| /******************************************************************************* |
| * Copyright (c) 2005, 2006 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.common.internal.annotations.ui; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| |
| import org.eclipse.core.runtime.FileLocator; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.JavaCore; |
| import org.eclipse.jdt.core.compiler.CharOperation; |
| import org.eclipse.jdt.ui.JavaUI; |
| import org.eclipse.jdt.ui.PreferenceConstants; |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.preference.PreferenceConverter; |
| import org.eclipse.jface.text.Assert; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.BadPositionCategoryException; |
| import org.eclipse.jface.text.DefaultPositionUpdater; |
| import org.eclipse.jface.text.DocumentCommand; |
| import org.eclipse.jface.text.DocumentEvent; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IInformationControlCreator; |
| import org.eclipse.jface.text.IPositionUpdater; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.ITextViewerExtension2; |
| import org.eclipse.jface.text.ITextViewerExtension5; |
| import org.eclipse.jface.text.Position; |
| import org.eclipse.jface.text.Region; |
| import org.eclipse.jface.text.contentassist.IContextInformation; |
| import org.eclipse.jface.text.link.ILinkedModeListener; |
| import org.eclipse.jface.text.link.LinkedModeModel; |
| import org.eclipse.jface.text.link.LinkedModeUI; |
| import org.eclipse.jface.text.link.LinkedPosition; |
| import org.eclipse.jface.text.link.LinkedPositionGroup; |
| import org.eclipse.jface.text.link.LinkedModeUI.ExitFlags; |
| import org.eclipse.jface.text.link.LinkedModeUI.IExitPolicy; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.StyleRange; |
| import org.eclipse.swt.custom.StyledText; |
| import org.eclipse.swt.events.VerifyEvent; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.graphics.RGB; |
| import org.eclipse.ui.texteditor.link.EditorLinkedModeUI; |
| import org.osgi.framework.Bundle; |
| |
| /** |
| * |
| * @since 3.2 |
| */ |
| public abstract class AbstractAnnotationTagProposal { |
| /** |
| * A class to simplify tracking a reference position in a document. |
| */ |
| static final class ReferenceTracker { |
| |
| /** The reference position category name. */ |
| private static final String CATEGORY= "reference_position"; //$NON-NLS-1$ |
| /** The position updater of the reference position. */ |
| private final IPositionUpdater fPositionUpdater= new DefaultPositionUpdater(CATEGORY); |
| /** The reference position. */ |
| private final Position fPosition= new Position(0); |
| |
| /** |
| * Called before document changes occur. It must be followed by a call to postReplace(). |
| * |
| * @param document the document on which to track the reference position. |
| * |
| */ |
| public void preReplace(IDocument document, int offset) throws BadLocationException { |
| fPosition.setOffset(offset); |
| try { |
| document.addPositionCategory(CATEGORY); |
| document.addPositionUpdater(fPositionUpdater); |
| document.addPosition(CATEGORY, fPosition); |
| |
| } catch (BadPositionCategoryException e) { |
| // should not happen |
| e.printStackTrace(); |
| } |
| } |
| |
| /** |
| * Called after the document changed occurred. It must be preceded by a call to preReplace(). |
| * |
| * @param document the document on which to track the reference position. |
| */ |
| public int postReplace(IDocument document) { |
| try { |
| document.removePosition(CATEGORY, fPosition); |
| document.removePositionUpdater(fPositionUpdater); |
| document.removePositionCategory(CATEGORY); |
| |
| } catch (BadPositionCategoryException e) { |
| // should not happen |
| e.printStackTrace(); |
| } |
| return fPosition.getOffset(); |
| } |
| } |
| |
| protected static final class ExitPolicy implements IExitPolicy { |
| |
| final char fExitCharacter; |
| private final IDocument fDocument; |
| |
| public ExitPolicy(char exitCharacter, IDocument document) { |
| fExitCharacter= exitCharacter; |
| fDocument= document; |
| } |
| |
| /* |
| * @see org.eclipse.jdt.internal.ui.text.link.LinkedPositionUI.ExitPolicy#doExit(org.eclipse.jdt.internal.ui.text.link.LinkedPositionManager, org.eclipse.swt.events.VerifyEvent, int, int) |
| */ |
| public ExitFlags doExit(LinkedModeModel environment, VerifyEvent event, int offset, int length) { |
| |
| if (event.character == fExitCharacter) { |
| if (environment.anyPositionContains(offset)) |
| return new ExitFlags(ILinkedModeListener.UPDATE_CARET, false); |
| return new ExitFlags(ILinkedModeListener.UPDATE_CARET, true); |
| } |
| |
| switch (event.character) { |
| case ';': |
| return new ExitFlags(ILinkedModeListener.NONE, true); |
| case SWT.CR: |
| // when entering an anonymous class as a parameter, we don't want |
| // to jump after the parenthesis when return is pressed |
| if (offset > 0) { |
| try { |
| if (fDocument.getChar(offset - 1) == '{') |
| return new ExitFlags(ILinkedModeListener.EXIT_ALL, true); |
| } catch (BadLocationException e) { |
| } |
| } |
| // fall through |
| default: |
| return null; |
| } |
| } |
| |
| } |
| |
| private String fDisplayString; |
| private String fReplacementString; |
| private int fReplacementOffset; |
| private int fReplacementLength; |
| private int fCursorPosition; |
| private Image fImage; |
| private IContextInformation fContextInformation; |
| //private ProposalInfo fProposalInfo; |
| private char[] fTriggerCharacters; |
| private String fSortString; |
| private int fRelevance; |
| private boolean fIsInJavadoc; |
| |
| private StyleRange fRememberedStyleRange; |
| private boolean fToggleEating; |
| private ITextViewer fTextViewer; |
| |
| /** |
| * The URL of the style sheet (css). |
| * @since 3.2 |
| */ |
| private URL fStyleSheetURL; |
| |
| protected AbstractAnnotationTagProposal() { |
| } |
| |
| /* |
| * @see ICompletionProposalExtension#getTriggerCharacters() |
| */ |
| public char[] getTriggerCharacters() { |
| return fTriggerCharacters; |
| } |
| |
| /** |
| * Sets the trigger characters. |
| * |
| * @param triggerCharacters The set of characters which can trigger the application of this |
| * completion proposal |
| */ |
| public void setTriggerCharacters(char[] triggerCharacters) { |
| fTriggerCharacters= triggerCharacters; |
| } |
| |
| /** |
| * Sets the proposal info. |
| * |
| * @param proposalInfo The additional information associated with this proposal or |
| * <code>null</code> |
| */ |
| // public void setProposalInfo(ProposalInfo proposalInfo) { |
| // fProposalInfo= proposalInfo; |
| // } |
| |
| /** |
| * Returns the additional proposal info, or <code>null</code> if none exists. |
| * |
| * @return the additional proposal info, or <code>null</code> if none exists |
| */ |
| // protected ProposalInfo getProposalInfo() { |
| // return fProposalInfo; |
| // } |
| |
| /** |
| * Sets the cursor position relative to the insertion offset. By default this is the length of |
| * the completion string (Cursor positioned after the completion) |
| * |
| * @param cursorPosition The cursorPosition to set |
| */ |
| public void setCursorPosition(int cursorPosition) { |
| Assert.isTrue(cursorPosition >= 0); |
| fCursorPosition= cursorPosition; |
| } |
| |
| protected int getCursorPosition() { |
| return fCursorPosition; |
| } |
| |
| /* |
| * @see ICompletionProposal#apply |
| */ |
| public final void apply(IDocument document) { |
| // not used any longer |
| apply(document, (char) 0, getReplacementOffset() + getReplacementLength()); |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension#apply(org.eclipse.jface.text.IDocument, char, int) |
| */ |
| public void apply(IDocument document, char trigger, int offset) { |
| try { |
| // patch replacement length |
| int delta= offset - (getReplacementOffset() + getReplacementLength()); |
| if (delta > 0) |
| setReplacementLength(getReplacementLength() + delta); |
| |
| boolean isSmartTrigger= isSmartTrigger(trigger); |
| |
| String replacement; |
| if (isSmartTrigger || trigger == (char) 0) { |
| replacement= getReplacementString(); |
| } else { |
| StringBuffer buffer= new StringBuffer(getReplacementString()); |
| |
| // fix for PR #5533. Assumes that no eating takes place. |
| if ((getCursorPosition() > 0 && getCursorPosition() <= buffer.length() && buffer.charAt(getCursorPosition() - 1) != trigger)) { |
| buffer.insert(getCursorPosition(), trigger); |
| setCursorPosition(getCursorPosition() + 1); |
| } |
| |
| replacement= buffer.toString(); |
| setReplacementString(replacement); |
| } |
| |
| // reference position just at the end of the document change. |
| int referenceOffset= getReplacementOffset() + getReplacementLength(); |
| final ReferenceTracker referenceTracker= new ReferenceTracker(); |
| referenceTracker.preReplace(document, referenceOffset); |
| |
| replace(document, getReplacementOffset(), getReplacementLength(), replacement); |
| |
| referenceOffset= referenceTracker.postReplace(document); |
| setReplacementOffset(referenceOffset - (replacement == null ? 0 : replacement.length())); |
| |
| // PR 47097 |
| if (isSmartTrigger) |
| handleSmartTrigger(document, trigger, referenceOffset); |
| |
| } catch (BadLocationException x) { |
| // ignore |
| } |
| } |
| |
| private boolean isSmartTrigger(char trigger) { |
| return trigger == ';' && getBooleanPreference(PreferenceConstants.EDITOR_SMART_SEMICOLON) |
| || trigger == '{' && getBooleanPreference(PreferenceConstants.EDITOR_SMART_OPENING_BRACE); |
| } |
| |
| private boolean getBooleanPreference(String preferenceKey) { |
| String value = PreferenceConstants.getPreference(preferenceKey, getProject()); |
| if (value != null) |
| return Boolean.valueOf(value).booleanValue(); |
| return false; |
| } |
| |
| private void handleSmartTrigger(IDocument document, char trigger, int referenceOffset) throws BadLocationException { |
| DocumentCommand cmd= new DocumentCommand() { |
| }; |
| |
| cmd.offset= referenceOffset; |
| cmd.length= 0; |
| cmd.text= Character.toString(trigger); |
| cmd.doit= true; |
| cmd.shiftsCaret= true; |
| cmd.caretOffset= getReplacementOffset() + getCursorPosition(); |
| |
| // SmartSemicolonAutoEditStrategy strategy= new SmartSemicolonAutoEditStrategy(IJavaPartitions.JAVA_PARTITIONING); |
| // strategy.customizeDocumentCommand(document, cmd); |
| |
| replace(document, cmd.offset, cmd.length, cmd.text); |
| setCursorPosition(cmd.caretOffset - getReplacementOffset() + cmd.text.length()); |
| } |
| |
| protected final void replace(IDocument document, int offset, int length, String string) throws BadLocationException { |
| if (!document.get(offset, length).equals(string)) |
| document.replace(offset, length, string); |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension1#apply(org.eclipse.jface.text.ITextViewer, char, int, int) |
| */ |
| public void apply(ITextViewer viewer, char trigger, int stateMask, int offset) { |
| |
| IDocument document= viewer.getDocument(); |
| if (fTextViewer == null) |
| fTextViewer= viewer; |
| |
| // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=96059 |
| // don't apply the proposal if for some reason we're not valid any longer |
| if (!isInJavadoc() && !validate(document, offset, null)) { |
| setCursorPosition(offset - getReplacementOffset()); |
| if (trigger != '\0') { |
| try { |
| document.replace(offset, 0, String.valueOf(trigger)); |
| setCursorPosition(getCursorPosition() + 1); |
| if (trigger == '(' && autocloseBrackets()) { |
| document.replace(getReplacementOffset() + getCursorPosition(), 0, ")"); //$NON-NLS-1$ |
| setUpLinkedMode(document, ')'); |
| } |
| } catch (BadLocationException x) { |
| // ignore |
| } |
| } |
| return; |
| } |
| |
| // don't eat if not in preferences, XOR with modifier key 1 (Ctrl) |
| // but: if there is a selection, replace it! |
| Point selection= viewer.getSelectedRange(); |
| fToggleEating= (stateMask & SWT.MOD1) != 0; |
| int newLength= selection.x + selection.y - getReplacementOffset(); |
| if ((insertCompletion() ^ fToggleEating) && newLength >= 0) |
| setReplacementLength(newLength); |
| |
| apply(document, trigger, offset); |
| fToggleEating= false; |
| } |
| |
| /** |
| * Returns <code>true</code> if the proposal is within javadoc, <code>false</code> |
| * otherwise. |
| * |
| * @return <code>true</code> if the proposal is within javadoc, <code>false</code> otherwise |
| */ |
| protected boolean isInJavadoc(){ |
| return fIsInJavadoc; |
| } |
| |
| /** |
| * Sets the javadoc attribute. |
| * |
| * @param isInJavadoc <code>true</code> if the proposal is within javadoc |
| */ |
| protected void setInJavadoc(boolean isInJavadoc) { |
| fIsInJavadoc= isInJavadoc; |
| } |
| |
| /* |
| * @see ICompletionProposal#getSelection |
| */ |
| public Point getSelection(IDocument document) { |
| return new Point(getReplacementOffset() + getCursorPosition(), 0); |
| } |
| |
| /* |
| * @see ICompletionProposal#getContextInformation() |
| */ |
| public IContextInformation getContextInformation() { |
| return fContextInformation; |
| } |
| |
| /** |
| * Sets the context information. |
| * @param contextInformation The context information associated with this proposal |
| */ |
| public void setContextInformation(IContextInformation contextInformation) { |
| fContextInformation= contextInformation; |
| } |
| |
| /* |
| * @see ICompletionProposal#getDisplayString() |
| */ |
| public String getDisplayString() { |
| return fDisplayString; |
| } |
| |
| /* |
| * @see ICompletionProposal#getAdditionalProposalInfo() |
| */ |
| public String getAdditionalProposalInfo() { |
| // if (getProposalInfo() != null) { |
| // String info= getProposalInfo().getInfo(null); |
| // if (info != null && info.length() > 0) { |
| // StringBuffer buffer= new StringBuffer(); |
| // HTMLPrinter.insertPageProlog(buffer, 0, getStyleSheetURL()); |
| // buffer.append(info); |
| // HTMLPrinter.addPageEpilog(buffer); |
| // info= buffer.toString(); |
| // } |
| // return info; |
| // } |
| return null; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension5#getAdditionalProposalInfo(org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public Object getAdditionalProposalInfo(IProgressMonitor monitor) { |
| // if (getProposalInfo() != null) { |
| // String info= getProposalInfo().getInfo(monitor); |
| // if (info != null && info.length() > 0) { |
| // StringBuffer buffer= new StringBuffer(); |
| // HTMLPrinter.insertPageProlog(buffer, 0, getStyleSheetURL()); |
| // buffer.append(info); |
| // HTMLPrinter.addPageEpilog(buffer); |
| // info= buffer.toString(); |
| // } |
| // return info; |
| // } |
| return null; |
| } |
| |
| /** |
| * Returns the style sheet URL. |
| * |
| * @since 3.1 |
| */ |
| protected URL getStyleSheetURL() { |
| if (fStyleSheetURL == null) { |
| |
| Bundle bundle= Platform.getBundle(JavaUI.ID_PLUGIN); |
| fStyleSheetURL= bundle.getEntry("/JavadocHoverStyleSheet.css"); //$NON-NLS-1$ |
| if (fStyleSheetURL != null) { |
| try { |
| fStyleSheetURL= FileLocator.toFileURL(fStyleSheetURL); |
| } catch (IOException ex) { |
| ex.printStackTrace(); |
| } |
| } |
| } |
| return fStyleSheetURL; |
| } |
| |
| /* |
| * @see ICompletionProposalExtension#getContextInformationPosition() |
| */ |
| public int getContextInformationPosition() { |
| if (getContextInformation() == null) |
| return getReplacementOffset() - 1; |
| return getReplacementOffset() + getCursorPosition(); |
| } |
| |
| /** |
| * Gets the replacement offset. |
| * @return Returns a int |
| */ |
| public int getReplacementOffset() { |
| return fReplacementOffset; |
| } |
| |
| /** |
| * Sets the replacement offset. |
| * @param replacementOffset The replacement offset to set |
| */ |
| public void setReplacementOffset(int replacementOffset) { |
| Assert.isTrue(replacementOffset >= 0); |
| fReplacementOffset= replacementOffset; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension3#getCompletionOffset() |
| */ |
| public int getPrefixCompletionStart(IDocument document, int completionOffset) { |
| return getReplacementOffset(); |
| } |
| |
| /** |
| * Gets the replacement length. |
| * @return Returns a int |
| */ |
| public int getReplacementLength() { |
| return fReplacementLength; |
| } |
| |
| /** |
| * Sets the replacement length. |
| * @param replacementLength The replacementLength to set |
| */ |
| public void setReplacementLength(int replacementLength) { |
| Assert.isTrue(replacementLength >= 0); |
| fReplacementLength= replacementLength; |
| } |
| |
| /** |
| * Gets the replacement string. |
| * @return Returns a String |
| */ |
| public String getReplacementString() { |
| return fReplacementString; |
| } |
| |
| /** |
| * Sets the replacement string. |
| * @param replacementString The replacement string to set |
| */ |
| public void setReplacementString(String replacementString) { |
| Assert.isNotNull(replacementString); |
| fReplacementString= replacementString; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension3#getReplacementText() |
| */ |
| public CharSequence getPrefixCompletionText(IDocument document, int completionOffset) { |
| if (!isCamelCaseMatching()) |
| return getReplacementString(); |
| |
| String prefix= getPrefix(document, completionOffset); |
| return getCamelCaseCompound(prefix, getReplacementString()); |
| } |
| |
| /* |
| * @see ICompletionProposal#getImage() |
| */ |
| public Image getImage() { |
| return fImage; |
| } |
| |
| /** |
| * Sets the image. |
| * @param image The image to set |
| */ |
| public void setImage(Image image) { |
| fImage= image; |
| } |
| |
| /* |
| * @see ICompletionProposalExtension#isValidFor(IDocument, int) |
| */ |
| public boolean isValidFor(IDocument document, int offset) { |
| return validate(document, offset, null); |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#validate(org.eclipse.jface.text.IDocument, int, org.eclipse.jface.text.DocumentEvent) |
| */ |
| public boolean validate(IDocument document, int offset, DocumentEvent event) { |
| |
| if (offset < getReplacementOffset()) |
| return false; |
| |
| boolean validated= isValidPrefix(getPrefix(document, offset)); |
| |
| if (validated && event != null) { |
| // adapt replacement range to document change |
| int delta= (event.fText == null ? 0 : event.fText.length()) - event.fLength; |
| final int newLength= Math.max(getReplacementLength() + delta, 0); |
| setReplacementLength(newLength); |
| } |
| |
| return validated; |
| } |
| |
| /** |
| * Checks whether <code>prefix</code> is a valid prefix for this proposal. Usually, while code |
| * completion is in progress, the user types and edits the prefix in the document in order to |
| * filter the proposal list. From {@link #validate(IDocument, int, DocumentEvent) }, the |
| * current prefix in the document is extracted and this method is called to find out whether the |
| * proposal is still valid. |
| * <p> |
| * The default implementation checks if <code>prefix</code> is a prefix of the proposal's |
| * {@link #getDisplayString() display string} using the {@link #isPrefix(String, String) } |
| * method. |
| * </p> |
| * |
| * @param prefix the current prefix in the document |
| * @return <code>true</code> if <code>prefix</code> is a valid prefix of this proposal |
| */ |
| protected boolean isValidPrefix(String prefix) { |
| /* |
| * See http://dev.eclipse.org/bugs/show_bug.cgi?id=17667 |
| * why we do not use the replacement string. |
| * String word= fReplacementString; |
| */ |
| return isPrefix(prefix, getDisplayString()); |
| } |
| |
| /** |
| * Gets the proposal's relevance. |
| * @return Returns a int |
| */ |
| public int getRelevance() { |
| return fRelevance; |
| } |
| |
| /** |
| * Sets the proposal's relevance. |
| * @param relevance The relevance to set |
| */ |
| public void setRelevance(int relevance) { |
| fRelevance= relevance; |
| } |
| |
| /** |
| * Returns the text in <code>document</code> from {@link #getReplacementOffset()} to |
| * <code>offset</code>. Returns the empty string if <code>offset</code> is before the |
| * replacement offset or if an exception occurs when accessing the document. |
| * |
| * @since 3.2 |
| */ |
| protected String getPrefix(IDocument document, int offset) { |
| try { |
| int length= offset - getReplacementOffset(); |
| if (length > 0) |
| return document.get(getReplacementOffset(), length); |
| } catch (BadLocationException x) { |
| } |
| return ""; //$NON-NLS-1$ |
| } |
| |
| /** |
| * Case insensitive comparison of <code>prefix</code> with the start of <code>string</code>. |
| * Returns <code>false</code> if <code>prefix</code> is longer than <code>string</code> |
| * |
| * @since 3.2 |
| */ |
| protected boolean isPrefix(String prefix, String string) { |
| if (prefix == null || string ==null || prefix.length() > string.length()) |
| return false; |
| String start= string.substring(0, prefix.length()); |
| return start.equalsIgnoreCase(prefix) || isCamelCaseMatching() && CharOperation.camelCaseMatch(prefix.toCharArray(), string.toCharArray()); |
| } |
| |
| /** |
| * Matches <code>prefix</code> against <code>string</code> and replaces the matched region |
| * by prefix. Case is preserved as much as possible. This method returns <code>string</code> if camel case completion |
| * is disabled. Examples when camel case completion is enabled: |
| * <ul> |
| * <li>getCamelCompound("NuPo", "NullPointerException") -> "NuPointerException"</li> |
| * <li>getCamelCompound("NuPoE", "NullPointerException") -> "NuPoException"</li> |
| * <li>getCamelCompound("hasCod", "hashCode") -> "hasCode"</li> |
| * </ul> |
| * |
| * @param prefix the prefix to match against |
| * @param string the string to match |
| * @return a compound of prefix and any postfix taken from <code>string</code> |
| * @since 3.2 |
| */ |
| protected final String getCamelCaseCompound(String prefix, String string) { |
| if (prefix.length() > string.length()) |
| return string; |
| |
| // a normal prefix - no camel case logic at all |
| String start= string.substring(0, prefix.length()); |
| if (start.equalsIgnoreCase(prefix)) |
| return string; |
| |
| final char[] patternChars= prefix.toCharArray(); |
| final char[] stringChars= string.toCharArray(); |
| |
| for (int i= 1; i <= stringChars.length; i++) |
| if (CharOperation.camelCaseMatch(patternChars, 0, patternChars.length, stringChars, 0, i)) |
| return prefix + string.substring(i); |
| |
| // Not a camel case match at all. |
| // This should not happen -> stay with the default behavior |
| return string; |
| } |
| |
| /** |
| * Returns true if camel case matching is enabled. |
| * |
| * @since 3.2 |
| */ |
| protected boolean isCamelCaseMatching() { |
| IJavaProject project= getProject(); |
| String value; |
| if (project == null) |
| value= JavaCore.getOption(JavaCore.CODEASSIST_CAMEL_CASE_MATCH); |
| else |
| value= project.getOption(JavaCore.CODEASSIST_CAMEL_CASE_MATCH, true); |
| |
| return JavaCore.ENABLED.equals(value); |
| } |
| |
| private IJavaProject getProject() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| |
| private static boolean insertCompletion() { |
| IPreferenceStore preference= PreferenceConstants.getPreferenceStore(); |
| return preference.getBoolean(PreferenceConstants.CODEASSIST_INSERT_COMPLETION); |
| } |
| |
| private static Color getForegroundColor(StyledText text) { |
| |
| IPreferenceStore preference= PreferenceConstants.getPreferenceStore(); |
| RGB rgb= PreferenceConverter.getColor(preference, PreferenceConstants.CODEASSIST_REPLACEMENT_FOREGROUND); |
| return JavaUI.getColorManager().getColor(rgb); |
| } |
| |
| private static Color getBackgroundColor(StyledText text) { |
| |
| IPreferenceStore preference= PreferenceConstants.getPreferenceStore(); |
| RGB rgb= PreferenceConverter.getColor(preference, PreferenceConstants.CODEASSIST_REPLACEMENT_BACKGROUND); |
| return JavaUI.getColorManager().getColor(rgb); |
| } |
| |
| private void repairPresentation(ITextViewer viewer) { |
| if (fRememberedStyleRange != null) { |
| if (viewer instanceof ITextViewerExtension2) { |
| // attempts to reduce the redraw area |
| ITextViewerExtension2 viewer2= (ITextViewerExtension2) viewer; |
| |
| if (viewer instanceof ITextViewerExtension5) { |
| |
| ITextViewerExtension5 extension= (ITextViewerExtension5) viewer; |
| IRegion modelRange= extension.widgetRange2ModelRange(new Region(fRememberedStyleRange.start, fRememberedStyleRange.length)); |
| if (modelRange != null) |
| viewer2.invalidateTextPresentation(modelRange.getOffset(), modelRange.getLength()); |
| |
| } else { |
| viewer2.invalidateTextPresentation(fRememberedStyleRange.start + viewer.getVisibleRegion().getOffset(), fRememberedStyleRange.length); |
| } |
| |
| } else |
| viewer.invalidateTextPresentation(); |
| } |
| } |
| |
| private void updateStyle(ITextViewer viewer) { |
| |
| StyledText text= viewer.getTextWidget(); |
| if (text == null || text.isDisposed()) |
| return; |
| |
| int widgetCaret= text.getCaretOffset(); |
| |
| int modelCaret= 0; |
| if (viewer instanceof ITextViewerExtension5) { |
| ITextViewerExtension5 extension= (ITextViewerExtension5) viewer; |
| modelCaret= extension.widgetOffset2ModelOffset(widgetCaret); |
| } else { |
| IRegion visibleRegion= viewer.getVisibleRegion(); |
| modelCaret= widgetCaret + visibleRegion.getOffset(); |
| } |
| |
| if (modelCaret >= getReplacementOffset() + getReplacementLength()) { |
| repairPresentation(viewer); |
| return; |
| } |
| |
| int offset= widgetCaret; |
| int length= getReplacementOffset() + getReplacementLength() - modelCaret; |
| |
| Color foreground= getForegroundColor(text); |
| Color background= getBackgroundColor(text); |
| |
| StyleRange range= text.getStyleRangeAtOffset(offset); |
| int fontStyle= range != null ? range.fontStyle : SWT.NORMAL; |
| |
| repairPresentation(viewer); |
| fRememberedStyleRange= new StyleRange(offset, length, foreground, background, fontStyle); |
| if (range != null) { |
| fRememberedStyleRange.strikeout= range.strikeout; |
| fRememberedStyleRange.underline= range.underline; |
| } |
| |
| // http://dev.eclipse.org/bugs/show_bug.cgi?id=34754 |
| try { |
| text.setStyleRange(fRememberedStyleRange); |
| } catch (IllegalArgumentException x) { |
| // catching exception as offset + length might be outside of the text widget |
| fRememberedStyleRange= null; |
| } |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#selected(ITextViewer, boolean) |
| */ |
| public void selected(ITextViewer viewer, boolean smartToggle) { |
| if (!insertCompletion() ^ smartToggle) |
| updateStyle(viewer); |
| else { |
| repairPresentation(viewer); |
| fRememberedStyleRange= null; |
| } |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#unselected(ITextViewer) |
| */ |
| public void unselected(ITextViewer viewer) { |
| repairPresentation(viewer); |
| fRememberedStyleRange= null; |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension3#getInformationControlCreator() |
| */ |
| public IInformationControlCreator getInformationControlCreator() { |
| // if (!BrowserInformationControl.isAvailable(null)) |
| // return null; |
| // |
| // if (fCreator == null) { |
| // fCreator= new AbstractReusableInformationControlCreator() { |
| // |
| // /* |
| // * @see org.eclipse.jdt.internal.ui.text.java.hover.AbstractReusableInformationControlCreator#doCreateInformationControl(org.eclipse.swt.widgets.Shell) |
| // */ |
| // public IInformationControl doCreateInformationControl(Shell parent) { |
| // return new BrowserInformationControl(parent, SWT.NO_TRIM | SWT.TOOL, SWT.NONE, null); |
| // } |
| // }; |
| // } |
| // return fCreator; |
| return null; |
| } |
| |
| public String getSortString() { |
| return fSortString; |
| } |
| |
| protected void setSortString(String string) { |
| fSortString= string; |
| } |
| |
| protected ITextViewer getTextViewer() { |
| return fTextViewer; |
| } |
| |
| protected boolean isToggleEating() { |
| return fToggleEating; |
| } |
| |
| /** |
| * Sets up a simple linked mode at {@link #getCursorPosition()} and an exit policy that will |
| * exit the mode when <code>closingCharacter</code> is typed and an exit position at |
| * <code>getCursorPosition() + 1</code>. |
| * |
| * @param document the document |
| * @param closingCharacter the exit character |
| */ |
| protected void setUpLinkedMode(IDocument document, char closingCharacter) { |
| if (getTextViewer() != null && autocloseBrackets()) { |
| int offset= getReplacementOffset() + getCursorPosition(); |
| int exit= getReplacementOffset() + getReplacementString().length(); |
| try { |
| LinkedPositionGroup group= new LinkedPositionGroup(); |
| group.addPosition(new LinkedPosition(document, offset, 0, LinkedPositionGroup.NO_STOP)); |
| |
| LinkedModeModel model= new LinkedModeModel(); |
| model.addGroup(group); |
| model.forceInstall(); |
| |
| LinkedModeUI ui= new EditorLinkedModeUI(model, getTextViewer()); |
| ui.setSimpleMode(true); |
| ui.setExitPolicy(new ExitPolicy(closingCharacter, document)); |
| ui.setExitPosition(getTextViewer(), exit, 0, Integer.MAX_VALUE); |
| ui.setCyclingMode(LinkedModeUI.CYCLE_NEVER); |
| ui.enter(); |
| } catch (BadLocationException x) { |
| x.printStackTrace(); |
| } |
| } |
| } |
| |
| protected boolean autocloseBrackets() { |
| IPreferenceStore preferenceStore= PreferenceConstants.getPreferenceStore(); |
| return preferenceStore.getBoolean(PreferenceConstants.EDITOR_CLOSE_BRACKETS); |
| } |
| |
| protected void setDisplayString(String string) { |
| fDisplayString= string; |
| } |
| |
| /* |
| * @see java.lang.Object#toString() |
| */ |
| public String toString() { |
| return getDisplayString(); |
| } |
| |
| /** |
| * Returns the java element proposed by the receiver, possibly <code>null</code>. |
| * |
| * @return the java element proposed by the receiver, possibly <code>null</code> |
| */ |
| public IJavaElement getJavaElement() { |
| // if (getProposalInfo() != null) |
| // try { |
| // return getProposalInfo().getJavaElement(); |
| // } catch (JavaModelException x) { |
| // JavaPlugin.log(x); |
| // } |
| return null; |
| } |
| } |