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.graphics.drawable.Drawable; 17import android.support.v17.leanback.R; 18import android.text.TextUtils; 19import android.view.LayoutInflater; 20import android.view.View; 21import android.view.ViewGroup; 22import android.widget.Button; 23 24class ActionPresenterSelector extends PresenterSelector { 25 26 private final Presenter mOneLineActionPresenter = new OneLineActionPresenter(); 27 private final Presenter mTwoLineActionPresenter = new TwoLineActionPresenter(); 28 29 @Override 30 public Presenter getPresenter(Object item) { 31 Action action = (Action) item; 32 if (TextUtils.isEmpty(action.getLabel2())) { 33 return mOneLineActionPresenter; 34 } else { 35 return mTwoLineActionPresenter; 36 } 37 } 38 39 static class ActionViewHolder extends Presenter.ViewHolder { 40 Action mAction; 41 Button mButton; 42 int mLayoutDirection; 43 44 public ActionViewHolder(View view, int layoutDirection) { 45 super(view); 46 mButton = (Button) view.findViewById(R.id.lb_action_button); 47 mLayoutDirection = layoutDirection; 48 } 49 } 50 51 class OneLineActionPresenter extends Presenter { 52 @Override 53 public ViewHolder onCreateViewHolder(ViewGroup parent) { 54 View v = LayoutInflater.from(parent.getContext()) 55 .inflate(R.layout.lb_action_1_line, parent, false); 56 return new ActionViewHolder(v, parent.getLayoutDirection()); 57 } 58 59 @Override 60 public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) { 61 Action action = (Action) item; 62 ActionViewHolder vh = (ActionViewHolder) viewHolder; 63 vh.mAction = action; 64 vh.mButton.setText(action.getLabel1()); 65 } 66 67 @Override 68 public void onUnbindViewHolder(Presenter.ViewHolder viewHolder) { 69 ((ActionViewHolder) viewHolder).mAction = null; 70 } 71 } 72 73 class TwoLineActionPresenter extends Presenter { 74 @Override 75 public ViewHolder onCreateViewHolder(ViewGroup parent) { 76 View v = LayoutInflater.from(parent.getContext()) 77 .inflate(R.layout.lb_action_2_lines, parent, false); 78 return new ActionViewHolder(v, parent.getLayoutDirection()); 79 } 80 81 @Override 82 public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) { 83 Action action = (Action) item; 84 ActionViewHolder vh = (ActionViewHolder) viewHolder; 85 Drawable icon = action.getIcon(); 86 vh.mAction = action; 87 88 if (icon != null) { 89 final int startPadding = vh.view.getResources() 90 .getDimensionPixelSize(R.dimen.lb_action_with_icon_padding_start); 91 final int endPadding = vh.view.getResources() 92 .getDimensionPixelSize(R.dimen.lb_action_with_icon_padding_end); 93 vh.view.setPaddingRelative(startPadding, 0, endPadding, 0); 94 } else { 95 final int padding = vh.view.getResources() 96 .getDimensionPixelSize(R.dimen.lb_action_padding_horizontal); 97 vh.view.setPaddingRelative(padding, 0, padding, 0); 98 } 99 if (vh.mLayoutDirection == View.LAYOUT_DIRECTION_RTL) { 100 vh.mButton.setCompoundDrawablesWithIntrinsicBounds(null, null, icon, null); 101 } else { 102 vh.mButton.setCompoundDrawablesWithIntrinsicBounds(icon, null, null, null); 103 } 104 105 CharSequence line1 = action.getLabel1(); 106 CharSequence line2 = action.getLabel2(); 107 if (TextUtils.isEmpty(line1)) { 108 vh.mButton.setText(line2); 109 } else if (TextUtils.isEmpty(line2)) { 110 vh.mButton.setText(line1); 111 } else { 112 vh.mButton.setText(line1 + "\n" + line2); 113 } 114 } 115 116 @Override 117 public void onUnbindViewHolder(Presenter.ViewHolder viewHolder) { 118 ActionViewHolder vh = (ActionViewHolder) viewHolder; 119 vh.mButton.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null); 120 vh.view.setPadding(0, 0, 0, 0); 121 vh.mAction = null; 122 } 123 } 124} 125