Added state reset
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / PHPSourceViewerConfiguration.java
index abea8df..a39d5bb 100644 (file)
@@ -11,9 +11,25 @@ Contributors:
 **********************************************************************/
 package net.sourceforge.phpeclipse.phpeditor;
 
-import java.util.List;
+import java.util.Vector;
 
-import org.eclipse.swt.graphics.RGB;
+import net.sourceforge.phpdt.internal.ui.text.ContentAssistPreference;
+import net.sourceforge.phpdt.internal.ui.text.JavaColorManager;
+import net.sourceforge.phpdt.internal.ui.text.java.JavaFormattingStrategy;
+import net.sourceforge.phpdt.internal.ui.text.phpdoc.PHPDocCompletionProcessor;
+import net.sourceforge.phpdt.ui.PreferenceConstants;
+import net.sourceforge.phpdt.ui.text.JavaTextTools;
+import net.sourceforge.phpeclipse.PHPCore;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+import net.sourceforge.phpeclipse.phpeditor.html.HTMLFormattingStrategy;
+import net.sourceforge.phpeclipse.phpeditor.php.HTMLCompletionProcessor;
+import net.sourceforge.phpeclipse.phpeditor.php.IPHPPartitionScannerConstants;
+import net.sourceforge.phpeclipse.phpeditor.php.PHPAutoIndentStrategy;
+import net.sourceforge.phpeclipse.phpeditor.php.PHPCompletionProcessor;
+import net.sourceforge.phpeclipse.phpeditor.php.PHPDoubleClickSelector;
+import net.sourceforge.phpeclipse.phpeditor.util.PHPColorProvider;
+
+import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.text.DefaultAutoIndentStrategy;
 import org.eclipse.jface.text.IAutoIndentStrategy;
 import org.eclipse.jface.text.IDocument;
@@ -21,148 +37,426 @@ import org.eclipse.jface.text.ITextDoubleClickStrategy;
 import org.eclipse.jface.text.ITextHover;
 import org.eclipse.jface.text.TextAttribute;
 import org.eclipse.jface.text.contentassist.ContentAssistant;
+import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
 import org.eclipse.jface.text.contentassist.IContentAssistant;
+import org.eclipse.jface.text.formatter.ContentFormatter;
+import org.eclipse.jface.text.formatter.IContentFormatter;
+import org.eclipse.jface.text.formatter.IFormattingStrategy;
 import org.eclipse.jface.text.presentation.IPresentationReconciler;
 import org.eclipse.jface.text.presentation.PresentationReconciler;
 import org.eclipse.jface.text.rules.BufferedRuleBasedScanner;
 import org.eclipse.jface.text.rules.DefaultDamagerRepairer;
-import org.eclipse.jface.text.rules.IToken;
-import org.eclipse.jface.text.rules.RuleBasedDamagerRepairer;
+import org.eclipse.jface.text.rules.DefaultPartitioner;
+import org.eclipse.jface.text.rules.RuleBasedScanner;
 import org.eclipse.jface.text.rules.Token;
 import org.eclipse.jface.text.source.IAnnotationHover;
 import org.eclipse.jface.text.source.ISourceViewer;
 import org.eclipse.jface.text.source.SourceViewerConfiguration;
-import net.sourceforge.phpeclipse.phpeditor.php.PHPAutoIndentStrategy;
-import net.sourceforge.phpeclipse.phpeditor.php.PHPCompletionProcessor;
-import net.sourceforge.phpeclipse.phpeditor.php.PHPDoubleClickSelector;
-import net.sourceforge.phpeclipse.phpeditor.php.PHPPartitionScanner;
-//import net.sourceforge.phpeclipse.phpeditor.html.JavaDocCompletionProcessor;
-import net.sourceforge.phpeclipse.phpeditor.util.PHPColorProvider;
 
 /**
- * Configuration for an <code>SourceViewer</code> which shows PHP code.
+ * Configuration for an <code>SourceViewer</code> which shows PHP code. 
  */
-public class PHPSourceViewerConfiguration extends SourceViewerConfiguration {
-
-  /**
-   * Single token scanner.
-   */
-  static class SingleTokenScanner extends BufferedRuleBasedScanner {
-    public SingleTokenScanner(TextAttribute attribute) {
-      setDefaultReturnToken(new Token(attribute));
-    }
-  };
-
-  /**
-   * Default constructor.
-   */
-  public PHPSourceViewerConfiguration() {
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public IAnnotationHover getAnnotationHover(ISourceViewer sourceViewer) {
-    return new PHPAnnotationHover();
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public IAutoIndentStrategy getAutoIndentStrategy(ISourceViewer sourceViewer, String contentType) {
-    return (IDocument.DEFAULT_CONTENT_TYPE.equals(contentType) ? new PHPAutoIndentStrategy() : new DefaultAutoIndentStrategy());
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
-    return new String[] { IDocument.DEFAULT_CONTENT_TYPE, PHPPartitionScanner.PHP,
-      //       PHPPartitionScanner.JAVA_DOC,
-      PHPPartitionScanner.HTML_MULTILINE_COMMENT };
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {
-
-    ContentAssistant assistant = new ContentAssistant();
-    // assistant.setContentAssistProcessor(new PHPCompletionProcessor(), IDocument.DEFAULT_CONTENT_TYPE);
-    assistant.setContentAssistProcessor(new PHPCompletionProcessor(), PHPPartitionScanner.PHP);
-
-    assistant.enableAutoActivation(true);
-    assistant.setAutoActivationDelay(500);
-    assistant.setProposalPopupOrientation(assistant.PROPOSAL_OVERLAY);
-    assistant.setContextInformationPopupOrientation(assistant.CONTEXT_INFO_ABOVE);
-    assistant.setContextInformationPopupBackground(PHPEditorEnvironment.getJavaColorProvider().getColor(new RGB(150, 150, 0)));
-
-    return assistant;
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public String getDefaultPrefix(ISourceViewer sourceViewer, String contentType) {
-    return (IDocument.DEFAULT_CONTENT_TYPE.equals(contentType) ? "//" : null); //$NON-NLS-1$
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public ITextDoubleClickStrategy getDoubleClickStrategy(ISourceViewer sourceViewer, String contentType) {
-    return new PHPDoubleClickSelector();
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public String[] getIndentPrefixes(ISourceViewer sourceViewer, String contentType) {
-    return new String[] { "\t", "    " }; //$NON-NLS-1$ //$NON-NLS-2$
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public IPresentationReconciler getPresentationReconciler(ISourceViewer sourceViewer) {
-
-    PHPColorProvider provider = PHPEditorEnvironment.getJavaColorProvider();
-    PresentationReconciler reconciler = new PresentationReconciler();
-    
-    DefaultDamagerRepairer dr= new DefaultDamagerRepairer(PHPEditorEnvironment.getHTMLCodeScanner());
-    reconciler.setDamager(dr, IDocument.DEFAULT_CONTENT_TYPE);
-    reconciler.setRepairer(dr, IDocument.DEFAULT_CONTENT_TYPE);
-    
-//    dr = new DefaultDamagerRepairer(new SingleTokenScanner(new TextAttribute(provider.getColor(provider.HTML_DEFAULT))));
-//    reconciler.setDamager(dr, IDocument.DEFAULT_CONTENT_TYPE);
-//    reconciler.setRepairer(dr, IDocument.DEFAULT_CONTENT_TYPE);
-
-    dr = new DefaultDamagerRepairer(PHPEditorEnvironment.getPHPCodeScanner());
-    reconciler.setDamager(dr, PHPPartitionScanner.PHP);
-    reconciler.setRepairer(dr, PHPPartitionScanner.PHP);
-
-//    dr = new DefaultDamagerRepairer(PHPEditorEnvironment.getHTMLCodeScanner());
-//    reconciler.setDamager(dr, PHPPartitionScanner.HTML);
-//    reconciler.setRepairer(dr, PHPPartitionScanner.HTML);
-
-    dr = new DefaultDamagerRepairer(new SingleTokenScanner(new TextAttribute(provider.getColor(provider.MULTI_LINE_COMMENT))));
-    reconciler.setDamager(dr, PHPPartitionScanner.HTML_MULTILINE_COMMENT);
-    reconciler.setRepairer(dr, PHPPartitionScanner.HTML_MULTILINE_COMMENT);
-
-    return reconciler;
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public int getTabWidth(ISourceViewer sourceViewer) {
-    return 4;
-  }
-
-  /* (non-Javadoc)
-   * Method declared on SourceViewerConfiguration
-   */
-  public ITextHover getTextHover(ISourceViewer sourceViewer, String contentType) {
-    return new PHPTextHover();
-  }
+public class PHPSourceViewerConfiguration extends SourceViewerConfiguration
+{
+
+    /** 
+     * Preference key used to look up display tab width.
+     * 
+     * @since 2.0
+     */
+    public final static String PREFERENCE_TAB_WIDTH =
+        PreferenceConstants.EDITOR_TAB_WIDTH;
+    /** 
+     * Preference key for inserting spaces rather than tabs.
+     * 
+     * @since 2.0
+     */
+    public final static String SPACES_FOR_TABS =
+        PreferenceConstants.EDITOR_SPACES_FOR_TABS;
+
+    //  public static final String HTML_DEFAULT = IPHPPartitionScannerConstants.HTML;
+    //IDocument.DEFAULT_CONTENT_TYPE;
+
+    private JavaTextTools fJavaTextTools;
+    private PHPEditor fEditor;
+
+    private ContentFormatter fFormatter;
+    private HTMLFormattingStrategy fFormattingStrategy;
+    /**
+     * Single token scanner.
+     */
+    static class SingleTokenScanner extends BufferedRuleBasedScanner
+    {
+        public SingleTokenScanner(TextAttribute attribute)
+        {
+            setDefaultReturnToken(new Token(attribute));
+        }
+    };
+
+    /**
+     * Default constructor.
+     */
+    public PHPSourceViewerConfiguration(
+        JavaTextTools textTools,
+        PHPEditor editor)
+    {
+        fJavaTextTools = textTools;
+        fEditor = editor;
+    }
+
+    /*
+     * @see SourceViewerConfiguration#getContentFormatter(ISourceViewer)
+     */
+    public IContentFormatter getContentFormatter(ISourceViewer sourceViewer)
+    {
+        //    if (fFormatter == null) {
+        //      fFormatter = new ContentFormatter();
+        //      fFormattingStrategy = new HTMLFormattingStrategy(this, sourceViewer);
+        //      fFormatter.setFormattingStrategy(fFormattingStrategy, HTML_DEFAULT);
+        //      fFormatter.enablePartitionAwareFormatting(false);
+        //      fFormatter.setPartitionManagingPositionCategories(getConfiguredContentTypes(null));
+        //    }
+        //    return fFormatter;
+
+        if (fFormatter == null)
+        {
+            //ContentFormatter 
+            fFormatter = new ContentFormatter();
+            IFormattingStrategy strategy =
+                new JavaFormattingStrategy(sourceViewer);
+
+            fFormatter.setFormattingStrategy(
+                strategy,
+                IDocument.DEFAULT_CONTENT_TYPE);
+            fFormatter.enablePartitionAwareFormatting(false);
+            fFormatter.setPartitionManagingPositionCategories(
+                getPartitionManagingPositionCategories());
+        }
+        return fFormatter;
+    }
+
+    /**
+     * Returns the names of the document position categories used by the document
+     * partitioners created by this object to manage their partition information.
+     * If the partitioners don't use document position categories, the returned
+     * result is <code>null</code>.
+     *
+     * @return the partition managing position categories or <code>null</code> 
+     *                         if there is none
+     */
+    public String[] getPartitionManagingPositionCategories()
+    {
+        return new String[] { DefaultPartitioner.CONTENT_TYPES_CATEGORY };
+    }
+    //  /** 
+    //   * Returns the names of the document position categories used by the document
+    //   * partitioners created by this object to manage their partition information.
+    //   * If the partitioners don't use document position categories, the returned
+    //   * result is <code>null</code>.
+    //   *
+    //   * @return the partition managing position categories or <code>null</code> 
+    //   *                     if there is none
+    //   */
+    //  private String[] getPartitionManagingPositionCategories() {
+    //    return new String[] { DefaultPartitioner.CONTENT_TYPES_CATEGORY };
+    //  } 
+
+    public PHPEditor getEditor()
+    {
+        return fEditor;
+    }
+
+    /**
+     * Returns the preference store used by this configuration to initialize
+     * the individual bits and pieces.
+     * 
+     * @return the preference store used to initialize this configuration
+     * 
+     * @since 2.0
+     */
+    protected IPreferenceStore getPreferenceStore()
+    {
+        return PHPeclipsePlugin.getDefault().getPreferenceStore();
+    }
+
+    /* (non-Javadoc)
+     * Method declared on SourceViewerConfiguration
+     */
+    public IAnnotationHover getAnnotationHover(ISourceViewer sourceViewer)
+    {
+        return new PHPAnnotationHover();
+    }
+
+    /* (non-Javadoc)
+     * Method declared on SourceViewerConfiguration
+     */
+    public IAutoIndentStrategy getAutoIndentStrategy(
+        ISourceViewer sourceViewer,
+        String contentType)
+    {
+        return (
+            IPHPPartitionScannerConstants.PHP.equals(contentType)
+                ? new PHPAutoIndentStrategy()
+                : new DefaultAutoIndentStrategy());
+    }
+
+    /**
+     * Returns the PHP source code scanner for this configuration.
+     *
+     * @return the PHP source code scanner
+     */
+    protected RuleBasedScanner getCodeScanner()
+    {
+        return fJavaTextTools.getCodeScanner();
+    }
+
+    /**
+     * Returns the HTML source code scanner for this configuration.
+     *
+     * @return the HTML source code scanner
+     */
+    protected RuleBasedScanner getHTMLScanner()
+    {
+        return fJavaTextTools.getHTMLScanner();
+    }
+
+    /**
+     * Returns the PHPDoc source code scanner for this configuration.
+     *
+     * @return the PHPDoc source code scanner
+     */
+    protected RuleBasedScanner getPHPDocScanner()
+    {
+        return fJavaTextTools.getJavaDocScanner();
+    }
+
+    /* (non-Javadoc)
+     * Method declared on SourceViewerConfiguration
+     */
+    public String[] getConfiguredContentTypes(ISourceViewer sourceViewer)
+    {
+        return new String[] {
+            IPHPPartitionScannerConstants.HTML,
+            IPHPPartitionScannerConstants.HTML_MULTILINE_COMMENT,
+            IPHPPartitionScannerConstants.PHP,
+            IPHPPartitionScannerConstants.PHP_MULTILINE_COMMENT,
+            IPHPPartitionScannerConstants.CSS,
+            IPHPPartitionScannerConstants.CSS_MULTILINE_COMMENT,
+            IPHPPartitionScannerConstants.JAVASCRIPT,
+            IPHPPartitionScannerConstants.JS_MULTILINE_COMMENT,
+            IDocument.DEFAULT_CONTENT_TYPE };
+    }
+
+    /* (non-Javadoc) 
+     * Method declared on SourceViewerConfiguration
+     */
+    public IContentAssistant getContentAssistant(ISourceViewer sourceViewer)
+    {
+
+        ContentAssistant assistant = new ContentAssistant();
+        IContentAssistProcessor processor = new HTMLCompletionProcessor();
+        assistant.setContentAssistProcessor(
+            processor,
+            IPHPPartitionScannerConstants.HTML);
+        assistant.setContentAssistProcessor(
+            processor,
+            IPHPPartitionScannerConstants.HTML_MULTILINE_COMMENT);
+        assistant.setContentAssistProcessor(
+            processor,
+            IDocument.DEFAULT_CONTENT_TYPE);
+        assistant.setContentAssistProcessor(
+            processor,
+            IPHPPartitionScannerConstants.CSS);
+        assistant.setContentAssistProcessor(
+            processor,
+            IPHPPartitionScannerConstants.CSS_MULTILINE_COMMENT);
+        assistant.setContentAssistProcessor(
+            processor,
+            IPHPPartitionScannerConstants.JAVASCRIPT);
+        assistant.setContentAssistProcessor(
+            processor,
+            IPHPPartitionScannerConstants.JS_MULTILINE_COMMENT);
+
+        assistant.setContentAssistProcessor(
+            new PHPCompletionProcessor(),
+            IPHPPartitionScannerConstants.PHP);
+
+        assistant.setContentAssistProcessor(
+            new PHPDocCompletionProcessor(),
+            IPHPPartitionScannerConstants.PHP_MULTILINE_COMMENT);
+
+        //    assistant.enableAutoActivation(true);
+        //    assistant.setAutoActivationDelay(500);
+        //    assistant.setProposalPopupOrientation(ContentAssistant.PROPOSAL_OVERLAY);
+        //    ContentAssistPreference.configure(assistant, getPreferenceStore());
+        //    assistant.setContextInformationPopupOrientation(
+        //      ContentAssistant.CONTEXT_INFO_ABOVE);
+        //    assistant.setContextInformationPopupBackground(
+        //      PHPEditorEnvironment.getPHPColorProvider().getColor(
+        //        new RGB(150, 150, 0)));
+        ContentAssistPreference.configure(assistant, getPreferenceStore());
+
+        assistant.setContextInformationPopupOrientation(
+            ContentAssistant.CONTEXT_INFO_ABOVE);
+        assistant.setInformationControlCreator(
+            getInformationControlCreator(sourceViewer));
+
+        return assistant;
+    }
+
+    /* (non-Javadoc)
+     * Method declared on SourceViewerConfiguration
+     */
+    //  public String getDefaultPrefix(ISourceViewer sourceViewer, String contentType) {
+    //    return (PHPPartitionScanner.PHP.equals(contentType) ? "//" : null); //$NON-NLS-1$
+    //    // return (IDocument.DEFAULT_CONTENT_TYPE.equals(contentType) ? "//" : null); //$NON-NLS-1$
+    //  }
+
+    /*
+     * @see SourceViewerConfiguration#getDefaultPrefix(ISourceViewer, String)
+     * @since 2.0
+     */
+    public String[] getDefaultPrefixes(
+        ISourceViewer sourceViewer,
+        String contentType)
+    {
+        return new String[] { "//", "" }; //$NON-NLS-1$ //$NON-NLS-2$
+    }
+
+    /* (non-Javadoc)
+     * Method declared on SourceViewerConfiguration
+     */
+    public ITextDoubleClickStrategy getDoubleClickStrategy(
+        ISourceViewer sourceViewer,
+        String contentType)
+    {
+        return new PHPDoubleClickSelector();
+    }
+
+    /*
+     * @see SourceViewerConfiguration#getIndentPrefixes(ISourceViewer, String)
+     */
+    public String[] getIndentPrefixes(
+        ISourceViewer sourceViewer,
+        String contentType)
+    {
+
+        Vector vector = new Vector();
+
+        // prefix[0] is either '\t' or ' ' x tabWidth, depending on useSpaces
+
+        final IPreferenceStore preferences =
+            PHPeclipsePlugin.getDefault().getPreferenceStore();
+        int tabWidth = preferences.getInt(PHPCore.FORMATTER_TAB_SIZE);
+        boolean useSpaces = getPreferenceStore().getBoolean(SPACES_FOR_TABS);
+
+        for (int i = 0; i <= tabWidth; i++)
+        {
+            StringBuffer prefix = new StringBuffer();
+
+            if (useSpaces)
+            {
+                for (int j = 0; j + i < tabWidth; j++)
+                    prefix.append(' ');
+
+                if (i != 0)
+                    prefix.append('\t');
+            }
+            else
+            {
+                for (int j = 0; j < i; j++)
+                    prefix.append(' ');
+
+                if (i != tabWidth)
+                    prefix.append('\t');
+            }
+
+            vector.add(prefix.toString());
+        }
+
+        vector.add(""); //$NON-NLS-1$
+
+        return (String[]) vector.toArray(new String[vector.size()]);
+    }
+    /* (non-Javadoc)
+     * Method declared on SourceViewerConfiguration
+     */
+    public IPresentationReconciler getPresentationReconciler(ISourceViewer sourceViewer)
+    {
+        //  PHPColorProvider provider = PHPEditorEnvironment.getPHPColorProvider();
+    //    JavaColorManager provider = PHPEditorEnvironment.getPHPColorProvider();
+        PresentationReconciler reconciler = new PresentationReconciler();
+
+        DefaultDamagerRepairer dr =
+            new DefaultDamagerRepairer(getHTMLScanner());
+        reconciler.setDamager(dr, IDocument.DEFAULT_CONTENT_TYPE);
+        reconciler.setRepairer(dr, IDocument.DEFAULT_CONTENT_TYPE);
+
+        dr = new DefaultDamagerRepairer(getHTMLScanner());
+        reconciler.setDamager(dr, IPHPPartitionScannerConstants.HTML);
+        reconciler.setRepairer(dr, IPHPPartitionScannerConstants.HTML);
+        dr = new DefaultDamagerRepairer(getHTMLScanner());
+        reconciler.setDamager(dr, IPHPPartitionScannerConstants.CSS);
+        reconciler.setRepairer(dr, IPHPPartitionScannerConstants.CSS);
+        dr = new DefaultDamagerRepairer(getHTMLScanner());
+        reconciler.setDamager(
+            dr,
+            IPHPPartitionScannerConstants.CSS_MULTILINE_COMMENT);
+        reconciler.setRepairer(
+            dr,
+            IPHPPartitionScannerConstants.CSS_MULTILINE_COMMENT);
+        dr = new DefaultDamagerRepairer(getHTMLScanner());
+        reconciler.setDamager(dr, IPHPPartitionScannerConstants.JAVASCRIPT);
+        reconciler.setRepairer(dr, IPHPPartitionScannerConstants.JAVASCRIPT);
+        dr = new DefaultDamagerRepairer(getHTMLScanner());
+        reconciler.setDamager(
+            dr,
+            IPHPPartitionScannerConstants.JS_MULTILINE_COMMENT);
+        reconciler.setRepairer(
+            dr,
+            IPHPPartitionScannerConstants.JS_MULTILINE_COMMENT);
+        dr = new DefaultDamagerRepairer(
+                new SingleTokenScanner(
+                    new TextAttribute(
+                        fJavaTextTools.getColorManager().getColor(
+                            PHPColorProvider.MULTI_LINE_COMMENT))));
+        reconciler.setDamager(
+            dr,
+            IPHPPartitionScannerConstants.HTML_MULTILINE_COMMENT);
+        reconciler.setRepairer(
+            dr,
+            IPHPPartitionScannerConstants.HTML_MULTILINE_COMMENT);
+
+        dr = new DefaultDamagerRepairer(getCodeScanner());
+        reconciler.setDamager(dr, IPHPPartitionScannerConstants.PHP);
+        reconciler.setRepairer(dr, IPHPPartitionScannerConstants.PHP);
+
+        dr = new DefaultDamagerRepairer(getPHPDocScanner());
+        reconciler.setDamager(
+            dr,
+            IPHPPartitionScannerConstants.PHP_MULTILINE_COMMENT);
+        reconciler.setRepairer(
+            dr,
+            IPHPPartitionScannerConstants.PHP_MULTILINE_COMMENT);
+
+        return reconciler;
+    }
+
+    /* (non-Javadoc)
+     * Method declared on SourceViewerConfiguration
+     */
+    public int getTabWidth(ISourceViewer sourceViewer)
+    {
+        return getPreferenceStore().getInt(PREFERENCE_TAB_WIDTH);
+    }
+
+    /* (non-Javadoc)
+     * Method declared on SourceViewerConfiguration
+     */
+    public ITextHover getTextHover(
+        ISourceViewer sourceViewer,
+        String contentType)
+    {
+        return new PHPTextHover();
+    }
 }