| /******************************************************************************* |
| * Copyright (c) 2014 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: |
| * Leo Denault <ldena023@uottawa.ca> - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.e4.tools.orion.text.editor; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.e4.tools.orion.editor.builder.IHTMLBuilder; |
| import org.eclipse.e4.tools.orion.editor.builder.css.CSSBuilder; |
| import org.eclipse.e4.tools.orion.editor.builder.html.HTMLBuilder; |
| import org.eclipse.e4.tools.orion.editor.builder.js.JSBuilder; |
| import org.eclipse.e4.tools.orion.editor.swt.IDirtyListener; |
| import org.eclipse.e4.tools.orion.editor.swt.OrionEditorControl; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.IEditorSite; |
| import org.eclipse.ui.ISaveablePart; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.part.EditorPart; |
| import org.eclipse.ui.part.FileEditorInput; |
| |
| public class OrionEditor extends EditorPart implements IDirtyListener { |
| |
| private static final String CSS_EXTENSION = "css"; |
| private static final String JS_EXTENSION = "js"; |
| |
| private OrionEditorControl control; |
| private IFile source; |
| private IHTMLBuilder builder; |
| |
| @Override |
| public void doSave(IProgressMonitor monitor) { |
| if (isDirty()) { |
| boolean success = true; |
| try { |
| InputStream contentStream = new ByteArrayInputStream(control |
| .getText().getBytes("UTF-8")); |
| source.setContents(contentStream, IFile.KEEP_HISTORY, monitor); |
| } catch (Exception e) { |
| success = false; |
| Activator |
| .getDefault() |
| .getLog() |
| .log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, |
| "Failed to save CSS", e)); |
| } |
| |
| if (success) { |
| control.setDirty(false); |
| } else { |
| monitor.setCanceled(true); |
| } |
| } else { |
| monitor.done(); |
| } |
| } |
| |
| @Override |
| public void doSaveAs() { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public void init(IEditorSite site, IEditorInput input) |
| throws PartInitException { |
| if (!(input instanceof FileEditorInput)) { |
| throw new PartInitException(new Status(IStatus.ERROR, |
| Activator.PLUGIN_ID, |
| "Expected editor input to be of type FileEditorInput")); |
| } |
| |
| setSite(site); |
| setInput(input); |
| setPartName(input.getName()); |
| |
| FileEditorInput fileInput = ((FileEditorInput) input); |
| if (fileInput != null) { |
| source = fileInput.getFile(); |
| } |
| } |
| |
| @Override |
| public boolean isDirty() { |
| return (control == null || control.isDisposed()) ? false : control |
| .isDirty(); |
| } |
| |
| @Override |
| public boolean isSaveAsAllowed() { |
| // TODO Auto-generated method stub |
| return false; |
| } |
| |
| @Override |
| public void createPartControl(Composite parent) { |
| try { |
| String text = ""; |
| // Assume HTML context for files other than CSS and JS |
| builder = new HTMLBuilder(); |
| |
| if (source != null) { |
| String extension = source.getFileExtension(); |
| |
| if (extension.equals(CSS_EXTENSION)) { |
| builder = new CSSBuilder(""); |
| } else if (extension.equals(JS_EXTENSION)) { |
| builder = new JSBuilder(); |
| } |
| |
| text = loadFile(source.getContents(), 1024); |
| } |
| |
| control = new OrionEditorControl(parent, SWT.NONE, builder); |
| control.addDirtyListener(this); |
| control.setText(text); |
| } catch (Exception e) { |
| Activator |
| .getDefault() |
| .getLog() |
| .log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, |
| "Failed to load CSS", e)); |
| } |
| } |
| |
| @Override |
| public void setFocus() { |
| if (control != null) { |
| control.setFocus(); |
| } |
| } |
| |
| public String getContents() { |
| return control != null ? control.getText() : ""; |
| } |
| |
| public void setContents(String contents) { |
| if (control != null && !control.getText().equals(contents)) { |
| control.setText(contents); |
| control.setDirty(true); |
| } |
| } |
| |
| public IHTMLBuilder getBuilder() { |
| return builder; |
| } |
| |
| /** |
| * Loads the content of the given InputStream into a String and returns it. |
| * |
| * @param in |
| * The InputStream of the file to read from. |
| * @param bufferSize |
| * The size of the buffer used to transfer the contents of the |
| * InputStream to the String. |
| * @return A String containing the contents of the file. |
| * @throws IOException |
| * If there was an error reading from the file. |
| */ |
| public String loadFile(final InputStream in, final int bufferSize) |
| throws IOException { |
| final char[] buffer = new char[bufferSize]; |
| final StringBuilder out = new StringBuilder(); |
| final Reader reader = new InputStreamReader(in, "UTF-8"); |
| try { |
| int size = reader.read(buffer, 0, buffer.length); |
| while (size > 0) { |
| out.append(buffer, 0, size); |
| size = reader.read(buffer, 0, buffer.length); |
| } |
| } finally { |
| reader.close(); |
| } |
| return out.toString(); |
| } |
| |
| @Override |
| public void dirtyChanged(boolean dirty) { |
| firePropertyChange(ISaveablePart.PROP_DIRTY); |
| } |
| } |