/*******************************************************************************
* Copyright (c) 2000, 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
*******************************************************************************/
package org.eclipse.jdt.internal.ui.text;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceConverter;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.contentassist.ContentAssistant;
import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
import org.eclipse.ui.IWorkbenchPreferenceConstants;
import org.eclipse.jdt.ui.PreferenceConstants;
import org.eclipse.jdt.ui.text.IColorManager;
import org.eclipse.jdt.ui.text.IJavaPartitions;
import org.eclipse.jdt.ui.text.JavaTextTools;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.text.java.JavaCompletionProcessor;
import org.eclipse.jdt.internal.ui.text.javadoc.JavadocCompletionProcessor;
public class ContentAssistPreference {
/** Preference key for content assist auto activation */
private final static String AUTOACTIVATION= PreferenceConstants.CODEASSIST_AUTOACTIVATION;
/** Preference key for content assist auto activation delay */
private final static String AUTOACTIVATION_DELAY= PreferenceConstants.CODEASSIST_AUTOACTIVATION_DELAY;
/** Preference key for content assist parameters color */
private final static String PARAMETERS_FOREGROUND= PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND;
/** Preference key for content assist parameters color */
private final static String PARAMETERS_BACKGROUND= PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND;
/** Preference key for content assist auto insert */
private final static String AUTOINSERT= PreferenceConstants.CODEASSIST_AUTOINSERT;
/** Preference key for java content assist auto activation triggers */
private final static String AUTOACTIVATION_TRIGGERS_JAVA= PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVA;
/** Preference key for javadoc content assist auto activation triggers */
private final static String AUTOACTIVATION_TRIGGERS_JAVADOC= PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVADOC;
/** Preference key for visibility of proposals */
private final static String SHOW_VISIBLE_PROPOSALS= PreferenceConstants.CODEASSIST_SHOW_VISIBLE_PROPOSALS;
/** Preference key for case sensitivity of proposals */
private final static String CASE_SENSITIVITY= PreferenceConstants.CODEASSIST_CASE_SENSITIVITY;
/** Preference key for adding imports on code assist */
/** Preference key for filling argument names on method completion */
private static final String FILL_METHOD_ARGUMENTS= PreferenceConstants.CODEASSIST_FILL_ARGUMENT_NAMES;
/** Preference key for prefix completion. */
private static final String PREFIX_COMPLETION= PreferenceConstants.CODEASSIST_PREFIX_COMPLETION;
/**
* Preference key for colored labels.
* @since 3.4
*/
private static final String USE_COLORED_LABELS= IWorkbenchPreferenceConstants.USE_COLORED_LABELS;
private static Color getColor(IPreferenceStore store, String key, IColorManager manager) {
RGB rgb= PreferenceConverter.getColor(store, key);
return manager.getColor(rgb);
}
private static Color getColor(IPreferenceStore store, String key) {
JavaTextTools textTools= JavaPlugin.getDefault().getJavaTextTools();
return getColor(store, key, textTools.getColorManager());
}
private static JavaCompletionProcessor getJavaProcessor(ContentAssistant assistant) {
IContentAssistProcessor p= assistant.getContentAssistProcessor(IDocument.DEFAULT_CONTENT_TYPE);
if (p instanceof JavaCompletionProcessor)
return (JavaCompletionProcessor) p;
return null;
}
private static JavadocCompletionProcessor getJavaDocProcessor(ContentAssistant assistant) {
IContentAssistProcessor p= assistant.getContentAssistProcessor(IJavaPartitions.JAVA_DOC);
if (p instanceof JavadocCompletionProcessor)
return (JavadocCompletionProcessor) p;
return null;
}
private static void configureJavaProcessor(ContentAssistant assistant, IPreferenceStore store) {
JavaCompletionProcessor jcp= getJavaProcessor(assistant);
if (jcp == null)
return;
String triggers= store.getString(AUTOACTIVATION_TRIGGERS_JAVA);
if (triggers != null)
jcp.setCompletionProposalAutoActivationCharacters(triggers.toCharArray());
boolean enabled= store.getBoolean(SHOW_VISIBLE_PROPOSALS);
jcp.restrictProposalsToVisibility(enabled);
enabled= store.getBoolean(CASE_SENSITIVITY);
jcp.restrictProposalsToMatchingCases(enabled);
}
private static void configureJavaDocProcessor(ContentAssistant assistant, IPreferenceStore store) {
JavadocCompletionProcessor jdcp= getJavaDocProcessor(assistant);
if (jdcp == null)
return;
String triggers= store.getString(AUTOACTIVATION_TRIGGERS_JAVADOC);
if (triggers != null)
jdcp.setCompletionProposalAutoActivationCharacters(triggers.toCharArray());
boolean enabled= store.getBoolean(CASE_SENSITIVITY);
jdcp.restrictProposalsToMatchingCases(enabled);
}
/**
* Configure the given content assistant from the given store.
*
* @param assistant the content assistant
* @param store the preference store
*/
public static void configure(ContentAssistant assistant, IPreferenceStore store) {
JavaTextTools textTools= JavaPlugin.getDefault().getJavaTextTools();
IColorManager manager= textTools.getColorManager();
boolean enabled= store.getBoolean(AUTOACTIVATION);
assistant.enableAutoActivation(enabled);
int delay= store.getInt(AUTOACTIVATION_DELAY);
assistant.setAutoActivationDelay(delay);
Color c= getColor(store, PARAMETERS_FOREGROUND, manager);
assistant.setContextInformationPopupForeground(c);
assistant.setContextSelectorForeground(c);
c= getColor(store, PARAMETERS_BACKGROUND, manager);
assistant.setContextInformationPopupBackground(c);
assistant.setContextSelectorBackground(c);
enabled= store.getBoolean(AUTOINSERT);
assistant.enableAutoInsert(enabled);
enabled= store.getBoolean(PREFIX_COMPLETION);
assistant.enablePrefixCompletion(enabled);
enabled= store.getBoolean(USE_COLORED_LABELS);
assistant.enableColoredLabels(enabled);
configureJavaProcessor(assistant, store);
configureJavaDocProcessor(assistant, store);
}
private static void changeJavaProcessor(ContentAssistant assistant, IPreferenceStore store, String key) {
JavaCompletionProcessor jcp= getJavaProcessor(assistant);
if (jcp == null)
return;
if (AUTOACTIVATION_TRIGGERS_JAVA.equals(key)) {
String triggers= store.getString(AUTOACTIVATION_TRIGGERS_JAVA);
if (triggers != null)
jcp.setCompletionProposalAutoActivationCharacters(triggers.toCharArray());
} else if (SHOW_VISIBLE_PROPOSALS.equals(key)) {
boolean enabled= store.getBoolean(SHOW_VISIBLE_PROPOSALS);
jcp.restrictProposalsToVisibility(enabled);
} else if (CASE_SENSITIVITY.equals(key)) {
boolean enabled= store.getBoolean(CASE_SENSITIVITY);
jcp.restrictProposalsToMatchingCases(enabled);
}
}
private static void changeJavaDocProcessor(ContentAssistant assistant, IPreferenceStore store, String key) {
JavadocCompletionProcessor jdcp= getJavaDocProcessor(assistant);
if (jdcp == null)
return;
if (AUTOACTIVATION_TRIGGERS_JAVADOC.equals(key)) {
String triggers= store.getString(AUTOACTIVATION_TRIGGERS_JAVADOC);
if (triggers != null)
jdcp.setCompletionProposalAutoActivationCharacters(triggers.toCharArray());
} else if (CASE_SENSITIVITY.equals(key)) {
boolean enabled= store.getBoolean(CASE_SENSITIVITY);
jdcp.restrictProposalsToMatchingCases(enabled);
}
}
/**
* Changes the configuration of the given content assistant according to the given property
* change event and the given preference store.
*
* @param assistant the content assistant
* @param store the preference store
* @param event the property change event
*/
public static void changeConfiguration(ContentAssistant assistant, IPreferenceStore store, PropertyChangeEvent event) {
String p= event.getProperty();
if (AUTOACTIVATION.equals(p)) {
boolean enabled= store.getBoolean(AUTOACTIVATION);
assistant.enableAutoActivation(enabled);
} else if (AUTOACTIVATION_DELAY.equals(p)) {
int delay= store.getInt(AUTOACTIVATION_DELAY);
assistant.setAutoActivationDelay(delay);
} else if (PARAMETERS_FOREGROUND.equals(p)) {
Color c= getColor(store, PARAMETERS_FOREGROUND);
assistant.setContextInformationPopupForeground(c);
assistant.setContextSelectorForeground(c);
} else if (PARAMETERS_BACKGROUND.equals(p)) {
Color c= getColor(store, PARAMETERS_BACKGROUND);
assistant.setContextInformationPopupBackground(c);
assistant.setContextSelectorBackground(c);
} else if (AUTOINSERT.equals(p)) {
boolean enabled= store.getBoolean(AUTOINSERT);
assistant.enableAutoInsert(enabled);
} else if (PREFIX_COMPLETION.equals(p)) {
boolean enabled= store.getBoolean(PREFIX_COMPLETION);
assistant.enablePrefixCompletion(enabled);
} else if (USE_COLORED_LABELS.equals(p)) {
boolean enabled= store.getBoolean(USE_COLORED_LABELS);
assistant.enableColoredLabels(enabled);
}
changeJavaProcessor(assistant, store, p);
changeJavaDocProcessor(assistant, store, p);
}
public static boolean fillArgumentsOnMethodCompletion(IPreferenceStore store) {
return store.getBoolean(FILL_METHOD_ARGUMENTS);
}
}