/*
 * Copyright (C) 2010 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.contacts.common.list;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.View;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TextView;
import com.android.contacts.common.R;

/** A custom view for the pinned section header shown at the top of the contact list. */
public class ContactListPinnedHeaderView extends TextView {

  public ContactListPinnedHeaderView(Context context, AttributeSet attrs, View parent) {
    super(context, attrs);

    if (R.styleable.ContactListItemView == null) {
      return;
    }
    TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.ContactListItemView);
    int backgroundColor =
        a.getColor(R.styleable.ContactListItemView_list_item_background_color, Color.WHITE);
    int textOffsetTop =
        a.getDimensionPixelSize(R.styleable.ContactListItemView_list_item_text_offset_top, 0);
    int paddingStartOffset =
        a.getDimensionPixelSize(R.styleable.ContactListItemView_list_item_padding_left, 0);
    int textWidth = getResources().getDimensionPixelSize(R.dimen.contact_list_section_header_width);
    int widthIncludingPadding = paddingStartOffset + textWidth;
    a.recycle();

    setBackgroundColor(backgroundColor);
    setTextAppearance(getContext(), R.style.SectionHeaderStyle);
    setLayoutParams(new LayoutParams(textWidth, LayoutParams.WRAP_CONTENT));
    setLayoutDirection(parent.getLayoutDirection());
    setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);

    // Apply text top offset. Multiply by two, because we are implementing this by padding for a
    // vertically centered view, rather than adjusting the position directly via a layout.
    setPaddingRelative(
        0, getPaddingTop() + (textOffsetTop * 2), getPaddingEnd(), getPaddingBottom());
  }

  /** Sets section header or makes it invisible if the title is null. */
  public void setSectionHeaderTitle(String title) {
    if (!TextUtils.isEmpty(title)) {
      setText(title);
    } else {
      setVisibility(View.GONE);
    }
  }
}