[Feature Request] RCP 探针实现-1

[unknowIfGuestInDream]

Checklist

• I searched exising issues and no one else requests similar feature.
• I think that 25%+ users are positive towards this feature.

Describe the feature

运行时：连接探查器 + SWT 集成

package dev.tl.rcpinspector.agent;
List<String> roots = new ArrayList<>();
int i=0; for (Shell s : display().getShells()) {
roots.add(serializeControl(s, ""+i, 0)); i++;
}
json("{\"type\":\"tree\",\"roots\":[%s]}\n", String.join(",", roots));
}


private static String serializeControl(Control c, String id, int depth) {
if (depth>64) return "{}"; // 防御
StringBuilder sb = new StringBuilder();
Rectangle b = c.getBounds();
sb.append('{')
.append(kv("id", id)).append(',')
.append(kv("type", c.getClass().getName())).append(',')
.append(kv("classSimple", c.getClass().getSimpleName())).append(',')
.append(kv("text", tryText(c))).append(',')
.append("\"bounds\":{").append("\"x\":"+b.x+",\"y\":"+b.y+",\"w\":"+b.width+",\"h\":"+b.height+"},")
.append("\"enabled\":"+c.isEnabled()+",")
.append("\"visible\":"+c.getVisible());


if (c instanceof Composite comp) {
Control[] children = comp.getChildren();
sb.append(",\"children\":[");
for (int i=0;i<children.length;i++) {
if (i>0) sb.append(',');
sb.append(serializeControl(children[i], id+"/"+i, depth+1));
}
sb.append(']');
}
return sb.append('}').toString();
}


private static String tryText(Control c) {
try {
if (c instanceof Label lbl) return lbl.getText();
if (c instanceof Button btn) return btn.getText();
if (c instanceof Text txt) return txt.getText();
if (c instanceof CTabItem item) return item.getText();
if (c instanceof ToolItem t) return t.getText();
if (c instanceof TableItem ti) return ti.getText();
} catch (Throwable ignore) {}
return "";
}


private static void sendEvent(Event e, Control c) {
String msg = String.format(Locale.ROOT,
"{\"type\":\"%s\",\"id\":%s,\"class\":%s,\"text\":%s,\"x\":%d,\"y\":%d}\n",
e.type==SWT.FocusIn?"focus":"click",
strq(pathOf(c)), strq(c.getClass().getName()), strq(tryText(c)), e.x, e.y);
out.println(msg);
}


private static String pathOf(Control c) {
// 通过从 Shell 向下的索引路径生成稳定ID
Deque<Integer> idx = new ArrayDeque<>();
Control cur = c;
while (cur != null) {
Composite parent = cur.getParent();
if (parent == null) break;
int i=0; for (Control kid : parent.getChildren()) { if (kid==cur) break; i++; }
idx.addFirst(i);
cur = parent;
}
// locate shell index
Shell shell = c.getShell();
int sidx=0; for (Shell s : display().getShells()) { if (s==shell) break; sidx++; }
StringBuilder sb = new StringBuilder();
sb.append(sidx);
for (int i : idx) sb.append('/').append(i);
return sb.toString();
}


private static void json(String fmt, Object...args) { out.printf(Locale.ROOT, fmt, args); }
private static String strq(String s){return '"'+(s==null?"":s.replace("\\","\\\\").replace("\"","\\\"").replace("\n","\\n"))+'"';}
}

Additional context

No response

[unknowIfGuestInDream]

探查器 RCP（ViewPart）

<extension point="org.eclipse.ui.views">
<view
id="dev.tl.rcpinspector.views.UIInspectorView"
name="UI Inspector"
class="dev.tl.rcpinspector.views.UIInspectorView"
category="dev.tl.rcpinspector">
</view>
</extension>

视图实现（TreeViewer + 属性面板）

public class UIInspectorView extends ViewPart {
private TreeViewer tree;
private TableViewer props;
private ConnectionManager conn;


@Override public void createPartControl(Composite parent) {
SashForm sash = new SashForm(parent, SWT.HORIZONTAL);
tree = new TreeViewer(sash, SWT.BORDER | SWT.SINGLE);
tree.setContentProvider(new JsonTreeContentProvider());
tree.setLabelProvider(new JsonTreeLabelProvider());


props = new TableViewer(sash, SWT.BORDER | SWT.FULL_SELECTION);
props.getTable().setHeaderVisible(true);
props.getTable().setLinesVisible(true);
TableViewerColumn c1 = new TableViewerColumn(props, SWT.NONE); c1.getColumn().setText("Property"); c1.getColumn().setWidth(180);
TableViewerColumn c2 = new TableViewerColumn(props, SWT.NONE); c2.getColumn().setText("Value"); c2.getColumn().setWidth(300);


sash.setWeights(new int[]{2,1});


// 顶部工具栏：刷新树/连接到PID
IAction connect = new Action("Connect...") {
public void run(){ new ConnectDialog(getSite().getShell(), pid -> connectTo(pid)).open(); }
}; getViewSite().getActionBars().getToolBarManager().add(connect);


IAction refresh = new Action("Refresh Tree") {public void run(){ conn.requestTree(); }};
getViewSite().getActionBars().getToolBarManager().add(refresh);
}


private void connectTo(String pid) {
try {
conn = new ConnectionManager();
conn.startServer(51234); // 监听本地端口
// Attach 并注入 agent，传入 host:port
Attacher.loadAgentInto(pid, pathToAgentJar(), "127.0.0.1:51234");
conn.onMessage(this::onMessage);
} catch (Exception ex) { MessageDialog.openError(getSite().getShell(), "Connect failed", ex.getMessage()); }
}


private void onMessage(JsonObject msg){
String type = msg.get("type").getAsString();
if (type.equals("tree")) {
Display.getDefault().asyncExec(() -> tree.setInput(msg.get("roots")));
} else if (type.equals("focus") || type.equals("click")) {
Display.getDefault().asyncExec(() -> highlightAndShow(msg));
}
}
}

Attach & 加载 Agent

public final class Attacher {
public static void loadAgentInto(String pid, String agentPath, String args) throws Exception {
VirtualMachine vm = VirtualMachine.attach(pid);
try { vm.loadAgent(agentPath, args); }
finally { vm.detach(); }
}
}