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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.search.internal.ui.text;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.IResource;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IEditorDescriptor;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IEditorRegistry;
import org.eclipse.ui.IReusableEditor;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.search.ui.ISearchResultView;
import org.eclipse.search.ui.ISearchResultViewEntry;
import org.eclipse.search.ui.SearchUI;
import org.eclipse.search.internal.ui.SearchMessages;
import org.eclipse.search.internal.ui.SearchPlugin;
import org.eclipse.search.internal.ui.util.ExceptionHandler;
class GotoMarkerAction extends Action {
private IEditorPart fEditor;
public void run() {
ISearchResultView view= SearchUI.getSearchResultView();
ISelection selection= view.getSelection();
Object element= null;
if (selection instanceof IStructuredSelection)
element= ((IStructuredSelection)selection).getFirstElement();
if (element instanceof ISearchResultViewEntry) {
ISearchResultViewEntry entry= (ISearchResultViewEntry)element;
show(entry.getSelectedMarker());
}
}
private void show(IMarker marker) {
if (SearchUI.reuseEditor())
showWithReuse(marker);
else
showWithoutReuse(marker);
}
private void showWithReuse(IMarker marker) {
IWorkbenchPage page= SearchPlugin.getActivePage();
IResource resource= marker.getResource();
if (page == null || !(resource instanceof IFile))
return;
IEditorInput input= new FileEditorInput((IFile)resource);
String editorId= null;
IEditorDescriptor desc= IDE.getDefaultEditor((IFile)resource);
if (desc == null)
editorId= SearchPlugin.getDefault().getWorkbench().getEditorRegistry().findEditor(IEditorRegistry.SYSTEM_EXTERNAL_EDITOR_ID).getId();
else
editorId= desc.getId();
IEditorPart editor= page.findEditor(input);
if (editor != null)
page.bringToTop(editor);
else {
boolean isOpen= false;
if (fEditor != null) {
IEditorReference[] parts= page.getEditorReferences();
int i= 0;
while (!isOpen && i < parts.length)
isOpen= fEditor == parts[i++].getEditor(false);
}
boolean canBeReused= isOpen && !fEditor.isDirty() && !isPinned(fEditor);
boolean showsSameInputType= fEditor != null && fEditor.getSite().getId().equals(editorId);
if (canBeReused && !showsSameInputType) {
page.closeEditor(fEditor, false);
fEditor= null;
}
if (canBeReused && showsSameInputType) {
((IReusableEditor)fEditor).setInput(input);
page.bringToTop(fEditor);
editor= fEditor;
} else
try {
editor= page.openEditor(input, editorId, false);
if (editor instanceof IReusableEditor)
fEditor= editor;
else
fEditor= null;
} catch (PartInitException ex) {
ExceptionHandler.handle(ex, SearchMessages.getString("Search.Error.openEditor.title"), SearchMessages.getString("Search.Error.openEditor.message")); //$NON-NLS-2$ //$NON-NLS-1$
return;
}
}
if (editor != null) {
IDE.gotoMarker(editor, marker);
}
}
private boolean isPinned(IEditorPart editor) {
if (editor == null)
return false;
IEditorReference[] editorRefs= editor.getEditorSite().getPage().getEditorReferences();
int i= 0;
while (i < editorRefs.length) {
if (editor.equals(editorRefs[i].getEditor(false)))
return editorRefs[i].isPinned();
i++;
}
return false;
}
private void showWithoutReuse(IMarker marker) {
IWorkbenchPage page= SearchPlugin.getActivePage();
if (page == null)
return;
try {
IDE.openEditor(page, marker, false);
} catch (PartInitException ex) {
ExceptionHandler.handle(ex, SearchMessages.getString("Search.Error.openEditor.title"), SearchMessages.getString("Search.Error.openEditor.message")); //$NON-NLS-2$ //$NON-NLS-1$
return;
}
}
}
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