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package org.eclipse.e4.tools.css.spy;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.e4.ui.css.core.dom.ExtendedDocumentCSS;
import org.eclipse.e4.ui.css.core.engine.CSSEngine;
import org.eclipse.e4.ui.css.swt.dom.WidgetElement;
import org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngine;
import org.eclipse.e4.ui.css.swt.theme.IThemeEngine;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.w3c.css.sac.CSSParseException;
import org.w3c.dom.stylesheets.StyleSheet;
import org.w3c.dom.stylesheets.StyleSheetList;
public class CSSScratchPadWindow extends Dialog {
private IThemeEngine themeEngine;
public CSSScratchPadWindow(Shell parentShell, IThemeEngine themeEngine) {
super(parentShell);
this.themeEngine = themeEngine;
setShellStyle(SWT.DIALOG_TRIM | SWT.RESIZE/* | SWT.PRIMARY_MODAL */);
// setShellStyle(SWT.DIALOG_TRIM | SWT.MAX | SWT.RESIZE
// | getDefaultOrientation());
}
@Override
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
newShell.setText("CSS Scratchpad");
}
private static final int APPLY_ID = IDialogConstants.OK_ID + 100;
private Text cssText;
private Text exceptions;
@Override
protected Control createDialogArea(Composite parent) {
Composite outer = (Composite) super.createDialogArea(parent);
SashForm sashForm = new SashForm(outer, SWT.VERTICAL);
cssText = new Text(sashForm, SWT.BORDER | SWT.MULTI | SWT.WRAP
| SWT.V_SCROLL);
exceptions = new Text(sashForm, SWT.BORDER | SWT.MULTI | SWT.READ_ONLY);
GridDataFactory.fillDefaults().grab(true, true).applyTo(sashForm);
sashForm.setWeights(new int[] { 80, 20 });
return outer;
}
@Override
protected void createButtonsForButtonBar(Composite parent) {
createButton(parent, APPLY_ID, "Apply", true);
createButton(parent, IDialogConstants.OK_ID, "Close", false);
// createButton(parent, IDialogConstants.CANCEL_ID,
// IDialogConstants.CANCEL_LABEL, false);
}
/**
* Return the initial size of the dialog.
*/
@Override
protected Point getInitialSize() {
return new Point(600, 500);
}
@Override
protected void buttonPressed(int buttonId) {
switch (buttonId) {
case APPLY_ID:
applyCSS();
break;
default:
super.buttonPressed(buttonId);
}
}
private void applyCSS() {
long start = System.nanoTime();
exceptions.setText("");
CSSEngine engine = WidgetElement.getEngine(getShell().getDisplay());
if (engine == null) {
exceptions.setText("No CSS Engine available");
}
if (themeEngine != null) {
// FIXME: expose this new protocol
((ThemeEngine) themeEngine).resetCurrentTheme();
}
ExtendedDocumentCSS doc = (ExtendedDocumentCSS) engine
.getDocumentCSS();
List<StyleSheet> sheets = new ArrayList<StyleSheet>();
StyleSheetList list = doc.getStyleSheets();
for (int i = 0; i < list.getLength(); i++) {
sheets.add(list.item(i));
}
try {
Reader reader = new StringReader(cssText.getText());
sheets.add(0, engine.parseStyleSheet(reader));
doc.removeAllStyleSheets();
for (StyleSheet sheet : sheets) {
doc.addStyleSheet(sheet);
}
engine.reapply();
long nanoDiff = System.nanoTime() - start;
exceptions.setText("Total time: " + (nanoDiff / 1000000) + "ms");
} catch (CSSParseException e) {
exceptions.setText("Error: line " + e.getLineNumber() + " col "
+ e.getColumnNumber() + ": " + e.getLocalizedMessage());
} catch (IOException e) {
exceptions.setText("Error: " + e.getLocalizedMessage());
}
}
}
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