// Copyright 1999, Be Incorporated. All Rights Reserved.
// Copyright 2000-2004, Jun Suzuki. All Rights Reserved.
// Copyright 2007, 2009 Stephan Aßmus. All Rights Reserved.
// This file may be used under the terms of the Be Sample Code License.


#include "MediaFileListView.h"

#include <new>

#include <Application.h>
#include <MediaFile.h>
#include <Messenger.h>

#include "MediaConverterWindow.h"
#include "MessageConstants.h"


// #pragma mark - MediaFileListItem


MediaFileListItem::MediaFileListItem(BMediaFile* file, const entry_ref& ref)
        :
        BStringItem(ref.name),
        fRef(ref),
        fMediaFile(file)
{
}


MediaFileListItem::~MediaFileListItem()
{
        delete fMediaFile;
}


// #pragma mark - MediaFileListView


MediaFileListView::MediaFileListView()
        :
        BListView("MediaFileListView", B_SINGLE_SELECTION_LIST, B_WILL_DRAW
                        | B_NAVIGABLE | B_FRAME_EVENTS)
{
        fEnabled = true;
}


MediaFileListView::~MediaFileListView()
{
        BListItem *item;
        while ((item = RemoveItem((int32)0)) != NULL) {
                delete item;
        }
}


void
MediaFileListView::SetEnabled(bool enabled)
{
        if (enabled == fEnabled)
                return;

        fEnabled = enabled;
        // TODO: visual indication of enabled status?
}


bool
MediaFileListView::IsEnabled() const
{
        return fEnabled;
}


bool
MediaFileListView::AddMediaItem(BMediaFile* file, const entry_ref& ref)
{
        MediaFileListItem* item = new(std::nothrow) MediaFileListItem(file, ref);
        if (item == NULL || !AddItem(item)) {
                delete item;
                return false;
        }
        be_app_messenger.SendMessage(FILE_LIST_CHANGE_MESSAGE);
        return true;
}


void
MediaFileListView::KeyDown(const char *bytes, int32 numBytes)
{
        switch (bytes[0]) {
                case B_DELETE:
                        if (IsEnabled()) {
                                int32 selection = CurrentSelection();
                                if (selection >= 0) {
                                        delete RemoveItem(selection);
                                        // select the previous item
                                        int32 count = CountItems();
                                        if (selection >= count)
                                                selection = count - 1;
                                        Select(selection);
                                        be_app_messenger.SendMessage(FILE_LIST_CHANGE_MESSAGE);
                                }
                        }
                        break;
                default:
                        BListView::KeyDown(bytes, numBytes);
                        break;
        }
}


void
MediaFileListView::SelectionChanged()
{
        MediaConverterWindow* win = dynamic_cast<MediaConverterWindow*>(Window());
        if (win != NULL)
                win->SourceFileSelectionChanged();
}