extended keys.
|
|
if (!mIsExtended ||
|
|
WinUtils::GetWindowsVersion() < WinUtils::VISTA_VERSION) {
|
|
return mScanCode;
|
|
}
|
|
return (0xE000 | mScanCode);
|
|
}
|
|
|
|
uint32_t
|
|
NativeKey::GetKeyLocation() const
|
|
{
|
|
switch (mVirtualKeyCode) {
|
|
case VK_LSHIFT:
|
|
case VK_LCONTROL:
|
|
case VK_LMENU:
|
|
case VK_LWIN:
|
|
return nsIDOMKeyEvent::DOM_KEY_LOCATION_LEFT;
|
|
|
|
case VK_RSHIFT:
|
|
case VK_RCONTROL:
|
|
case VK_RMENU:
|
|
case VK_RWIN:
|
|
return nsIDOMKeyEvent::DOM_KEY_LOCATION_RIGHT;
|
|
|
|
case VK_RETURN:
|
|
// XXX This code assumes that all keyboard drivers use same mapping.
|
|
return !mIsExtended ? nsIDOMKeyEvent::DOM_KEY_LOCATION_STANDARD :
|
|
nsIDOMKeyEvent::DOM_KEY_LOCATION_NUMPAD;
|
|
|
|
case VK_INSERT:
|
|
case VK_DELETE:
|
|
case VK_END:
|
|
case VK_DOWN:
|
|
case VK_NEXT:
|
|
case VK_LEFT:
|
|
case VK_CLEAR:
|
|
case VK_RIGHT:
|
|
case VK_HOME:
|
|
case VK_UP:
|
|
case VK_PRIOR:
|
|
// XXX This code assumes that all keyboard drivers use same mapping.
|
|
return mIsExtended ? nsIDOMKeyEvent::DOM_KEY_LOCATION_STANDARD :
|
|
nsIDOMKeyEvent::DOM_KEY_LOCATION_NUMPAD;
|
|
|
|
// NumLock key isn't included due to IE9's behavior.
|
|
case VK_NUMPAD0:
|
|
case VK_NUMPAD1:
|
|
case VK_NUMPAD2:
|
|
case VK_NUMPAD3:
|
|
case VK_NUMPAD4:
|
|
case VK_NUMPAD5:
|
|
case VK_NUMPAD6:
|
|
case VK_NUMPAD7:
|
|
case VK_NUMPAD8:
|
|
case VK_NUMPAD9:
|
|
case VK_DECIMAL:
|
|
case VK_DIVIDE:
|
|
case VK_MULTIPLY:
|
|
case VK_SUBTRACT:
|
|
case VK_ADD:
|
|
return nsIDOMKeyEvent::DOM_KEY_LOCATION_NUMPAD;
|
|
|
|
case VK_SHIFT:
|
|
case VK_CONTROL:
|
|
case VK_MENU:
|
|
NS_WARNING("Failed to decide the key location?");
|
|
|
|
default:
|
|
return nsIDOMKeyEvent::DOM_KEY_LOCATION_STANDARD;
|
|
}
|
|
}
|
|
|
|
uint8_t
|
|
NativeKey::ComputeVirtualKeyCodeFromScanCode() const
|
|
{
|
|
return static_cast<uint8_t>(
|
|
::MapVirtualKeyEx(mScanCode, MAPVK_VSC_TO_VK, mKeyboardLayout));
|
|
}
|
|
|
|
uint8_t
|
|
NativeKey::ComputeVirtualKeyCodeFromScanCodeEx() const
|
|
{
|
|
bool VistaOrLater =
|
|
(WinUtils::GetWindowsVersion() >= WinUtils::VISTA_VERSION);
|
|
// NOTE: WinXP doesn't support mapping scan code to virtual keycode of
|
|
// extended keys.
|
|
NS_ENSURE_TRUE(!mIsExtended || VistaOrLater, 0);
|
|
return static_cast<uint8_t>(
|
|
::MapVirtualKeyEx(GetScanCodeWithExtendedFlag(), MAPVK_VSC_TO_VK_EX,
|
|
mKeyboardLayout));
|
|
}
|
|
|
|
PRUnichar
|
|
NativeKey::ComputeUnicharFromScanCode() const
|
|
{
|
|
return static_cast<PRUnichar>(
|
|
::MapVirtualKeyEx(ComputeVirtualKeyCodeFromScanCode(),
|
|
MAPVK_VK_TO_CHAR, mKeyboardLayout));
|
|
}
|
|
|
|
void
|
|
NativeKey::InitKeyEvent(nsKeyEvent& aKeyEvent,
|
|
const ModifierKeyState& aModKeyState) const
|
|
{
|
|
nsIntPoint point(0, 0);
|
|
mWidget->InitEvent(aKeyEvent, &point);
|
|
|
|
switch (aKeyEvent.message) {
|
|
case NS_KEY_DOWN:
|
|
aKeyEvent.keyCode = mDOMKeyCode;
|
|
break;
|
|
case NS_KEY_UP:
|
|
aKeyEvent.keyCode = mDOMKeyCode;
|
|
// Set defaultPrevented of the key event if the VK_MENU is not a system
|
|
// key release, so that the menu bar does not trigger. This helps avoid
|
|
// triggering the menu bar for ALT key accelerators used in assistive
|
|
// technologies such as Window-Eyes and ZoomText or for switching open
|
|
// state of IME.
|
|
aKeyEvent.mFlags.mDefaultPrevented =
|
|
(mOriginalVirtualKeyCode == VK_MENU && mMsg.message != WM_SYSKEYUP);
|
|
break;
|
|
case NS_KEY_PRESS:
|
|
break;
|
|
default:
|
|
MOZ_NOT_REACHED("Invalid event message");
|
|
break;
|
|
}
|
|
|
|
aKeyEvent.mKeyNameIndex = mKeyNameIndex;
|
|
aKeyEvent.location = GetKeyLocation();
|
|
aModKeyState.InitInputEvent(aKeyEvent);
|
|
}
|
|
|
|
bool
|
|
NativeKey::DispatchKeyEvent(nsKeyEvent& aKeyEvent,
|
|
const MSG* aMsgSentToPlugin) const
|
|
{
|
|
KeyboardLayout::NotifyIdleServiceOfUserActivity();
|
|
|
|
NPEvent pluginEvent;
|
|
if (aMsgSentToPlugin &&
|
|
mWidget->GetInputContext().mIMEState.mEnabled == IMEState::PLUGIN) {
|
|
pluginEvent.event = aMsgSentToPlugin->message;
|
|
pluginEvent.wParam = aMsgSentToPlugin->wParam;
|
|
pluginEvent.lParam = aMsgSentToPlugin->lParam;
|
|
aKeyEvent.pluginEvent = static_cast<void*>(&pluginEvent);
|
|
}
|
|
|
|
return mWidget->DispatchWindowEvent(&aKeyEvent);
|
|
}
|
|
|
|
bool
|
|
NativeKey::DispatchKeyDownEvent(bool* aEventDispatched) const
|
|
{
|
|
MOZ_ASSERT(mMsg.message == WM_KEYDOWN || mMsg.message == WM_SYSKEYDOWN);
|
|
|
|
if (aEventDispatched) {
|
|
*aEventDispatched = false;
|
|
}
|
|
|
|
// Ignore [shift+]alt+space so the OS can handle it.
|
|
if (mModKeyState.IsAlt() && !mModKeyState.IsControl() &&
|
|
mVirtualKeyCode == VK_SPACE) {
|
|
return false;
|
|
}
|
|
|
|
nsKeyEvent keydownEvent(true, NS_KEY_DOWN, mWidget);
|
|
InitKeyEvent(keydownEvent, mModKeyState);
|
|
if (aEventDispatched) {
|
|
*aEventDispatched = true;
|
|
}
|
|
return DispatchKeyEvent(keydownEvent, &mMsg);
|
|
}
|
|
|
|
bool
|
|
NativeKey::HandleCharMessage(const MSG& aCharMsg,
|
|
bool* aEventDispatched,
|
|
const EventFlags* aExtraFlags) const
|
|
{
|
|
MOZ_ASSERT(mMsg.message == WM_KEYDOWN || mMsg.message == WM_SYSKEYDOWN ||
|
|
mMsg.message == WM_CHAR || mMsg.message == WM_SYSCHAR);
|
|
MOZ_ASSERT(aCharMsg.message == WM_CHAR || aCharMsg.message == WM_SYSCHAR);
|
|
|
|
if (aEventDispatched) {
|
|
*aEventDispatched = false;
|
|
}
|
|
|
|
// Alt+Space key is handled by OS, we shouldn't touch it.
|
|
if (mModKeyState.IsAlt() && !mModKeyState.IsControl() &&
|
|
mVirtualKeyCode == VK_SPACE) {
|
|
return false;
|
|
}
|
|
|
|
// Bug 818235: Ignore Ctrl+Enter.
|
|
if (!mModKeyState.IsAlt() && mModKeyState.IsControl() &&
|
|
mVirtualKeyCode == VK_RETURN) {
|
|
return false;
|
|
}
|
|
|
|
// XXXmnakao I think that if aNativeKeyDown is null, such lonely WM_CHAR
|
|
// should cause composition events because they are not caused
|
|
// by actual keyboard operation.
|
|
|
|
static const PRUnichar U_SPACE = 0x20;
|
|
static const PRUnichar U_EQUAL = 0x3D;
|
|
|
|
// First, handle normal text input or non-printable key case here.
|
|
if ((!mModKeyState.IsAlt() && !mModKeyState.IsControl()) ||
|
|
mModKeyState.IsAltGr() ||
|
|
(mOriginalVirtualKeyCode &&
|
|
!KeyboardLayout::IsPrintableCharKey(mOriginalVirtualKeyCode))) {
|
|
nsKeyEvent keypressEvent(true, NS_KEY_PRESS, mWidget);
|
|
if (aExtraFlags) {
|
|
keypressEvent.mFlags.Union(*aExtraFlags);
|
|
}
|
|
if (aCharMsg.wParam >= U_SPACE) {
|
|
keypressEvent.charCode = static_cast<uint32_t>(aCharMsg.wParam);
|
|
} else {
|
|
keypressEvent.keyCode = mDOMKeyCode;
|
|
}
|
|
// When AltGr (Alt+Ctrl) is pressed, that causes normal text input.
|
|
// At this time, if either alt or ctrl flag is set, nsEditor ignores the
|
|
// keypress event. For avoiding this issue, we should remove ctrl and alt
|
|
// flags.
|
|
ModifierKeyState modKeyState(mModKeyState);
|
|
modKeyState.Unset(MODIFIER_ALT | MODIFIER_CONTROL);
|
|
InitKeyEvent(keypressEvent, modKeyState);
|
|
if (aEventDispatched) {
|
|
*aEventDispatched = true;
|
|
}
|
|
return DispatchKeyEvent(keypressEvent, &aCharMsg);
|
|
}
|
|
|
|
// XXX It seems that following code was implemented for shortcut key
|
|
// handling. However, it's now handled in WM_KEYDOWN message handler.
|
|
// So, this actually runs only when WM_CHAR is sent/posted without
|
|
// WM_KEYDOWN. I think that we don't need to keypress event in such
|
|
// case especially for shortcut keys.
|
|
|
|
PRUnichar uniChar;
|
|
// Ctrl+A Ctrl+Z, see Programming Windows 3.1 page 110 for details
|
|
if (mModKeyState.IsControl() && aCharMsg.wParam <= 0x1A) {
|
|
// Bug 16486: Need to account for shift here.
|
|
uniChar = aCharMsg.wParam - 1 + (mModKeyState.IsShift() ? 'A' : 'a');
|
|
} else if (mModKeyState.IsControl() && aCharMsg.wParam <= 0x1F) {
|
|
// Bug 50255: <ctrl><[> and <ctrl><]> are not being processed.
|
|
// also fixes ctrl+\ (x1c), ctrl+^ (x1e) and ctrl+_ (x1f)
|
|
// for some reason the keypress handler need to have the uniChar code set
|
|
// with the addition of a upper case A not the lower case.
|
|
uniChar = aCharMsg.wParam - 1 + 'A';
|
|
} else if (aCharMsg.wParam < U_SPACE ||
|
|
(aCharMsg.wParam == U_EQUAL && mModKeyState.IsControl())) {
|
|
uniChar = 0;
|
|
} else {
|
|
uniChar = aCharMsg.wParam;
|
|
}
|
|
|
|
// Bug 50255 and Bug 351310: Keep the characters unshifted for shortcuts and
|
|
// accesskeys and make sure that numbers are always passed as such.
|
|
if (uniChar && (mModKeyState.IsControl() || mModKeyState.IsAlt())) {
|
|
KeyboardLayout* keyboardLayout = KeyboardLayout::GetInstance();
|
|
PRUnichar unshiftedCharCode =
|
|
(mVirtualKeyCode >= '0' && mVirtualKeyCode <= '9') ?
|
|
mVirtualKeyCode : mModKeyState.IsShift() ?
|
|
ComputeUnicharFromScanCode() : 0;
|
|
// Ignore diacritics (top bit set) and key mapping errors (char code 0)
|
|
if (static_cast<int32_t>(unshiftedCharCode) > 0) {
|
|
uniChar = unshiftedCharCode;
|
|
}
|
|
}
|
|
|
|
// Bug 285161 and Bug 295095: They were caused by the initial fix for
|
|
// bug 178110. When pressing (alt|ctrl)+char, the char must be lowercase
|
|
// unless shift is pressed too.
|
|
if (!mModKeyState.IsShift() &&
|
|
(mModKeyState.IsAlt() || mModKeyState.IsControl())) {
|
|
uniChar = towlower(uniChar);
|
|
}
|
|
|
|
nsKeyEvent keypressEvent(true, NS_KEY_PRESS, mWidget);
|
|
if (aExtraFlags) {
|
|
keypressEvent.mFlags.Union(*aExtraFlags);
|
|
}
|
|
keypressEvent.charCode = uniChar;
|
|
if (!keypressEvent.charCode) {
|
|
keypressEvent.keyCode = mDOMKeyCode;
|
|
}
|
|
InitKeyEvent(keypressEvent, mModKeyState);
|
|
if (aEventDispatched) {
|
|
*aEventDispatched = true;
|
|
}
|
|
return DispatchKeyEvent(keypressEvent, &aCharMsg);
|
|
}
|
|
|
|
bool
|
|
NativeKey::HandleKeyUpMessage(bool* aEventDispatched) const
|
|
{
|
|
MOZ_ASSERT(mMsg.message == WM_KEYUP || mMsg.message == WM_SYSKEYUP);
|
|
|
|
if (aEventDispatched) {
|
|
*aEventDispatched = false;
|
|
}
|
|
|
|
// Ignore [shift+]alt+space so the OS can handle it.
|
|
if (mModKeyState.IsAlt() && !mModKeyState.IsControl() &&
|
|
mVirtualKeyCode == VK_SPACE) {
|
|
return false;
|
|
}
|
|
|
|
nsKeyEvent keyupEvent(true, NS_KEY_UP, mWidget);
|
|
InitKeyEvent(keyupEvent, mModKeyState);
|
|
if (aEventDispatched) {
|
|
*aEventDispatched = true;
|
|
}
|
|
return DispatchKeyEvent(keyupEvent, &mMsg);
|
|
}
|
|
|
|
bool
|
|
NativeKey::NeedsToHandleWithoutFollowingCharMessages() const
|
|
{
|
|
MOZ_ASSERT(mMsg.message == WM_KEYDOWN || mMsg.message == WM_SYSKEYDOWN);
|
|
|
|
// Enter and backspace are always handled here to avoid for example the
|
|
// confusion between ctrl-enter and ctrl-J.
|
|
if (mDOMKeyCode == NS_VK_RETURN || mDOMKeyCode == NS_VK_BACK) {
|
|
return true;
|
|
}
|
|
|
|
// If any modifier keys which may cause printable keys becoming non-printable
|
|
// are not pressed, we don't need special handling for the key.
|
|
if (!mModKeyState.IsControl() && !mModKeyState.IsAlt() &&
|
|
!mModKeyState.IsWin()) {
|
|
return false;
|
|
}
|
|
|
|
// If the key event causes dead key event, we don't need to dispatch keypress
|
|
// event.
|
|
if (mIsDeadKey) {
|
|
return false;
|
|
}
|
|
|
|
// Even if the key is a printable key, it might cause non-printable character
|
|
// input with modifier key(s).
|
|
return IsPrintableKey();
|
|
}
|
|
|
|
const MSG&
|
|
NativeKey::RemoveFollowingCharMessage() const
|
|
{
|
|
MOZ_ASSERT(IsFollowedByCharMessage());
|
|
|
|
if (mIsFakeCharMsg) {
|
|
return mCharMsg;
|
|
}
|
|
|
|
MSG msg;
|
|
if (!WinUtils::GetMessage(&msg, mMsg.hwnd,
|
|
mCharMsg.message, mCharMsg.message)) {
|
|
MOZ_NOT_REACHED("We lost the following char message");
|
|
return mCharMsg;
|
|
}
|
|
|
|
MOZ_ASSERT(mCharMsg.message == msg.message &&
|
|
mCharMsg.wParam == msg.wParam &&
|
|
mCharMsg.lParam == msg.lParam);
|
|
|
|
return mCharMsg;
|
|
}
|
|
|
|
void
|
|
NativeKey::RemoveMessageAndDispatchPluginEvent(UINT aFirstMsg,
|
|
UINT aLastMsg) const
|
|
{
|
|
MSG msg;
|
|
if (mIsFakeCharMsg) {
|
|
if (aFirstMsg > WM_CHAR || aLastMsg < WM_CHAR) {
|
|
return;
|
|
}
|
|
msg = mCharMsg;
|
|
} else {
|
|
WinUtils::GetMessage(&msg, mMsg.hwnd, aFirstMsg, aLastMsg);
|
|
}
|
|
mWidget->DispatchPluginEvent(msg);
|
|
}
|
|
|
|
bool
|
|
NativeKey::DispatchKeyPressEventsAndDiscardsCharMessages(
|
|
const UniCharsAndModifiers& aInputtingChars,
|
|
const EventFlags& aExtraFlags) const
|
|
{
|
|
MOZ_ASSERT(mMsg.message == WM_KEYDOWN || mMsg.message == WM_SYSKEYDOWN);
|
|
|
|
// Remove a possible WM_CHAR or WM_SYSCHAR messages from the message queue.
|
|
// They can be more than one because of:
|
|
// * Dead-keys not pairing with base character
|
|
// * Some keyboard layouts may map up to 4 characters to the single key
|
|
bool anyCharMessagesRemoved = false;
|
|
|
|
if (mIsFakeCharMsg) {
|
|
RemoveMessageAndDispatchPluginEvent(WM_KEYFIRST, WM_KEYLAST);
|
|
anyCharMessagesRemoved = true;
|
|
} else {
|
|
MSG msg;
|
|
bool gotMsg =
|
|
WinUtils::PeekMessage(&msg, mMsg.hwnd, WM_KEYFIRST, WM_KEYLAST,
|
|
PM_NOREMOVE | PM_NOYIELD);
|
|
while (gotMsg && (msg.message == WM_CHAR || msg.message == WM_SYSCHAR)) {
|
|
RemoveMessageAndDispatchPluginEvent(WM_KEYFIRST, WM_KEYLAST);
|
|
anyCharMessagesRemoved = true;
|
|
gotMsg = WinUtils::PeekMessage(&msg, mMsg.hwnd, WM_KEYFIRST, WM_KEYLAST,
|
|
PM_NOREMOVE | PM_NOYIELD);
|
|
}
|
|
}
|
|
|
|
if (!anyCharMessagesRemoved &&
|
|
mDOMKeyCode == NS_VK_BACK && IsIMEDoingKakuteiUndo()) {
|
|
MOZ_ASSERT(!mIsFakeCharMsg);
|
|
RemoveMessageAndDispatchPluginEvent(WM_CHAR, WM_CHAR);
|
|
}
|
|
|
|
return DispatchKeyPressEventsWithKeyboardLayout(aInputtingChars, aExtraFlags);
|
|
}
|
|
|
|
bool
|
|
NativeKey::DispatchKeyPressEventsWithKeyboardLayout(
|
|
const UniCharsAndModifiers& aInputtingChars,
|
|
const EventFlags& aExtraFlags) const
|
|
{
|
|
MOZ_ASSERT(mMsg.message == WM_KEYDOWN || mMsg.message == WM_SYSKEYDOWN);
|
|
MOZ_ASSERT(!mIsDeadKey);
|
|
|
|
KeyboardLayout* keyboardLayout = KeyboardLayout::GetInstance();
|
|
|
|
UniCharsAndModifiers inputtingChars(aInputtingChars);
|
|
UniCharsAndModifiers shiftedChars;
|
|
UniCharsAndModifiers unshiftedChars;
|
|
uint32_t shiftedLatinChar = 0;
|
|
uint32_t unshiftedLatinChar = 0;
|
|
|
|
if (!KeyboardLayout::IsPrintableCharKey(mVirtualKeyCode)) {
|
|
inputtingChars.Clear();
|
|
}
|
|
|
|
if (mModKeyState.IsControl() ^ mModKeyState.IsAlt()) {
|
|
ModifierKeyState capsLockState(
|
|
mModKeyState.GetModifiers() & MODIFIER_CAPSLOCK);
|
|
|
|
unshiftedChars =
|
|
keyboardLayout->GetUniCharsAndModifiers(mVirtualKeyCode, capsLockState);
|
|
capsLockState.Set(MODIFIER_SHIFT);
|
|
shiftedChars =
|
|
keyboardLayout->GetUniCharsAndModifiers(mVirtualKeyCode, capsLockState);
|
|
|
|
// The current keyboard cannot input alphabets or numerics,
|
|
// we should append them for Shortcut/Access keys.
|
|
// E.g., for Cyrillic keyboard layout.
|
|
capsLockState.Unset(MODIFIER_SHIFT);
|
|
WidgetUtils::GetLatinCharCodeForKeyCode(mDOMKeyCode,
|
|
capsLockState.GetModifiers(),
|
|
&unshiftedLatinChar,
|
|
&shiftedLatinChar);
|
|
|
|
// If the shiftedLatinChar isn't 0, the key code is NS_VK_[A-Z].
|
|
if (shiftedLatinChar) {
|
|
// If the produced characters of the key on current keyboard layout
|
|
// are same as computed Latin characters, we shouldn't append the
|
|
// Latin characters to alternativeCharCode.
|
|
if (unshiftedLatinChar == unshiftedChars.mChars[0] &&
|
|
shiftedLatinChar == shiftedChars.mChars[0]) {
|
|
shiftedLatinChar = unshiftedLatinChar = 0;
|
|
}
|
|
} else if (unshiftedLatinChar) {
|
|
// If the shiftedLatinChar is 0, the keyCode doesn't produce
|
|
// alphabet character. At that time, the character may be produced
|
|
// with Shift key. E.g., on French keyboard layout, NS_VK_PERCENT
|
|
// key produces LATIN SMALL LETTER U WITH GRAVE (U+00F9) without
|
|
// Shift key but with Shift key, it produces '%'.
|
|
// If the unshiftedLatinChar is produced by the key on current
|
|
// keyboard layout, we shouldn't append it to alternativeCharCode.
|
|
if (unshiftedLatinChar == unshiftedChars.mChars[0] ||
|
|
unshiftedLatinChar == shiftedChars.mChars[0]) {
|
|
unshiftedLatinChar = 0;
|
|
}
|
|
}
|
|
|
|
// If the charCode is not ASCII character, we should replace the
|
|
// charCode with ASCII character only when Ctrl is pressed.
|
|
// But don't replace the charCode when the charCode is not same as
|
|
// unmodified characters. In such case, Ctrl is sometimes used for a
|
|
// part of character inputting key combination like Shift.
|
|
if (mModKeyState.IsControl()) {
|
|
uint32_t ch =
|
|
mModKeyState.IsShift() ? shiftedLatinChar : unshiftedLatinChar;
|
|
if (ch &&
|
|
(!inputtingChars.mLength ||
|
|
inputtingChars.UniCharsCaseInsensitiveEqual(
|
|
mModKeyState.IsShift() ? shiftedChars : unshiftedChars))) {
|
|
inputtingChars.Clear();
|
|
inputtingChars.Append(ch, mModKeyState.GetModifiers());
|
|
}
|
|
}
|
|
}
|
|
|
|
if (inputtingChars.IsEmpty() &&
|
|
shiftedChars.IsEmpty() && unshiftedChars.IsEmpty()) {
|
|
nsKeyEvent keypressEvent(true, NS_KEY_PRESS, mWidget);
|
|
keypressEvent.mFlags.Union(aExtraFlags);
|
|
keypressEvent.keyCode = mDOMKeyCode;
|
|
InitKeyEvent(keypressEvent, mModKeyState);
|
|
return (DispatchKeyEvent(keypressEvent) || aExtraFlags.mDefaultPrevented);
|
|
}
|
|
|
|
uint32_t longestLength =
|
|
std::max(inputtingChars.mLength,
|
|
std::max(shiftedChars.mLength, unshiftedChars.mLength));
|
|
uint32_t skipUniChars = longestLength - inputtingChars.mLength;
|
|
uint32_t skipShiftedChars = longestLength - shiftedChars.mLength;
|
|
uint32_t skipUnshiftedChars = longestLength - unshiftedChars.mLength;
|
|
UINT keyCode = !inputtingChars.mLength ? mDOMKeyCode : 0;
|
|
bool defaultPrevented = aExtraFlags.mDefaultPrevented;
|
|
for (uint32_t cnt = 0; cnt < longestLength; cnt++) {
|
|
uint16_t uniChar, shiftedChar, unshiftedChar;
|
|
uniChar = shiftedChar = unshiftedChar = 0;
|
|
ModifierKeyState modKeyState(mModKeyState);
|
|
if (skipUniChars <= cnt) {
|
|
if (cnt - skipUniChars < inputtingChars.mLength) {
|
|
// If key in combination with Alt and/or Ctrl produces a different
|
|
// character than without them then do not report these flags
|
|
// because it is separate keyboard layout shift state. If dead-key
|
|
// and base character does not produce a valid composite character
|
|
// then both produced dead-key character and following base
|
|
// character may have different modifier flags, too.
|
|
modKeyState.Unset(MODIFIER_SHIFT | MODIFIER_CONTROL | MODIFIER_ALT |
|
|
MODIFIER_ALTGRAPH | MODIFIER_CAPSLOCK);
|
|
modKeyState.Set(inputtingChars.mModifiers[cnt - skipUniChars]);
|
|
}
|
|
uniChar = inputtingChars.mChars[cnt - skipUniChars];
|
|
}
|
|
if (skipShiftedChars <= cnt)
|
|
shiftedChar = shiftedChars.mChars[cnt - skipShiftedChars];
|
|
if (skipUnshiftedChars <= cnt)
|
|
unshiftedChar = unshiftedChars.mChars[cnt - skipUnshiftedChars];
|
|
nsAutoTArray<nsAlternativeCharCode, 5> altArray;
|
|
|
|
if (shiftedChar || unshiftedChar) {
|
|
nsAlternativeCharCode chars(unshiftedChar, shiftedChar);
|
|
altArray.AppendElement(chars);
|
|
}
|
|
if (cnt == longestLength - 1) {
|
|
if (unshiftedLatinChar || shiftedLatinChar) {
|
|
nsAlternativeCharCode chars(unshiftedLatinChar, shiftedLatinChar);
|
|
altArray.AppendElement(chars);
|
|
}
|
|
|
|
// Typically, following virtual keycodes are used for a key which can
|
|
// input the character. However, these keycodes are also used for
|
|
// other keys on some keyboard layout. E.g., in spite of Shift+'1'
|
|
// inputs '+' on Thai keyboard layout, a key which is at '=/+'
|
|
// key on ANSI keyboard layout is VK_OEM_PLUS. Native applications
|
|
// handle it as '+' key if Ctrl key is pressed.
|
|
PRUnichar charForOEMKeyCode = 0;
|
|
switch (mVirtualKeyCode) {
|
|
case VK_OEM_PLUS: charForOEMKeyCode = '+'; break;
|
|
case VK_OEM_COMMA: charForOEMKeyCode = ','; break;
|
|
case VK_OEM_MINUS: charForOEMKeyCode = '-'; break;
|
|
case VK_OEM_PERIOD: charForOEMKeyCode = '.'; break;
|
|
}
|
|
if (charForOEMKeyCode &&
|
|
charForOEMKeyCode != unshiftedChars.mChars[0] &&
|
|
charForOEMKeyCode != shiftedChars.mChars[0] &&
|
|
charForOEMKeyCode != unshiftedLatinChar &&
|
|
charForOEMKeyCode != shiftedLatinChar) {
|
|
nsAlternativeCharCode OEMChars(charForOEMKeyCode, charForOEMKeyCode);
|
|
altArray.AppendElement(OEMChars);
|
|
}
|
|
}
|
|
|
|
nsKeyEvent keypressEvent(true, NS_KEY_PRESS, mWidget);
|
|
keypressEvent.mFlags.Union(aExtraFlags);
|
|
keypressEvent.charCode = uniChar;
|
|
keypressEvent.alternativeCharCodes.AppendElements(altArray);
|
|
InitKeyEvent(keypressEvent, modKeyState);
|
|
defaultPrevented = (DispatchKeyEvent(keypressEvent) || defaultPrevented);
|
|
}
|
|
|
|
return defaultPrevented;
|
|
}
|
|
|
|
bool
|
|
NativeKey::DispatchKeyPressEventForFollowingCharMessage(
|
|
const UniCharsAndModifiers& aInputtingChars,
|
|
const EventFlags& aExtraFlags) const
|
|
{
|
|
MOZ_ASSERT(mMsg.message == WM_KEYDOWN || mMsg.message == WM_SYSKEYDOWN);
|
|
|
|
const MSG& msg = RemoveFollowingCharMessage();
|
|
if (mIsFakeCharMsg) {
|
|
if (msg.message == WM_DEADCHAR) {
|
|
return aExtraFlags.mDefaultPrevented;
|
|
}
|
|
#ifdef DEBUG
|
|
if (IsPrintableKey()) {
|
|
nsPrintfCString log(
|
|
"mOriginalVirtualKeyCode=0x%02X, aInputtingChars={ mChars=[ 0x%04X, "
|
|
"0x%04X, 0x%04X, 0x%04X, 0x%04X ], mLength=%d }, wParam=0x%04X",
|
|
mOriginalVirtualKeyCode, aInputtingChars.mChars[0],
|
|
aInputtingChars.mChars[1], aInputtingChars.mChars[2],
|
|
aInputtingChars.mChars[3], aInputtingChars.mChars[4],
|
|
aInputtingChars.mLength, msg.wParam);
|
|
if (aInputtingChars.IsEmpty()) {
|
|
log.Insert("length is zero: ", 0);
|
|
NS_ERROR(log.get());
|
|
NS_ABORT();
|
|
} else if (aInputtingChars.mChars[0] != msg.wParam) {
|
|
log.Insert("character mismatch: ", 0);
|
|
NS_ERROR(log.get());
|
|
NS_ABORT();
|
|
}
|
|
}
|
|
#endif // #ifdef DEBUG
|
|
return HandleCharMessage(msg, nullptr, &aExtraFlags);
|
|
}
|
|
|
|
// If prevent default set for keydown, do same for keypress
|
|
if (msg.message == WM_DEADCHAR) {
|
|
bool defaultPrevented = aExtraFlags.mDefaultPrevented;
|
|
if (mWidget->PluginHasFocus()) {
|
|
// We need to send the removed message to focused plug-in.
|
|
defaultPrevented = mWidget->DispatchPluginEvent(msg) || defaultPrevented;
|
|
}
|
|
return defaultPrevented;
|
|
}
|
|
|
|
bool defaultPrevented = (HandleCharMessage(msg, nullptr, &aExtraFlags) ||
|
|
aExtraFlags.mDefaultPrevented);
|
|
// If a syschar keypress wasn't processed, Windows may want to
|
|
// handle it to activate a native menu.
|
|
if (!defaultPrevented && msg.message == WM_SYSCHAR) {
|
|
::DefWindowProcW(msg.hwnd, msg.message, msg.wParam, msg.lParam);
|
|
}
|
|
return defaultPrevented;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* mozilla::widget::KeyboardLayout
|
|
*****************************************************************************/
|
|
|
|
KeyboardLayout* KeyboardLayout::sInstance = nullptr;
|
|
nsIIdleServiceInternal* KeyboardLayout::sIdleService = nullptr;
|
|
|
|
// static
|
|
KeyboardLayout*
|
|
KeyboardLayout::GetInstance()
|
|
{
|
|
if (!sInstance) {
|
|
sInstance = new KeyboardLayout();
|
|
nsCOMPtr<nsIIdleServiceInternal> idleService =
|
|
do_GetService("@mozilla.org/widget/idleservice;1");
|
|
// The refcount will be decreased at shutting down.
|
|
sIdleService = idleService.forget().get();
|
|
}
|
|
return sInstance;
|
|
}
|
|
|
|
// static
|
|
void
|
|
KeyboardLayout::Shutdown()
|
|
{
|
|
delete sInstance;
|
|
sInstance = nullptr;
|
|
NS_IF_RELEASE(sIdleService);
|
|
}
|
|
|
|
// static
|
|
void
|
|
KeyboardLayout::NotifyIdleServiceOfUserActivity()
|
|
{
|
|
sIdleService->ResetIdleTimeOut(0);
|
|
}
|
|
|
|
KeyboardLayout::KeyboardLayout() :
|
|
mKeyboardLayout(0), mIsOverridden(false),
|
|
mIsPendingToRestoreKeyboardLayout(false)
|
|
{
|
|
mDeadKeyTableListHead = nullptr;
|
|
|
|
// NOTE: LoadLayout() should be called via OnLayoutChange().
|
|
}
|
|
|
|
KeyboardLayout::~KeyboardLayout()
|
|
{
|
|
ReleaseDeadKeyTables();
|
|
}
|
|
|
|
bool
|
|
KeyboardLayout::IsPrintableCharKey(uint8_t aVirtualKey)
|
|
{
|
|
return GetKeyIndex(aVirtualKey) >= 0;
|
|
}
|
|
|
|
WORD
|
|
KeyboardLayout::ComputeScanCodeForVirtualKeyCode(uint8_t aVirtualKeyCode) const
|
|
{
|
|
return static_cast<WORD>(
|
|
::MapVirtualKeyEx(aVirtualKeyCode, MAPVK_VK_TO_VSC, GetLayout()));
|
|
}
|
|
|
|
bool
|
|
KeyboardLayout::IsDeadKey(uint8_t aVirtualKey,
|
|
const ModifierKeyState& aModKeyState) const
|
|
{
|
|
int32_t virtualKeyIndex = GetKeyIndex(aVirtualKey);
|
|
if (virtualKeyIndex < 0) {
|
|
return false;
|
|
}
|
|
|
|
return mVirtualKeys[virtualKeyIndex].IsDeadKey(
|
|
VirtualKey::ModifiersToShiftState(aModKeyState.GetModifiers()));
|
|
}
|
|
|
|
void
|
|
KeyboardLayout::InitNativeKey(NativeKey& aNativeKey,
|
|
const ModifierKeyState& aModKeyState)
|
|
{
|
|
if (mIsPendingToRestoreKeyboardLayout) {
|
|
LoadLayout(::GetKeyboardLayout(0));
|
|
}
|
|
|
|
uint8_t virtualKey = aNativeKey.GetOriginalVirtualKeyCode();
|
|
int32_t virtualKeyIndex = GetKeyIndex(virtualKey);
|
|
|
|
if (virtualKeyIndex < 0) {
|
|
// Does not produce any printable characters, but still preserves the
|
|
// dead-key state.
|
|
return;
|
|
}
|
|
|
|
bool isKeyDown = aNativeKey.IsKeyDownMessage();
|
|
uint8_t shiftState =
|
|
VirtualKey::ModifiersToShiftState(aModKeyState.GetModifiers());
|
|
|
|
if (mVirtualKeys[virtualKeyIndex].IsDeadKey(shiftState)) {
|
|
if ((isKeyDown && mActiveDeadKey < 0) ||
|
|
(!isKeyDown && mActiveDeadKey == virtualKey)) {
|
|
// First dead key event doesn't generate characters.
|
|
if (isKeyDown) {
|
|
// Dead-key state activated at keydown.
|
|
mActiveDeadKey = virtualKey;
|
|
mDeadKeyShiftState = shiftState;
|
|
}
|
|
UniCharsAndModifiers deadChars =
|
|
mVirtualKeys[virtualKeyIndex].GetNativeUniChars(shiftState);
|
|
NS_ASSERTION(deadChars.mLength == 1,
|
|
"dead key must generate only one character");
|
|
aNativeKey.mKeyNameIndex =
|
|
WidgetUtils::GetDeadKeyNameIndex(deadChars.mChars[0]);
|
|
return;
|
|
}
|
|
|
|
// Dead-key followed by another dead-key. Reset dead-key state and
|
|
// return both dead-key characters.
|
|
int32_t activeDeadKeyIndex = GetKeyIndex(mActiveDeadKey);
|
|
UniCharsAndModifiers prevDeadChars =
|
|
mVirtualKeys[activeDeadKeyIndex].GetUniChars(mDeadKeyShiftState);
|
|
UniCharsAndModifiers newChars =
|
|
mVirtualKeys[virtualKeyIndex].GetUniChars(shiftState);
|
|
// But keypress events should be fired for each committed character.
|
|
aNativeKey.mCommittedCharsAndModifiers = prevDeadChars + newChars;
|
|
if (isKeyDown) {
|
|
DeactivateDeadKeyState();
|
|
}
|
|
return;
|
|
}
|
|
|
|
UniCharsAndModifiers baseChars =
|
|
mVirtualKeys[virtualKeyIndex].GetUniChars(shiftState);
|
|
if (mActiveDeadKey < 0) {
|
|
// No dead-keys are active. Just return the produced characters.
|
|
aNativeKey.mCommittedCharsAndModifiers = baseChars;
|
|
return;
|
|
}
|
|
|
|
// Dead-key was active. See if pressed base character does produce
|
|
// valid composite character.
|
|
int32_t activeDeadKeyIndex = GetKeyIndex(mActiveDeadKey);
|
|
PRUnichar compositeChar = (baseChars.mLength == 1 && baseChars.mChars[0]) ?
|
|
mVirtualKeys[activeDeadKeyIndex].GetCompositeChar(mDeadKeyShiftState,
|
|
baseChars.mChars[0]) : 0;
|
|
if (compositeChar) {
|
|
// Active dead-key and base character does produce exactly one
|
|
// composite character.
|
|
aNativeKey.mCommittedCharsAndModifiers.Append(compositeChar,
|
|
baseChars.mModifiers[0]);
|
|
if (isKeyDown) {
|
|
DeactivateDeadKeyState();
|
|
}
|
|
return;
|
|
}
|
|
|
|
// There is no valid dead-key and base character combination.
|
|
// Return dead-key character followed by base character.
|
|
UniCharsAndModifiers deadChars =
|
|
mVirtualKeys[activeDeadKeyIndex].GetUniChars(mDeadKeyShiftState);
|
|
// But keypress events should be fired for each committed character.
|
|
aNativeKey.mCommittedCharsAndModifiers = deadChars + baseChars;
|
|
if (isKeyDown) {
|
|
DeactivateDeadKeyState();
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
UniCharsAndModifiers
|
|
KeyboardLayout::GetUniCharsAndModifiers(
|
|
uint8_t aVirtualKey,
|
|
const ModifierKeyState& aModKeyState) const
|
|
{
|
|
UniCharsAndModifiers result;
|
|
int32_t key = GetKeyIndex(aVirtualKey);
|
|
if (key < 0) {
|
|
return result;
|
|
}
|
|
return mVirtualKeys[key].
|
|
GetUniChars(VirtualKey::ModifiersToShiftState(aModKeyState.GetModifiers()));
|
|
}
|
|
|
|
void
|
|
KeyboardLayout::LoadLayout(HKL aLayout)
|
|
{
|
|
mIsPendingToRestoreKeyboardLayout = false;
|
|
|
|
if (mKeyboardLayout == aLayout) {
|
|
return;
|
|
}
|
|
|
|
mKeyboardLayout = aLayout;
|
|
|
|
BYTE kbdState[256];
|
|
memset(kbdState, 0, sizeof(kbdState));
|
|
|
|
BYTE originalKbdState[256];
|
|
// Bitfield with all shift states that have at least one dead-key.
|
|
uint16_t shiftStatesWithDeadKeys = 0;
|
|
// Bitfield with all shift states that produce any possible dead-key base
|
|
// characters.
|
|
uint16_t shiftStatesWithBaseChars = 0;
|
|
|
|
mActiveDeadKey = -1;
|
|
|
|
ReleaseDeadKeyTables();
|
|
|
|
::GetKeyboardState(originalKbdState);
|
|
|
|
// For each shift state gather all printable characters that are produced
|
|
// for normal case when no any dead-key is active.
|
|
|
|
for (VirtualKey::ShiftState shiftState = 0; shiftState < 16; shiftState++) {
|
|
VirtualKey::FillKbdState(kbdState, shiftState);
|
|
for (uint32_t virtualKey = 0; virtualKey < 256; virtualKey++) {
|
|
int32_t vki = GetKeyIndex(virtualKey);
|
|
if (vki < 0) {
|
|
continue;
|
|
}
|
|
NS_ASSERTION(uint32_t(vki) < ArrayLength(mVirtualKeys), "invalid index");
|
|
PRUnichar uniChars[5];
|
|
int32_t ret =
|
|
::ToUnicodeEx(virtualKey, 0, kbdState, (LPWSTR)uniChars,
|
|
ArrayLength(uniChars), 0, mKeyboardLayout);
|
|
// dead-key
|
|
if (ret < 0) {
|
|
shiftStatesWithDeadKeys |= (1 << shiftState);
|
|
// Repeat dead-key to deactivate it and get its character
|
|
// representation.
|
|
PRUnichar deadChar[2];
|
|
ret = ::ToUnicodeEx(virtualKey, 0, kbdState, (LPWSTR)deadChar,
|
|
ArrayLength(deadChar), 0, mKeyboardLayout);
|
|
NS_ASSERTION(ret == 2, "Expecting twice repeated dead-key character");
|
|
mVirtualKeys[vki].SetDeadChar(shiftState, deadChar[0]);
|
|
} else {
|
|
if (ret == 1) {
|
|
// dead-key can pair only with exactly one base character.
|
|
shiftStatesWithBaseChars |= (1 << shiftState);
|
|
}
|
|
mVirtualKeys[vki].SetNormalChars(shiftState, uniChars, ret);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Now process each dead-key to find all its base characters and resulting
|
|
// composite characters.
|
|
for (VirtualKey::ShiftState shiftState = 0; shiftState < 16; shiftState++) {
|
|
if (!(shiftStatesWithDeadKeys & (1 << shiftState))) {
|
|
continue;
|
|
}
|
|
|
|
VirtualKey::FillKbdState(kbdState, shiftState);
|
|
|
|
for (uint32_t virtualKey = 0; virtualKey < 256; virtualKey++) {
|
|
int32_t vki = GetKeyIndex(virtualKey);
|
|
if (vki >= 0 && mVirtualKeys[vki].IsDeadKey(shiftState)) {
|
|
DeadKeyEntry deadKeyArray[256];
|
|
int32_t n = GetDeadKeyCombinations(virtualKey, kbdState,
|
|
shiftStatesWithBaseChars,
|
|
deadKeyArray,
|
|
ArrayLength(deadKeyArray));
|
|
const DeadKeyTable* dkt =
|
|
mVirtualKeys[vki].MatchingDeadKeyTable(deadKeyArray, n);
|
|
if (!dkt) {
|
|
dkt = AddDeadKeyTable(deadKeyArray, n);
|
|
}
|
|
mVirtualKeys[vki].AttachDeadKeyTable(shiftState, dkt);
|
|
}
|
|
}
|
|
}
|
|
|
|
::SetKeyboardState(originalKbdState);
|
|
}
|
|
|
|
inline int32_t
|
|
KeyboardLayout::GetKeyIndex(uint8_t aVirtualKey)
|
|
{
|
|
// Currently these 68 (NS_NUM_OF_KEYS) virtual keys are assumed
|
|
// to produce visible representation:
|
|
// 0x20 - VK_SPACE ' '
|
|
// 0x30..0x39 '0'..'9'
|
|
// 0x41..0x5A 'A'..'Z'
|
|
// 0x60..0x69 '0'..'9' on numpad
|
|
// 0x6A - VK_MULTIPLY '*' on numpad
|
|
// 0x6B - VK_ADD '+' on numpad
|
|
// 0x6D - VK_SUBTRACT '-' on numpad
|
|
// 0x6E - VK_DECIMAL '.' on numpad
|
|
// 0x6F - VK_DIVIDE '/' on numpad
|
|
// 0x6E - VK_DECIMAL '.'
|
|
// 0xBA - VK_OEM_1 ';:' for US
|
|
// 0xBB - VK_OEM_PLUS '+' any country
|
|
// 0xBC - VK_OEM_COMMA ',' any country
|
|
// 0xBD - VK_OEM_MINUS '-' any country
|
|
// 0xBE - VK_OEM_PERIOD '.' any country
|
|
// 0xBF - VK_OEM_2 '/?' for US
|
|
// 0xC0 - VK_OEM_3 '`~' for US
|
|
// 0xDB - VK_OEM_4 '[{' for US
|
|
// 0xDC - VK_OEM_5 '\|' for US
|
|
// 0xDD - VK_OEM_6 ']}' for US
|
|
// 0xDE - VK_OEM_7 ''"' for US
|
|
// 0xDF - VK_OEM_8
|
|
// 0xE1 - no name
|
|
// 0xE2 - VK_OEM_102 '\_' for JIS
|
|
// 0xE3 - no name
|
|
// 0xE4 - no name
|
|
|
|
static const int8_t xlat[256] =
|
|
{
|
|
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
|
|
//-----------------------------------------------------------------------
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 00
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 10
|
|
0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 20
|
|
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, -1, -1, -1, -1, -1, -1, // 30
|
|
-1, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, // 40
|
|
26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, -1, -1, -1, -1, -1, // 50
|
|
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, -1, 49, 50, 51, // 60
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 70
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 80
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 90
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // A0
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 52, 53, 54, 55, 56, 57, // B0
|
|
58, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // C0
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 59, 60, 61, 62, 63, // D0
|
|
-1, 64, 65, 66, 67, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // E0
|
|
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 // F0
|
|
};
|
|
|
|
return xlat[aVirtualKey];
|
|
}
|
|
|
|
int
|
|
KeyboardLayout::CompareDeadKeyEntries(const void* aArg1,
|
|
const void* aArg2,
|
|
void*)
|
|
{
|
|
const DeadKeyEntry* arg1 = static_cast<const DeadKeyEntry*>(aArg1);
|
|
const DeadKeyEntry* arg2 = static_cast<const DeadKeyEntry*>(aArg2);
|
|
|
|
return arg1->BaseChar - arg2->BaseChar;
|
|
}
|
|
|
|
const DeadKeyTable*
|
|
KeyboardLayout::AddDeadKeyTable(const DeadKeyEntry* aDeadKeyArray,
|
|
uint32_t aEntries)
|
|
{
|
|
DeadKeyTableListEntry* next = mDeadKeyTableListHead;
|
|
|
|
const size_t bytes = offsetof(DeadKeyTableListEntry, data) +
|
|
DeadKeyTable::SizeInBytes(aEntries);
|
|
uint8_t* p = new uint8_t[bytes];
|
|
|
|
mDeadKeyTableListHead = reinterpret_cast<DeadKeyTableListEntry*>(p);
|
|
mDeadKeyTableListHead->next = next;
|
|
|
|
DeadKeyTable* dkt =
|
|
reinterpret_cast<DeadKeyTable*>(mDeadKeyTableListHead->data);
|
|
|
|
dkt->Init(aDeadKeyArray, aEntries);
|
|
|
|
return dkt;
|
|
}
|
|
|
|
void
|
|
KeyboardLayout::ReleaseDeadKeyTables()
|
|
{
|
|
while (mDeadKeyTableListHead) {
|
|
uint8_t* p = reinterpret_cast<uint8_t*>(mDeadKeyTableListHead);
|
|
mDeadKeyTableListHead = mDeadKeyTableListHead->next;
|
|
|
|
delete [] p;
|
|
}
|
|
}
|
|
|
|
bool
|
|
KeyboardLayout::EnsureDeadKeyActive(bool aIsActive,
|
|
uint8_t aDeadKey,
|
|
const PBYTE aDeadKeyKbdState)
|
|
{
|
|
int32_t ret;
|
|
do {
|
|
PRUnichar dummyChars[5];
|
|
ret = ::ToUnicodeEx(aDeadKey, 0, (PBYTE)aDeadKeyKbdState,
|
|
(LPWSTR)dummyChars, ArrayLength(dummyChars), 0,
|
|
mKeyboardLayout);
|
|
// returned values:
|
|
// <0 - Dead key state is active. The keyboard driver will wait for next
|
|
// character.
|
|
// 1 - Previous pressed key was a valid base character that produced
|
|
// exactly one composite character.
|
|
// >1 - Previous pressed key does not produce any composite characters.
|
|
// Return dead-key character followed by base character(s).
|
|
} while ((ret < 0) != aIsActive);
|
|
|
|
return (ret < 0);
|
|
}
|
|
|
|
void
|
|
KeyboardLayout::DeactivateDeadKeyState()
|
|
{
|
|
if (mActiveDeadKey < 0) {
|
|
return;
|
|
}
|
|
|
|
BYTE kbdState[256];
|
|
memset(kbdState, 0, sizeof(kbdState));
|
|
|
|
VirtualKey::FillKbdState(kbdState, mDeadKeyShiftState);
|
|
|
|
EnsureDeadKeyActive(false, mActiveDeadKey, kbdState);
|
|
mActiveDeadKey = -1;
|
|
}
|
|
|
|
bool
|
|
KeyboardLayout::AddDeadKeyEntry(PRUnichar aBaseChar,
|
|
PRUnichar aCompositeChar,
|
|
DeadKeyEntry* aDeadKeyArray,
|
|
uint32_t aEntries)
|
|
{
|
|
for (uint32_t index = 0; index < aEntries; index++) {
|
|
if (aDeadKeyArray[index].BaseChar == aBaseChar) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
aDeadKeyArray[aEntries].BaseChar = aBaseChar;
|
|
aDeadKeyArray[aEntries].CompositeChar = aCompositeChar;
|
|
|
|
return true;
|
|
}
|
|
|
|
uint32_t
|
|
KeyboardLayout::GetDeadKeyCombinations(uint8_t aDeadKey,
|
|
const PBYTE aDeadKeyKbdState,
|
|
uint16_t aShiftStatesWithBaseChars,
|
|
DeadKeyEntry* aDeadKeyArray,
|
|
uint32_t aMaxEntries)
|
|
{
|
|
bool deadKeyActive = false;
|
|
uint32_t entries = 0;
|
|
BYTE kbdState[256];
|
|
memset(kbdState, 0, sizeof(kbdState));
|
|
|
|
for (uint32_t shiftState = 0; shiftState < 16; shiftState++) {
|
|
if (!(aShiftStatesWithBaseChars & (1 << shiftState))) {
|
|
continue;
|
|
}
|
|
|
|
VirtualKey::FillKbdState(kbdState, shiftState);
|
|
|
|
for (uint32_t virtualKey = 0; virtualKey < 256; virtualKey++) {
|
|
int32_t vki = GetKeyIndex(virtualKey);
|
|
// Dead-key can pair only with such key that produces exactly one base
|
|
// character.
|
|
if (vki >= 0 &&
|
|
mVirtualKeys[vki].GetNativeUniChars(shiftState).mLength == 1) {
|
|
// Ensure dead-key is in active state, when it swallows entered
|
|
// character and waits for the next pressed key.
|
|
if (!deadKeyActive) {
|
|
deadKeyActive = EnsureDeadKeyActive(true, aDeadKey,
|
|
aDeadKeyKbdState);
|
|
}
|
|
|
|
// Depending on the character the followed the dead-key, the keyboard
|
|
// driver can produce one composite character, or a dead-key character
|
|
// followed by a second character.
|
|
PRUnichar compositeChars[5];
|
|
int32_t ret =
|
|
::ToUnicodeEx(virtualKey, 0, kbdState, (LPWSTR)compositeChars,
|
|
ArrayLength(compositeChars), 0, mKeyboardLayout);
|
|
switch (ret) {
|
|
case 0:
|
|
// This key combination does not produce any characters. The
|
|
// dead-key is still in active state.
|
|
break;
|
|
case 1: {
|
|
// Exactly one composite character produced. Now, when dead-key
|
|
// is not active, repeat the last character one more time to
|
|
// determine the base character.
|
|
PRUnichar baseChars[5];
|
|
ret = ::ToUnicodeEx(virtualKey, 0, kbdState, (LPWSTR)baseChars,
|
|
ArrayLength(baseChars), 0, mKeyboardLayout);
|
|
NS_ASSERTION(ret == 1, "One base character expected");
|
|
if (ret == 1 && entries < aMaxEntries &&
|
|
AddDeadKeyEntry(baseChars[0], compositeChars[0],
|
|
aDeadKeyArray, entries)) {
|
|
entries++;
|
|
}
|
|
deadKeyActive = false;
|
|
break;
|
|
}
|
|
default:
|
|
// 1. Unexpected dead-key. Dead-key chaining is not supported.
|
|
// 2. More than one character generated. This is not a valid
|
|
// dead-key and base character combination.
|
|
deadKeyActive = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (deadKeyActive) {
|
|
deadKeyActive = EnsureDeadKeyActive(false, aDeadKey, aDeadKeyKbdState);
|
|
}
|
|
|
|
NS_QuickSort(aDeadKeyArray, entries, sizeof(DeadKeyEntry),
|
|
CompareDeadKeyEntries, nullptr);
|
|
return entries;
|
|
}
|
|
|
|
uint32_t
|
|
KeyboardLayout::ConvertNativeKeyCodeToDOMKeyCode(UINT aNativeKeyCode) const
|
|
{
|
|
// Alphabet or Numeric or Numpad or Function keys
|
|
if ((aNativeKeyCode >= 0x30 && aNativeKeyCode <= 0x39) ||
|
|
(aNativeKeyCode >= 0x41 && aNativeKeyCode <= 0x5A) ||
|
|
(aNativeKeyCode >= 0x60 && aNativeKeyCode <= 0x87)) {
|
|
return static_cast<uint32_t>(aNativeKeyCode);
|
|
}
|
|
switch (aNativeKeyCode) {
|
|
// Following keycodes are same as our DOM keycodes
|
|
case VK_CANCEL:
|
|
case VK_BACK:
|
|
case VK_TAB:
|
|
case VK_CLEAR:
|
|
case VK_RETURN:
|
|
case VK_SHIFT:
|
|
case VK_CONTROL:
|
|
case VK_MENU: // Alt
|
|
case VK_PAUSE:
|
|
case VK_CAPITAL: // CAPS LOCK
|
|
case VK_KANA: // same as VK_HANGUL
|
|
case VK_JUNJA:
|
|
case VK_FINAL:
|
|
case VK_HANJA: // same as VK_KANJI
|
|
case VK_ESCAPE:
|
|
case VK_CONVERT:
|
|
case VK_NONCONVERT:
|
|
case VK_ACCEPT:
|
|
case VK_MODECHANGE:
|
|
case VK_SPACE:
|
|
case VK_PRIOR: // PAGE UP
|
|
case VK_NEXT: // PAGE DOWN
|
|
case VK_END:
|
|
case VK_HOME:
|
|
case VK_LEFT:
|
|
case VK_UP:
|
|
case VK_RIGHT:
|
|
case VK_DOWN:
|
|
case VK_SELECT:
|
|
case VK_PRINT:
|
|
case VK_EXECUTE:
|
|
case VK_SNAPSHOT:
|
|
case VK_INSERT:
|
|
case VK_DELETE:
|
|
case VK_APPS: // Context Menu
|
|
case VK_SLEEP:
|
|
case VK_NUMLOCK:
|
|
case VK_SCROLL: // SCROLL LOCK
|
|
case VK_ATTN: // Attension key of IBM midrange computers, e.g., AS/400
|
|
case VK_CRSEL: // Cursor Selection
|
|
case VK_EXSEL: // Extend Selection
|
|
case VK_EREOF: // Erase EOF key of IBM 3270 keyboard layout
|
|
case VK_PLAY:
|
|
case VK_ZOOM:
|
|
case VK_PA1: // PA1 key of IBM 3270 keyboard layout
|
|
return uint32_t(aNativeKeyCode);
|
|
|
|
case VK_HELP:
|
|
return NS_VK_HELP;
|
|
|
|
// Windows key should be mapped to a Win keycode
|
|
// They should be able to be distinguished by DOM3 KeyboardEvent.location
|
|
case VK_LWIN:
|
|
case VK_RWIN:
|
|
return NS_VK_WIN;
|
|
|
|
case VK_VOLUME_MUTE:
|
|
return NS_VK_VOLUME_MUTE;
|
|
case VK_VOLUME_DOWN:
|
|
return NS_VK_VOLUME_DOWN;
|
|
case VK_VOLUME_UP:
|
|
return NS_VK_VOLUME_UP;
|
|
|
|
// Following keycodes are not defined in our DOM keycodes.
|
|
case VK_BROWSER_BACK:
|
|
case VK_BROWSER_FORWARD:
|
|
case VK_BROWSER_REFRESH:
|
|
case VK_BROWSER_STOP:
|
|
case VK_BROWSER_SEARCH:
|
|
case VK_BROWSER_FAVORITES:
|
|
case VK_BROWSER_HOME:
|
|
case VK_MEDIA_NEXT_TRACK:
|
|
case VK_MEDIA_STOP:
|
|
case VK_MEDIA_PLAY_PAUSE:
|
|
case VK_LAUNCH_MAIL:
|
|
case VK_LAUNCH_MEDIA_SELECT:
|
|
case VK_LAUNCH_APP1:
|
|
case VK_LAUNCH_APP2:
|
|
return 0;
|
|
|
|
// Following OEM specific virtual keycodes should pass through DOM keyCode
|
|
// for compatibility with the other browsers on Windows.
|
|
|
|
// Following OEM specific virtual keycodes are defined for Fujitsu/OASYS.
|
|
case VK_OEM_FJ_JISHO:
|
|
case VK_OEM_FJ_MASSHOU:
|
|
case VK_OEM_FJ_TOUROKU:
|
|
case VK_OEM_FJ_LOYA:
|
|
case VK_OEM_FJ_ROYA:
|
|
// Not sure what means "ICO".
|
|
case VK_ICO_HELP:
|
|
case VK_ICO_00:
|
|
case VK_ICO_CLEAR:
|
|
// Following OEM specific virtual keycodes are defined for Nokia/Ericsson.
|
|
case VK_OEM_RESET:
|
|
case VK_OEM_JUMP:
|
|
case VK_OEM_PA1:
|
|
case VK_OEM_PA2:
|
|
case VK_OEM_PA3:
|
|
case VK_OEM_WSCTRL:
|
|
case VK_OEM_CUSEL:
|
|
case VK_OEM_ATTN:
|
|
case VK_OEM_FINISH:
|
|
case VK_OEM_COPY:
|
|
case VK_OEM_AUTO:
|
|
case VK_OEM_ENLW:
|
|
case VK_OEM_BACKTAB:
|
|
// VK_OEM_CLEAR is defined as not OEM specific, but let's pass though
|
|
// DOM keyCode like other OEM specific virtual keycodes.
|
|
case VK_OEM_CLEAR:
|
|
return uint32_t(aNativeKeyCode);
|
|
|
|
// 0xE1 is an OEM specific virtual keycode. However, the value is already
|
|
// used in our DOM keyCode for AltGr on Linux. So, this virtual keycode
|
|
// cannot pass through DOM keyCode.
|
|
case 0xE1:
|
|
return 0;
|
|
|
|
// Following keycodes are OEM keys which are keycodes for non-alphabet and
|
|
// non-numeric keys, we should compute each keycode of them from unshifted
|
|
// character which is inputted by each key. But if the unshifted character
|
|
// is not an ASCII character but shifted character is an ASCII character,
|
|
// we should refer it.
|
|
case VK_OEM_1:
|
|
case VK_OEM_PLUS:
|
|
case VK_OEM_COMMA:
|
|
case VK_OEM_MINUS:
|
|
case VK_OEM_PERIOD:
|
|
case VK_OEM_2:
|
|
case VK_OEM_3:
|
|
case VK_OEM_4:
|
|
case VK_OEM_5:
|
|
case VK_OEM_6:
|
|
case VK_OEM_7:
|
|
case VK_OEM_8:
|
|
case VK_OEM_102:
|
|
{
|
|
NS_ASSERTION(IsPrintableCharKey(aNativeKeyCode),
|
|
"The key must be printable");
|
|
ModifierKeyState modKeyState(0);
|
|
UniCharsAndModifiers uniChars =
|
|
GetUniCharsAndModifiers(aNativeKeyCode, modKeyState);
|
|
if (uniChars.mLength != 1 ||
|
|
uniChars.mChars[0] < ' ' || uniChars.mChars[0] > 0x7F) {
|
|
modKeyState.Set(MODIFIER_SHIFT);
|
|
uniChars = GetUniCharsAndModifiers(aNativeKeyCode, modKeyState);
|
|
if (uniChars.mLength != 1 ||
|
|
uniChars.mChars[0] < ' ' || uniChars.mChars[0] > 0x7F) {
|
|
return 0;
|
|
}
|
|
}
|
|
return WidgetUtils::ComputeKeyCodeFromChar(uniChars.mChars[0]);
|
|
}
|
|
|
|
// VK_PROCESSKEY means IME already consumed the key event.
|
|
case VK_PROCESSKEY:
|
|
return 0;
|
|
// VK_PACKET is generated by SendInput() API, we don't need to
|
|
// care this message as key event.
|
|
case VK_PACKET:
|
|
return 0;
|
|
}
|
|
NS_WARNING("Unknown key code comes, please check latest MSDN document,"
|
|
" there may be some new keycodes we have not known.");
|
|
return 0;
|
|
}
|
|
|
|
KeyNameIndex
|
|
KeyboardLayout::ConvertNativeKeyCodeToKeyNameIndex(uint8_t aVirtualKey) const
|
|
{
|
|
switch (aVirtualKey) {
|
|
|
|
#define NS_NATIVE_KEY_TO_DOM_KEY_NAME_INDEX(aNativeKey, aKeyNameIndex) \
|
|
case aNativeKey: return aKeyNameIndex;
|
|
|
|
#include "NativeKeyToDOMKeyName.h"
|
|
|
|
#undef NS_NATIVE_KEY_TO_DOM_KEY_NAME_INDEX
|
|
|
|
default:
|
|
return IsPrintableCharKey(aVirtualKey) ? KEY_NAME_INDEX_PrintableKey :
|
|
KEY_NAME_INDEX_Unidentified;
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* mozilla::widget::DeadKeyTable
|
|
*****************************************************************************/
|
|
|
|
PRUnichar
|
|
DeadKeyTable::GetCompositeChar(PRUnichar aBaseChar) const
|
|
{
|
|
// Dead-key table is sorted by BaseChar in ascending order.
|
|
// Usually they are too small to use binary search.
|
|
|
|
for (uint32_t index = 0; index < mEntries; index++) {
|
|
if (mTable[index].BaseChar == aBaseChar) {
|
|
return mTable[index].CompositeChar;
|
|
}
|
|
if (mTable[index].BaseChar > aBaseChar) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|
|
|