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first step for making Gradle Outline: basic parser out plain tree in
Outline; Outline is done a-la Winterstein Markdown Editor
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202 changes: 202 additions & 0 deletions
202
...e.enide.editors.gradle/src/org/nodeclipse/enide/editors/gradle/editors/GradleOutline.java
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| @@ -0,0 +1,202 @@ | ||
| package org.nodeclipse.enide.editors.gradle.editors; | ||
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| import org.eclipse.jface.text.DocumentEvent; | ||
| import org.eclipse.jface.text.IDocument; | ||
| import org.eclipse.jface.text.IDocumentListener; | ||
| import org.eclipse.jface.viewers.ITreeContentProvider; | ||
| import org.eclipse.jface.viewers.TreeViewer; | ||
| import org.eclipse.jface.viewers.Viewer; | ||
| import org.eclipse.swt.widgets.Composite; | ||
| import org.eclipse.swt.widgets.Control; | ||
| import org.eclipse.ui.texteditor.IDocumentProvider; | ||
| import org.eclipse.ui.views.contentoutline.ContentOutlinePage; | ||
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| public class GradleOutline extends ContentOutlinePage { | ||
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| private final IDocumentProvider fDocumentProvider; | ||
| private final GradleEditor fTextEditor; | ||
| private Object fInput = null; | ||
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| public GradleOutline(IDocumentProvider documentProvider, GradleEditor gradleEditor) { | ||
| this.fDocumentProvider=documentProvider; | ||
| this.fTextEditor=gradleEditor; | ||
| } | ||
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| /** | ||
| * Sets the input of the outline page | ||
| * | ||
| * @param input | ||
| * the input of this outline page | ||
| */ | ||
| public void setInput(Object input) { | ||
| fInput = input; | ||
| update(); | ||
| } | ||
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| /** | ||
| * Updates the outline page. | ||
| */ | ||
| public void update() { | ||
| TreeViewer viewer = getTreeViewer(); | ||
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| if (viewer != null) { | ||
| Control control = viewer.getControl(); | ||
| if (control != null && !control.isDisposed()) { | ||
| control.setRedraw(false); | ||
| viewer.setInput(fInput); | ||
| viewer.expandAll(); | ||
| control.setRedraw(true); | ||
| } | ||
| } | ||
| } | ||
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| /* | ||
| * (non-Javadoc) Method declared on ContentOutlinePage | ||
| */ | ||
| @Override | ||
| public void createControl(Composite parent) { | ||
| super.createControl(parent); | ||
| TreeViewer viewer = getTreeViewer(); | ||
| viewer.setContentProvider(new ContentProvider()); | ||
| //... | ||
| viewer.addSelectionChangedListener(this); | ||
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| if (fInput != null) | ||
| viewer.setInput(fInput); | ||
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| } | ||
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| public final class ContentProvider implements ITreeContentProvider, IDocumentListener { | ||
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| private GradlePage fContent; | ||
| // protected List fContent= new ArrayList(10); | ||
| private GradleEditor fTextEditor; | ||
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| private void parse() { | ||
| if (fTextEditor==null){ | ||
| System.out.println("fTextEditor==null"); | ||
| return; | ||
| } | ||
| fContent = fTextEditor.getGradlePage(); | ||
| } | ||
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| /* | ||
| * @see IContentProvider#inputChanged(Viewer, Object, Object) | ||
| */ | ||
| @Override | ||
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { | ||
| // Detach from old | ||
| if (oldInput != null) { | ||
| IDocument document = fDocumentProvider.getDocument(oldInput); | ||
| if (document != null) { | ||
| document.removeDocumentListener(this); | ||
| } | ||
| } | ||
| fContent = null; | ||
| // Attach to new | ||
| if (newInput == null) | ||
| return; | ||
| IDocument document = fDocumentProvider.getDocument(newInput); | ||
| if (document == null) | ||
| return; | ||
| fTextEditor = GradleEditor.getEditor(document); | ||
| document.addDocumentListener(this); | ||
| parse(); | ||
| } | ||
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| @Override | ||
| public void documentAboutToBeChanged(DocumentEvent event) { | ||
| // nothing | ||
| } | ||
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| @Override | ||
| public void documentChanged(DocumentEvent event) { | ||
| parse(); | ||
| update(); | ||
| } | ||
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| /* | ||
| * @see IContentProvider#dispose | ||
| */ | ||
| @Override | ||
| public void dispose() { | ||
| fContent = null; | ||
| } | ||
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| // /* | ||
| // * @see IContentProvider#isDeleted(Object) | ||
| // */ | ||
| // @Override | ||
| // public boolean isDeleted(Object element) { | ||
| // return false; | ||
| // } | ||
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| /* | ||
| * @see IStructuredContentProvider#getElements(Object) | ||
| */ | ||
| @Override | ||
| public Object[] getElements(Object inputElement) { | ||
| // //TODO | ||
| // if (fContent==null){ | ||
| // System.out.println("fContent==null"); | ||
| // return null; | ||
| // } | ||
| // if (fContent.nodes==null){ | ||
| // System.out.println("fContent.nodes==null"); | ||
| // return null; | ||
| // } | ||
| return fContent.nodes.toArray(); | ||
| } | ||
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| /* | ||
| * @see ITreeContentProvider#hasChildren(Object) | ||
| */ | ||
| @Override | ||
| public boolean hasChildren(Object element) { | ||
| if (element == fInput) { | ||
| return true; | ||
| } | ||
| if (element instanceof GradlePage.Node) { | ||
| GradlePage.Node node = (GradlePage.Node) element; | ||
| //return header.getSubHeaders().size() > 0; | ||
| return false; | ||
| } | ||
| ; | ||
| return false; | ||
| } | ||
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| /* | ||
| * @see ITreeContentProvider#getParent(Object) | ||
| */ | ||
| @Override | ||
| public Object getParent(Object element) { | ||
| if (!(element instanceof GradlePage.Node)) | ||
| return null; | ||
| //TODO | ||
| return null; | ||
| } | ||
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| /* | ||
| * @see ITreeContentProvider#getChildren(Object) | ||
| */ | ||
| @Override | ||
| public Object[] getChildren(Object element) { | ||
| if (element == fInput) { | ||
| return getElements(null); | ||
| } | ||
| if (!(element instanceof GradlePage.Node)) | ||
| return null; | ||
| //return ((MarkdownPage.Header) element).getSubHeaders().toArray(); | ||
| //TODO | ||
| return null; | ||
| } | ||
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| } | ||
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| } |
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