129 lines
4.1 KiB
Java
129 lines
4.1 KiB
Java
/*
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* Copyright (C) 2009 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.android.email.activity;
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import com.android.email.R;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.view.MotionEvent;
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import android.widget.RelativeLayout;
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/**
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* This custom View is the list item for the MessageList activity, and serves two purposes:
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* 1. It's a container to store message metadata (e.g. the ids of the message, mailbox, & account)
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* 2. It handles internal clicks such as the checkbox or the favorite star
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*/
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public class MessageListItem extends RelativeLayout {
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public long mMessageId;
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public long mMailboxId;
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public long mAccountId;
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public boolean mRead;
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public boolean mFavorite;
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public boolean mSelected;
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private boolean mAllowBatch;
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private MessageList.MessageListAdapter mAdapter;
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private boolean mDownEvent;
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private boolean mCachedViewPositions;
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private int mCheckRight;
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private int mStarLeft;
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private final static float CHECKMARK_PAD = 5.0F;
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private final static float STAR_PAD = 5.0F;
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public MessageListItem(Context context) {
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super(context);
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}
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public MessageListItem(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public MessageListItem(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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}
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/**
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* Called by the adapter at bindView() time
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*
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* @param adapter the adapter that creates this view
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* @param allowBatch true if multi-select is enabled for this list
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*/
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public void bindViewInit(MessageList.MessageListAdapter adapter, boolean allowBatch) {
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mAdapter = adapter;
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mAllowBatch = allowBatch;
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mCachedViewPositions = false;
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}
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/**
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* Overriding this method allows us to "catch" clicks in the checkbox or star
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* and process them accordingly.
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*/
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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boolean handled = false;
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int touchX = (int) event.getX();
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if (!mCachedViewPositions) {
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float paddingScale = getContext().getResources().getDisplayMetrics().density;
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int checkPadding = (int) ((CHECKMARK_PAD * paddingScale) + 0.5);
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int starPadding = (int) ((STAR_PAD * paddingScale) + 0.5);
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mCheckRight = findViewById(R.id.selected).getRight() + checkPadding;
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mStarLeft = findViewById(R.id.favorite).getLeft() - starPadding;
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mCachedViewPositions = true;
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}
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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mDownEvent = true;
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if ((mAllowBatch && touchX < mCheckRight) || touchX > mStarLeft) {
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handled = true;
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}
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break;
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case MotionEvent.ACTION_CANCEL:
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mDownEvent = false;
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break;
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case MotionEvent.ACTION_UP:
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if (mDownEvent) {
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if (mAllowBatch && touchX < mCheckRight) {
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mSelected = !mSelected;
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mAdapter.updateSelected(this, mSelected);
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handled = true;
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} else if (touchX > mStarLeft) {
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mFavorite = !mFavorite;
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mAdapter.updateFavorite(this, mFavorite);
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handled = true;
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}
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}
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break;
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}
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if (handled) {
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postInvalidate();
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} else {
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handled = super.onTouchEvent(event);
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}
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return handled;
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}
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}
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