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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.photos;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.nfc.NfcAdapter;
import android.nfc.NfcAdapter.CreateBeamUrisCallback;
import android.nfc.NfcEvent;
import android.provider.MediaStore.Files.FileColumns;
import android.widget.ShareActionProvider;
import com.android.gallery3d.common.ApiHelper;
import com.android.gallery3d.data.MediaObject;
import com.android.gallery3d.util.GalleryUtils;
import java.util.ArrayList;
public class SelectionManager {
private Activity mActivity;
private NfcAdapter mNfcAdapter;
private SelectedUriSource mUriSource;
private Intent mShareIntent = new Intent();
public interface SelectedUriSource {
public ArrayList<Uri> getSelectedShareableUris();
}
public SelectionManager(Activity activity) {
mActivity = activity;
if (ApiHelper.AT_LEAST_16) {
mNfcAdapter = NfcAdapter.getDefaultAdapter(mActivity);
mNfcAdapter.setBeamPushUrisCallback(new CreateBeamUrisCallback() {
@Override
public Uri[] createBeamUris(NfcEvent arg0) {
// This will have been preceded by a call to onItemSelectedStateChange
if (mCachedShareableUris == null) return null;
return mCachedShareableUris.toArray(
new Uri[mCachedShareableUris.size()]);
}
}, mActivity);
}
}
public void setSelectedUriSource(SelectedUriSource source) {
mUriSource = source;
}
private int mSelectedTotalCount = 0;
private int mSelectedShareableCount = 0;
private int mSelectedShareableImageCount = 0;
private int mSelectedShareableVideoCount = 0;
private int mSelectedDeletableCount = 0;
private int mSelectedEditableCount = 0;
private int mSelectedCroppableCount = 0;
private int mSelectedSetableCount = 0;
private int mSelectedTrimmableCount = 0;
private int mSelectedMuteableCount = 0;
private ArrayList<Uri> mCachedShareableUris = null;
public void onItemSelectedStateChanged(ShareActionProvider share,
int itemType, int itemSupportedOperations, boolean selected) {
int increment = selected ? 1 : -1;
mSelectedTotalCount += increment;
mCachedShareableUris = null;
if ((itemSupportedOperations & MediaObject.SUPPORT_DELETE) > 0) {
mSelectedDeletableCount += increment;
}
if ((itemSupportedOperations & MediaObject.SUPPORT_EDIT) > 0) {
mSelectedEditableCount += increment;
}
if ((itemSupportedOperations & MediaObject.SUPPORT_CROP) > 0) {
mSelectedCroppableCount += increment;
}
if ((itemSupportedOperations & MediaObject.SUPPORT_SETAS) > 0) {
mSelectedSetableCount += increment;
}
if ((itemSupportedOperations & MediaObject.SUPPORT_TRIM) > 0) {
mSelectedTrimmableCount += increment;
}
if ((itemSupportedOperations & MediaObject.SUPPORT_MUTE) > 0) {
mSelectedMuteableCount += increment;
}
if ((itemSupportedOperations & MediaObject.SUPPORT_SHARE) > 0) {
mSelectedShareableCount += increment;
if (itemType == FileColumns.MEDIA_TYPE_IMAGE) {
mSelectedShareableImageCount += increment;
} else if (itemType == FileColumns.MEDIA_TYPE_VIDEO) {
mSelectedShareableVideoCount += increment;
}
}
mShareIntent.removeExtra(Intent.EXTRA_STREAM);
if (mSelectedShareableCount == 0) {
mShareIntent.setAction(null).setType(null);
} else if (mSelectedShareableCount >= 1) {
mCachedShareableUris = mUriSource.getSelectedShareableUris();
if (mCachedShareableUris.size() == 0) {
mShareIntent.setAction(null).setType(null);
} else {
if (mSelectedShareableImageCount == mSelectedShareableCount) {
mShareIntent.setType(GalleryUtils.MIME_TYPE_IMAGE);
} else if (mSelectedShareableVideoCount == mSelectedShareableCount) {
mShareIntent.setType(GalleryUtils.MIME_TYPE_VIDEO);
} else {
mShareIntent.setType(GalleryUtils.MIME_TYPE_ALL);
}
if (mCachedShareableUris.size() == 1) {
mShareIntent.setAction(Intent.ACTION_SEND);
mShareIntent.putExtra(Intent.EXTRA_STREAM, mCachedShareableUris.get(0));
} else {
mShareIntent.setAction(Intent.ACTION_SEND_MULTIPLE);
mShareIntent.putExtra(Intent.EXTRA_STREAM, mCachedShareableUris);
}
}
}
share.setShareIntent(mShareIntent);
}
public int getSupportedOperations() {
if (mSelectedTotalCount == 0) {
return 0;
}
int supported = 0;
if (mSelectedTotalCount == 1) {
if (mSelectedCroppableCount == 1) {
supported |= MediaObject.SUPPORT_CROP;
}
if (mSelectedEditableCount == 1) {
supported |= MediaObject.SUPPORT_EDIT;
}
if (mSelectedSetableCount == 1) {
supported |= MediaObject.SUPPORT_SETAS;
}
if (mSelectedTrimmableCount == 1) {
supported |= MediaObject.SUPPORT_TRIM;
}
if (mSelectedMuteableCount == 1) {
supported |= MediaObject.SUPPORT_MUTE;
}
}
if (mSelectedDeletableCount == mSelectedTotalCount) {
supported |= MediaObject.SUPPORT_DELETE;
}
if (mSelectedShareableCount > 0) {
supported |= MediaObject.SUPPORT_SHARE;
}
return supported;
}
public void onClearSelection() {
mSelectedTotalCount = 0;
mSelectedShareableCount = 0;
mSelectedShareableImageCount = 0;
mSelectedShareableVideoCount = 0;
mSelectedDeletableCount = 0;
mSelectedEditableCount = 0;
mSelectedCroppableCount = 0;
mSelectedSetableCount = 0;
mSelectedTrimmableCount = 0;
mSelectedMuteableCount = 0;
mCachedShareableUris = null;
mShareIntent.removeExtra(Intent.EXTRA_STREAM);
mShareIntent.setAction(null).setType(null);
}
}
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