<!--
  ~ Copyright (C) 2019 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.
  -->
<merge xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    tools:orientation="vertical"
    tools:parentTag="android.widget.LinearLayout">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="@dimen/controls_header_menu_size"
        android:paddingHorizontal="@dimen/controls_header_horizontal_padding"
        android:layout_marginBottom="@dimen/controls_header_bottom_margin"
        android:orientation="horizontal">

        <!-- make sure the header stays centered in the layout by adding a spacer -->
        <Space
            android:id="@+id/controls_spacer"
            android:layout_width="@dimen/controls_header_menu_button_size"
            android:layout_height="1dp"
            android:visibility="gone" />

        <ImageView
            android:id="@+id/controls_close"
            android:layout_width="@dimen/controls_header_menu_button_size"
            android:layout_height="@dimen/controls_header_menu_button_size"
            android:layout_gravity="center_vertical"
            android:background="?android:attr/selectableItemBackgroundBorderless"
            android:contentDescription="@string/accessibility_desc_close"
            android:padding="12dp"
            android:src="@drawable/ic_close"
            android:tint="@color/control_primary_text"
            android:visibility="gone"
            tools:visibility="visible" />

        <!-- need to keep this outer view in order to have a correctly sized anchor
             for the dropdown menu, as well as dropdown background in the right place -->
        <LinearLayout
            android:id="@+id/controls_header"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="horizontal">

            <TextView
                android:id="@+id/app_or_structure_spinner"
                style="@style/Control.Spinner.Header"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:clickable="false"
                tools:text="@tools:sample/lorem" />
        </LinearLayout>

        <ImageView
            android:id="@+id/controls_more"
            android:layout_width="@dimen/controls_header_menu_button_size"
            android:layout_height="@dimen/controls_header_menu_button_size"
            android:layout_gravity="center_vertical"
            android:background="?android:attr/selectableItemBackgroundBorderless"
            android:contentDescription="@string/accessibility_menu"
            android:padding="12dp"
            android:src="@drawable/ic_more_vert"
            android:tint="@color/control_more_vert" />
    </LinearLayout>

    <ScrollView
        android:id="@+id/controls_scroll_view"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_marginHorizontal="@dimen/controls_content_margin_horizontal"
        android:layout_weight="1"
        android:clipChildren="true"
        android:orientation="vertical"
        android:padding="@dimen/controls_content_padding"
        android:background="@drawable/controls_panel_background"
        android:scrollbars="none">

        <include layout="@layout/controls_list_view" />

    </ScrollView>

    <FrameLayout
        android:id="@+id/controls_panel"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_marginHorizontal="@dimen/controls_content_margin_horizontal"
        android:layout_weight="1"
        android:background="@drawable/controls_panel_background"
        android:visibility="gone"
        tools:visibility="visible" />
</merge>
