[apps/code] Autocompletion steps

apps/code/python_text_area.cpp

@@ -196,4 +196,38 @@ KDRect PythonTextArea::ContentView::dirtyRectFromPosition(const char * position,
   );
 }
 
+bool PythonTextArea::handleEventWithText(const char * text, bool indentation, bool forceCursorRightOfText) {
+  if (*text == 0) {
+    return false;
+  }
+  if (m_contentView.isAutocompleting()) {
+    removeAutocompletion();
+  }
+  bool result = TextArea::handleEventWithText(text, indentation, forceCursorRightOfText);
+  addAutocompletion();
+  return result;
+}
+
+void PythonTextArea::removeAutocompletion() {
+  assert(m_contentView.isAutocompleting());
+  const char * autocompleteStart = m_contentView.cursorLocation();
+  const char * autocompleteEnd = UTF8Helper::EndOfWord(autocompleteStart);
+  assert(autocompleteEnd > autocompleteStart);
+  m_contentView.removeText(autocompleteStart, autocompleteEnd);
+  m_contentView.setAutocompleting(false);
+}
+
+void PythonTextArea::addAutocompletion() {
+  assert(!m_contentView.isAutocompleting());
+
+  // Compute the text to insert
+  // TODO LEA
+  const char * textToInsert = "test";
+
+  // Try to insert the text (this might fail if the buffer is full)
+  if (textToInsert && m_contentView.insertTextAtLocation(textToInsert, const_cast<char *>(cursorLocation()))) {
+    m_contentView.setAutocompleting(true);
+  }
+}
+
 }

apps/code/python_text_area.h

@@ -16,6 +16,7 @@ public:
   }
   void loadSyntaxHighlighter() { m_contentView.loadSyntaxHighlighter(); }
   void unloadSyntaxHighlighter() { m_contentView.unloadSyntaxHighlighter(); }
+  bool handleEventWithText(const char * text, bool indentation = false, bool forceCursorRightOfText = false) override;
 protected:
   class ContentView : public TextArea::ContentView {
   public:
@@ -25,6 +26,8 @@ protected:
       m_autocomplete(false)
     {
     }
+    void setAutocompleting(bool autocomplete) { m_autocomplete = autocomplete; }
+    bool isAutocompleting() const { return m_autocomplete; }
     void loadSyntaxHighlighter();
     void unloadSyntaxHighlighter();
     void clearRect(KDContext * ctx, KDRect rect) const override;
@@ -35,6 +38,8 @@ protected:
     bool m_autocomplete;
   };
 private:
+  void removeAutocompletion();
+  void addAutocompletion();
   const ContentView * nonEditableContentView() const override { return &m_contentView; }
   ContentView m_contentView;
 };

escher/include/escher/text_area.h

@@ -122,6 +122,7 @@ protected:
     bool removePreviousGlyph() override;
     bool removeEndOfLine() override;
     bool removeStartOfLine();
+    size_t removeText(const char * start, const char * end);
     size_t deleteSelection() override;
   protected:
     KDRect glyphFrameAtPosition(const char * text, const char * position) const override;

escher/src/text_area.cpp

@@ -521,9 +521,13 @@ bool TextArea::ContentView::removeStartOfLine() {
   return false;
 }
 
+size_t TextArea::ContentView::removeText(const char * start, const char * end) {
+  return m_text.removeText(start, end);
+}
+
 size_t TextArea::ContentView::deleteSelection() {
   assert(!selectionIsEmpty());
-  size_t removedLength = m_text.removeText(m_selectionStart, m_selectionEnd);
+  size_t removedLength = removeText(m_selectionStart, m_selectionEnd);
   /* We cannot call resetSelection() because m_selectionStart and m_selectionEnd
    * are invalid */
   m_selectionStart = nullptr;