FileIconHelper.java

/*
 * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
 *
 * This file is part of FileExplorer.
 *
 * FileExplorer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * FileExplorer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with SwiFTP.  If not, see <http://www.gnu.org/licenses/>.
 */

package net.micode.fileexplorer;


import net.micode.fileexplorer.FileCategoryHelper.FileCategory;
import net.micode.fileexplorer.FileIconLoader.IconLoadFinishListener;

import android.content.Context;
import android.view.View;
import android.widget.ImageView;

import java.util.HashMap;

public class FileIconHelper implements IconLoadFinishListener {

    private static final String LOG_TAG = "FileIconHelper";

    private static HashMap<ImageView, ImageView> imageFrames = new HashMap<ImageView, ImageView>();

    private static HashMap<String, Integer> fileExtToIcons = new HashMap<String, Integer>();

    private FileIconLoader mIconLoader;

    static {
        addItem(new String[] {
            "mp3"
        }, R.drawable.file_icon_mp3);
        addItem(new String[] {
            "wma"
        }, R.drawable.file_icon_wma);
        addItem(new String[] {
            "wav"
        }, R.drawable.file_icon_wav);
        addItem(new String[] {
            "mid"
        }, R.drawable.file_icon_mid);
        addItem(new String[] {
                "mp4", "wmv", "mpeg", "m4v", "3gp", "3gpp", "3g2", "3gpp2", "asf"
        }, R.drawable.file_icon_video);
        addItem(new String[] {
                "jpg", "jpeg", "gif", "png", "bmp", "wbmp"
        }, R.drawable.file_icon_picture);
        addItem(new String[] {
                "txt", "log", "xml", "ini", "lrc"
        }, R.drawable.file_icon_txt);
        addItem(new String[] {
                "doc", "ppt", "docx", "pptx", "xsl", "xslx",
        }, R.drawable.file_icon_office);
        addItem(new String[] {
            "pdf"
        }, R.drawable.file_icon_pdf);
        addItem(new String[] {
            "zip"
        }, R.drawable.file_icon_zip);
        addItem(new String[] {
            "mtz"
        }, R.drawable.file_icon_theme);
        addItem(new String[] {
            "rar"
        }, R.drawable.file_icon_rar);
    }

    public FileIconHelper(Context context) {
        mIconLoader = new FileIconLoader(context, this);
    }

    private static void addItem(String[] exts, int resId) {
        if (exts != null) {
            for (String ext : exts) {
                fileExtToIcons.put(ext.toLowerCase(), resId);
            }
        }
    }

    public static int getFileIcon(String ext) {
        Integer i = fileExtToIcons.get(ext.toLowerCase());
        if (i != null) {
            return i.intValue();
        } else {
            return R.drawable.file_icon_default;
        }

    }

    public void setIcon(FileInfo fileInfo, ImageView fileImage, ImageView fileImageFrame) {
        String filePath = fileInfo.filePath;
        long fileId = fileInfo.dbId;
        String extFromFilename = Util.getExtFromFilename(filePath);
        FileCategory fc = FileCategoryHelper.getCategoryFromPath(filePath);
        fileImageFrame.setVisibility(View.GONE);
        boolean set = false;
        int id = getFileIcon(extFromFilename);
        fileImage.setImageResource(id);

        mIconLoader.cancelRequest(fileImage);
        switch (fc) {
            case Apk:
                set = mIconLoader.loadIcon(fileImage, filePath, fileId, fc);
                break;
            case Picture:
            case Video:
                set = mIconLoader.loadIcon(fileImage, filePath, fileId, fc);
                if (set)
                    fileImageFrame.setVisibility(View.VISIBLE);
                else {
                    fileImage.setImageResource(fc == FileCategory.Picture ? R.drawable.file_icon_picture
                            : R.drawable.file_icon_video);
                    imageFrames.put(fileImage, fileImageFrame);
                    set = true;
                }
                break;
            default:
                set = true;
                break;
        }

        if (!set)
            fileImage.setImageResource(R.drawable.file_icon_default);
    }

    @Override
    public void onIconLoadFinished(ImageView view) {
        ImageView frame = imageFrames.get(view);
        if (frame != null) {
            frame.setVisibility(View.VISIBLE);
            imageFrames.remove(view);
        }
    }

}