/*******************************************************************************
* Copyright (c) 2001, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.sse.ui.internal.extension;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IMenuCreator;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.ListenerList;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.events.HelpListener;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.texteditor.IUpdate;
import org.eclipse.wst.sse.ui.internal.IExtendedEditorAction;
import org.eclipse.wst.sse.ui.internal.IExtendedSimpleEditor;
import org.eclipse.wst.sse.ui.internal.Logger;
import org.osgi.framework.Bundle;
public class ExtendedEditorActionProxyForDelayLoading implements IExtendedEditorAction, IExtendedEditorActionProxyForDelayLoading, IAction {
private IAction proxy;
private IAction dummy = new Action() { // this is for mainly its property change notify...
};
// proxy'ed properties
private String p_id;
private boolean set_p_id;
private String p_text;
private String p_description;
private boolean set_p_text;
private boolean set_p_description;
private String p_toolTipText;
private boolean set_p_toolTipText;
private String p_actionDefinitionId;
private boolean set_p_actionDefinitionId;
private ImageDescriptor p_image;
private boolean set_p_image;
private ImageDescriptor p_hoverImage;
private boolean set_p_hoverImage;
private ImageDescriptor p_disabledImage;
private boolean set_p_disabledImage;
private int p_accelerator;
private boolean set_p_accelerator;
private int p_style = AS_PUSH_BUTTON;
//private boolean set_p_style;
private HelpListener p_helpListener;
private boolean set_p_helpListener;
private boolean p_enabled = true; // should be same as what is done in
private boolean set_p_enabled;
private ListenerList p_listeners = new ListenerList(3);
private boolean set_p_listeners;
private boolean p_checked;
private boolean set_p_checked;
private IExtendedSimpleEditor p_targetEditor;
private boolean set_p_targetEditor;
private boolean p_isvisible = true; // should be true
private IConfigurationElement element;
private String classAttribute;
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#addPropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener)
*/
public void addPropertyChangeListener(IPropertyChangeListener listener) {
p_listeners.add(listener);
set_p_listeners = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.addPropertyChangeListener(listener);
} else {
dummy.addPropertyChangeListener(listener);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getAccelerator()
*/
public int getAccelerator() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getAccelerator();
}
return p_accelerator;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getActionDefinitionId()
*/
public String getActionDefinitionId() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getActionDefinitionId();
}
return p_actionDefinitionId;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getDescription()
*/
public String getDescription() {
// System.out.println(p_id + ": getDescription");
// System.out.flush();
if (proxy != null) {
return proxy.getDescription();
}
return p_description;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getDisabledImageDescriptor()
*/
public ImageDescriptor getDisabledImageDescriptor() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getDisabledImageDescriptor();
}
return p_disabledImage;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getHelpListener()
*/
public HelpListener getHelpListener() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getHelpListener();
}
return p_helpListener;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getHoverImageDescriptor()
*/
public ImageDescriptor getHoverImageDescriptor() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getHoverImageDescriptor();
}
return p_hoverImage;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getId()
*/
public String getId() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getId();
}
return p_id;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getImageDescriptor()
*/
public ImageDescriptor getImageDescriptor() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getImageDescriptor();
}
return p_image;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getMenuCreator()
*/
public IMenuCreator getMenuCreator() {
// System.out.println(p_id + ": getMenuCreator");
// System.out.flush();
realize();
if (proxy != null) {
return proxy.getMenuCreator();
}
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getStyle()
*/
public int getStyle() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getStyle();
}
return p_style;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getText()
*/
public String getText() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getText();
}
if (p_text != null) {
return p_text;
}
return "";
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#getToolTipText()
*/
public String getToolTipText() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.getToolTipText();
}
return p_toolTipText;
}
/**
* Check if the contributing bundle is active
*/
public boolean isBundleActive() {
Bundle bundle = Platform.getBundle(element.getDeclaringExtension().getNamespace());
if (bundle != null && bundle.getState() != Bundle.ACTIVE) {
return false;
}
return true;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#isChecked()
*/
public boolean isChecked() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.isChecked();
}
return p_checked;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#isEnabled()
*/
public boolean isEnabled() {
// don't realize class.
// realize();
if (proxy != null) {
return proxy.isEnabled();
}
return p_enabled;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#removePropertyChangeListener(org.eclipse.jface.util.IPropertyChangeListener)
*/
public void removePropertyChangeListener(IPropertyChangeListener listener) {
p_listeners.remove(listener);
// don't realize class.
// realize();
if (proxy != null) {
proxy.removePropertyChangeListener(listener);
}
dummy.removePropertyChangeListener(listener);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#run()
*/
public void run() {
realize();
if (proxy != null) {
// if this has a key accelerator, first update this action and to
// see if this action is enabled or not.
if ((proxy.getAccelerator() > 0) || (proxy.getActionDefinitionId() != null)) {
update();
if (isEnabled() == true) {
proxy.run();
}
} else {
proxy.run();
}
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#runWithEvent(org.eclipse.swt.widgets.Event)
*/
public void runWithEvent(Event event) {
realize();
if (proxy != null) {
// same as run()
if ((proxy.getAccelerator() > 0) || (proxy.getActionDefinitionId() != null)) {
update();
if (isEnabled() == true) {
proxy.runWithEvent(event);
}
} else {
proxy.runWithEvent(event);
}
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setActionDefinitionId(java.lang.String)
*/
public void setActionDefinitionId(String id) {
p_actionDefinitionId = id;
set_p_actionDefinitionId = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setActionDefinitionId(id);
} else {
dummy.setActionDefinitionId(id);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setChecked(boolean)
*/
public void setChecked(boolean checked) {
p_checked = checked;
set_p_checked = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setChecked(checked);
} else {
dummy.setChecked(checked);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setDescription(java.lang.String)
*/
public void setDescription(String description) {
p_description = description;
set_p_description = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setDescription(description);
} else {
dummy.setDescription(description);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setDisabledImageDescriptor(org.eclipse.jface.resource.ImageDescriptor)
*/
public void setDisabledImageDescriptor(ImageDescriptor newImage) {
p_disabledImage = newImage;
set_p_disabledImage = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setDisabledImageDescriptor(newImage);
} else {
dummy.setDisabledImageDescriptor(newImage);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setEnabled(boolean)
*/
public void setEnabled(boolean enabled) {
p_enabled = enabled;
set_p_enabled = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setEnabled(enabled);
} else {
dummy.setEnabled(enabled);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setHelpListener(org.eclipse.swt.events.HelpListener)
*/
public void setHelpListener(HelpListener listener) {
p_helpListener = listener;
set_p_helpListener = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setHelpListener(listener);
} else {
dummy.setHelpListener(listener);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setHoverImageDescriptor(org.eclipse.jface.resource.ImageDescriptor)
*/
public void setHoverImageDescriptor(ImageDescriptor newImage) {
p_hoverImage = newImage;
set_p_hoverImage = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setHoverImageDescriptor(newImage);
} else {
dummy.setHoverImageDescriptor(newImage);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setId(java.lang.String)
*/
public void setId(String id) {
p_id = id;
set_p_id = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setId(id);
} else {
dummy.setId(id);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setImageDescriptor(org.eclipse.jface.resource.ImageDescriptor)
*/
public void setImageDescriptor(ImageDescriptor newImage) {
p_image = newImage;
set_p_image = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setImageDescriptor(newImage);
} else {
dummy.setImageDescriptor(newImage);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setMenuCreator(org.eclipse.jface.action.IMenuCreator)
*/
public void setMenuCreator(IMenuCreator creator) {
// System.out.println(p_id + ": setMenuCreator");
// System.out.flush();
realize();
if (proxy != null) {
proxy.setMenuCreator(creator);
} else {
dummy.setMenuCreator(creator);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setText(java.lang.String)
*/
public void setText(String text) {
p_text = text;
set_p_text = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setText(text);
} else {
dummy.setText(text);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setToolTipText(java.lang.String)
*/
public void setToolTipText(String text) {
p_toolTipText = text;
set_p_toolTipText = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setToolTipText(text);
} else {
dummy.setToolTipText(text);
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#setAccelerator(int)
*/
public void setAccelerator(int keycode) {
p_accelerator = keycode;
set_p_accelerator = true;
// don't realize class.
// realize();
if (proxy != null) {
proxy.setAccelerator(keycode);
} else {
dummy.setAccelerator(keycode);
}
}
/* (non-Javadoc)
* @see org.eclipse.wst.sse.ui.internal.IExtendedEditorAction#setActiveExtendedEditor(com.ibm.sse.editor.extension.IExtendedSimpleEditor)
*/
public void setActiveExtendedEditor(IExtendedSimpleEditor targetEditor) {
p_targetEditor = targetEditor;
set_p_targetEditor = true;
// don't realize class.
// realize();
if ((proxy != null) && (proxy instanceof IExtendedEditorAction)) {
((IExtendedEditorAction)proxy).setActiveExtendedEditor(targetEditor);
}
}
/* (non-Javadoc)
* @see com.ibm.sse.editor.extension.IExtendedEditorAction#isVisible()
*/
public boolean isVisible() {
// don't realize class.
// realize();
if ((proxy != null) && (proxy instanceof IExtendedEditorAction)) {
return ((IExtendedEditorAction)proxy).isVisible();
}
return p_isvisible;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#isHandled
*/
public boolean isHandled() {
return false;
}
// see ActionDescriptor#createExtension
private static IAction newInstance(final IConfigurationElement elm, final String cla) {
final Object[] result = new Object[1];
// If plugin has been loaded create extension.
// Otherwise, show busy cursor then create extension.
Bundle bundle= Platform.getBundle(elm.getDeclaringExtension().getNamespace());
if (bundle != null && bundle.getState() == Bundle.ACTIVE) {
try {
result[0] = elm.createExecutableExtension(cla);
}
catch (Exception e) {
// catch and log ANY exception from extension point
handleCreateExecutableException(result, e, elm.getAttribute(cla));
}
}
else {
BusyIndicator.showWhile(null, new Runnable() {
public void run() {
try {
result[0] = elm.createExecutableExtension(cla);
}
catch (Exception e) {
// catch and log ANY exception from extension point
handleCreateExecutableException(result, e, elm.getAttribute(cla));
}
}
});
}
if ((result[0] != null) && (result[0] instanceof IAction)) {
return (IAction)result[0];
}
return null;
}
private static void handleCreateExecutableException(final Object[] result, Throwable e, String classname) {
Logger.logException("Unable to create proxy action for " + classname, e);
result[0] = null;
}
/**
* Instantiate a real class here
*/
public void realize() {
if ((proxy == null) && (element != null) && (classAttribute != null)) {
proxy = newInstance(element, classAttribute);
if (proxy != null) {
// propagate proxy'ed properties
if (set_p_listeners == true) {
if (p_listeners.size() > 0) {
Object[] l = p_listeners.getListeners();
int ls = l.length;
for (int i = 0; i < ls; i++) {
IPropertyChangeListener pl = (IPropertyChangeListener) l[i];
proxy.addPropertyChangeListener(pl);
dummy.removePropertyChangeListener(pl); // remove listener from dymmy so that we don't send notifications twice anymore
}
}
}
if (set_p_accelerator == true) {
proxy.setAccelerator(p_accelerator);
}
if (set_p_actionDefinitionId == true) {
if (p_actionDefinitionId != null) {
proxy.setActionDefinitionId(p_actionDefinitionId);
}
}
if (set_p_checked == true) {
proxy.setChecked(p_checked);
}
if (set_p_disabledImage == true) {
if (p_disabledImage != null) {
proxy.setDisabledImageDescriptor(p_disabledImage);
}
}
if (set_p_enabled == true) {
proxy.setEnabled(p_enabled);
}
if (set_p_helpListener == true) {
if (p_helpListener != null) {
proxy.setHelpListener(p_helpListener);
}
}
if (set_p_hoverImage == true) {
if (p_hoverImage != null) {
proxy.setHoverImageDescriptor(p_hoverImage);
}
}
if (set_p_id == true) {
if (p_id != null) {
proxy.setId(p_id);
}
}
if (set_p_image == true) {
if (p_image != null) {
proxy.setImageDescriptor(p_image);
}
}
if (set_p_text == true) {
if (p_text != null) {
proxy.setText(p_text);
}
}
if (set_p_description == true) {
if (p_description != null) {
proxy.setDescription(p_description);
}
}
if (set_p_toolTipText == true) {
if (p_toolTipText != null) {
proxy.setToolTipText(p_toolTipText);
}
}
if (set_p_targetEditor == true) {
if (p_targetEditor != null) {
if (proxy instanceof IExtendedEditorAction) {
((IExtendedEditorAction)proxy).setActiveExtendedEditor(p_targetEditor);
}
}
}
}
}
}
public boolean isRealized() {
return (proxy != null);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.texteditor.IUpdate#update()
*/
public void update() {
// don't realize class.
// realize();
if ((proxy != null) && (proxy instanceof IUpdate)) {
((IUpdate) proxy).update();
}
}
/**
* get a real action class
*/
public IAction getAction() {
realize();
return proxy;
}
/**
* These are Actions's constructors
*/
ExtendedEditorActionProxyForDelayLoading() {
super();
}
public ExtendedEditorActionProxyForDelayLoading(final IConfigurationElement element, final String classAttribute) {
super();
this.element = element;
this.classAttribute = classAttribute;
}
}