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/*
@VaadinApache2LicenseForJavaFiles@
*/
package com.vaadin.ui;
import java.util.Map;
import com.vaadin.terminal.Page;
import com.vaadin.terminal.PaintException;
import com.vaadin.terminal.PaintTarget;
import com.vaadin.terminal.Resource;
import com.vaadin.terminal.Vaadin6Component;
/**
* Link is used to create external or internal URL links.
*
* @author Vaadin Ltd.
* @since 3.0
*/
@SuppressWarnings("serial")
public class Link extends AbstractComponent implements Vaadin6Component {
/* Target window border type constant: No window border */
public static final int TARGET_BORDER_NONE = Page.BORDER_NONE;
/* Target window border type constant: Minimal window border */
public static final int TARGET_BORDER_MINIMAL = Page.BORDER_MINIMAL;
/* Target window border type constant: Default window border */
public static final int TARGET_BORDER_DEFAULT = Page.BORDER_DEFAULT;
private Resource resource = null;
private String targetName;
private int targetBorder = TARGET_BORDER_DEFAULT;
private int targetWidth = -1;
private int targetHeight = -1;
/**
* Creates a new link.
*/
public Link() {
}
/**
* Creates a new instance of Link.
*
* @param caption
* @param resource
*/
public Link(String caption, Resource resource) {
setCaption(caption);
this.resource = resource;
}
/**
* Creates a new instance of Link that opens a new window.
*
*
* @param caption
* the Link text.
* @param targetName
* the name of the target window where the link opens to. Empty
* name of null implies that the target is opened to the window
* containing the link.
* @param width
* the Width of the target window.
* @param height
* the Height of the target window.
* @param border
* the Border style of the target window.
*
*/
public Link(String caption, Resource resource, String targetName,
int width, int height, int border) {
setCaption(caption);
this.resource = resource;
setTargetName(targetName);
setTargetWidth(width);
setTargetHeight(height);
setTargetBorder(border);
}
/**
* Paints the content of this component.
*
* @param target
* the Paint Event.
* @throws PaintException
* if the paint operation failed.
*/
@Override
public void paintContent(PaintTarget target) throws PaintException {
if (resource != null) {
target.addAttribute("src", resource);
} else {
return;
}
// Target window name
final String name = getTargetName();
if (name != null && name.length() > 0) {
target.addAttribute("name", name);
}
// Target window size
if (getTargetWidth() >= 0) {
target.addAttribute("targetWidth", getTargetWidth());
}
if (getTargetHeight() >= 0) {
target.addAttribute("targetHeight", getTargetHeight());
}
// Target window border
switch (getTargetBorder()) {
case TARGET_BORDER_MINIMAL:
target.addAttribute("border", "minimal");
break;
case TARGET_BORDER_NONE:
target.addAttribute("border", "none");
break;
}
}
/**
* Returns the target window border.
*
* @return the target window border.
*/
public int getTargetBorder() {
return targetBorder;
}
/**
* Returns the target window height or -1 if not set.
*
* @return the target window height.
*/
public int getTargetHeight() {
return targetHeight < 0 ? -1 : targetHeight;
}
/**
* Returns the target window name. Empty name of null implies that the
* target is opened to the window containing the link.
*
* @return the target window name.
*/
public String getTargetName() {
return targetName;
}
/**
* Returns the target window width or -1 if not set.
*
* @return the target window width.
*/
public int getTargetWidth() {
return targetWidth < 0 ? -1 : targetWidth;
}
/**
* Sets the border of the target window.
*
* @param targetBorder
* the targetBorder to set.
*/
public void setTargetBorder(int targetBorder) {
if (targetBorder == TARGET_BORDER_DEFAULT
|| targetBorder == TARGET_BORDER_MINIMAL
|| targetBorder == TARGET_BORDER_NONE) {
this.targetBorder = targetBorder;
requestRepaint();
}
}
/**
* Sets the target window height.
*
* @param targetHeight
* the targetHeight to set.
*/
public void setTargetHeight(int targetHeight) {
this.targetHeight = targetHeight;
requestRepaint();
}
/**
* Sets the target window name.
*
* @param targetName
* the targetName to set.
*/
public void setTargetName(String targetName) {
this.targetName = targetName;
requestRepaint();
}
/**
* Sets the target window width.
*
* @param targetWidth
* the targetWidth to set.
*/
public void setTargetWidth(int targetWidth) {
this.targetWidth = targetWidth;
requestRepaint();
}
/**
* Returns the resource this link opens.
*
* @return the Resource.
*/
public Resource getResource() {
return resource;
}
/**
* Sets the resource this link opens.
*
* @param resource
* the resource to set.
*/
public void setResource(Resource resource) {
this.resource = resource;
requestRepaint();
}
@Override
public void changeVariables(Object source, Map<String, Object> variables) {
// TODO Remove once Vaadin6Component is no longer implemented
}
}
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