Example usage for org.eclipse.jface.operation IRunnableWithProgress IRunnableWithProgress

List of usage examples for org.eclipse.jface.operation IRunnableWithProgress IRunnableWithProgress

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Introduction

In this page you can find the example usage for org.eclipse.jface.operation IRunnableWithProgress IRunnableWithProgress.

Prototype

IRunnableWithProgress

Source Link

Usage

From source file:com.bdaum.zoom.ui.internal.commands.MigrateCatalogCommand.java

License:Open Source License

@Override
public void run() {
    IDbManager dbManager = Core.getCore().getDbManager();
    File catFile = dbManager.getFile();
    if (catFile != null) {
        Job[] criticalJobs = Job.getJobManager().find(Constants.CRITICAL);
        if (criticalJobs.length > 0) {
            AcousticMessageDialog.openInformation(getShell(), Messages.MigrateCatActionDelegate_cat_migratiion,
                    Messages.MigrateCatActionDelegate_cannot_execute);
            return;
        }/*from   w w  w .j a  v a2  s  .  c  om*/
        MigrateDialog dialog = new MigrateDialog(getShell(), catFile);
        if (dialog.open() == MigrateDialog.OK) {
            final MigrationPolicy policy = dialog.getResult();
            File targetFile = new File(policy.getTargetCatalog());
            if (targetFile.exists() && !AcousticMessageDialog.openQuestion(getShell(),
                    Messages.MigrateCatActionDelegate_cat_migratiion,
                    NLS.bind(Messages.MigrateCatActionDelegate_target_exists, targetFile.getName())))
                return;
            targetFile.delete();
            IDbFactory dbFactory = Core.getCore().getDbFactory();
            final IDbManager newDbManager = dbFactory.createDbManager(policy.getTargetCatalog(), true, false,
                    false);
            IRunnableWithProgress runnable1 = new IRunnableWithProgress() {
                public void run(IProgressMonitor monitor)
                        throws InvocationTargetException, InterruptedException {
                    CoreActivator.getDefault().getFileWatchManager().setPaused(true,
                            this.getClass().toString());
                    Job.getJobManager().cancel(Constants.FOLDERWATCH);
                    Job.getJobManager().cancel(Constants.SYNCPICASA);
                    Core.waitOnJobCanceled(Constants.FOLDERWATCH, Constants.SYNCPICASA);
                    MigrateOperation op = new MigrateOperation(newDbManager, policy);
                    try {
                        status = op.execute(monitor, MigrateCatalogCommand.this);
                        finalMessage = op.getFinalMessage();
                        severity = op.getSeverity();
                    } catch (ExecutionException e) {
                        status = new Status(IStatus.ERROR, UiActivator.PLUGIN_ID,
                                Messages.MigrateCatActionDelegate_internal_error, e);
                    }
                }
            };
            ZProgressMonitorDialog pm = new ZProgressMonitorDialog(getShell());
            try {
                pm.run(true, true, runnable1);
                if (status.getSeverity() == IStatus.ERROR || status.getSeverity() == IStatus.CANCEL) {
                    if (status.getSeverity() == IStatus.ERROR) {
                        AcousticMessageDialog.openError(getShell(),
                                Messages.MigrateCatActionDelegate_cat_migratiion,
                                NLS.bind(Messages.MigrateCatActionDelegate_finished_with_problems,
                                        status.toString()));
                    }
                    targetFile.delete();
                    return;
                }
                if (finalMessage == null)
                    finalMessage = ""; //$NON-NLS-1$
                if (status.getSeverity() == IStatus.WARNING) {
                    finalMessage += '\n' + status.getMessage();
                    severity = MessageDialog.WARNING;
                }
                AcousticMessageDialog finalDialog = new AcousticMessageDialog(getShell(),
                        Messages.MigrateCatActionDelegate_catalog_migration, null, finalMessage, severity,
                        new String[] { Messages.MigrateCatActionDelegate_export_preferences,
                                Messages.MigrateCatActionDelegate_done },
                        1);
                if (finalDialog.open() == 0) {
                    ExportPreferencesWizard wizard = new ExportPreferencesWizard();
                    wizard.init(getActiveWorkbenchWindow().getWorkbench(), null);
                    new WizardDialog(getShell(), wizard).open();
                }
            } catch (InvocationTargetException e) {
                UiActivator.getDefault().logError(Messages.MigrateCatActionDelegate_error_migrating, e);
                targetFile.delete();
            } catch (InterruptedException e) {
                targetFile.delete();
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                UiActivator.getDefault().postCatInit(false);
                CoreActivator.getDefault().getFileWatchManager().setPaused(false, this.getClass().toString());
            }
        }
    }
}

From source file:com.bdaum.zoom.ui.internal.commands.OrphansCommand.java

License:Open Source License

@Override
public void run() {
    AcousticMessageDialog includeDialog = new AcousticMessageDialog(getShell(),
            Messages.FindOrphansActionDelegate_search_orphans, null,
            Messages.FindOrphansActionDelegate_include_off_line, AcousticMessageDialog.QUESTION, new String[] {
                    IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL, IDialogConstants.CANCEL_LABEL },
            1);//  w ww  .  ja  va2s . c  o m
    final int ret = includeDialog.open();
    if (ret >= 2)
        return;
    isCanceled = false;
    ZProgressMonitorDialog dialog = new ZProgressMonitorDialog(getShell());
    IRunnableWithProgress runnable = new IRunnableWithProgress() {
        public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
            ICore core = Core.getCore();
            IVolumeManager volumeManager = core.getVolumeManager();
            List<AssetImpl> set = core.getDbManager().obtainAssets();
            monitor.beginTask(Messages.FindOrphansActionDelegate_scanning_catalog, set.size());
            for (AssetImpl asset : set) {
                URI uri = volumeManager.findExistingFile(asset, false);
                if (uri == null) {
                    if (ret == 0 || !volumeManager.isOffline(asset.getVolume()))
                        result.add(asset);
                    else {
                        String volume = asset.getVolume();
                        if (volume != null && !volume.isEmpty())
                            volumes.add(volume);
                    }
                }
                if (monitor.isCanceled()) {
                    isCanceled = true;
                    break;
                }
                monitor.worked(1);
            }
            monitor.done();
        }
    };
    if (isCanceled)
        return;
    try {
        String v = null;
        if (!volumes.isEmpty()) {
            String[] vols = volumes.toArray(new String[volumes.size()]);
            Arrays.sort(vols);
            StringBuffer sb = new StringBuffer();
            for (String volume : vols) {
                if (sb.length() > 0)
                    sb.append(", "); //$NON-NLS-1$
                sb.append(volume);
            }
            v = sb.toString();
        }
        dialog.run(true, true, runnable);
        if (result.isEmpty()) {
            String message = Messages.FindOrphansActionDelegate_no_orphans_found;
            if (ret == 1 && v != null)
                message += NLS.bind(Messages.FindOrphansActionDelegate_entries_not_checked, v);
            AcousticMessageDialog.openInformation(getShell(), Messages.FindOrphansActionDelegate_orphan_search,
                    message);
        } else {
            boolean show = true;
            if (v != null) {
                String message = NLS.bind(Messages.FindOrphansActionDelegate_n_entries_found, result.size());
                if (ret == 1)
                    message += NLS.bind(Messages.FindOrphansActionDelegate_entries_not_checked, v);
                show = AcousticMessageDialog.openConfirm(getShell(),
                        Messages.FindOrphansActionDelegate_orphan_search, message);
            }
            if (show) {
                SmartCollectionImpl collection = new SmartCollectionImpl(
                        Messages.FindOrphansActionDelegate_orphans, true, false, true, false, null, 0, null, 0,
                        null, Constants.INHERIT_LABEL, null, 0, null);
                collection.addCriterion(
                        new CriterionImpl(ICollectionProcessor.ORPHANS, null, result, QueryField.XREF, false));
                Ui.getUi().getNavigationHistory(getActiveWorkbenchWindow())
                        .postSelection(new StructuredSelection(collection));
            }
        }
    } catch (InvocationTargetException e) {
        UiActivator.getDefault().logError(Messages.FindOrphansActionDelegate_error_scanning_for_orphans, e);
    } catch (InterruptedException e) {
        // nothing to do
    }
}

From source file:com.bdaum.zoom.ui.internal.wizards.ImportFileSelectionPage.java

License:Open Source License

private ImportNode[] createInput(final StorageObject[] files, final StorageObject[] dcims)
        throws InvocationTargetException, InterruptedException {
    nodeCount = 0;//  w w w  .j  a  v  a 2s . c o m
    final ObjectFilter imageFilter = new FileNameExtensionFilter(
            ImageConstants.getSupportedImageFileExtensionsGroups(true), true);
    final List<ImportNode> nodes = new ArrayList<ImportNode>();
    final ZProgressMonitorDialog dialog = new ZProgressMonitorDialog(getShell());
    dialog.create();
    dialog.getShell()
            .setText(Constants.APPLICATION_NAME + " - " + Messages.ImportFileSelectionPage_import_preparation); //$NON-NLS-1$
    dialog.run(true, true, new IRunnableWithProgress() {
        public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
            ImportFileSelectionPage.this.monitor = monitor;
            try {
                monitor.beginTask(Messages.ImportFileSelectionPage_analyzing_folder_contents,
                        IProgressMonitor.UNKNOWN);
                for (int i = 0; i < dcims.length; i++) {
                    StorageObject file = dcims[i];
                    ImportNode node = new ImportNode(null, file.getAbsolutePath(), -1, 0, 0,
                            Messages.ImportFileSelectionPage_photos, Messages.ImportFileSelectionPage_photo);
                    nodes.add(node);
                    node.count = addChildren(node, file, null, imageFilter, monitor);
                    if (monitor.isCanceled())
                        throw new InterruptedException();
                }
                if (files != null && files.length > 0) {
                    ImportNode node = new ImportNode(null, Messages.ImportFileSelectionPage_dropped_files, -1,
                            0, 0, Messages.ImportFileSelectionPage_photos,
                            Messages.ImportFileSelectionPage_photo);
                    nodes.add(node);
                    node.count = addChildren(node, null, files, imageFilter, monitor);
                    if (monitor.isCanceled())
                        throw new InterruptedException();
                }
                for (IMediaSupport ms : CoreActivator.getDefault().getMediaSupport()) {
                    ObjectFilter foreignFilter = new FileNameExtensionFilter(ms.getFileExtensions());
                    for (int i = 0; i < dcims.length; i++) {
                        StorageObject file = media ? ms.getMediaFolder(dcims[i]) : dcims[i];
                        if (file == null)
                            continue;
                        ImportNode node = new ImportNode(null, file.getAbsolutePath(), -1, 0, 0, ms.getPlural(),
                                ms.getName());
                        nodes.add(node);
                        node.count = addChildren(node, file, null, foreignFilter, monitor);
                        if (monitor.isCanceled())
                            throw new InterruptedException();
                    }
                    if (files != null && files.length > 0) {
                        ImportNode node = new ImportNode(null, Messages.ImportFileSelectionPage_dropped_files,
                                -1, 0, 0, ms.getPlural(), ms.getName());
                        nodes.add(node);
                        node.count = addChildren(node, null, files, foreignFilter, monitor);
                        if (monitor.isCanceled())
                            throw new InterruptedException();
                    }
                }
                monitor.done();
            } catch (IOException e) {
                throw new InterruptedException(Messages.ImportFileSelectionPage_io_error_while_scanning);
            } finally {
                ImportFileSelectionPage.this.monitor = null;
            }
        }
    });
    groupedByLabel.setText(byDate
            ? byFilename ? Messages.ImportFileSelectionPage_grouped_by_date_or_filename
                    : Messages.ImportFromDeviceWizard_modification_dates
            : Messages.ImportFileSelectionPage_grouped_by_filename);
    return nodes.toArray(new ImportNode[nodes.size()]);
}

From source file:com.binge.workforce.app.handlers.SaveHandler.java

License:Open Source License

@Execute
public void execute(IEclipseContext context, @Named(IServiceConstants.ACTIVE_SHELL) Shell shell,
        @Named(IServiceConstants.ACTIVE_PART) final MContribution contribution)
        throws InvocationTargetException, InterruptedException {
    final IEclipseContext pmContext = context.createChild();

    ProgressMonitorDialog dialog = new ProgressMonitorDialog(shell);
    dialog.open();/*from  www .ja v  a 2  s  .  com*/
    dialog.run(true, true, new IRunnableWithProgress() {
        public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
            pmContext.set(IProgressMonitor.class.getName(), monitor);
            if (contribution != null) {
                Object clientObject = contribution.getObject();
                //               ContextInjectionFactory.invoke(clientObject, Persist.class, //$NON-NLS-1$
                //                     pmContext, null);
            }
        }
    });

    if (pmContext instanceof IDisposable) {
        ((IDisposable) pmContext).dispose();
    }
}

From source file:com.bluexml.side.clazz.edit.ui.actions.wizards.initializefromclass.InitializerWizard.java

License:Open Source License

@Override
public boolean performFinish() {
    try {/*from  w ww.  j a va 2  s. co m*/
        System.out.println("InitializerWizard.performFinish()"); //$NON-NLS-1$
        InitializerPageWelcome page = (InitializerPageWelcome) getContainer().getCurrentPage();
        final String alf_home = page
                .getFieldValueString(InitializerPageWelcome.Fields.alfresco_home.toString());
        final String alf_ver = page
                .getFieldValueString(InitializerPageWelcome.Fields.alfresco_version.toString());
        side_gene = Boolean
                .parseBoolean(page.getFieldValueString(InitializerPageWelcome.Fields.generate.toString()));

        this.ini = InitializerRegister.getInitializerRegisterFromClassModel(classModel, alf_home, alf_ver);

        final InitializerRegister ini = this.ini;

        // run as long running process
        IRunnableWithProgress runPro = new IRunnableWithProgress() {

            public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                monitor.beginTask(Messages.InitializerWizard_2, -1);
                // initialize models
                try {
                    //TODO use fork to run this job and use syncExec only for action than require to run in UI thread instead of do all the job in UI thread
                    // so progress bar can be updated ...
                    ini.initialize();
                    classModel.getProject().refreshLocal(IResource.DEPTH_INFINITE, new NullProgressMonitor());
                } catch (Exception e) {
                    throw new InvocationTargetException(e);
                }
                monitor.done();

            }
        };

        this.getContainer().run(true, true, runPro);

        while (!ini.isInitialized()) { //$NON-NLS-1$
            try {
                this.wait(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
                Activator.getDefault().getLog().log(new Status(Status.ERROR, Activator.PLUGIN_ID,
                        "Alfresco Extension project creation fail !", e)); //$NON-NLS-1$
                return false;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        Activator.getDefault().getLog().log(
                new Status(Status.ERROR, Activator.PLUGIN_ID, "Alfresco Extension project creation fail !", e)); //$NON-NLS-1$
    }
    System.out.println("InitializerWizard.performFinish() DONE"); //$NON-NLS-1$
    return true;
}

From source file:com.bluexml.side.Integration.eclipse.branding.enterprise.wizards.migration.ModelMigrationWizard.java

License:Open Source License

@Override
public boolean performFinish() {
    System.out.println("ModelMigrationWizard.performFinish()");
    final GeneralProjectMigration page = (GeneralProjectMigration) getContainer().getCurrentPage();
    final String libraryId = page.getFieldValueString(GeneralProjectMigration.Fields.library.toString());
    // import library if project do not exists in workspace

    IRunnableWithProgress runnable = new IRunnableWithProgress() {

        public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
            try {
                execute(page, libraryId, monitor);
            } catch (Exception e) {

                throw new InvocationTargetException(e);
            }//from  w  ww  .  ja  v  a  2  s  .  c om
        }
    };

    try {
        this.getContainer().run(true, true, runnable);
    } catch (InvocationTargetException e) {
        Throwable cause = e.getCause();
        Activator.getDefault().getLog()
                .log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, 0, cause.toString(), cause));
        MessageDialog.openError(getShell(), "Error", NLS.bind("Internal error {0}", cause.getMessage())); //$NON-NLS-1$
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return true;
}

From source file:com.bluexml.side.Integration.eclipse.branding.enterprise.wizards.newAlfrescoModule.NewModuleWizard.java

License:Open Source License

@Override
public boolean performFinish() {
    try {/*  w w  w  . j  ava2s .c  o  m*/
        System.out.println("Finish called");

        // get values from the unique page
        GeneralProjectInformationsPage page = (GeneralProjectInformationsPage) getContainer().getCurrentPage();

        // execute maven goal
        final MavenUtil mu = new MavenUtil();

        final String goal = "archetype:generate";
        final File baseDir = getBaseDir();
        if (!baseDir.exists()) {
            baseDir.mkdirs();
        }
        String artifactId = page.getArtifactId();
        final File projectFile = new File(baseDir, artifactId);
        if (projectFile.exists()) {
            // error project already exist
            page.setErrorMessage("artifact :" + artifactId + " already exist, use another value");
            return false;
        }

        // setParameters
        final HashMap<String, String> params = new HashMap<String, String>();
        params.put("groupId", page.getGroupId());

        params.put("artifactId", artifactId);
        params.put("version", page.getArtifactVersion());
        params.put("project-name", page.getArtifactName());

        String moduleType = page.getModuleType();

        Map<String, String> map = archetypes.get(moduleType);
        if (map != null) {
            params.putAll(map);
        } else {
            System.err.println("moduleType do not match");
        }

        IRunnableWithProgress runPro = new IRunnableWithProgress() {

            public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                monitor.beginTask("Start creating alfresco extension project", -1);
                System.out.println("launch maven execution");
                try {
                    MavenExecutionResult result = mu.doMavenGoal(baseDir, new String[] { goal }, params,
                            new String[] {}, false);
                    if (result.getExceptions().size() > 0) {
                        throw new Exception(result.getExceptions().get(0));
                    }
                    System.out.println("refresh baseDir folder");

                    IFileHelper.refreshFolder(currentProject);

                    System.out.println("import new eclipse project into workspace");
                    EclipseUtils.importEclipseProject(projectFile);
                } catch (Exception e) {
                    e.printStackTrace();
                    throw new InterruptedException(e.getMessage());
                }
                monitor.done();
            }

        };

        this.getContainer().run(false, false, runPro);

    } catch (Exception e) {
        e.printStackTrace();
        MessageDialog.openError(getShell(), "Archetype fail to create project see log view for details",
                e.getLocalizedMessage());
        Activator.getDefault().getLog().log(
                new Status(Status.ERROR, Activator.PLUGIN_ID, "Alfresco Extension project creation fail !", e)); //$NON-NLS-1$
    }
    return true;
}

From source file:com.bluexml.side.Requirements.modeler.views.internal.TableView.java

License:Open Source License

protected SelectionListener getHeaderListener() {
    return new SelectionAdapter() {
        /**//www. j  a  v  a 2  s.  c o  m
         * Handles the case of user selecting the header area.
         */
        public void widgetSelected(SelectionEvent e) {

            final TreeColumn column = (TreeColumn) e.widget;
            final IField field = (IField) column.getData();

            try {
                IWorkbenchSiteProgressService progressService = getProgressService();
                if (progressService == null)
                    BusyIndicator.showWhile(getSite().getShell().getDisplay(), new Runnable() {
                        /*
                         * (non-Javadoc)
                         * 
                         * @see java.lang.Runnable#run()
                         */
                        public void run() {
                            resortTable(column, field, new NullProgressMonitor());

                        }
                    });
                else
                    getProgressService().busyCursorWhile(new IRunnableWithProgress() {
                        /*
                         * (non-Javadoc)
                         * 
                         * @see org.eclipse.jface.operation.IRunnableWithProgress#run(org.eclipse.core.runtime.IProgressMonitor)
                         */
                        public void run(IProgressMonitor monitor) {
                            resortTable(column, field, monitor);
                        }
                    });
            } catch (InvocationTargetException e1) {
                IDEWorkbenchPlugin.getDefault().getLog().log(Util.errorStatus(e1));
            } catch (InterruptedException e1) {
                return;
            }

        }

        /**
         * Resort the table based on field.
         * 
         * @param column
         *            the column being updated
         * @param field
         * @param monitor
         */
        private void resortTable(final TreeColumn column, final IField field, IProgressMonitor monitor) {
            TableComparator sorter = getTableSorter();

            monitor.beginTask("Sorting", 100);
            monitor.worked(10);
            if (field.equals(sorter.getTopField()))
                sorter.reverseTopPriority();
            else
                sorter.setTopPriority(field);

            monitor.worked(15);
            PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
                /*
                 * (non-Javadoc)
                 * 
                 * @see java.lang.Runnable#run()
                 */
                public void run() {
                    viewer.refresh();
                    updateDirectionIndicator(column);
                }
            });

            monitor.done();
        }
    };
}

From source file:com.buildml.eclipse.actions.ActionsEditor.java

License:Open Source License

/**
 * Refresh the editor's content. This is typically called when some type of display
 * option changes (e.g. packages have been added), and the content is now
 * different, or if the user resizes the main Eclipse shell. We use a progress monitor,
 * since a redraw operation might take a while.
 * @param forceRedraw true if we want to force a complete redraw of the viewer.
 *///  w  w  w  .j  a v  a  2 s .  c  o  m
public void refreshView(boolean forceRedraw) {

    /* compute the set of option bits that have changed since we were last called */
    int currentOptions = getOptions();
    int changedOptions = previousEditorOptionBits ^ currentOptions;
    previousEditorOptionBits = currentOptions;

    /*
     * Determine whether the packages columns should be shown. Setting the
     * width appropriately is important, especially if the shell was recently resized.
     * TODO: figure out why subtracting 20 pixels is important for matching the column
     * size with the size of the parent composite.
     */
    Display.getDefault().asyncExec(new Runnable() {
        @Override
        public void run() {
            int editorWidth = filesEditorComposite.getClientArea().width - 20;
            int pkgWidth = isOptionSet(EditorOptions.OPT_SHOW_PACKAGES) ? 100 : 0;
            treeColumn.getColumn().setWidth(editorWidth - 2 * pkgWidth);
            pkgColumn.getColumn().setWidth(pkgWidth);
        }
    });

    /*
     * Has the content of the tree changed, or just the visibility of columns? If
     * it's just the columns, then we don't need to re-query the model in order to redisplay.
     * Unless our caller explicitly requested a redraw.
     */
    if (!forceRedraw) {
        return;
    }

    /*
     * We need to re-query the model and redisplay some (or all) of the tree items.
     * Create a new job that will be run in the background, and monitored by the
     * progress monitor. Note that only the portions of this job that update the
     * UI should be run as the UI thread. Otherwise the job appears to block the
     * whole UI.
     */
    IRunnableWithProgress redrawJob = new IRunnableWithProgress() {

        @Override
        public void run(IProgressMonitor monitor) {
            monitor.beginTask("Redrawing editor content...", 2);
            monitor.worked(1);
            Display.getDefault().syncExec(new Runnable() {
                @Override
                public void run() {
                    Object[] expandedElements = actionsTreeViewer.getExpandedElements();
                    actionsTreeViewer.setInput(contentProvider.getRootElements());
                    actionsTreeViewer.refresh();

                    /* 
                     * Ensure that all previously-expanded items are now expanded again.
                     * Note: we can't use setExpandedElements(), as that won't always
                     * open all the parent elements as well.
                     */
                    for (int i = 0; i < expandedElements.length; i++) {
                        actionsTreeViewer.expandToLevel(expandedElements[i], 1);
                    }
                }
            });
            monitor.worked(1);
            monitor.done();
        }
    };

    /* start up the progress monitor service so that it monitors the job */
    IProgressService service = PlatformUI.getWorkbench().getProgressService();
    try {
        service.busyCursorWhile(redrawJob);
    } catch (InvocationTargetException e) {
        // TODO: what to do here?
    } catch (InterruptedException e) {
        // TODO: what to do here?
    }
}

From source file:com.buildml.eclipse.files.FilesEditor.java

License:Open Source License

/**
 * Refresh the editor's content. This is typically called when some type of display
 * option changes (e.g. roots or packages have been added), and the content is now
 * different, or if the user resizes the main Eclipse shell. We use a progress monitor,
 * since a redraw operation might take a while.
 * @param forceRedraw true if we want to force a complete redraw of the viewer.
 *///from w  w w  .j  av a2  s. c o m
public void refreshView(boolean forceRedraw) {

    /* compute the set of option bits that have changed since we were last called */
    int currentOptions = getOptions();
    int changedOptions = previousEditorOptionBits ^ currentOptions;
    previousEditorOptionBits = currentOptions;

    /*
     * Determine whether the packages/scope columns should be shown. Setting the
     * width appropriately is important, especially if the shell was recently resized.
     * TODO: figure out why subtracting 20 pixels is important for matching the column
     * size with the size of the parent composite.
     */
    Display.getDefault().asyncExec(new Runnable() {
        @Override
        public void run() {
            int editorWidth = filesEditorComposite.getClientArea().width - 20;
            int pkgWidth = isOptionSet(EditorOptions.OPT_SHOW_PACKAGES) ? 100 : 0;
            treeColumn.setWidth(editorWidth - 2 * pkgWidth);
            pkgColumn.setWidth(pkgWidth);
            scopeColumn.setWidth(pkgWidth);
        }
    });

    /*
     * Has the content of the tree changed, or just the visibility of columns? If
     * it's just the columns, then we don't need to re-query the model in order to redisplay.
     * Unless our caller explicitly requested a redraw.
     */
    if (!forceRedraw && ((changedOptions & (EditorOptions.OPT_COALESCE_DIRS | EditorOptions.OPT_SHOW_ROOTS)
            | EditorOptions.OPT_SHOW_PACKAGES) == 0)) {
        return;
    }

    if ((changedOptions & EditorOptions.OPT_COALESCE_DIRS) != 0) {
        filesTreeViewer.setInput(contentProvider.getRootElements());
    }

    /*
     * We need to re-query the model and redisplay some (or all) of the tree items.
     * Create a new job that will be run in the background, and monitored by the
     * progress monitor. Note that only the portions of this job that update the
     * UI should be run as the UI thread. Otherwise the job appears to block the
     * whole UI.
     */
    IRunnableWithProgress redrawJob = new IRunnableWithProgress() {

        @Override
        public void run(IProgressMonitor monitor) {
            monitor.beginTask("Redrawing editor content...", 2);
            monitor.worked(1);
            Display.getDefault().syncExec(new Runnable() {
                @Override
                public void run() {
                    Object[] expandedElements = filesTreeViewer.getExpandedElements();
                    filesTreeViewer.setInput(contentProvider.getRootElements());
                    filesTreeViewer.refresh();

                    /* 
                     * Ensure that all previously-expanded items are now expanded again.
                     * Note: we can't use setExpandedElements(), as that won't always
                     * open all the parent elements as well.
                     */
                    for (int i = 0; i < expandedElements.length; i++) {
                        filesTreeViewer.expandToLevel(expandedElements[i], 1);
                    }
                }
            });
            monitor.worked(1);
            monitor.done();
        }
    };

    /* start up the progress monitor service so that it monitors the job */
    IProgressService service = PlatformUI.getWorkbench().getProgressService();
    try {
        service.busyCursorWhile(redrawJob);
    } catch (InvocationTargetException e) {
        // TODO: what to do here?
    } catch (InterruptedException e) {
        // TODO: what to do here?
    }
}