+++ /dev/null
-package org.argeo.cms.ui.util;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.MalformedURLException;
-import java.net.URL;
-
-import javax.jcr.Node;
-import javax.jcr.RepositoryException;
-
-import org.argeo.api.cms.CmsStyle;
-import org.argeo.api.cms.CmsLog;
-import org.argeo.cms.auth.CurrentUser;
-import org.argeo.cms.jcr.CmsJcrUtils;
-import org.argeo.cms.swt.CmsSwtUtils;
-import org.argeo.cms.ui.CmsUiProvider;
-import org.argeo.jcr.JcrException;
-import org.eclipse.rap.rwt.RWT;
-import org.eclipse.rap.rwt.service.ResourceManager;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.events.MouseListener;
-import org.eclipse.swt.graphics.ImageData;
-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.osgi.framework.BundleContext;
-
-/** A link to an internal or external location. */
-public class CmsLink implements CmsUiProvider {
- private final static CmsLog log = CmsLog.getLog(CmsLink.class);
- private BundleContext bundleContext;
-
- private String label;
- private String style;
- private String target;
- private String image;
- private boolean openNew = false;
- private MouseListener mouseListener;
-
- private int horizontalAlignment = SWT.CENTER;
- private int verticalAlignment = SWT.CENTER;
-
- private String loggedInLabel = null;
- private String loggedInTarget = null;
-
- // internal
- // private Boolean isUrl = false;
- private Integer imageWidth, imageHeight;
-
- public CmsLink() {
- super();
- }
-
- public CmsLink(String label, String target) {
- this(label, target, (String) null);
- }
-
- public CmsLink(String label, String target, CmsStyle style) {
- this(label, target, style != null ? style.style() : null);
- }
-
- public CmsLink(String label, String target, String style) {
- super();
- this.label = label;
- this.target = target;
- this.style = style;
- init();
- }
-
- public void init() {
- if (image != null) {
- ImageData image = loadImage();
- if (imageHeight == null && imageWidth == null) {
- imageWidth = image.width;
- imageHeight = image.height;
- } else if (imageHeight == null) {
- imageHeight = (imageWidth * image.height) / image.width;
- } else if (imageWidth == null) {
- imageWidth = (imageHeight * image.width) / image.height;
- }
- }
- }
-
- /** @return {@link Composite} with a single {@link Label} child. */
- @Override
- public Control createUi(final Composite parent, Node context) {
-// if (image != null && (imageWidth == null || imageHeight == null)) {
-// throw new CmsException("Image is not properly configured."
-// + " Make sure bundleContext property is set and init() method has been called.");
-// }
-
- Composite comp = new Composite(parent, SWT.NONE);
- comp.setLayout(CmsSwtUtils.noSpaceGridLayout());
-
- Label link = new Label(comp, SWT.NONE);
- CmsSwtUtils.markup(link);
- GridData layoutData = new GridData(horizontalAlignment, verticalAlignment, false, false);
- if (image != null) {
- if (imageHeight != null)
- layoutData.heightHint = imageHeight;
- if (label == null)
- if (imageWidth != null)
- layoutData.widthHint = imageWidth;
- }
-
- link.setLayoutData(layoutData);
- CmsSwtUtils.style(comp, style != null ? style : getDefaultStyle());
- CmsSwtUtils.style(link, style != null ? style : getDefaultStyle());
-
- // label
- StringBuilder labelText = new StringBuilder();
- if (loggedInTarget != null && isLoggedIn()) {
- labelText.append("<a style='color:inherit;text-decoration:inherit;' href=\"");
- if (loggedInTarget.equals("")) {
- try {
- Node homeNode = CmsJcrUtils.getUserHome(context.getSession());
- String homePath = homeNode.getPath();
- labelText.append("/#" + homePath);
- } catch (RepositoryException e) {
- throw new JcrException("Cannot get home path", e);
- }
- } else {
- labelText.append(loggedInTarget);
- }
- labelText.append("\">");
- } else if (target != null) {
- labelText.append("<a style='color:inherit;text-decoration:inherit;' href='");
- labelText.append(target).append("'");
- if (openNew) {
- labelText.append(" target='_blank'");
- }
- labelText.append(">");
- }
- if (image != null) {
- registerImageIfNeeded();
- String imageLocation = RWT.getResourceManager().getLocation(image);
- labelText.append("<img");
- if (imageWidth != null)
- labelText.append(" width='").append(imageWidth).append('\'');
- if (imageHeight != null)
- labelText.append(" height='").append(imageHeight).append('\'');
- labelText.append(" src=\"").append(imageLocation).append("\"/>");
-
- }
-
- if (loggedInLabel != null && isLoggedIn()) {
- labelText.append(' ').append(loggedInLabel);
- } else if (label != null) {
- labelText.append(' ').append(label);
- }
-
- if ((loggedInTarget != null && isLoggedIn()) || target != null)
- labelText.append("</a>");
-
- link.setText(labelText.toString());
-
- if (mouseListener != null)
- link.addMouseListener(mouseListener);
-
- return comp;
- }
-
- private void registerImageIfNeeded() {
- ResourceManager resourceManager = RWT.getResourceManager();
- if (!resourceManager.isRegistered(image)) {
- URL res = getImageUrl();
- try (InputStream inputStream = res.openStream()) {
- resourceManager.register(image, inputStream);
- if (log.isTraceEnabled())
- log.trace("Registered image " + image);
- } catch (IOException e) {
- throw new RuntimeException("Cannot load image " + image, e);
- }
- }
- }
-
- private ImageData loadImage() {
- URL url = getImageUrl();
- ImageData result = null;
- try (InputStream inputStream = url.openStream()) {
- result = new ImageData(inputStream);
- if (log.isTraceEnabled())
- log.trace("Loaded image " + image);
- } catch (IOException e) {
- throw new RuntimeException("Cannot load image " + image, e);
- }
- return result;
- }
-
- private URL getImageUrl() {
- URL url;
- try {
- // pure URL
- url = new URL(image);
- } catch (MalformedURLException e1) {
- url = bundleContext.getBundle().getResource(image);
- }
-
- if (url == null)
- throw new IllegalStateException("No image " + image + " available.");
-
- return url;
- }
-
- public void setBundleContext(BundleContext bundleContext) {
- this.bundleContext = bundleContext;
- }
-
- public void setLabel(String label) {
- this.label = label;
- }
-
- public void setStyle(String style) {
- this.style = style;
- }
-
- /** @deprecated Use {@link #setStyle(String)} instead. */
- @Deprecated
- public void setCustom(String custom) {
- this.style = custom;
- }
-
- public void setTarget(String target) {
- this.target = target;
- // try {
- // new URL(target);
- // isUrl = true;
- // } catch (MalformedURLException e1) {
- // isUrl = false;
- // }
- }
-
- public void setImage(String image) {
- this.image = image;
- }
-
- public void setLoggedInLabel(String loggedInLabel) {
- this.loggedInLabel = loggedInLabel;
- }
-
- public void setLoggedInTarget(String loggedInTarget) {
- this.loggedInTarget = loggedInTarget;
- }
-
- public void setMouseListener(MouseListener mouseListener) {
- this.mouseListener = mouseListener;
- }
-
- public void setvAlign(String vAlign) {
- if ("bottom".equals(vAlign)) {
- verticalAlignment = SWT.BOTTOM;
- } else if ("top".equals(vAlign)) {
- verticalAlignment = SWT.TOP;
- } else if ("center".equals(vAlign)) {
- verticalAlignment = SWT.CENTER;
- } else {
- throw new IllegalArgumentException(
- "Unsupported vertical alignment " + vAlign + " (must be: top, bottom or center)");
- }
- }
-
- protected boolean isLoggedIn() {
- return !CurrentUser.isAnonymous();
- }
-
- public void setImageWidth(Integer imageWidth) {
- this.imageWidth = imageWidth;
- }
-
- public void setImageHeight(Integer imageHeight) {
- this.imageHeight = imageHeight;
- }
-
- public void setOpenNew(boolean openNew) {
- this.openNew = openNew;
- }
-
- protected String getDefaultStyle() {
- return SimpleStyle.link.name();
- }
-}
projects / lgpl / argeo-commons.git / blobdiff