| /******************************************************************************* |
| * Copyright (c) 2010 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.jst.jsp.ui.internal.contentassist; |
| |
| import org.eclipse.jdt.ui.PreferenceConstants; |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.contentassist.ContentAssistant; |
| import org.eclipse.jface.text.contentassist.IContextInformationValidator; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| import org.eclipse.jst.jsp.core.text.IJSPPartitions; |
| import org.eclipse.wst.html.ui.internal.HTMLUIPlugin; |
| import org.eclipse.wst.html.ui.internal.preferences.HTMLUIPreferenceNames; |
| import org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor; |
| import org.eclipse.wst.xml.ui.internal.contentassist.AttributeContextInformationPresenter; |
| |
| /** |
| * <p>Implementation of {@link StructuredContentAssistProcessor} for JSP documents</p> |
| * |
| * <p>Currently this implementation still uses the HTML preferences for auto |
| * activation characters, but in the future this should probably change</p> |
| */ |
| public class JSPStructuredContentAssistProcessor extends StructuredContentAssistProcessor { |
| |
| /** auto activation characters */ |
| private char[] fCompletionProposalAutoActivationCharacters; |
| |
| /** property key for determining if auto activation is enabled */ |
| private String fAutoActivationEnabledPropertyKey; |
| |
| /** property key for determining what the auto activation characters are */ |
| private String fAutoActivationCharactersPropertyKey; |
| |
| /** the context information validator for this processor */ |
| private IContextInformationValidator fContextInformationValidator; |
| |
| /** |
| * <p>Constructor</p> |
| * |
| * @param assistant {@link ContentAssistant} to use |
| * @param partitionTypeID the partition type this processor is for |
| * @param viewer {@link ITextViewer} this processor is acting in |
| */ |
| public JSPStructuredContentAssistProcessor(ContentAssistant assistant, |
| String partitionTypeID, ITextViewer viewer) { |
| |
| super(assistant, partitionTypeID, viewer, isJavaPartitionType(partitionTypeID) ? |
| PreferenceConstants.getPreferenceStore() : HTMLUIPlugin.getDefault().getPreferenceStore()); |
| |
| //determine which property keys to used based on weather this processor is for Java or HTML syntax |
| if(isJavaPartitionType(partitionTypeID)) { |
| fAutoActivationEnabledPropertyKey = PreferenceConstants.CODEASSIST_AUTOACTIVATION; |
| fAutoActivationCharactersPropertyKey = PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVA; |
| } else { |
| fAutoActivationEnabledPropertyKey = HTMLUIPreferenceNames.AUTO_PROPOSE; |
| fAutoActivationCharactersPropertyKey = HTMLUIPreferenceNames.AUTO_PROPOSE_CODE; |
| } |
| |
| //get the current user preference |
| getAutoActivationCharacterPreferences(); |
| } |
| |
| /** |
| * @see org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor#getContextInformationValidator() |
| */ |
| public IContextInformationValidator getContextInformationValidator() { |
| if (this.fContextInformationValidator == null) { |
| this.fContextInformationValidator = new AttributeContextInformationPresenter(); |
| } |
| return this.fContextInformationValidator; |
| } |
| |
| /** |
| * @see org.eclipse.wst.html.ui.internal.contentassist.HTMLStructuredContentAssistProcessor#getCompletionProposalAutoActivationCharacters() |
| */ |
| public char[] getCompletionProposalAutoActivationCharacters() { |
| return super.getCompletionProposalAutoActivationCharacters() != null ? super.getCompletionProposalAutoActivationCharacters() : this.fCompletionProposalAutoActivationCharacters; |
| } |
| |
| /** |
| * @see org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor#propertyChange( |
| * org.eclipse.jface.util.PropertyChangeEvent) |
| */ |
| public void propertyChange(PropertyChangeEvent event) { |
| String property = event.getProperty(); |
| if(property.equals(fAutoActivationEnabledPropertyKey) || |
| property.equals(fAutoActivationCharactersPropertyKey)) { |
| |
| getAutoActivationCharacterPreferences(); |
| } |
| } |
| |
| /** |
| * <p>Gets the auto activation character user preferences for Java and stores them for later use</p> |
| */ |
| private void getAutoActivationCharacterPreferences() { |
| IPreferenceStore store = getPreferenceStore(); |
| |
| boolean doAuto = store.getBoolean(fAutoActivationEnabledPropertyKey); |
| if (doAuto) { |
| fCompletionProposalAutoActivationCharacters = |
| store.getString(fAutoActivationCharactersPropertyKey).toCharArray(); |
| } else { |
| fCompletionProposalAutoActivationCharacters = null; |
| } |
| } |
| |
| /** |
| * @param partitionTypeID check to see if this partition type ID is for a Java partition type |
| * @return <code>true</code> if the given partiton type is a Java partition type, |
| * <code>false</code> otherwise |
| */ |
| private static boolean isJavaPartitionType(String partitionTypeID) { |
| return IJSPPartitions.JSP_CONTENT_JAVA.equals(partitionTypeID) || IJSPPartitions.JSP_DEFAULT_EL.equals(partitionTypeID) || IJSPPartitions.JSP_DEFAULT_EL2.equals(partitionTypeID); |
| } |
| } |