/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.waveprotocol.wave.client.doodad.attachment.render;
import org.waveprotocol.wave.client.doodad.attachment.ImageThumbnail;
import org.waveprotocol.wave.client.editor.content.CMutableDocument;
import org.waveprotocol.wave.client.editor.content.ContentElement;
import org.waveprotocol.wave.client.editor.content.ContentNode;
import org.waveprotocol.wave.client.editor.content.misc.Caption;
import org.waveprotocol.wave.media.model.Attachment;
import org.waveprotocol.wave.model.document.util.DocHelper;
import org.waveprotocol.wave.model.document.util.Point;
import org.waveprotocol.wave.model.document.util.Property;
import org.waveprotocol.wave.model.document.util.XmlStringBuilderDoc;
/**
* A per-instance wrapper to provide an interface over image thumbnail elements
*
* TODO(danilatos): Find a nice way to get rid of this?
*
* @author danilatos@google.com (Daniel Danilatos)
*/
public class ImageThumbnailWrapper {
/**
* Property for storing an instance of this wrapper on a thumbnail element
*/
static final Property<ImageThumbnailWrapper> PROPERTY = Property.immutable("wrapper");
/** Element being wrapped. */
private final ContentElement element;
/** Attachment. */
private Attachment attachment;
/**
* @param element the element being wrapped
*/
public ImageThumbnailWrapper(ContentElement element) {
this.element = element;
}
/**
* Gets the wrapper for an element, if it has one.
*
* @return wrapper for {@code e}.
*/
public static ImageThumbnailWrapper of(ContentElement e) {
return e.getProperty(ImageThumbnailWrapper.PROPERTY);
}
void setAttachment(Attachment a) {
attachment = a;
}
/**
* @return attachment of the thumbnail.
*/
public Attachment getAttachment() {
return attachment;
}
/**
* Sets the attachment id of this doodad.
*/
public void setAttachmentId(String id) {
element.getMutableDoc().setElementAttribute(element, ImageThumbnail.ATTACHMENT_ATTR, id);
}
/**
* Sets the caption text of this doodad.
*/
public void setCaptionText(String text) {
CMutableDocument doc = element.getMutableDoc();
ContentElement caption = DocHelper.getElementWithTagName(doc, Caption.TAGNAME, element);
if (caption != null) {
doc.emptyElement(caption);
doc.insertText(Point.<ContentNode> end(caption), text);
}
}
/**
* Gets the text of the image caption
*/
public String getCaptionText() {
CMutableDocument doc = element.getMutableDoc();
return DocHelper.getText(doc, doc, doc.getLocation(element),
doc.getLocation(Point.end((ContentNode) element)));
}
/**
* Deletes this doodad from its document.
*/
public void delete() {
element.getMutableDoc().deleteNode(element);
}
/**
* Renders this wrapper's element into a string builder.
*
* @param builder builder into which this wrapper's element is appended,
* or null if this wrapper should produce a builder
* @return resulting XML builder.
*/
public XmlStringBuilderDoc<? super ContentElement, ContentElement, ?>
appendInto(XmlStringBuilderDoc<? super ContentElement, ContentElement, ?> builder) {
if (builder == null) {
builder = XmlStringBuilderDoc.createEmpty(element.getMutableDoc());
}
builder.appendNode(element);
return builder;
}
public ContentElement getElement() {
return element;
}
}