implement directory chooser

2 files changed, 190 insertions, 4 deletions

diff --git a/src/org/fox/ttcomics/DirectoryPicker.java b/src/org/fox/ttcomics/DirectoryPicker.java
new file mode 100644
index 0000000..0f401b5
--- /dev/null
+++ b/src/org/fox/ttcomics/DirectoryPicker.java
@@ -0,0 +1,154 @@
+package org.fox.ttcomics;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Collections;
+
+import android.app.ListActivity;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Environment;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.ListView;
+import android.widget.Toast;
+
+/**
+Copyright (C) 2011 by Brad Greco <[email protected]>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+ */
+
+public class DirectoryPicker extends ListActivity {
+
+	public static final String START_DIR = "startDir";
+	public static final String ONLY_DIRS = "onlyDirs";
+	public static final String SHOW_HIDDEN = "showHidden";
+	public static final String CHOSEN_DIRECTORY = "chosenDir";
+	public static final int PICK_DIRECTORY = 43522432;
+	private File dir;
+	private boolean showHidden = false;
+	private boolean onlyDirs = true ;
+	
+	@Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        Bundle extras = getIntent().getExtras();
+        dir = Environment.getExternalStorageDirectory();
+        if (extras != null) {
+        	String preferredStartDir = extras.getString(START_DIR);
+        	showHidden = extras.getBoolean(SHOW_HIDDEN, false);
+        	onlyDirs = extras.getBoolean(ONLY_DIRS, true);
+        	if(preferredStartDir != null) {
+            	File startDir = new File(preferredStartDir);
+            	if(startDir.isDirectory()) {
+            		dir = startDir;
+            	}
+            } 
+        }
+        
+        setContentView(R.layout.chooser_list);
+        setTitle(dir.getAbsolutePath());
+        Button btnChoose = (Button) findViewById(R.id.btnChoose);
+        String name = dir.getName();
+        if(name.length() == 0)
+        	name = "/";
+        btnChoose.setText(getString(R.string.picker_choose, name));
+        btnChoose.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+            	returnDir(dir.getAbsolutePath());
+            }
+        });
+        
+        ListView lv = getListView();
+        lv.setTextFilterEnabled(true);
+        
+        if(!dir.canRead()) {
+        	Context context = getApplicationContext();
+        	String msg = getString(R.string.error_could_not_read_folder_contents_);
+        	Toast toast = Toast.makeText(context, msg, Toast.LENGTH_LONG);
+        	toast.show();
+        	return;
+        }
+        
+        final ArrayList<File> files = filter(dir.listFiles(), onlyDirs, showHidden);
+        String[] names = names(files);
+        setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, names));        	
+        
+
+        lv.setOnItemClickListener(new OnItemClickListener() {
+        	public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        		if(!files.get(position).isDirectory())
+        			return;
+        		String path = files.get(position).getAbsolutePath();
+                Intent intent = new Intent(DirectoryPicker.this, DirectoryPicker.class);
+                intent.putExtra(DirectoryPicker.START_DIR, path);
+                intent.putExtra(DirectoryPicker.SHOW_HIDDEN, showHidden);
+                intent.putExtra(DirectoryPicker.ONLY_DIRS, onlyDirs);
+                startActivityForResult(intent, PICK_DIRECTORY);
+        	}
+        });
+    }
+	
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+    	if(requestCode == PICK_DIRECTORY && resultCode == RESULT_OK) {
+	    	Bundle extras = data.getExtras();
+	    	String path = (String) extras.get(DirectoryPicker.CHOSEN_DIRECTORY);
+	        returnDir(path);
+    	}
+    }
+	
+    private void returnDir(String path) {
+    	Intent result = new Intent();
+    	result.putExtra(CHOSEN_DIRECTORY, path);
+        setResult(RESULT_OK, result);
+    	finish();    	
+    }
+
+	public ArrayList<File> filter(File[] file_list, boolean onlyDirs, boolean showHidden) {
+		ArrayList<File> files = new ArrayList<File>();
+		
+		for(File file: file_list) {
+			if(onlyDirs && !file.isDirectory())
+				continue;
+			if(!showHidden && file.isHidden())
+				continue;
+			files.add(file);
+		}
+		Collections.sort(files);
+
+		return files;
+	}
+	
+	public String[] names(ArrayList<File> files) {
+		String[] names = new String[files.size()];
+		int i = 0;
+		for(File file: files) {
+			names[i] = file.getName();
+			i++;
+		}
+		return names;
+	}
+}
+
diff --git a/src/org/fox/ttcomics/PreferencesActivity.java b/src/org/fox/ttcomics/PreferencesActivity.java
index 84029f1..b49e6fe 100644
--- a/src/org/fox/ttcomics/PreferencesActivity.java
+++ b/src/org/fox/ttcomics/PreferencesActivity.java
@@ -1,7 +1,9 @@
 package org.fox.ttcomics;

 

+import android.content.Intent;

 import android.content.SharedPreferences;

 import android.os.Bundle;

+import android.os.Environment;

 import android.preference.Preference;

 import android.preference.PreferenceActivity;

 import android.preference.PreferenceCategory;

@@ -13,15 +15,45 @@ public class PreferencesActivity extends PreferenceActivity {
 	protected void onCreate(Bundle savedInstanceState) {

 		super.onCreate(savedInstanceState);

 

-		SharedPreferences prefs = PreferenceManager

+		final SharedPreferences prefs = PreferenceManager

 				.getDefaultSharedPreferences(getApplicationContext());

 		

 		addPreferencesFromResource(R.xml.preferences);

 		

 		if (CommonActivity.isCompatMode()) {

-			Preference pref = findPreference("dim_status_bar");

-			PreferenceCategory cat = (PreferenceCategory) findPreference("prefs_reading");

-			cat.removePreference(pref);			

+			Preference dimPref = findPreference("dim_status_bar");

+			PreferenceCategory readingCat = (PreferenceCategory) findPreference("prefs_reading");

+			readingCat.removePreference(dimPref);			

+		}

+		

+		Preference dirPref = (Preference) findPreference("comics_directory");

+		dirPref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {

+			@Override

+			public boolean onPreferenceClick(Preference preference) {

+				Intent intent = new Intent(PreferencesActivity.this, DirectoryPicker.class);

+				

+				//intent.putExtra(DirectoryPicker.START_DIR, prefs.getString("comics_directory", 

+				//		Environment.getExternalStorageDirectory().getAbsolutePath()));

+				

+				startActivityForResult(intent, DirectoryPicker.PICK_DIRECTORY);				

+				return true;

+             }

+         });

+	}

+	

+	@Override

+	protected void onActivityResult(int requestCode, int resultCode, Intent data) {

+		if(requestCode == DirectoryPicker.PICK_DIRECTORY && resultCode == RESULT_OK) {

+			Bundle extras = data.getExtras();

+			String path = (String) extras.get(DirectoryPicker.CHOSEN_DIRECTORY);

+			

+			SharedPreferences prefs = PreferenceManager

+					.getDefaultSharedPreferences(getApplicationContext());

+

+			SharedPreferences.Editor editor = prefs.edit();

+			editor.putString("comics_directory", path);	    	

+	    	editor.commit();

+			

 		}

 	}

 }