--- a/webengine/webkitutils/stmgesturefw/src/tapgesturerecogniser.cpp Tue Feb 02 00:56:45 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,352 +0,0 @@
-/*
-* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of the License "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description: Gesture helper implementation
-*
-*/
-
-#include "GenericSimpleGesture.h"
-#include "TapGestureRecogniser.h"
-#include "rt_uievent.h"
-#include "filelogger.h"
-
-using namespace stmGesture ;
-
-/* some utility functions, are these things not provided by the OS? */
-const TInt KFingerSize_mm = 8;
-const TInt KTwipsInInch = 1440;
-const TReal KTwipsInMm = 56.7;
-
-long Twips2Pixels(long twips)
-{
- CWsScreenDevice* screen = CCoeEnv::Static()->ScreenDevice();
- TZoomFactor deviceMap(screen);
- deviceMap.SetZoomFactor(TZoomFactor::EZoomOneToOne);
- long px = deviceMap.VerticalTwipsToPixels(twips); //assuming that vertical
- return px; //the same as horizontal
-}
-
-long Mm2Pixels(long mm)
-{
- return Twips2Pixels(mm * KTwipsInMm);
-}
-
-long Inches2Pixels(double inches)
-{
- return Twips2Pixels(inches * KTwipsInInch);
-}
-
-TRect ToleranceRect(const TPoint& aCenterPoint, int size)
-{
- long toleranceLength = Mm2Pixels(KFingerSize_mm) / 2;
- TRect toleranceRect(aCenterPoint, TSize());
- toleranceRect.Shrink(-size, -size);
- return toleranceRect;
-}
-
-CTapGestureRecogniser* CTapGestureRecogniser::NewL(MGestureListener* aListener)
-{
- CTapGestureRecogniser* self = new (ELeave) CTapGestureRecogniser(aListener) ;
- CleanupStack::PushL(self);
- self->ConstructL(); // construct base class
- CActiveScheduler::Add(self);
- CleanupStack::Pop(self);
- return self;
-}
-
-CTapGestureRecogniser::CTapGestureRecogniser(MGestureListener* aListener) :
- CTimer(EPriorityRealTime - 1)
-{
- m_powner = aListener->getOwner() ;
- // if a listener is given here, then it is both tap and doubletap listener
- if (aListener)
- {
- addTapListener(aListener, m_powner) ;
- addDoubleTapListener(aListener, m_powner) ;
- }
- m_waitingforsecondtap = false ;
- m_gestureEnabled = true ;
- m_ignorefirst = true ; // by default ignore the first tap
-}
-
-CTapGestureRecogniser::~CTapGestureRecogniser()
-{
- Cancel();
- m_tapListeners.Reset() ;
- m_tapListenerWindows.Reset() ;
- m_doubleTapListeners.Reset() ;
- m_doubleTapListenerWindows.Reset() ;
-
-}
-
-TGestureRecognitionState CTapGestureRecogniser::recognise(int numOfActiveStreams,
- MGestureEngineIf* pge)
-{
- TGestureRecognitionState state = ENotMyGesture;
- // Check if we are enabled or not
- if (!m_gestureEnabled) return state ;
-
- // Look at the events to see if it looks like a tap or double tap
- if (numOfActiveStreams == 1)
- {
- // Then look at the event stream, it has to be tap and release
- const stmUiEventEngine::MUiEvent* puie = pge->getUiEvents(0);
- if (!puie) return state;
-
- int countOfEvents = puie->countOfEvents() ;
- stmUiEventEngine::TUiEventCode eventCode = puie->Code() ;
-
- if (m_loggingenabled)
- {
- LOGARG("CTapGestureRecogniser: %d num %d code %d", eventCode, countOfEvents, eventCode);
- }
- if (countOfEvents == 2) // Do we have touch and release in the stream, check if there are two events
- {
- // Then look at the events to see if they are suitable for us
- if (eventCode == stmUiEventEngine::ERelease) // The last one is release
- {
- stmUiEventEngine::MUiEvent* puieFirst = puie->previousEvent();
-
- if(puieFirst)
- eventCode = puieFirst->Code();
- else
- return state;
-
- if (eventCode == stmUiEventEngine::ETouch) // is the first one ETouch
- {
- if (m_loggingenabled)
- {
- LOGARG("CTapGestureRecogniser: 0x%x TAP: num %d code %d",
- this, countOfEvents, eventCode);
- }
- // It is tap gesture in our window, handle it
- state = EGestureActive;
-
- CCoeControl* target = (CCoeControl*)puie->Target();
-
- if (m_waitingforsecondtap)
- {
- m_waitingforsecondtap = false ;
- if (m_loggingenabled)
- {
- LOGARG("CTapGestureRecogniser: 0x%x second tap: num %d code %d",
- this, countOfEvents, eventCode);
- }
-
- Cancel() ; // The timer
-
- const TPoint& secondPoint = puieFirst->CurrentXY() ;
- if (isSecondTapClose(secondPoint, m_firstTapXY))
- {
- // Taps were close enough together, so issue a doubletap
-
- // Call the listener of the current window to inform that a doubletap has occurred...
- TInt inx = m_doubleTapListenerWindows.Find(target) ;
- if (inx == KErrNotFound)
- {
- // the second tap hit a window with no listener,
- // check if the first one has a listener
- inx = m_doubleTapListenerWindows.Find(m_firstTapTarget) ;
- }
- // not found, check if the parent is in the listener list
- if (inx == KErrNotFound)
- {
- CCoeControl* pc = target ;
- while (pc)
- {
- pc = pc->Parent() ;
- inx = m_doubleTapListenerWindows.Find(pc) ;
- if (inx != KErrNotFound) break ;
- }
- }
- if (inx != KErrNotFound)
- {
- // Tap gesture
- stmGesture::TGenericSimpleGesture pgest(
- stmGesture::EGestureUidDoubleTap,
- secondPoint, stmGesture::ETapTypeDouble, puie) ;
- MGestureListener* plistener = m_doubleTapListeners[inx] ;
- plistener->gestureEnter(pgest) ;
- }
- }
- else
- {
- // Second tap is too far away, generate just tap
- // and if configured, also the fist tap is generated
- if (!m_ignorefirst)
- {
- // do not ignore the first tap, so issue it now using the stored location
- // Call the listener to inform that a Tap has occurred, if there was a listener in that window
- TInt inx = m_tapListenerWindows.Find(m_firstTapTarget) ;
- if (inx != KErrNotFound) // check if the listener exists
- {
- stmGesture::TGenericSimpleGesture pgest(
- stmGesture::EGestureUidTap, puieFirst->CurrentXY(),
- stmGesture::ETapTypeSingle, puieFirst) ; // TODO: speed is 0?
- MGestureListener* plistener = m_tapListeners[inx] ;
- plistener->gestureEnter(pgest) ;
- }
- }
- // generate a tap at the current location, if there is a listener for it
- TInt inx = m_tapListenerWindows.Find(target) ;
- if (inx != KErrNotFound)
- {
- stmGesture::TGenericSimpleGesture pgest(
- stmGesture::EGestureUidTap, puie->CurrentXY(),
- stmGesture::ETapTypeSingle, puie) ; // TODO: speed is 0?
- MGestureListener* plistener = m_tapListeners[inx] ;
- plistener->gestureEnter(pgest) ;
- }
- }
- }
- else
- {
- m_firstTapXY = puieFirst->CurrentXY() ;
- m_firstTapTarget = target ;
- m_firstTapSpeedX = puie->speedX() ;
- m_firstTapSpeedY = puie->speedY() ;
- // This was the first tap, start the timer...
- m_waitingforsecondtap = true ;
- if (m_loggingenabled)
- {
- LOGARG("CTapGestureRecogniser: 0x%x first tap: num %d code %d",
- this, countOfEvents, eventCode);
- }
- Cancel() ; // Just to be sure...
- After(m_doubleTapTimeout) ;
- }
-
- }
- }
- }
- }
- return state;
-}
-
-void CTapGestureRecogniser::release(MGestureEngineIf* /*ge*/)
-{
- Cancel() ; // some other gesture took hold of the thing, do not send tap gesture
- m_waitingforsecondtap = false ;
- if (m_loggingenabled)
- {
- LOGARG("CTapGestureRecogniser: 0x%x release, %d %d",
- this, m_firstTapXY.iX, m_firstTapXY.iY);
- }
-}
-
-void CTapGestureRecogniser::RunL()
-{
- m_waitingforsecondtap = false ;
- if (m_loggingenabled)
- {
- LOGARG("CTapGestureRecogniser: 0x%x timer, %d %d", this, m_firstTapXY.iX, m_firstTapXY.iY);
- }
- // Double tap timer has been elapsed without new Touch/Release, generate the tap if there is a listener
- TInt inx = m_tapListenerWindows.Find(m_firstTapTarget) ;
- if (inx != KErrNotFound)
- {
- using stmUiEventEngine::TUiEventSpeed;
-
- TUiEventSpeed speedIf(m_firstTapSpeedX,m_firstTapSpeedY);
-
- stmGesture::TGenericSimpleGesture pgest(
- stmGesture::EGestureUidTap,
- m_firstTapXY,
- stmGesture::ETapTypeSingle,
- &speedIf) ;
-
- MGestureListener* plistener = m_tapListeners[inx] ;
- plistener->gestureEnter(pgest) ;
- }
-}
-
-void CTapGestureRecogniser::enableLogging(bool loggingOn)
-{
- m_loggingenabled = loggingOn;
-}
-
-void CTapGestureRecogniser::setOwner(CCoeControl* owner)
-{
- m_powner = owner;
-}
-
-void CTapGestureRecogniser::setDoubleTapTimeout(int newtimeout)
-{
- m_doubleTapTimeout = newtimeout;
-}
-
-void CTapGestureRecogniser::enable(bool enabled)
-{
- m_gestureEnabled = enabled ;
-}
-
-bool CTapGestureRecogniser::isEnabled()
-{
- return m_gestureEnabled ;
-}
-
-void CTapGestureRecogniser::setDoubleTapRange(int rangeInMillimetres)
-{
- m_rangesizeInPixels = Mm2Pixels(rangeInMillimetres) ;
-}
-
-void CTapGestureRecogniser::ignoreFirstTap(bool ignore)
-{
- m_ignorefirst = ignore ;
-}
-
-/*!
- * Check whether the two taps are close enough to each other
- */
-bool CTapGestureRecogniser::isSecondTapClose(const TPoint& secondPoint, const TPoint& firstTapXY)
-{
- TRect tolerance = ToleranceRect(secondPoint, m_rangesizeInPixels) ;
- bool aretheyclose = tolerance.Contains(firstTapXY);
- return aretheyclose ;
-}
-
-void CTapGestureRecogniser::addTapListener(MGestureListener* aListener, CCoeControl* listenerOwner)
-{
- m_tapListeners.Append(aListener) ;
- m_tapListenerWindows.Append(listenerOwner) ;
-}
-
-void CTapGestureRecogniser::removeTapListener(MGestureListener* aListener,
- CCoeControl* /*listenerOwner*/)
-{
- TInt inx = m_tapListeners.Find(aListener) ;
- if(inx != KErrNotFound)
- {
- m_tapListeners.Remove(inx) ;
- m_tapListenerWindows.Remove(inx) ;
- }
-}
-
-void CTapGestureRecogniser::addDoubleTapListener(MGestureListener* aListener,
- CCoeControl* listenerOwner)
-{
- m_doubleTapListeners.Append(aListener) ;
- m_doubleTapListenerWindows.Append(listenerOwner) ;
-}
-
-void CTapGestureRecogniser::removeDoubleTapListener(MGestureListener* aListener,
- CCoeControl* /*listenerOwner*/)
-{
- TInt inx = m_doubleTapListeners.Find(aListener) ;
- if(inx != KErrNotFound)
- {
- m_doubleTapListeners.Remove(inx) ;
- m_doubleTapListenerWindows.Remove(inx) ;
- }
-}
-