| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.support.design.internal; |
| |
| import android.content.Context; |
| import android.content.res.ColorStateList; |
| import android.graphics.Color; |
| import android.graphics.drawable.ColorDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.drawable.StateListDrawable; |
| import android.support.design.R; |
| import android.support.v4.content.res.ResourcesCompat; |
| import android.support.v4.graphics.drawable.DrawableCompat; |
| import android.support.v4.view.AccessibilityDelegateCompat; |
| import android.support.v4.view.ViewCompat; |
| import android.support.v4.view.accessibility.AccessibilityEventCompat; |
| import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat; |
| import android.support.v4.widget.TextViewCompat; |
| import android.support.v7.view.menu.MenuItemImpl; |
| import android.support.v7.view.menu.MenuView; |
| import android.util.AttributeSet; |
| import android.util.TypedValue; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewStub; |
| import android.widget.CheckedTextView; |
| import android.widget.FrameLayout; |
| |
| /** |
| * @hide |
| */ |
| public class NavigationMenuItemView extends ForegroundLinearLayout implements MenuView.ItemView { |
| |
| private static final int[] CHECKED_STATE_SET = {android.R.attr.state_checked}; |
| |
| private final int mIconSize; |
| |
| private boolean mNeedsEmptyIcon; |
| |
| private boolean mCheckable; |
| |
| private final CheckedTextView mTextView; |
| |
| private FrameLayout mActionArea; |
| |
| private MenuItemImpl mItemData; |
| |
| private ColorStateList mIconTintList; |
| |
| private boolean mHasIconTintList; |
| |
| private Drawable mEmptyDrawable; |
| |
| private final AccessibilityDelegateCompat mAccessibilityDelegate |
| = new AccessibilityDelegateCompat() { |
| |
| @Override |
| public void onInitializeAccessibilityNodeInfo(View host, |
| AccessibilityNodeInfoCompat info) { |
| super.onInitializeAccessibilityNodeInfo(host, info); |
| info.setCheckable(mCheckable); |
| } |
| |
| }; |
| |
| public NavigationMenuItemView(Context context) { |
| this(context, null); |
| } |
| |
| public NavigationMenuItemView(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public NavigationMenuItemView(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| setOrientation(HORIZONTAL); |
| LayoutInflater.from(context).inflate(R.layout.design_navigation_menu_item, this, true); |
| mIconSize = context.getResources().getDimensionPixelSize( |
| R.dimen.design_navigation_icon_size); |
| mTextView = (CheckedTextView) findViewById(R.id.design_menu_item_text); |
| mTextView.setDuplicateParentStateEnabled(true); |
| ViewCompat.setAccessibilityDelegate(mTextView, mAccessibilityDelegate); |
| } |
| |
| @Override |
| public void initialize(MenuItemImpl itemData, int menuType) { |
| mItemData = itemData; |
| |
| setVisibility(itemData.isVisible() ? VISIBLE : GONE); |
| |
| if (getBackground() == null) { |
| ViewCompat.setBackground(this, createDefaultBackground()); |
| } |
| |
| setCheckable(itemData.isCheckable()); |
| setChecked(itemData.isChecked()); |
| setEnabled(itemData.isEnabled()); |
| setTitle(itemData.getTitle()); |
| setIcon(itemData.getIcon()); |
| setActionView(itemData.getActionView()); |
| adjustAppearance(); |
| } |
| |
| private boolean shouldExpandActionArea() { |
| return mItemData.getTitle() == null && |
| mItemData.getIcon() == null && |
| mItemData.getActionView() != null; |
| } |
| |
| private void adjustAppearance() { |
| if (shouldExpandActionArea()) { |
| // Expand the actionView area |
| mTextView.setVisibility(View.GONE); |
| if (mActionArea != null) { |
| LayoutParams params = (LayoutParams) mActionArea.getLayoutParams(); |
| params.width = LayoutParams.MATCH_PARENT; |
| mActionArea.setLayoutParams(params); |
| } |
| } else { |
| mTextView.setVisibility(View.VISIBLE); |
| if (mActionArea != null) { |
| LayoutParams params = (LayoutParams) mActionArea.getLayoutParams(); |
| params.width = LayoutParams.WRAP_CONTENT; |
| mActionArea.setLayoutParams(params); |
| } |
| } |
| } |
| |
| public void recycle() { |
| if (mActionArea != null) { |
| mActionArea.removeAllViews(); |
| } |
| mTextView.setCompoundDrawables(null, null, null, null); |
| } |
| |
| private void setActionView(View actionView) { |
| if (actionView != null) { |
| if (mActionArea == null) { |
| mActionArea = (FrameLayout) ((ViewStub) findViewById( |
| R.id.design_menu_item_action_area_stub)).inflate(); |
| } |
| mActionArea.removeAllViews(); |
| mActionArea.addView(actionView); |
| } |
| } |
| |
| private StateListDrawable createDefaultBackground() { |
| TypedValue value = new TypedValue(); |
| if (getContext().getTheme().resolveAttribute( |
| android.support.v7.appcompat.R.attr.colorControlHighlight, value, true)) { |
| StateListDrawable drawable = new StateListDrawable(); |
| drawable.addState(CHECKED_STATE_SET, new ColorDrawable(value.data)); |
| drawable.addState(EMPTY_STATE_SET, new ColorDrawable(Color.TRANSPARENT)); |
| return drawable; |
| } |
| return null; |
| } |
| |
| @Override |
| public MenuItemImpl getItemData() { |
| return mItemData; |
| } |
| |
| @Override |
| public void setTitle(CharSequence title) { |
| mTextView.setText(title); |
| } |
| |
| @Override |
| public void setCheckable(boolean checkable) { |
| refreshDrawableState(); |
| if (mCheckable != checkable) { |
| mCheckable = checkable; |
| mAccessibilityDelegate.sendAccessibilityEvent(mTextView, |
| AccessibilityEventCompat.TYPE_WINDOW_CONTENT_CHANGED); |
| } |
| } |
| |
| @Override |
| public void setChecked(boolean checked) { |
| refreshDrawableState(); |
| mTextView.setChecked(checked); |
| } |
| |
| @Override |
| public void setShortcut(boolean showShortcut, char shortcutKey) { |
| } |
| |
| @Override |
| public void setIcon(Drawable icon) { |
| if (icon != null) { |
| if (mHasIconTintList) { |
| Drawable.ConstantState state = icon.getConstantState(); |
| icon = DrawableCompat.wrap(state == null ? icon : state.newDrawable()).mutate(); |
| DrawableCompat.setTintList(icon, mIconTintList); |
| } |
| icon.setBounds(0, 0, mIconSize, mIconSize); |
| } else if (mNeedsEmptyIcon) { |
| if (mEmptyDrawable == null) { |
| mEmptyDrawable = ResourcesCompat.getDrawable(getResources(), |
| R.drawable.navigation_empty_icon, getContext().getTheme()); |
| if (mEmptyDrawable != null) { |
| mEmptyDrawable.setBounds(0, 0, mIconSize, mIconSize); |
| } |
| } |
| icon = mEmptyDrawable; |
| } |
| TextViewCompat.setCompoundDrawablesRelative(mTextView, icon, null, null, null); |
| } |
| |
| @Override |
| public boolean prefersCondensedTitle() { |
| return false; |
| } |
| |
| @Override |
| public boolean showsIcon() { |
| return true; |
| } |
| |
| @Override |
| protected int[] onCreateDrawableState(int extraSpace) { |
| final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); |
| if (mItemData != null && mItemData.isCheckable() && mItemData.isChecked()) { |
| mergeDrawableStates(drawableState, CHECKED_STATE_SET); |
| } |
| return drawableState; |
| } |
| |
| void setIconTintList(ColorStateList tintList) { |
| mIconTintList = tintList; |
| mHasIconTintList = mIconTintList != null; |
| if (mItemData != null) { |
| // Update the icon so that the tint takes effect |
| setIcon(mItemData.getIcon()); |
| } |
| } |
| |
| public void setTextAppearance(Context context, int textAppearance) { |
| mTextView.setTextAppearance(context, textAppearance); |
| } |
| |
| public void setTextColor(ColorStateList colors) { |
| mTextView.setTextColor(colors); |
| } |
| |
| public void setNeedsEmptyIcon(boolean needsEmptyIcon) { |
| mNeedsEmptyIcon = needsEmptyIcon; |
| } |
| |
| } |