Base implementation of autocomplete #849

Author: ricardojlrufino

app/.classpath

@@ -4,7 +4,6 @@
 	<classpathentry kind="src" path="test"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
 	<classpathentry combineaccessrules="false" kind="src" path="/arduino-core"/>
-	<classpathentry kind="output" path="bin"/>
 	<classpathentry kind="lib" path="lib/apple.jar"/>
 	<classpathentry kind="lib" path="lib/batik-1.8.jar"/>
 	<classpathentry kind="lib" path="lib/batik-anim-1.8.jar"/>
@@ -44,6 +43,7 @@
 	<classpathentry kind="lib" path="lib/jsch-0.1.50.jar"/>
 	<classpathentry kind="lib" path="lib/jssc-2.8.0-arduino1.jar"/>
 	<classpathentry kind="lib" path="lib/rsyntaxtextarea-2.6.1.jar"/>
+	<classpathentry kind="lib" path="lib/autocomplete-2.6.1.jar" sourcepath="/media/ricardo/Dados/Workspace/Arduino/arduino-dep/AutoComplete-2.6.1"/>
 	<classpathentry kind="lib" path="lib/xml-apis-1.3.04.jar"/>
 	<classpathentry kind="lib" path="lib/xml-apis-ext-1.3.04.jar"/>
 	<classpathentry kind="lib" path="lib/xmlgraphics-commons-2.0.jar"/>
@@ -53,4 +53,5 @@
 	<classpathentry kind="lib" path="test-lib/fest-swing-1.2.jar"/>
 	<classpathentry kind="lib" path="test-lib/fest-util-1.1.2.jar"/>
 	<classpathentry kind="lib" path="test-lib/jcip-annotations-1.0.jar"/>
+	<classpathentry kind="output" path="bin"/>
 </classpath>

app/lib/autocomplete-2.6.1.jar

@@ -0,0 +1,44 @@
+package cc.arduino.autocomplete;
+
+import org.fife.ui.autocomplete.CompletionProvider;
+
+import processing.app.Sketch;
+import processing.app.syntax.SketchTextArea;
+
+public class CompletionContext {
+
+  private Sketch sketch;
+
+  private SketchTextArea textArea;
+  
+  private CompletionProvider delegate; // of: AutoComplete/RSyntaxTextArea
+  
+  public CompletionContext(Sketch sketch, SketchTextArea textArea,CompletionProvider delegate) {
+    this.sketch = sketch;
+    this.textArea = textArea;
+    this.delegate = delegate;
+  }
+
+
+  public String getAlreadyEnteredText() {
+    return delegate.getAlreadyEnteredText(textArea);
+  }
+  
+  public int getLineNumber() {
+    return textArea.getCaretLineNumber();
+  }
+
+  
+  public Sketch getSketch() {
+    return sketch;
+  }
+  
+  public SketchTextArea getTextArea() {
+    return textArea;
+  }
+  
+  public CompletionProvider getDelegate() {
+    return delegate;
+  }
+
+}

app/src/cc/arduino/autocomplete/CompletionContext.java

@@ -0,0 +1,11 @@
+package cc.arduino.autocomplete;
+
+import java.util.List;
+
+import org.fife.ui.autocomplete.Completion;
+
+public interface CompletionProvider {
+  
+  List<Completion> getSuggestions(CompletionContext context);
+  
+}

app/src/cc/arduino/autocomplete/CompletionProvider.java

@@ -0,0 +1,22 @@
+package cc.arduino.autocomplete;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import org.fife.ui.autocomplete.BasicCompletion;
+import org.fife.ui.autocomplete.Completion;
+
+public class FakeCompletionProvider implements CompletionProvider {
+  
+
+  @Override
+  public List<Completion> getSuggestions(CompletionContext context) {
+    List<Completion> list = new LinkedList<>();
+    list.add(new BasicCompletion(context.getDelegate(), "Text: " + context.getAlreadyEnteredText()));
+    list.add(new BasicCompletion(context.getDelegate(), "Line: " + context.getLineNumber()));
+
+    return list;
+  }
+  
+
+}

app/src/cc/arduino/autocomplete/FakeCompletionProvider.java

@@ -0,0 +1,36 @@
+package cc.arduino.autocomplete.rsyntax;
+
+import java.util.List;
+
+import javax.swing.text.JTextComponent;
+
+import org.fife.ui.autocomplete.Completion;
+import org.fife.ui.autocomplete.DefaultCompletionProvider;
+
+import cc.arduino.autocomplete.CompletionContext;
+import cc.arduino.autocomplete.CompletionProvider;
+
+public class CompletionProviderBridge extends DefaultCompletionProvider{
+  
+  private CompletionProvider provider;
+  
+  private CompletionContext context;
+  
+  public CompletionProviderBridge(CompletionContext context, CompletionProvider provider) {
+    this.provider = provider;
+    this.context = context;
+  }
+
+
+  @Override
+  public List<Completion> getCompletionsImpl(JTextComponent comp) {
+    return provider.getSuggestions(context);
+    
+  }
+  
+  @Override
+  protected boolean isValidChar(char ch) {
+    return super.isValidChar(ch) || '.' == ch || '>' == ch  || '-' == ch  || '<' == ch || '#' == ch || ':' == ch /**|| getParameterListStart() == ch */;
+  }
+
+}

app/src/cc/arduino/autocomplete/rsyntax/CompletionProviderBridge.java

@@ -0,0 +1,33 @@
+package cc.arduino.autocomplete.rsyntax;
+
+import org.fife.ui.autocomplete.LanguageAwareCompletionProvider;
+
+import cc.arduino.autocomplete.CompletionContext;
+import cc.arduino.autocomplete.CompletionProvider;
+import processing.app.Sketch;
+import processing.app.syntax.SketchTextArea;
+
+
+/**
+ * CompletionProvider for Arduino/CPP Language. <br/>
+ * Setup basic logic for completions using {@link LanguageAwareCompletionProvider}
+ * Filtering and decision will appear in the autocomplete dialog by implementations of: {@link CompletionProvider}. <br/>
+ * 
+ * @author Ricardo JL Rufino (ricardo@criativasoft.com.br)
+ * @date 28/04/2017
+ */
+public class SketchCompletionProvider extends LanguageAwareCompletionProvider{
+  
+  public SketchCompletionProvider(Sketch sketch, SketchTextArea textArea, CompletionProvider provider) {
+
+    CompletionContext context = new CompletionContext(sketch, textArea, this);
+    
+    setDefaultCompletionProvider(new CompletionProviderBridge(context, provider)); 
+//    provider.setParameterChoicesProvider(new ParameterChoicesProvider(this));
+//    provider.setParameterizedCompletionParams('(', ", ", ')');
+    
+  }
+  
+
+  
+}

app/src/cc/arduino/autocomplete/rsyntax/SketchCompletionProvider.java

@@ -66,6 +66,7 @@
 import org.fife.ui.rtextarea.RTextScrollPane;
 
 import cc.arduino.UpdatableBoardsLibsFakeURLsHandler;
+import cc.arduino.autocomplete.FakeCompletionProvider;
 import processing.app.helpers.DocumentTextChangeListener;
 import processing.app.syntax.ArduinoTokenMakerFactory;
 import processing.app.syntax.PdeKeywords;
@@ -120,6 +121,7 @@ public EditorTab(Editor editor, SketchFile file, String contents)
     applyPreferences();
     add(scrollPane, BorderLayout.CENTER);
     textarea.addMouseWheelListener(this);
+    textarea.setupAutoComplete(file.getSketch(), new FakeCompletionProvider());
   }
 
   private RSyntaxDocument createDocument(String contents) {

app/src/processing/app/EditorTab.java

@@ -30,6 +30,10 @@
 
 package processing.app.syntax;
 
+import java.awt.Color;
+import java.awt.Cursor;
+import java.awt.Font;
+import java.awt.Insets;
 import java.awt.event.InputEvent;
 import java.awt.event.KeyEvent;
 import java.awt.event.MouseEvent;
@@ -66,6 +70,34 @@
 import java.net.URL;
 import java.util.Map;
 import java.util.logging.Logger;
+
+import javax.swing.KeyStroke;
+import javax.swing.event.EventListenerList;
+import javax.swing.event.HyperlinkEvent;
+import javax.swing.event.HyperlinkListener;
+import javax.swing.text.BadLocationException;
+import javax.swing.text.Segment;
+
+import org.apache.commons.compress.utils.IOUtils;
+import org.fife.ui.autocomplete.AutoCompletion;
+import org.fife.ui.rsyntaxtextarea.LinkGenerator;
+import org.fife.ui.rsyntaxtextarea.LinkGeneratorResult;
+import org.fife.ui.rsyntaxtextarea.RSyntaxDocument;
+import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea;
+import org.fife.ui.rsyntaxtextarea.Style;
+import org.fife.ui.rsyntaxtextarea.Theme;
+import org.fife.ui.rsyntaxtextarea.Token;
+import org.fife.ui.rsyntaxtextarea.TokenImpl;
+import org.fife.ui.rsyntaxtextarea.TokenTypes;
+import org.fife.ui.rtextarea.RTextArea;
+import org.fife.ui.rtextarea.RTextAreaUI;
+
+import cc.arduino.autocomplete.CompletionProvider;
+import cc.arduino.autocomplete.rsyntax.SketchCompletionProvider;
+import processing.app.Base;
+import processing.app.BaseNoGui;
+import processing.app.PreferencesData;
+import processing.app.Sketch;
 import processing.app.helpers.OSUtils;
 
 /**
@@ -79,6 +111,8 @@ public class SketchTextArea extends RSyntaxTextArea {
   private final static Logger LOG = Logger.getLogger(SketchTextArea.class.getName());
 
   private PdeKeywords pdeKeywords;
+  
+  private SketchCompletionProvider completionProvider;
 
   public SketchTextArea(RSyntaxDocument document, PdeKeywords pdeKeywords) throws IOException {
     super(document);
@@ -91,6 +125,22 @@ public void setKeywords(PdeKeywords keywords) {
     pdeKeywords = keywords;
     setLinkGenerator(new DocLinkGenerator(pdeKeywords));
   }
+  
+  public void setupAutoComplete(Sketch sketch, CompletionProvider provider) {
+ 
+    this.completionProvider = new SketchCompletionProvider(sketch, this, provider);
+    
+    AutoCompletion ac = new AutoCompletion( this.completionProvider);
+    
+    ac.setAutoActivationEnabled(true);
+    ac.setShowDescWindow(false);
+    ac.setAutoCompleteSingleChoices(true);
+    ac.setParameterAssistanceEnabled(true);
+//    ac.setParamChoicesRenderer(new CompletionsRenderer());
+//    ac.setListCellRenderer(new CompletionsRenderer());
+    ac.install(this);
+	  
+  }
 
   private void installFeatures() throws IOException {
     setTheme(PreferencesData.get("editor.syntax_theme", "default"));

app/src/processing/app/syntax/SketchTextArea.java

@@ -246,6 +246,10 @@ public boolean isModified() {
   public boolean equals(Object o) {
     return (o instanceof SketchFile) && file.equals(((SketchFile) o).file);
   }
+  
+  public Sketch getSketch() {
+	return sketch;
+  }
 
   /**
    * Load this piece of code from a file and return the contents. This