org.netbeans.html.presenters.render.Cocoa Maven / Gradle / Ivy
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.netbeans.html.presenters.render;
import com.sun.jna.Callback;
import com.sun.jna.CallbackThreadInitializer;
import com.sun.jna.FromNativeContext;
import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.NativeMapped;
import com.sun.jna.Pointer;
import com.sun.jna.Structure;
import com.sun.jna.ptr.IntByReference;
import java.io.Closeable;
import java.net.URI;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.logging.Level;
import org.netbeans.html.boot.spi.Fn;
final class Cocoa extends Show implements Callback {
private final Fn.Presenter presenter;
private final Runnable onPageLoad;
private final Runnable onContext;
private final JSC jsc;
private static final Queue QUEUE = new ConcurrentLinkedQueue();
private static Pointer NSApp;
private static Pointer appDelPtr;
private static Pointer doMainSelector;
private static Thread dispatchThread;
private AppDidStart appDidStart;
private Ready ready;
private ContextCreated contextCreated;
private UIDelegate ui;
private DialogHandler[] dialogs;
private Pointer jsContext;
private String page;
private Pointer webView;
private Pointer mainWindow;
Cocoa() {
this(null, null, null, false);
}
Cocoa(Fn.Presenter p, Runnable onPageLoad, Runnable onContext, boolean hl) {
this.presenter = p;
this.onPageLoad = onPageLoad;
this.onContext = onContext;
this.jsc = (JSC) Native.loadLibrary("JavaScriptCore", JSC.class, Collections.singletonMap(Library.OPTION_ALLOW_OBJECTS, true));
}
@Override
public JSC jsc() {
return jsc;
}
@Override
public Pointer jsContext() {
return jsContext;
}
@Override
public void show(URI page) {
this.page = page.toASCIIString();
ensureHttpAccess(page);
Native.loadLibrary("WebKit", WebKit.class);
appDidStart = new AppDidStart();
contextCreated = new ContextCreated();
ready = new Ready();
ui = new UIDelegate();
dialogs = new DialogHandler[3];
dialogs[0] = new DialogHandler(0);
dialogs[1] = new DialogHandler(1);
dialogs[2] = new DialogHandler(2);
if (appDelPtr == null) {
ObjC objC = ObjC.INSTANCE;
Pointer appDelClass = objC.objc_allocateClassPair(objC.objc_getClass("NSObject"), "AppDelegate", 0);
objC.class_addMethod(appDelClass, objC.sel_getUid("applicationDidFinishLaunching:"), appDidStart, "i@:@");
doMainSelector = objC.sel_getUid("doMain");
Native.setCallbackThreadInitializer(this, new CallbackThreadInitializer(false, false, "Cocoa Dispatch Thread"));
objC.class_addMethod(appDelClass, doMainSelector, this, "i@");
objC.class_addMethod(appDelClass, objC.sel_getUid("webView:didCreateJavaScriptContext:forFrame:"), contextCreated, "v@:@:@");
objC.class_addMethod(appDelClass, objC.sel_getUid("webView:didFinishLoadForFrame:"), ready, "v@:@");
objC.class_addMethod(appDelClass, objC.sel_getUid("webView:createWebViewWithRequest:"), ui, "v@:@");
objC.class_addMethod(appDelClass, objC.sel_getUid("webView:runJavaScriptAlertPanelWithMessage:initiatedByFrame:"), dialogs[0], "v@:@:@");
objC.class_addMethod(appDelClass, objC.sel_getUid("webView:runJavaScriptConfirmPanelWithMessage:initiatedByFrame:"), dialogs[1], "v@:@:@");
objC.class_addMethod(appDelClass, objC.sel_getUid("webView:runJavaScriptTextInputPanelWithPrompt:defaultText:initiatedByFrame:"), dialogs[2], "v@:@:@");
objC.objc_registerClassPair(appDelClass);
long appDelObj = send(objC.objc_getClass("AppDelegate"), "alloc");
appDelPtr = new Pointer(appDelObj);
send(appDelPtr, "init");
send(appDelPtr,
"performSelectorOnMainThread:withObject:waitUntilDone:",
doMainSelector, null, 1
);
} else {
execute(new Runnable() {
@Override
public void run() {
appDidStart.callback(appDelPtr);
}
});
}
}
@Override
public void execute(Runnable command) {
QUEUE.add(command);
if (Thread.currentThread() == dispatchThread && Fn.activePresenter() == presenter) {
try {
process();
} catch (Exception ex) {
LOG.log(Level.SEVERE, "Cannot process " + command, ex);
}
} else {
send(appDelPtr,
"performSelectorOnMainThread:withObject:waitUntilDone:",
doMainSelector, null, 0
);
}
}
private void process() throws Exception {
Closeable c = presenter == null ? null : Fn.activate(presenter);
try {
for (;;) {
Runnable r = QUEUE.poll();
if (r == null) {
break;
}
r.run();
}
} finally {
if (c != null) {
c.close();
}
}
}
public interface ObjC extends Library {
public static ObjC INSTANCE = (ObjC) Native.loadLibrary("objc.A", ObjC.class);
public boolean class_addMethod(Pointer cls, Pointer name, Callback imp, String types);
public String class_getName(Pointer cls);
public String object_getClassName(Pointer cls);
public Pointer class_copyMethodList(Class cls, IntByReference outCount);
public Pointer objc_allocateClassPair(Pointer cls, String name, int additionalBytes);
public Pointer objc_getClass(String name);
public long objc_msgSend(Pointer theReceiver, Pointer theSelector, Object... arguments);
public Rct objc_msgSend_stret(Pointer theReceiver, Pointer theSelector, Object... arguments);
public void objc_registerClassPair(Pointer cls);
public Pointer sel_getUid(String name);
}
static long send(Pointer obj, String selector, Object... args) {
Pointer uid = ObjC.INSTANCE.sel_getUid(selector);
return ObjC.INSTANCE.objc_msgSend(obj, uid, args);
}
public static interface WebKit extends Library {
}
public void callback(Pointer self) throws Exception {
if (NSApp != null) {
process();
return;
}
ObjC objC = ObjC.INSTANCE;
long res = send(objC.objc_getClass("NSApplication"), "sharedApplication");
if (res == 0) {
System.err.print("Failed to initialized NSApplication... terminating...\n");
System.exit(1);
}
dispatchThread = Thread.currentThread();
NSApp = new Pointer(res);
send(NSApp, "setActivationPolicy:", 0);
send(NSApp, "setDelegate:", self);
res = send(NSApp, "run");
System.err.println("end res: " + res);
}
public final class AppDidStart implements Callback {
AppDidStart() {
}
public long callback(Pointer self) {
ObjC objC = ObjC.INSTANCE;
mainWindow = new Pointer(send(objC.objc_getClass("NSWindow"), "alloc"));
Pointer screen = new Pointer(send(objC.objc_getClass("NSScreen"), "mainScreen"));
Pointer uid = ObjC.INSTANCE.sel_getUid("frame");
Rct size = ObjC.INSTANCE.objc_msgSend_stret(screen, uid);
double height = size.height.doubleValue() * 0.9;
double width = size.width.doubleValue() * 0.9;
double x = size.width.doubleValue() * 0.05 + size.x.doubleValue();
double y = size.height.doubleValue() * 0.05 + size.y.doubleValue();
Rct r = new Rct(x, y, width, height);
int mode = 15;
int backingstoreBuffered = 2;
send(mainWindow,
"initWithContentRect:styleMask:backing:defer:",
r, mode, backingstoreBuffered, false
);
send(mainWindow, "setTitle:", nsString("Browser demo"));
Pointer webViewClass = objC.objc_getClass("WebView");
long webViewId = send(webViewClass, "alloc");
webView = new Pointer(webViewId);
send(webView, "init");
send(webView, "setFrameLoadDelegate:", self);
send(webView, "setUIDelegate:", self);
Pointer frame = new Pointer(send(webView, "mainFrame"));
Pointer urlClass = objC.objc_getClass("NSURL");
Pointer url = new Pointer(send(urlClass, "URLWithString:", nsString(page)));
Pointer requestClass = objC.objc_getClass("NSURLRequest");
Pointer request = new Pointer(send(requestClass, "alloc"));
send(request, "initWithURL:", url);
send(mainWindow, "setContentView:", webView);
send(frame, "loadRequest:", request);
send(mainWindow, "becomeFirstResponder");
send(mainWindow, "makeKeyAndOrderFront:", NSApp);
return 1;
}
}
static Pointer nsString(String bd) {
ObjC objC = ObjC.INSTANCE;
Pointer stringClass = objC.objc_getClass("NSString");
Pointer browserDemo = new Pointer(send(stringClass, "stringWithCString:encoding:", bd, 4));
return browserDemo;
}
public final class ContextCreated implements Callback {
ContextCreated() {
}
public void callback(Pointer webView, Pointer ctx, Pointer frame) {
frame = new Pointer(send(frame, "mainFrame"));
ctx = new Pointer(send(frame, "globalContext"));
jsContext = ctx;
if (onContext != null) {
onContext.run();
}
}
}
public final class Ready implements Callback {
Ready() {
}
public void callback(Pointer p1, Pointer frame) {
send(webView, "stringByEvaluatingJavaScriptFromString:", nsString("1 + 1"));
if (onPageLoad != null) {
onPageLoad.run();
}
}
}
public final class DialogHandler implements Callback {
private final int type;
public DialogHandler(int type) {
this.type = type;
}
public boolean alertOrConfirm(Pointer appDelegate, Pointer selector, Pointer webView, Pointer msg, Pointer frame) {
ObjC objC = ObjC.INSTANCE;
/*
System.err.println("webView: " + objC.object_getClassName(webView));
System.err.println("frame: " + objC.object_getClassName(frame));
System.err.println("msg: " + objC.object_getClassName(msg));
String text = new Pointer(send(msg, "UTF8String")).getString(0, "UTF-8");
System.err.println("msg: " + text);
*/
Pointer alert = new Pointer(send(objC.objc_getClass("NSAlert"), "alloc"));
send(alert, "init");
send(alert, "setMessageText:", msg);
send(alert, "addButtonWithTitle:", nsString("OK"));
if (type == 1) {
send(alert, "addButtonWithTitle:", nsString("Cancel"));
}
int res = ((int) send(alert, "runModal")) & 1;
return res == 0;
}
}
public final class UIDelegate implements Callback {
UIDelegate() {
}
public Pointer callback(Pointer appDelegate) {
ObjC objC = ObjC.INSTANCE;
Pointer uid = ObjC.INSTANCE.sel_getUid("frame");
Rct size = ObjC.INSTANCE.objc_msgSend_stret(mainWindow, uid);
double height = size.height.doubleValue() * 0.9;
double width = size.width.doubleValue() * 0.9;
double x = size.width.doubleValue() * 0.05 + size.x.doubleValue();
double y = size.height.doubleValue() * 0.05 + size.y.doubleValue();
Pointer window = new Pointer(send(objC.objc_getClass("NSWindow"), "alloc"));
Rct r = new Rct(x, y, width, height);
int mode = 15;
int backingstoreBuffered = 2;
send(window,
"initWithContentRect:styleMask:backing:defer:",
r, mode, backingstoreBuffered, false
);
send(window, "setTitle:", nsString("Browser demo"));
Pointer webViewClass = objC.objc_getClass("WebView");
long webViewId = send(webViewClass, "alloc");
Pointer webView = new Pointer(webViewId);
send(webView, "init");
send(window, "setContentView:", webView);
send(window, "makeKeyAndOrderFront:", (Object) null);
return webView;
}
}
public static final class Rct extends Structure implements Structure.ByValue {
public Flt x;
public Flt y;
public Flt width;
public Flt height;
public Rct() {
}
public Rct(double x, double y, double width, double height) {
this.x = new Flt(x);
this.y = new Flt(y);
this.width = new Flt(width);
this.height = new Flt(height);
}
@Override
protected List getFieldOrder() {
return Arrays.asList("x", "y", "width", "height");
}
}
public static final class Flt extends Number implements NativeMapped {
private static final boolean SMALL = Native.LONG_SIZE == 4;
private final double number;
public Flt() {
this(0);
}
public Flt(double d) {
number = d;
}
@Override
public float floatValue() {
return (float) number;
}
@Override
public double doubleValue() {
return number;
}
@Override
public int intValue() {
return (int) number;
}
@Override
public long longValue() {
return (long) number;
}
@Override
public Object fromNative(Object o, FromNativeContext fromNativeContext) {
return new Flt(((Number) o).doubleValue());
}
@Override
public Object toNative() {
return SMALL ? floatValue() : number;
}
@Override
public Class nativeType() {
return SMALL ? Float.class : Double.class;
}
@Override
public String toString() {
return Double.toString(number);
}
}
private static void ensureHttpAccess(URI page) {
if (!"http".equals(page.getScheme())) {
return;
}
ObjC objC = ObjC.INSTANCE;
final Pointer nsBundle = objC.objc_getClass("NSBundle");
final Pointer nsNumber = objC.objc_getClass("NSNumber");
final Pointer nsDictionary = objC.objc_getClass("NSMutableDictionary");
final Pointer mainBundle = new Pointer(send(nsBundle, "mainBundle"));
final Pointer info = new Pointer(send(mainBundle, "infoDictionary"));
final Pointer nsAppTransportSecurity = nsString("NSAppTransportSecurity");
final Pointer nsAllowArbitraryLoads = nsString("NSAllowsArbitraryLoads");
final long nsTrue = send(nsNumber, "numberWithBool:", 1);
final long rawDict = send(info, "objectForKey:", nsAppTransportSecurity);
final Pointer dict;
if (rawDict == 0) {
dict = new Pointer(send(nsDictionary, "dictionaryWithCapacity:", 1));
send(info, "setValue:forKey:", dict, nsAppTransportSecurity);
send(dict, "setObject:forKey:", nsTrue, nsAllowArbitraryLoads);
}
}
}
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