mirror of
https://github.com/material-components/material-components-android.git
synced 2026-01-16 18:01:42 +08:00
295 lines
8.9 KiB
Java
295 lines
8.9 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.android.material.internal;
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import com.google.android.material.R;
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import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP;
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import android.content.Context;
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import android.content.res.ColorStateList;
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import android.graphics.Color;
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import android.graphics.drawable.ColorDrawable;
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import android.graphics.drawable.Drawable;
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import android.graphics.drawable.StateListDrawable;
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import androidx.annotation.Dimension;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.RestrictTo;
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import androidx.core.content.res.ResourcesCompat;
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import androidx.core.graphics.drawable.DrawableCompat;
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import androidx.core.view.AccessibilityDelegateCompat;
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import androidx.core.view.ViewCompat;
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import androidx.core.view.accessibility.AccessibilityEventCompat;
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import androidx.core.view.accessibility.AccessibilityNodeInfoCompat;
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import androidx.core.widget.TextViewCompat;
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import androidx.appcompat.view.menu.MenuItemImpl;
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import androidx.appcompat.view.menu.MenuView;
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import androidx.appcompat.widget.TooltipCompat;
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import android.util.AttributeSet;
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import android.util.TypedValue;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewStub;
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import android.widget.CheckedTextView;
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import android.widget.FrameLayout;
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/** @hide */
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@RestrictTo(LIBRARY_GROUP)
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public class NavigationMenuItemView extends ForegroundLinearLayout implements MenuView.ItemView {
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private static final int[] CHECKED_STATE_SET = {android.R.attr.state_checked};
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private int iconSize;
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private boolean needsEmptyIcon;
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boolean checkable;
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private final CheckedTextView textView;
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private FrameLayout actionArea;
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private MenuItemImpl itemData;
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private ColorStateList iconTintList;
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private boolean hasIconTintList;
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private Drawable emptyDrawable;
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private final AccessibilityDelegateCompat accessibilityDelegate =
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new AccessibilityDelegateCompat() {
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@Override
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public void onInitializeAccessibilityNodeInfo(
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View host, @NonNull AccessibilityNodeInfoCompat info) {
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super.onInitializeAccessibilityNodeInfo(host, info);
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info.setCheckable(checkable);
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}
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};
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public NavigationMenuItemView(@NonNull Context context) {
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this(context, null);
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}
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public NavigationMenuItemView(@NonNull Context context, @Nullable AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public NavigationMenuItemView(
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@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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setOrientation(HORIZONTAL);
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LayoutInflater.from(context).inflate(R.layout.design_navigation_menu_item, this, true);
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setIconSize(context.getResources().getDimensionPixelSize(R.dimen.design_navigation_icon_size));
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textView = findViewById(R.id.design_menu_item_text);
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textView.setDuplicateParentStateEnabled(true);
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ViewCompat.setAccessibilityDelegate(textView, accessibilityDelegate);
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}
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@Override
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public void initialize(@NonNull MenuItemImpl itemData, int menuType) {
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this.itemData = itemData;
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if (itemData.getItemId() > 0) {
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setId(itemData.getItemId());
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}
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setVisibility(itemData.isVisible() ? VISIBLE : GONE);
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if (getBackground() == null) {
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ViewCompat.setBackground(this, createDefaultBackground());
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}
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setCheckable(itemData.isCheckable());
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setChecked(itemData.isChecked());
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setEnabled(itemData.isEnabled());
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setTitle(itemData.getTitle());
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setIcon(itemData.getIcon());
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setActionView(itemData.getActionView());
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setContentDescription(itemData.getContentDescription());
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TooltipCompat.setTooltipText(this, itemData.getTooltipText());
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adjustAppearance();
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}
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private boolean shouldExpandActionArea() {
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return itemData.getTitle() == null
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&& itemData.getIcon() == null
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&& itemData.getActionView() != null;
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}
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private void adjustAppearance() {
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if (shouldExpandActionArea()) {
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// Expand the actionView area
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textView.setVisibility(View.GONE);
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if (actionArea != null) {
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LayoutParams params = (LayoutParams) actionArea.getLayoutParams();
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params.width = LayoutParams.MATCH_PARENT;
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actionArea.setLayoutParams(params);
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}
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} else {
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textView.setVisibility(View.VISIBLE);
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if (actionArea != null) {
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LayoutParams params = (LayoutParams) actionArea.getLayoutParams();
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params.width = LayoutParams.WRAP_CONTENT;
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actionArea.setLayoutParams(params);
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}
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}
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}
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public void recycle() {
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if (actionArea != null) {
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actionArea.removeAllViews();
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}
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textView.setCompoundDrawables(null, null, null, null);
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}
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private void setActionView(@Nullable View actionView) {
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if (actionView != null) {
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if (actionArea == null) {
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actionArea =
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(FrameLayout)
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((ViewStub) findViewById(R.id.design_menu_item_action_area_stub)).inflate();
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}
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actionArea.removeAllViews();
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actionArea.addView(actionView);
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}
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}
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@Nullable
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private StateListDrawable createDefaultBackground() {
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TypedValue value = new TypedValue();
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if (getContext()
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.getTheme()
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.resolveAttribute(androidx.appcompat.R.attr.colorControlHighlight, value, true)) {
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StateListDrawable drawable = new StateListDrawable();
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drawable.addState(CHECKED_STATE_SET, new ColorDrawable(value.data));
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drawable.addState(EMPTY_STATE_SET, new ColorDrawable(Color.TRANSPARENT));
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return drawable;
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}
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return null;
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}
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@Override
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public MenuItemImpl getItemData() {
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return itemData;
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}
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@Override
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public void setTitle(CharSequence title) {
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textView.setText(title);
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}
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@Override
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public void setCheckable(boolean checkable) {
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refreshDrawableState();
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if (this.checkable != checkable) {
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this.checkable = checkable;
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accessibilityDelegate.sendAccessibilityEvent(
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textView, AccessibilityEventCompat.TYPE_WINDOW_CONTENT_CHANGED);
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}
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}
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@Override
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public void setChecked(boolean checked) {
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refreshDrawableState();
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textView.setChecked(checked);
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}
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@Override
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public void setShortcut(boolean showShortcut, char shortcutKey) {}
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@Override
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public void setIcon(@Nullable Drawable icon) {
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if (icon != null) {
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if (hasIconTintList) {
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Drawable.ConstantState state = icon.getConstantState();
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icon = DrawableCompat.wrap(state == null ? icon : state.newDrawable()).mutate();
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DrawableCompat.setTintList(icon, iconTintList);
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}
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icon.setBounds(0, 0, iconSize, iconSize);
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} else if (needsEmptyIcon) {
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if (emptyDrawable == null) {
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emptyDrawable =
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ResourcesCompat.getDrawable(
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getResources(), R.drawable.navigation_empty_icon, getContext().getTheme());
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if (emptyDrawable != null) {
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emptyDrawable.setBounds(0, 0, iconSize, iconSize);
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}
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}
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icon = emptyDrawable;
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}
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TextViewCompat.setCompoundDrawablesRelative(textView, icon, null, null, null);
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}
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public void setIconSize(@Dimension int iconSize) {
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this.iconSize = iconSize;
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}
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@Override
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public boolean prefersCondensedTitle() {
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return false;
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}
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@Override
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public boolean showsIcon() {
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return true;
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}
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@Override
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protected int[] onCreateDrawableState(int extraSpace) {
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final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
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if (itemData != null && itemData.isCheckable() && itemData.isChecked()) {
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mergeDrawableStates(drawableState, CHECKED_STATE_SET);
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}
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return drawableState;
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}
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void setIconTintList(ColorStateList tintList) {
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iconTintList = tintList;
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hasIconTintList = iconTintList != null;
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if (itemData != null) {
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// Update the icon so that the tint takes effect
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setIcon(itemData.getIcon());
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}
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}
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public void setTextAppearance(int textAppearance) {
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TextViewCompat.setTextAppearance(textView, textAppearance);
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}
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public void setTextColor(ColorStateList colors) {
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textView.setTextColor(colors);
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}
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public void setNeedsEmptyIcon(boolean needsEmptyIcon) {
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this.needsEmptyIcon = needsEmptyIcon;
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}
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public void setHorizontalPadding(int padding) {
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setPadding(padding, 0, padding, 0);
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}
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public void setIconPadding(int padding) {
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textView.setCompoundDrawablePadding(padding);
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}
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public void setMaxLines(int maxLines) {
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textView.setMaxLines(maxLines);
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}
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}
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