Examples with JSC com.dukescript.presenters.renderer.JSC used on opensource projects

Example 1 with JSC

use of com.dukescript.presenters.renderer.JSC in project dukescript-presenters by dukescript.

the class WebKitPresenter method protect.

private void protect(Object obj, Pointer pointer) {
    JSC jsc = shell.jsc();
    jsc.JSValueProtect(ctx, pointer);
    ALL.add(new Protector(obj, pointer));
    cleanProtected();
}

Example 2 with JSC

use of com.dukescript.presenters.renderer.JSC in project dukescript-presenters by dukescript.

the class WebKitPresenter method defineFn.

@Override
public Fn defineFn(String code, String[] names, boolean[] keepAlive) {
    JSC jsc = shell.jsc();
    Pointer[] jsNames = new Pointer[names.length];
    for (int i = 0; i < jsNames.length; i++) {
        jsNames[i] = jsc.JSStringCreateWithUTF8CString(names[i]);
    }
    Pointer jsCode = jsc.JSStringCreateWithUTF8CString(code);
    PointerByReference exc = new PointerByReference();
    Pointer fn = jsc.JSObjectMakeFunction(ctx, null, names.length, jsNames, jsCode, null, 1, exc);
    if (fn == null) {
        throw new IllegalStateException("Cannot initialize function: " + exc.getValue());
    }
    jsc.JSStringRelease(jsCode);
    for (Pointer jsName : jsNames) {
        jsc.JSStringRelease(jsName);
    }
    return new JSCFn(fn, keepAlive);
}

Example 3 with JSC

use of com.dukescript.presenters.renderer.JSC in project dukescript-presenters by dukescript.

the class WebKitPresenter method convertFromJava.

Pointer[] convertFromJava(Object[] args, boolean[] keepAlive) throws Exception {
    JSC jsc = shell.jsc();
    Pointer[] arr = new Pointer[args.length];
    for (int i = 0; i < arr.length; i++) {
        Object v = args[i];
        if (v == null) {
            v = jsc.JSValueMakeNull(ctx);
        } else if (v instanceof Number) {
            v = jsc.JSValueMakeNumber(ctx, ((Number) v).doubleValue());
        } else if (v instanceof Boolean) {
            v = ((Boolean) v) ? valueTrue : valueFalse;
        } else if (v instanceof String) {
            Pointer str = jsc.JSStringCreateWithUTF8CString((String) v);
            v = jsc.JSValueMakeString(ctx, str);
            jsc.JSStringRelease(str);
        } else if (v instanceof Enum) {
            Pointer str = jsc.JSStringCreateWithUTF8CString(((Enum) v).name());
            v = jsc.JSValueMakeString(ctx, str);
            jsc.JSStringRelease(str);
        } else if (v instanceof Character) {
            v = jsc.JSValueMakeNumber(ctx, (Character) v);
        } else if (v instanceof JSObject) {
            v = ((JSObject) v).value;
        } else if (v instanceof int[]) {
            int[] numbers = (int[]) v;
            Pointer[] content = new Pointer[numbers.length];
            for (int j = 0; j < content.length; j++) {
                content[j] = jsc.JSValueMakeNumber(ctx, numbers[j]);
            }
            v = jsc.JSObjectMakeArray(ctx, content.length, content, null);
        } else if (v instanceof double[]) {
            double[] numbers = (double[]) v;
            Pointer[] content = new Pointer[numbers.length];
            for (int j = 0; j < content.length; j++) {
                content[j] = jsc.JSValueMakeNumber(ctx, numbers[j]);
            }
            v = jsc.JSObjectMakeArray(ctx, content.length, content, null);
        } else if (v instanceof Object[]) {
            Pointer[] content = convertFromJava((Object[]) v);
            v = jsc.JSObjectMakeArray(ctx, content.length, content, null);
        } else if (v.getClass().isArray()) {
            int len = Array.getLength(v);
            Object[] boxed = new Object[len];
            for (int j = 0; j < len; j++) {
                boxed[j] = Array.get(v, j);
            }
            Pointer[] content = convertFromJava(boxed);
            v = jsc.JSObjectMakeArray(ctx, content.length, content, null);
        } else if (v.getClass().getSimpleName().equals("$JsCallbacks$")) {
            Pointer vm = jsc.JSObjectMake(ctx, null, null);
            for (Method method : v.getClass().getMethods()) {
                if (method.getDeclaringClass() != v.getClass()) {
                    continue;
                }
                Pointer name = jsc.JSStringCreateWithUTF8CString(method.getName());
                FnCallback fnC = new FnCallback(v, method);
                toJava.put(fnC, fnC);
                Pointer fn = jsc.JSObjectMakeFunctionWithCallback(ctx, null, fnC);
                jsc.JSObjectSetProperty(ctx, vm, name, fn, 0, null);
                jsc.JSStringRelease(name);
            }
            v = vm;
        } else {
            Pointer p = jsc.JSObjectMake(ctx, javaClazz, v);
            if (keepAlive == null || keepAlive[i]) {
                toJava.put(p, v);
            } else {
                toJava.put(p, new WeakVal(v));
            }
            protect(v, p);
            v = p;
        }
        arr[i] = (Pointer) v;
    }
    return arr;
}

Example 4 with JSC

use of com.dukescript.presenters.renderer.JSC in project dukescript-presenters by dukescript.

the class WebKitPresenter method jsContext.

final void jsContext(Pointer ctx) {
    this.ctx = ctx;
    JSC jsc = shell.jsc();
    onFinalize = new WebKitPresenter.OnFinalize();
    javaClazz = jsc.JSClassCreate(new JSC.JSClassDefinition(onFinalize));
    boolean testInstance = false;
    assert testInstance = true;
    if (testInstance) {
        Pointer testObj = jsc.JSObjectMake(ctx, javaClazz, null);
        assert isJavaClazz(testObj) : "Own classes has to be recognized";
    }
    {
        Pointer jsGlobal = ctx;
        Pointer arrArg = jsc.JSStringCreateWithUTF8CString("x");
        Pointer arrT = jsc.JSStringCreateWithUTF8CString("var res = x.constructor === Array ? x.length : -1; return res;");
        Pointer arrFn = jsc.JSObjectMakeFunction(jsGlobal, null, 1, new Pointer[] { arrArg }, arrT, null, 0, null);
        arrayLength = arrFn;
        jsc.JSValueProtect(ctx, arrFn);
        assert !isJavaClazz(arrayLength) : "functions aren't Java classes";
    }
    {
        Pointer trueScr = jsc.JSStringCreateWithUTF8CString("true");
        valueTrue = jsc.JSEvaluateScript(ctx, trueScr, null, null, 1, null);
        jsc.JSStringRelease(trueScr);
        jsc.JSValueProtect(ctx, valueTrue);
        int vT = jsc.JSValueGetType(ctx, valueTrue);
        assert vT == 2;
        assert !isJavaClazz(valueTrue) : "true isn't Java class";
    }
    {
        Pointer falseScr = jsc.JSStringCreateWithUTF8CString("false");
        valueFalse = jsc.JSEvaluateScript(ctx, falseScr, null, null, 1, null);
        jsc.JSValueProtect(ctx, valueFalse);
        jsc.JSStringRelease(falseScr);
        int vF = jsc.JSValueGetType(ctx, valueFalse);
        assert vF == 2;
        assert !isJavaClazz(valueFalse) : "false isn't Java class";
    }
}