com.aptana.ide.intro.browser.CoreBrowserEditor.java Source code

Introduction

Here is the source code for com.aptana.ide.intro.browser.CoreBrowserEditor.java

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/**
 * Copyright (c) 2005-2006 Aptana, Inc.
 *
 * 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. If redistributing this code,
 * this entire header must remain intact.
 */
package com.aptana.ide.intro.browser;

import java.io.File;
import java.io.FileInputStream;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.ProgressEvent;
import org.eclipse.swt.browser.ProgressListener;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.internal.browser.WebBrowserEditor;

import com.aptana.ide.core.FileUtils;

/**
 * Core browser editor for displaying a url.
 * 
 * @author Kevin Sawicki
 */
public class CoreBrowserEditor extends WebBrowserEditor {

    private CoreBrowserEditorInput browserInput;
    private Composite displayArea;

    /**
     * Core browser editor ID
     */
    public static final String ID = "com.aptana.ide.intro.browserEditor"; //$NON-NLS-1$

    /**
     * @see org.eclipse.ui.internal.browser.WebBrowserEditor#isSaveAsAllowed()
     */
    public boolean isSaveAsAllowed() {
        if (browserInput != null) {
            return browserInput.isSaveAsAllowed();
        }
        return false;
    }

    /**
     * @see org.eclipse.ui.internal.browser.WebBrowserEditor#doSaveAs()
     */
    public void doSaveAs() {
        if (browserInput != null) {
            String fileName = browserInput.getSaveAsFileName();
            File file = browserInput.getSaveAsFile();
            if (fileName != null && file != null && file.exists() && file.canRead()) {
                FileDialog dialog = new FileDialog(displayArea.getShell(), SWT.SAVE);
                dialog.setFileName(fileName);
                dialog.setFilterExtensions(new String[] { "*.html", "*.htm" }); //$NON-NLS-1$ //$NON-NLS-2$
                String outputName = dialog.open();
                if (outputName != null) {
                    FileInputStream stream;
                    try {
                        stream = new FileInputStream(file);
                        FileUtils.writeStreamToFile(stream, outputName);
                    } catch (Exception e) {
                        MessageDialog.openError(displayArea.getShell(), Messages.CoreBrowserEditor_ErrorSave_Title,
                                Messages.CoreBrowserEditor_ErrorSave_Message + e.getMessage());
                    }

                }
            }
        }
    }

    /**
     * Adds a dispose listener to the main control of this editor
     * 
     * @param listener
     */
    public void addDisposeListener(DisposeListener listener) {
        if (displayArea != null) {
            displayArea.addDisposeListener(listener);
        }
    }

    /**
     * Removes a dispose listener from the main control of this editor
     * 
     * @param listener
     */
    public void removeDisposeListener(DisposeListener listener) {
        if (displayArea != null) {
            displayArea.removeDisposeListener(listener);
        }
    }

    /**
     * @see org.eclipse.ui.internal.browser.WebBrowserEditor#createPartControl(org.eclipse.swt.widgets.Composite)
     */
    public void createPartControl(Composite parent) {
        displayArea = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.horizontalSpacing = 0;
        layout.verticalSpacing = 0;
        layout.numColumns = 1;
        displayArea.setLayout(layout);
        displayArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        super.createPartControl(displayArea);

        Browser browser = webBrowser.getBrowser();
        if (browser != null) {
            webBrowser.getBrowser().addLocationListener(new CoreBrowserLocationListener());
            webBrowser.getBrowser().addProgressListener(new ProgressListener() {

                public void completed(ProgressEvent event) {
                    if (browserInput.getScript() != null) {
                        webBrowser.getBrowser().execute(browserInput.getScript());
                    }
                }

                public void changed(ProgressEvent event) {
                    // TODO Auto-generated method stub

                }

            });
            webBrowser.getBrowser().addListener(SWT.MenuDetect, new Listener() {

                public void handleEvent(Event event) {
                    event.doit = false;
                }
            });
        }
    }

    /**
     * @see org.eclipse.ui.internal.browser.WebBrowserEditor#init(org.eclipse.ui.IEditorSite,
     *      org.eclipse.ui.IEditorInput)
     */
    public void init(IEditorSite site, IEditorInput input) throws PartInitException {
        super.init(site, input);
        if (input instanceof CoreBrowserEditorInput) {
            browserInput = (CoreBrowserEditorInput) input;
            if (!browserInput.isAlreadyOpened()) {
                browserInput.setAlreadyOpened();
            } else if (browserInput.isOnlyOneAllowed()) {
                throw new PartInitException("Browser already opened with same input"); //$NON-NLS-1$
            }
            if (browserInput.getImage() != null) {
                Image oldImage = image;
                image = browserInput.getImage().createImage();
                setTitleImage(image);
                if (oldImage != null && !oldImage.isDisposed()) {
                    oldImage.dispose();
                }
            }
        } else {
            throw new PartInitException("Input must be CoreBrowserEditorInput"); //$NON-NLS-1$
        }
    }

    /**
     * Executes the script in the editor input
     */
    public void executeScript() {
        if (browserInput != null && browserInput.getScript() != null) {
            if (webBrowser != null && webBrowser.getBrowser() != null) {
                webBrowser.getBrowser().execute(browserInput.getScript());
            }
        }
    }

    /**
     * @param url
     */
    public void setURL(String url) {
        if (webBrowser != null && webBrowser.getBrowser() != null) {
            webBrowser.getBrowser().setUrl(url);
        }
    }
}