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/*
* Copyright (C) 2015 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.dialer.widget;
import android.content.Context;
import android.support.annotation.StringRes;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
public class EmptyContentView extends LinearLayout implements View.OnClickListener {
/** Listener to call when action button is clicked. */
public interface OnEmptyViewActionButtonClickedListener {
void onEmptyViewActionButtonClicked();
}
public static final int NO_LABEL = 0;
public static final int NO_IMAGE = 0;
private ImageView imageView;
private TextView descriptionView;
private TextView actionView;
private OnEmptyViewActionButtonClickedListener onActionButtonClickedListener;
private @StringRes int actionLabel;
public EmptyContentView(Context context) {
this(context, null);
}
public EmptyContentView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public EmptyContentView(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public EmptyContentView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
inflateLayout();
// Don't let touches fall through the empty view.
setClickable(true);
imageView = (ImageView) findViewById(R.id.empty_list_view_image);
descriptionView = (TextView) findViewById(R.id.empty_list_view_message);
actionView = (TextView) findViewById(R.id.empty_list_view_action);
actionView.setOnClickListener(this);
}
public void setDescription(int resourceId) {
if (resourceId == NO_LABEL) {
descriptionView.setText(null);
descriptionView.setVisibility(View.GONE);
} else {
descriptionView.setText(resourceId);
descriptionView.setVisibility(View.VISIBLE);
}
}
public void setImage(int resourceId) {
if (resourceId == NO_LABEL) {
imageView.setImageDrawable(null);
imageView.setVisibility(View.GONE);
} else {
imageView.setImageResource(resourceId);
imageView.setVisibility(View.VISIBLE);
}
}
public void setActionLabel(@StringRes int resourceId) {
actionLabel = resourceId;
if (resourceId == NO_LABEL) {
actionView.setText(null);
actionView.setVisibility(View.GONE);
} else {
actionView.setText(resourceId);
actionView.setVisibility(View.VISIBLE);
}
}
public @StringRes int getActionLabel() {
return actionLabel;
}
public boolean isShowingContent() {
return imageView.getVisibility() == View.VISIBLE
|| descriptionView.getVisibility() == View.VISIBLE
|| actionView.getVisibility() == View.VISIBLE;
}
public void setActionClickedListener(OnEmptyViewActionButtonClickedListener listener) {
onActionButtonClickedListener = listener;
}
@Override
public void onClick(View v) {
if (onActionButtonClickedListener != null) {
onActionButtonClickedListener.onEmptyViewActionButtonClicked();
}
}
protected void inflateLayout() {
setOrientation(LinearLayout.VERTICAL);
final LayoutInflater inflater =
(LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.empty_content_view, this);
}
}
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