michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "InputData.h"
michael@0: 
michael@0: #include "mozilla/dom/Touch.h"
michael@0: #include "nsDebug.h"
michael@0: #include "nsThreadUtils.h"
michael@0: #include "mozilla/MouseEvents.h"
michael@0: #include "mozilla/TouchEvents.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: using namespace dom;
michael@0: 
michael@0: MultiTouchInput::MultiTouchInput(const WidgetTouchEvent& aTouchEvent)
michael@0:   : InputData(MULTITOUCH_INPUT, aTouchEvent.time, aTouchEvent.modifiers)
michael@0: {
michael@0:   NS_ABORT_IF_FALSE(NS_IsMainThread(),
michael@0:                     "Can only copy from WidgetTouchEvent on main thread");
michael@0: 
michael@0:   switch (aTouchEvent.message) {
michael@0:     case NS_TOUCH_START:
michael@0:       mType = MULTITOUCH_START;
michael@0:       break;
michael@0:     case NS_TOUCH_MOVE:
michael@0:       mType = MULTITOUCH_MOVE;
michael@0:       break;
michael@0:     case NS_TOUCH_END:
michael@0:       mType = MULTITOUCH_END;
michael@0:       break;
michael@0:     case NS_TOUCH_ENTER:
michael@0:       mType = MULTITOUCH_ENTER;
michael@0:       break;
michael@0:     case NS_TOUCH_LEAVE:
michael@0:       mType = MULTITOUCH_LEAVE;
michael@0:       break;
michael@0:     case NS_TOUCH_CANCEL:
michael@0:       mType = MULTITOUCH_CANCEL;
michael@0:       break;
michael@0:     default:
michael@0:       NS_WARNING("Did not assign a type to a MultiTouchInput");
michael@0:       break;
michael@0:   }
michael@0: 
michael@0:   for (size_t i = 0; i < aTouchEvent.touches.Length(); i++) {
michael@0:     const Touch* domTouch = aTouchEvent.touches[i];
michael@0: 
michael@0:     // Extract data from weird interfaces.
michael@0:     int32_t identifier = domTouch->Identifier();
michael@0:     int32_t radiusX = domTouch->RadiusX();
michael@0:     int32_t radiusY = domTouch->RadiusY();
michael@0:     float rotationAngle = domTouch->RotationAngle();
michael@0:     float force = domTouch->Force();
michael@0: 
michael@0:     SingleTouchData data(identifier,
michael@0:                          ScreenIntPoint::FromUnknownPoint(
michael@0:                            gfx::IntPoint(domTouch->mRefPoint.x,
michael@0:                                          domTouch->mRefPoint.y)),
michael@0:                          ScreenSize(radiusX, radiusY),
michael@0:                          rotationAngle,
michael@0:                          force);
michael@0: 
michael@0:     mTouches.AppendElement(data);
michael@0:   }
michael@0: }
michael@0: 
michael@0: // This conversion from WidgetMouseEvent to MultiTouchInput is needed because on
michael@0: // the B2G emulator we can only receive mouse events, but we need to be able
michael@0: // to pan correctly. To do this, we convert the events into a format that the
michael@0: // panning code can handle. This code is very limited and only supports
michael@0: // SingleTouchData. It also sends garbage for the identifier, radius, force
michael@0: // and rotation angle.
michael@0: MultiTouchInput::MultiTouchInput(const WidgetMouseEvent& aMouseEvent)
michael@0:   : InputData(MULTITOUCH_INPUT, aMouseEvent.time, aMouseEvent.modifiers)
michael@0: {
michael@0:   NS_ABORT_IF_FALSE(NS_IsMainThread(),
michael@0:                     "Can only copy from WidgetMouseEvent on main thread");
michael@0:   switch (aMouseEvent.message) {
michael@0:   case NS_MOUSE_BUTTON_DOWN:
michael@0:     mType = MULTITOUCH_START;
michael@0:     break;
michael@0:   case NS_MOUSE_MOVE:
michael@0:     mType = MULTITOUCH_MOVE;
michael@0:     break;
michael@0:   case NS_MOUSE_BUTTON_UP:
michael@0:     mType = MULTITOUCH_END;
michael@0:     break;
michael@0:   // The mouse pointer has been interrupted in an implementation-specific
michael@0:   // manner, such as a synchronous event or action cancelling the touch, or a
michael@0:   // touch point leaving the document window and going into a non-document
michael@0:   // area capable of handling user interactions.
michael@0:   case NS_MOUSE_EXIT:
michael@0:     mType = MULTITOUCH_CANCEL;
michael@0:     break;
michael@0:   default:
michael@0:     NS_WARNING("Did not assign a type to a MultiTouchInput");
michael@0:     break;
michael@0:   }
michael@0: 
michael@0:   mTouches.AppendElement(SingleTouchData(0,
michael@0:                                          ScreenIntPoint::FromUnknownPoint(
michael@0:                                            gfx::IntPoint(aMouseEvent.refPoint.x,
michael@0:                                                          aMouseEvent.refPoint.y)),
michael@0:                                          ScreenSize(1, 1),
michael@0:                                          180.0f,
michael@0:                                          1.0f));
michael@0: }
michael@0: }