--- /dev/null
+package org.argeo.cms.util;
+
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+import javax.jcr.Item;
+import javax.jcr.Node;
+import javax.jcr.Property;
+import javax.jcr.RepositoryException;
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.cms.CmsConstants;
+import org.argeo.cms.CmsException;
+import org.argeo.cms.CmsView;
+import org.argeo.cms.auth.AuthConstants;
+import org.argeo.eclipse.ui.specific.UiContext;
+import org.argeo.jcr.ArgeoJcrConstants;
+import org.argeo.jcr.JcrUtils;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.service.ResourceManager;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.ImageData;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.layout.RowData;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.swt.widgets.Widget;
+
+/** Static utilities for the CMS framework. */
+public class CmsUtils implements CmsConstants {
+ private final static Log log = LogFactory.getLog(CmsUtils.class);
+
+ /**
+ * The CMS view related to this display, or null if none is available from
+ * this call.
+ */
+ public static CmsView getCmsView() {
+ return UiContext.getData(CmsView.KEY);
+ }
+
+ public static StringBuilder getServerBaseUrl(HttpServletRequest request) {
+ try {
+ URL url = new URL(request.getRequestURL().toString());
+ StringBuilder buf = new StringBuilder();
+ buf.append(url.getProtocol()).append("://").append(url.getHost());
+ if (url.getPort() != -1)
+ buf.append(':').append(url.getPort());
+ return buf;
+ } catch (MalformedURLException e) {
+ throw new CmsException("Cannot extract server base URL from " + request.getRequestURL(), e);
+ }
+ }
+//
+ public static String getDataUrl(Node node, HttpServletRequest request) throws RepositoryException {
+ try {
+ StringBuilder buf = getServerBaseUrl(request);
+ buf.append(getDataPath(node));
+ return new URL(buf.toString()).toString();
+ } catch (MalformedURLException e) {
+ throw new CmsException("Cannot build data URL for " + node, e);
+ }
+ }
+// FIXME
+ private final static String PATH_DATA = "/data";
+ private final static String WEBDAV_PUBLIC = PATH_DATA + "/public";
+ private final static String WEBDAV_PRIVATE = PATH_DATA + "/files";
+ public static String getDataPath(Node node) throws RepositoryException {
+ assert node != null;
+ String userId = node.getSession().getUserID();
+ if (log.isTraceEnabled())
+ log.trace(userId + " : " + node.getPath());
+ StringBuilder buf = new StringBuilder();
+ boolean isAnonymous = userId.equalsIgnoreCase(AuthConstants.ROLE_ANONYMOUS);
+ if (isAnonymous)
+ buf.append(WEBDAV_PUBLIC);
+ else
+ buf.append(WEBDAV_PRIVATE);
+ // TODO convey repo alias vie repository properties
+ return buf.append('/').append(ArgeoJcrConstants.ALIAS_NODE).append('/').append(node.getSession().getWorkspace().getName())
+ .append(node.getPath()).toString();
+ }
+//
+// public static String getCanonicalUrl(Node node, HttpServletRequest request) throws RepositoryException {
+// try {
+// StringBuilder buf = getServerBaseUrl(request);
+// buf.append('/').append('!').append(node.getPath());
+// return new URL(buf.toString()).toString();
+// } catch (MalformedURLException e) {
+// throw new CmsException("Cannot build data URL for " + node, e);
+// }
+// // return request.getRequestURL().append('!').append(node.getPath())
+// // .toString();
+// }
+
+ /** @deprecated Use rowData16px() instead. GridData should not be reused. */
+ @Deprecated
+ public static RowData ROW_DATA_16px = new RowData(16, 16);
+
+ public static GridLayout noSpaceGridLayout() {
+ return noSpaceGridLayout(new GridLayout());
+ }
+
+ public static GridLayout noSpaceGridLayout(GridLayout layout) {
+ layout.horizontalSpacing = 0;
+ layout.verticalSpacing = 0;
+ layout.marginWidth = 0;
+ layout.marginHeight = 0;
+ return layout;
+ }
+
+ //
+ // GRID DATA
+ //
+ public static GridData fillWidth() {
+ return grabWidth(SWT.FILL, SWT.FILL);
+ }
+
+ public static GridData fillAll() {
+ return new GridData(SWT.FILL, SWT.FILL, true, true);
+ }
+
+ public static GridData grabWidth(int horizontalAlignment, int verticalAlignment) {
+ return new GridData(horizontalAlignment, horizontalAlignment, true, false);
+ }
+
+ public static RowData rowData16px() {
+ return new RowData(16, 16);
+ }
+
+ /** Style widget */
+ public static void style(Widget widget, String style) {
+ widget.setData(CmsConstants.STYLE, style);
+ }
+
+ /** Enable markups on widget */
+ public static void markup(Widget widget) {
+ widget.setData(CmsConstants.MARKUP, true);
+ }
+
+ public static void setItemHeight(Table table, int height) {
+ table.setData(CmsConstants.ITEM_HEIGHT, height);
+ }
+
+ /** @return the path or null if not instrumented */
+ public static String getDataPath(Widget widget) {
+ // JCR item
+ Object data = widget.getData();
+ if (data != null && data instanceof Item) {
+ try {
+ return ((Item) data).getPath();
+ } catch (RepositoryException e) {
+ throw new CmsException("Cannot find data path of " + data + " for " + widget);
+ }
+ }
+
+ // JCR path
+ data = widget.getData(Property.JCR_PATH);
+ if (data != null)
+ return data.toString();
+
+ return null;
+ }
+
+ /** Dispose all children of a Composite */
+ public static void clear(Composite composite) {
+ for (Control child : composite.getChildren())
+ child.dispose();
+ }
+
+ //
+ // JCR
+ //
+ public static Node getOrAddEmptyFile(Node parent, Enum<?> child) throws RepositoryException {
+ if (has(parent, child))
+ return child(parent, child);
+ return JcrUtils.copyBytesAsFile(parent, child.name(), new byte[0]);
+ }
+
+ public static Node child(Node parent, Enum<?> en) throws RepositoryException {
+ return parent.getNode(en.name());
+ }
+
+ public static Boolean has(Node parent, Enum<?> en) throws RepositoryException {
+ return parent.hasNode(en.name());
+ }
+
+ public static Node getOrAdd(Node parent, Enum<?> en) throws RepositoryException {
+ return getOrAdd(parent, en, null);
+ }
+
+ public static Node getOrAdd(Node parent, Enum<?> en, String primaryType) throws RepositoryException {
+ if (has(parent, en))
+ return child(parent, en);
+ else if (primaryType == null)
+ return parent.addNode(en.name());
+ else
+ return parent.addNode(en.name(), primaryType);
+ }
+
+ // IMAGES
+ public static String img(String src, String width, String height) {
+ return imgBuilder(src, width, height).append("/>").toString();
+ }
+
+ public static String img(String src, Point size) {
+ return img(src, Integer.toString(size.x), Integer.toString(size.y));
+ }
+
+ public static StringBuilder imgBuilder(String src, String width, String height) {
+ return new StringBuilder(64).append("<img width='").append(width).append("' height='").append(height)
+ .append("' src='").append(src).append("'");
+ }
+
+ public static String noImg(Point size) {
+ ResourceManager rm = RWT.getResourceManager();
+ return CmsUtils.img(rm.getLocation(NO_IMAGE), size);
+ }
+
+ public static String noImg() {
+ return noImg(NO_IMAGE_SIZE);
+ }
+
+ public static Image noImage(Point size) {
+ ResourceManager rm = RWT.getResourceManager();
+ InputStream in = null;
+ try {
+ in = rm.getRegisteredContent(NO_IMAGE);
+ ImageData id = new ImageData(in);
+ ImageData scaled = id.scaledTo(size.x, size.y);
+ Image image = new Image(Display.getCurrent(), scaled);
+ return image;
+ } finally {
+ IOUtils.closeQuietly(in);
+ }
+ }
+
+ private CmsUtils() {
+ }
+}