1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.setupwizardlib.template;
18
19import android.content.res.TypedArray;
20import android.support.annotation.AttrRes;
21import android.support.annotation.NonNull;
22import android.support.annotation.Nullable;
23import android.util.AttributeSet;
24import android.widget.TextView;
25
26import com.android.setupwizardlib.R;
27import com.android.setupwizardlib.TemplateLayout;
28
29/**
30 * A {@link Mixin} for setting and getting the header text.
31 */
32public class HeaderMixin implements Mixin {
33
34    private TemplateLayout mTemplateLayout;
35
36    /**
37     * @param layout The layout this Mixin belongs to.
38     * @param attrs XML attributes given to the layout.
39     * @param defStyleAttr The default style attribute as given to the constructor of the layout.
40     */
41    public HeaderMixin(@NonNull TemplateLayout layout, @Nullable AttributeSet attrs,
42            @AttrRes int defStyleAttr) {
43        mTemplateLayout = layout;
44
45        final TypedArray a = layout.getContext().obtainStyledAttributes(
46                attrs, R.styleable.SuwHeaderMixin, defStyleAttr, 0);
47
48        // Set the header text
49        final CharSequence headerText = a.getText(R.styleable.SuwHeaderMixin_suwHeaderText);
50        if (headerText != null) {
51            setText(headerText);
52        }
53
54        a.recycle();
55    }
56
57    /**
58     * @return The TextView displaying the header.
59     */
60    public TextView getTextView() {
61        return (TextView) mTemplateLayout.findManagedViewById(R.id.suw_layout_title);
62    }
63
64    /**
65     * Sets the header text. This can also be set via the XML attribute {@code app:suwHeaderText}.
66     *
67     * @param title The resource ID of the text to be set as header.
68     */
69    public void setText(int title) {
70        final TextView titleView = getTextView();
71        if (titleView != null) {
72            titleView.setText(title);
73        }
74    }
75
76    /**
77     * Sets the header text. This can also be set via the XML attribute {@code app:suwHeaderText}.
78     *
79     * @param title The text to be set as header.
80     */
81    public void setText(CharSequence title) {
82        final TextView titleView = getTextView();
83        if (titleView != null) {
84            titleView.setText(title);
85        }
86    }
87
88    /**
89     * @return The current header text.
90     */
91    public CharSequence getText() {
92        final TextView titleView = getTextView();
93        return titleView != null ? titleView.getText() : null;
94    }
95}
96