Newer
Older
package org.briarproject.android.blogs;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityOptionsCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.LinearLayoutManager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import org.briarproject.R;
import org.briarproject.android.ActivityComponent;
import org.briarproject.android.blogs.BlogPostAdapter.OnBlogPostClickListener;
import org.briarproject.android.controller.handler.UiResultHandler;
import org.briarproject.android.fragment.BaseFragment;
import org.briarproject.android.util.BriarRecyclerView;
import org.briarproject.api.blogs.Blog;
import java.util.Collection;
import javax.inject.Inject;
import static android.app.Activity.RESULT_OK;
import static android.support.design.widget.Snackbar.LENGTH_LONG;
import static android.support.v4.app.ActivityOptionsCompat.makeCustomAnimation;
import static org.briarproject.android.BriarActivity.GROUP_ID;
import static org.briarproject.android.blogs.BlogActivity.BLOG_NAME;
import static org.briarproject.android.blogs.BlogActivity.IS_MY_BLOG;
import static org.briarproject.android.blogs.BlogActivity.REQUEST_WRITE_POST;
public class FeedFragment extends BaseFragment implements
OnBlogPostClickListener, FeedController.OnBlogPostAddedListener {
public final static String TAG = FeedFragment.class.getName();
@Inject
FeedController feedController;
private BlogPostAdapter adapter;
private LinearLayoutManager layoutManager;
private BriarRecyclerView list;
private Blog personalBlog = null;
static FeedFragment newInstance() {
FeedFragment f = new FeedFragment();
Bundle args = new Bundle();
f.setArguments(args);
return f;
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
setHasOptionsMenu(true);
View v = inflater.inflate(R.layout.fragment_blog, container, false);
adapter = new BlogPostAdapter(getActivity(), this);
layoutManager = new LinearLayoutManager(getActivity());
list = (BriarRecyclerView) v.findViewById(R.id.postList);
list.setLayoutManager(layoutManager);
list.setAdapter(adapter);
list.setEmptyText(R.string.blogs_feed_empty_state);
return v;
}
@Override
public void injectFragment(ActivityComponent component) {
component.inject(this);
feedController.setOnBlogPostAddedListener(this);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// The BlogPostAddedEvent arrives when the controller is not listening
if (requestCode == REQUEST_WRITE_POST && resultCode == RESULT_OK) {
showSnackBar(R.string.blogs_blog_post_created);
}
}
@Override
public void onStart() {
super.onStart();
feedController.loadPersonalBlog(
new UiResultHandler<Blog>(getActivity()) {
@Override
public void onResultUi(Blog b) {
personalBlog = b;
}
});
}
@Override
public void onResume() {
super.onResume();
list.startPeriodicUpdate();
feedController.onResume();
feedController.loadPosts(
new UiResultHandler<Collection<BlogPostItem>>(getActivity()) {
@Override
public void onResultUi(Collection<BlogPostItem> posts) {
if (posts == null) {
// TODO show error?
} else if (posts.isEmpty()) {
list.showData();
} else {
adapter.addAll(posts);
}
}
});
}
@Override
public void onPause() {
super.onPause();
list.stopPeriodicUpdate();
// TODO save list position in database/preferences?
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.blogs_feed_actions, menu);
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
if (personalBlog == null) return false;
ActivityOptionsCompat options =
makeCustomAnimation(getActivity(), android.R.anim.slide_in_left,
android.R.anim.slide_out_right);
switch (item.getItemId()) {
case R.id.action_write_blog_post:
new Intent(getActivity(), WriteBlogPostActivity.class);
i1.putExtra(GROUP_ID, personalBlog.getId().getBytes());
i1.putExtra(BLOG_NAME, personalBlog.getName());
startActivityForResult(i1, REQUEST_WRITE_POST,
case R.id.action_rss_feeds_import:
Intent i2 =
new Intent(getActivity(), RssFeedImportActivity.class);
i2.putExtra(GROUP_ID, personalBlog.getId().getBytes());
startActivity(i2, options.toBundle());
return true;
case R.id.action_rss_feeds_manage:
Intent i3 =
new Intent(getActivity(), RssFeedManageActivity.class);
i3.putExtra(GROUP_ID, personalBlog.getId().getBytes());
startActivity(i3, options.toBundle());
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onBlogPostAdded(final BlogPostItem post) {
@Override
public void run() {
adapter.add(post);
showSnackBar(R.string.blogs_blog_post_received);
public void onBlogPostClick(int position, BlogPostItem post) {
byte[] groupId = post.getGroupId().getBytes();
String name = getString(R.string.blogs_personal_blog,
post.getAuthor().getName());
boolean myBlog = personalBlog != null &&
personalBlog.getId().equals(post.getGroupId());
Intent i = new Intent(getActivity(), BlogActivity.class);
i.putExtra(GROUP_ID, groupId);
i.putExtra(BLOG_NAME, name);
i.putExtra(IS_MY_BLOG, myBlog);
ActivityOptionsCompat options =
makeCustomAnimation(getActivity(),
android.R.anim.slide_in_left,
android.R.anim.slide_out_right);
startActivity(i, options.toBundle());
}
@Override
public String getUniqueTag() {
return TAG;
}
private void showSnackBar(int stringRes) {
int firstVisible =
layoutManager.findFirstCompletelyVisibleItemPosition();
int lastVisible = layoutManager.findLastCompletelyVisibleItemPosition();
int count = adapter.getItemCount();
boolean scroll = count > (lastVisible - firstVisible + 1);
Snackbar s = Snackbar.make(list, stringRes, LENGTH_LONG);
s.getView().setBackgroundResource(R.color.briar_primary);
if (scroll) {
OnClickListener onClick = new OnClickListener() {
@Override
public void onClick(View v) {
list.smoothScrollToPosition(0);
}
};
s.setActionTextColor(ContextCompat
.getColor(getContext(),
R.color.briar_button_positive));
s.setAction(R.string.blogs_blog_post_scroll_to, onClick);
}
s.show();
}