1 /* 2 * Copyright (C) 2011 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 17 package com.android.videoeditor.widgets; 18 19 import com.android.videoeditor.service.MovieMediaItem; 20 21 /** 22 * Listener that listens to state changes of {@link MediaLinearLayout}. 23 */ 24 public interface MediaLinearLayoutListener { 25 /** 26 * Request scrolling by an offset amount 27 * 28 * @param scrollBy The amount to scroll 29 * @param smooth true to scroll smoothly 30 */ 31 void onRequestScrollBy(int scrollBy, boolean smooth); 32 33 /** 34 * Request scrolling to a specified time position 35 * 36 * @param scrollToTime The scroll position 37 * @param smooth true to scroll smoothly 38 */ 39 void onRequestMovePlayhead(long scrollToTime, boolean smooth); 40 41 /** 42 * Add a new media item 43 * 44 * @param afterMediaItemId Add media item after this media item id 45 */ 46 void onAddMediaItem(String afterMediaItemId); 47 48 /** 49 * A media item enters trimming mode 50 * 51 * @param mediaItem The media item 52 */ 53 void onTrimMediaItemBegin(MovieMediaItem mediaItem); 54 55 /** 56 * A media item is being trimmed 57 * 58 * @param mediaItem The media item 59 * @param timeMs The time where the trim occurs 60 */ 61 void onTrimMediaItem(MovieMediaItem mediaItem, long timeMs); 62 63 /** 64 * A media has been trimmed 65 * 66 * @param mediaItem The media item 67 * @param timeMs The time where the trim occurs 68 */ 69 void onTrimMediaItemEnd(MovieMediaItem mediaItem, long timeMs); 70 } 71
