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com.actionbarsherlock.internal.view.menu.ActionMenuItemView Maven / Gradle / Ivy
/*
* Copyright (C) 2010 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 com.actionbarsherlock.internal.view.menu;
import java.util.HashSet;
import java.util.Set;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.accessibility.AccessibilityEvent;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.Toast;
import com.actionbarsherlock.R;
import com.actionbarsherlock.internal.view.View_HasStateListenerSupport;
import com.actionbarsherlock.internal.view.View_OnAttachStateChangeListener;
import com.actionbarsherlock.internal.widget.CapitalizingButton;
import static com.actionbarsherlock.internal.ResourcesCompat.getResources_getBoolean;
/**
* @hide
*/
public class ActionMenuItemView extends LinearLayout
implements MenuView.ItemView, View.OnClickListener, View.OnLongClickListener,
ActionMenuView.ActionMenuChildView, View_HasStateListenerSupport {
//UNUSED private static final String TAG = "ActionMenuItemView";
private MenuItemImpl mItemData;
private CharSequence mTitle;
private MenuBuilder.ItemInvoker mItemInvoker;
private ImageButton mImageButton;
private CapitalizingButton mTextButton;
private boolean mAllowTextWithIcon;
private boolean mExpandedFormat;
private int mMinWidth;
private final Set mListeners = new HashSet();
public ActionMenuItemView(Context context) {
this(context, null);
}
public ActionMenuItemView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public ActionMenuItemView(Context context, AttributeSet attrs, int defStyle) {
//TODO super(context, attrs, defStyle);
super(context, attrs);
mAllowTextWithIcon = getResources_getBoolean(context,
R.bool.abs__config_allowActionMenuItemTextWithIcon);
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.SherlockActionMenuItemView, 0, 0);
mMinWidth = a.getDimensionPixelSize(
R.styleable.SherlockActionMenuItemView_android_minWidth, 0);
a.recycle();
}
@Override
public void addOnAttachStateChangeListener(View_OnAttachStateChangeListener listener) {
mListeners.add(listener);
}
@Override
public void removeOnAttachStateChangeListener(View_OnAttachStateChangeListener listener) {
mListeners.remove(listener);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
for (View_OnAttachStateChangeListener listener : mListeners) {
listener.onViewAttachedToWindow(this);
}
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
for (View_OnAttachStateChangeListener listener : mListeners) {
listener.onViewDetachedFromWindow(this);
}
}
@Override
public void onFinishInflate() {
mImageButton = (ImageButton) findViewById(R.id.abs__imageButton);
mTextButton = (CapitalizingButton) findViewById(R.id.abs__textButton);
mImageButton.setOnClickListener(this);
mTextButton.setOnClickListener(this);
mImageButton.setOnLongClickListener(this);
setOnClickListener(this);
setOnLongClickListener(this);
}
public MenuItemImpl getItemData() {
return mItemData;
}
public void initialize(MenuItemImpl itemData, int menuType) {
mItemData = itemData;
setIcon(itemData.getIcon());
setTitle(itemData.getTitleForItemView(this)); // Title only takes effect if there is no icon
setId(itemData.getItemId());
setVisibility(itemData.isVisible() ? View.VISIBLE : View.GONE);
setEnabled(itemData.isEnabled());
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
mImageButton.setEnabled(enabled);
mTextButton.setEnabled(enabled);
}
public void onClick(View v) {
if (mItemInvoker != null) {
mItemInvoker.invokeItem(mItemData);
}
}
public void setItemInvoker(MenuBuilder.ItemInvoker invoker) {
mItemInvoker = invoker;
}
public boolean prefersCondensedTitle() {
return true;
}
public void setCheckable(boolean checkable) {
// TODO Support checkable action items
}
public void setChecked(boolean checked) {
// TODO Support checkable action items
}
public void setExpandedFormat(boolean expandedFormat) {
if (mExpandedFormat != expandedFormat) {
mExpandedFormat = expandedFormat;
if (mItemData != null) {
mItemData.actionFormatChanged();
}
}
}
private void updateTextButtonVisibility() {
boolean visible = !TextUtils.isEmpty(mTextButton.getText());
visible &= mImageButton.getDrawable() == null ||
(mItemData.showsTextAsAction() && (mAllowTextWithIcon || mExpandedFormat));
mTextButton.setVisibility(visible ? VISIBLE : GONE);
}
public void setIcon(Drawable icon) {
mImageButton.setImageDrawable(icon);
if (icon != null) {
mImageButton.setVisibility(VISIBLE);
} else {
mImageButton.setVisibility(GONE);
}
updateTextButtonVisibility();
}
public boolean hasText() {
return mTextButton.getVisibility() != GONE;
}
public void setShortcut(boolean showShortcut, char shortcutKey) {
// Action buttons don't show text for shortcut keys.
}
public void setTitle(CharSequence title) {
mTitle = title;
mTextButton.setTextCompat(mTitle);
setContentDescription(mTitle);
updateTextButtonVisibility();
}
@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
onPopulateAccessibilityEvent(event);
return true;
}
@Override
public void onPopulateAccessibilityEvent(AccessibilityEvent event) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
super.onPopulateAccessibilityEvent(event);
}
final CharSequence cdesc = getContentDescription();
if (!TextUtils.isEmpty(cdesc)) {
event.getText().add(cdesc);
}
}
@Override
public boolean dispatchHoverEvent(MotionEvent event) {
// Don't allow children to hover; we want this to be treated as a single component.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
return onHoverEvent(event);
}
return false;
}
public boolean showsIcon() {
return true;
}
public boolean needsDividerBefore() {
return hasText() && mItemData.getIcon() == null;
}
public boolean needsDividerAfter() {
return hasText();
}
@Override
public boolean onLongClick(View v) {
if (hasText()) {
// Don't show the cheat sheet for items that already show text.
return false;
}
final int[] screenPos = new int[2];
final Rect displayFrame = new Rect();
getLocationOnScreen(screenPos);
getWindowVisibleDisplayFrame(displayFrame);
final Context context = getContext();
final int width = getWidth();
final int height = getHeight();
final int midy = screenPos[1] + height / 2;
final int screenWidth = context.getResources().getDisplayMetrics().widthPixels;
Toast cheatSheet = Toast.makeText(context, mItemData.getTitle(), Toast.LENGTH_SHORT);
if (midy < displayFrame.height()) {
// Show along the top; follow action buttons
cheatSheet.setGravity(Gravity.TOP | Gravity.RIGHT,
screenWidth - screenPos[0] - width / 2, height);
} else {
// Show along the bottom center
cheatSheet.setGravity(Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 0, height);
}
cheatSheet.show();
return true;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
final int specSize = MeasureSpec.getSize(widthMeasureSpec);
final int oldMeasuredWidth = getMeasuredWidth();
final int targetWidth = widthMode == MeasureSpec.AT_MOST ? Math.min(specSize, mMinWidth)
: mMinWidth;
if (widthMode != MeasureSpec.EXACTLY && mMinWidth > 0 && oldMeasuredWidth < targetWidth) {
// Remeasure at exactly the minimum width.
super.onMeasure(MeasureSpec.makeMeasureSpec(targetWidth, MeasureSpec.EXACTLY),
heightMeasureSpec);
}
}
}
