Minimal desktop utilities

[lgpl/argeo-commons.git] / rcp / org.argeo.cms.desktop / src / org / argeo / cms / desktop / mini / MiniBrowser.java

diff --git a/rcp/org.argeo.cms.desktop/src/org/argeo/cms/desktop/mini/MiniBrowser.java b/rcp/org.argeo.cms.desktop/src/org/argeo/cms/desktop/mini/MiniBrowser.java
new file mode 100644 (file)
index 0000000..43b3d78
--- /dev/null
+++ b/rcp/org.argeo.cms.desktop/src/org/argeo/cms/desktop/mini/MiniBrowser.java
@@ -0,0 +1,109 @@
+package org.argeo.cms.desktop.mini;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.browser.Browser;
+import org.eclipse.swt.browser.LocationEvent;
+import org.eclipse.swt.browser.LocationListener;
+import org.eclipse.swt.browser.TitleListener;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.swt.widgets.Text;
+
+public class MiniBrowser {
+       private URL url;
+       private Text addressT;
+       private Browser browser;
+
+       public MiniBrowser(Composite parent, int style) {
+               parent.setLayout(new GridLayout());
+
+               Composite toolBar = new Composite(parent, SWT.NONE);
+               toolBar.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+               toolBar.setLayout(new FillLayout());
+               addressT = new Text(toolBar, SWT.SINGLE | SWT.BORDER);
+               // addressT.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+               addressT.addSelectionListener(new SelectionAdapter() {
+
+                       @Override
+                       public void widgetDefaultSelected(SelectionEvent e) {
+                               setUrl(addressT.getText().trim());
+                       }
+               });
+
+               browser = new Browser(parent, SWT.WEBKIT);
+               browser.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+               browser.addLocationListener(new LocationListener() {
+
+                       @Override
+                       public void changing(LocationEvent event) {
+                       }
+
+                       @Override
+                       public void changed(LocationEvent event) {
+                               try {
+                                       MiniBrowser.this.url = new URL(browser.getUrl());
+                                       addressT.setText(url.toString());
+                               } catch (MalformedURLException e) {
+                                       addressT.setText(e.getMessage());
+                                       throw new IllegalArgumentException("Cannot interpet new URL", e);
+
+                               }
+                       }
+               });
+       }
+
+       public void setUrl(URL url) {
+               this.url = url;
+               if (addressT != null)
+                       addressT.setText(url.toString());
+               if (browser != null)
+                       browser.setUrl(url.toString());
+       }
+
+       public void setUrl(String url) {
+               try {
+                       setUrl(new URL(url));
+               } catch (MalformedURLException e) {
+                       // try with http
+                       try {
+                               setUrl(new URL("http://"+url));
+                               return;
+                       } catch (MalformedURLException e1) {
+                               // nevermind...
+                       }
+                       throw new IllegalArgumentException("Cannot interpret URL " + url, e);
+               }
+       }
+
+       public void addTitleListener(TitleListener titleListener) {
+               browser.addTitleListener(titleListener);
+       }
+
+       public static void main(String[] args) {
+               Display display = Display.getCurrent() == null ? new Display() : Display.getCurrent();
+               Shell shell = new Shell(display, SWT.SHELL_TRIM);
+
+               MiniBrowser miniBrowser = new MiniBrowser(shell, SWT.NONE);
+               miniBrowser.addTitleListener(e -> shell.setText(e.title));
+               String url = args.length > 0 ? args[0] : "http://www.argeo.org";
+               miniBrowser.setUrl(url);
+
+               shell.open();
+               shell.setSize(new Point(800, 480));
+               while (!shell.isDisposed()) {
+                       if (!display.readAndDispatch())
+                               display.sleep();
+               }
+       }
+
+}