classicui_plat/common_file_dialogs_api/inc/CAknMemorySelectionDialog.h
changeset 46 0e1e0022bd03
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/classicui_plat/common_file_dialogs_api/inc/CAknMemorySelectionDialog.h	Thu Jul 29 14:21:56 2010 +0800
@@ -0,0 +1,371 @@
+/*
+* Copyright (c) 2002-2007 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:  Dialog used to selection target memory.
+*
+*/
+
+
+#ifndef C_AKNMEMORYSELECTIONDIALOG_H
+#define C_AKNMEMORYSELECTIONDIALOG_H
+
+#include <CAknCommonDialogsBase.h>
+#include <badesca.h> // CDesCArray
+
+class CAknMemorySelectionModel;
+class CAknMemorySelectionEventHandler;
+class MAknMemorySelectionObserver;
+class TDriveInfo;
+class CAknIconArray;
+
+/**
+ *  A class that launches a pop-up dialog for memory selection.
+ *
+ *  @lib CommonDialogs.lib
+ *  @since S60 1.2
+ */
+NONSHARABLE_CLASS(CAknMemorySelectionDialog) : public CAknCommonDialogsBase
+    {
+
+public:
+
+// Enumerations
+    /**
+     * @Deprecated: This only works with fixed C: and E: drives.
+     * Enumerations for memory items in listbox .
+     */
+    enum TMemory
+        {
+        EPhoneMemory = 0,   // C:
+        EMemoryCard,        // E:
+        EMemoryCount        // must remain last one
+        };
+
+// Constructors and destructors
+
+    /**
+     * Static constructor.
+     *
+     * @since S60 3.2
+     * @param aDialogType Defines the type of the dialog in order to read
+     *        correct default settings for title and softkeys from resource.
+     * @param aShowUnavailableDrives Defines whether unavailable or corrupted
+     *        drives are shown in memory selection list or not.
+     * @return Returns a pointer to an instance of itself.
+     */
+    IMPORT_C static CAknMemorySelectionDialog* NewL(
+        TCommonDialogType aDialogType,
+        TBool aShowUnavailableDrives );
+
+
+    /**
+     * Static constructor.
+     *
+     * @since S60 3.2
+     * @param aDialogType Defines the type of the dialog in order to read
+     *        correct default settings for title and softkeys from resource.
+     * @param aResourceId A resource id (MEMORYSELECTIONDIALOG).
+     * @param aShowUnavailableDrives Defines whether unavailable or corrupted
+     *        drives are shown in memory selection list or not.
+     * @return Returns a pointer to an instance of itself.
+     */
+    IMPORT_C static CAknMemorySelectionDialog* NewL(
+        TCommonDialogType aDialogType,
+        TInt aResourceId,
+        TBool aShowUnavailableDrives );
+
+    /**
+     * Static constructor.
+     *
+     * @since S60 3.2
+     * @param aDialogType Defines the type of the dialog in order to read
+     *        correct default settings for title and softkeys from resource.
+     * @param aResourceId A resource id (MEMORYSELECTIONDIALOG).
+     * @param aShowUnavailableDrives Defines whether unavailable or corrupted
+     *        drives are shown in memory selection list or not.
+     * @param aIncludedMedias bit flag definition of which medias are
+     *        included in the dialog. See TMemoryTypes.
+     * @return Returns a pointer to an instance of itself.
+     */
+    IMPORT_C static CAknMemorySelectionDialog* NewL(
+        TCommonDialogType aDialogType,
+        TInt aResourceId,
+        TBool aShowUnavailableDrives,
+        TInt aIncludedMedias );
+
+    IMPORT_C virtual ~CAknMemorySelectionDialog();
+
+// New functions
+
+    /**
+     * Sets an observer which is asked if the selected item can be selected.
+     *
+     * @param aObserver A pointer to an observer.
+     */
+    IMPORT_C void SetObserver( MAknMemorySelectionObserver* aObserver );
+
+    /**
+     * Sets title for the dialog.
+     *
+     * @param aText Title text.
+     */
+    IMPORT_C void SetTitleL( const TDesC& aText );
+
+    /**
+     * Sets the text used for left softkey.
+     *
+     * @param aText The text used for left softkey.
+     */
+    IMPORT_C void SetLeftSoftkeyL( const TDesC& aText );
+
+    /**
+     * Sets the text used for right softkey.
+     *
+     * @param aText The text used for right softkey.
+     */
+    IMPORT_C void SetRightSoftkeyL( const TDesC& aText );
+
+    /**
+     * Gets an item from memory selection dialog at specified index.
+     *
+     * @param aIndex Index to the item in the memory selection list.
+     * @param aItem A reference to a descriptor where the item is stored.
+     */
+    IMPORT_C void GetItem( TInt aIndex, TDes& aItem );
+
+    /**
+     * Gets the location paths of a memory.
+     *
+     * @param aSelectedMemory The memory that was selected.
+     * @param aRootPath A pointer to a descriptor where the root path
+     *        of the selected memory is stored. Must have KMaxFileName space.
+     *        Set to NULL to ignore.
+     * @param aDefaultFolder A pointer to a descriptor where the default folder
+     *        of the selected memory is stored. Must have KMaxFileName space.
+     *        Set to NULL to ignore.
+     */
+    IMPORT_C void GetMemories( TMemory aSelectedMemory,
+                               TDes* aRootPath,
+                               TDes* aDefaultFolder );
+
+    /**
+     * Executes the memory selection dialog. Virtual to allow derivation.
+     *
+     * @param aSelectedMemory A reference to a memory (TMemory).
+     *        If one of the memories is selected, the selected memory is
+     *        stored to the parameter.
+     * @return Returns true if user has selected an item and false
+     *         if user hits cancel.
+     */
+    IMPORT_C virtual TReturnKey ExecuteL( TMemory& aSelectedMemory );
+
+    /**
+     * Executes the memory selection dialog. Virtual to allow derivation.
+     *
+     * @param aSelectedMemory A reference to a memory (TMemory).
+     *        If one of the memories is selected, the selected memory is
+     *        stored to the parameter.
+     * @param aRootPath A pointer to a descriptor where the root path
+     *        of the selected memory is stored.
+     * @param aDefaultFolder A pointer to a descriptor where the default folder
+     *        of the selected memory is stored.
+     * @return Returns true if user has selected an item and false
+     *         if user hits cancel.
+     */
+    IMPORT_C virtual TReturnKey ExecuteL(
+        TMemory& aSelectedMemory,
+        TDes* aRootPath, TDes* aDefaultFolder );
+
+    /**
+     * A static method that launches a memory selection dialog.
+     * @see RunL()
+     */
+    IMPORT_C static TBool RunDlgLD(
+        TMemory& aSelectedMemory,
+        MAknMemorySelectionObserver* aObserver = NULL );
+
+    /**
+     * A static method that launches a memory selection dialog.
+     * @see RunL()
+     */
+    IMPORT_C static TBool RunDlgLD(
+        TMemory& aSelectedMemory,
+        const TDesC& aTitle,
+        MAknMemorySelectionObserver* aObserver = NULL );
+
+    /**
+     * A static method that launches a memory selection dialog.
+     * @see RunL()
+     */
+    IMPORT_C static TBool RunDlgLD(
+        TMemory& aSelectedMemory,
+        TInt aResourceId,
+        TDes* aRootPath = NULL, TDes* aDefaultFolder = NULL,
+        MAknMemorySelectionObserver* aObserver = NULL );
+
+    /**
+     * Returns the number of items in list box array.
+     * Not exported, for CFD internal use only.
+     *
+     * @return Returns the number of items in list box array.
+     */
+    TInt NumberOfItems() const;
+
+    /**
+     * Maps drive paths according to selected listbox item. This function is
+     * valid for dynamic drives. The prerequisite for this function is that
+     * iRootPathArray and additionally iDefaultFolderArray indexes map
+     * correctly to iModel's listbox items.
+     *
+     * @since S60 3.2
+     * @param aLbxIndex Index to the selected listbox item.
+     * @param aRootPath A pointer to a descriptor where the root path of the
+     *        selected drive will be stored. Must have KMaxFileName space.
+     *        Set to NULL to ignore.
+     * @param aDefaultFolder A pointer to a descriptor where the default folder
+     *        of the selected drive will be stored. Must have
+     *        KMaxFileNamespace.
+     *        Set to NULL to ignore.
+     * @return Return error code
+     *         KErrNone The drive is found in internal drive list
+     *         KErrNotFound The drive is not visible to user or does not exist
+     */
+    TInt GetDrivePaths( TInt aLbxIndex,
+                        TDes* aRootPath,
+                        TDes* aDefaultFolder );
+
+protected:
+
+// Constructors and destructors
+
+    CAknMemorySelectionDialog( TCommonDialogType aDialogType );
+
+    /**
+     * Constructs class from resource
+     *
+     * @param aResourceId ID of the resource. Can be zero.
+     * @param aShowUnavailableDrives Defines whether unavailable or corrupted
+     *        drives are shown in memory selection list or not.
+     */
+    virtual void ConstructFromResourceL(
+        TInt aResourceId,
+        TBool aShowUnavailableDrives );
+
+    /**
+     * Constructs class from resource
+     *
+     * @param aResourceId ID of the resource. Can be zero.
+     * @param aShowUnavailableDrives Defines whether unavailable or corrupted
+     *        drives are shown in memory selection list or not.
+     * @param aIncludedMedias bit flag definition of which medias are
+     *        included in the dialog. See TMemoryTypes.
+     */
+    virtual void ConstructFromResourceL(
+        TInt aResourceId,
+        TBool aShowUnavailableDrives,
+        TInt aIncludedMedias );
+
+private:
+
+//  New functions
+
+    /**
+     * A static method for launching a memory selection dialog.
+     * Creates, constructs, runs and deletes a memory selection dialog with
+     * different parameters.
+     *
+     * @param aResourceId An id of a resource.
+     * @param aSelectedMemory A reference to a memory described in ExecuteL.
+     * @param aRootPath A pointer to a descriptor where the root path
+     *        of the selected memory is stored.
+     * @param aDefaultFolder A pointer to a descriptor where the default folder
+     *        of the selected memory is stored.
+     * @param aTitle A title for memory selection dialog.
+     * @param aObserver An observer which is asked if the selected item
+     *        can be selected. Implemented in application..
+     */
+    static TBool RunL(
+        TInt aResourceId,
+        TMemory& aSelectedMemory,
+        TDes* aRootPath,
+        TDes* aDefaultFolder,
+        const TDesC& aTitle,
+        MAknMemorySelectionObserver* aObserver );
+
+
+    /**
+     * Sets id to a default CFD resource depending on dialog type.
+     */
+    void SetResourceId( TInt& aResourceId, TCommonDialogType aDialogType )
+        const;
+
+    /**
+     * Reads settings from resource.
+     *
+     * @param aResourceId Resource's ID to be read.
+     * @param aResourceDefined If user defines the resource.
+     */
+    void ReadFromResourceL( TInt aResourceId, TBool aResourceDefined );
+
+    /**
+     * Loads icons into the icon-array.
+     * @param aIconArray Array of which to append the loaded icons.
+     * @param aDoubleStyle Is the dialog doublestyle.
+     */
+    void LoadIconsL( CAknIconArray* aIconArray, TBool aDoubleStyle );
+
+    /**
+     * Loads default root and default paths of phone memory & memory card
+     */
+    void GetSystemPathsL();
+
+protected: // Data
+
+    // Own: Dialog type
+    TCommonDialogType iDialogType;
+
+    // Own: Model
+    CAknMemorySelectionModel* iModel;
+
+    // Own: Event handler
+    CAknMemorySelectionEventHandler* iEventHandler;
+
+    // Ref: Observer
+    MAknMemorySelectionObserver* iObserver;
+
+    // Own: Title
+    HBufC* iTitle;
+
+    // Own: Left softkey text
+    HBufC* iLeftSoftkey;
+
+    // Own: Right softkey text
+    HBufC* iRightSoftkey;
+
+    // Own: Root path array
+    // iDynamicDrivesEnabled indicates the content of this array.
+    CDesCArrayFlat iRootPathArray;
+
+    // Own: Default folder array
+    CDesCArrayFlat iDefaultFolderArray;
+
+    // Own: ETrue if dynamic drive reading is enabled
+    //      EFalse if drives are static (C: and E:).
+    // This affects iRootPathArray and iDefaultFolderArray content and
+    // ordering.
+    TBool iDynamicDrivesEnabled;
+
+    TInt iIncludedMedias;
+    };
+
+#endif // C_AKNMEMORYSELECTIONDIALOG_H