org.eclipse.buckminster.generic.ui.actions.ViewInBrowserAction.java Source code

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Here is the source code for org.eclipse.buckminster.generic.ui.actions.ViewInBrowserAction.java

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/*******************************************************************
 * Copyright (c) 2006-2013, Cloudsmith Inc.
 * The code, documentation and other materials contained herein
 * are the sole and exclusive property of Cloudsmith Inc. and may
 * not be disclosed, used, modified, copied or distributed without
 * prior written consent or license from Cloudsmith Inc.
 ******************************************************************/

package org.eclipse.buckminster.generic.ui.actions;

import org.eclipse.buckminster.generic.ui.GenericUiPlugin;
import org.eclipse.buckminster.generic.ui.Messages;
import org.eclipse.buckminster.generic.ui.utils.UiUtils;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.browser.IWebBrowser;
import org.eclipse.ui.browser.IWorkbenchBrowserSupport;

/**
 * Opens an internal or external browser for a selected object that is adaptable
 * to IBrowseable, or to IBrowseableFeed if the boolean flag feed is true.
 * 
 * @author Henrik Lindberg
 * 
 */
public class ViewInBrowserAction extends AbstractAction {
    private IWorkbenchBrowserSupport browserSupport;

    private boolean internal;

    private boolean feed;

    /**
     * @see ViewInBrowserAction#ViewInBrowserAction(Viewer, boolean, String,
     *      boolean)
     * @param viewer
     * @param internal
     */
    public ViewInBrowserAction(Viewer viewer, boolean internal) {
        this(viewer, internal, null, false);
    }

    /**
     * Create a ViewInBrowserAction configured for a particular type of content.
     * 
     * @param viewer
     *            - the viewer where the action is performed
     * @param internal
     *            - true if internal browser should be used (may still open in
     *            external)
     * @param what
     *            - a label for what is opened, can be null (e.g. "content",
     *            "feed", "page").
     * @param feed
     *            - flag indicating that selected object is adapted to
     *            IBrowseableFeed instead of IBrowseable
     */
    public ViewInBrowserAction(Viewer viewer, boolean internal, String what, boolean feed) {
        super(viewer);
        this.browserSupport = UiUtils.getWorkbench().getBrowserSupport();
        this.internal = internal;
        this.feed = feed;
        String txt = what != null
                ? NLS.bind(Messages.view_0_in_1_, what,
                        (internal ? Messages.browser_internal : Messages.browser_external))
                : NLS.bind(Messages.view_in_0_, (internal ? Messages.browser_internal : Messages.browser_external));
        setText(txt);
        setToolTipText(txt);
        setImageDescriptor(feed ? GenericUiPlugin.getImageDescriptor("icons/rssfeed.png") //$NON-NLS-1$
                : UiUtils.getImageDescriptor("file.html")); //$NON-NLS-1$
    }

    @Override
    public void run() {
        IStructuredSelection selection = getStructuredSelection();
        Object[] selected;
        if (selection == null || (selected = selection.toArray()).length < 1) {
            showMessage(Messages.show_in_browser, Messages.nothing_was_selected);
            return;
        }
        Object sel = selected[0];
        IDescribedURL describedURL = null;
        if (sel instanceof IAdaptable) {
            if (feed)
                describedURL = (IDescribedURL) ((IAdaptable) sel).getAdapter(IBrowseableFeed.class);
            else
                describedURL = (IDescribedURL) ((IAdaptable) sel).getAdapter(IBrowseable.class);

        }
        if (describedURL == null) {
            showError(Messages.can_not_open_browser, Messages.no_valid_URL_for_selected_object);
            return;
        }

        IWebBrowser browser;
        try {
            browser = browserSupport.createBrowser(
                    internal ? IWorkbenchBrowserSupport.AS_EDITOR : IWorkbenchBrowserSupport.AS_EXTERNAL, null,
                    describedURL.getName(), describedURL.getTooltip());
            browser.openURL(describedURL.getBrowseableURL());
        } catch (PartInitException e) {
            e.printStackTrace();
        }

    }
}