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 17 package android.support.design.internal; 18 19 import android.content.Context; 20 import android.content.res.ColorStateList; 21 import android.graphics.Color; 22 import android.graphics.drawable.ColorDrawable; 23 import android.graphics.drawable.Drawable; 24 import android.graphics.drawable.StateListDrawable; 25 import android.support.design.R; 26 import android.support.v4.graphics.drawable.DrawableCompat; 27 import android.support.v4.widget.TextViewCompat; 28 import android.support.v7.internal.view.menu.MenuItemImpl; 29 import android.support.v7.internal.view.menu.MenuView; 30 import android.util.AttributeSet; 31 import android.util.TypedValue; 32 import android.widget.TextView; 33 34 /** 35 * @hide 36 */ 37 public class NavigationMenuItemView extends TextView implements MenuView.ItemView { 38 39 private static final int[] CHECKED_STATE_SET = {android.R.attr.state_checked}; 40 41 private int mIconSize; 42 private MenuItemImpl mItemData; 43 private ColorStateList mIconTintList; 44 NavigationMenuItemView(Context context)45 public NavigationMenuItemView(Context context) { 46 this(context, null); 47 } 48 NavigationMenuItemView(Context context, AttributeSet attrs)49 public NavigationMenuItemView(Context context, AttributeSet attrs) { 50 this(context, attrs, 0); 51 } 52 NavigationMenuItemView(Context context, AttributeSet attrs, int defStyleAttr)53 public NavigationMenuItemView(Context context, AttributeSet attrs, int defStyleAttr) { 54 super(context, attrs, defStyleAttr); 55 mIconSize = context.getResources().getDimensionPixelSize( 56 R.dimen.design_navigation_icon_size); 57 } 58 59 @Override initialize(MenuItemImpl itemData, int menuType)60 public void initialize(MenuItemImpl itemData, int menuType) { 61 mItemData = itemData; 62 63 setVisibility(itemData.isVisible() ? VISIBLE : GONE); 64 65 if (getBackground() == null) { 66 setBackgroundDrawable(createDefaultBackground()); 67 } 68 69 setCheckable(itemData.isCheckable()); 70 setChecked(itemData.isChecked()); 71 setEnabled(itemData.isEnabled()); 72 setTitle(itemData.getTitle()); 73 setIcon(itemData.getIcon()); 74 } 75 createDefaultBackground()76 private StateListDrawable createDefaultBackground() { 77 TypedValue value = new TypedValue(); 78 if (getContext().getTheme().resolveAttribute(R.attr.colorControlHighlight, value, true)) { 79 StateListDrawable drawable = new StateListDrawable(); 80 drawable.addState(CHECKED_STATE_SET, new ColorDrawable(value.data)); 81 drawable.addState(EMPTY_STATE_SET, new ColorDrawable(Color.TRANSPARENT)); 82 return drawable; 83 } 84 return null; 85 } 86 87 @Override getItemData()88 public MenuItemImpl getItemData() { 89 return mItemData; 90 } 91 92 @Override setTitle(CharSequence title)93 public void setTitle(CharSequence title) { 94 setText(title); 95 } 96 97 @Override setCheckable(boolean checkable)98 public void setCheckable(boolean checkable) { 99 refreshDrawableState(); 100 } 101 102 @Override setChecked(boolean checked)103 public void setChecked(boolean checked) { 104 refreshDrawableState(); 105 } 106 107 @Override setShortcut(boolean showShortcut, char shortcutKey)108 public void setShortcut(boolean showShortcut, char shortcutKey) { 109 } 110 111 @Override setIcon(Drawable icon)112 public void setIcon(Drawable icon) { 113 if (icon != null) { 114 icon = DrawableCompat.wrap(icon.getConstantState().newDrawable()).mutate(); 115 icon.setBounds(0, 0, mIconSize, mIconSize); 116 DrawableCompat.setTintList(icon, mIconTintList); 117 } 118 TextViewCompat.setCompoundDrawablesRelative(this, icon, null, null, null); 119 } 120 121 @Override prefersCondensedTitle()122 public boolean prefersCondensedTitle() { 123 return false; 124 } 125 126 @Override showsIcon()127 public boolean showsIcon() { 128 return true; 129 } 130 131 @Override onCreateDrawableState(int extraSpace)132 protected int[] onCreateDrawableState(int extraSpace) { 133 final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); 134 if (mItemData != null && mItemData.isCheckable() && mItemData.isChecked()) { 135 mergeDrawableStates(drawableState, CHECKED_STATE_SET); 136 } 137 return drawableState; 138 } 139 setIconTintList(ColorStateList tintList)140 void setIconTintList(ColorStateList tintList) { 141 mIconTintList = tintList; 142 if (mItemData != null) { 143 // Update the icon so that the tint takes effect 144 setIcon(mItemData.getIcon()); 145 } 146 } 147 } 148