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fix sebastianbenz#24 ToekTypePartitioning for richstrings
When doubleclicking a word inside a richstring the whole richstring was selected by the editor. After binding the correct ITokenTypeToPartioningTypeMapper and an appropriate DoubleClickStrategy Richstring-Tokens are handled by finding selecting the word under the courser, instead of selecting the whole token.
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134 changes: 134 additions & 0 deletions
134
...org/jnario/xbase/richstring/ui/editor/XbaseWithRichstringDoubleClickStrategyProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| package org.jnario.xbase.richstring.ui.editor; | ||
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| import org.eclipse.jface.text.BadLocationException; | ||
| import org.eclipse.jface.text.IDocument; | ||
| import org.eclipse.jface.text.IRegion; | ||
| import org.eclipse.jface.text.ITextDoubleClickStrategy; | ||
| import org.eclipse.jface.text.ITypedRegion; | ||
| import org.eclipse.jface.text.Region; | ||
| import org.eclipse.jface.text.source.ISourceViewer; | ||
| import org.eclipse.xtext.ui.editor.doubleClicking.AbstractPartitionDoubleClickSelector; | ||
| import org.eclipse.xtext.ui.editor.doubleClicking.DoubleClickStrategyProvider; | ||
| import org.eclipse.xtext.ui.editor.model.CommonBreakIterator; | ||
| import org.jnario.xbase.richstring.ui.autoedit.TokenTypeToPartitionMapper; | ||
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| /** | ||
| * Double click strategy that is aware of rich string partitions. | ||
| * | ||
| * @author Sebastian Zarnekow - Initial contribution and API | ||
| */ | ||
| public class XbaseWithRichstringDoubleClickStrategyProvider extends DoubleClickStrategyProvider { | ||
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| @Override | ||
| public ITextDoubleClickStrategy getStrategy(ISourceViewer sourceViewer, String contentType, | ||
| String documentPartitioning) { | ||
| if (TokenTypeToPartitionMapper.RICH_STRING_LITERAL_PARTITION.equals(contentType)) { | ||
| return new AbstractPartitionDoubleClickSelector(documentPartitioning) { | ||
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| @Override | ||
| protected IRegion getSelectedRegion(IDocument document, ITypedRegion completePartition) | ||
| throws BadLocationException { | ||
| String content = document.get(completePartition.getOffset(), completePartition.getLength()); | ||
| int trimLeft = 1; // assume « as start character | ||
| if (content.startsWith("'''")) { | ||
| trimLeft = 3; | ||
| } | ||
| int trimRight = 0; | ||
| if (content.endsWith("'''")) { | ||
| trimRight = 3; | ||
| } else if (content.endsWith("''")) { | ||
| trimRight = 2; | ||
| } else if (content.endsWith("'") || content.endsWith("\u00AB")) { | ||
| trimRight = 1; | ||
| } | ||
| return new Region(completePartition.getOffset() + trimLeft, completePartition.getLength() - trimLeft - trimRight); | ||
| } | ||
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| }; | ||
| } | ||
| if (TokenTypeToPartitionMapper.JAVA_DOC_PARTITION.equals(contentType)) { | ||
| return new AbstractPartitionDoubleClickSelector(documentPartitioning) { | ||
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| /** | ||
| * Allows to select the complete <code>@param</code> instead of just the literal <code>param</code>. | ||
| * Copied from org.eclipse.jdt.internal.ui.text.java.JavadocDoubleClickStrategy. | ||
| */ | ||
| @Override | ||
| protected IRegion findExtendedDoubleClickSelection(IDocument document, int position) { | ||
| try { | ||
| IRegion match = super.findExtendedDoubleClickSelection(document, position); | ||
| if (match != null) | ||
| return match; | ||
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| IRegion word = findWord(document, position); | ||
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| IRegion line = document.getLineInformationOfOffset(position); | ||
| if (position == line.getOffset() + line.getLength()) | ||
| return null; | ||
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| int start = word.getOffset(); | ||
| int end = start + word.getLength(); | ||
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| if (start > 0 | ||
| && document.getChar(start - 1) == '@' | ||
| && Character.isJavaIdentifierPart(document.getChar(start)) | ||
| && (start == 1 || Character.isWhitespace(document.getChar(start - 2)) || document.getChar(start - 2) == '{')) { | ||
| // double click after @ident | ||
| start--; | ||
| } else if (end == position | ||
| && end == start + 1 | ||
| && end < line.getOffset() + line.getLength() | ||
| && document.getChar(end) == '@') { | ||
| // double click before " @ident" | ||
| return findExtendedDoubleClickSelection(document, position + 1); | ||
| } | ||
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| if (start == end) | ||
| return null; | ||
| return new Region(start, end - start); | ||
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| } catch (BadLocationException x) { | ||
| return null; | ||
| } | ||
| } | ||
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| @Override | ||
| protected CommonBreakIterator createBreakIterator() { | ||
| return new CommonBreakIterator(false) { | ||
| class Braces extends Other { | ||
| @Override | ||
| protected boolean isValid(char ch) { | ||
| return ch == '{' || ch == '}'; | ||
| } | ||
| } | ||
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| class Parentheses extends Other { | ||
| @Override | ||
| protected boolean isValid(char ch) { | ||
| return ch == '(' || ch == ')'; | ||
| } | ||
| } | ||
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| Braces braces = new Braces(); | ||
| Parentheses parentheses = new Parentheses(); | ||
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| @Override | ||
| protected Run getRun(char ch) { | ||
| if (braces.isValid(ch)) { | ||
| return braces; | ||
| } | ||
| if (parentheses.isValid(ch)) { | ||
| return parentheses; | ||
| } | ||
| return super.getRun(ch); | ||
| } | ||
| }; | ||
| } | ||
| }; | ||
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| } | ||
| return super.getStrategy(sourceViewer, contentType, documentPartitioning); | ||
| } | ||
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| } |