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Proof of concept to access user input send from eclipse console to pr… 
…ocess.

This does not work with current version of eclipse's ProcessConsole.
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@PPazderski
PPazderski committed Jul 2, 2019
1 parent 8fa736b commit b1fb810
Showing 1 changed file with 42 additions and 71 deletions.
113 changes: 42 additions & 71 deletions plugins/org.python.pydev.debug/src/org/python/pydev/debug/model/AbstractDebugTarget.java
View file
Expand Up @@ -7,6 +7,7 @@
package org.python.pydev.debug.model;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
Expand All @@ -31,17 +32,15 @@
import org.eclipse.debug.core.model.IDebugTarget;
import org.eclipse.debug.core.model.IMemoryBlock;
import org.eclipse.debug.core.model.IStackFrame;
import org.eclipse.debug.core.model.IStreamMonitor;
import org.eclipse.debug.core.model.IStreamsProxy;
import org.eclipse.debug.core.model.IThread;
import org.eclipse.debug.internal.ui.views.console.ProcessConsole;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocumentListener;
import org.eclipse.jface.text.ITypedRegion;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.ui.console.IConsole;
import org.eclipse.ui.internal.console.IOConsolePartition;
import org.eclipse.ui.console.IOConsole;
import org.eclipse.ui.views.properties.IPropertySource;
import org.eclipse.ui.views.tasklist.ITaskListResourceAdapter;
import org.python.pydev.ast.location.FindWorkspaceFiles;
Expand Down Expand Up @@ -80,7 +79,6 @@
*
* @author Fabio
*/
@SuppressWarnings("restriction")
public abstract class AbstractDebugTarget extends AbstractDebugTargetWithTransmission implements IDebugTarget,
ILaunchListener, IExceptionsBreakpointListener, IPropertyTraceListener {

Expand Down Expand Up @@ -898,84 +896,57 @@ private void addBreakpointsFor(IContainer container) {
* This function adds the input listener extension point, so that plugins that only care about
* the input in the console can know about it.
*/
@SuppressWarnings({ "unchecked" })
public void addConsoleInputListener() {
IConsole console = DebugUITools.getConsole(this.getProcess());
if (console instanceof ProcessConsole) {
final ProcessConsole c = (ProcessConsole) console;
final List<IConsoleInputListener> participants = ExtensionHelper
.getParticipants(ExtensionHelper.PYDEV_DEBUG_CONSOLE_INPUT_LISTENER);
if (console instanceof IOConsole && console instanceof org.eclipse.debug.ui.console.IConsole) {
final org.eclipse.debug.ui.console.IConsole ic = (org.eclipse.debug.ui.console.IConsole) console;
final IOConsole c = (IOConsole) console;
final AbstractDebugTarget target = this;

target.addProcessConsole(c);

//let's listen the doc for the changes
c.getDocument().addDocumentListener(new IDocumentListener() {
IStreamsProxy proxy = new SplittingStreamProxy(target, this.getProcess().getStreamsProxy());
// JavaDoc is not clear if connect is allowed to be called more than once
// reality is: on ProcessConsole (this is one) you cannot call connect
ic.connect(proxy);
}
}

@Override
public void documentAboutToBeChanged(DocumentEvent event) {
if (target.isWaitingForInput()) {
return;
}
private static class SplittingStreamProxy implements IStreamsProxy {

//only report when we have a new line
if (event.fText.indexOf('\r') != -1 || event.fText.indexOf('\n') != -1) {
try {
ITypedRegion partition = event.fDocument.getPartition(event.fOffset);
if (partition instanceof IOConsolePartition) {
IOConsolePartition p = (IOConsolePartition) partition;

//we only communicate about inputs (because we only care about what the user writes)
if (p.getType().equals(IOConsolePartition.INPUT_PARTITION_TYPE)) {
if (event.fText.length() <= 2) {
//the user typed something
final String inputFound = p.getString();
for (IConsoleInputListener listener : participants) {
listener.newLineReceived(inputFound, target);
}
}

}
}
} catch (Exception e) {
Log.log(e);
}
}
@SuppressWarnings({ "unchecked" })
final List<IConsoleInputListener> participants = ExtensionHelper
.getParticipants(ExtensionHelper.PYDEV_DEBUG_CONSOLE_INPUT_LISTENER);
AbstractDebugTarget target;
IStreamsProxy delegateProxy;

}
public SplittingStreamProxy(AbstractDebugTarget target, IStreamsProxy delegateProxy) {
super();
this.target = target;
this.delegateProxy = delegateProxy;
}

@Override
public void documentChanged(DocumentEvent event) {
if (target.isWaitingForInput()) {
return;
}
@Override
public IStreamMonitor getErrorStreamMonitor() {
return delegateProxy.getErrorStreamMonitor();
}

//only report when we have a new line
if (event.fText.indexOf('\r') != -1 || event.fText.indexOf('\n') != -1) {
try {
ITypedRegion partition = event.fDocument.getPartition(event.fOffset);
if (partition instanceof IOConsolePartition) {
IOConsolePartition p = (IOConsolePartition) partition;

//we only communicate about inputs (because we only care about what the user writes)
if (p.getType().equals(IOConsolePartition.INPUT_PARTITION_TYPE)) {
if (event.fText.length() > 2) {
//the user pasted something
for (IConsoleInputListener listener : participants) {
listener.pasteReceived(event.fText, target);
}
}

}
}
} catch (Exception e) {
Log.log(e);
}
}
}
@Override
public IStreamMonitor getOutputStreamMonitor() {
return delegateProxy.getOutputStreamMonitor();
}

});
@Override
public void write(String input) throws IOException {
if (target.isWaitingForInput()) {
delegateProxy.write(input);
} else {
for (IConsoleInputListener participant : participants) {
participant.newLineReceived(input, target);
}
}
}

}

@Override
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