| /******************************************************************************* |
| * Copyright (c) 2018 SAP SE and others. |
| * 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 |
| * |
| * Contributors: |
| * SAP SE - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.ide.application.dialogs; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.layout.GridDataFactory; |
| import org.eclipse.jface.layout.GridLayoutFactory; |
| import org.eclipse.jface.layout.PixelConverter; |
| import org.eclipse.jface.layout.TableColumnLayout; |
| import org.eclipse.jface.preference.PreferencePage; |
| import org.eclipse.jface.viewers.ArrayContentProvider; |
| import org.eclipse.jface.viewers.CheckStateChangedEvent; |
| import org.eclipse.jface.viewers.CheckboxTableViewer; |
| import org.eclipse.jface.viewers.ColumnWeightData; |
| import org.eclipse.jface.viewers.ICheckStateListener; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.ITableLabelProvider; |
| import org.eclipse.jface.viewers.LabelProvider; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Table; |
| import org.eclipse.swt.widgets.TableColumn; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.ui.IWorkbench; |
| import org.eclipse.ui.IWorkbenchPreferencePage; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.internal.IWorkbenchHelpContextIds; |
| import org.eclipse.ui.internal.ide.IDEWorkbenchMessages; |
| import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin; |
| import org.eclipse.ui.statushandlers.StatusManager; |
| import org.eclipse.urischeme.IOperatingSystemRegistration; |
| import org.eclipse.urischeme.IScheme; |
| import org.eclipse.urischeme.ISchemeInformation; |
| import org.eclipse.urischeme.IUriSchemeExtensionReader; |
| |
| /** |
| * This page contributes to URL handler for URISchemes in preference page of |
| * General section |
| * |
| */ |
| public class UriSchemeHandlerPreferencePage extends PreferencePage implements IWorkbenchPreferencePage { |
| |
| Text handlerLocation; |
| CheckboxTableViewer tableViewer; |
| private String currentLocation = null; |
| IStatusManagerWrapper statusManagerWrapper = new IStatusManagerWrapper() { |
| }; |
| IMessageDialogWrapper messageDialogWrapper = new IMessageDialogWrapper() { |
| }; |
| |
| IOperatingSystemRegistration operatingSystemRegistration = null; |
| IUriSchemeExtensionReader extensionReader = null; |
| private Composite handlerComposite; |
| |
| @SuppressWarnings("javadoc") |
| public UriSchemeHandlerPreferencePage() { |
| super.setDescription(IDEWorkbenchMessages.UrlHandlerPreferencePage_Page_Description); |
| } |
| |
| @Override |
| public void init(IWorkbench workbench) { |
| if (operatingSystemRegistration == null) { |
| operatingSystemRegistration = IOperatingSystemRegistration.getInstance(); |
| } |
| if (extensionReader == null) { |
| extensionReader = IUriSchemeExtensionReader.newInstance(); |
| } |
| if (operatingSystemRegistration != null) { |
| currentLocation = operatingSystemRegistration.getEclipseLauncher(); |
| } |
| } |
| |
| @Override |
| protected Control createContents(Composite parent) { |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, |
| IWorkbenchHelpContextIds.LINK_HANDLERS_PREFERENCE_PAGE); |
| |
| noDefaultAndApplyButton(); |
| addFiller(parent, 2); |
| createTableViewerForSchemes(parent); |
| createHandlerLocationControls(parent); |
| return parent; |
| } |
| |
| private void addFiller(Composite composite, int horizontalSpan) { |
| PixelConverter pixelConverter = new PixelConverter(composite); |
| Label filler = new Label(composite, SWT.LEFT); |
| GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL); |
| gd.horizontalSpan = horizontalSpan; |
| gd.heightHint = pixelConverter.convertHeightInCharsToPixels(1) / 2; |
| filler.setLayoutData(gd); |
| } |
| |
| private void createTableViewerForSchemes(Composite parent) { |
| Composite editorComposite = new Composite(parent, SWT.NONE); |
| GridData gridData = new GridData(SWT.FILL, SWT.TOP, true, false); |
| gridData.horizontalSpan = 2; |
| gridData.horizontalIndent = 0; |
| editorComposite.setLayoutData(gridData); |
| Table schemeTable = new Table(editorComposite, |
| SWT.H_SCROLL | SWT.V_SCROLL | SWT.SINGLE | SWT.BORDER | SWT.FULL_SELECTION | SWT.CHECK); |
| schemeTable.setHeaderVisible(true); |
| schemeTable.setLinesVisible(true); |
| schemeTable.setFont(parent.getFont()); |
| |
| // Table columns, Scheme name and Scheme Descriptions |
| TableColumnLayout tableColumnlayout = new TableColumnLayout(); |
| editorComposite.setLayout(tableColumnlayout); |
| |
| TableColumn nameColumn = new TableColumn(schemeTable, SWT.NONE, 0); |
| nameColumn.setText(IDEWorkbenchMessages.UrlHandlerPreferencePage_ColumnName_SchemeName); |
| |
| TableColumn descriptionColumn = new TableColumn(schemeTable, SWT.NONE, 1); |
| descriptionColumn.setText(IDEWorkbenchMessages.UrlHandlerPreferencePage_ColumnName_SchemeDescription); |
| |
| TableColumn appColumn = new TableColumn(schemeTable, SWT.NONE, 2); |
| appColumn.setText(IDEWorkbenchMessages.UrlHandlerPreferencePage_ColumnName_Handler); |
| |
| tableColumnlayout.setColumnData(nameColumn, new ColumnWeightData(20)); |
| tableColumnlayout.setColumnData(descriptionColumn, new ColumnWeightData(60)); |
| tableColumnlayout.setColumnData(appColumn, new ColumnWeightData(20)); |
| |
| tableViewer = new CheckboxTableViewer(schemeTable); |
| tableViewer.setContentProvider(ArrayContentProvider.getInstance()); |
| tableViewer.setLabelProvider(new ItemLabelProvider()); |
| |
| TableSchemeSelectionListener listener = new TableSchemeSelectionListener(); |
| tableViewer.addSelectionChangedListener(listener); |
| tableViewer.addCheckStateListener(listener); |
| |
| Collection<UiSchemeInformation> schemeInformationList = Collections.emptyList(); |
| // Gets the schemes from extension points for URI schemes |
| try { |
| schemeInformationList = retrieveSchemeInformationList(); |
| } catch (Exception e) { |
| IStatus status = new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, 1, |
| IDEWorkbenchMessages.UrlHandlerPreferencePage_Error_Reading_Scheme, e); |
| statusManagerWrapper.handle(status, StatusManager.BLOCK | StatusManager.LOG); |
| } |
| tableViewer.setInput(schemeInformationList); |
| |
| for (UiSchemeInformation schemeInformation : schemeInformationList) { |
| tableViewer.setChecked(schemeInformation, schemeInformation.checked); |
| } |
| } |
| |
| private void createHandlerLocationControls(Composite parent) { |
| handlerComposite = new Composite(parent, SWT.NONE); |
| GridLayoutFactory.fillDefaults().numColumns(2).applyTo(handlerComposite); |
| GridDataFactory.fillDefaults().grab(true, false).applyTo(handlerComposite); |
| |
| new Label(handlerComposite, SWT.NONE).setText(IDEWorkbenchMessages.UrlHandlerPreferencePage_Handler_Label); |
| |
| handlerLocation = new Text(handlerComposite, SWT.READ_ONLY | SWT.BORDER); |
| handlerLocation.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); |
| |
| handlerComposite.setVisible(false); // set visible on table selection |
| } |
| |
| /** |
| * Schemes which are part of extension points for URI Schemes and are registered |
| * to operating system are consolidated here |
| * |
| * @return the supported and registered URI schemes of this instance of eclipse |
| * @throws Exception |
| */ |
| private Collection<UiSchemeInformation> retrieveSchemeInformationList() throws Exception { |
| Collection<UiSchemeInformation> returnList = new ArrayList<>(); |
| Collection<IScheme> schemes = extensionReader.getSchemes(); |
| if (operatingSystemRegistration != null) { |
| for (ISchemeInformation info : operatingSystemRegistration.getSchemesInformation(schemes)) { |
| returnList.add(new UiSchemeInformation(info.isHandled(), info)); |
| } |
| } |
| return returnList; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.preference.PreferencePage#performOk() |
| */ |
| @SuppressWarnings("unchecked") |
| @Override |
| public boolean performOk() { |
| if (operatingSystemRegistration == null) { |
| return true; |
| } |
| |
| List<IScheme> toAdd = new ArrayList<>(); |
| List<IScheme> toRemove = new ArrayList<>(); |
| for (UiSchemeInformation info : (Collection<UiSchemeInformation>) tableViewer.getInput()) { |
| if (info.checked && !info.information.isHandled()) { |
| toAdd.add(info.information); |
| } |
| if (!info.checked && info.information.isHandled()) { |
| toRemove.add(info.information); |
| } |
| } |
| |
| try { |
| operatingSystemRegistration.handleSchemes(toAdd, toRemove); |
| } catch (Exception e) { |
| IStatus status = new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, 1, |
| IDEWorkbenchMessages.UrlHandlerPreferencePage_Error_Writing_Scheme, e); |
| statusManagerWrapper.handle(status, StatusManager.BLOCK | StatusManager.LOG); |
| } |
| return true; |
| } |
| |
| private class TableSchemeSelectionListener implements ICheckStateListener, ISelectionChangedListener { |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org. |
| * eclipse.jface.viewers.SelectionChangedEvent) |
| */ |
| @Override |
| public void selectionChanged(SelectionChangedEvent event) { |
| handleSelection(); |
| |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.viewers.ICheckStateListener#checkStateChanged(org.eclipse. |
| * jface.viewers.CheckStateChangedEvent) |
| */ |
| @Override |
| public void checkStateChanged(CheckStateChangedEvent event) { |
| handleCheckbox(event); |
| |
| } |
| |
| private void handleSelection() { |
| IStructuredSelection selection = tableViewer.getStructuredSelection(); |
| Object firstElement = selection != null ? selection.getFirstElement() : null; |
| if (firstElement != null && firstElement instanceof UiSchemeInformation) { |
| setSchemeDetails((UiSchemeInformation) firstElement); |
| handlerComposite.setVisible(true); |
| } |
| } |
| |
| private void setSchemeDetails(UiSchemeInformation schemeInfo) { |
| if (schemeInfo.checked) { |
| handlerLocation.setText(currentLocation); |
| |
| } else if (schemeIsHandledByOther(schemeInfo.information)) { |
| handlerLocation.setText(schemeInfo.information.getHandlerInstanceLocation()); |
| } else { |
| // checkbox not checked and: |
| // - no other handler handles it |
| // - or this eclipse handled it before (checkbox was unchecked but not yet |
| // applied) |
| handlerLocation.setText(IDEWorkbenchMessages.UrlHandlerPreferencePage_Handler_Text_No_Application); |
| } |
| } |
| |
| private void handleCheckbox(CheckStateChangedEvent event) { |
| UiSchemeInformation schemeInformation = (UiSchemeInformation) event.getElement(); |
| |
| if (event.getChecked() && schemeIsHandledByOther(schemeInformation.information)) { |
| // macOS: As lsregister always registers all plist files we cannot set a handler |
| // for a scheme that is already handled by another application. |
| // For Windows and Linux this might work - needs to be tested. |
| // As we think this is a edge case we start with a restrictive implementation. |
| schemeInformation.checked = false; |
| tableViewer.setChecked(schemeInformation, schemeInformation.checked); |
| |
| messageDialogWrapper.openWarning(getShell(), |
| IDEWorkbenchMessages.UriHandlerPreferencePage_Warning_OtherApp, |
| NLS.bind(IDEWorkbenchMessages.UriHandlerPreferencePage_Warning_OtherApp_Description, |
| schemeInformation.information.getHandlerInstanceLocation(), |
| schemeInformation.information.getName())); |
| |
| return; |
| } |
| schemeInformation.checked = event.getChecked(); |
| setSchemeDetails(schemeInformation); |
| tableViewer.update(schemeInformation, null); |
| } |
| } |
| |
| private boolean schemeIsHandledByOther(ISchemeInformation info) { |
| boolean schemeIsNotHandled = !info.isHandled(); |
| boolean handlerLocationIsSet = info.getHandlerInstanceLocation() != null |
| && !info.getHandlerInstanceLocation().isEmpty(); |
| return schemeIsNotHandled && handlerLocationIsSet; |
| } |
| |
| private final class ItemLabelProvider extends LabelProvider implements ITableLabelProvider { |
| |
| @Override |
| public Image getColumnImage(Object element, int columnIndex) { |
| return null; |
| } |
| |
| @Override |
| public String getColumnText(Object element, int columnIndex) { |
| if (element instanceof UiSchemeInformation) { |
| UiSchemeInformation schemeInfo = (UiSchemeInformation) element; |
| switch (columnIndex) { |
| case 0: |
| return schemeInfo.information.getName(); |
| case 1: |
| return schemeInfo.information.getDescription(); |
| case 2: |
| String text = ""; //$NON-NLS-1$ |
| if (schemeInfo.checked) { |
| text = IDEWorkbenchMessages.UrlHandlerPreferencePage_Column_Handler_Text_Current_Application; |
| |
| } else if (schemeIsHandledByOther(schemeInfo.information)) { |
| text = IDEWorkbenchMessages.UrlHandlerPreferencePage_Column_Handler_Text_Other_Application; |
| } |
| return text; |
| default: |
| throw new IllegalArgumentException("Unknown column"); //$NON-NLS-1$ |
| } |
| } |
| return null; // cannot happen |
| } |
| |
| @Override |
| public boolean isLabelProperty(Object element, String property) { |
| return false; |
| } |
| } |
| |
| final static class UiSchemeInformation { |
| public boolean checked; |
| public ISchemeInformation information; |
| |
| public UiSchemeInformation(boolean checked, ISchemeInformation information) { |
| this.checked = checked; |
| this.information = information; |
| } |
| } |
| |
| interface IStatusManagerWrapper { |
| default void handle(IStatus status, int style) { |
| StatusManager.getManager().handle(status, style); |
| } |
| } |
| |
| interface IMessageDialogWrapper { |
| default void openWarning(Shell shell, String title, String message) { |
| MessageDialog.openWarning(shell, title, message); |
| } |
| } |
| } |