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Clean up the listener madness in JavaTextArea

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This commit is contained in:
Jakub Valtar
2016-03-11 12:40:23 +01:00
parent b9309f47e3
commit 6d2f4e9804
1 changed files with 16 additions and 107 deletions
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123
java/src/processing/mode/java/pdex/JavaTextArea.java
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@@ -60,8 +60,6 @@ public class JavaTextArea extends JEditTextArea {
protected PdeTextAreaDefaults defaults;
protected JavaEditor editor;
// cached mouselisteners, these are wrapped by MouseHandler
protected MouseListener[] mouseListeners;
// contains line background colors
protected Map<Integer, Color> lineColors = new HashMap<Integer, Color>();
@@ -91,37 +89,12 @@ public class JavaTextArea extends JEditTextArea {
super(defaults, new JavaInputHandler(editor));
this.editor = editor;
// removed all this since we have the createPainter() method and we
// won't have to remove/re-add the custom painter object [fry 150122]
// although there's also something bad happening here, that we're
// re-forwarding all those events to all the other listeners?
// that's making a hacky mess, plus the tweak code is also doing
// something similar? [fry 150512]
// handle right click on a word
painter.addMouseListener(rightClickMouseAdapter);
// // replace the painter:
// // first save listeners, these are package-private in JEditTextArea, so not accessible
// ComponentListener[] componentListeners = painter.getComponentListeners();
mouseListeners = painter.getMouseListeners();
// MouseMotionListener[] mouseMotionListeners = painter.getMouseMotionListeners();
//
// remove(painter);
// // set new painter
// customPainter = new TextAreaPainter(this, defaults);
// painter = customPainter;
//
// // set listeners
// for (ComponentListener cl : componentListeners) {
// painter.addComponentListener(cl);
// }
//
// for (MouseMotionListener mml : mouseMotionListeners) {
// painter.addMouseMotionListener(mml);
// }
// change cursor to pointer in the gutter area
painter.addMouseMotionListener(gutterCursorMouseAdapter);
// use a custom mouse handler instead of directly using mouseListeners
MouseHandler mouseHandler = new MouseHandler();
painter.addMouseListener(mouseHandler);
painter.addMouseMotionListener(mouseHandler);
//addCompletionPopupListner();
add(CENTER, painter);
@@ -139,7 +112,6 @@ public class JavaTextArea extends JEditTextArea {
prevKeyListeners = editor.getKeyListeners();
tweakMode = false;
addPrevListeners();
}
@@ -832,90 +804,27 @@ public class JavaTextArea extends JEditTextArea {
/**
* Custom mouse handler. Implements double clicking in the gutter area to
* toggle breakpoints, sets default cursor (instead of text cursor) in the
* gutter area.
* Fetches word under the cursor on right click
*/
protected class MouseHandler implements MouseListener, MouseMotionListener {
protected int lastX; // previous horizontal positon of the mouse cursor
@Override
public void mouseClicked(MouseEvent me) {
// forward to standard listeners
for (MouseListener ml : mouseListeners) {
ml.mouseClicked(me);
}
}
protected final MouseAdapter rightClickMouseAdapter = new MouseAdapter() {
@Override
public void mousePressed(MouseEvent me) {
// // check if this happened in the gutter area
// if (me.getX() < Editor.LEFT_GUTTER) {
// if (me.getButton() == MouseEvent.BUTTON1) { // && me.getClickCount() == 2) {
// //int line = me.getY() / painter.getFontMetrics().getHeight() + firstLine;
// int offset = xyToOffset(me.getX(), me.getY());
// if (offset >= 0) {
// int lineIndex = getLineOfOffset(offset);
// editor.toggleBreakpoint(lineIndex);
// }
//// if (line >= 0 && line < getLineCount()) {
//// //editor.gutterDblClicked(line);
//// editor.toggleBreakpoint(line);
//// }
// }
// return;
// }
if (me.getButton() == MouseEvent.BUTTON3) {
if (!editor.hasJavaTabs()) { // tooltips, etc disabled for java tabs
fetchPhrase(me);
}
}
// forward to standard listeners
for (MouseListener ml : mouseListeners) {
ml.mousePressed(me);
}
}
@Override
public void mouseReleased(MouseEvent me) {
// forward to standard listeners
for (MouseListener ml : mouseListeners) {
ml.mouseReleased(me);
if (me.getButton() == MouseEvent.BUTTON3 &&
!editor.hasJavaTabs()) { // tooltips, etc disabled for java tabs
fetchPhrase(me);
}
}
};
@Override
public void mouseEntered(MouseEvent me) {
// forward to standard listeners
for (MouseListener ml : mouseListeners) {
// investigating an NPE that keeps showing up here [fry]
// if (ml == null || me == null) {
// System.out.println(ml + " " + me);
// }
ml.mouseEntered(me);
}
}
@Override
public void mouseExited(MouseEvent me) {
// forward to standard listeners
for (MouseListener ml : mouseListeners) {
ml.mouseExited(me);
}
}
@Override
public void mouseDragged(MouseEvent me) {
// No need to forward since the standard MouseMotionListeners are called anyway
// nop
}
/**
* Sets default cursor (instead of text cursor) in the gutter area.
*/
protected final MouseMotionAdapter gutterCursorMouseAdapter = new MouseMotionAdapter() {
private int lastX; // previous horizontal positon of the mouse cursor
@Override
public void mouseMoved(MouseEvent me) {
// No need to forward since the standard MouseMotionListeners are called anyway
if (me.getX() < Editor.LEFT_GUTTER) {
if (lastX >= Editor.LEFT_GUTTER) {
painter.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
@@ -927,7 +836,7 @@ public class JavaTextArea extends JEditTextArea {
}
lastX = me.getX();
}
}
};
// appears unused, removed when looking to change completion trigger [fry 140801]