| /******************************************************************************* |
| * Copyright (c) 2000, 2016 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.java; |
| |
| import org.eclipse.osgi.util.TextProcessor; |
| |
| import org.eclipse.swt.graphics.Image; |
| |
| import org.eclipse.core.runtime.Assert; |
| |
| import org.eclipse.jface.viewers.StyledString; |
| |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.contentassist.BoldStylerProvider; |
| |
| import org.eclipse.jdt.core.search.SearchPattern; |
| |
| import org.eclipse.jdt.internal.corext.util.Strings; |
| |
| import org.eclipse.jdt.ui.text.java.JavaContentAssistInvocationContext; |
| |
| |
| public class JavaCompletionProposal extends AbstractJavaCompletionProposal { |
| |
| /** |
| * Creates a new completion proposal. All fields are initialized based on the provided |
| * information. |
| * |
| * @param replacementString the actual string to be inserted into the document |
| * @param replacementOffset the offset of the text to be replaced |
| * @param replacementLength the length of the text to be replaced |
| * @param image the image to display for this proposal |
| * @param displayString the string to be displayed for the proposal If set to <code>null</code>, the replacement string will be taken as display string. |
| * @param relevance the relevance |
| */ |
| public JavaCompletionProposal(String replacementString, int replacementOffset, int replacementLength, Image image, String displayString, int relevance) { |
| this(replacementString, replacementOffset, replacementLength, image, new StyledString(displayString), relevance, false); |
| } |
| |
| /** |
| * Creates a new completion proposal. All fields are initialized based on the provided |
| * information. |
| * |
| * @param replacementString the actual string to be inserted into the document |
| * @param replacementOffset the offset of the text to be replaced |
| * @param replacementLength the length of the text to be replaced |
| * @param image the image to display for this proposal |
| * @param displayString the string to be displayed for the proposal If set to <code>null</code>, the replacement string will be taken as display string. |
| * @param relevance the relevance |
| */ |
| public JavaCompletionProposal(String replacementString, int replacementOffset, int replacementLength, Image image, StyledString displayString, int relevance) { |
| this(replacementString, replacementOffset, replacementLength, image, displayString, relevance, false); |
| } |
| |
| /** |
| * Creates a new completion proposal. All fields are initialized based on the provided |
| * information. |
| * |
| * @param replacementString the actual string to be inserted into the document |
| * @param replacementOffset the offset of the text to be replaced |
| * @param replacementLength the length of the text to be replaced |
| * @param image the image to display for this proposal |
| * @param displayString the string to be displayed for the proposal If set to <code>null</code>, |
| * the replacement string will be taken as display string. |
| * @param relevance the relevance |
| * @param inJavadoc <code>true</code> for a javadoc proposal |
| */ |
| public JavaCompletionProposal(String replacementString, int replacementOffset, int replacementLength, Image image, StyledString displayString, int relevance, boolean inJavadoc) { |
| this(replacementString, replacementOffset, replacementLength, image, displayString, relevance, inJavadoc, null); |
| } |
| |
| /** |
| * Creates a new completion proposal. All fields are initialized based on the provided |
| * information. |
| * |
| * @param replacementString the actual string to be inserted into the document |
| * @param replacementOffset the offset of the text to be replaced |
| * @param replacementLength the length of the text to be replaced |
| * @param image the image to display for this proposal |
| * @param displayString the string to be displayed for the proposal If set to <code>null</code>, |
| * the replacement string will be taken as display string. |
| * @param relevance the relevance |
| * @param inJavadoc <code>true</code> for a javadoc proposal |
| * @param invocationContext the invocation context of this completion proposal or <code>null</code> not available |
| */ |
| public JavaCompletionProposal(String replacementString, int replacementOffset, int replacementLength, Image image, StyledString displayString, int relevance, boolean inJavadoc, JavaContentAssistInvocationContext invocationContext) { |
| super(invocationContext); |
| Assert.isNotNull(replacementString); |
| Assert.isTrue(replacementOffset >= 0); |
| Assert.isTrue(replacementLength >= 0); |
| |
| setReplacementString(replacementString); |
| setReplacementOffset(replacementOffset); |
| setReplacementLength(replacementLength); |
| setImage(image); |
| setStyledDisplayString(displayString == null ? new StyledString(replacementString) : displayString); |
| setRelevance(relevance); |
| setCursorPosition(replacementString.length()); |
| setInJavadoc(inJavadoc); |
| setSortString(displayString == null ? replacementString : displayString.getString()); |
| } |
| |
| @Override |
| protected boolean isValidPrefix(String prefix) { |
| String word= TextProcessor.deprocess(getDisplayString()); |
| if (isInJavadoc()) { |
| if (word.indexOf("{@link ") == 0) { //$NON-NLS-1$ |
| word= word.substring(7); |
| } else if (word.indexOf("{@value ") == 0) { //$NON-NLS-1$ |
| word= word.substring(8); |
| } else if (word.indexOf('<') == 0) { |
| word= word.substring(1); |
| boolean isClosing= word.indexOf('/') == 0; |
| if (isClosing) { |
| word= word.substring(1); |
| } |
| if (prefix.indexOf('<') == 0) { |
| prefix= prefix.substring(1); |
| if (isClosing && prefix.indexOf('/') == 0) { |
| prefix= prefix.substring(1); |
| } |
| } |
| } |
| } else if (word.indexOf("this.") != -1) { //$NON-NLS-1$ |
| word= word.substring(word.indexOf("this.") + 5); //$NON-NLS-1$ |
| } |
| return isPrefix(prefix, word); |
| } |
| |
| @Override |
| public CharSequence getPrefixCompletionText(IDocument document, int completionOffset) { |
| String string= getReplacementString(); |
| int pos= string.indexOf('('); |
| if (pos > 0) |
| return string.subSequence(0, pos); |
| else if (string.startsWith("this.")) //$NON-NLS-1$ |
| return string.substring(5); |
| else |
| return string; |
| } |
| |
| @Override |
| public StyledString getStyledDisplayString(IDocument document, int offset, BoldStylerProvider boldStylerProvider) { |
| StyledString styledDisplayString= new StyledString(); |
| styledDisplayString.append(getStyledDisplayString()); |
| String displayString= styledDisplayString.getString(); |
| if (isInJavadoc() && displayString.indexOf('<') == 0) { |
| displayString= displayString.substring(1); |
| boolean isClosing= displayString.indexOf('/') == 0; |
| if (isClosing) { |
| displayString= displayString.substring(1); |
| } |
| String pattern= getPatternToEmphasizeMatch(document, offset); |
| if (pattern != null && pattern.length() > 0) { |
| if (pattern.indexOf('<') == 0) { |
| pattern= pattern.substring(1); |
| if (isClosing && pattern.indexOf('/') == 0) { |
| pattern= pattern.substring(1); |
| Strings.markMatchingRegions(styledDisplayString, 0, new int[] { 1, 1 }, boldStylerProvider.getBoldStyler()); |
| } |
| Strings.markMatchingRegions(styledDisplayString, 0, new int[] { 0, 1 }, boldStylerProvider.getBoldStyler()); |
| } |
| int patternMatchRule= getPatternMatchRule(pattern, displayString); |
| int[] matchingRegions= SearchPattern.getMatchingRegions(pattern, displayString, patternMatchRule); |
| if (matchingRegions != null) { |
| int inc= isClosing ? 2 : 1; |
| for (int i= 0; i < matchingRegions.length; i+= 2) { |
| matchingRegions[i]= matchingRegions[i] + inc; |
| } |
| } |
| Strings.markMatchingRegions(styledDisplayString, 0, matchingRegions, boldStylerProvider.getBoldStyler()); |
| } |
| return styledDisplayString; |
| } |
| return super.getStyledDisplayString(document, offset, boldStylerProvider); |
| } |
| } |