| /* |
| * 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.documentsui; |
| |
| import static com.android.documentsui.DirectoryFragment.getCursorString; |
| |
| import android.app.ActionBar; |
| import android.app.ActionBar.OnNavigationListener; |
| import android.app.Activity; |
| import android.app.FragmentManager; |
| import android.app.FragmentManager.BackStackEntry; |
| import android.app.FragmentManager.OnBackStackChangedListener; |
| import android.content.ClipData; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ProviderInfo; |
| import android.content.pm.ResolveInfo; |
| import android.database.Cursor; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.provider.DocumentsContract; |
| import android.provider.DocumentsContract.DocumentColumns; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.BaseAdapter; |
| import android.widget.TextView; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| public class DocumentsActivity extends Activity { |
| private static final String TAG = "Documents"; |
| |
| // TODO: fragment to show recently opened documents |
| // TODO: pull actionbar icon from current backend |
| |
| private static final int ACTION_OPEN = 1; |
| private static final int ACTION_CREATE = 2; |
| |
| private int mAction; |
| private String[] mAcceptMimes; |
| |
| private final DisplayState mDisplayState = new DisplayState(); |
| |
| private boolean mIgnoreNextNavigation; |
| |
| private Uri mCurrentDir; |
| private boolean mCurrentSupportsCreate; |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| |
| final Intent intent = getIntent(); |
| final String action = intent.getAction(); |
| if (Intent.ACTION_OPEN_DOCUMENT.equals(action)) { |
| mAction = ACTION_OPEN; |
| mDisplayState.allowMultiple = intent.getBooleanExtra(Intent.EXTRA_ALLOW_MULTIPLE, false); |
| } else if (Intent.ACTION_CREATE_DOCUMENT.equals(action)) { |
| mAction = ACTION_CREATE; |
| mDisplayState.allowMultiple = false; |
| } |
| |
| if (intent.hasExtra(Intent.EXTRA_MIME_TYPES)) { |
| mAcceptMimes = intent.getStringArrayExtra(Intent.EXTRA_MIME_TYPES); |
| } else { |
| mAcceptMimes = new String[] { intent.getType() }; |
| } |
| |
| if (mimeMatches("image/*", mAcceptMimes)) { |
| mDisplayState.mode = DisplayState.MODE_GRID; |
| } else { |
| mDisplayState.mode = DisplayState.MODE_LIST; |
| } |
| |
| setResult(Activity.RESULT_CANCELED); |
| setContentView(R.layout.activity); |
| |
| getFragmentManager().addOnBackStackChangedListener(mStackListener); |
| BackendFragment.show(getFragmentManager()); |
| |
| updateActionBar(); |
| |
| if (mAction == ACTION_CREATE) { |
| final String mimeType = getIntent().getType(); |
| final String title = getIntent().getStringExtra(Intent.EXTRA_TITLE); |
| SaveFragment.show(getFragmentManager(), mimeType, title); |
| } |
| } |
| |
| public void updateActionBar() { |
| final FragmentManager fm = getFragmentManager(); |
| final ActionBar actionBar = getActionBar(); |
| |
| if (fm.getBackStackEntryCount() > 0) { |
| actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); |
| actionBar.setDisplayShowHomeEnabled(true); |
| actionBar.setDisplayHomeAsUpEnabled(true); |
| actionBar.setTitle(null); |
| actionBar.setListNavigationCallbacks(mStackAdapter, mNavigationListener); |
| actionBar.setSelectedNavigationItem(mStackAdapter.getCount() - 1); |
| mIgnoreNextNavigation = true; |
| |
| } else { |
| actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); |
| actionBar.setDisplayShowHomeEnabled(false); |
| actionBar.setDisplayHomeAsUpEnabled(false); |
| |
| if (mAction == ACTION_OPEN) { |
| actionBar.setTitle(R.string.title_open); |
| } else if (mAction == ACTION_CREATE) { |
| actionBar.setTitle(R.string.title_save); |
| } |
| } |
| } |
| |
| @Override |
| public boolean onCreateOptionsMenu(Menu menu) { |
| super.onCreateOptionsMenu(menu); |
| getMenuInflater().inflate(R.menu.activity, menu); |
| return true; |
| } |
| |
| @Override |
| public boolean onPrepareOptionsMenu(Menu menu) { |
| super.onPrepareOptionsMenu(menu); |
| |
| final MenuItem createDir = menu.findItem(R.id.menu_create_dir); |
| createDir.setVisible(mAction == ACTION_CREATE); |
| createDir.setEnabled(mCurrentSupportsCreate); |
| |
| return true; |
| } |
| |
| @Override |
| public boolean onOptionsItemSelected(MenuItem item) { |
| final int id = item.getItemId(); |
| if (id == android.R.id.home) { |
| getFragmentManager().popBackStack(); |
| updateActionBar(); |
| } else if (id == R.id.menu_create_dir) { |
| // TODO: show dialog to create directory |
| } |
| return super.onOptionsItemSelected(item); |
| } |
| |
| private OnBackStackChangedListener mStackListener = new OnBackStackChangedListener() { |
| @Override |
| public void onBackStackChanged() { |
| updateActionBar(); |
| } |
| }; |
| |
| private BaseAdapter mStackAdapter = new BaseAdapter() { |
| @Override |
| public int getCount() { |
| return getFragmentManager().getBackStackEntryCount(); |
| } |
| |
| @Override |
| public Object getItem(int position) { |
| return getFragmentManager().getBackStackEntryAt(position); |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| return getFragmentManager().getBackStackEntryAt(position).getId(); |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| if (convertView == null) { |
| convertView = LayoutInflater.from(parent.getContext()) |
| .inflate(android.R.layout.simple_dropdown_item_1line, parent, false); |
| } |
| |
| final BackStackEntry entry = getFragmentManager().getBackStackEntryAt(position); |
| final TextView text1 = (TextView) convertView.findViewById(android.R.id.text1); |
| text1.setText(entry.getBreadCrumbTitle()); |
| |
| return convertView; |
| } |
| }; |
| |
| private OnNavigationListener mNavigationListener = new OnNavigationListener() { |
| @Override |
| public boolean onNavigationItemSelected(int itemPosition, long itemId) { |
| if (mIgnoreNextNavigation) { |
| mIgnoreNextNavigation = false; |
| return false; |
| } |
| |
| getFragmentManager().popBackStack((int) itemId, 0); |
| return true; |
| } |
| }; |
| |
| public DisplayState getDisplayState() { |
| return mDisplayState; |
| } |
| |
| public void onDirectoryChanged(Uri uri, int flags) { |
| mCurrentDir = uri; |
| mCurrentSupportsCreate = (flags & DocumentsContract.FLAG_SUPPORTS_CREATE) != 0; |
| |
| if (mAction == ACTION_CREATE) { |
| final FragmentManager fm = getFragmentManager(); |
| SaveFragment.get(fm).setSaveEnabled(mCurrentSupportsCreate); |
| } |
| |
| invalidateOptionsMenu(); |
| } |
| |
| public void onBackendPicked(ProviderInfo info) { |
| final Uri uri = DocumentsContract.buildDocumentUri( |
| info.authority, DocumentsContract.ROOT_GUID); |
| final CharSequence displayName = info.loadLabel(getPackageManager()); |
| DirectoryFragment.show(getFragmentManager(), uri, displayName.toString()); |
| } |
| |
| public void onDocumentPicked(Document doc) { |
| final FragmentManager fm = getFragmentManager(); |
| if (DocumentsContract.MIME_TYPE_DIRECTORY.equals(doc.mimeType)) { |
| // Nested directory picked, recurse using new fragment |
| DirectoryFragment.show(fm, doc.uri, doc.displayName); |
| } else if (mAction == ACTION_OPEN) { |
| // Explicit file picked, return |
| onFinished(doc.uri); |
| } else if (mAction == ACTION_CREATE) { |
| // Overwrite current filename |
| SaveFragment.get(fm).setDisplayName(doc.displayName); |
| } |
| } |
| |
| public void onDocumentsPicked(List<Document> docs) { |
| final int size = docs.size(); |
| final Uri[] uris = new Uri[size]; |
| for (int i = 0; i < size; i++) { |
| uris[i] = docs.get(i).uri; |
| } |
| onFinished(uris); |
| } |
| |
| public void onSaveRequested(String mimeType, String displayName) { |
| // TODO: create file, confirming before overwriting |
| final Uri uri = null; |
| onFinished(uri); |
| } |
| |
| private void onFinished(Uri... uris) { |
| Log.d(TAG, "onFinished() " + Arrays.toString(uris)); |
| |
| final Intent intent = new Intent(); |
| if (uris.length == 1) { |
| intent.setData(uris[0]); |
| } else if (uris.length > 1) { |
| final ContentResolver resolver = getContentResolver(); |
| final ClipData clipData = new ClipData(null, mAcceptMimes, new ClipData.Item(uris[0])); |
| for (int i = 1; i < uris.length; i++) { |
| clipData.addItem(new ClipData.Item(uris[i])); |
| } |
| intent.setClipData(clipData); |
| } |
| |
| intent.addFlags( |
| Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_PERSIST_GRANT_URI_PERMISSION); |
| if (mAction == ACTION_CREATE) { |
| intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION); |
| } |
| |
| setResult(Activity.RESULT_OK, intent); |
| finish(); |
| } |
| |
| public static class DisplayState { |
| public int mode; |
| public int sortBy; |
| public boolean allowMultiple; |
| |
| public static final int MODE_LIST = 0; |
| public static final int MODE_GRID = 1; |
| |
| public static final int SORT_BY_NAME = 0; |
| public static final int SORT_BY_DATE = 1; |
| } |
| |
| public static class Document { |
| public Uri uri; |
| public String mimeType; |
| public String displayName; |
| |
| public static Document fromCursor(String authority, Cursor cursor) { |
| final Document doc = new Document(); |
| final String guid = getCursorString(cursor, DocumentColumns.GUID); |
| doc.uri = DocumentsContract.buildDocumentUri(authority, guid); |
| doc.mimeType = getCursorString(cursor, DocumentColumns.MIME_TYPE); |
| doc.displayName = getCursorString(cursor, DocumentColumns.DISPLAY_NAME); |
| return doc; |
| } |
| } |
| |
| public static boolean mimeMatches(String filter, String[] tests) { |
| for (String test : tests) { |
| if (mimeMatches(filter, test)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public static boolean mimeMatches(String filter, String test) { |
| if (filter.equals(test)) { |
| return true; |
| } else if ("*/*".equals(filter)) { |
| return true; |
| } else if (filter.endsWith("/*")) { |
| return filter.regionMatches(0, test, 0, filter.indexOf('/')); |
| } else { |
| return false; |
| } |
| } |
| |
| public static Drawable resolveDocumentIcon(Context context, String mimeType) { |
| // TODO: allow backends to provide custom MIME icons |
| if (DocumentsContract.MIME_TYPE_DIRECTORY.equals(mimeType)) { |
| return context.getResources().getDrawable(R.drawable.ic_dir); |
| } else { |
| final PackageManager pm = context.getPackageManager(); |
| final Intent intent = new Intent(Intent.ACTION_VIEW); |
| intent.setType(mimeType); |
| |
| final ResolveInfo info = pm.resolveActivity( |
| intent, PackageManager.MATCH_DEFAULT_ONLY); |
| if (info != null) { |
| return info.loadIcon(pm); |
| } else { |
| return null; |
| } |
| } |
| } |
| } |