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/*
* Copyright (C) 2012 The CyanogenMod 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.cyanogenmod.filemanager.ui.widgets;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import com.cyanogenmod.filemanager.util.CommandHelper;
import com.cyanogenmod.filemanager.util.FileHelper;
import java.io.File;
import java.util.List;
/**
* A widget based on {@link InlineAutocompleteTextView} for autocomplete
* directories like a bash console do (with tab key).
*/
public class DirectoryInlineAutocompleteTextView
extends InlineAutocompleteTextView
implements InlineAutocompleteTextView.OnTextChangedListener {
/**
* An interface to communicate validation events.
*/
public interface OnValidationListener {
/**
* Method invoked when the value is void.
*/
void onVoidValue();
/**
* Method invoked when the value is a valid value.
*/
void onValidValue();
/**
* Method invoked when the value is a invalid value.
*/
void onInvalidValue();
}
private static final String TAG = "DirectoryInlineAutocompleteTextView"; //$NON-NLS-1$
private OnValidationListener mOnValidationListener;
private String mLastParent;
/**
* Constructor of <code>DirectoryInlineAutocompleteTextView</code>.
*
* @param context The current context
*/
public DirectoryInlineAutocompleteTextView(Context context) {
super(context);
init();
}
/**
* Constructor of <code>DirectoryInlineAutocompleteTextView</code>.
*
* @param context The current context
* @param attrs The attributes of the XML tag that is inflating the view.
*/
public DirectoryInlineAutocompleteTextView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
/**
* Constructor of <code>DirectoryInlineAutocompleteTextView</code>.
*
* @param context The current context
* @param attrs The attributes of the XML tag that is inflating the view.
* @param defStyle The default style to apply to this view. If 0, no style
* will be applied (beyond what is included in the theme). This may
* either be an attribute resource, whose value will be retrieved
* from the current theme, or an explicit style resource.
*/
public DirectoryInlineAutocompleteTextView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
/**
* Method that initializes the view. This method loads all the necessary
* information and create an appropriate layout for the view
*/
private void init() {
//Sets last parent
this.mLastParent = ""; //$NON-NLS-1$
//Set the listener
setOnTextChangedListener(this);
setCompletionString(File.separator);
}
/**
* Method that set the listener for retrieve validation events.
*
* @param onValidationListener The listener for retrieve validation events
*/
public void setOnValidationListener(OnValidationListener onValidationListener) {
this.mOnValidationListener = onValidationListener;
}
/**
* {@inheritDoc}
*/
@Override
public void onTextChanged(String newValue, List<String> currentFilterData) {
String value = newValue;
//Check if directory is valid
if (value.length() == 0) {
if (this.mOnValidationListener != null) {
this.mOnValidationListener.onVoidValue();
}
} else {
boolean relative = FileHelper.isRelativePath(value);
if (relative) {
if (this.mOnValidationListener != null) {
this.mOnValidationListener.onInvalidValue();
}
} else {
if (this.mOnValidationListener != null) {
this.mOnValidationListener.onValidValue();
}
}
}
//Ensure data
if (!value.startsWith(FileHelper.ROOT_DIRECTORY)) {
currentFilterData.clear();
this.mLastParent = ""; //$NON-NLS-1$
return;
}
//Get the new parent
String newParent = new File(value).getParent();
if (newParent == null) {
newParent = FileHelper.ROOT_DIRECTORY;
}
if (!newParent.endsWith(FileHelper.ROOT_DIRECTORY)) {
newParent += FileHelper.ROOT_DIRECTORY;
}
if (value.compareTo(FileHelper.ROOT_DIRECTORY) == 0) {
newParent = FileHelper.ROOT_DIRECTORY;
currentFilterData.clear();
} else if (value.endsWith(FileHelper.ROOT_DIRECTORY)) {
//Force the change of parent
newParent = new File(value, "a").getParent(); //$NON-NLS-1$
if (!newParent.endsWith(FileHelper.ROOT_DIRECTORY)) {
newParent += FileHelper.ROOT_DIRECTORY;
}
currentFilterData.clear();
} else {
value = newParent;
}
//If a new path is detected, then load the new data
if (newParent.compareTo(this.mLastParent) != 0 || currentFilterData.isEmpty()) {
this.mLastParent = newParent;
currentFilterData.clear();
try {
List<String> newData =
CommandHelper.quickFolderSearch(getContext(), value, null);
currentFilterData.addAll(newData);
} catch (Throwable ex) {
Log.e(TAG, "Quick folder search failed", ex); //$NON-NLS-1$
currentFilterData.clear();
}
}
}
}
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