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Fixed UI exceptions caused by modifications to the UI outside the event thread.

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This commit is contained in:
Mads 2014-03-13 20:18:35 +01:00
parent acde4ed63f
commit 812bf26b3c
3 changed files with 127 additions and 112 deletions
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44
src/main/java/com/rarchives/ripme/ripper/AbstractRipper.java
View File

@ -1,5 +1,7 @@
package com.rarchives.ripme.ripper;
import com.rarchives.ripme.ui.MainWindow;
import com.rarchives.ripme.ui.RipStatusHandler;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Constructor;
@ -17,6 +19,7 @@ import org.apache.log4j.Logger;
import com.rarchives.ripme.ui.RipStatusMessage;
import com.rarchives.ripme.ui.RipStatusMessage.STATUS;
import com.rarchives.ripme.utils.Utils;
import java.util.Collections;
public abstract class AbstractRipper
extends Observable
@ -30,11 +33,11 @@ public abstract class AbstractRipper
protected URL url;
protected File workingDir;
protected DownloadThreadPool threadPool;
protected Observer observer = null;
protected RipStatusHandler observer = null;
protected Map<URL, File> itemsPending = new HashMap<URL, File>();
protected Map<URL, File> itemsCompleted = new HashMap<URL, File>();
protected Map<URL, String> itemsErrored = new HashMap<URL, String>();
protected Map<URL, File> itemsPending = Collections.synchronizedMap(new HashMap<URL, File>());
protected Map<URL, File> itemsCompleted = Collections.synchronizedMap(new HashMap<URL, File>());
protected Map<URL, String> itemsErrored = Collections.synchronizedMap(new HashMap<URL, String>());
protected boolean completed = true;
public abstract void rip() throws IOException;
@ -59,7 +62,7 @@ public abstract class AbstractRipper
this.threadPool = new DownloadThreadPool();
}
public void setObserver(Observer obs) {
public void setObserver(RipStatusHandler obs) {
this.observer = obs;
}
@ -162,7 +165,6 @@ public abstract class AbstractRipper
public void retrievingSource(URL url) {
RipStatusMessage msg = new RipStatusMessage(STATUS.LOADING_RESOURCE, url);
observer.update(this, msg);
observer.notifyAll();
}
/**
@ -179,13 +181,11 @@ public abstract class AbstractRipper
try {
String path = Utils.removeCWD(saveAs);
RipStatusMessage msg = new RipStatusMessage(STATUS.DOWNLOAD_COMPLETE, path);
synchronized(observer) {
itemsPending.remove(url);
itemsCompleted.put(url, saveAs);
observer.update(this, msg);
observer.notifyAll();
checkIfComplete();
}
} catch (Exception e) {
logger.error("Exception while updating observer: ", e);
}
@ -200,14 +200,12 @@ public abstract class AbstractRipper
if (observer == null) {
return;
}
synchronized(observer) {
itemsPending.remove(url);
itemsErrored.put(url, reason);
observer.update(this, new RipStatusMessage(STATUS.DOWNLOAD_ERRORED, url + " : " + reason));
observer.notifyAll();
checkIfComplete();
}
}
/**
* Notify observers that a download could not be completed,
@ -219,12 +217,12 @@ public abstract class AbstractRipper
if (observer == null) {
return;
}
synchronized(observer) {
itemsPending.remove(url);
itemsErrored.put(url, message);
observer.update(this, new RipStatusMessage(STATUS.DOWNLOAD_WARN, url + " : " + message));
observer.notifyAll();
}
checkIfComplete();
}
@ -235,16 +233,13 @@ public abstract class AbstractRipper
if (observer == null) {
return;
}
synchronized (observer) {
if (!completed && itemsPending.size() == 0) {
if (!completed && itemsPending.isEmpty()) {
completed = true;
logger.info(" Rip completed!");
observer.update(this,
new RipStatusMessage(
STATUS.RIP_COMPLETE,
workingDir));
observer.notifyAll();
}
RipStatusMessage msg = new RipStatusMessage(STATUS.RIP_COMPLETE, workingDir);
observer.update(this, msg);
}
}
@ -325,10 +320,7 @@ public abstract class AbstractRipper
if (observer == null) {
return;
}
synchronized (observer) {
observer.update(this, new RipStatusMessage(status, message));
observer.notifyAll();
}
}
/**

49
src/main/java/com/rarchives/ripme/ui/MainWindow.java
View File

@ -46,7 +46,7 @@ import com.rarchives.ripme.utils.Utils;
/**
* Everything UI-related starts and ends here.
*/
public class MainWindow implements Runnable {
public class MainWindow implements Runnable, RipStatusHandler {
private static final Logger logger = Logger.getLogger(MainWindow.class);
@ -101,7 +101,7 @@ public class MainWindow implements Runnable {
mainFrame.setVisible(true);
}
public static void status(String text) {
public synchronized static void status(String text) {
statusLabel.setText(text);
mainFrame.pack();
}
@ -276,24 +276,14 @@ public class MainWindow implements Runnable {
}
private void appendLog(final String text, final Color color) {
try {
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
SimpleAttributeSet sas = new SimpleAttributeSet();
StyleConstants.setForeground(sas, color);
StyledDocument sd = logText.getStyledDocument();
try {
sd.insertString(sd.getLength(), text + "\n", sas);
} catch (BadLocationException e) { }
logText.setCaretPosition(logText.getText().length());
}
});
} catch (InterruptedException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
logText.setCaretPosition(sd.getLength());
}
private void loadHistory() {
@ -359,7 +349,7 @@ public class MainWindow implements Runnable {
try {
AbstractRipper ripper = AbstractRipper.getRipper(url);
ripTextfield.setText(ripper.getURL().toExternalForm());
ripper.setObserver(new RipStatusHandler());
ripper.setObserver((RipStatusHandler) this);
Thread t = new Thread(ripper);
t.start();
return t;
@ -376,13 +366,26 @@ public class MainWindow implements Runnable {
}
}
class RipStatusHandler implements Observer {
public void update(Observable observable, Object object) {
RipStatusMessage msg = (RipStatusMessage) object;
private class StatusEvent implements Runnable {
private final AbstractRipper ripper;
private final RipStatusMessage msg;
int completedPercent = ((AbstractRipper) observable).getCompletionPercentage();
public StatusEvent(AbstractRipper ripper, RipStatusMessage msg) {
this.ripper = ripper;
this.msg = msg;
}
public void run() {
handleEvent(this);
}
}
private void handleEvent(StatusEvent evt) {
RipStatusMessage msg = evt.msg;
int completedPercent = evt.ripper.getCompletionPercentage();
statusProgress.setValue(completedPercent);
status( ((AbstractRipper)observable).getStatusText() );
status( evt.ripper.getStatusText() );
switch(msg.getStatus()) {
case LOADING_RESOURCE:
@ -428,11 +431,17 @@ public class MainWindow implements Runnable {
mainFrame.pack();
}
}
public void update(AbstractRipper ripper, RipStatusMessage message) {
StatusEvent event = new StatusEvent(ripper, message);
SwingUtilities.invokeLater(event);
}
/** Simple TextPane that allows horizontal scrolling. */
class JTextPaneNoWrap extends JTextPane {
private static final long serialVersionUID = 1L;
@Override
public boolean getScrollableTracksViewportWidth() {
return false;
}

14
src/main/java/com/rarchives/ripme/ui/RipStatusHandler.java Normal file
View File

@ -0,0 +1,14 @@
package com.rarchives.ripme.ui;
import com.rarchives.ripme.ripper.AbstractRipper;
/**
*
* @author Mads
*/
public interface RipStatusHandler {
public void update(AbstractRipper ripper, RipStatusMessage message);
}