widget/nsGUIEventIPC.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsGUIEventIPC_h__
   7 #define nsGUIEventIPC_h__
   8
   9 #include "ipc/EnumSerializer.h"
  10 #include "ipc/IPCMessageUtils.h"
  11 #include "mozilla/ContentCache.h"
  12 #include "mozilla/GfxMessageUtils.h"
  13 #include "mozilla/dom/Touch.h"
  14 #include "mozilla/ipc/IPDLParamTraits.h"  // for ReadIPDLParam and WriteIPDLParam
  15 #include "mozilla/ipc/URIUtils.h"         // for IPDLParamTraits<nsIURI*>
  16 #include "mozilla/layers/LayersMessageUtils.h"
  17 #include "mozilla/MiscEvents.h"
  18 #include "mozilla/MouseEvents.h"
  19 #include "mozilla/TextEvents.h"
  20 #include "mozilla/TouchEvents.h"
  21 #include "mozilla/WheelHandlingHelper.h"  // for WheelDeltaAdjustmentStrategy
  22 #include "mozilla/dom/Selection.h"
  23 #include "InputData.h"
  24
  25 namespace IPC {
  26
  27 template <>
  28 struct ParamTraits<mozilla::EventMessage>
  29     : public ContiguousEnumSerializer<
  30           mozilla::EventMessage, mozilla::EventMessage(0),
  31           mozilla::EventMessage::eEventMessage_MaxValue> {};
  32
  33 template <>
  34 struct ParamTraits<mozilla::BaseEventFlags> {
  35   using paramType = mozilla::BaseEventFlags;
  36
  37   static void Write(MessageWriter* aWriter, const paramType& aParam) {
  38     aWriter->WriteBytes(&aParam, sizeof(aParam));
  39   }
  40
  41   static bool Read(MessageReader* aReader, paramType* aResult) {
  42     return aReader->ReadBytesInto(aResult, sizeof(*aResult));
  43   }
  44 };
  45
  46 template <>
  47 struct ParamTraits<mozilla::WidgetEvent> {
  48   using paramType = mozilla::WidgetEvent;
  49
  50   static void Write(MessageWriter* aWriter, const paramType& aParam) {
  51     // Mark the event as posted to another process.
  52     const_cast<mozilla::WidgetEvent&>(aParam).MarkAsPostedToRemoteProcess();
  53
  54     WriteParam(aWriter, static_cast<mozilla::EventClassIDType>(aParam.mClass));
  55     WriteParam(aWriter, aParam.mMessage);
  56     WriteParam(aWriter, aParam.mRefPoint);
  57     WriteParam(aWriter, aParam.mFocusSequenceNumber);
  58     WriteParam(aWriter, aParam.mTimeStamp);
  59     WriteParam(aWriter, aParam.mFlags);
  60     WriteParam(aWriter, aParam.mLayersId);
  61   }
  62
  63   static bool Read(MessageReader* aReader, paramType* aResult) {
  64     mozilla::EventClassIDType eventClassID = 0;
  65     bool ret = ReadParam(aReader, &eventClassID) &&
  66                ReadParam(aReader, &aResult->mMessage) &&
  67                ReadParam(aReader, &aResult->mRefPoint) &&
  68                ReadParam(aReader, &aResult->mFocusSequenceNumber) &&
  69                ReadParam(aReader, &aResult->mTimeStamp) &&
  70                ReadParam(aReader, &aResult->mFlags) &&
  71                ReadParam(aReader, &aResult->mLayersId);
  72     aResult->mClass = static_cast<mozilla::EventClassID>(eventClassID);
  73     if (ret) {
  74       // Reset cross process dispatching state here because the event has not
  75       // been dispatched to different process from current process.
  76       aResult->ResetCrossProcessDispatchingState();
  77       // Mark the event comes from another process.
  78       aResult->MarkAsComingFromAnotherProcess();
  79     }
  80     return ret;
  81   }
  82 };
  83
  84 template <>
  85 struct ParamTraits<mozilla::WidgetGUIEvent> {
  86   using paramType = mozilla::WidgetGUIEvent;
  87
  88   static void Write(MessageWriter* aWriter, const paramType& aParam) {
  89     WriteParam(aWriter, static_cast<const mozilla::WidgetEvent&>(aParam));
  90   }
  91
  92   static bool Read(MessageReader* aReader, paramType* aResult) {
  93     return ReadParam(aReader, static_cast<mozilla::WidgetEvent*>(aResult));
  94   }
  95 };
  96
  97 template <>
  98 struct ParamTraits<mozilla::WidgetInputEvent> {
  99   using paramType = mozilla::WidgetInputEvent;
 100
 101   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 102     WriteParam(aWriter, static_cast<const mozilla::WidgetGUIEvent&>(aParam));
 103     WriteParam(aWriter, aParam.mModifiers);
 104   }
 105
 106   static bool Read(MessageReader* aReader, paramType* aResult) {
 107     return ReadParam(aReader, static_cast<mozilla::WidgetGUIEvent*>(aResult)) &&
 108            ReadParam(aReader, &aResult->mModifiers);
 109   }
 110 };
 111
 112 template <>
 113 struct ParamTraits<mozilla::WidgetMouseEventBase> {
 114   using paramType = mozilla::WidgetMouseEventBase;
 115
 116   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 117     WriteParam(aWriter, static_cast<const mozilla::WidgetInputEvent&>(aParam));
 118     WriteParam(aWriter, aParam.mButton);
 119     WriteParam(aWriter, aParam.mButtons);
 120     WriteParam(aWriter, aParam.mPressure);
 121     WriteParam(aWriter, aParam.mInputSource);
 122   }
 123
 124   static bool Read(MessageReader* aReader, paramType* aResult) {
 125     return ReadParam(aReader,
 126                      static_cast<mozilla::WidgetInputEvent*>(aResult)) &&
 127            ReadParam(aReader, &aResult->mButton) &&
 128            ReadParam(aReader, &aResult->mButtons) &&
 129            ReadParam(aReader, &aResult->mPressure) &&
 130            ReadParam(aReader, &aResult->mInputSource);
 131   }
 132 };
 133
 134 template <>
 135 struct ParamTraits<mozilla::WidgetWheelEvent> {
 136   using paramType = mozilla::WidgetWheelEvent;
 137
 138   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 139     WriteParam(aWriter,
 140                static_cast<const mozilla::WidgetMouseEventBase&>(aParam));
 141     WriteParam(aWriter, aParam.mDeltaX);
 142     WriteParam(aWriter, aParam.mDeltaY);
 143     WriteParam(aWriter, aParam.mDeltaZ);
 144     WriteParam(aWriter, aParam.mDeltaMode);
 145     WriteParam(aWriter, aParam.mWheelTicksX);
 146     WriteParam(aWriter, aParam.mWheelTicksY);
 147     WriteParam(aWriter, aParam.mCustomizedByUserPrefs);
 148     WriteParam(aWriter, aParam.mMayHaveMomentum);
 149     WriteParam(aWriter, aParam.mIsMomentum);
 150     WriteParam(aWriter, aParam.mIsNoLineOrPageDelta);
 151     WriteParam(aWriter, aParam.mLineOrPageDeltaX);
 152     WriteParam(aWriter, aParam.mLineOrPageDeltaY);
 153     WriteParam(aWriter, static_cast<uint8_t>(aParam.mScrollType));
 154     WriteParam(aWriter, aParam.mOverflowDeltaX);
 155     WriteParam(aWriter, aParam.mOverflowDeltaY);
 156     WriteParam(aWriter, aParam.mViewPortIsOverscrolled);
 157     WriteParam(aWriter, aParam.mCanTriggerSwipe);
 158     WriteParam(aWriter, aParam.mAllowToOverrideSystemScrollSpeed);
 159     WriteParam(aWriter, aParam.mDeltaValuesHorizontalizedForDefaultHandler);
 160   }
 161
 162   static bool Read(MessageReader* aReader, paramType* aResult) {
 163     uint8_t scrollType = 0;
 164     bool rv = ReadParam(aReader,
 165                         static_cast<mozilla::WidgetMouseEventBase*>(aResult)) &&
 166               ReadParam(aReader, &aResult->mDeltaX) &&
 167               ReadParam(aReader, &aResult->mDeltaY) &&
 168               ReadParam(aReader, &aResult->mDeltaZ) &&
 169               ReadParam(aReader, &aResult->mDeltaMode) &&
 170               ReadParam(aReader, &aResult->mWheelTicksX) &&
 171               ReadParam(aReader, &aResult->mWheelTicksY) &&
 172               ReadParam(aReader, &aResult->mCustomizedByUserPrefs) &&
 173               ReadParam(aReader, &aResult->mMayHaveMomentum) &&
 174               ReadParam(aReader, &aResult->mIsMomentum) &&
 175               ReadParam(aReader, &aResult->mIsNoLineOrPageDelta) &&
 176               ReadParam(aReader, &aResult->mLineOrPageDeltaX) &&
 177               ReadParam(aReader, &aResult->mLineOrPageDeltaY) &&
 178               ReadParam(aReader, &scrollType) &&
 179               ReadParam(aReader, &aResult->mOverflowDeltaX) &&
 180               ReadParam(aReader, &aResult->mOverflowDeltaY) &&
 181               ReadParam(aReader, &aResult->mViewPortIsOverscrolled) &&
 182               ReadParam(aReader, &aResult->mCanTriggerSwipe) &&
 183               ReadParam(aReader, &aResult->mAllowToOverrideSystemScrollSpeed) &&
 184               ReadParam(aReader,
 185                         &aResult->mDeltaValuesHorizontalizedForDefaultHandler);
 186     aResult->mScrollType =
 187         static_cast<mozilla::WidgetWheelEvent::ScrollType>(scrollType);
 188     return rv;
 189   }
 190 };
 191
 192 template <>
 193 struct ParamTraits<mozilla::WidgetPointerHelper> {
 194   using paramType = mozilla::WidgetPointerHelper;
 195
 196   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 197     WriteParam(aWriter, aParam.pointerId);
 198     WriteParam(aWriter, aParam.tiltX);
 199     WriteParam(aWriter, aParam.tiltY);
 200     WriteParam(aWriter, aParam.twist);
 201     WriteParam(aWriter, aParam.tangentialPressure);
 202     // We don't serialize convertToPointer since it's temporarily variable and
 203     // should be reset to default.
 204   }
 205
 206   static bool Read(MessageReader* aReader, paramType* aResult) {
 207     bool rv;
 208     rv = ReadParam(aReader, &aResult->pointerId) &&
 209          ReadParam(aReader, &aResult->tiltX) &&
 210          ReadParam(aReader, &aResult->tiltY) &&
 211          ReadParam(aReader, &aResult->twist) &&
 212          ReadParam(aReader, &aResult->tangentialPressure);
 213     return rv;
 214   }
 215 };
 216
 217 template <>
 218 struct ParamTraits<mozilla::WidgetMouseEvent> {
 219   using paramType = mozilla::WidgetMouseEvent;
 220
 221   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 222     WriteParam(aWriter,
 223                static_cast<const mozilla::WidgetMouseEventBase&>(aParam));
 224     WriteParam(aWriter,
 225                static_cast<const mozilla::WidgetPointerHelper&>(aParam));
 226     WriteParam(aWriter, aParam.mIgnoreRootScrollFrame);
 227     WriteParam(aWriter, aParam.mClickEventPrevented);
 228     WriteParam(aWriter, static_cast<paramType::ReasonType>(aParam.mReason));
 229     WriteParam(aWriter, static_cast<paramType::ContextMenuTriggerType>(
 230                             aParam.mContextMenuTrigger));
 231     WriteParam(aWriter, aParam.mExitFrom.isSome());
 232     if (aParam.mExitFrom.isSome()) {
 233       WriteParam(aWriter, static_cast<paramType::ExitFromType>(
 234                               aParam.mExitFrom.value()));
 235     }
 236     WriteParam(aWriter, aParam.mClickCount);
 237   }
 238
 239   static bool Read(MessageReader* aReader, paramType* aResult) {
 240     bool rv;
 241     paramType::ReasonType reason = 0;
 242     paramType::ContextMenuTriggerType contextMenuTrigger = 0;
 243     bool hasExitFrom = false;
 244     rv = ReadParam(aReader,
 245                    static_cast<mozilla::WidgetMouseEventBase*>(aResult)) &&
 246          ReadParam(aReader,
 247                    static_cast<mozilla::WidgetPointerHelper*>(aResult)) &&
 248          ReadParam(aReader, &aResult->mIgnoreRootScrollFrame) &&
 249          ReadParam(aReader, &aResult->mClickEventPrevented) &&
 250          ReadParam(aReader, &reason) && ReadParam(aReader, &contextMenuTrigger);
 251     aResult->mReason = static_cast<paramType::Reason>(reason);
 252     aResult->mContextMenuTrigger =
 253         static_cast<paramType::ContextMenuTrigger>(contextMenuTrigger);
 254     rv = rv && ReadParam(aReader, &hasExitFrom);
 255     if (hasExitFrom) {
 256       paramType::ExitFromType exitFrom = 0;
 257       rv = rv && ReadParam(aReader, &exitFrom);
 258       aResult->mExitFrom = Some(static_cast<paramType::ExitFrom>(exitFrom));
 259     }
 260     rv = rv && ReadParam(aReader, &aResult->mClickCount);
 261     return rv;
 262   }
 263 };
 264
 265 template <>
 266 struct ParamTraits<mozilla::WidgetDragEvent> {
 267   using paramType = mozilla::WidgetDragEvent;
 268
 269   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 270     WriteParam(aWriter, static_cast<const mozilla::WidgetMouseEvent&>(aParam));
 271     WriteParam(aWriter, aParam.mUserCancelled);
 272     WriteParam(aWriter, aParam.mDefaultPreventedOnContent);
 273   }
 274
 275   static bool Read(MessageReader* aReader, paramType* aResult) {
 276     bool rv =
 277         ReadParam(aReader, static_cast<mozilla::WidgetMouseEvent*>(aResult)) &&
 278         ReadParam(aReader, &aResult->mUserCancelled) &&
 279         ReadParam(aReader, &aResult->mDefaultPreventedOnContent);
 280     return rv;
 281   }
 282 };
 283
 284 template <>
 285 struct ParamTraits<mozilla::WidgetPointerEvent> {
 286   using paramType = mozilla::WidgetPointerEvent;
 287
 288   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 289     WriteParam(aWriter, static_cast<const mozilla::WidgetMouseEvent&>(aParam));
 290     WriteParam(aWriter, aParam.mWidth);
 291     WriteParam(aWriter, aParam.mHeight);
 292     WriteParam(aWriter, aParam.mIsPrimary);
 293   }
 294
 295   static bool Read(MessageReader* aReader, paramType* aResult) {
 296     bool rv =
 297         ReadParam(aReader, static_cast<mozilla::WidgetMouseEvent*>(aResult)) &&
 298         ReadParam(aReader, &aResult->mWidth) &&
 299         ReadParam(aReader, &aResult->mHeight) &&
 300         ReadParam(aReader, &aResult->mIsPrimary);
 301     return rv;
 302   }
 303 };
 304
 305 template <>
 306 struct ParamTraits<mozilla::WidgetTouchEvent> {
 307   using paramType = mozilla::WidgetTouchEvent;
 308
 309   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 310     WriteParam(aWriter, static_cast<const mozilla::WidgetInputEvent&>(aParam));
 311     WriteParam(aWriter, aParam.mInputSource);
 312     WriteParam(aWriter, aParam.mButton);
 313     WriteParam(aWriter, aParam.mButtons);
 314     // Sigh, Touch bites us again!  We want to be able to do
 315     //   WriteParam(aWriter, aParam.mTouches);
 316     const paramType::TouchArray& touches = aParam.mTouches;
 317     WriteParam(aWriter, touches.Length());
 318     for (uint32_t i = 0; i < touches.Length(); ++i) {
 319       mozilla::dom::Touch* touch = touches[i];
 320       WriteParam(aWriter, touch->mIdentifier);
 321       WriteParam(aWriter, touch->mRefPoint);
 322       WriteParam(aWriter, touch->mRadius);
 323       WriteParam(aWriter, touch->mRotationAngle);
 324       WriteParam(aWriter, touch->mForce);
 325       WriteParam(aWriter, touch->tiltX);
 326       WriteParam(aWriter, touch->tiltY);
 327       WriteParam(aWriter, touch->twist);
 328     }
 329   }
 330
 331   static bool Read(MessageReader* aReader, paramType* aResult) {
 332     paramType::TouchArray::size_type numTouches;
 333     if (!ReadParam(aReader, static_cast<mozilla::WidgetInputEvent*>(aResult)) ||
 334         !ReadParam(aReader, &aResult->mInputSource) ||
 335         !ReadParam(aReader, &aResult->mButton) ||
 336         !ReadParam(aReader, &aResult->mButtons) ||
 337         !ReadParam(aReader, &numTouches)) {
 338       return false;
 339     }
 340     for (uint32_t i = 0; i < numTouches; ++i) {
 341       int32_t identifier;
 342       mozilla::LayoutDeviceIntPoint refPoint;
 343       mozilla::LayoutDeviceIntPoint radius;
 344       float rotationAngle;
 345       float force;
 346       uint32_t tiltX;
 347       uint32_t tiltY;
 348       uint32_t twist;
 349       if (!ReadParam(aReader, &identifier) || !ReadParam(aReader, &refPoint) ||
 350           !ReadParam(aReader, &radius) || !ReadParam(aReader, &rotationAngle) ||
 351           !ReadParam(aReader, &force) || !ReadParam(aReader, &tiltX) ||
 352           !ReadParam(aReader, &tiltY) || !ReadParam(aReader, &twist)) {
 353         return false;
 354       }
 355       auto* touch = new mozilla::dom::Touch(identifier, refPoint, radius,
 356                                             rotationAngle, force);
 357       touch->tiltX = tiltX;
 358       touch->tiltY = tiltY;
 359       touch->twist = twist;
 360       aResult->mTouches.AppendElement(touch);
 361     }
 362     return true;
 363   }
 364 };
 365
 366 template <>
 367 struct ParamTraits<mozilla::AlternativeCharCode> {
 368   using paramType = mozilla::AlternativeCharCode;
 369
 370   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 371     WriteParam(aWriter, aParam.mUnshiftedCharCode);
 372     WriteParam(aWriter, aParam.mShiftedCharCode);
 373   }
 374
 375   static bool Read(MessageReader* aReader, paramType* aResult) {
 376     return ReadParam(aReader, &aResult->mUnshiftedCharCode) &&
 377            ReadParam(aReader, &aResult->mShiftedCharCode);
 378   }
 379 };
 380
 381 template <>
 382 struct ParamTraits<mozilla::ShortcutKeyCandidate::ShiftState>
 383     : public ContiguousEnumSerializerInclusive<
 384           mozilla::ShortcutKeyCandidate::ShiftState,
 385           mozilla::ShortcutKeyCandidate::ShiftState::Ignorable,
 386           mozilla::ShortcutKeyCandidate::ShiftState::MatchExactly> {};
 387
 388 template <>
 389 struct ParamTraits<mozilla::ShortcutKeyCandidate::SkipIfEarlierHandlerDisabled>
 390     : public ContiguousEnumSerializerInclusive<
 391           mozilla::ShortcutKeyCandidate::SkipIfEarlierHandlerDisabled,
 392           mozilla::ShortcutKeyCandidate::SkipIfEarlierHandlerDisabled::No,
 393           mozilla::ShortcutKeyCandidate::SkipIfEarlierHandlerDisabled::Yes> {};
 394
 395 template <>
 396 struct ParamTraits<mozilla::ShortcutKeyCandidate> {
 397   using paramType = mozilla::ShortcutKeyCandidate;
 398
 399   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 400     WriteParam(aWriter, aParam.mCharCode);
 401     WriteParam(aWriter, aParam.mShiftState);
 402     WriteParam(aWriter, aParam.mSkipIfEarlierHandlerDisabled);
 403   }
 404
 405   static bool Read(MessageReader* aReader, paramType* aResult) {
 406     return ReadParam(aReader, &aResult->mCharCode) &&
 407            ReadParam(aReader, &aResult->mShiftState) &&
 408            ReadParam(aReader, &aResult->mSkipIfEarlierHandlerDisabled);
 409   }
 410 };
 411
 412 template <>
 413 struct ParamTraits<mozilla::WidgetKeyboardEvent> {
 414   using paramType = mozilla::WidgetKeyboardEvent;
 415
 416   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 417     WriteParam(aWriter, static_cast<const mozilla::WidgetInputEvent&>(aParam));
 418     WriteParam(aWriter,
 419                static_cast<mozilla::KeyNameIndexType>(aParam.mKeyNameIndex));
 420     WriteParam(aWriter,
 421                static_cast<mozilla::CodeNameIndexType>(aParam.mCodeNameIndex));
 422     WriteParam(aWriter, aParam.mKeyValue);
 423     WriteParam(aWriter, aParam.mCodeValue);
 424     WriteParam(aWriter, aParam.mKeyCode);
 425     WriteParam(aWriter, aParam.mCharCode);
 426     WriteParam(aWriter, aParam.mPseudoCharCode);
 427     WriteParam(aWriter, aParam.mAlternativeCharCodes);
 428     WriteParam(aWriter, aParam.mIsRepeat);
 429     WriteParam(aWriter, aParam.mLocation);
 430     WriteParam(aWriter, aParam.mUniqueId);
 431     WriteParam(aWriter, aParam.mIsSynthesizedByTIP);
 432     WriteParam(aWriter, aParam.mMaybeSkippableInRemoteProcess);
 433
 434     // An OS-specific native event might be attached in |mNativeKeyEvent|,  but
 435     // that cannot be copied across process boundaries.
 436
 437     WriteParam(aWriter, aParam.mEditCommandsForSingleLineEditor);
 438     WriteParam(aWriter, aParam.mEditCommandsForMultiLineEditor);
 439     WriteParam(aWriter, aParam.mEditCommandsForRichTextEditor);
 440     WriteParam(aWriter, aParam.mEditCommandsForSingleLineEditorInitialized);
 441     WriteParam(aWriter, aParam.mEditCommandsForMultiLineEditorInitialized);
 442     WriteParam(aWriter, aParam.mEditCommandsForRichTextEditorInitialized);
 443   }
 444
 445   static bool Read(MessageReader* aReader, paramType* aResult) {
 446     mozilla::KeyNameIndexType keyNameIndex = 0;
 447     mozilla::CodeNameIndexType codeNameIndex = 0;
 448     if (ReadParam(aReader, static_cast<mozilla::WidgetInputEvent*>(aResult)) &&
 449         ReadParam(aReader, &keyNameIndex) &&
 450         ReadParam(aReader, &codeNameIndex) &&
 451         ReadParam(aReader, &aResult->mKeyValue) &&
 452         ReadParam(aReader, &aResult->mCodeValue) &&
 453         ReadParam(aReader, &aResult->mKeyCode) &&
 454         ReadParam(aReader, &aResult->mCharCode) &&
 455         ReadParam(aReader, &aResult->mPseudoCharCode) &&
 456         ReadParam(aReader, &aResult->mAlternativeCharCodes) &&
 457         ReadParam(aReader, &aResult->mIsRepeat) &&
 458         ReadParam(aReader, &aResult->mLocation) &&
 459         ReadParam(aReader, &aResult->mUniqueId) &&
 460         ReadParam(aReader, &aResult->mIsSynthesizedByTIP) &&
 461         ReadParam(aReader, &aResult->mMaybeSkippableInRemoteProcess) &&
 462         ReadParam(aReader, &aResult->mEditCommandsForSingleLineEditor) &&
 463         ReadParam(aReader, &aResult->mEditCommandsForMultiLineEditor) &&
 464         ReadParam(aReader, &aResult->mEditCommandsForRichTextEditor) &&
 465         ReadParam(aReader,
 466                   &aResult->mEditCommandsForSingleLineEditorInitialized) &&
 467         ReadParam(aReader,
 468                   &aResult->mEditCommandsForMultiLineEditorInitialized) &&
 469         ReadParam(aReader,
 470                   &aResult->mEditCommandsForRichTextEditorInitialized)) {
 471       aResult->mKeyNameIndex = static_cast<mozilla::KeyNameIndex>(keyNameIndex);
 472       aResult->mCodeNameIndex =
 473           static_cast<mozilla::CodeNameIndex>(codeNameIndex);
 474       aResult->mNativeKeyEvent = nullptr;
 475       return true;
 476     }
 477     return false;
 478   }
 479 };
 480
 481 template <>
 482 struct ParamTraits<mozilla::TextRangeStyle> {
 483   using paramType = mozilla::TextRangeStyle;
 484
 485   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 486     WriteParam(aWriter, aParam.mDefinedStyles);
 487     WriteParam(aWriter, static_cast<mozilla::TextRangeStyle::LineStyleType>(
 488                             aParam.mLineStyle));
 489     WriteParam(aWriter, aParam.mIsBoldLine);
 490     WriteParam(aWriter, aParam.mForegroundColor);
 491     WriteParam(aWriter, aParam.mBackgroundColor);
 492     WriteParam(aWriter, aParam.mUnderlineColor);
 493   }
 494
 495   static bool Read(MessageReader* aReader, paramType* aResult) {
 496     mozilla::TextRangeStyle::LineStyleType lineStyle;
 497     if (!ReadParam(aReader, &aResult->mDefinedStyles) ||
 498         !ReadParam(aReader, &lineStyle) ||
 499         !ReadParam(aReader, &aResult->mIsBoldLine) ||
 500         !ReadParam(aReader, &aResult->mForegroundColor) ||
 501         !ReadParam(aReader, &aResult->mBackgroundColor) ||
 502         !ReadParam(aReader, &aResult->mUnderlineColor)) {
 503       return false;
 504     }
 505     aResult->mLineStyle = mozilla::TextRangeStyle::ToLineStyle(lineStyle);
 506     return true;
 507   }
 508 };
 509
 510 template <>
 511 struct ParamTraits<mozilla::TextRange> {
 512   using paramType = mozilla::TextRange;
 513
 514   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 515     WriteParam(aWriter, aParam.mStartOffset);
 516     WriteParam(aWriter, aParam.mEndOffset);
 517     WriteParam(aWriter, mozilla::ToRawTextRangeType(aParam.mRangeType));
 518     WriteParam(aWriter, aParam.mRangeStyle);
 519   }
 520
 521   static bool Read(MessageReader* aReader, paramType* aResult) {
 522     mozilla::RawTextRangeType rawTextRangeType;
 523     if (ReadParam(aReader, &aResult->mStartOffset) &&
 524         ReadParam(aReader, &aResult->mEndOffset) &&
 525         ReadParam(aReader, &rawTextRangeType) &&
 526         ReadParam(aReader, &aResult->mRangeStyle)) {
 527       aResult->mRangeType = mozilla::ToTextRangeType(rawTextRangeType);
 528       return true;
 529     }
 530     return false;
 531   }
 532 };
 533
 534 template <>
 535 struct ParamTraits<mozilla::TextRangeArray> {
 536   using paramType = mozilla::TextRangeArray;
 537
 538   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 539     WriteParam(aWriter, aParam.Length());
 540     for (uint32_t index = 0; index < aParam.Length(); index++) {
 541       WriteParam(aWriter, aParam[index]);
 542     }
 543   }
 544
 545   static bool Read(MessageReader* aReader, paramType* aResult) {
 546     paramType::size_type length;
 547     if (!ReadParam(aReader, &length)) {
 548       return false;
 549     }
 550     for (uint32_t index = 0; index < length; index++) {
 551       mozilla::TextRange textRange;
 552       if (!ReadParam(aReader, &textRange)) {
 553         aResult->Clear();
 554         return false;
 555       }
 556       aResult->AppendElement(textRange);
 557     }
 558     return true;
 559   }
 560 };
 561
 562 template <>
 563 struct ParamTraits<mozilla::WidgetCompositionEvent> {
 564   using paramType = mozilla::WidgetCompositionEvent;
 565
 566   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 567     WriteParam(aWriter, static_cast<const mozilla::WidgetGUIEvent&>(aParam));
 568     WriteParam(aWriter, aParam.mData);
 569     WriteParam(aWriter, aParam.mNativeIMEContext);
 570     WriteParam(aWriter, aParam.mCompositionId);
 571     bool hasRanges = !!aParam.mRanges;
 572     WriteParam(aWriter, hasRanges);
 573     if (hasRanges) {
 574       WriteParam(aWriter, *aParam.mRanges.get());
 575     }
 576   }
 577
 578   static bool Read(MessageReader* aReader, paramType* aResult) {
 579     bool hasRanges;
 580     if (!ReadParam(aReader, static_cast<mozilla::WidgetGUIEvent*>(aResult)) ||
 581         !ReadParam(aReader, &aResult->mData) ||
 582         !ReadParam(aReader, &aResult->mNativeIMEContext) ||
 583         !ReadParam(aReader, &aResult->mCompositionId) ||
 584         !ReadParam(aReader, &hasRanges)) {
 585       return false;
 586     }
 587
 588     if (!hasRanges) {
 589       aResult->mRanges = nullptr;
 590     } else {
 591       aResult->mRanges = new mozilla::TextRangeArray();
 592       if (!ReadParam(aReader, aResult->mRanges.get())) {
 593         return false;
 594       }
 595     }
 596     return true;
 597   }
 598 };
 599
 600 template <>
 601 struct ParamTraits<mozilla::FontRange> {
 602   using paramType = mozilla::FontRange;
 603
 604   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 605     WriteParam(aWriter, aParam.mStartOffset);
 606     WriteParam(aWriter, aParam.mFontName);
 607     WriteParam(aWriter, aParam.mFontSize);
 608   }
 609
 610   static bool Read(MessageReader* aReader, paramType* aResult) {
 611     return ReadParam(aReader, &aResult->mStartOffset) &&
 612            ReadParam(aReader, &aResult->mFontName) &&
 613            ReadParam(aReader, &aResult->mFontSize);
 614   }
 615 };
 616
 617 template <>
 618 struct ParamTraits<mozilla::WidgetSelectionEvent> {
 619   using paramType = mozilla::WidgetSelectionEvent;
 620
 621   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 622     WriteParam(aWriter, static_cast<const mozilla::WidgetGUIEvent&>(aParam));
 623     WriteParam(aWriter, aParam.mOffset);
 624     WriteParam(aWriter, aParam.mLength);
 625     WriteParam(aWriter, aParam.mReversed);
 626     WriteParam(aWriter, aParam.mExpandToClusterBoundary);
 627     WriteParam(aWriter, aParam.mSucceeded);
 628     WriteParam(aWriter, aParam.mUseNativeLineBreak);
 629   }
 630
 631   static bool Read(MessageReader* aReader, paramType* aResult) {
 632     return ReadParam(aReader, static_cast<mozilla::WidgetGUIEvent*>(aResult)) &&
 633            ReadParam(aReader, &aResult->mOffset) &&
 634            ReadParam(aReader, &aResult->mLength) &&
 635            ReadParam(aReader, &aResult->mReversed) &&
 636            ReadParam(aReader, &aResult->mExpandToClusterBoundary) &&
 637            ReadParam(aReader, &aResult->mSucceeded) &&
 638            ReadParam(aReader, &aResult->mUseNativeLineBreak);
 639   }
 640 };
 641
 642 template <>
 643 struct ParamTraits<mozilla::widget::IMENotificationRequests> {
 644   using paramType = mozilla::widget::IMENotificationRequests;
 645
 646   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 647     WriteParam(aWriter, aParam.mWantUpdates);
 648   }
 649
 650   static bool Read(MessageReader* aReader, paramType* aResult) {
 651     return ReadParam(aReader, &aResult->mWantUpdates);
 652   }
 653 };
 654
 655 template <>
 656 struct ParamTraits<mozilla::widget::NativeIMEContext> {
 657   using paramType = mozilla::widget::NativeIMEContext;
 658
 659   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 660     WriteParam(aWriter, aParam.mRawNativeIMEContext);
 661     WriteParam(aWriter, aParam.mOriginProcessID);
 662   }
 663
 664   static bool Read(MessageReader* aReader, paramType* aResult) {
 665     return ReadParam(aReader, &aResult->mRawNativeIMEContext) &&
 666            ReadParam(aReader, &aResult->mOriginProcessID);
 667   }
 668 };
 669
 670 template <>
 671 struct ParamTraits<mozilla::widget::IMENotification::SelectionChangeDataBase> {
 672   using paramType = mozilla::widget::IMENotification::SelectionChangeDataBase;
 673
 674   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 675     MOZ_RELEASE_ASSERT(aParam.mString);
 676     WriteParam(aWriter, aParam.mOffset);
 677     WriteParam(aWriter, *aParam.mString);
 678     WriteParam(aWriter, aParam.mWritingModeBits);
 679     WriteParam(aWriter, aParam.mIsInitialized);
 680     WriteParam(aWriter, aParam.mHasRange);
 681     WriteParam(aWriter, aParam.mReversed);
 682     WriteParam(aWriter, aParam.mCausedByComposition);
 683     WriteParam(aWriter, aParam.mCausedBySelectionEvent);
 684     WriteParam(aWriter, aParam.mOccurredDuringComposition);
 685   }
 686
 687   static bool Read(MessageReader* aReader, paramType* aResult) {
 688     aResult->mString = new nsString();
 689     return ReadParam(aReader, &aResult->mOffset) &&
 690            ReadParam(aReader, aResult->mString) &&
 691            ReadParam(aReader, &aResult->mWritingModeBits) &&
 692            ReadParam(aReader, &aResult->mIsInitialized) &&
 693            ReadParam(aReader, &aResult->mHasRange) &&
 694            ReadParam(aReader, &aResult->mReversed) &&
 695            ReadParam(aReader, &aResult->mCausedByComposition) &&
 696            ReadParam(aReader, &aResult->mCausedBySelectionEvent) &&
 697            ReadParam(aReader, &aResult->mOccurredDuringComposition);
 698   }
 699 };
 700
 701 template <>
 702 struct ParamTraits<mozilla::widget::IMENotification::TextChangeDataBase> {
 703   using paramType = mozilla::widget::IMENotification::TextChangeDataBase;
 704
 705   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 706     WriteParam(aWriter, aParam.mStartOffset);
 707     WriteParam(aWriter, aParam.mRemovedEndOffset);
 708     WriteParam(aWriter, aParam.mAddedEndOffset);
 709     WriteParam(aWriter, aParam.mCausedOnlyByComposition);
 710     WriteParam(aWriter, aParam.mIncludingChangesDuringComposition);
 711     WriteParam(aWriter, aParam.mIncludingChangesWithoutComposition);
 712   }
 713
 714   static bool Read(MessageReader* aReader, paramType* aResult) {
 715     return ReadParam(aReader, &aResult->mStartOffset) &&
 716            ReadParam(aReader, &aResult->mRemovedEndOffset) &&
 717            ReadParam(aReader, &aResult->mAddedEndOffset) &&
 718            ReadParam(aReader, &aResult->mCausedOnlyByComposition) &&
 719            ReadParam(aReader, &aResult->mIncludingChangesDuringComposition) &&
 720            ReadParam(aReader, &aResult->mIncludingChangesWithoutComposition);
 721   }
 722 };
 723
 724 template <>
 725 struct ParamTraits<mozilla::widget::IMENotification::MouseButtonEventData> {
 726   using paramType = mozilla::widget::IMENotification::MouseButtonEventData;
 727
 728   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 729     WriteParam(aWriter, aParam.mEventMessage);
 730     WriteParam(aWriter, aParam.mOffset);
 731     WriteParam(aWriter, aParam.mCursorPos);
 732     WriteParam(aWriter, aParam.mCharRect);
 733     WriteParam(aWriter, aParam.mButton);
 734     WriteParam(aWriter, aParam.mButtons);
 735     WriteParam(aWriter, aParam.mModifiers);
 736   }
 737
 738   static bool Read(MessageReader* aReader, paramType* aResult) {
 739     return ReadParam(aReader, &aResult->mEventMessage) &&
 740            ReadParam(aReader, &aResult->mOffset) &&
 741            ReadParam(aReader, &aResult->mCursorPos) &&
 742            ReadParam(aReader, &aResult->mCharRect) &&
 743            ReadParam(aReader, &aResult->mButton) &&
 744            ReadParam(aReader, &aResult->mButtons) &&
 745            ReadParam(aReader, &aResult->mModifiers);
 746   }
 747 };
 748
 749 template <>
 750 struct ParamTraits<mozilla::widget::IMENotification> {
 751   using paramType = mozilla::widget::IMENotification;
 752
 753   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 754     WriteParam(aWriter,
 755                static_cast<mozilla::widget::IMEMessageType>(aParam.mMessage));
 756     switch (aParam.mMessage) {
 757       case mozilla::widget::NOTIFY_IME_OF_SELECTION_CHANGE:
 758         WriteParam(aWriter, aParam.mSelectionChangeData);
 759         return;
 760       case mozilla::widget::NOTIFY_IME_OF_TEXT_CHANGE:
 761         WriteParam(aWriter, aParam.mTextChangeData);
 762         return;
 763       case mozilla::widget::NOTIFY_IME_OF_MOUSE_BUTTON_EVENT:
 764         WriteParam(aWriter, aParam.mMouseButtonEventData);
 765         return;
 766       default:
 767         return;
 768     }
 769   }
 770
 771   static bool Read(MessageReader* aReader, paramType* aResult) {
 772     mozilla::widget::IMEMessageType IMEMessage = 0;
 773     if (!ReadParam(aReader, &IMEMessage)) {
 774       return false;
 775     }
 776     aResult->mMessage = static_cast<mozilla::widget::IMEMessage>(IMEMessage);
 777     switch (aResult->mMessage) {
 778       case mozilla::widget::NOTIFY_IME_OF_SELECTION_CHANGE:
 779         return ReadParam(aReader, &aResult->mSelectionChangeData);
 780       case mozilla::widget::NOTIFY_IME_OF_TEXT_CHANGE:
 781         return ReadParam(aReader, &aResult->mTextChangeData);
 782       case mozilla::widget::NOTIFY_IME_OF_MOUSE_BUTTON_EVENT:
 783         return ReadParam(aReader, &aResult->mMouseButtonEventData);
 784       default:
 785         return true;
 786     }
 787   }
 788 };
 789
 790 template <>
 791 struct ParamTraits<mozilla::widget::IMEEnabled>
 792     : ContiguousEnumSerializer<mozilla::widget::IMEEnabled,
 793                                mozilla::widget::IMEEnabled::Disabled,
 794                                mozilla::widget::IMEEnabled::Unknown> {};
 795
 796 template <>
 797 struct ParamTraits<mozilla::widget::IMEState::Open>
 798     : ContiguousEnumSerializerInclusive<
 799           mozilla::widget::IMEState::Open,
 800           mozilla::widget::IMEState::Open::OPEN_STATE_NOT_SUPPORTED,
 801           mozilla::widget::IMEState::Open::CLOSED> {};
 802
 803 template <>
 804 struct ParamTraits<mozilla::widget::IMEState> {
 805   using paramType = mozilla::widget::IMEState;
 806
 807   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 808     WriteParam(aWriter, aParam.mEnabled);
 809     WriteParam(aWriter, aParam.mOpen);
 810   }
 811
 812   static bool Read(MessageReader* aReader, paramType* aResult) {
 813     return ReadParam(aReader, &aResult->mEnabled) &&
 814            ReadParam(aReader, &aResult->mOpen);
 815   }
 816 };
 817
 818 template <>
 819 struct ParamTraits<mozilla::widget::InputContext::Origin>
 820     : ContiguousEnumSerializerInclusive<
 821           mozilla::widget::InputContext::Origin,
 822           mozilla::widget::InputContext::Origin::ORIGIN_MAIN,
 823           mozilla::widget::InputContext::Origin::ORIGIN_CONTENT> {};
 824
 825 template <>
 826 struct ParamTraits<mozilla::widget::InputContext> {
 827   using paramType = mozilla::widget::InputContext;
 828
 829   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 830     WriteParam(aWriter, aParam.mIMEState);
 831     WriteParam(aWriter, aParam.mHTMLInputType);
 832     WriteParam(aWriter, aParam.mHTMLInputMode);
 833     WriteParam(aWriter, aParam.mActionHint);
 834     WriteParam(aWriter, aParam.mAutocapitalize);
 835     WriteParam(aWriter, aParam.mOrigin);
 836     WriteParam(aWriter, aParam.mHasHandledUserInput);
 837     WriteParam(aWriter, aParam.mInPrivateBrowsing);
 838     mozilla::ipc::WriteIPDLParam(aWriter, aWriter->GetActor(), aParam.mURI);
 839   }
 840
 841   static bool Read(MessageReader* aReader, paramType* aResult) {
 842     return ReadParam(aReader, &aResult->mIMEState) &&
 843            ReadParam(aReader, &aResult->mHTMLInputType) &&
 844            ReadParam(aReader, &aResult->mHTMLInputMode) &&
 845            ReadParam(aReader, &aResult->mActionHint) &&
 846            ReadParam(aReader, &aResult->mAutocapitalize) &&
 847            ReadParam(aReader, &aResult->mOrigin) &&
 848            ReadParam(aReader, &aResult->mHasHandledUserInput) &&
 849            ReadParam(aReader, &aResult->mInPrivateBrowsing) &&
 850            mozilla::ipc::ReadIPDLParam(aReader, aReader->GetActor(),
 851                                        address_of(aResult->mURI));
 852   }
 853 };
 854
 855 template <>
 856 struct ParamTraits<mozilla::widget::InputContextAction::Cause>
 857     : ContiguousEnumSerializerInclusive<
 858           mozilla::widget::InputContextAction::Cause,
 859           mozilla::widget::InputContextAction::Cause::CAUSE_UNKNOWN,
 860           mozilla::widget::InputContextAction::Cause::
 861               CAUSE_UNKNOWN_DURING_KEYBOARD_INPUT> {};
 862
 863 template <>
 864 struct ParamTraits<mozilla::widget::InputContextAction::FocusChange>
 865     : ContiguousEnumSerializerInclusive<
 866           mozilla::widget::InputContextAction::FocusChange,
 867           mozilla::widget::InputContextAction::FocusChange::FOCUS_NOT_CHANGED,
 868           mozilla::widget::InputContextAction::FocusChange::WIDGET_CREATED> {};
 869
 870 template <>
 871 struct ParamTraits<mozilla::widget::InputContextAction> {
 872   using paramType = mozilla::widget::InputContextAction;
 873
 874   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 875     WriteParam(aWriter, aParam.mCause);
 876     WriteParam(aWriter, aParam.mFocusChange);
 877   }
 878
 879   static bool Read(MessageReader* aReader, paramType* aResult) {
 880     return ReadParam(aReader, &aResult->mCause) &&
 881            ReadParam(aReader, &aResult->mFocusChange);
 882   }
 883 };
 884
 885 template <>
 886 struct ParamTraits<mozilla::WritingMode> {
 887   using paramType = mozilla::WritingMode;
 888
 889   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 890     WriteParam(aWriter, aParam.mWritingMode._0);
 891   }
 892
 893   static bool Read(MessageReader* aReader, paramType* aResult) {
 894     return ReadParam(aReader, &aResult->mWritingMode._0);
 895   }
 896 };
 897
 898 template <>
 899 struct ParamTraits<mozilla::ContentCache::Selection> {
 900   using paramType = mozilla::ContentCache::Selection;
 901
 902   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 903     WriteParam(aWriter, aParam.mAnchor);
 904     WriteParam(aWriter, aParam.mFocus);
 905     WriteParam(aWriter, aParam.mWritingMode);
 906     WriteParam(aWriter, aParam.mHasRange);
 907     WriteParam(aWriter, aParam.mAnchorCharRects[0]);
 908     WriteParam(aWriter, aParam.mAnchorCharRects[1]);
 909     WriteParam(aWriter, aParam.mFocusCharRects[0]);
 910     WriteParam(aWriter, aParam.mFocusCharRects[1]);
 911     WriteParam(aWriter, aParam.mRect);
 912   }
 913
 914   static bool Read(MessageReader* aReader, paramType* aResult) {
 915     return ReadParam(aReader, &aResult->mAnchor) &&
 916            ReadParam(aReader, &aResult->mFocus) &&
 917            ReadParam(aReader, &aResult->mWritingMode) &&
 918            ReadParam(aReader, &aResult->mHasRange) &&
 919            ReadParam(aReader, &aResult->mAnchorCharRects[0]) &&
 920            ReadParam(aReader, &aResult->mAnchorCharRects[1]) &&
 921            ReadParam(aReader, &aResult->mFocusCharRects[0]) &&
 922            ReadParam(aReader, &aResult->mFocusCharRects[1]) &&
 923            ReadParam(aReader, &aResult->mRect);
 924   }
 925 };
 926
 927 template <>
 928 struct ParamTraits<mozilla::ContentCache::Caret> {
 929   using paramType = mozilla::ContentCache::Caret;
 930
 931   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 932     WriteParam(aWriter, aParam.mOffset);
 933     WriteParam(aWriter, aParam.mRect);
 934   }
 935
 936   static bool Read(MessageReader* aReader, paramType* aResult) {
 937     return ReadParam(aReader, &aResult->mOffset) &&
 938            ReadParam(aReader, &aResult->mRect);
 939   }
 940 };
 941
 942 template <>
 943 struct ParamTraits<mozilla::ContentCache::TextRectArray> {
 944   using paramType = mozilla::ContentCache::TextRectArray;
 945
 946   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 947     WriteParam(aWriter, aParam.mStart);
 948     WriteParam(aWriter, aParam.mRects);
 949   }
 950
 951   static bool Read(MessageReader* aReader, paramType* aResult) {
 952     return ReadParam(aReader, &aResult->mStart) &&
 953            ReadParam(aReader, &aResult->mRects);
 954   }
 955 };
 956
 957 template <>
 958 struct ParamTraits<mozilla::ContentCache> {
 959   using paramType = mozilla::ContentCache;
 960
 961   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 962     WriteParam(aWriter, aParam.mCompositionStart);
 963     WriteParam(aWriter, aParam.mText);
 964     WriteParam(aWriter, aParam.mSelection);
 965     WriteParam(aWriter, aParam.mFirstCharRect);
 966     WriteParam(aWriter, aParam.mCaret);
 967     WriteParam(aWriter, aParam.mTextRectArray);
 968     WriteParam(aWriter, aParam.mLastCommitStringTextRectArray);
 969     WriteParam(aWriter, aParam.mEditorRect);
 970   }
 971
 972   static bool Read(MessageReader* aReader, paramType* aResult) {
 973     return ReadParam(aReader, &aResult->mCompositionStart) &&
 974            ReadParam(aReader, &aResult->mText) &&
 975            ReadParam(aReader, &aResult->mSelection) &&
 976            ReadParam(aReader, &aResult->mFirstCharRect) &&
 977            ReadParam(aReader, &aResult->mCaret) &&
 978            ReadParam(aReader, &aResult->mTextRectArray) &&
 979            ReadParam(aReader, &aResult->mLastCommitStringTextRectArray) &&
 980            ReadParam(aReader, &aResult->mEditorRect);
 981   }
 982 };
 983
 984 template <>
 985 struct ParamTraits<mozilla::widget::CandidateWindowPosition> {
 986   using paramType = mozilla::widget::CandidateWindowPosition;
 987
 988   static void Write(MessageWriter* aWriter, const paramType& aParam) {
 989     WriteParam(aWriter, aParam.mPoint);
 990     WriteParam(aWriter, aParam.mRect);
 991     WriteParam(aWriter, aParam.mExcludeRect);
 992   }
 993
 994   static bool Read(MessageReader* aReader, paramType* aResult) {
 995     return ReadParam(aReader, &aResult->mPoint) &&
 996            ReadParam(aReader, &aResult->mRect) &&
 997            ReadParam(aReader, &aResult->mExcludeRect);
 998   }
 999 };
1000
1001 // InputData.h
1002
1003 template <>
1004 struct ParamTraits<mozilla::InputType>
1005     : public ContiguousEnumSerializerInclusive<
1006           mozilla::InputType, mozilla::InputType::MULTITOUCH_INPUT,
1007           mozilla::kHighestInputType> {};
1008
1009 template <>
1010 struct ParamTraits<mozilla::InputData> {
1011   using paramType = mozilla::InputData;
1012
1013   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1014     WriteParam(aWriter, aParam.mInputType);
1015     WriteParam(aWriter, aParam.mTimeStamp);
1016     WriteParam(aWriter, aParam.modifiers);
1017     WriteParam(aWriter, aParam.mFocusSequenceNumber);
1018     WriteParam(aWriter, aParam.mLayersId);
1019   }
1020
1021   static bool Read(MessageReader* aReader, paramType* aResult) {
1022     return ReadParam(aReader, &aResult->mInputType) &&
1023            ReadParam(aReader, &aResult->mTimeStamp) &&
1024            ReadParam(aReader, &aResult->modifiers) &&
1025            ReadParam(aReader, &aResult->mFocusSequenceNumber) &&
1026            ReadParam(aReader, &aResult->mLayersId);
1027   }
1028 };
1029
1030 template <>
1031 struct ParamTraits<mozilla::SingleTouchData::HistoricalTouchData> {
1032   using paramType = mozilla::SingleTouchData::HistoricalTouchData;
1033
1034   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1035     WriteParam(aWriter, aParam.mTimeStamp);
1036     WriteParam(aWriter, aParam.mScreenPoint);
1037     WriteParam(aWriter, aParam.mLocalScreenPoint);
1038     WriteParam(aWriter, aParam.mRadius);
1039     WriteParam(aWriter, aParam.mRotationAngle);
1040     WriteParam(aWriter, aParam.mForce);
1041   }
1042
1043   static bool Read(MessageReader* aReader, paramType* aResult) {
1044     return (ReadParam(aReader, &aResult->mTimeStamp) &&
1045             ReadParam(aReader, &aResult->mScreenPoint) &&
1046             ReadParam(aReader, &aResult->mLocalScreenPoint) &&
1047             ReadParam(aReader, &aResult->mRadius) &&
1048             ReadParam(aReader, &aResult->mRotationAngle) &&
1049             ReadParam(aReader, &aResult->mForce));
1050   }
1051 };
1052
1053 template <>
1054 struct ParamTraits<mozilla::SingleTouchData> {
1055   using paramType = mozilla::SingleTouchData;
1056
1057   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1058     WriteParam(aWriter, aParam.mHistoricalData);
1059     WriteParam(aWriter, aParam.mIdentifier);
1060     WriteParam(aWriter, aParam.mScreenPoint);
1061     WriteParam(aWriter, aParam.mLocalScreenPoint);
1062     WriteParam(aWriter, aParam.mRadius);
1063     WriteParam(aWriter, aParam.mRotationAngle);
1064     WriteParam(aWriter, aParam.mForce);
1065     WriteParam(aWriter, aParam.mTiltX);
1066     WriteParam(aWriter, aParam.mTiltY);
1067     WriteParam(aWriter, aParam.mTwist);
1068   }
1069
1070   static bool Read(MessageReader* aReader, paramType* aResult) {
1071     return (ReadParam(aReader, &aResult->mHistoricalData) &&
1072             ReadParam(aReader, &aResult->mIdentifier) &&
1073             ReadParam(aReader, &aResult->mScreenPoint) &&
1074             ReadParam(aReader, &aResult->mLocalScreenPoint) &&
1075             ReadParam(aReader, &aResult->mRadius) &&
1076             ReadParam(aReader, &aResult->mRotationAngle) &&
1077             ReadParam(aReader, &aResult->mForce) &&
1078             ReadParam(aReader, &aResult->mTiltX) &&
1079             ReadParam(aReader, &aResult->mTiltY) &&
1080             ReadParam(aReader, &aResult->mTwist));
1081   }
1082 };
1083
1084 template <>
1085 struct ParamTraits<mozilla::MultiTouchInput::MultiTouchType>
1086     : public ContiguousEnumSerializerInclusive<
1087           mozilla::MultiTouchInput::MultiTouchType,
1088           mozilla::MultiTouchInput::MultiTouchType::MULTITOUCH_START,
1089           mozilla::MultiTouchInput::sHighestMultiTouchType> {};
1090
1091 template <>
1092 struct ParamTraits<mozilla::MultiTouchInput> {
1093   using paramType = mozilla::MultiTouchInput;
1094
1095   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1096     WriteParam(aWriter, static_cast<const mozilla::InputData&>(aParam));
1097     WriteParam(aWriter, aParam.mType);
1098     WriteParam(aWriter, aParam.mTouches);
1099     WriteParam(aWriter, aParam.mHandledByAPZ);
1100     WriteParam(aWriter, aParam.mScreenOffset);
1101     WriteParam(aWriter, aParam.mButton);
1102     WriteParam(aWriter, aParam.mButtons);
1103   }
1104
1105   static bool Read(MessageReader* aReader, paramType* aResult) {
1106     return ReadParam(aReader, static_cast<mozilla::InputData*>(aResult)) &&
1107            ReadParam(aReader, &aResult->mType) &&
1108            ReadParam(aReader, &aResult->mTouches) &&
1109            ReadParam(aReader, &aResult->mHandledByAPZ) &&
1110            ReadParam(aReader, &aResult->mScreenOffset) &&
1111            ReadParam(aReader, &aResult->mButton) &&
1112            ReadParam(aReader, &aResult->mButtons);
1113   }
1114 };
1115
1116 template <>
1117 struct ParamTraits<mozilla::MouseInput::MouseType>
1118     : public ContiguousEnumSerializerInclusive<
1119           mozilla::MouseInput::MouseType,
1120           mozilla::MouseInput::MouseType::MOUSE_NONE,
1121           mozilla::MouseInput::sHighestMouseType> {};
1122
1123 template <>
1124 struct ParamTraits<mozilla::MouseInput::ButtonType>
1125     : public ContiguousEnumSerializerInclusive<
1126           mozilla::MouseInput::ButtonType,
1127           mozilla::MouseInput::ButtonType::PRIMARY_BUTTON,
1128           mozilla::MouseInput::sHighestButtonType> {};
1129
1130 template <>
1131 struct ParamTraits<mozilla::MouseInput> {
1132   using paramType = mozilla::MouseInput;
1133
1134   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1135     WriteParam(aWriter, static_cast<const mozilla::InputData&>(aParam));
1136     WriteParam(aWriter, aParam.mButtonType);
1137     WriteParam(aWriter, aParam.mType);
1138     WriteParam(aWriter, aParam.mInputSource);
1139     WriteParam(aWriter, aParam.mButtons);
1140     WriteParam(aWriter, aParam.mOrigin);
1141     WriteParam(aWriter, aParam.mLocalOrigin);
1142     WriteParam(aWriter, aParam.mHandledByAPZ);
1143     WriteParam(aWriter, aParam.mPreventClickEvent);
1144   }
1145
1146   static bool Read(MessageReader* aReader, paramType* aResult) {
1147     return ReadParam(aReader, static_cast<mozilla::InputData*>(aResult)) &&
1148            ReadParam(aReader, &aResult->mButtonType) &&
1149            ReadParam(aReader, &aResult->mType) &&
1150            ReadParam(aReader, &aResult->mInputSource) &&
1151            ReadParam(aReader, &aResult->mButtons) &&
1152            ReadParam(aReader, &aResult->mOrigin) &&
1153            ReadParam(aReader, &aResult->mLocalOrigin) &&
1154            ReadParam(aReader, &aResult->mHandledByAPZ) &&
1155            ReadParam(aReader, &aResult->mPreventClickEvent);
1156   }
1157 };
1158
1159 template <>
1160 struct ParamTraits<mozilla::PanGestureInput::PanGestureType>
1161     : public ContiguousEnumSerializerInclusive<
1162           mozilla::PanGestureInput::PanGestureType,
1163           mozilla::PanGestureInput::PanGestureType::PANGESTURE_MAYSTART,
1164           mozilla::PanGestureInput::sHighestPanGestureType> {};
1165
1166 template <>
1167 struct ParamTraits<mozilla::PanGestureInput::PanDeltaType>
1168     : public ContiguousEnumSerializerInclusive<
1169           mozilla::PanGestureInput::PanDeltaType,
1170           mozilla::PanGestureInput::PanDeltaType::PANDELTA_PAGE,
1171           mozilla::PanGestureInput::sHighestPanDeltaType> {};
1172
1173 template <>
1174 struct ParamTraits<mozilla::PanGestureInput>
1175     : BitfieldHelper<mozilla::PanGestureInput> {
1176   using paramType = mozilla::PanGestureInput;
1177
1178   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1179     WriteParam(aWriter, static_cast<const mozilla::InputData&>(aParam));
1180     WriteParam(aWriter, aParam.mType);
1181     WriteParam(aWriter, aParam.mPanStartPoint);
1182     WriteParam(aWriter, aParam.mPanDisplacement);
1183     WriteParam(aWriter, aParam.mLocalPanStartPoint);
1184     WriteParam(aWriter, aParam.mLocalPanDisplacement);
1185     WriteParam(aWriter, aParam.mLineOrPageDeltaX);
1186     WriteParam(aWriter, aParam.mLineOrPageDeltaY);
1187     WriteParam(aWriter, aParam.mUserDeltaMultiplierX);
1188     WriteParam(aWriter, aParam.mUserDeltaMultiplierY);
1189     WriteParam(aWriter, aParam.mDeltaType);
1190     WriteParam(aWriter, aParam.mHandledByAPZ);
1191     WriteParam(aWriter, aParam.mMayTriggerSwipe);
1192     WriteParam(aWriter, aParam.mOverscrollBehaviorAllowsSwipe);
1193     WriteParam(aWriter, aParam.mSimulateMomentum);
1194     WriteParam(aWriter, aParam.mIsNoLineOrPageDelta);
1195   }
1196
1197   static bool Read(MessageReader* aReader, paramType* aResult) {
1198     return ReadParam(aReader, static_cast<mozilla::InputData*>(aResult)) &&
1199            ReadParam(aReader, &aResult->mType) &&
1200            ReadParam(aReader, &aResult->mPanStartPoint) &&
1201            ReadParam(aReader, &aResult->mPanDisplacement) &&
1202            ReadParam(aReader, &aResult->mLocalPanStartPoint) &&
1203            ReadParam(aReader, &aResult->mLocalPanDisplacement) &&
1204            ReadParam(aReader, &aResult->mLineOrPageDeltaX) &&
1205            ReadParam(aReader, &aResult->mLineOrPageDeltaY) &&
1206            ReadParam(aReader, &aResult->mUserDeltaMultiplierX) &&
1207            ReadParam(aReader, &aResult->mUserDeltaMultiplierY) &&
1208            ReadParam(aReader, &aResult->mDeltaType) &&
1209            ReadBoolForBitfield(aReader, aResult, &paramType::SetHandledByAPZ) &&
1210            ReadBoolForBitfield(aReader, aResult,
1211                                &paramType::SetMayTriggerSwipe) &&
1212            ReadBoolForBitfield(aReader, aResult,
1213                                &paramType::SetOverscrollBehaviorAllowsSwipe) &&
1214            ReadBoolForBitfield(aReader, aResult,
1215                                &paramType::SetSimulateMomentum) &&
1216            ReadBoolForBitfield(aReader, aResult,
1217                                &paramType::SetIsNoLineOrPageDelta);
1218   }
1219 };
1220
1221 template <>
1222 struct ParamTraits<mozilla::PinchGestureInput::PinchGestureType>
1223     : public ContiguousEnumSerializerInclusive<
1224           mozilla::PinchGestureInput::PinchGestureType,
1225           mozilla::PinchGestureInput::PinchGestureType::PINCHGESTURE_START,
1226           mozilla::PinchGestureInput::sHighestPinchGestureType> {};
1227
1228 template <>
1229 struct ParamTraits<mozilla::PinchGestureInput::PinchGestureSource>
1230     : public ContiguousEnumSerializerInclusive<
1231           mozilla::PinchGestureInput::PinchGestureSource,
1232           // Set the min to TOUCH, to ensure UNKNOWN is never sent over IPC
1233           mozilla::PinchGestureInput::PinchGestureSource::TOUCH,
1234           mozilla::PinchGestureInput::sHighestPinchGestureSource> {};
1235
1236 template <>
1237 struct ParamTraits<mozilla::PinchGestureInput> {
1238   using paramType = mozilla::PinchGestureInput;
1239
1240   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1241     WriteParam(aWriter, static_cast<const mozilla::InputData&>(aParam));
1242     WriteParam(aWriter, aParam.mType);
1243     WriteParam(aWriter, aParam.mSource);
1244     WriteParam(aWriter, aParam.mScreenOffset);
1245     WriteParam(aWriter, aParam.mFocusPoint);
1246     WriteParam(aWriter, aParam.mLocalFocusPoint);
1247     WriteParam(aWriter, aParam.mCurrentSpan);
1248     WriteParam(aWriter, aParam.mPreviousSpan);
1249     WriteParam(aWriter, aParam.mLineOrPageDeltaY);
1250     WriteParam(aWriter, aParam.mHandledByAPZ);
1251   }
1252
1253   static bool Read(MessageReader* aReader, paramType* aResult) {
1254     return ReadParam(aReader, static_cast<mozilla::InputData*>(aResult)) &&
1255            ReadParam(aReader, &aResult->mType) &&
1256            ReadParam(aReader, &aResult->mSource) &&
1257            ReadParam(aReader, &aResult->mScreenOffset) &&
1258            ReadParam(aReader, &aResult->mFocusPoint) &&
1259            ReadParam(aReader, &aResult->mLocalFocusPoint) &&
1260            ReadParam(aReader, &aResult->mCurrentSpan) &&
1261            ReadParam(aReader, &aResult->mPreviousSpan) &&
1262            ReadParam(aReader, &aResult->mLineOrPageDeltaY) &&
1263            ReadParam(aReader, &aResult->mHandledByAPZ);
1264   }
1265 };
1266
1267 template <>
1268 struct ParamTraits<mozilla::TapGestureInput::TapGestureType>
1269     : public ContiguousEnumSerializerInclusive<
1270           mozilla::TapGestureInput::TapGestureType,
1271           mozilla::TapGestureInput::TapGestureType::TAPGESTURE_LONG,
1272           mozilla::TapGestureInput::sHighestTapGestureType> {};
1273
1274 template <>
1275 struct ParamTraits<mozilla::TapGestureInput> {
1276   using paramType = mozilla::TapGestureInput;
1277
1278   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1279     WriteParam(aWriter, static_cast<const mozilla::InputData&>(aParam));
1280     WriteParam(aWriter, aParam.mType);
1281     WriteParam(aWriter, aParam.mPoint);
1282     WriteParam(aWriter, aParam.mLocalPoint);
1283   }
1284
1285   static bool Read(MessageReader* aReader, paramType* aResult) {
1286     return ReadParam(aReader, static_cast<mozilla::InputData*>(aResult)) &&
1287            ReadParam(aReader, &aResult->mType) &&
1288            ReadParam(aReader, &aResult->mPoint) &&
1289            ReadParam(aReader, &aResult->mLocalPoint);
1290   }
1291 };
1292
1293 template <>
1294 struct ParamTraits<mozilla::ScrollWheelInput::ScrollDeltaType>
1295     : public ContiguousEnumSerializerInclusive<
1296           mozilla::ScrollWheelInput::ScrollDeltaType,
1297           mozilla::ScrollWheelInput::ScrollDeltaType::SCROLLDELTA_LINE,
1298           mozilla::ScrollWheelInput::sHighestScrollDeltaType> {};
1299
1300 template <>
1301 struct ParamTraits<mozilla::ScrollWheelInput::ScrollMode>
1302     : public ContiguousEnumSerializerInclusive<
1303           mozilla::ScrollWheelInput::ScrollMode,
1304           mozilla::ScrollWheelInput::ScrollMode::SCROLLMODE_INSTANT,
1305           mozilla::ScrollWheelInput::sHighestScrollMode> {};
1306
1307 template <>
1308 struct ParamTraits<mozilla::WheelDeltaAdjustmentStrategy>
1309     : public ContiguousEnumSerializer<
1310           mozilla::WheelDeltaAdjustmentStrategy,
1311           mozilla::WheelDeltaAdjustmentStrategy(0),
1312           mozilla::WheelDeltaAdjustmentStrategy::eSentinel> {};
1313
1314 template <>
1315 struct ParamTraits<mozilla::layers::APZWheelAction>
1316     : public ContiguousEnumSerializerInclusive<
1317           mozilla::layers::APZWheelAction,
1318           mozilla::layers::APZWheelAction::Scroll,
1319           mozilla::layers::kHighestAPZWheelAction> {};
1320
1321 template <>
1322 struct ParamTraits<mozilla::ScrollWheelInput> {
1323   using paramType = mozilla::ScrollWheelInput;
1324
1325   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1326     WriteParam(aWriter, static_cast<const mozilla::InputData&>(aParam));
1327     WriteParam(aWriter, aParam.mDeltaType);
1328     WriteParam(aWriter, aParam.mScrollMode);
1329     WriteParam(aWriter, aParam.mOrigin);
1330     WriteParam(aWriter, aParam.mHandledByAPZ);
1331     WriteParam(aWriter, aParam.mDeltaX);
1332     WriteParam(aWriter, aParam.mDeltaY);
1333     WriteParam(aWriter, aParam.mWheelTicksX);
1334     WriteParam(aWriter, aParam.mWheelTicksY);
1335     WriteParam(aWriter, aParam.mLocalOrigin);
1336     WriteParam(aWriter, aParam.mLineOrPageDeltaX);
1337     WriteParam(aWriter, aParam.mLineOrPageDeltaY);
1338     WriteParam(aWriter, aParam.mScrollSeriesNumber);
1339     WriteParam(aWriter, aParam.mUserDeltaMultiplierX);
1340     WriteParam(aWriter, aParam.mUserDeltaMultiplierY);
1341     WriteParam(aWriter, aParam.mMayHaveMomentum);
1342     WriteParam(aWriter, aParam.mIsMomentum);
1343     WriteParam(aWriter, aParam.mAllowToOverrideSystemScrollSpeed);
1344     WriteParam(aWriter, aParam.mWheelDeltaAdjustmentStrategy);
1345     WriteParam(aWriter, aParam.mAPZAction);
1346   }
1347
1348   static bool Read(MessageReader* aReader, paramType* aResult) {
1349     return ReadParam(aReader, static_cast<mozilla::InputData*>(aResult)) &&
1350            ReadParam(aReader, &aResult->mDeltaType) &&
1351            ReadParam(aReader, &aResult->mScrollMode) &&
1352            ReadParam(aReader, &aResult->mOrigin) &&
1353            ReadParam(aReader, &aResult->mHandledByAPZ) &&
1354            ReadParam(aReader, &aResult->mDeltaX) &&
1355            ReadParam(aReader, &aResult->mDeltaY) &&
1356            ReadParam(aReader, &aResult->mWheelTicksX) &&
1357            ReadParam(aReader, &aResult->mWheelTicksY) &&
1358            ReadParam(aReader, &aResult->mLocalOrigin) &&
1359            ReadParam(aReader, &aResult->mLineOrPageDeltaX) &&
1360            ReadParam(aReader, &aResult->mLineOrPageDeltaY) &&
1361            ReadParam(aReader, &aResult->mScrollSeriesNumber) &&
1362            ReadParam(aReader, &aResult->mUserDeltaMultiplierX) &&
1363            ReadParam(aReader, &aResult->mUserDeltaMultiplierY) &&
1364            ReadParam(aReader, &aResult->mMayHaveMomentum) &&
1365            ReadParam(aReader, &aResult->mIsMomentum) &&
1366            ReadParam(aReader, &aResult->mAllowToOverrideSystemScrollSpeed) &&
1367            ReadParam(aReader, &aResult->mWheelDeltaAdjustmentStrategy) &&
1368            ReadParam(aReader, &aResult->mAPZAction);
1369   }
1370 };
1371
1372 template <>
1373 struct ParamTraits<mozilla::KeyboardInput::KeyboardEventType>
1374     : public ContiguousEnumSerializer<
1375           mozilla::KeyboardInput::KeyboardEventType,
1376           mozilla::KeyboardInput::KeyboardEventType::KEY_DOWN,
1377           mozilla::KeyboardInput::KeyboardEventType::KEY_SENTINEL> {};
1378
1379 template <>
1380 struct ParamTraits<mozilla::KeyboardInput> {
1381   using paramType = mozilla::KeyboardInput;
1382
1383   static void Write(MessageWriter* aWriter, const paramType& aParam) {
1384     WriteParam(aWriter, static_cast<const mozilla::InputData&>(aParam));
1385     WriteParam(aWriter, aParam.mType);
1386     WriteParam(aWriter, aParam.mKeyCode);
1387     WriteParam(aWriter, aParam.mCharCode);
1388     WriteParam(aWriter, aParam.mShortcutCandidates);
1389     WriteParam(aWriter, aParam.mHandledByAPZ);
1390   }
1391
1392   static bool Read(MessageReader* aReader, paramType* aResult) {
1393     return ReadParam(aReader, static_cast<mozilla::InputData*>(aResult)) &&
1394            ReadParam(aReader, &aResult->mType) &&
1395            ReadParam(aReader, &aResult->mKeyCode) &&
1396            ReadParam(aReader, &aResult->mCharCode) &&
1397            ReadParam(aReader, &aResult->mShortcutCandidates) &&
1398            ReadParam(aReader, &aResult->mHandledByAPZ);
1399   }
1400 };
1401
1402 }  // namespace IPC
1403
1404 #endif  // nsGUIEventIPC_h__