widgetmodel/alfwidgetmodel/src/alfeventinput.cpp
changeset 0 e83bab7cf002
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgetmodel/alfwidgetmodel/src/alfeventinput.cpp	Thu Dec 17 08:56:02 2009 +0200
@@ -0,0 +1,304 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:   File Implements the various input events, including custom events.
+*
+*/
+
+
+#include <alf/alfenv.h>
+#include <alf/alfevent.h>
+#include <alf/alfvisual.h>
+#include <osn/osncommon.h>
+#include "alf/alfreferencetovisual.h"
+#include <alf/alfexceptions.h>
+#include "alf/alfattribute.h"
+#include "alf/alfwidget.h"
+#include "alf/ialfattributeowner.h"
+#include <alf/alfwidgetevents.h>
+#include <alf/alfwidgetcommand.h>
+#include "alfeventinput.h"
+
+namespace Alf
+    {
+
+
+// ======== LOCAL FUNCTIONS ========
+
+// ======== MEMBER FUNCTIONS ========
+
+AlfEventInput::AlfEventInput(int aEvtTypeFlags,int aEventID,int aEventData, int aKeyEventModifiers)
+    {
+    mEventTypeFlags = aEvtTypeFlags;
+    mEventID = aEventID;
+    mEventData = aEventData;
+    mKeyEventModifiers = aKeyEventModifiers;
+    }
+
+// ---------------------------------------------------------------------------
+// ?implementation_description
+// ---------------------------------------------------------------------------
+//
+bool AlfEventInput::accept( const TAlfEvent& aEvent ) const
+    {
+    bool ret = false;
+
+	// Custom event
+    if ( aEvent.Type() == TAlfEvent::ETypeCustom &&
+            ( mEventTypeFlags & custom ) &&
+            aEvent.CustomParameter() == mEventID )
+        {
+        // If event data is defined to be used, it must match also
+        if ( ( mEventTypeFlags & useEventData ) == 0 ||
+                aEvent.CustomEventData() == mEventData )
+            {
+            ret = true;
+            }
+        }
+    // Key event
+    else if( aEvent.Type() == TAlfEvent::ETypeKey &&
+              ( mEventTypeFlags & custom ) == 0 &&
+    		   aEvent.KeyEvent().iScanCode == mEventID )
+        {
+        // Test that key event up/down matches
+        
+        // keyDown triggers from EEventKey event.
+        // keyUp triggers from EEventKeyUp event.
+        
+        if ( ( mEventTypeFlags & keyDown &&
+               aEvent.Code() == EEventKey ) ||
+             ( mEventTypeFlags & keyUp &&
+               aEvent.Code() == EEventKeyUp ) )
+        	{
+        	// Set trigger status true first, match checks will change it to false if no match.
+        	ret = true;
+
+            // If no modifiers requested, no need to check anything
+            if ( mKeyEventModifiers )
+                {                
+            	uint receivedModifiers = aEvent.KeyEvent().iModifiers;
+            	
+            	while ( true )
+            	    {
+                	if ( mKeyEventModifiers & alt )
+                	    {
+            	        if ( !(receivedModifiers & (eventBitLeftAlt|eventBitRightAlt|eventBitAlt)) )
+            	            {
+            	            ret = false;
+            	            break;
+            	            }
+               	        }
+                	if ( mKeyEventModifiers & ctrl )
+            	        {
+            	        if ( !(receivedModifiers & (eventBitLeftCtrl|eventBitRightCtrl|eventBitCtrl)) )
+            	            {
+            	            ret = false;
+            	            break;
+            	            }        	        
+            	        }
+                	if ( mKeyEventModifiers & shift )
+                	    {
+            	        if ( !(receivedModifiers & (eventBitLeftShift|eventBitRightShift|eventBitShift)) )
+            	            {
+                	        ret = false;
+                	        break;
+                	        }        	        
+                	    }
+                	if ( mKeyEventModifiers & func )
+                	    {
+            	        if ( !(receivedModifiers & (eventBitLeftFunc|eventBitRightFunc|eventBitFunc)) )
+            	            {
+                	        ret = false;
+                	        break;
+                	        }        	    
+                	    }
+                	    
+                	break;
+            	    }
+                	    
+               	if ( mKeyEventModifiers & capsLock && !(receivedModifiers & eventBitCapsLock) )
+               	    {
+               	    ret = false;
+               	    }
+               	    
+               	if ( mKeyEventModifiers & numLock && !(receivedModifiers & eventBitNumLock) )
+               	    {
+               	    ret = false;
+               	    }
+               	    
+               	if ( mKeyEventModifiers & scrollLock && !(receivedModifiers & eventBitScrollLock) )
+               	    {
+               	    ret = false;
+               	    }
+                }
+        	}
+        }
+
+    return ret;
+    }
+
+// ---------------------------------------------------------------------------
+// ?description_if_needed
+// ---------------------------------------------------------------------------
+//
+AlfPointerEventInput::AlfPointerEventInput()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// ?description_if_needed
+// ---------------------------------------------------------------------------
+//
+AlfPointerEventInput::AlfPointerEventInput( const char* aElementName, 
+                                            const char* aVisualName,
+                                            WidgetPointerEvent aEvent )
+    {
+    mVisualRef.reset(AlfReferenceToVisual::create(aElementName, aVisualName, true ));
+    mEvent = aEvent;
+    }
+
+// ---------------------------------------------------------------------------
+// ?description_if_needed
+// ---------------------------------------------------------------------------
+//
+AlfPointerEventInput::~AlfPointerEventInput()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// ?implementation_description
+// ---------------------------------------------------------------------------
+//
+bool AlfPointerEventInput::accept(
+    CAlfWidgetControl& aControl, const TAlfEvent& aEvent ) const
+    {
+    // Check whether the tapped visual matches with element and visual names
+    // of this pointer event input.
+    bool ret = false;
+
+    // map OSN pointer event to TPointerEvent::TType
+    TPointerEvent::TType eventType = TPointerEvent::EButton1Down;
+    switch (mEvent)
+        {
+        case pointerEventDown:
+            eventType = TPointerEvent::EButton1Down;
+            break;
+        case pointerEventUp:
+            eventType = TPointerEvent::EButton1Up;
+            break;
+        case pointerEventDrag:
+            eventType = TPointerEvent::EDrag;
+            break;
+        default:
+            break;
+        }
+    
+    ret = aEvent.IsPointerEvent() && 
+          (eventType == aEvent.PointerEvent().iType) && 
+          mVisualRef->resolve( aControl, aEvent.Visual());
+
+    return ret;
+    }
+// ---------------------------------------------------------------------------
+// Class AlfWidgetAttributeInput
+// ---------------------------------------------------------------------------
+//
+AlfWidgetAttributeInput::AlfWidgetAttributeInput( AlfAttribute& aAttribute,
+	    const char* aElementId )
+	    {
+	    mAttr = &aAttribute;
+	    mElementId = "";
+	    if (aElementId)   
+	        {
+	        mElementId = aElementId;
+	        }
+	    }
+
+AlfWidgetAttributeInput::AlfWidgetAttributeInput()
+    {
+    }
+
+AlfWidgetAttributeInput::~AlfWidgetAttributeInput()
+    {
+    delete mAttr;
+    }
+    
+bool AlfWidgetAttributeInput::accept(const TAlfEvent& aEvent) const
+    {
+    bool accept(false);
+    
+    if (aEvent.IsCustomEvent())
+        {
+        unsigned int eventID = aEvent.CustomParameter(); 
+        if (eventID == EEventWidgetAttributeChanged)
+            {
+            TAlfWidgetAttributeCommand* command = 
+                (TAlfWidgetAttributeCommand*)aEvent.CustomEventData();
+            AlfAttribute* attribute = command->mOwnedAttribute;
+            const char* name = attribute->name();
+            const char* targetelement = command->mTarget.getUtf8();
+                        
+            accept = true;
+            if (!mElementId.isEmpty() && targetelement)
+            	{
+	            if ( strcmp(mElementId.getUtf8(), targetelement) )
+	                {
+	                accept = false;
+	                }
+            	}
+            
+            if (accept)
+            	{
+            	accept= false;
+	            if (!strcmp(mAttr->name(), name))
+	                {
+	                accept = true;
+	                }
+            	}
+            }
+        }
+    
+    return accept;
+    }    
+// ---------------------------------------------------------------------------
+// Class AlfEventPasserInput
+// ---------------------------------------------------------------------------
+//
+// AlfEventInput could be used instead of this class, it contains all the same
+// functionality! 
+//
+AlfEventPasserInput::AlfEventPasserInput( int aEventId, int aEventData  )
+    {
+    mEventId = aEventId;
+    mEventData = aEventData;//not used yet...
+    }
+
+AlfEventPasserInput::AlfEventPasserInput()
+    {
+    }
+
+AlfEventPasserInput::~AlfEventPasserInput()
+    {
+    }
+    
+bool AlfEventPasserInput::accept( const TAlfEvent& aEvent ) const
+    {
+    // check whether the event matches to the one we need to pass to another widget
+
+    return aEvent.IsCustomEvent() &&
+        aEvent.CustomParameter() == mEventId;    
+    }    
+        
+    }//Alf
+
+// End of File.