X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;ds=sidebyside;f=swt%2Forg.argeo.cms.jcr.ui%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2Fjcr%2FJcrUiUtils.java;fp=swt%2Forg.argeo.cms.jcr.ui%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2Fjcr%2FJcrUiUtils.java;h=420154b83abf5b2f21d643b5063274252da1c287;hb=777e96758c36e1cfdecedb8749e384f6fe124a06;hp=0000000000000000000000000000000000000000;hpb=d2760f3b59a623a4428bca53bc395433c7fde845;p=gpl%2Fargeo-jcr.git diff --git a/swt/org.argeo.cms.jcr.ui/src/org/argeo/eclipse/ui/jcr/JcrUiUtils.java b/swt/org.argeo.cms.jcr.ui/src/org/argeo/eclipse/ui/jcr/JcrUiUtils.java new file mode 100644 index 0000000..420154b --- /dev/null +++ b/swt/org.argeo.cms.jcr.ui/src/org/argeo/eclipse/ui/jcr/JcrUiUtils.java @@ -0,0 +1,149 @@ +package org.argeo.eclipse.ui.jcr; + +import java.util.Calendar; + +import javax.jcr.Node; +import javax.jcr.PropertyType; +import javax.jcr.RepositoryException; + +import org.argeo.eclipse.ui.EclipseUiException; +import org.argeo.eclipse.ui.jcr.lists.NodeViewerComparator; +import org.argeo.eclipse.ui.jcr.lists.RowViewerComparator; +import org.eclipse.jface.viewers.TableViewer; +import org.eclipse.swt.SWT; +import org.eclipse.swt.events.SelectionAdapter; +import org.eclipse.swt.events.SelectionEvent; +import org.eclipse.swt.widgets.Table; + +/** Utility methods to simplify UI development using SWT (or RWT), jface and JCR. */ +public class JcrUiUtils { + + /** + * Centralizes management of updating property value. Among other to avoid + * infinite loop when the new value is the same as the ones that is already + * stored in JCR. + * + * @return true if the value as changed + */ + public static boolean setJcrProperty(Node node, String propName, + int propertyType, Object value) { + try { + switch (propertyType) { + case PropertyType.STRING: + if ("".equals((String) value) + && (!node.hasProperty(propName) || node + .hasProperty(propName) + && "".equals(node.getProperty(propName) + .getString()))) + // workaround the fact that the Text widget value cannot be + // set to null + return false; + else if (node.hasProperty(propName) + && node.getProperty(propName).getString() + .equals((String) value)) + // nothing changed yet + return false; + else { + node.setProperty(propName, (String) value); + return true; + } + case PropertyType.BOOLEAN: + if (node.hasProperty(propName) + && node.getProperty(propName).getBoolean() == (Boolean) value) + // nothing changed yet + return false; + else { + node.setProperty(propName, (Boolean) value); + return true; + } + case PropertyType.DATE: + if (node.hasProperty(propName) + && node.getProperty(propName).getDate() + .equals((Calendar) value)) + // nothing changed yet + return false; + else { + node.setProperty(propName, (Calendar) value); + return true; + } + case PropertyType.LONG: + Long lgValue = (Long) value; + + if (lgValue == null) + lgValue = 0L; + + if (node.hasProperty(propName) + && node.getProperty(propName).getLong() == lgValue) + // nothing changed yet + return false; + else { + node.setProperty(propName, lgValue); + return true; + } + + default: + throw new EclipseUiException("Unimplemented property save"); + } + } catch (RepositoryException re) { + throw new EclipseUiException("Unexpected error while setting property", + re); + } + } + + /** + * Creates a new selection adapter in order to provide sorting abitily on a + * SWT Table that display a row list + **/ + public static SelectionAdapter getRowSelectionAdapter(final int index, + final int propertyType, final String selectorName, + final String propertyName, final RowViewerComparator comparator, + final TableViewer viewer) { + SelectionAdapter selectionAdapter = new SelectionAdapter() { + private static final long serialVersionUID = -5738918304901437720L; + + @Override + public void widgetSelected(SelectionEvent e) { + Table table = viewer.getTable(); + comparator.setColumn(propertyType, selectorName, propertyName); + int dir = table.getSortDirection(); + if (table.getSortColumn() == table.getColumn(index)) { + dir = dir == SWT.UP ? SWT.DOWN : SWT.UP; + } else { + dir = SWT.DOWN; + } + table.setSortDirection(dir); + table.setSortColumn(table.getColumn(index)); + viewer.refresh(); + } + }; + return selectionAdapter; + } + + /** + * Creates a new selection adapter in order to provide sorting abitily on a + * swt table that display a row list + **/ + public static SelectionAdapter getNodeSelectionAdapter(final int index, + final int propertyType, final String propertyName, + final NodeViewerComparator comparator, final TableViewer viewer) { + SelectionAdapter selectionAdapter = new SelectionAdapter() { + private static final long serialVersionUID = -1683220869195484625L; + + @Override + public void widgetSelected(SelectionEvent e) { + Table table = viewer.getTable(); + comparator.setColumn(propertyType, propertyName); + int dir = table.getSortDirection(); + if (table.getSortColumn() == table.getColumn(index)) { + dir = dir == SWT.UP ? SWT.DOWN : SWT.UP; + } else { + dir = SWT.DOWN; + } + table.setSortDirection(dir); + table.setSortColumn(table.getColumn(index)); + viewer.refresh(); + } + }; + return selectionAdapter; + } +}