--- /dev/null
+/**
+ * Created on 13.01.2003 by Jan Schulz
+ */
+package net.sourceforge.phpdt.tidy.actions;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.util.Iterator;
+
+import net.sourceforge.phpdt.tidy.JtidyPlugin;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.jface.action.IAction;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.texteditor.ITextEditor;
+
+/**
+ * @author jan
+ * @since 13.01.2003
+ */
+public abstract class AbstractJTidyAction {
+ private ITextEditor fTextEditor = null;
+ private IStructuredSelection fSelection = null;
+
+ /**
+ * Parses the given stream with a Tidy Instance, which belongs to this
+ * IFile. Problems will be marked on this file.
+ * @param in
+ * @param file
+ * @return InputStream
+ */
+ protected byte[] parseStreamOfFile(InputStream in, IFile file) {
+ deleteTidyMarker(file);
+ ByteArrayOutputStream out = new ByteArrayOutputStream();
+ JtidyPlugin.getTidyInstance(file).parse(file, in, out);
+ return out.toByteArray();
+
+ }
+
+ /**
+ * Deletes all JTidy Marker of this File
+ *
+ * @param file
+ */
+ protected void deleteTidyMarker(IFile file) {
+ try {
+ IMarker[] markers = file.findMarkers(null, false, IResource.DEPTH_ZERO);
+ for (int i = 0; i < markers.length; i++) {
+ IMarker marker = markers[i];
+ if (marker.getAttribute(JtidyPlugin.MARKER_NAME) != null) {
+ marker.delete();
+ }
+ }
+ } catch (CoreException e) {
+ //LOGGING
+ }
+ }
+
+ /**
+ * Parses the Document with Tidy.
+ */
+ protected void parseDocument(boolean writeBack) throws ParseFailedException {
+ IDocument doku = fTextEditor.getDocumentProvider().getDocument(fTextEditor.getEditorInput());
+ assertNotNull(doku);
+ String content = doku.get();
+ IFile file = (IFile) fTextEditor.getEditorInput().getAdapter(IFile.class);
+ assertNotNull(file);
+ byte[] ret = parseStreamOfFile(new ByteArrayInputStream(content.getBytes()), file);
+ if (writeBack) {
+ if (ret.length != 0) {
+ String cleanedContent = new String(ret);
+ doku.set(cleanedContent);
+ } else {
+ displayError(
+ "Formatting skipped",
+ "This document has errors that must be fixed before using HTML Tidy to generate a tidied up version.");
+ }
+
+ }
+ }
+
+ /**
+ * Throws a ParseFailedException, if the given obj is null
+ *
+ * @param obj
+ * @throws ParseFailedException
+ */
+ protected void assertNotNull(Object obj) throws ParseFailedException {
+ if (obj == null) {
+ throw new ParseFailedException("A expected 'non-null' Value was null");
+ }
+ }
+
+ /**
+ * Updates the enable state of the parent action
+ * @param action
+ */
+ protected void updateParent(IAction action) {
+ action.setEnabled(fTextEditor != null || fSelection != null);
+ }
+
+ /**
+ * Parses all Files in the given selection...
+ */
+ protected void parseSelection(boolean writeBack) {
+ Iterator iterator = null;
+ iterator = fSelection.iterator();
+ while (iterator.hasNext()) {
+ // obj => selected object in the view
+ Object obj = iterator.next();
+
+ // is it a resource
+ if (obj instanceof IResource) {
+ IResource resource = (IResource) obj;
+
+ // check if it's a file resource
+ switch (resource.getType()) {
+
+ case IResource.FILE :
+ // single file:
+ IFile file = (IFile) resource;
+
+ InputStream in;
+ try {
+ in = file.getContents();
+ byte[] ret = parseStreamOfFile(in, file);
+
+ if (writeBack) {
+ if (ret.length != 0) {
+ InputStream source = new ByteArrayInputStream(ret);
+ file.setContents(source, IFile.KEEP_HISTORY, null);
+
+ } else {
+ displayError(
+ "Formatting skipped",
+ "This document has errors that must be fixed before using HTML Tidy to generate a tidied up version.");
+ }
+ }
+ } catch (CoreException e) {
+ }
+ }
+ }
+ }
+ }
+ /**
+ * Method error.
+ * @param string
+ * @param string1
+ */
+ private void error(String lable, String message) {
+
+ // TODO:
+ }
+
+ /**
+ * Opens an error dialog to display the given message.
+ *
+ * @param message the error message to show
+ */
+ private void displayError(final String lable, final String message) {
+ final Shell parentShell = getShell();
+ parentShell.getDisplay().syncExec(new Runnable() {
+ public void run() {
+ MessageDialog.openError(parentShell, lable, message);
+ }
+ });
+ }
+ /**
+ * Method getShell.
+ * @return Shell
+ */
+ protected abstract Shell getShell();
+
+ /**
+ * Updates the Selection: if the given selection is of type
+ * IStruckturedSelection, fSection is set to this, otehrwise the field is
+ * set to null.
+ * @param sel
+ */
+ protected void updateSelection(ISelection sel) {
+ if (sel instanceof IStructuredSelection) {
+ fSelection = (IStructuredSelection) sel;
+ // REVISIT: further determination of types?
+ } else {
+ fSelection = null;
+ }
+ }
+
+ /**
+ * If the given WorkbenchPart is of type ITextEditor, fTextEditor is set to
+ * this value, otherwise to null
+ *
+ */
+ protected void updateEditor(IEditorPart part) {
+ if (part instanceof ITextEditor) {
+ fTextEditor = (ITextEditor) part;
+ } else {
+ fTextEditor = null;
+ }
+ }
+
+ protected IEditorPart getEditor() {
+ return fTextEditor;
+ }
+}
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