CMFileManager : Beam to send files

Added support to be able to beam files via the file manager.

Steps :

    1. Select one or multiple files via checkbox
    2. Tap phones to beam file over
    3. Enjoy !

Patchset 2 : Switch to callback
Patchset 3 : Remove debug messages
Patchset 4 : Add check to avoid crashes on devices without nfc
Patchset 5 : Rebase

Conflicts:
	src/com/cyanogenmod/filemanager/activities/NavigationActivity.java

Change-Id: I005db2ebdabc0e83a92ae820cb98f73709d5f535

2 files changed, 32 insertions, 0 deletions

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index a95a775e..20cbb9e1 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -27,6 +27,7 @@
   <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
   <uses-permission android:name="android.permission.SET_PREFERRED_APPLICATIONS" />
   <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
+  <uses-permission android:name="android.permission.NFC"/>
 
   <application
     android:name="FileManagerApplication"
diff --git a/src/com/cyanogenmod/filemanager/activities/NavigationActivity.java b/src/com/cyanogenmod/filemanager/activities/NavigationActivity.java
index 0bd15d44..d76f360f 100644
--- a/src/com/cyanogenmod/filemanager/activities/NavigationActivity.java
+++ b/src/com/cyanogenmod/filemanager/activities/NavigationActivity.java
@@ -26,6 +26,11 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.res.Configuration;
+import android.net.Uri;
+import android.nfc.NdefMessage;
+import android.nfc.NdefRecord;
+import android.nfc.NfcAdapter;
+import android.nfc.NfcEvent;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Parcelable;
@@ -84,6 +89,7 @@ import com.cyanogenmod.filemanager.util.ExceptionUtil;
 import com.cyanogenmod.filemanager.util.FileHelper;
 import com.cyanogenmod.filemanager.util.StorageHelper;
 
+import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.Serializable;
 import java.util.ArrayList;
@@ -292,6 +298,31 @@ public class NavigationActivity extends Activity
         //Set the main layout of the activity
         setContentView(R.layout.navigation);
 
+        //Initialize nfc adapter
+        NfcAdapter mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
+        if (mNfcAdapter != null) {
+            mNfcAdapter.setBeamPushUrisCallback(new NfcAdapter.CreateBeamUrisCallback() {
+                @Override
+                public Uri[] createBeamUris(NfcEvent event) {
+                    List<FileSystemObject> selectedFiles = getNavigationView(NavigationActivity.
+                            this.mCurrentNavigationView).getSelectedFiles();
+                    if (selectedFiles.size() > 0) {
+                        List<Uri> fileUri = new ArrayList<Uri>();
+                        for (FileSystemObject f : selectedFiles) {
+                            //Beam ignores folders and system files
+                            if (!FileHelper.isDirectory(f) && !FileHelper.isSystemFile(f)) {
+                                fileUri.add(Uri.fromFile(new File(f.getFullPath())));
+                            }
+                        }
+                        if (fileUri.size() > 0) {
+                            return fileUri.toArray(new Uri[fileUri.size()]);
+                        }
+                    }
+                    return null;
+                }
+            }, this);
+        }
+
         // Show welcome message
         showWelcomeMsg();