| /******************************************************************************* |
| * Copyright (c) 2018 Red Hat Inc. and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Lucas Bullen (Red Hat Inc.) - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * Browser: Resize the shell to the fit the html content after it's loaded. |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| * |
| * @since 4.8 |
| */ |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.browser.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet372 { |
| static Double width = null; |
| public static void main(String [] args) { |
| int maximumWidth = 200; |
| int maximumHeight= 2000; |
| |
| String html = "<HTML><HEAD><TITLE>HTML Test</TITLE></HEAD><BODY>"; |
| for (int i = 0; i < 15; i++) html += "<P>This is line "+i+"</P>"; |
| html += "</BODY></HTML>"; |
| |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setText("Snippet 372"); |
| shell.setLayout(new FillLayout()); |
| Browser browser; |
| try { |
| browser = new Browser(shell, SWT.NONE); |
| } catch (SWTError e) { |
| System.out.println("Could not instantiate Browser: " + e.getMessage()); |
| display.dispose(); |
| return; |
| } |
| browser.setText(html); |
| browser.addProgressListener(ProgressListener.completedAdapter(event -> { |
| // Set the display to something known to be smaller than the content |
| shell.setSize(50, 50); |
| browser.execute("document.getElementsByTagName(\"html\")[0].style.whiteSpace = \"nowrap\""); //$NON-NLS-1$ |
| // Save the width to either be a decided maximum or the browser's content width plus the margin |
| Double width = Math.min(maximumWidth, 10 + (Double) browser.evaluate("return document.body.scrollWidth;")); //$NON-NLS-1$ |
| shell.setSize(width.intValue(), 0); |
| browser.execute("document.getElementsByTagName(\"html\")[0].style.whiteSpace = \"normal\""); //$NON-NLS-1$ |
| shell.layout(); |
| // Set the height to either be a decided maximum or the browser's content height plus the margin |
| Double height = Math.min(maximumHeight, 5 + (Double) browser.evaluate("return document.body.scrollHeight;")); //$NON-NLS-1$ |
| shell.setSize(width.intValue(), height.intValue()); |
| })); |
| |
| shell.open(); |
| while (!shell.isDisposed()) { |
| shell.layout(); |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| display.dispose(); |
| } |
| } |
