conversations-classic/src/main/java/eu/siacs/conversations/ui/ConversationsOverviewFragment.java
2018-09-12 14:37:41 +02:00

364 lines
13 KiB
Java

/*
* Copyright (c) 2018, Daniel Gultsch All rights reserved.
*
* 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.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* 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 HOLDER 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.
*/
package eu.siacs.conversations.ui;
import android.app.Activity;
import android.app.Fragment;
import android.content.Intent;
import android.databinding.DataBindingUtil;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.helper.ItemTouchHelper;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import java.util.ArrayList;
import java.util.List;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.R;
import eu.siacs.conversations.databinding.FragmentConversationsOverviewBinding;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.ui.adapter.ConversationAdapter;
import eu.siacs.conversations.ui.interfaces.OnConversationArchived;
import eu.siacs.conversations.ui.interfaces.OnConversationSelected;
import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
import eu.siacs.conversations.ui.util.PendingActionHelper;
import eu.siacs.conversations.ui.util.PendingItem;
import eu.siacs.conversations.ui.util.ScrollState;
import eu.siacs.conversations.ui.util.StyledAttributes;
import eu.siacs.conversations.utils.ThemeHelper;
import static android.support.v7.widget.helper.ItemTouchHelper.LEFT;
import static android.support.v7.widget.helper.ItemTouchHelper.RIGHT;
public class ConversationsOverviewFragment extends XmppFragment {
private static final String STATE_SCROLL_POSITION = ConversationsOverviewFragment.class.getName()+".scroll_state";
private final List<Conversation> conversations = new ArrayList<>();
private final PendingItem<Conversation> swipedConversation = new PendingItem<>();
private final PendingItem<ScrollState> pendingScrollState = new PendingItem<>();
private FragmentConversationsOverviewBinding binding;
private ConversationAdapter conversationsAdapter;
private XmppActivity activity;
private float mSwipeEscapeVelocity = 0f;
private PendingActionHelper pendingActionHelper = new PendingActionHelper();
private ItemTouchHelper.SimpleCallback callback = new ItemTouchHelper.SimpleCallback(0,LEFT|RIGHT) {
@Override
public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
//todo maybe we can manually changing the position of the conversation
return false;
}
@Override
public float getSwipeEscapeVelocity (float defaultValue) {
return mSwipeEscapeVelocity;
}
@Override
public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder,
float dX, float dY, int actionState, boolean isCurrentlyActive) {
super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
if(actionState != ItemTouchHelper.ACTION_STATE_IDLE){
Paint paint = new Paint();
paint.setColor(StyledAttributes.getColor(activity,R.attr.conversations_overview_background));
paint.setStyle(Paint.Style.FILL);
c.drawRect(viewHolder.itemView.getLeft(),viewHolder.itemView.getTop()
,viewHolder.itemView.getRight(),viewHolder.itemView.getBottom(), paint);
}
}
@Override
public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
super.clearView(recyclerView, viewHolder);
viewHolder.itemView.setAlpha(1f);
}
@Override
public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
pendingActionHelper.execute();
int position = viewHolder.getLayoutPosition();
try {
swipedConversation.push(conversations.get(position));
} catch (IndexOutOfBoundsException e) {
return;
}
conversationsAdapter.remove(swipedConversation.peek(), position);
activity.xmppConnectionService.markRead(swipedConversation.peek());
if (position == 0 && conversationsAdapter.getItemCount() == 0) {
final Conversation c = swipedConversation.pop();
activity.xmppConnectionService.archiveConversation(c);
return;
}
final boolean formerlySelected = ConversationFragment.getConversation(getActivity()) == swipedConversation.peek();
if (activity instanceof OnConversationArchived) {
((OnConversationArchived) activity).onConversationArchived(swipedConversation.peek());
}
boolean isMuc = swipedConversation.peek().getMode() == Conversation.MODE_MULTI;
int title = isMuc ? R.string.title_undo_swipe_out_muc : R.string.title_undo_swipe_out_conversation;
final Snackbar snackbar = Snackbar.make(binding.list, title, 5000)
.setAction(R.string.undo, v -> {
pendingActionHelper.undo();
Conversation c = swipedConversation.pop();
conversationsAdapter.insert(c, position);
if (formerlySelected) {
if (activity instanceof OnConversationSelected) {
((OnConversationSelected) activity).onConversationSelected(c);
}
}
LinearLayoutManager layoutManager = (LinearLayoutManager) binding.list.getLayoutManager();
if (position > layoutManager.findLastVisibleItemPosition()) {
binding.list.smoothScrollToPosition(position);
}
})
.addCallback(new Snackbar.Callback() {
@Override
public void onDismissed(Snackbar transientBottomBar, int event) {
switch (event) {
case DISMISS_EVENT_SWIPE:
case DISMISS_EVENT_TIMEOUT:
pendingActionHelper.execute();
break;
}
}
});
pendingActionHelper.push(() -> {
if (snackbar.isShownOrQueued()) {
snackbar.dismiss();
}
Conversation c = swipedConversation.pop();
if(c != null){
if (!c.isRead() && c.getMode() == Conversation.MODE_SINGLE) {
return;
}
activity.xmppConnectionService.archiveConversation(c);
}
});
ThemeHelper.fix(snackbar);
snackbar.show();
}
};
private ItemTouchHelper touchHelper = new ItemTouchHelper(callback);
public static Conversation getSuggestion(Activity activity) {
final Conversation exception;
Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
if (fragment != null && fragment instanceof ConversationsOverviewFragment) {
exception = ((ConversationsOverviewFragment) fragment).swipedConversation.peek();
} else {
exception = null;
}
return getSuggestion(activity, exception);
}
public static Conversation getSuggestion(Activity activity, Conversation exception) {
Fragment fragment = activity.getFragmentManager().findFragmentById(R.id.main_fragment);
if (fragment != null && fragment instanceof ConversationsOverviewFragment) {
List<Conversation> conversations = ((ConversationsOverviewFragment) fragment).conversations;
if (conversations.size() > 0) {
Conversation suggestion = conversations.get(0);
if (suggestion == exception) {
if (conversations.size() > 1) {
return conversations.get(1);
}
} else {
return suggestion;
}
}
}
return null;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
if (savedInstanceState == null) {
return;
}
pendingScrollState.push(savedInstanceState.getParcelable(STATE_SCROLL_POSITION));
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
if (activity instanceof XmppActivity) {
this.activity = (XmppActivity) activity;
} else {
throw new IllegalStateException("Trying to attach fragment to activity that is not an XmppActivity");
}
}
@Override
public void onPause() {
Log.d(Config.LOGTAG,"ConversationsOverviewFragment.onPause()");
pendingActionHelper.execute();
super.onPause();
}
@Override
public void onDetach() {
super.onDetach();
this.activity = null;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
@Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
this.mSwipeEscapeVelocity = getResources().getDimension(R.dimen.swipe_escape_velocity);
this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_conversations_overview, container, false);
this.binding.fab.setOnClickListener((view) -> StartConversationActivity.launch(getActivity()));
this.conversationsAdapter = new ConversationAdapter(this.activity, this.conversations);
this.conversationsAdapter.setConversationClickListener((view, conversation) -> {
if (activity instanceof OnConversationSelected) {
((OnConversationSelected) activity).onConversationSelected(conversation);
} else {
Log.w(ConversationsOverviewFragment.class.getCanonicalName(), "Activity does not implement OnConversationSelected");
}
});
this.binding.list.setAdapter(this.conversationsAdapter);
this.binding.list.setLayoutManager(new LinearLayoutManager(getActivity(),LinearLayoutManager.VERTICAL,false));
this.touchHelper.attachToRecyclerView(this.binding.list);
return binding.getRoot();
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
menuInflater.inflate(R.menu.fragment_conversations_overview, menu);
}
@Override
public void onBackendConnected() {
refresh();
}
@Override
public void onSaveInstanceState(Bundle bundle) {
super.onSaveInstanceState(bundle);
ScrollState scrollState = getScrollState();
if (scrollState != null) {
bundle.putParcelable(STATE_SCROLL_POSITION, scrollState);
}
}
private ScrollState getScrollState() {
if (this.binding == null) {
return null;
}
LinearLayoutManager layoutManager = (LinearLayoutManager) this.binding.list.getLayoutManager();
int position = layoutManager.findFirstVisibleItemPosition();
final View view = this.binding.list.getChildAt(0);
if (view != null) {
return new ScrollState(position,view.getTop());
} else {
return new ScrollState(position, 0);
}
}
@Override
public void onStart() {
super.onStart();
Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onStart()");
if (activity.xmppConnectionService != null) {
refresh();
}
}
@Override
public void onResume() {
super.onResume();
Log.d(Config.LOGTAG, "ConversationsOverviewFragment.onResume()");
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
if (MenuDoubleTabUtil.shouldIgnoreTap()) {
return false;
}
switch (item.getItemId()) {
case R.id.action_search:
startActivity(new Intent(getActivity(), SearchActivity.class));
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
void refresh() {
if (this.binding == null || this.activity == null) {
Log.d(Config.LOGTAG,"ConversationsOverviewFragment.refresh() skipped updated because view binding or activity was null");
return;
}
this.activity.xmppConnectionService.populateWithOrderedConversations(this.conversations);
Conversation removed = this.swipedConversation.peek();
if (removed != null) {
if (removed.isRead()) {
this.conversations.remove(removed);
} else {
pendingActionHelper.execute();
}
}
this.conversationsAdapter.notifyDataSetChanged();
ScrollState scrollState = pendingScrollState.pop();
if (scrollState != null) {
setScrollPosition(scrollState);
}
}
private void setScrollPosition(ScrollState scrollPosition) {
if (scrollPosition != null) {
LinearLayoutManager layoutManager = (LinearLayoutManager) binding.list.getLayoutManager();
layoutManager.scrollToPositionWithOffset(scrollPosition.position, scrollPosition.offset);
}
}
}