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Copy pathShowUsage.java
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327 lines (264 loc) · 10.5 KB
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package processing.mode.java;
import static processing.mode.java.ASTUtils.findAllOccurrences;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.function.Consumer;
import java.util.stream.Collectors;
import javax.swing.JDialog;
import javax.swing.JMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.WindowConstants;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeModel;
import org.eclipse.jdt.core.dom.IBinding;
import org.eclipse.jdt.core.dom.IMethodBinding;
import org.eclipse.jdt.core.dom.IVariableBinding;
import org.eclipse.jdt.core.dom.SimpleName;
import processing.app.Language;
import processing.app.ui.EditorStatus;
import processing.app.ui.Toolkit;
import processing.app.ui.ZoomTreeCellRenderer;
class ShowUsage {
final JDialog window;
final JTree tree;
final JavaEditor editor;
final PreprocService pps;
final Consumer<PreprocSketch> reloadListener;
IBinding binding;
ShowUsage(JavaEditor editor, PreprocService pps) {
this.editor = editor;
this.pps = pps;
// Add show usage option
JMenuItem showUsageItem =
new JMenuItem(Language.text("editor.popup.show_usage"));
showUsageItem.addActionListener(e -> handleShowUsage());
editor.getTextArea().getRightClickPopup().add(showUsageItem);
reloadListener = this::reloadShowUsage;
{ // Show Usage window
window = new JDialog(editor);
window.setDefaultCloseOperation(WindowConstants.HIDE_ON_CLOSE);
window.setAutoRequestFocus(false);
window.addComponentListener(new ComponentAdapter() {
@Override
public void componentHidden(ComponentEvent e) {
binding = null;
tree.setModel(null);
pps.unregisterListener(reloadListener);
}
@Override
public void componentShown(ComponentEvent e) {
pps.registerListener(reloadListener);
}
});
window.setSize(Toolkit.zoom(300, 400));
window.setFocusableWindowState(false);
Toolkit.setIcon(window);
JScrollPane sp2 = new JScrollPane();
tree = new JTree();
ZoomTreeCellRenderer renderer =
new ZoomTreeCellRenderer();
tree.setCellRenderer(renderer);
renderer.setLeafIcon(null);
renderer.setClosedIcon(null);
renderer.setOpenIcon(null);
renderer.setBackgroundSelectionColor(new Color(228, 248, 246));
renderer.setBorderSelectionColor(new Color(0, 0, 0, 0));
renderer.setTextSelectionColor(Color.BLACK);
sp2.setViewportView(tree);
window.add(sp2);
}
tree.addTreeSelectionListener(e -> {
if (tree.getLastSelectedPathComponent() != null) {
DefaultMutableTreeNode tnode =
(DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
if (tnode.getUserObject() instanceof ShowUsageTreeNode) {
ShowUsageTreeNode node = (ShowUsageTreeNode) tnode.getUserObject();
editor.highlight(node.tabIndex, node.startTabOffset, node.stopTabOffset);
}
}
});
}
// Thread: EDT
void handleShowUsage() {
int startOffset = editor.getSelectionStart();
int stopOffset = editor.getSelectionStop();
int tabIndex = editor.getSketch().getCurrentCodeIndex();
pps.whenDoneBlocking(ps -> handleShowUsage(ps, tabIndex, startOffset, stopOffset));
}
// Thread: worker
void handleShowUsage(PreprocSketch ps, int tabIndex,
int startTabOffset, int stopTabOffset) {
// Map offsets
int startJavaOffset = ps.tabOffsetToJavaOffset(tabIndex, startTabOffset);
int stopJavaOffset = ps.tabOffsetToJavaOffset(tabIndex, stopTabOffset);
// Find the node
SimpleName name = ASTUtils.getSimpleNameAt(ps.compilationUnit, startJavaOffset, stopJavaOffset);
if (name == null) {
editor.statusMessage("Cannot find any name under cursor", EditorStatus.NOTICE);
return;
}
// Find binding
IBinding binding = ASTUtils.resolveBinding(name);
if (binding == null) {
editor.statusMessage("Cannot find usages, try to fix errors in your code first",
EditorStatus.NOTICE);
return;
}
findUsageAndUpdateTree(ps, binding);
}
// Thread: worker
void findUsageAndUpdateTree(PreprocSketch ps, IBinding binding) {
this.binding = binding;
// Get label
String bindingType = "";
switch (binding.getKind()) {
case IBinding.METHOD:
IMethodBinding method = (IMethodBinding) binding;
if (method.isConstructor()) bindingType = "Constructor";
else bindingType = "Method";
break;
case IBinding.TYPE:
bindingType = "Type";
break;
case IBinding.VARIABLE:
IVariableBinding variable = (IVariableBinding) binding;
if (variable.isField()) bindingType = "Field";
else if (variable.isParameter()) bindingType = "Parameter";
else if (variable.isEnumConstant()) bindingType = "Enum constant";
else bindingType = "Local variable";
break;
}
// Find usages, map to tree nodes, add to root node
String bindingKey = binding.getKey();
List<SketchInterval> intervals =
findAllOccurrences(ps.compilationUnit, bindingKey).stream()
.map(ps::mapJavaToSketch)
// remove occurrences which fall into generated header
.filter(ps::inRange)
// remove empty intervals (happens when occurence was inserted)
.filter(in -> in.startPdeOffset < in.stopPdeOffset)
.collect(Collectors.toList());
int usageCount = intervals.size();
// Get element name from PDE code if possible, otherwise use one from Java
String elementName = intervals.stream()
.findAny()
.map(si -> ps.pdeCode.substring(si.startPdeOffset, si.stopPdeOffset))
.orElseGet(binding::getName);
// Create root node
DefaultMutableTreeNode rootNode =
new DefaultMutableTreeNode(bindingType + ": " + elementName);
intervals.stream()
// Convert to TreeNodes
.map(in -> ShowUsageTreeNode.fromSketchInterval(ps, in))
// Group by tab index
.collect(Collectors.groupingBy(node -> node.tabIndex))
// Stream Map Entries of (tab index) <-> (List<ShowUsageTreeNode>)
.entrySet().stream()
// Sort by tab index
.sorted(Comparator.comparing(Map.Entry::getKey))
.map(entry -> {
Integer tabIndex = entry.getKey();
List<ShowUsageTreeNode> nodes = entry.getValue();
int count = nodes.size();
String usageLabel = count == 1 ? "usage" : "usages";
// Create new DefaultMutableTreeNode for this tab
String tabLabel = "<html><font color=#222222>" +
ps.sketch.getCode(tabIndex).getPrettyName() +
"</font> <font color=#999999>" + count + " " + usageLabel + "</font></html>";
DefaultMutableTreeNode tabNode = new DefaultMutableTreeNode(tabLabel);
// Stream nodes belonging to this tab
nodes.stream()
// Convert TreeNodes to DefaultMutableTreeNodes
.map(DefaultMutableTreeNode::new)
// Add all as children of tab node
.forEach(tabNode::add);
return tabNode;
})
// Add all tab nodes as children of root node
.forEach(rootNode::add);
TreeModel treeModel = new DefaultTreeModel(rootNode);
// Update tree
EventQueue.invokeLater(() -> {
tree.setModel(treeModel);
// Expand all nodes
for (int i = 0; i < tree.getRowCount(); i++) {
tree.expandRow(i);
}
tree.setRootVisible(true);
if (!window.isVisible()) {
window.setVisible(true);
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice defaultScreen = ge.getDefaultScreenDevice();
Rectangle rect = defaultScreen.getDefaultConfiguration().getBounds();
int maxX = (int) rect.getMaxX() - window.getWidth();
int x = Math.min(editor.getX() + editor.getWidth(), maxX);
int y = (x == maxX) ? 10 : editor.getY();
window.setLocation(x, y);
}
window.toFront();
window.setTitle("Usage of \"" + elementName + "\" : " +
usageCount + " time(s)");
});
}
// Thread: worker
void reloadShowUsage(PreprocSketch ps) {
if (binding != null) {
findUsageAndUpdateTree(ps, binding);
}
}
void hide() {
window.setVisible(false);
}
void dispose() {
if (window != null) {
window.dispose();
}
}
}
class ShowUsageTreeNode {
final int tabIndex;
final int startTabOffset;
final int stopTabOffset;
final String text;
ShowUsageTreeNode(int tabIndex, int startTabOffset, int stopTabOffset, String text) {
this.tabIndex = tabIndex;
this.startTabOffset = startTabOffset;
this.stopTabOffset = stopTabOffset;
this.text = text;
}
static ShowUsageTreeNode fromSketchInterval(PreprocSketch ps, SketchInterval in) {
int lineStartPdeOffset = ps.pdeCode.lastIndexOf('\n', in.startPdeOffset) + 1;
int lineStopPdeOffset = ps.pdeCode.indexOf('\n', in.stopPdeOffset);
if (lineStopPdeOffset == -1) lineStopPdeOffset = ps.pdeCode.length();
int highlightStartOffset = in.startPdeOffset - lineStartPdeOffset;
int highlightStopOffset = in.stopPdeOffset - lineStartPdeOffset;
int tabLine = ps.tabOffsetToTabLine(in.tabIndex, in.startTabOffset);
// TODO: what a mess
String line = ps.pdeCode.substring(lineStartPdeOffset, lineStopPdeOffset);
String pre = line.substring(0, highlightStartOffset)
.replace("&", "&").replace(">", ">").replace("<", "<");
String highlight = line.substring(highlightStartOffset, highlightStopOffset)
.replace("&", "&").replace(">", ">").replace("<", "<");
String post = line.substring(highlightStopOffset)
.replace("&", "&").replace(">", ">").replace("<", "<");
line = pre + "<font color=#222222><b>" + highlight + "</b></font>" + post;
line = line.trim();
String text = "<html><font color=#bbbbbb>" +
(tabLine + 1) + "</font> <font color=#777777>" + line + "</font></html>";
return new ShowUsageTreeNode(in.tabIndex, in.startTabOffset, in.stopTabOffset, text);
}
@Override
public String toString() {
return text;
}
}