| /******************************************************************************* |
| * Copyright (c) 2013, 2020 Dirk Fauth and others. |
| * |
| * This program and the accompanying materials are made |
| * available under the terms of the Eclipse Public License 2.0 |
| * which is available at https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Dirk Fauth <dirk.fauth@googlemail.com> - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.nebula.widgets.nattable.edit.gui; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.jface.dialogs.Dialog; |
| import org.eclipse.jface.dialogs.IDialogSettings; |
| import org.eclipse.nebula.widgets.nattable.Messages; |
| import org.eclipse.nebula.widgets.nattable.config.CellConfigAttributes; |
| import org.eclipse.nebula.widgets.nattable.config.IConfigRegistry; |
| import org.eclipse.nebula.widgets.nattable.data.convert.ConversionFailedException; |
| import org.eclipse.nebula.widgets.nattable.data.convert.IDisplayConverter; |
| import org.eclipse.nebula.widgets.nattable.data.validate.IDataValidator; |
| import org.eclipse.nebula.widgets.nattable.data.validate.ValidationFailedException; |
| import org.eclipse.nebula.widgets.nattable.edit.DialogEditHandler; |
| import org.eclipse.nebula.widgets.nattable.edit.EditConfigAttributes; |
| import org.eclipse.nebula.widgets.nattable.edit.EditConfigHelper; |
| import org.eclipse.nebula.widgets.nattable.edit.EditTypeEnum; |
| import org.eclipse.nebula.widgets.nattable.edit.ICellEditHandler; |
| import org.eclipse.nebula.widgets.nattable.edit.editor.ICellEditor; |
| import org.eclipse.nebula.widgets.nattable.edit.editor.IEditErrorHandler; |
| import org.eclipse.nebula.widgets.nattable.layer.cell.ILayerCell; |
| import org.eclipse.nebula.widgets.nattable.selection.SelectionLayer.MoveDirectionEnum; |
| import org.eclipse.nebula.widgets.nattable.style.DisplayMode; |
| import org.eclipse.nebula.widgets.nattable.widget.EditModeEnum; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Abstract implementation of a {@link ICellEditor} that is also a |
| * {@link ICellEditDialog}. By creating a {@link ICellEditor} based on this |
| * abstract implementation, you are able to create an editor that wraps a SWT or |
| * JFace dialog. As SWT and JFace dialogs does not extend the same base classes, |
| * the local instance for the wrapped dialog is of type object in here. In the |
| * concrete implementation the |
| * {@link AbstractDialogCellEditor#getDialogInstance()} should return the |
| * concrete dialog type that is wrapped. |
| * <p> |
| * By using this implementation, the {@link CellEditDialogFactory} will return |
| * the instance of this editor, after it was activated previously. |
| */ |
| public abstract class AbstractDialogCellEditor implements ICellEditor, ICellEditDialog { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(AbstractDialogCellEditor.class); |
| |
| /** |
| * The parent Composite, needed for the creation of the dialog. |
| */ |
| protected Composite parent; |
| /** |
| * The {@link Dialog} that should be used as a cell editor. |
| */ |
| protected Object dialog; |
| /** |
| * The cell whose editor should be activated. |
| */ |
| protected ILayerCell layerCell; |
| /** |
| * The {@link ICellEditHandler} that will be used on commit. |
| */ |
| protected DialogEditHandler editHandler = new DialogEditHandler(); |
| /** |
| * The {@link IDisplayConverter} that should be used to convert the input |
| * value to the canonical value and vice versa. |
| */ |
| protected IDisplayConverter displayConverter; |
| /** |
| * The {@link IDataValidator} that should be used to validate the input |
| * value prior committing. |
| */ |
| protected IDataValidator dataValidator; |
| /** |
| * The error handler that will be used to show conversion errors. |
| */ |
| protected IEditErrorHandler conversionEditErrorHandler; |
| /** |
| * The error handler that will be used to show validation errors. |
| */ |
| protected IEditErrorHandler validationEditErrorHandler; |
| /** |
| * The {@link IConfigRegistry} containing the configuration of the current |
| * NatTable instance. This is necessary because the editors in the current |
| * architecture are not aware of the NatTable instance they are running in. |
| */ |
| protected IConfigRegistry configRegistry; |
| /** |
| * Map that contains custom configurations for this {@link CellEditDialog}. |
| * We do not use the {@link IDialogSettings} provided by JFace, because they |
| * are used to store and load the settings in XML rather than overriding the |
| * behaviour. |
| */ |
| protected Map<String, Object> editDialogSettings; |
| |
| @Override |
| public EditTypeEnum getEditType() { |
| // by default the value selected in the wrapped dialog should simply be |
| // set to the data model on commit. |
| return EditTypeEnum.SET; |
| } |
| |
| @Override |
| public Object calculateValue(Object currentValue, Object processValue) { |
| // by default the value selected in the wrapped dialog should simply be |
| // set to the data model on commit. |
| return processValue; |
| } |
| |
| @Override |
| public abstract int open(); |
| |
| @Override |
| public Control activateCell(Composite parent, |
| Object originalCanonicalValue, EditModeEnum editMode, |
| ICellEditHandler editHandler, ILayerCell cell, |
| IConfigRegistry configRegistry) { |
| |
| this.parent = parent; |
| this.layerCell = cell; |
| this.configRegistry = configRegistry; |
| |
| final List<String> configLabels = cell.getConfigLabels(); |
| this.displayConverter = configRegistry.getConfigAttribute( |
| CellConfigAttributes.DISPLAY_CONVERTER, |
| DisplayMode.EDIT, |
| configLabels); |
| this.dataValidator = configRegistry.getConfigAttribute( |
| EditConfigAttributes.DATA_VALIDATOR, |
| DisplayMode.EDIT, |
| configLabels); |
| |
| this.conversionEditErrorHandler = EditConfigHelper.getEditErrorHandler( |
| configRegistry, |
| EditConfigAttributes.CONVERSION_ERROR_HANDLER, |
| configLabels); |
| this.validationEditErrorHandler = EditConfigHelper.getEditErrorHandler( |
| configRegistry, |
| EditConfigAttributes.VALIDATION_ERROR_HANDLER, |
| configLabels); |
| |
| this.dialog = createDialogInstance(); |
| |
| setCanonicalValue(originalCanonicalValue); |
| |
| // this method is only needed to initialize the dialog editor, there |
| // will be no control to return |
| return null; |
| } |
| |
| /** |
| * Will create the dialog instance that should be wrapped by this |
| * {@link AbstractDialogCellEditor}. Note that you always need to create and |
| * return a new instance because on commit or close the dialog will be |
| * closed, which disposes the shell of the dialog. Therefore the instance |
| * will not be usable after commit/close. |
| * |
| * @return The dialog instance that should be wrapped by this |
| * {@link AbstractDialogCellEditor} |
| */ |
| public abstract Object createDialogInstance(); |
| |
| /** |
| * @return The current dialog instance that is wrapped by this |
| * {@link AbstractDialogCellEditor} |
| */ |
| public abstract Object getDialogInstance(); |
| |
| @Override |
| public abstract Object getEditorValue(); |
| |
| @Override |
| public abstract void setEditorValue(Object value); |
| |
| @Override |
| public Object getCanonicalValue() { |
| return getCanonicalValue(this.conversionEditErrorHandler); |
| } |
| |
| @Override |
| public Object getCanonicalValue(IEditErrorHandler conversionErrorHandler) { |
| Object canonicalValue; |
| try { |
| if (this.displayConverter != null) { |
| // always do the conversion to check for valid entered data |
| canonicalValue = this.displayConverter.displayToCanonicalValue( |
| this.layerCell, this.configRegistry, getEditorValue()); |
| } else { |
| canonicalValue = getEditorValue(); |
| } |
| |
| // if the conversion succeeded, remove error rendering if exists |
| conversionErrorHandler.removeError(this); |
| } catch (ConversionFailedException e) { |
| // conversion failed |
| conversionErrorHandler.displayError(this, this.configRegistry, e); |
| throw e; |
| } catch (Exception e) { |
| // conversion failed |
| conversionErrorHandler.displayError(this, this.configRegistry, e); |
| throw new ConversionFailedException(e.getMessage(), e); |
| } |
| return canonicalValue; |
| } |
| |
| @Override |
| public void setCanonicalValue(Object canonicalValue) { |
| Object displayValue; |
| if (this.displayConverter != null) { |
| displayValue = this.displayConverter.canonicalToDisplayValue( |
| this.layerCell, this.configRegistry, canonicalValue); |
| } else { |
| displayValue = canonicalValue; |
| } |
| setEditorValue(displayValue); |
| } |
| |
| @Override |
| public boolean validateCanonicalValue(Object canonicalValue) { |
| return validateCanonicalValue(canonicalValue, |
| this.validationEditErrorHandler); |
| } |
| |
| @Override |
| public boolean validateCanonicalValue(Object canonicalValue, |
| IEditErrorHandler validationErrorHandler) { |
| // do the validation if a validator is registered |
| if (this.dataValidator != null) { |
| try { |
| boolean validationResult = this.dataValidator.validate( |
| this.layerCell, this.configRegistry, canonicalValue); |
| |
| // if the validation succeeded, remove error rendering if exists |
| if (validationResult) { |
| this.validationEditErrorHandler.removeError(this); |
| } else { |
| throw new ValidationFailedException( |
| Messages.getString("AbstractCellEditor.validationFailure")); //$NON-NLS-1$ |
| } |
| return validationResult; |
| } catch (Exception e) { |
| // validation failed |
| this.validationEditErrorHandler.displayError(this, this.configRegistry, e); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public boolean commit(MoveDirectionEnum direction) { |
| return commit(direction, true); |
| } |
| |
| @Override |
| public boolean commit(MoveDirectionEnum direction, boolean closeAfterCommit) { |
| return commit(direction, closeAfterCommit, false); |
| } |
| |
| @Override |
| public boolean commit(MoveDirectionEnum direction, boolean closeAfterCommit, boolean skipValidation) { |
| if (this.editHandler != null && this.dialog != null && !isClosed()) { |
| try { |
| // always do the conversion |
| Object canonicalValue = getCanonicalValue(); |
| if (skipValidation |
| || (!skipValidation && validateCanonicalValue(canonicalValue))) { |
| boolean committed = this.editHandler.commit(canonicalValue, direction); |
| |
| if (committed && closeAfterCommit) { |
| close(); |
| } |
| |
| return committed; |
| } |
| } catch (ConversionFailedException | ValidationFailedException e) { |
| // do nothing as exceptions caused by conversion/validation are |
| // handled already we just need this catch block for stopping |
| // the process if conversion failed with an exception |
| } catch (Exception e) { |
| // if another exception occured that wasn't thrown by us, it |
| // should at least be logged without killing the whole |
| // application |
| LOG.error("Error on updating cell value: {}", e.getLocalizedMessage(), e); //$NON-NLS-1$ |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public Object getCommittedValue() { |
| return this.editHandler.getCommittedValue(); |
| } |
| |
| @Override |
| public abstract void close(); |
| |
| @Override |
| public abstract boolean isClosed(); |
| |
| @Override |
| public Control getEditorControl() { |
| // as this editor wraps a dialog, there is no explicit editor control |
| return null; |
| } |
| |
| @Override |
| public Control createEditorControl(Composite parent) { |
| // as this editor wraps a dialog, there is no explicit editor control |
| return null; |
| } |
| |
| @Override |
| public boolean openInline(IConfigRegistry configRegistry, List<String> configLabels) { |
| return false; |
| } |
| |
| @Override |
| public boolean supportMultiEdit(IConfigRegistry configRegistry, List<String> configLabels) { |
| return EditConfigHelper.supportMultiEdit(configRegistry, configLabels); |
| } |
| |
| @Override |
| public boolean openMultiEditDialog() { |
| return true; |
| } |
| |
| @Override |
| public boolean openAdjacentEditor() { |
| // as editing with a dialog should only result in committing the value |
| // and |
| // then set the selection to the edited value, it doesn't make sense to |
| // open |
| // the adjacent editor. |
| return false; |
| } |
| |
| @Override |
| public boolean activateAtAnyPosition() { |
| return true; |
| } |
| |
| @Override |
| public boolean activateOnTraversal(IConfigRegistry configRegistry, List<String> configLabels) { |
| return EditConfigHelper.activateEditorOnTraversal(configRegistry, configLabels); |
| } |
| |
| @Override |
| public void addEditorControlListeners() { |
| // there is no need for special editor control listeners here |
| } |
| |
| @Override |
| public void removeEditorControlListeners() { |
| // there is no need for special editor control listeners here |
| } |
| |
| @Override |
| public Rectangle calculateControlBounds(Rectangle cellBounds) { |
| return cellBounds; |
| } |
| |
| @Override |
| public void setDialogSettings(Map<String, Object> editDialogSettings) { |
| this.editDialogSettings = editDialogSettings; |
| } |
| |
| @Override |
| public int getColumnIndex() { |
| return this.layerCell.getColumnIndex(); |
| } |
| |
| @Override |
| public int getRowIndex() { |
| return this.layerCell.getRowIndex(); |
| } |
| |
| @Override |
| public int getColumnPosition() { |
| return this.layerCell.getColumnPosition(); |
| } |
| |
| @Override |
| public int getRowPosition() { |
| return this.layerCell.getRowPosition(); |
| } |
| } |