/*
* Autopsy Forensic Browser
*
* Copyright 2011-2015 Basis Technology Corp.
* Contact: carrier <at> sleuthkit <dot> org
*s
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sleuthkit.autopsy.corecomponents;
import java.awt.CardLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.util.List;
import java.util.logging.Level;
import org.openide.nodes.Node;
import org.openide.util.NbBundle;
import org.openide.util.lookup.ServiceProvider;
import org.openide.util.lookup.ServiceProviders;
import org.sleuthkit.autopsy.corecomponentinterfaces.DataContentViewer;
import org.sleuthkit.autopsy.coreutils.Logger;
import org.sleuthkit.datamodel.AbstractFile;
import org.sleuthkit.datamodel.TskData.TSK_FS_NAME_FLAG_ENUM;
/**
* Media content viewer for videos, sounds and images.
*/
@ServiceProviders(value = {
@ServiceProvider(service = DataContentViewer.class, position = 5)
})
public class DataContentViewerMedia extends javax.swing.JPanel implements DataContentViewer {
private static final Logger logger = Logger.getLogger(DataContentViewerMedia.class.getName());
private AbstractFile lastFile;
//UI
private final MediaViewVideoPanel videoPanel;
private final boolean videoPanelInited;
private final MediaViewImagePanel imagePanel;
private final boolean imagePanelInited;
private static final String IMAGE_VIEWER_LAYER = "IMAGE"; //NON-NLS
private static final String VIDEO_VIEWER_LAYER = "VIDEO"; //NON-NLS
/**
* Creates new form DataContentViewerVideo
*/
public DataContentViewerMedia() {
initComponents();
// get the right panel for our platform
videoPanel = MediaViewVideoPanel.createVideoPanel();
videoPanelInited = videoPanel.isInited();
imagePanel = new MediaViewImagePanel();
imagePanelInited = imagePanel.isInited();
customizeComponents();
logger.log(Level.INFO, "Created MediaView instance: {0}", this); //NON-NLS
}
private void customizeComponents() {
add(imagePanel, IMAGE_VIEWER_LAYER);
add(videoPanel, VIDEO_VIEWER_LAYER);
showVideoPanel(false);
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {
setLayout(new java.awt.CardLayout());
getAccessibleContext().setAccessibleDescription(org.openide.util.NbBundle.getMessage(DataContentViewerMedia.class, "DataContentViewerMedia.AccessibleContext.accessibleDescription")); // NOI18N
}// </editor-fold>//GEN-END:initComponents
// Variables declaration - do not modify//GEN-BEGIN:variables
// End of variables declaration//GEN-END:variables
@Override
public void setNode(Node selectedNode) {
try {
if (selectedNode == null) {
resetComponent();
return;
}
AbstractFile file = selectedNode.getLookup().lookup(AbstractFile.class);
if (file == null) {
resetComponent();
return;
}
if (file.equals(lastFile)) {
return; //prevent from loading twice if setNode() called mult. times
}
lastFile = file;
final Dimension dims = DataContentViewerMedia.this.getSize();
//logger.info("setting node on media viewer"); //NON-NLS
if (videoPanelInited && videoPanel.isSupported(file)) {
videoPanel.setupVideo(file, dims);
this.showVideoPanel(true);
} else if (imagePanelInited && imagePanel.isSupported(file)) {
imagePanel.showImageFx(file, dims);
this.showVideoPanel(false);
}
} catch (Exception e) {
logger.log(Level.SEVERE, "Exception while setting node", e); //NON-NLS
}
}
/**
* switch to visible video or image panel
*
* @param showVideo true if video panel, false if image panel
*/
private void showVideoPanel(boolean showVideo) {
CardLayout layout = (CardLayout) this.getLayout();
if (showVideo) {
layout.show(this, VIDEO_VIEWER_LAYER);
} else {
layout.show(this, IMAGE_VIEWER_LAYER);
}
}
@Override
public String getTitle() {
return NbBundle.getMessage(this.getClass(), "DataContentViewerMedia.title");
}
@Override
public String getToolTip() {
return NbBundle.getMessage(this.getClass(), "DataContentViewerMedia.toolTip");
}
@Override
public DataContentViewer createInstance() {
return new DataContentViewerMedia();
}
@Override
public Component getComponent() {
return this;
}
@Override
public void resetComponent() {
videoPanel.reset();
imagePanel.reset();
lastFile = null;
}
/**
* Is the given file a video we can display?
*
* @param file
*
* @return True if a video file that can be displayed
*/
private boolean isVideoSupported(AbstractFile file) {
if (null == file || file.getSize() == 0) {
return false;
}
return videoPanel.isSupported(file);
}
/**
* Is the given file an image that we can display?
*
* @param file
*
* @return True if an image file that can be displayed
*/
private boolean isImageSupported(AbstractFile file) {
if (null == file || file.getSize() == 0) {
return false;
}
return imagePanel.isSupported(file);
}
@Override
public boolean isSupported(Node node) {
if (node == null) {
return false;
}
AbstractFile file = node.getLookup().lookup(AbstractFile.class);
if (file == null) {
return false;
}
if (file.getSize() == 0) {
return false;
}
if (imagePanelInited && isImageSupported(file)) {
return true;
}
return videoPanelInited && isVideoSupported(file);
}
@Override
public int isPreferred(Node node) {
//special case, check if deleted video, then do not make it preferred
AbstractFile file = node.getLookup().lookup(AbstractFile.class);
if (file == null) {
return 0;
}
boolean deleted = file.isDirNameFlagSet(TSK_FS_NAME_FLAG_ENUM.UNALLOC);
if (videoPanel.isSupported(file) && deleted) {
return 0;
} else {
return 7;
}
}
interface MediaViewPanel {
/**
* @return supported mime types
*/
List<String> getMimeTypes();
/**
* returns supported extensions (each starting with .)
*
* @return
*/
List<String> getExtensionsList();
boolean isSupported(AbstractFile file);
}
}