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package org.eclipse.e4.ui.preferences;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.ByteBuffer;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.UnmappableCharacterException;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.filebuffers.IFileBufferStatusCodes;
import org.eclipse.core.internal.filebuffers.FileBuffersPlugin;
import org.eclipse.core.internal.filebuffers.NLSUtility;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngine;
import org.eclipse.e4.ui.css.swt.theme.ITheme;
import org.eclipse.e4.ui.css.swt.theme.IThemeEngine;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
import org.eclipse.e4.ui.workbench.IPresentationEngine;
import org.eclipse.e4.ui.workbench.modeling.EPartService;
import org.eclipse.jface.text.IDocument;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.EditorReference;
import org.eclipse.ui.internal.WorkbenchPage;
import org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor;
import org.eclipse.ui.internal.tweaklets.PreferencePageEnhancer;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.ui.texteditor.IDocumentProvider;
import org.eclipse.xtext.ui.editor.XtextEditor;
public class CSSEditorPreferences extends PreferencePageEnhancer {
ITheme selection;
XtextEditor cssEditor;
IThemeEngine engine;
@SuppressWarnings("restriction")
@Override
public void createContents(Composite parent) {
IWorkbenchWindow wbw = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
MWindow hostWin = (MWindow) wbw.getService(MWindow.class);
EPartService partService = hostWin.getContext().get(EPartService.class);
MPart editor = partService.createPart(CompatibilityEditor.MODEL_ELEMENT_ID);
engine = hostWin.getContext().get(IThemeEngine.class);
IFile file = updateInput();
IEditorInput input = new FileEditorInput(file);
IWorkbenchPage wbPage = wbw.getActivePage();
EditorReference reference = ((WorkbenchPage) wbPage).createEditorReferenceForPart(editor,
input,
"org.eclipse.e4.CSS", null); //$NON-NLS-1$
IEclipseContext localContext = hostWin.getContext().createChild();
localContext.set(IEditorInput.class, input);
localContext.set(EditorReference.class, reference);
// This is subtle; unless the element is hooked into the model it won't
// fire events
hostWin.getSharedElements().add(editor);
// Render it
IPresentationEngine renderer = hostWin.getContext().get(IPresentationEngine.class);
Composite composite3 = new Composite(parent, SWT.BORDER);
composite3.setLayout(new FillLayout());
GridData data = new GridData(SWT.CENTER, SWT.CENTER, true, true, 2, 2);
data.widthHint = 500;
data.heightHint = 500;
composite3.setLayoutData(data);
Object createdElement = renderer.createGui(editor, composite3, localContext);
partService.activate(editor);
IEditorPart tmpEditor = editor.getContext().get(IEditorPart.class);
if (tmpEditor instanceof XtextEditor) {
cssEditor = (XtextEditor) tmpEditor;
}
}
@Override
public void setSelection(Object sel) {
if (sel instanceof ITheme) {
ITheme newTheme = (ITheme) sel;
ITheme oldSelection = selection;
selection = newTheme;
if (oldSelection != null && !newTheme.getId().equals(oldSelection.getId())) {
IFile file = updateInput();
IEditorInput input = new FileEditorInput(file);
cssEditor.setInput(input);
}
}
}
@Override
public void performOK() {
if (cssEditor.isDirty()) {
// make a copy of file
// cssEditor.doSave(new NullProgressMonitor());
IDocumentProvider docProvider = cssEditor.getDocumentProvider();
IEditorInput editorInput = cssEditor.getEditorInput();
IDocument doc = docProvider.getDocument(editorInput);
String more = doc.get();
IPath path = new Path(
System.getProperty("user.home") + System.getProperty("file.separator") + ".e4css" + System.getProperty("file.separator") + editorInput.getName()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
byte[] bytes = more.getBytes();
FileOutputStream outputStream = null;
try {
outputStream = new FileOutputStream(path.toOSString());
outputStream.write(bytes, 0, bytes.length);
} catch (FileNotFoundException e) {
} catch (IOException e) {
} finally {
if (outputStream != null)
try {
outputStream.close();
} catch (IOException e) {
}
}
if (engine instanceof ThemeEngine) {
ArrayList<String> styleSheets = new ArrayList<String>();
styleSheets.add(path.toOSString());
((ThemeEngine) engine).themeModified(selection, styleSheets );
}
cssEditor.doRevertToSaved();
}
}
IFile updateInput() {
IProject newProject = ResourcesPlugin.getWorkspace().getRoot()
.getProject(".e4css"); //$NON-NLS-1$
URL styleSheetURL = null;
if (engine instanceof ThemeEngine) {
List<String> ss = ((ThemeEngine) engine).getStylesheets(selection);
if (ss.size() > 0) {
// For now just get the first element
String path = ss.get(0);
((ThemeEngine) engine).getCSSEngine().getResourcesLocatorManager();
try {
styleSheetURL = FileLocator.toFileURL(new URL(path));
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
IProjectDescription desc = newProject.getWorkspace()
.newProjectDescription(newProject.getName());
IFile file = null;
try {
if (!newProject.exists())
newProject.create(desc, null);
if (!newProject.isOpen()) {
newProject.open(null);
}
newProject.setHidden(true);
// currentTheme.
IPath location = new Path(styleSheetURL.getPath());
// IPath location = new Path(styleSheetURL.getPath());
file = newProject.getFile(location.lastSegment());
if (!file.exists())
file.createLink(location, IResource.NONE, null);
} catch (CoreException e) {
e.printStackTrace();
}
return file;
}
@Override
public void performCancel() {
if (cssEditor.isDirty()) cssEditor.doRevertToSaved();
}
@Override
public void performDefaults() {
//reset
}
}
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