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1/*
2 * Copyright (C) 2015 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 android.support.v7.app;
18
19import android.app.Dialog;
20import android.content.Context;
21import android.os.Bundle;
22import android.support.annotation.IdRes;
23import android.support.annotation.LayoutRes;
24import android.support.annotation.Nullable;
25import android.support.v7.appcompat.R;
26import android.support.v7.view.ActionMode;
27import android.util.TypedValue;
28import android.view.View;
29import android.view.ViewGroup;
30
31/**
32 * Base class for AppCompat themed {@link android.app.Dialog}s.
33 */
34public class AppCompatDialog extends Dialog implements AppCompatCallback {
35
36    private AppCompatDelegate mDelegate;
37
38    public AppCompatDialog(Context context) {
39        this(context, 0);
40    }
41
42    public AppCompatDialog(Context context, int theme) {
43        super(context, getThemeResId(context, theme));
44
45        // This is a bit weird, but Dialog's are typically created and setup before being shown,
46        // which means that we can't rely on onCreate() being called before a content view is set.
47        // To workaround this, we call onCreate(null) in the ctor, and then again as usual in
48        // onCreate().
49        getDelegate().onCreate(null);
50
51        // Apply AppCompat's DayNight resources if needed
52        getDelegate().applyDayNight();
53    }
54
55    protected AppCompatDialog(Context context, boolean cancelable,
56            OnCancelListener cancelListener) {
57        super(context, cancelable, cancelListener);
58    }
59
60    @Override
61    protected void onCreate(Bundle savedInstanceState) {
62        getDelegate().installViewFactory();
63        super.onCreate(savedInstanceState);
64        getDelegate().onCreate(savedInstanceState);
65    }
66
67    /**
68     * Support library version of {@link android.app.Dialog#getActionBar}.
69     *
70     * <p>Retrieve a reference to this dialog's ActionBar.
71     *
72     * @return The Dialog's ActionBar, or null if it does not have one.
73     */
74    public ActionBar getSupportActionBar() {
75        return getDelegate().getSupportActionBar();
76    }
77
78    @Override
79    public void setContentView(@LayoutRes int layoutResID) {
80        getDelegate().setContentView(layoutResID);
81    }
82
83    @Override
84    public void setContentView(View view) {
85        getDelegate().setContentView(view);
86    }
87
88    @Override
89    public void setContentView(View view, ViewGroup.LayoutParams params) {
90        getDelegate().setContentView(view, params);
91    }
92
93    @Nullable
94    @Override
95    public View findViewById(@IdRes int id) {
96        return getDelegate().findViewById(id);
97    }
98
99    @Override
100    public void setTitle(CharSequence title) {
101        super.setTitle(title);
102        getDelegate().setTitle(title);
103    }
104
105    @Override
106    public void setTitle(int titleId) {
107        super.setTitle(titleId);
108        getDelegate().setTitle(getContext().getString(titleId));
109    }
110
111    @Override
112    public void addContentView(View view, ViewGroup.LayoutParams params) {
113        getDelegate().addContentView(view, params);
114    }
115
116    @Override
117    protected void onStop() {
118        super.onStop();
119        getDelegate().onStop();
120    }
121
122    /**
123     * Enable extended support library window features.
124     * <p>
125     * This is a convenience for calling
126     * {@link android.view.Window#requestFeature getWindow().requestFeature()}.
127     * </p>
128     *
129     * @param featureId The desired feature as defined in {@link android.view.Window} or
130     *                  {@link android.support.v4.view.WindowCompat}.
131     * @return Returns true if the requested feature is supported and now enabled.
132     *
133     * @see android.app.Dialog#requestWindowFeature
134     * @see android.view.Window#requestFeature
135     */
136    public boolean supportRequestWindowFeature(int featureId) {
137        return getDelegate().requestWindowFeature(featureId);
138    }
139
140    /**
141     * @hide
142     */
143    public void invalidateOptionsMenu() {
144        getDelegate().invalidateOptionsMenu();
145    }
146
147    /**
148     * @return The {@link AppCompatDelegate} being used by this Dialog.
149     */
150    public AppCompatDelegate getDelegate() {
151        if (mDelegate == null) {
152            mDelegate = AppCompatDelegate.create(this, this);
153        }
154        return mDelegate;
155    }
156
157    private static int getThemeResId(Context context, int themeId) {
158        if (themeId == 0) {
159            // If the provided theme is 0, then retrieve the dialogTheme from our theme
160            TypedValue outValue = new TypedValue();
161            context.getTheme().resolveAttribute(R.attr.dialogTheme, outValue, true);
162            themeId = outValue.resourceId;
163        }
164        return themeId;
165    }
166
167    @Override
168    public void onSupportActionModeStarted(ActionMode mode) {
169    }
170
171    @Override
172    public void onSupportActionModeFinished(ActionMode mode) {
173    }
174
175    @Nullable
176    @Override
177    public ActionMode onWindowStartingSupportActionMode(ActionMode.Callback callback) {
178        return null;
179    }
180}
181