PlaybackControlsRowPresenter.java revision 4cc255c1c9ce5f3a718970b6e0be2c3ae6abf9ed 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5 * in compliance with the License. You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the License
10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11 * or implied. See the License for the specific language governing permissions and limitations under
12 * the License.
13 */
14package android.support.v17.leanback.widget;
15
16import android.support.v17.leanback.R;
17import android.content.Context;
18import android.graphics.Color;
19import android.util.TypedValue;
20import android.view.LayoutInflater;
21import android.view.View;
22import android.view.ViewGroup;
23import android.view.ViewGroup.LayoutParams;
24import android.view.ViewGroup.MarginLayoutParams;
25import android.widget.ImageView;
26
27/**
28 * A PlaybackControlsRowPresenter renders a {@link PlaybackControlsRow} to display a
29 * series of playback control buttons. Typically this row will be the first row in a fragment
30 * such as the {@link android.support.v17.leanback.app.PlaybackOverlayFragment
31 * PlaybackControlsFragment}.
32 */
33public class PlaybackControlsRowPresenter extends RowPresenter {
34
35    /**
36     * A ViewHolder for the PlaybackControlsRow.
37     */
38    public class ViewHolder extends RowPresenter.ViewHolder {
39        final ViewGroup mCard;
40        final ImageView mImageView;
41        final ViewGroup mDescriptionDock;
42        final ViewGroup mControlsDock;
43        final ViewGroup mSecondaryControlsDock;
44        final View mSpacer;
45        int mCardHeight;
46        int mControlsDockMarginStart;
47        int mControlsDockMarginEnd;
48        Presenter.ViewHolder mDescriptionVh;
49        PlaybackControlsPresenter.ViewHolder mControlsVh;
50        Presenter.ViewHolder mSecondaryControlsVh;
51        PlaybackControlsPresenter.BoundData mControlsBoundData =
52                new PlaybackControlsPresenter.BoundData();
53        ControlBarPresenter.BoundData mSecondaryBoundData = new ControlBarPresenter.BoundData();
54        final PlaybackControlsRow.OnPlaybackStateChangedListener mListener =
55                new PlaybackControlsRow.OnPlaybackStateChangedListener() {
56            @Override
57            public void onCurrentTimeChanged(int ms) {
58                mPlaybackControlsPresenter.setCurrentTime(mControlsVh, ms);
59            }
60            @Override
61            public void onBufferedProgressChanged(int ms) {
62                mPlaybackControlsPresenter.setSecondaryProgress(mControlsVh, ms);
63            }
64        };
65        final OnItemViewSelectedListener mOnItemViewSelectedListener =
66                new OnItemViewSelectedListener() {
67            @Override
68            public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
69                    RowPresenter.ViewHolder rowViewHolder, Row row) {
70                if (getOnItemViewSelectedListener() != null) {
71                    getOnItemViewSelectedListener().onItemSelected(itemViewHolder, item,
72                            ViewHolder.this, getRow());
73                }
74            }
75        };
76
77        ViewHolder(View rootView) {
78            super(rootView);
79            mCard = (ViewGroup) rootView.findViewById(R.id.controls_card);
80            mImageView = (ImageView) rootView.findViewById(R.id.image);
81            mDescriptionDock = (ViewGroup) rootView.findViewById(R.id.description_dock);
82            mControlsDock = (ViewGroup) rootView.findViewById(R.id.controls_dock);
83            mSecondaryControlsDock =
84                    (ViewGroup) rootView.findViewById(R.id.secondary_controls_dock);
85            mSpacer = rootView.findViewById(R.id.spacer);
86        }
87
88        Presenter getPresenter(Object item, boolean primary) {
89            ObjectAdapter adapter = primary ?
90                    ((PlaybackControlsRow) getRow()).getPrimaryActionsAdapter() :
91                            ((PlaybackControlsRow) getRow()).getSecondaryActionsAdapter();
92            if (adapter.getPresenterSelector() instanceof ControlButtonPresenterSelector) {
93                ControlButtonPresenterSelector selector =
94                        (ControlButtonPresenterSelector) adapter.getPresenterSelector();
95                return primary ? selector.getPrimaryPresenter() :
96                    selector.getSecondaryPresenter();
97            }
98            return adapter.getPresenter(item);
99        }
100    }
101
102    private int mBackgroundColor = Color.TRANSPARENT;
103    private boolean mBackgroundColorSet;
104    private int mProgressColor = Color.TRANSPARENT;
105    private boolean mProgressColorSet;
106    private boolean mSecondaryActionsHidden;
107    private Presenter mDescriptionPresenter;
108    private PlaybackControlsPresenter mPlaybackControlsPresenter;
109    private ControlBarPresenter mSecondaryControlsPresenter;
110
111    /**
112     * Constructor for a PlaybackControlsRowPresenter.
113     *
114     * @param descriptionPresenter Presenter for displaying item details.
115     */
116    public PlaybackControlsRowPresenter(Presenter descriptionPresenter) {
117        setHeaderPresenter(null);
118        setSelectEffectEnabled(false);
119
120        mDescriptionPresenter = descriptionPresenter;
121        mPlaybackControlsPresenter = new PlaybackControlsPresenter(R.layout.lb_playback_controls);
122        mSecondaryControlsPresenter = new ControlBarPresenter(R.layout.lb_control_bar);
123    }
124
125    /**
126     * Constructor for a PlaybackControlsRowPresenter.
127     */
128    public PlaybackControlsRowPresenter() {
129        this(null);
130    }
131
132    /**
133     * Sets the listener for {@link Action} click events.
134     */
135    public void setOnActionClickedListener(OnActionClickedListener listener) {
136        mPlaybackControlsPresenter.setOnActionClickedListener(listener);
137        mSecondaryControlsPresenter.setOnActionClickedListener(listener);
138    }
139
140    /**
141     * Gets the listener for {@link Action} click events.
142     */
143    public OnActionClickedListener getOnActionClickedListener() {
144        return mPlaybackControlsPresenter.getOnActionClickedListener();
145    }
146
147    /**
148     * Sets the background color.  If not set, a default from the theme will be used.
149     */
150    public void setBackgroundColor(int color) {
151        mBackgroundColor = color;
152        mBackgroundColorSet = true;
153    }
154
155    /**
156     * Returns the background color.  If no background color was set, transparent
157     * is returned.
158     */
159    public int getBackgroundColor() {
160        return mBackgroundColor;
161    }
162
163    /**
164     * Sets the primary color for the progress bar.  If not set, a default from
165     * the theme will be used.
166     */
167    public void setProgressColor(int color) {
168        mProgressColor = color;
169        mProgressColorSet = true;
170    }
171
172    /**
173     * Returns the primary color for the progress bar.  If no color was set, transparent
174     * is returned.
175     */
176    public int getProgressColor() {
177        return mProgressColor;
178    }
179
180    /**
181     * Sets the secondary actions to be hidden behind a "more actions" button.
182     * When "more actions" is selected, the primary actions are replaced with
183     * the secondary actions.
184     */
185    public void setSecondaryActionsHidden(boolean hidden) {
186        mSecondaryActionsHidden = hidden;
187    }
188
189    /**
190     * Returns true if secondary actions are hidden.
191     */
192    public boolean areSecondaryActionsHidden() {
193        return mSecondaryActionsHidden;
194    }
195
196    private int getDefaultBackgroundColor(Context context) {
197        TypedValue outValue = new TypedValue();
198        context.getTheme().resolveAttribute(R.attr.defaultBrandColor, outValue, true);
199        return context.getResources().getColor(outValue.resourceId);
200    }
201
202    private int getDefaultProgressColor(Context context) {
203        TypedValue outValue = new TypedValue();
204        context.getTheme().resolveAttribute(R.attr.playbackProgressPrimaryColor, outValue, true);
205        return context.getResources().getColor(outValue.resourceId);
206    }
207
208    @Override
209    protected RowPresenter.ViewHolder createRowViewHolder(ViewGroup parent) {
210        View v = LayoutInflater.from(parent.getContext())
211            .inflate(R.layout.lb_playback_controls_row, parent, false);
212        ViewHolder vh = new ViewHolder(v);
213        initRow(vh);
214        return vh;
215    }
216
217    private void initRow(ViewHolder vh) {
218        vh.mCardHeight = vh.mCard.getLayoutParams().height;
219
220        MarginLayoutParams lp = (MarginLayoutParams) vh.mControlsDock.getLayoutParams();
221        vh.mControlsDockMarginStart = lp.getMarginStart();
222        vh.mControlsDockMarginEnd = lp.getMarginEnd();
223
224        if (mDescriptionPresenter != null) {
225            vh.mDescriptionVh = mDescriptionPresenter.onCreateViewHolder(vh.mDescriptionDock);
226            vh.mDescriptionDock.addView(vh.mDescriptionVh.view);
227        }
228
229        vh.mControlsVh = (PlaybackControlsPresenter.ViewHolder)
230                mPlaybackControlsPresenter.onCreateViewHolder(vh.mControlsDock);
231        mPlaybackControlsPresenter.setProgressColor(vh.mControlsVh,
232                mProgressColorSet ? mProgressColor :
233                        getDefaultProgressColor(vh.mControlsDock.getContext()));
234        mPlaybackControlsPresenter.setOnItemViewSelectedListener(vh.mOnItemViewSelectedListener);
235        vh.mControlsDock.addView(vh.mControlsVh.view);
236
237        vh.mSecondaryControlsVh =
238                mSecondaryControlsPresenter.onCreateViewHolder(vh.mSecondaryControlsDock);
239        if (!mSecondaryActionsHidden) {
240            vh.mSecondaryControlsDock.addView(vh.mSecondaryControlsVh.view);
241        }
242        mSecondaryControlsPresenter.setOnItemViewSelectedListener(vh.mOnItemViewSelectedListener);
243    }
244
245    private void setBackground(View view) {
246        view.setBackgroundColor(mBackgroundColorSet ?
247                mBackgroundColor : getDefaultBackgroundColor(view.getContext()));
248        ShadowHelper.getInstance().setZ(view, 0f);
249    }
250
251    @Override
252    protected void onBindRowViewHolder(RowPresenter.ViewHolder holder, Object item) {
253        super.onBindRowViewHolder(holder, item);
254
255        ViewHolder vh = (ViewHolder) holder;
256        PlaybackControlsRow row = (PlaybackControlsRow) vh.getRow();
257
258        mPlaybackControlsPresenter.enableSecondaryActions(mSecondaryActionsHidden);
259
260        if (row.getItem() == null) {
261            LayoutParams lp = vh.mCard.getLayoutParams();
262            lp.height = LayoutParams.WRAP_CONTENT;
263            vh.mCard.setLayoutParams(lp);
264            vh.mDescriptionDock.setVisibility(View.GONE);
265            vh.mSpacer.setVisibility(View.GONE);
266        } else {
267            LayoutParams lp = vh.mCard.getLayoutParams();
268            lp.height = vh.mCardHeight;
269            vh.mCard.setLayoutParams(lp);
270            vh.mDescriptionDock.setVisibility(View.VISIBLE);
271            if (vh.mDescriptionVh != null) {
272                mDescriptionPresenter.onBindViewHolder(vh.mDescriptionVh, row.getItem());
273            }
274            vh.mSpacer.setVisibility(View.VISIBLE);
275        }
276
277        MarginLayoutParams lp = (MarginLayoutParams) vh.mControlsDock.getLayoutParams();
278        if (row.getImageDrawable() == null || row.getItem() == null) {
279            setBackground(vh.mControlsDock);
280            vh.mCard.setBackgroundColor(Color.TRANSPARENT);
281            lp.setMarginStart(0);
282            lp.setMarginEnd(0);
283            mPlaybackControlsPresenter.enableTimeMargins(vh.mControlsVh, true);
284        } else {
285            vh.mImageView.setImageDrawable(row.getImageDrawable());
286            setBackground(vh.mCard);
287            vh.mControlsDock.setBackgroundColor(Color.TRANSPARENT);
288            lp.setMarginStart(vh.mControlsDockMarginStart);
289            lp.setMarginEnd(vh.mControlsDockMarginEnd);
290            mPlaybackControlsPresenter.enableTimeMargins(vh.mControlsVh, false);
291        }
292        vh.mControlsDock.setLayoutParams(lp);
293
294        vh.mControlsBoundData.adapter = row.getPrimaryActionsAdapter();
295        vh.mControlsBoundData.secondaryActionsAdapter = row.getSecondaryActionsAdapter();
296        vh.mControlsBoundData.presenter = vh.getPresenter(
297                row.getPrimaryActionsAdapter().get(0), true);
298        mPlaybackControlsPresenter.onBindViewHolder(vh.mControlsVh, vh.mControlsBoundData);
299
300        vh.mSecondaryBoundData.adapter = row.getSecondaryActionsAdapter();
301        vh.mSecondaryBoundData.presenter = vh.getPresenter(
302                row.getSecondaryActionsAdapter().get(0), false);
303        mSecondaryControlsPresenter.onBindViewHolder(vh.mSecondaryControlsVh,
304                vh.mSecondaryBoundData);
305
306        mPlaybackControlsPresenter.setTotalTime(vh.mControlsVh, row.getTotalTime());
307        mPlaybackControlsPresenter.setCurrentTime(vh.mControlsVh, row.getCurrentTime());
308        mPlaybackControlsPresenter.setSecondaryProgress(vh.mControlsVh, row.getBufferedProgress());
309        row.setOnPlaybackStateChangedListener(vh.mListener);
310    }
311
312    @Override
313    protected void onUnbindRowViewHolder(RowPresenter.ViewHolder holder) {
314        ViewHolder vh = (ViewHolder) holder;
315        PlaybackControlsRow row = (PlaybackControlsRow) vh.getRow();
316
317        if (vh.mDescriptionVh != null) {
318            mDescriptionPresenter.onUnbindViewHolder(vh.mDescriptionVh);
319        }
320        mPlaybackControlsPresenter.onUnbindViewHolder(vh.mControlsVh);
321        mSecondaryControlsPresenter.onUnbindViewHolder(vh.mSecondaryControlsVh);
322        row.setOnPlaybackStateChangedListener(null);
323
324        super.onUnbindRowViewHolder(holder);
325    }
326}
327