/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.ui.text.java.hover;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Link;
import org.eclipse.swt.widgets.ScrollBar;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.filebuffers.FileBuffers;
import org.eclipse.core.filebuffers.ITextFileBufferManager;
import org.eclipse.core.filebuffers.LocationKind;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.AbstractInformationControl;
import org.eclipse.jface.text.AbstractReusableInformationControlCreator;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IInformationControl;
import org.eclipse.jface.text.IInformationControlCreator;
import org.eclipse.jface.text.IInformationControlExtension2;
import org.eclipse.jface.text.IInformationControlExtension4;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.IRewriteTarget;
import org.eclipse.jface.text.ITextHoverExtension2;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.ITextViewerExtension;
import org.eclipse.jface.text.Position;
import org.eclipse.jface.text.contentassist.ICompletionProposal;
import org.eclipse.jface.text.contentassist.ICompletionProposalExtension;
import org.eclipse.jface.text.contentassist.ICompletionProposalExtension2;
import org.eclipse.jface.text.source.Annotation;
import org.eclipse.jface.text.source.IAnnotationModel;
import org.eclipse.jface.text.source.IAnnotationModelExtension2;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IStorageEditorInput;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.eclipse.ui.texteditor.AnnotationPreference;
import org.eclipse.ui.texteditor.DefaultMarkerAnnotationAccess;
import org.eclipse.ui.editors.text.EditorsUI;
import org.eclipse.jdt.internal.corext.util.Messages;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.JavaPluginImages;
import org.eclipse.jdt.internal.ui.javaeditor.JavaAnnotationIterator;
import org.eclipse.jdt.internal.ui.text.correction.proposals.FixCorrectionProposal;
/**
* Abstract super class for annotation hovers.
*
* @since 3.0
*/
public abstract class AbstractAnnotationHover extends AbstractJavaEditorTextHover {
/**
* An annotation info contains information about an {@link Annotation}
* It's used as input for the {@link AbstractAnnotationHover.AnnotationInformationControl}
*
* @since 3.4
*/
protected static class AnnotationInfo {
public final Annotation annotation;
public final Position position;
public final ITextViewer viewer;
public AnnotationInfo(Annotation annotation, Position position, ITextViewer textViewer) {
this.annotation= annotation;
this.position= position;
this.viewer= textViewer;
}
/**
* Create completion proposals which can resolve the given annotation at
* the given position. Returns an empty array if no such proposals exist.
*
* @return the proposals or an empty array
*/
public ICompletionProposal[] getCompletionProposals() {
return new ICompletionProposal[0];
}
/**
* Adds actions to the given toolbar.
*
* @param manager the toolbar manager to add actions to
* @param infoControl the information control
*/
public void fillToolBar(ToolBarManager manager, IInformationControl infoControl) {
ConfigureAnnotationsAction configureAnnotationsAction= new ConfigureAnnotationsAction(annotation, infoControl);
manager.add(configureAnnotationsAction);
}
}
/**
* The annotation information control shows informations about a given
* {@link AbstractAnnotationHover.AnnotationInfo}. It can also show a toolbar
* and a list of {@link ICompletionProposal}s.
*
* @since 3.4
*/
private static class AnnotationInformationControl extends AbstractInformationControl implements IInformationControlExtension2 {
private final DefaultMarkerAnnotationAccess fMarkerAnnotationAccess;
private Control fFocusControl;
private AnnotationInfo fInput;
private Composite fParent;
public AnnotationInformationControl(Shell parentShell, String statusFieldText) {
super(parentShell, statusFieldText);
fMarkerAnnotationAccess= new DefaultMarkerAnnotationAccess();
create();
}
public AnnotationInformationControl(Shell parentShell, ToolBarManager toolBarManager) {
super(parentShell, toolBarManager);
fMarkerAnnotationAccess= new DefaultMarkerAnnotationAccess();
create();
}
/*
* @see org.eclipse.jface.text.IInformationControl#setInformation(java.lang.String)
*/
@Override
public void setInformation(String information) {
//replaced by IInformationControlExtension2#setInput
}
/*
* @see org.eclipse.jface.text.IInformationControlExtension2#setInput(java.lang.Object)
*/
public void setInput(Object input) {
Assert.isLegal(input instanceof AnnotationInfo);
fInput= (AnnotationInfo)input;
disposeDeferredCreatedContent();
deferredCreateContent();
}
/*
* @see org.eclipse.jface.text.IInformationControlExtension#hasContents()
*/
public boolean hasContents() {
return fInput != null;
}
private AnnotationInfo getAnnotationInfo() {
return fInput;
}
/*
* @see org.eclipse.jdt.internal.ui.text.java.hover.AbstractAnnotationHover.AbstractInformationControl#setFocus()
*/
@Override
public void setFocus() {
super.setFocus();
if (fFocusControl != null)
fFocusControl.setFocus();
}
/*
* @see org.eclipse.jface.text.AbstractInformationControl#setVisible(boolean)
*/
@Override
public final void setVisible(boolean visible) {
if (!visible)
disposeDeferredCreatedContent();
super.setVisible(visible);
}
protected void disposeDeferredCreatedContent() {
Control[] children= fParent.getChildren();
for (int i= 0; i < children.length; i++) {
children[i].dispose();
}
ToolBarManager toolBarManager= getToolBarManager();
if (toolBarManager != null)
toolBarManager.removeAll();
}
/*
* @see org.eclipse.jface.text.AbstractInformationControl#createContent(org.eclipse.swt.widgets.Composite)
*/
@Override
protected void createContent(Composite parent) {
fParent= parent;
GridLayout layout= new GridLayout(1, false);
layout.verticalSpacing= 0;
layout.marginWidth= 0;
layout.marginHeight= 0;
fParent.setLayout(layout);
}
/*
* @see org.eclipse.jface.text.AbstractInformationControl#computeSizeHint()
*/
@Override
public Point computeSizeHint() {
Point preferedSize= getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
Point constrains= getSizeConstraints();
if (constrains == null)
return preferedSize;
Point constrainedSize= getShell().computeSize(constrains.x, SWT.DEFAULT, true);
int width= Math.min(preferedSize.x, constrainedSize.x);
int height= Math.max(preferedSize.y, constrainedSize.y);
return new Point(width, height);
}
/**
* Fills the toolbar actions, if a toolbar is available. This
* is called after the input has been set.
*/
protected void fillToolbar() {
ToolBarManager toolBarManager= getToolBarManager();
if (toolBarManager == null)
return;
fInput.fillToolBar(toolBarManager, this);
toolBarManager.update(true);
}
/**
* Create content of the hover. This is called after
* the input has been set.
*/
protected void deferredCreateContent() {
fillToolbar();
createAnnotationInformation(fParent, getAnnotationInfo().annotation);
setColorAndFont(fParent, fParent.getForeground(), fParent.getBackground(), JFaceResources.getDialogFont());
ICompletionProposal[] proposals= getAnnotationInfo().getCompletionProposals();
if (proposals.length > 0)
createCompletionProposalsControl(fParent, proposals);
fParent.layout(true);
}
private void setColorAndFont(Control control, Color foreground, Color background, Font font) {
control.setForeground(foreground);
control.setBackground(background);
control.setFont(font);
if (control instanceof Composite) {
Control[] children= ((Composite) control).getChildren();
for (int i= 0; i < children.length; i++) {
setColorAndFont(children[i], foreground, background, font);
}
}
}
private void createAnnotationInformation(Composite parent, final Annotation annotation) {
Composite composite= new Composite(parent, SWT.NONE);
composite.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
GridLayout layout= new GridLayout(2, false);
layout.marginHeight= 2;
layout.marginWidth= 2;
layout.horizontalSpacing= 0;
composite.setLayout(layout);
final Canvas canvas= new Canvas(composite, SWT.NO_FOCUS);
GridData gridData= new GridData(SWT.BEGINNING, SWT.BEGINNING, false, false);
gridData.widthHint= 17;
gridData.heightHint= 16;
canvas.setLayoutData(gridData);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.setFont(null);
fMarkerAnnotationAccess.paint(annotation, e.gc, canvas, new Rectangle(0, 0, 16, 16));
}
});
StyledText text= new StyledText(composite, SWT.MULTI | SWT.WRAP | SWT.READ_ONLY);
GridData data= new GridData(SWT.FILL, SWT.FILL, true, true);
text.setLayoutData(data);
String annotationText= annotation.getText();
if (annotationText != null)
text.setText(annotationText);
}
private void createCompletionProposalsControl(Composite parent, ICompletionProposal[] proposals) {
Composite composite= new Composite(parent, SWT.NONE);
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
GridLayout layout2= new GridLayout(1, false);
layout2.marginHeight= 0;
layout2.marginWidth= 0;
layout2.verticalSpacing= 2;
composite.setLayout(layout2);
Label separator= new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
GridData gridData= new GridData(SWT.FILL, SWT.CENTER, true, false);
separator.setLayoutData(gridData);
Label quickFixLabel= new Label(composite, SWT.NONE);
GridData layoutData= new GridData(SWT.BEGINNING, SWT.CENTER, false, false);
layoutData.horizontalIndent= 4;
quickFixLabel.setLayoutData(layoutData);
String text;
if (proposals.length == 1) {
text= JavaHoverMessages.AbstractAnnotationHover_message_singleQuickFix;
} else {
text= Messages.format(JavaHoverMessages.AbstractAnnotationHover_message_multipleQuickFix, new Object[] { String.valueOf(proposals.length) });
}
quickFixLabel.setText(text);
setColorAndFont(composite, parent.getForeground(), parent.getBackground(), JFaceResources.getDialogFont());
createCompletionProposalsList(composite, proposals);
}
private void createCompletionProposalsList(Composite parent, ICompletionProposal[] proposals) {
final ScrolledComposite scrolledComposite= new ScrolledComposite(parent, SWT.V_SCROLL | SWT.H_SCROLL);
GridData gridData= new GridData(SWT.FILL, SWT.FILL, true, true);
scrolledComposite.setLayoutData(gridData);
scrolledComposite.setExpandVertical(false);
scrolledComposite.setExpandHorizontal(false);
Composite composite= new Composite(scrolledComposite, SWT.NONE);
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
GridLayout layout= new GridLayout(2, false);
layout.marginLeft= 5;
layout.verticalSpacing= 2;
composite.setLayout(layout);
List<Link> list= new ArrayList<Link>();
for (int i= 0; i < proposals.length; i++) {
list.add(createCompletionProposalLink(composite, proposals[i], 1));// Original link for single fix, hence pass 1 for count
if (proposals[i] instanceof FixCorrectionProposal) {
FixCorrectionProposal proposal= (FixCorrectionProposal)proposals[i];
int count= proposal.computeNumberOfFixesForCleanUp(proposal.getCleanUp());
if (count > 1) {
list.add(createCompletionProposalLink(composite, proposals[i], count));
}
}
}
final Link[] links= list.toArray(new Link[list.size()]);
scrolledComposite.setContent(composite);
setColorAndFont(scrolledComposite, parent.getForeground(), parent.getBackground(), JFaceResources.getDialogFont());
Point contentSize= composite.computeSize(SWT.DEFAULT, SWT.DEFAULT);
composite.setSize(contentSize);
Point constraints= getSizeConstraints();
if (constraints != null && contentSize.x < constraints.x) {
ScrollBar horizontalBar= scrolledComposite.getHorizontalBar();
int scrollBarHeight;
if (horizontalBar == null) {
Point scrollSize= scrolledComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT);
scrollBarHeight= scrollSize.y - contentSize.y;
} else {
scrollBarHeight= horizontalBar.getSize().y;
}
gridData.heightHint= contentSize.y - scrollBarHeight;
}
fFocusControl= links[0];
for (int i= 0; i < links.length; i++) {
final int index= i;
final Link link= links[index];
link.addKeyListener(new KeyListener() {
public void keyPressed(KeyEvent e) {
switch (e.keyCode) {
case SWT.ARROW_DOWN:
if (index + 1 < links.length) {
links[index + 1].setFocus();
}
break;
case SWT.ARROW_UP:
if (index > 0) {
links[index - 1].setFocus();
}
break;
default:
break;
}
}
public void keyReleased(KeyEvent e) {
}
});
link.addFocusListener(new FocusListener() {
public void focusGained(FocusEvent e) {
int currentPosition= scrolledComposite.getOrigin().y;
int hight= scrolledComposite.getSize().y;
int linkPosition= link.getLocation().y;
if (linkPosition < currentPosition) {
if (linkPosition < 10)
linkPosition= 0;
scrolledComposite.setOrigin(0, linkPosition);
} else if (linkPosition + 20 > currentPosition + hight) {
scrolledComposite.setOrigin(0, linkPosition - hight + link.getSize().y);
}
}
public void focusLost(FocusEvent e) {
}
});
}
}
private Link createCompletionProposalLink(Composite parent, final ICompletionProposal proposal, int count) {
final boolean isMultiFix= count > 1;
if (isMultiFix) {
new Label(parent, SWT.NONE); // spacer to fill image cell
parent= new Composite(parent, SWT.NONE); // indented composite for multi-fix
GridLayout layout= new GridLayout(2, false);
layout.marginWidth= 0;
layout.marginHeight= 0;
parent.setLayout(layout);
}
Label proposalImage= new Label(parent, SWT.NONE);
proposalImage.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));
Image image= isMultiFix ? JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_MULTI_FIX) : proposal.getImage();
if (image != null) {
proposalImage.setImage(image);
proposalImage.addMouseListener(new MouseListener() {
public void mouseDoubleClick(MouseEvent e) {
}
public void mouseDown(MouseEvent e) {
}
public void mouseUp(MouseEvent e) {
if (e.button == 1) {
apply(proposal, fInput.viewer, fInput.position.offset, isMultiFix);
}
}
});
}
Link proposalLink= new Link(parent, SWT.WRAP);
GridData layoutData= new GridData(SWT.BEGINNING, SWT.CENTER, false, false);
String linkText;
if (isMultiFix) {
linkText= Messages.format(JavaHoverMessages.AbstractAnnotationHover_multifix_variable_description, new Integer(count));
} else {
linkText= proposal.getDisplayString();
}
proposalLink.setText("<a>" + linkText + "</a>"); //$NON-NLS-1$ //$NON-NLS-2$
proposalLink.setLayoutData(layoutData);
proposalLink.addSelectionListener(new SelectionAdapter() {
/*
* @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
*/
@Override
public void widgetSelected(SelectionEvent e) {
apply(proposal, fInput.viewer, fInput.position.offset, isMultiFix);
}
});
return proposalLink;
}
private void apply(ICompletionProposal p, ITextViewer viewer, int offset, boolean isMultiFix) {
//Focus needs to be in the text viewer, otherwise linked mode does not work
dispose();
IRewriteTarget target= null;
try {
IDocument document= viewer.getDocument();
if (viewer instanceof ITextViewerExtension) {
ITextViewerExtension extension= (ITextViewerExtension) viewer;
target= extension.getRewriteTarget();
}
if (target != null)
target.beginCompoundChange();
if (p instanceof ICompletionProposalExtension2) {
ICompletionProposalExtension2 e= (ICompletionProposalExtension2) p;
e.apply(viewer, (char) 0, isMultiFix ? SWT.CONTROL : SWT.NONE, offset);
} else if (p instanceof ICompletionProposalExtension) {
ICompletionProposalExtension e= (ICompletionProposalExtension) p;
e.apply(document, (char) 0, offset);
} else {
p.apply(document);
}
Point selection= p.getSelection(document);
if (selection != null) {
viewer.setSelectedRange(selection.x, selection.y);
viewer.revealRange(selection.x, selection.y);
}
} finally {
if (target != null)
target.endCompoundChange();
}
}
}
/**
* Presenter control creator.
*
* @since 3.4
*/
private static final class PresenterControlCreator extends AbstractReusableInformationControlCreator {
/*
* @see org.eclipse.jdt.internal.ui.text.java.hover.AbstractReusableInformationControlCreator#doCreateInformationControl(org.eclipse.swt.widgets.Shell)
*/
@Override
public IInformationControl doCreateInformationControl(Shell parent) {
return new AnnotationInformationControl(parent, new ToolBarManager(SWT.FLAT));
}
}
/**
* Hover control creator.
*
* @since 3.4
*/
private static final class HoverControlCreator extends AbstractReusableInformationControlCreator {
private final IInformationControlCreator fPresenterControlCreator;
public HoverControlCreator(IInformationControlCreator presenterControlCreator) {
fPresenterControlCreator= presenterControlCreator;
}
/*
* @see org.eclipse.jdt.internal.ui.text.java.hover.AbstractReusableInformationControlCreator#doCreateInformationControl(org.eclipse.swt.widgets.Shell)
*/
@Override
public IInformationControl doCreateInformationControl(Shell parent) {
return new AnnotationInformationControl(parent, EditorsUI.getTooltipAffordanceString()) {
/*
* @see org.eclipse.jface.text.IInformationControlExtension5#getInformationPresenterControlCreator()
*/
@Override
public IInformationControlCreator getInformationPresenterControlCreator() {
return fPresenterControlCreator;
}
};
}
/*
* @see org.eclipse.jdt.internal.ui.text.java.hover.AbstractReusableInformationControlCreator#canReuse(org.eclipse.jface.text.IInformationControl)
*/
@Override
public boolean canReuse(IInformationControl control) {
if (!super.canReuse(control))
return false;
if (control instanceof IInformationControlExtension4)
((IInformationControlExtension4) control).setStatusText(EditorsUI.getTooltipAffordanceString());
return true;
}
}
/**
* Action to configure the annotation preferences.
*
* @since 3.4
*/
private static final class ConfigureAnnotationsAction extends Action {
private final Annotation fAnnotation;
private final IInformationControl fInfoControl;
public ConfigureAnnotationsAction(Annotation annotation, IInformationControl infoControl) {
super();
fAnnotation= annotation;
fInfoControl= infoControl;
setImageDescriptor(JavaPluginImages.DESC_ELCL_CONFIGURE_ANNOTATIONS);
setDisabledImageDescriptor(JavaPluginImages.DESC_DLCL_CONFIGURE_ANNOTATIONS);
setToolTipText(JavaHoverMessages.AbstractAnnotationHover_action_configureAnnotationPreferences);
}
/*
* @see org.eclipse.jface.action.Action#run()
*/
@Override
public void run() {
Shell shell= PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
Object data= null;
AnnotationPreference preference= getAnnotationPreference(fAnnotation);
if (preference != null)
data= preference.getPreferenceLabel();
fInfoControl.dispose(); //FIXME: should have protocol to hide, rather than dispose
PreferencesUtil.createPreferenceDialogOn(shell, "org.eclipse.ui.editors.preferencePages.Annotations", null, data).open(); //$NON-NLS-1$
}
}
private final IPreferenceStore fStore= JavaPlugin.getDefault().getCombinedPreferenceStore();
private final DefaultMarkerAnnotationAccess fAnnotationAccess= new DefaultMarkerAnnotationAccess();
private final boolean fAllAnnotations;
/**
* The hover control creator.
*
* @since 3.4
*/
private IInformationControlCreator fHoverControlCreator;
/**
* The presentation control creator.
*
* @since 3.4
*/
private IInformationControlCreator fPresenterControlCreator;
public AbstractAnnotationHover(boolean allAnnotations) {
fAllAnnotations= allAnnotations;
}
/**
* @deprecated As of 3.4, replaced by {@link ITextHoverExtension2#getHoverInfo2(ITextViewer, IRegion)}
* @see org.eclipse.jface.text.ITextHover#getHoverInfo(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion)
*/
public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) {
return null;
}
/*
* @see org.eclipse.jdt.internal.ui.text.java.hover.AbstractJavaEditorTextHover#getHoverInfo2(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion)
* @since 3.4
*/
@Override
public Object getHoverInfo2(ITextViewer textViewer, IRegion hoverRegion) {
IPath path;
IAnnotationModel model;
if (textViewer instanceof ISourceViewer) {
path= null;
model= ((ISourceViewer)textViewer).getAnnotationModel();
} else {
// Get annotation model from file buffer manager
path= getEditorInputPath();
model= getAnnotationModel(path);
}
if (model == null)
return null;
try {
Iterator<Annotation> parent;
if (model instanceof IAnnotationModelExtension2)
parent= ((IAnnotationModelExtension2)model).getAnnotationIterator(hoverRegion.getOffset(), hoverRegion.getLength(), true, true);
else
parent= model.getAnnotationIterator();
Iterator<Annotation> e= new JavaAnnotationIterator(parent, fAllAnnotations);
int layer= -1;
Annotation annotation= null;
Position position= null;
while (e.hasNext()) {
Annotation a= e.next();
AnnotationPreference preference= getAnnotationPreference(a);
if (preference == null || !(preference.getTextPreferenceKey() != null && fStore.getBoolean(preference.getTextPreferenceKey()) || (preference.getHighlightPreferenceKey() != null && fStore.getBoolean(preference.getHighlightPreferenceKey()))))
continue;
Position p= model.getPosition(a);
int l= fAnnotationAccess.getLayer(a);
if (l > layer && p != null && p.overlapsWith(hoverRegion.getOffset(), hoverRegion.getLength())) {
String msg= a.getText();
if (msg != null && msg.trim().length() > 0) {
layer= l;
annotation= a;
position= p;
}
}
}
if (layer > -1)
return createAnnotationInfo(annotation, position, textViewer);
} finally {
try {
if (path != null) {
ITextFileBufferManager manager= FileBuffers.getTextFileBufferManager();
manager.disconnect(path, LocationKind.NORMALIZE, null);
}
} catch (CoreException ex) {
JavaPlugin.log(ex.getStatus());
}
}
return null;
}
protected AnnotationInfo createAnnotationInfo(Annotation annotation, Position position, ITextViewer textViewer) {
return new AnnotationInfo(annotation, position, textViewer);
}
/*
* @see ITextHoverExtension#getHoverControlCreator()
* @since 3.4
*/
@Override
public IInformationControlCreator getHoverControlCreator() {
if (fHoverControlCreator == null)
fHoverControlCreator= new HoverControlCreator(getInformationPresenterControlCreator());
return fHoverControlCreator;
}
/*
* @see org.eclipse.jface.text.information.IInformationProviderExtension2#getInformationPresenterControlCreator()
* @since 3.4
*/
@Override
public IInformationControlCreator getInformationPresenterControlCreator() {
if (fPresenterControlCreator == null)
fPresenterControlCreator= new PresenterControlCreator();
return fPresenterControlCreator;
}
private IPath getEditorInputPath() {
if (getEditor() == null)
return null;
IEditorInput input= getEditor().getEditorInput();
if (input instanceof IStorageEditorInput) {
try {
return ((IStorageEditorInput)input).getStorage().getFullPath();
} catch (CoreException ex) {
JavaPlugin.log(ex.getStatus());
}
}
return null;
}
private IAnnotationModel getAnnotationModel(IPath path) {
if (path == null)
return null;
ITextFileBufferManager manager= FileBuffers.getTextFileBufferManager();
try {
manager.connect(path, LocationKind.NORMALIZE, null);
} catch (CoreException ex) {
JavaPlugin.log(ex.getStatus());
return null;
}
IAnnotationModel model= null;
try {
model= manager.getTextFileBuffer(path, LocationKind.NORMALIZE).getAnnotationModel();
return model;
} finally {
if (model == null) {
try {
manager.disconnect(path, LocationKind.NORMALIZE, null);
} catch (CoreException ex) {
JavaPlugin.log(ex.getStatus());
}
}
}
}
/**
* Returns the annotation preference for the given annotation.
*
* @param annotation the annotation
* @return the annotation preference or <code>null</code> if none
*/
private static AnnotationPreference getAnnotationPreference(Annotation annotation) {
if (annotation.isMarkedDeleted())
return null;
return EditorsUI.getAnnotationPreferenceLookup().getAnnotationPreference(annotation);
}
}