javaextensions/pim/agnadapter/src.s60/cpimtodoadaptermanager.cpp
branchRCL_3
changeset 19 04becd199f91
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javaextensions/pim/agnadapter/src.s60/cpimtodoadaptermanager.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,420 @@
+/*
+* 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 "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:  Provides static information about todo lists and creates
+ *                todo list adapters.
+ *
+*/
+
+
+// CLASS HEADER
+#include "cpimtodoadaptermanager.h"
+
+// INTERNAL INCLUDES
+#include "mpimitem.h"
+#include "cpimtodolistadapter.h"
+#include "pimlocalizationids.h"
+#include "logger.h"
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::CPIMToDoAdapterManager
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CPIMToDoAdapterManager::CPIMToDoAdapterManager()
+{
+    JELOG2(EPim);
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CPIMToDoAdapterManager::ConstructL(const TDesC& aListName)
+{
+    JELOG2(EPim);
+    iListName = aListName.AllocL();
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CPIMToDoAdapterManager* CPIMToDoAdapterManager::NewL(const TDesC& aListName)
+{
+    JELOG2(EPim);
+    CPIMToDoAdapterManager* self = new(ELeave) CPIMToDoAdapterManager;
+
+    CleanupStack::PushL(self);
+    self->ConstructL(aListName);
+    CleanupStack::Pop(self);
+
+    return self;
+}
+
+// Destructor
+CPIMToDoAdapterManager::~CPIMToDoAdapterManager()
+{
+    JELOG2(EPim);
+    delete iSupportedToDoFields;
+    delete iEmptyToDoAttributeArray;
+    delete iListName;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::GetAdapterManager
+// Provides access to the MPIMAdapterManager representation of this object.
+// Returns: MPIMAdapterManager representation of this object.
+// -----------------------------------------------------------------------------
+MPIMAdapterManager* CPIMToDoAdapterManager::GetAdapterManager()
+{
+    JELOG2(EPim);
+    return this;
+}
+
+const TDesC& CPIMToDoAdapterManager::ListNameL()
+{
+    JELOG2(EPim);
+    return *iListName;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::MaxCategories
+// Returns: The maximum number of categories that this list can have.
+//          0 indicates no category support,
+//         -1 indicates there is no limit on the number of categories that this
+//            list can have
+// -----------------------------------------------------------------------------
+//
+
+TInt CPIMToDoAdapterManager::MaxCategories()
+{
+    JELOG2(EPim);
+    return 0;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::IsSupportedField
+// Returns: ETrue if supported in this list, EFalse otherwise. Invalid fields
+//          return false.
+// -----------------------------------------------------------------------------
+//
+
+TBool CPIMToDoAdapterManager::IsSupportedField(TPIMField aField)
+{
+    JELOG2(EPim);
+    for (TInt index = 0; index < KPIMSupportedToDoFieldsCount; index++)
+    {
+        if (aField == KPIMSupportedToDoFields[index])
+        {
+            return ETrue;
+        }
+    }
+    return EFalse;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::GetSupportedFieldsL
+// Returns: An int array containing all fields supported by this list.
+// -----------------------------------------------------------------------------
+//
+
+const CArrayFix<TPIMField>& CPIMToDoAdapterManager::GetSupportedFieldsL()
+{
+    JELOG2(EPim);
+    if (!iSupportedToDoFields)
+    {
+        iSupportedToDoFields
+        = new(ELeave) CArrayFixFlat<TPIMField> (KPIMSupportedToDoFieldsCount);  // codescanner::leave
+
+        iSupportedToDoFields->AppendL(KPIMSupportedToDoFields, // codescanner::leave
+                                      KPIMSupportedToDoFieldsCount);
+    }
+    return *iSupportedToDoFields;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::IsSupportedAttribute
+// Returns: EFalse for every other attribute than KPIMAttrNone
+// -----------------------------------------------------------------------------
+//
+
+TBool CPIMToDoAdapterManager::IsSupportedAttribute(TPIMField /* aField */,
+        TPIMAttribute /* aAttribute */)
+{
+    JELOG2(EPim);
+    return EFalse; // No attributes supported
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::GetSupportedAttributesL
+// Returns: An empty array meaning no supported attributes.
+// -----------------------------------------------------------------------------
+//
+
+const CArrayFix<TPIMAttribute>&
+CPIMToDoAdapterManager::GetSupportedAttributesL(TPIMField aField)
+{
+    JELOG2(EPim);
+    if (!IsSupportedField(aField))
+    {
+        User::Leave(KErrArgument);
+    }
+
+    if (!iEmptyToDoAttributeArray)
+    {
+        iEmptyToDoAttributeArray
+        = new(ELeave) CArrayFixFlat<TPIMAttribute> (1);
+    }
+    return *iEmptyToDoAttributeArray;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::GetSupportedAttributesCombinedL
+// Returns: KPIMAttrNone meaning no supported attributes.
+// -----------------------------------------------------------------------------
+//
+
+TPIMAttribute CPIMToDoAdapterManager::GetSupportedAttributesCombinedL(
+    TPIMField aField) // The field to check the supported attributes from
+{
+    JELOG2(EPim);
+    if (!IsSupportedField(aField))
+    {
+        User::Leave(KErrArgument); // Field was not a valid field
+    }
+    return KPIMAttrNone;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::GetAllSupportedAttributesCombined
+// Returns: KPIMAttrNone meaning no supported attributes.
+// -----------------------------------------------------------------------------
+//
+
+TPIMAttribute CPIMToDoAdapterManager::GetAllSupportedAttributesCombined()
+{
+    JELOG2(EPim);
+    return KPIMAttrNone;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::IsSupportedArrayElement
+// Returns: EFalse, as there are no supported array elements in ToDo list.
+// -----------------------------------------------------------------------------
+//
+
+TBool CPIMToDoAdapterManager::IsSupportedArrayElement(
+    TPIMField /* aStringArrayField */, TPIMArrayElement /* aArrayElement */)
+{
+    JELOG2(EPim);
+    return EFalse; // No attributes supported
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::GetSupportedArrayElementsL
+// Returns: An integer array containing all of the supported elements of a
+//          string array for the given field.
+// -----------------------------------------------------------------------------
+//
+
+const CArrayFix<TPIMArrayElement>&
+CPIMToDoAdapterManager::GetSupportedArrayElementsL(TPIMField /* aField */) // The field to check for supported array elements
+{
+    JELOG2(EPim);
+    User::Leave(KErrArgument); // No array elements in ToDo list.
+
+    // satisfy the compiler
+    const CArrayFix<TPIMArrayElement>* temp = NULL;
+    return *temp;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::MaxValues
+// Returns: Number of values supported for the field
+//          -1 : The field supports having an unlimited number of values in it.
+//           0 : The field is not supported by this list.
+// -----------------------------------------------------------------------------
+//
+
+TInt CPIMToDoAdapterManager::MaxValues(TPIMField aField) // The field to check for multiple value support
+{
+    JELOG2(EPim);
+    if (IsSupportedField(aField))
+    {
+        return 1; // Only one value is supported for any valid ToDo field
+    }
+    else
+    {
+        return 0;
+    }
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::StringArraySizeL
+// Returns: Int the size of the array of a single data instance of a string
+//          array field.
+// -----------------------------------------------------------------------------
+//
+
+TInt CPIMToDoAdapterManager::StringArraySizeL(TPIMField /* aStringArrayField */)
+{
+    JELOG2(EPim);
+    User::Leave(KErrArgument); // no string array fields
+
+    // satisfy the compiler
+    return 0;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::ItemOrder
+// Returns: pointer to a function which implements an algorithm that
+//          determines the order of two items.
+// -----------------------------------------------------------------------------
+//
+
+TPIMItemComparisonFunc CPIMToDoAdapterManager::ItemOrder()
+{
+    JELOG2(EPim);
+    return ItemComparisonFunc;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::ItemComparisonFuncL
+// Compares two MPIMItemData objects. The comparision is based primarily on the
+// completion of the item, secondly on the due date of the item, and thirdly
+// on the priority of the item.
+// Returns: < 0: aFirst < aSecond
+//          0: aFirst == aSecond
+//          > 0: aFirst > aSecond
+// -----------------------------------------------------------------------------
+//
+TInt CPIMToDoAdapterManager::ItemComparisonFunc(const MPIMItem& aFirst,
+        const MPIMItem& aSecond)
+{
+    JELOG2(EPim);
+    TInt retVal = 0;
+    TRAPD(err, retVal = ItemComparisonFuncL(aFirst, aSecond));
+    if (err != KErrNone)
+    {
+        // The comparison function does not actually leave as it is used with
+        // correct PIM field parameters, so this assert here is just for debug
+        __ASSERT_DEBUG(EFalse, User::Panic(KPIMPanicCategory, EPIMPanicGeneral));
+    }
+    return retVal;
+}
+
+// -----------------------------------------------------------------------------
+// CPIMToDoAdapterManager::ItemComparisonFuncL
+// Compares two MPIMItemData objects. The comparision is based primarily on the
+// completion of the item, secondly on the due date of the item, and thirdly
+// on the priority of the item.
+// Returns: < 0: aFirst < aSecond
+//          0: aFirst == aSecond
+//          > 0: aFirst > aSecond
+// -----------------------------------------------------------------------------
+//
+TInt CPIMToDoAdapterManager::ItemComparisonFuncL(const MPIMItem& aFirst,
+        const MPIMItem& aSecond)
+{
+    JELOG2(EPim);
+    TInt firstPresent = aFirst.CountValuesL(EPIMToDoCompleted);
+    TInt secondPresent = aSecond.CountValuesL(EPIMToDoCompleted);
+
+    if ((firstPresent == 0) ^(secondPresent == 0))
+        // Only one of the fields is present
+    {
+        return firstPresent - secondPresent;
+    }
+
+    else if (firstPresent > 0 && secondPresent > 0)
+        // Both fields are present
+    {
+        TBool completedFirst = aFirst.GetBooleanL(EPIMToDoCompleted, 0);
+        TBool completedSecond = aSecond.GetBooleanL(EPIMToDoCompleted, 0);
+
+        if (!completedFirst && completedSecond)
+        {
+            return 1;
+        }
+        else if (completedFirst && !completedSecond)
+        {
+            return -1;
+        }
+    }
+
+    // In this point either none of the items have the completed field,
+    // or both of the items have the field and also have the same value in it.
+    // Continue the comparision based on the 2nd criteria, the due date field.
+    firstPresent = aFirst.CountValuesL(EPIMToDoDue);
+    secondPresent = aSecond.CountValuesL(EPIMToDoDue);
+
+    if ((firstPresent == 0) ^(secondPresent == 0))  // xor
+        // Only one of the fields is present
+    {
+        return secondPresent - firstPresent;
+    }
+
+    else if (firstPresent > 0 && secondPresent > 0)
+        // Both fields are present
+    {
+        const TPIMDate dateFirst = aFirst.GetDateL(EPIMToDoDue, 0);
+        const TPIMDate dateSecond = aSecond.GetDateL(EPIMToDoDue, 0);
+
+        if (dateFirst < dateSecond)
+        {
+            return -1;
+        }
+        else if (dateFirst > dateSecond)
+        {
+            return 1;
+        }
+    }
+
+    // In this point either none of the items have due date field, or
+    // the other possibility is that the due date fields are exactly equal.
+    // Continue the comparision based on the 3rd criteria, the priority field.
+    firstPresent = aFirst.CountValuesL(EPIMToDoPriority);
+    secondPresent = aSecond.CountValuesL(EPIMToDoPriority);
+
+    if ((firstPresent == 0) ^(secondPresent == 0))  // xor
+        // Only one of the fields is present
+    {
+        return secondPresent - firstPresent;
+    }
+
+    else if (firstPresent > 0 && secondPresent > 0)
+        // Both fields are present
+    {
+        TInt priorityFirst = aFirst.getInt(EPIMToDoPriority, 0);
+        TInt prioritySecond = aSecond.getInt(EPIMToDoPriority, 0);
+        if (priorityFirst < prioritySecond)
+        {
+            return -1;
+        }
+        if (priorityFirst > prioritySecond)
+        {
+            return 1;
+        }
+        // The third option is that the priorities are equal as well : return 0
+        return 0;
+    }
+
+    // If all 3 comparision fields are missing in both items, they are equal
+    return 0;
+}
+
+//  End of File