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SOFTWARE LICENSE ---------------- Copyright (C) 2012, 2013, 2014 Younghyung Cho. <yhcting77@gmail.com> All rights reserved. This file is part of FeedHive This program is licensed under the FreeBSD l...
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/****************************************************************************** * Copyright (C) 2012, 2013, 2014//from ww w. ja va 2 s . c om * Younghyung Cho. <yhcting77@gmail.com> * All rights reserved. * * This file is part of FeedHive * * This program is licensed under the FreeBSD license * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation * are those of the authors and should not be interpreted as representing * official policies, either expressed or implied, of the FreeBSD Project. *****************************************************************************/ package free.yhc.feeder; import static free.yhc.feeder.model.Utils.eAssert; import java.io.File; import android.content.Context; import android.database.Cursor; import android.database.StaleDataException; import android.graphics.drawable.AnimationDrawable; import android.util.AttributeSet; import android.view.View; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import free.yhc.feeder.db.ColumnChannel; import free.yhc.feeder.db.ColumnItem; import free.yhc.feeder.db.DBPolicy; import free.yhc.feeder.model.BaseBGTask; import free.yhc.feeder.model.ContentsManager; import free.yhc.feeder.model.Feed; import free.yhc.feeder.model.RTTask; import free.yhc.feeder.model.UnexpectedExceptionHandler; import free.yhc.feeder.model.Utils; public class ItemListAdapter extends AsyncCursorListAdapter implements AsyncCursorAdapter.ItemBuilder { private static final boolean DBG = false; private static final Utils.Logger P = new Utils.Logger(ItemListAdapter.class); private final DBPolicy mDbp = DBPolicy.get(); private final RTTask mRtt = RTTask.get(); private final OnActionListener mActionListener; // To avoid using mutex in "DownloadProgressListener", mDummyTextView is used. // See "DownloadProgressListener" for details private final TextView mDummyTextView; private final View.OnClickListener mFavOnClick; public static class ProgressTextView extends TextView { private DownloadProgressListener _mListener = null; public ProgressTextView(Context context, AttributeSet attrs) { super(context, attrs); } void changeListener(DownloadProgressListener newListener) { if (null != _mListener) _mListener.setTextView(null); _mListener = newListener; _mListener.setTextView(this); } } private static class ItemInfo { long id = -1; long state = 0; long cid = -1; boolean hasDnFile = false; boolean bChannel = false; String cTitle = ""; String title = ""; String desc = ""; String pubDate = ""; String link = ""; String enclosureLen = ""; String enclosureUrl = ""; String enclosureType = ""; } private class DownloadProgressListener extends BaseBGTask.OnEventListener { // mDummyTextView is used for default 'tv' value. // If not, 'null' should be used. // In this case, code in 'onProgress' should be like below // if (null != tv) // tv.setText(....) // Then, above two line of code should be preserved with mutex or 'synchronized' // Why? // 'tv' value can be changed after (null != tv) comparison. // To avoid this synchronization, mDummyTextView is used. // Keep in mind that assigning reference is atomic operation in Java. private volatile TextView tv = mDummyTextView; DownloadProgressListener(TextView tv) { this.tv = tv; } void setTextView(TextView tv) { if (null == tv) this.tv = mDummyTextView; else this.tv = tv; } @Override public void onProgress(BaseBGTask task, int progress) { if (0 > progress) // Fail to get progress. tv.setText("??%"); else tv.setText(progress + "%"); tv.postInvalidate(); } } interface OnActionListener { void onFavoriteClick(ItemListAdapter adapter, ImageView ibtn, int position, long id, long state); } public static class ImageViewFavorite extends ImageView { long id = -1; long state = 0; int position = -1; public ImageViewFavorite(Context context, AttributeSet attrs) { super(context, attrs); } } private final int getTitleColor(long stateFlag) { return Feed.Item.isStateOpenNew(stateFlag)? R.color.title_color_new: R.color.text_color_opened; } private final int getTextColor(long stateFlag) { return Feed.Item.isStateOpenNew(stateFlag)? R.color.text_color_new: R.color.text_color_opened; } @Override public String dump(UnexpectedExceptionHandler.DumpLevel lv) { return super.dump(lv) + "[ ItemListAdapter ]"; } public ItemListAdapter(Context context, Cursor cursor, ListView lv, final int dataReqSz, final int maxArrSz, OnActionListener listener) { super(context, cursor, null, R.layout.item_row, lv, new ItemInfo(), dataReqSz, maxArrSz, false); setItemBuilder(this); mDummyTextView = new TextView(context); mActionListener = listener; mFavOnClick = new View.OnClickListener() { @Override public void onClick(View v) { if (null == mActionListener) return; ImageViewFavorite iv = (ImageViewFavorite)v; mActionListener.onFavoriteClick(ItemListAdapter.this, iv, iv.position, iv.id, iv.state); } }; } public long getItemInfo_id(int position) { return ((ItemInfo)super.getItem(position)).id; } public long getItemInfo_cid(int position) { return ((ItemInfo)super.getItem(position)).cid; } public String getItemInfo_link(int position) { return ((ItemInfo)super.getItem(position)).link; } public String getItemInfo_encUrl(int position) { return ((ItemInfo)super.getItem(position)).enclosureUrl; } public String getItemInfo_encType(int position) { return ((ItemInfo)super.getItem(position)).enclosureType; } public int findPosition(long id) { for (int i = 0; i < getCount(); i++) { if (getItemInfo_id(i) == id) return i; } return -1; } public int findItemId(long id) { int pos = findPosition(id); if (pos < 0) return -1; else return (int)getItemId(pos); } public void updateItemHasDnFile(int position, boolean v) { ItemInfo ii = (ItemInfo)getItem(position); if (null != ii) ii.hasDnFile = v; } public void updateItemState(int position, long v) { ItemInfo ii = (ItemInfo)getItem(position); if (null != ii) ii.state = v; } @Override public Object buildItem(AsyncCursorAdapter adapter, Cursor c) { //logI("ChannelListAdapter : buildItem - START"); ItemInfo i = new ItemInfo(); try { i.id = getCursorLong(c, ColumnItem.ID); i.state = mDbp.getItemInfoLong(i.id, ColumnItem.STATE); i.title = getCursorString(c, ColumnChannel.TITLE); i.desc = getCursorString(c, ColumnChannel.DESCRIPTION); i.pubDate = getCursorString(c, ColumnItem.PUBDATE); i.enclosureLen = getCursorString(c, ColumnItem.ENCLOSURE_LENGTH); i.enclosureUrl = getCursorString(c, ColumnItem.ENCLOSURE_URL); i.link = getCursorString(c, ColumnItem.LINK); // This runs on background thread. // So, assert on this thread doesn't stop application and reporting bug. // Therefore, this should be endurable for unexpected result. File df = ContentsManager.get().getItemInfoDataFile(i.id); i.hasDnFile = null != df && df.exists(); int cidx = c.getColumnIndex(ColumnItem.CHANNELID.getName()); i.bChannel = (0 <= cidx); if (i.bChannel) { i.cid = c.getLong(cidx); i.cTitle = mDbp.getChannelInfoString(i.cid, ColumnChannel.TITLE); } } catch (StaleDataException e) { eAssert(false); } //logI("ChannelListAdapter : buildItem - END"); return i; } @Override public void destroyItem(AsyncCursorAdapter adapter, Object item) { // Nothing to do } @Override public int requestData(final AsyncAdapter adapter, Object priv, long nrseq, final int from, final int sz) { // Override to use "delayed item update" int ret; try { mDbp.getDelayedChannelUpdate(); ret = super.requestData(adapter, priv, nrseq, from, sz); } finally { mDbp.putDelayedChannelUpdate(); } return ret; } @Override public void bindView(View v, final Context context, int position) { if (!preBindView(v, context, position)) return; ItemInfo ii = (ItemInfo)getItem(position); final boolean favorite = Feed.Item.isStatFavOn(ii.state); final TextView channelv = (TextView)v.findViewById(R.id.channel); final TextView titlev = (TextView)v.findViewById(R.id.title); final TextView descv = (TextView)v.findViewById(R.id.description); final ProgressTextView progressv = (ProgressTextView)v.findViewById(R.id.progress); final TextView datev = (TextView)v.findViewById(R.id.date); final TextView infov = (TextView)v.findViewById(R.id.info); final ImageView imgv = (ImageView)v.findViewById(R.id.image); final ImageViewFavorite favImgv = (ImageViewFavorite)v.findViewById(R.id.favorite); if (ii.bChannel) { channelv.setVisibility(View.VISIBLE); channelv.setText(ii.cTitle); } else channelv.setVisibility(View.GONE); // Set favorite button. favImgv.id = ii.id; favImgv.state = ii.state; favImgv.position = position; favImgv.setOnClickListener(mFavOnClick); if (favorite) favImgv.setImageResource(R.drawable.favorite_on); else favImgv.setImageResource(R.drawable.favorite_off); titlev.setText(ii.title); descv.setText(ii.desc); datev.setText(ii.pubDate); if (ii.enclosureUrl.isEmpty()) infov.setText("html"); else infov.setText(Utils.getExtentionFromUrl(ii.enclosureUrl) + " : " + ii.enclosureLen); // In case of enclosure, icon is decided by file is in the disk or not. // TODO: // add proper icon (or representation...) Animation anim = imgv.getAnimation(); if (null != anim) { anim.cancel(); imgv.setAnimation(null); } imgv.setAlpha(1.0f); progressv.setVisibility(View.GONE); if (ii.hasDnFile) { imgv.setImageResource(R.drawable.ic_save); } else { RTTask.TaskState dnState = mRtt.getState(ii.id, RTTask.Action.DOWNLOAD); switch(dnState) { case IDLE: imgv.setImageResource(R.drawable.download_anim0); break; case READY: imgv.setImageResource(R.drawable.ic_pause); break; case RUNNING: imgv.setImageResource(R.anim.download); // Why "post runnable and start animation?" // In Android 4.0.3 (ICS) // putting "((AnimationDrawable)img.getDrawable()).start();" is enough. // // In Android 3.2 (HC) // without using 'post', animation doesn't start when start itemListActivity. // It's definitely HC bug. // In this case, below code works. // // Another interesting point is, using 'imgv.post' doesn't work. // But, in case of using handler, it works. // I think it's definitely Android platform's BUG! // // This program's target platform is ICS /* Utils.getUiHandler().post(new Runnable() { @Override public void run() { ((AnimationDrawable)imgv.getDrawable()).start(); } }); */ ((AnimationDrawable)imgv.getDrawable()).start(); // bind event listener to show progress DownloadProgressListener listener = new DownloadProgressListener(progressv); progressv.changeListener(listener); mRtt.unbind(progressv); mRtt.bind(ii.id, RTTask.Action.DOWNLOAD, progressv, listener); progressv.setVisibility(View.VISIBLE); break; case FAILED: imgv.setImageResource(R.drawable.ic_info); break; case CANCELING: imgv.setImageResource(R.drawable.ic_block); imgv.startAnimation(AnimationUtils.loadAnimation(context, R.anim.fade_inout)); break; default: eAssert(false); } } titlev.setTextColor(context.getResources().getColor(getTitleColor(ii.state))); descv.setTextColor(context.getResources().getColor(getTextColor(ii.state))); datev.setTextColor(context.getResources().getColor(getTextColor(ii.state))); infov.setTextColor(context.getResources().getColor(getTextColor(ii.state))); } }