Clover/Chan/src/org/floens/chan/ui/fragment/ImageViewFragment.java

package org.floens.chan.ui.fragment;

import org.floens.chan.R;
import org.floens.chan.core.ChanPreferences;
import org.floens.chan.core.model.Post;
import org.floens.chan.ui.activity.ImageViewActivity;
import org.floens.chan.ui.adapter.ImageViewAdapter;
import org.floens.chan.ui.view.ThumbnailImageView;
import org.floens.chan.ui.view.ThumbnailImageView.ThumbnailImageViewCallback;

import android.app.Fragment;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.VideoView;

public class ImageViewFragment extends Fragment implements ThumbnailImageViewCallback {
    private Context context;
    private ImageViewActivity activity;

    private Post post;
    private boolean showProgressBar = true;
    private ThumbnailImageView imageView;
    private boolean isVideo = false;
    private boolean videoVisible = false;
    private boolean videoSetIconToPause = false;

    public static ImageViewFragment newInstance(Post post, ImageViewActivity activity, int index) {
        ImageViewFragment imageViewFragment = new ImageViewFragment();
        imageViewFragment.post = post;
        imageViewFragment.activity = activity;

        return imageViewFragment;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        if (post == null) {
            // No restoring
            return null;
        } else {
            context = inflater.getContext();

            imageView = new ThumbnailImageView(context);
            imageView.setCallback(this);

            int padding = (int) context.getResources().getDimension(R.dimen.image_view_padding);
            imageView.setPadding(padding, padding, padding, padding);

            return imageView;
        }
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        if (post == null) {
            // No restoring
        } else {
            if (!post.hasImage) {
                throw new IllegalArgumentException("Post has no image");
            }

            imageView.setThumbnail(post.thumbnailUrl);

            if (post.ext.equals("gif")) {
                imageView.setGif(post.imageUrl);
            } else if (post.ext.equals("webm")) {
                isVideo = true;
                activity.invalidateActionBar();
                showProgressBar(false);

                if (ChanPreferences.getVideoAutoPlay()) {
                    startVideo();
                }
            } else {
                imageView.setBigImage(post.imageUrl);
            }
        }
    }

    @Override
    public void onSaveInstanceState(Bundle bundle) {
        // https://code.google.com/p/android/issues/detail?id=19917
        bundle.putString("bug_19917", "bug_19917");
        super.onSaveInstanceState(bundle);
    }

    public void onSelected(ImageViewAdapter adapter, int position) {
        activity.setProgressBarIndeterminateVisibility(showProgressBar);

        String filename = post.filename + "." + post.ext;
        activity.getActionBar().setTitle(filename);

        String text = (position + 1) + "/" + adapter.getCount();
        activity.getActionBar().setSubtitle(text);

        activity.invalidateActionBar();
    }

    public void onPrepareOptionsMenu(int position, ImageViewAdapter adapter, Menu menu) {
        MenuItem item = menu.findItem(R.id.action_image_play_state);
        item.setVisible(isVideo);
        item.setEnabled(isVideo);

        if (imageView != null) {
            VideoView view = imageView.getVideoView();
            if (view != null) {
                item.setIcon((videoSetIconToPause || view.isPlaying()) ? R.drawable.ic_action_pause
                        : R.drawable.ic_action_play);
                videoSetIconToPause = false;
            }
        }
    }

    public void customOnOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == R.id.action_image_play_state) {
            if (!videoVisible) {
                startVideo();
            } else {
                VideoView view = imageView.getVideoView();
                if (view != null) {
                    if (!view.isPlaying()) {
                        view.start();
                    } else {
                        view.pause();
                    }
                }
            }

            activity.invalidateActionBar();
        }
    }

    private void startVideo() {
        videoVisible = true;
        imageView.setVideo(post.imageUrl);
    }

    public void showProgressBar(boolean e) {
        showProgressBar = e;
        activity.callOnSelect();
    }

    @Override
    public void onTap() {
        activity.finish();
    }

    @Override
    public void setProgress(boolean progress) {
        showProgressBar(progress);
    }

    @Override
    public void onVideoLoaded() {
        videoSetIconToPause = true;
        activity.invalidateActionBar();
    }
}