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Echo2 bundled with Echo2_Extras, Echo2_FileTransfer and echopointing and various improvements/bugfixes
/*
* This file is part of the Echo Point Project. This project is a collection
* of Components that have extended the Echo Web Application Framework.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package echopointng.ui.util;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
import nextapp.echo2.app.Component;
import nextapp.echo2.app.update.ServerComponentUpdate;
import nextapp.echo2.webcontainer.ContainerInstance;
import nextapp.echo2.webcontainer.PartialUpdateManager;
import nextapp.echo2.webcontainer.PartialUpdateParticipant;
import nextapp.echo2.webcontainer.RenderContext;
import nextapp.echo2.webrender.servermessage.DomUpdate;
import echopointng.able.Borderable;
import echopointng.able.Heightable;
import echopointng.able.Insetable;
import echopointng.able.MouseCursorable;
import echopointng.able.Positionable;
import echopointng.able.Scrollable;
import echopointng.able.Widthable;
/**
* AblePartialUpdater is a PartialUpdateParticipant
* that can handle the basic echopoint.able.* interfaces
*/
public class AblePartialUpdater implements PartialUpdateParticipant {
private static Set handledPropertyNames;
private static Map handlers;
static {
handledPropertyNames = new HashSet();
handlers = new HashMap();
initHandler(Borderable.PROPERTY_BORDER);
initHandler(Heightable.PROPERTY_HEIGHT);
initHandler(Insetable.PROPERTY_INSETS);
initHandler(Insetable.PROPERTY_OUTSETS);
initHandler(MouseCursorable.PROPERTY_MOUSE_CURSOR);
initHandler(MouseCursorable.PROPERTY_MOUSE_CURSOR_URI);
initHandler(Positionable.PROPERTY_BOTTOM);
initHandler(Positionable.PROPERTY_LEFT);
initHandler(Positionable.PROPERTY_POSITION);
initHandler(Positionable.PROPERTY_RIGHT);
initHandler(Positionable.PROPERTY_TOP);
initHandler(Positionable.PROPERTY_Z_INDEX);
initHandler(Widthable.PROPERTY_WIDTH);
initHandler(Scrollable.PROPERTY_SCROLL_BAR_BASE_COLOR);
initHandler(Scrollable.PROPERTY_SCROLL_BAR_POLICY);
initHandler(Scrollable.PROPERTY_SCROLL_BAR_PROPERTIES);
}
private static void initHandler(String propertyName) {
handledPropertyNames.add(propertyName);
handlers.put(propertyName, new AblePartialUpdater(propertyName));
}
private String targetPropertyName;
/**
* Constructs a AblePartialUpdater that handles the specified
* property name.
*
* @param targetPropertyName -
* the name of the property to handle
*/
public AblePartialUpdater(String targetPropertyName) {
this.targetPropertyName = targetPropertyName;
}
/**
* This creates a set of AblePartialUpdater's and adds them
* to the PartialUpdateManager for the particular able
* properties.
*
* @param partialUpdateManager -
* the PartialUpdateManager to add a AblePartialUpdater's to
*/
public static void addToUpdateManager(PartialUpdateManager partialUpdateManager) {
for (Iterator iter = handledPropertyNames.iterator(); iter.hasNext();) {
String propertyName = (String) iter.next();
partialUpdateManager.add(propertyName, (PartialUpdateParticipant) handlers.get(propertyName));
}
}
/**
* @see nextapp.echo2.webcontainer.PartialUpdateParticipant#canRenderProperty(nextapp.echo2.webcontainer.RenderContext,
* nextapp.echo2.app.update.ServerComponentUpdate)
*/
public boolean canRenderProperty(RenderContext rc, ServerComponentUpdate update) {
String[] propertyNames = update.getUpdatedPropertyNames();
for (int i = 0; i < propertyNames.length; i++) {
if (propertyNames[i].equals(targetPropertyName)) {
return true;
}
}
return false;
}
/**
* @see nextapp.echo2.webcontainer.PartialUpdateParticipant#renderProperty(
* nextapp.echo2.webcontainer.RenderContext,
* nextapp.echo2.app.update.ServerComponentUpdate)
*/
public void renderProperty(RenderContext rc, ServerComponentUpdate update) {
Component component = update.getParent();
String elementId = ContainerInstance.getElementId(component);
String propertyNames[] = update.getUpdatedPropertyNames();
for (int i = 0; i < propertyNames.length; i++) {
String propertyName = propertyNames[i];
if (propertyName.equals(targetPropertyName)) {
Object value = update.getParent().getRenderProperty(propertyName);
if (value == null) {
renderNullUpdate(rc, elementId, component, propertyName);
} else {
renderUpdatesViaCssStyle(rc, elementId, component, propertyName);
}
}
}
}
private void removeBorderStyles(RenderContext rc, String elementId) {
DomUpdate.renderStyleUpdate(rc.getServerMessage(), elementId, "borderWidth", "");
DomUpdate.renderStyleUpdate(rc.getServerMessage(), elementId, "borderStyle", "");
DomUpdate.renderStyleUpdate(rc.getServerMessage(), elementId, "borderColor", "");
}
/**
* Called to render updates when the value has changed to null.
*/
private void renderNullUpdate(RenderContext rc, String elementId, Component component, String propertyName) {
if (component instanceof Borderable && propertyName.equals(Borderable.PROPERTY_BORDER)) {
// special border support
removeBorderStyles(rc, elementId);
//====================================================
//===
} else if (component instanceof Insetable) {
if (propertyName.equals(Insetable.PROPERTY_INSETS)) {
DomUpdate.renderStyleUpdate(rc.getServerMessage(), elementId, "padding", "");
}
if (propertyName.equals(Insetable.PROPERTY_OUTSETS)) {
DomUpdate.renderStyleUpdate(rc.getServerMessage(), elementId, "margin", "");
}
//====================================================
//===
} else if (component instanceof MouseCursorable) {
DomUpdate.renderStyleUpdate(rc.getServerMessage(), elementId, "cursor", "");
renderUpdatesViaCssStyle(rc,elementId,component,propertyName);
//====================================================
//===
} else {
DomUpdate.renderStyleUpdate(rc.getServerMessage(), elementId, propertyName, "");
}
}
private void renderUpdatesViaCssStyle(RenderContext rc, String elementId, Component component, String propertyName) {
CssStyleEx styleEx = new CssStyleEx();
boolean handled = false;
if (component instanceof Borderable && propertyName.equals(Borderable.PROPERTY_BORDER)) {
// special case - remove any previous border value
removeBorderStyles(rc, elementId);
Render.asBorderable(styleEx, (Borderable) component);
handled = true;
} else if (component instanceof Heightable && propertyName.equals(Heightable.PROPERTY_HEIGHT)) {
Render.asHeightable(styleEx, (Heightable) component);
handled = true;
} else if (component instanceof Insetable && propertyName.equals(Insetable.PROPERTY_INSETS)) {
Render.asInsetable(styleEx, (Insetable) component);
handled = true;
} else if (component instanceof Insetable && propertyName.equals(Insetable.PROPERTY_OUTSETS)) {
Render.asInsetable(styleEx, (Insetable) component);
handled = true;
} else if (component instanceof MouseCursorable && propertyName.equals(MouseCursorable.PROPERTY_MOUSE_CURSOR)) {
Render.asMouseCursorable(styleEx, (MouseCursorable) component);
handled = true;
} else if (component instanceof MouseCursorable && propertyName.equals(MouseCursorable.PROPERTY_MOUSE_CURSOR_URI)) {
Render.asMouseCursorable(styleEx, (MouseCursorable) component);
handled = true;
} else if (component instanceof Widthable && propertyName.equals(Widthable.PROPERTY_WIDTH)) {
Render.asWidthable(styleEx, (Widthable) component);
handled = true;
}
if (!handled && component instanceof Positionable) {
boolean ok = false;
if (propertyName.equals(Positionable.PROPERTY_BOTTOM)) {
ok = true;
} else if (propertyName.equals(Positionable.PROPERTY_LEFT)) {
ok = true;
} else if (propertyName.equals(Positionable.PROPERTY_POSITION)) {
ok = true;
} else if (propertyName.equals(Positionable.PROPERTY_RIGHT)) {
ok = true;
} else if (propertyName.equals(Positionable.PROPERTY_TOP)) {
ok = true;
} else if (propertyName.equals(Positionable.PROPERTY_Z_INDEX)) {
ok = true;
}
if (ok) {
Render.asPositionable(styleEx, (Positionable) component);
handled = true;
}
}
if (!handled && component instanceof Scrollable) {
boolean ok = false;
if (propertyName.equals(Scrollable.PROPERTY_SCROLL_BAR_BASE_COLOR)) {
ok = true;
} else if (propertyName.equals(Scrollable.PROPERTY_SCROLL_BAR_POLICY)) {
ok = true;
} else if (propertyName.equals(Scrollable.PROPERTY_SCROLL_BAR_PROPERTIES)) {
ok = true;
}
if (ok) {
Render.asScrollable(styleEx, (Scrollable) component);
handled = true;
}
}
StringTokenizer st1 = new StringTokenizer(styleEx.renderInline(), ":;");
while (st1.hasMoreTokens()) {
String cssAttributeName = st1.nextToken();
if (st1.hasMoreTokens()) {
String cssAttributeValue = st1.nextToken();
cssAttributeName = CssKit.cssAttributeNameToPropertyName(cssAttributeName);
DomUpdate.renderStyleUpdate(rc.getServerMessage(), elementId, cssAttributeName, cssAttributeValue);
}
}
}
}
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