+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2003 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-
-package net.sourceforge.phpdt.internal.ui.text.java.hover;
-
-import java.text.Collator;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.StringTokenizer;
-
-import net.sourceforge.phpdt.ui.PreferenceConstants;
-import net.sourceforge.phpdt.ui.text.java.hover.IJavaEditorTextHover;
-import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-import net.sourceforge.phpeclipse.phpeditor.EditorUtility;
-
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IConfigurationElement;
-import org.eclipse.core.runtime.IExtensionRegistry;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Platform;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.jface.text.Assert;
-import org.eclipse.swt.SWT;
-import org.osgi.framework.Bundle;
-
-/**
- * Describes a Java editor text hover.
- *
- * @since 2.1
- */
-public class JavaEditorTextHoverDescriptor implements Comparable {
-
- private static final String JAVA_EDITOR_TEXT_HOVER_EXTENSION_POINT= "net.sourceforge.phpeclipse.phpEditorTextHovers"; //$NON-NLS-1$
- private static final String HOVER_TAG= "hover"; //$NON-NLS-1$
- private static final String ID_ATTRIBUTE= "id"; //$NON-NLS-1$
- private static final String CLASS_ATTRIBUTE= "class"; //$NON-NLS-1$
- private static final String LABEL_ATTRIBUTE= "label"; //$NON-NLS-1$
- private static final String ACTIVATE_PLUG_IN_ATTRIBUTE= "activate"; //$NON-NLS-1$
- private static final String DESCRIPTION_ATTRIBUTE= "description"; //$NON-NLS-1$
-
- public static final String NO_MODIFIER= "0"; //$NON-NLS-1$
- public static final String DISABLED_TAG= "!"; //$NON-NLS-1$
- public static final String VALUE_SEPARATOR= ";"; //$NON-NLS-1$
-
- private int fStateMask;
- private String fModifierString;
- private boolean fIsEnabled;
-
- private IConfigurationElement fElement;
-
- /**
- * Returns all Java editor text hovers contributed to the workbench.
- */
- public static JavaEditorTextHoverDescriptor[] getContributedHovers() {
- IExtensionRegistry registry= Platform.getExtensionRegistry();
- IConfigurationElement[] elements= registry.getConfigurationElementsFor(JAVA_EDITOR_TEXT_HOVER_EXTENSION_POINT);
- JavaEditorTextHoverDescriptor[] hoverDescs= createDescriptors(elements);
- initializeFromPreferences(hoverDescs);
- return hoverDescs;
- }
- /**
- * Computes the state mask for the given modifier string.
- *
- * @param modifiers the string with the modifiers, separated by '+', '-', ';', ',' or '.'
- * @return the state mask or -1 if the input is invalid
- */
- public static int computeStateMask(String modifiers) {
- if (modifiers == null)
- return -1;
-
- if (modifiers.length() == 0)
- return SWT.NONE;
-
- int stateMask= 0;
- StringTokenizer modifierTokenizer= new StringTokenizer(modifiers, ",;.:+-* "); //$NON-NLS-1$
- while (modifierTokenizer.hasMoreTokens()) {
- int modifier= EditorUtility.findLocalizedModifier(modifierTokenizer.nextToken());
- if (modifier == 0 || (stateMask & modifier) == modifier)
- return -1;
- stateMask= stateMask | modifier;
- }
- return stateMask;
- }
-
- /**
- * Creates a new Java Editor text hover descriptor from the given configuration element.
- */
- private JavaEditorTextHoverDescriptor(IConfigurationElement element) {
- Assert.isNotNull(element);
- fElement= element;
- }
-
- /**
- * Creates the Java editor text hover.
- */
- public IJavaEditorTextHover createTextHover() {
- String pluginId = fElement.getDeclaringExtension().getNamespace();
- boolean isHoversPlugInActivated= Platform.getBundle(pluginId).getState() == Bundle.ACTIVE;
- if (isHoversPlugInActivated || canActivatePlugIn()) {
- try {
- return (IJavaEditorTextHover)fElement.createExecutableExtension(CLASS_ATTRIBUTE);
- } catch (CoreException x) {
- PHPeclipsePlugin.log(new Status(IStatus.ERROR, PHPeclipsePlugin.getPluginId(), 0, JavaHoverMessages.getString("JavaTextHover.createTextHover"), null)); //$NON-NLS-1$
- }
- }
-
- return null;
- }
- //---- XML Attribute accessors ---------------------------------------------
-
- /**
- * Returns the hover's id.
- */
- public String getId() {
- return fElement.getAttribute(ID_ATTRIBUTE);
- }
-
- /**
- * Returns the hover's class name.
- */
- public String getHoverClassName() {
- return fElement.getAttribute(CLASS_ATTRIBUTE);
- }
-
- /**
- * Returns the hover's label.
- */
- public String getLabel() {
- String label= fElement.getAttribute(LABEL_ATTRIBUTE);
- if (label != null)
- return label;
-
- // Return simple class name
- label= getHoverClassName();
- int lastDot= label.lastIndexOf('.');
- if (lastDot >= 0 && lastDot < label.length() - 1)
- return label.substring(lastDot + 1);
- else
- return label;
- }
-
- /**
- * Returns the hover's description.
- *
- * @return the hover's description or <code>null</code> if not provided
- */
- public String getDescription() {
- return fElement.getAttribute(DESCRIPTION_ATTRIBUTE);
- }
-
-
- public boolean canActivatePlugIn() {
- return Boolean.valueOf(fElement.getAttribute(ACTIVATE_PLUG_IN_ATTRIBUTE)).booleanValue();
- }
-
- public boolean equals(Object obj) {
- if (obj == null || !obj.getClass().equals(this.getClass()) || getId() == null)
- return false;
- return getId().equals(((JavaEditorTextHoverDescriptor)obj).getId());
- }
-
- public int hashCode() {
- return getId().hashCode();
- }
-
- /*
- * Implements a method from IComparable
- */
- public int compareTo(Object o) {
- return Collator.getInstance().compare(getLabel(), ((JavaEditorTextHoverDescriptor)o).getLabel());
- }
-
-// /**
-// * @param descriptor a JavaEditorTextHoverDescriptor
-// * @return <code>true</code> if this contributed hover depends on the other one
-// */
-// public boolean dependsOn(JavaEditorTextHoverDescriptor descriptor) {
-// if (descriptor == null)
-// return false;
-//
-// IPluginDescriptor thisPluginDescriptor= fElement.getDeclaringExtension().getDeclaringPluginDescriptor();
-// IPluginDescriptor otherPluginDescriptor= descriptor.fElement.getDeclaringExtension().getDeclaringPluginDescriptor();
-// return dependsOn(thisPluginDescriptor, otherPluginDescriptor);
-// }
-
-// private boolean dependsOn(IPluginDescriptor descriptor0, IPluginDescriptor descriptor1) {
-//
-// IPluginRegistry registry= Platform.getPluginRegistry();
-// IPluginPrerequisite[] prerequisites= descriptor0.getPluginPrerequisites();
-//
-// for (int i= 0; i < prerequisites.length; i++) {
-// IPluginPrerequisite prerequisite= prerequisites[i];
-// String id= prerequisite.getUniqueIdentifier();
-// IPluginDescriptor descriptor= registry.getPluginDescriptor(id);
-//
-// if (descriptor != null && (descriptor.equals(descriptor1) || dependsOn(descriptor, descriptor1)))
-// return true;
-// }
-//
-// return false;
-// }
-
- private static JavaEditorTextHoverDescriptor[] createDescriptors(IConfigurationElement[] elements) {
- List result= new ArrayList(elements.length);
- for (int i= 0; i < elements.length; i++) {
- IConfigurationElement element= elements[i];
- if (HOVER_TAG.equals(element.getName())) {
- JavaEditorTextHoverDescriptor desc= new JavaEditorTextHoverDescriptor(element);
- result.add(desc);
- }
- }
- Collections.sort(result);
- return (JavaEditorTextHoverDescriptor[])result.toArray(new JavaEditorTextHoverDescriptor[result.size()]);
- }
-
- private static void initializeFromPreferences(JavaEditorTextHoverDescriptor[] hovers) {
- String compiledTextHoverModifiers= PHPeclipsePlugin.getDefault().getPreferenceStore().getString(PreferenceConstants.EDITOR_TEXT_HOVER_MODIFIERS);
-
- StringTokenizer tokenizer= new StringTokenizer(compiledTextHoverModifiers, VALUE_SEPARATOR);
- HashMap idToModifier= new HashMap(tokenizer.countTokens() / 2);
-
- while (tokenizer.hasMoreTokens()) {
- String id= tokenizer.nextToken();
- if (tokenizer.hasMoreTokens())
- idToModifier.put(id, tokenizer.nextToken());
- }
-
- String compiledTextHoverModifierMasks= PHPeclipsePlugin.getDefault().getPreferenceStore().getString(PreferenceConstants.EDITOR_TEXT_HOVER_MODIFIER_MASKS);
-
- tokenizer= new StringTokenizer(compiledTextHoverModifierMasks, VALUE_SEPARATOR);
- HashMap idToModifierMask= new HashMap(tokenizer.countTokens() / 2);
-
- while (tokenizer.hasMoreTokens()) {
- String id= tokenizer.nextToken();
- if (tokenizer.hasMoreTokens())
- idToModifierMask.put(id, tokenizer.nextToken());
- }
-
- for (int i= 0; i < hovers.length; i++) {
- String modifierString= (String)idToModifier.get(hovers[i].getId());
- boolean enabled= true;
- if (modifierString == null)
- modifierString= DISABLED_TAG;
-
- if (modifierString.startsWith(DISABLED_TAG)) {
- enabled= false;
- modifierString= modifierString.substring(1);
- }
-
- if (modifierString.equals(NO_MODIFIER))
- modifierString= ""; //$NON-NLS-1$
-
- hovers[i].fModifierString= modifierString;
- hovers[i].fIsEnabled= enabled;
- hovers[i].fStateMask= computeStateMask(modifierString);
- if (hovers[i].fStateMask == -1) {
- // Fallback: use stored modifier masks
- try {
- hovers[i].fStateMask= Integer.parseInt((String)idToModifierMask.get(hovers[i].getId()));
- } catch (NumberFormatException ex) {
- hovers[i].fStateMask= -1;
- }
- // Fix modifier string
- int stateMask= hovers[i].fStateMask;
- if (stateMask == -1)
- hovers[i].fModifierString=""; //$NON-NLS-1$
- else
- hovers[i].fModifierString= EditorUtility.getModifierString(stateMask);
- }
- }
- }
-
- /**
- * Returns the configured modifier getStateMask for this hover.
- *
- * @return the hover modifier stateMask or -1 if no hover is configured
- */
- public int getStateMask() {
- return fStateMask;
- }
-
- /**
- * Returns the modifier String as set in the preference store.
- *
- * @return the modifier string
- */
- public String getModifierString() {
- return fModifierString;
- }
-
- /**
- * Returns whether this hover is enabled or not.
- *
- * @return <code>true</code> if enabled
- */
- public boolean isEnabled() {
- return fIsEnabled;
- }
-
- /**
- * Returns this hover descriptors configuration element.
- *
- * @return the configuration element
- * @since 3.0
- */
- public IConfigurationElement getConfigurationElement() {
- return fElement;
- }
-}
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