Many new things

2026-02-28 17:39:42 +01:00
parent a84c626416
commit a9b0ccb8a7
30 changed files with 2490 additions and 150 deletions
--- a/src/main/java/org/openautonomousconnection/luascript/fx/FxCssHost.java
+++ b/src/main/java/org/openautonomousconnection/luascript/fx/FxCssHost.java
@@ -0,0 +1,122 @@
+package org.openautonomousconnection.luascript.fx;
+
+import javafx.scene.web.WebEngine;
+import org.openautonomousconnection.luascript.hosts.CssHost;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * CSS host via internal JS bridge.
+ */
+public final class FxCssHost implements CssHost {
+
+    private final WebEngine engine;
+    private final FxDomHost dom;
+
+    public FxCssHost(WebEngine engine, FxDomHost dom) {
+        this.engine = Objects.requireNonNull(engine, "engine");
+        this.dom = Objects.requireNonNull(dom, "dom");
+    }
+
+    @Override
+    public String getComputedStyle(String elementId, String property) {
+        Objects.requireNonNull(elementId, "elementId");
+        Objects.requireNonNull(property, "property");
+
+        return FxThreadBridge.callAndWait(() -> FxWebBridge.callWithJs(engine, () -> {
+            dom.requireDocument();
+
+            String script = ""
+                    + "(function(){"
+                    + "  var id=" + FxWebBridge.toJsLiteral(elementId) + ";"
+                    + "  var prop=" + FxWebBridge.toJsLiteral(property) + ";"
+                    + "  var el=document.getElementById(id);"
+                    + "  if(!el) throw new Error('Unknown element id: '+id);"
+                    + "  var cs=getComputedStyle(el);"
+                    + "  var v=cs.getPropertyValue(prop) || cs[prop] || '';"
+                    + "  return String(v);"
+                    + "})();";
+
+            Object ret = engine.executeScript(script);
+            return ret == null ? "" : String.valueOf(ret);
+        }));
+    }
+
+    @Override
+    public Map<String, String> getComputedStyles(String elementId, String[] properties) {
+        Objects.requireNonNull(elementId, "elementId");
+        Objects.requireNonNull(properties, "properties");
+
+        Map<String, String> out = new LinkedHashMap<>();
+        for (String p : properties) {
+            if (p == null || p.isBlank()) continue;
+            out.put(p, getComputedStyle(elementId, p));
+        }
+        return out;
+    }
+
+    @Override
+    public void setInlineStyle(String elementId, String property, String value) {
+        Objects.requireNonNull(elementId, "elementId");
+        Objects.requireNonNull(property, "property");
+
+        FxThreadBridge.runAndWait(() -> FxWebBridge.runWithJs(engine, () -> {
+            dom.requireDocument();
+
+            String v = value == null ? "" : value;
+
+            String script = ""
+                    + "(function(){"
+                    + "  var id=" + FxWebBridge.toJsLiteral(elementId) + ";"
+                    + "  var prop=" + FxWebBridge.toJsLiteral(property) + ";"
+                    + "  var val=" + FxWebBridge.toJsLiteral(v) + ";"
+                    + "  var el=document.getElementById(id);"
+                    + "  if(!el) throw new Error('Unknown element id: '+id);"
+                    + "  if(!val){ el.style.removeProperty(prop); return null; }"
+                    + "  el.style.setProperty(prop, val);"
+                    + "  return null;"
+                    + "})();";
+
+            engine.executeScript(script);
+        }));
+    }
+
+    @Override
+    public String getInlineStyle(String elementId, String property) {
+        Objects.requireNonNull(elementId, "elementId");
+        Objects.requireNonNull(property, "property");
+
+        return FxThreadBridge.callAndWait(() -> FxWebBridge.callWithJs(engine, () -> {
+            dom.requireDocument();
+
+            String script = ""
+                    + "(function(){"
+                    + "  var id=" + FxWebBridge.toJsLiteral(elementId) + ";"
+                    + "  var prop=" + FxWebBridge.toJsLiteral(property) + ";"
+                    + "  var el=document.getElementById(id);"
+                    + "  if(!el) throw new Error('Unknown element id: '+id);"
+                    + "  var v=el.style.getPropertyValue(prop) || '';"
+                    + "  return String(v);"
+                    + "})();";
+
+            Object ret = engine.executeScript(script);
+            return ret == null ? "" : String.valueOf(ret);
+        }));
+    }
+
+    @Override
+    public void setCssVariable(String elementId, String name, String value) {
+        Objects.requireNonNull(name, "name");
+        if (!name.trim().startsWith("--")) throw new IllegalArgumentException("CSS variable must start with '--': " + name);
+        setInlineStyle(elementId, name.trim(), value);
+    }
+
+    @Override
+    public String getCssVariable(String elementId, String name) {
+        Objects.requireNonNull(name, "name");
+        if (!name.trim().startsWith("--")) throw new IllegalArgumentException("CSS variable must start with '--': " + name);
+        return getComputedStyle(elementId, name.trim());
+    }
+}