Docker une fenêtre en JAVA avec JNA.

Bonjour a tous.
J'essaie de traduire ce code C en Java avec JNA.

Code:

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if(dock) { type = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DOCK", False); XChangeProperty( dpy, w, XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False), XInternAtom(dpy, "ATOM", False), 32, PropModeReplace, (unsigned char *)&type, 1 );   type = XInternAtom(dpy, "_NET_WM_STATE_ABOVE", False); XChangeProperty( dpy, w, XInternAtom(dpy, "_NET_WM_STATE", False), XInternAtom(dpy, "ATOM", False), 32, PropModeReplace, (unsigned char *)&type, 1 );   type = XInternAtom(dpy, "_NET_WM_STATE_STICKY", False); XChangeProperty( dpy, w, XInternAtom(dpy, "_NET_WM_STATE", False), XInternAtom(dpy, "ATOM", False), 32, PropModeAppend, (unsigned char *)&type, 1 );     desktop = 0xffffffff; XChangeProperty( dpy, w, XInternAtom(dpy, "_NET_WM_DESKTOP", False), XInternAtom(dpy, "CARDINAL", False), 32, PropModeReplace, (unsigned char *)&desktop, 1 ); }

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En Java pour fixer une fenetre en type dock par exemple :

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X11.Atom atomType = getAtom("_NET_WM_WINDOW_TYPE_DOCK"); x11.XChangeProperty(x11Display, // DISPLAY win, // FENETRE getAtom("_NET_WM_WINDOW_TYPE"), getAtom("ATOM"), 32, X11.PropModeReplace, atomType, // <-- 1);

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J'arrive a recuperer une valeur de type X11.Atom avec :

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X11.AtomByReference xa_ret_type_ref = new X11.AtomByReference(); ... X11.Atom xa_ret_type = xa_ret_type_ref.getValue();

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Mon probleme se situe au niveau de 'atomType' puisqu'il faut passer
la reference de ce type. L'erreur renvoye est logique :

Code:

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1 2	'incompatible types: Atom cannot be converted to Pointer'

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J'ai essaye de passer par le type 'Pointer' de JNA mais sans succes.
J'ai cherche et trouve des exemples de code pour passer la reference
avec JNA, mais rien qui puisse m'aider.
Si quelqu'un a une idee ou une piste :D
Merci par avance.

Salut.
Je suis sous mint XFCE et NetBean.:oops:
Bon j'ai reussi a passer la reference du type Atom avec :

Code:

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X11.Atom atomType = getAtom("_NET_WM_WINDOW_TYPE_DOCK"); NativeLongByReference longByRef = new NativeLongByReference(); longByRef.setValue(atomType);   x11.XChangeProperty( x11Display, win, getAtom("_NET_WM_WINDOW_TYPE"), X11.XA_ATOM, // <-- changement 32, X11.PropModeReplace, longByRef.getPointer(), // <-- 1);   x11.XFlush(x11Display);

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La fenetre se docke bien, la commande " wmctrl -l " affiche
un numero de bureau de -1 au meme titre que les composants XFCE.
Elle n''apparait plus dans la barre des taches, elle s'affiche
dans tous les bureaux. Par contre elle se positionne au dessus
des autres fenetres.:(
J'affiche le code exemple des que possible, pour ceux que ca interesse. ;)

Bon, le code pour docker une fenetre avec JavaFX et JNA

Code:

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package javax11test;   import com.sun.jna.Native; import com.sun.jna.NativeLong; import com.sun.jna.Pointer; import com.sun.jna.platform.unix.X11; import com.sun.jna.ptr.IntByReference; import com.sun.jna.ptr.NativeLongByReference; import com.sun.jna.ptr.PointerByReference; import java.util.HashMap; import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.scene.layout.StackPane; import javafx.stage.Stage; import javafx.stage.StageStyle;   public class JavaX11Test extends Application {   private static final int _NET_WM_STATE_REMOVE = 0; private static final int _NET_WM_STATE_ADD = 1; private static final int _NET_WM_STATE_TOGGLE = 2;   private X11 x11; private X11.Display x11Display; private X11.Window x11Window;   public static void main(String[] args) { launch(args); }   @Override public void start(Stage primaryStage) {   // ==== Init X11   x11 = X11.INSTANCE;   x11Display = x11.XOpenDisplay(null); if (x11Display == null) throw new Error("Can't open X Display");   x11Window = x11.XDefaultRootWindow(x11Display); if (x11Window == null) throw new Error("Can't open default root window");   // ==== Creation de la fenetre   Label lab = new Label(); lab.setText("Hello World");   StackPane root = new StackPane(); root.getChildren().add(lab);   Scene scene = new Scene(root, 200, 200);   // Enlever les bordures de la fenetre primaryStage.initStyle(StageStyle.TRANSPARENT);   primaryStage.setTitle("HelloWorld"); primaryStage.setScene(scene); primaryStage.show();   // ==== Docker la fenetre   // On recupere la fenetre X11.Window wind = getWindowProperty(X11.XA_WINDOW, getAtom("_NET_ACTIVE_WINDOW"));   // On la transforme en type dock // et on la glisse dessous les autres windowDock(wind); windowBelow(wind); }   // Docker une fentre public void windowDock(X11.Window win) {   X11.Atom atomType = getAtom("_NET_WM_WINDOW_TYPE_DOCK"); NativeLongByReference longByRef = new NativeLongByReference(); longByRef.setValue(atomType); x11.XChangeProperty( x11Display, win, getAtom("_NET_WM_WINDOW_TYPE"), X11.XA_ATOM, 32, X11.PropModeReplace, longByRef.getPointer(), 1); x11.XFlush(x11Display); }   // Glisser une fenetre au dessous de toutes les autres public int windowBelow(X11.Window win) { X11.XClientMessageEvent event; int maskVal = X11.SubstructureRedirectMask | X11.SubstructureNotifyMask; NativeLong mask = new NativeLong(maskVal); event = new X11.XClientMessageEvent(); event.type = X11.ClientMessage; event.serial = new NativeLong(0); event.send_event = 1; event.message_type = getAtom("_NET_WM_STATE"); event.window = win; event.format = 32; event.data.setType(NativeLong[].class); event.data.l[0] = new NativeLong(_NET_WM_STATE_ADD); event.data.l[1] = getAtom("_NET_WM_STATE_BELOW"); event.data.l[2] = new NativeLong(0); event.data.l[3] = new NativeLong(0); event.data.l[4] = new NativeLong(0); X11.XEvent e = new X11.XEvent(); e.setTypedValue(event); if (x11.XSendEvent(x11Display, x11Window, 0, mask, e) != 0) { x11.XFlush(x11Display); return X11.Success; } else throw new Error("Cannot send " + "_NET_WM_STATE_BELOW" + " event."); }   public X11.Atom getAtom(String name) { HashMap<String, X11.Atom> atomsHash = new HashMap<>(); X11.Atom atom = atomsHash.get(name); if (atom == null) { atom = x11.XInternAtom(x11Display, name, false); atomsHash.put(name, atom); } return atom; }   public X11.Window getWindowProperty(X11.Atom xa_prop_type, X11.Atom xa_prop_name) { byte[] property = getProperty(xa_prop_type, xa_prop_name); // Bytes to int Integer windowId; windowId = ((property[3] & 0xff) << 24) | ((property[2] & 0xff) << 16) | ((property[1] & 0xff) << 8) | ((property[0] & 0xff)); X11.Window x11Win = new X11.Window(windowId); return (x11Win); }   public byte[] getProperty(X11.Atom xa_prop_type, X11.Atom xa_prop_name) { X11.AtomByReference xa_ret_type_ref = new X11.AtomByReference(); IntByReference ret_format_ref = new IntByReference(); NativeLongByReference ret_nitems_ref = new NativeLongByReference(); NativeLongByReference ret_bytes_after_ref = new NativeLongByReference(); PointerByReference ret_prop_ref = new PointerByReference(); NativeLong long_offset = new NativeLong(0); NativeLong long_length = new NativeLong(4096 / 4); if (x11.XGetWindowProperty(x11Display, x11Window, xa_prop_name, long_offset, long_length, false, xa_prop_type, xa_ret_type_ref, ret_format_ref, ret_nitems_ref, ret_bytes_after_ref, ret_prop_ref) != X11.Success) { String prop_name = x11.XGetAtomName(x11Display, xa_prop_name); throw new Error("Cannot get " + prop_name + " property."); } X11.Atom xa_ret_type = xa_ret_type_ref.getValue(); Pointer ret_prop = ret_prop_ref.getValue(); if (xa_ret_type == null || xa_prop_type == null || !xa_ret_type.toNative().equals(xa_prop_type.toNative())) { x11.XFree(ret_prop); String prop_name = x11.XGetAtomName(x11Display, xa_prop_name); throw new Error("Invalid type of " + prop_name + " property"); } int ret_format = ret_format_ref.getValue(); long ret_nitems = ret_nitems_ref.getValue().longValue(); int nbytes; switch (ret_format) { case 32: nbytes = Native.LONG_SIZE; break; case 16: nbytes = Native.LONG_SIZE / 2; break; case 8: nbytes = 1; break; case 0: nbytes = 0; break; default: throw new Error("Invalid return format"); } int length = Math.min((int) ret_nitems * nbytes, 4096); byte[] ret = ret_prop.getByteArray(0, length); x11.XFree(ret_prop); return ret; } }

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Il y a aussi une fonction pour placer la fenetre au dessous des autres.
Je me suis tres largement inspire d'une API fournie avec
la librairie JNA qu'on peut trouver dans le dossier jna-master/
ici -> jna-master/contrib/x11/src/jnacontrib/x11/api/
;)

Salut.
A l'execution du code de temps a temps, c'est l'editeur
NetBean qui se docke 8O. Pourtant je recupere l'ID de
la fenetre active juste apres l'affichage de la scene:?
Je suis alle un peu plus loin pour recuperer l'ID de la
fenetre docker. Le message 'hello world' ca va un moment,
alors j'ai affiche une horloge:D
Je marque comme resolu.:)
Le code example pour Docker une fenetre avec JNA :

Code:

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/*****************************************************************  * JAVAX11TEST  *****************************************************************/ package javax11test;       /*****************************************************************  * IMPORTS  *****************************************************************/ import com.sun.jna.NativeLong; import com.sun.jna.Pointer; import com.sun.jna.platform.unix.X11; import com.sun.jna.ptr.IntByReference; import com.sun.jna.ptr.NativeLongByReference; import com.sun.jna.ptr.PointerByReference;   import java.io.UnsupportedEncodingException; import java.text.DateFormat; import java.text.SimpleDateFormat;   import java.util.Calendar; import java.util.HashMap; import java.util.Map;   import javafx.application.Application; import javafx.scene.Scene; import javafx.stage.Stage; import javafx.scene.control.Label; import javafx.scene.layout.StackPane; import javafx.stage.StageStyle; import javafx.util.Duration;   import javafx.animation.Animation; import javafx.animation.KeyFrame; import javafx.animation.Timeline;   import javafx.event.ActionEvent;       /*****************************************************************  * CLASS JavaX11Test  *****************************************************************/ public class JavaX11Test extends Application {   private static final int _NET_WM_STATE_ADD = 1;   private static X11.Atom ATOM_NET_WM_WINDOW_TYPE; private static X11.Atom ATOM_NET_WM_WINDOW_TYPE_DOCK; private static X11.Atom ATOM_NET_WM_STATE; private static X11.Atom ATOM_NET_WM_STATE_BELOW; private static X11.Atom ATOM_NET_CLIENT_LIST;   private final X11 x11; private final X11.Display x11Display; private final X11.Window x11RootWindow;   private Label label;       /*****************************************************************      * MAIN      * @param args      *****************************************************************/ public static void main(String[] args) {   launch(args);   }       /*****************************************************************      * CONSTRUCTEUR      *****************************************************************/ public JavaX11Test () {   x11 = X11.INSTANCE;   x11Display = x11.XOpenDisplay(null); if (x11Display == null) throw new Error("Can't open X Display");   x11RootWindow = x11.XDefaultRootWindow(x11Display); if (x11RootWindow == null) throw new Error("Can't open default root window");   ATOM_NET_WM_WINDOW_TYPE = x11.XInternAtom(x11Display, "_NET_WM_WINDOW_TYPE", false); ATOM_NET_WM_WINDOW_TYPE_DOCK = x11.XInternAtom(x11Display, "_NET_WM_WINDOW_TYPE_DOCK", false); ATOM_NET_WM_STATE = x11.XInternAtom(x11Display, "_NET_WM_STATE", false); ATOM_NET_WM_STATE_BELOW = x11.XInternAtom(x11Display, "_NET_WM_STATE_BELOW", false); ATOM_NET_CLIENT_LIST = x11.XInternAtom(x11Display, "_NET_CLIENT_LIST", false);   }       /*****************************************************************      * START      *****************************************************************/ @Override public void start(Stage primaryStage) {   label = new Label(); label.setStyle( "-fx-font-smoothing-type: lcd;" + "-fx-text-fill: black;" + "-fx-font-weight: bold;" + "-fx-font-size: 16;");   StackPane root = new StackPane(); root.getChildren().add(label);   Scene scene = new Scene(root, 100, 50);   primaryStage.initStyle(StageStyle.UNDECORATED);   primaryStage.setTitle("HelloWorld"); primaryStage.setX(10); primaryStage.setY(200); primaryStage.setScene(scene);   MakeClock();   primaryStage.show();   String className = getClass().getName();   int[] windowsIDList; int windowID;   windowsIDList = getWindowsIDList(); windowID = findWindowIDClass(windowsIDList, className);   X11.Window wind = new X11.Window(windowID);   windowDock(wind); windowBelow(wind);   }       /*****************************************************************      * MAKECLOCK      *****************************************************************/ public void MakeClock() {   Timeline digitalTime = new Timeline(   new KeyFrame(Duration.seconds(0), (ActionEvent actionEvent) -> {   DateFormat dateFormat = new SimpleDateFormat("HH:mm:ss"); Calendar cal = Calendar.getInstance();   label.setText(dateFormat.format(cal.getTime()));   }), new KeyFrame(Duration.seconds(1))   );   digitalTime.setCycleCount(Animation.INDEFINITE); digitalTime.play();   }       /*****************************************************************      * WINDOWDOCK      * @param win      *****************************************************************/ public void windowDock(X11.Window win) {   X11.Atom atomType = ATOM_NET_WM_WINDOW_TYPE_DOCK; NativeLongByReference longByRef = new NativeLongByReference(); longByRef.setValue(atomType);   x11.XChangeProperty( x11Display, win, ATOM_NET_WM_WINDOW_TYPE, X11.XA_ATOM, 32, X11.PropModeReplace, longByRef.getPointer(), 1); x11.XFlush(x11Display);   }       /*****************************************************************      * WINDOWBELOW      * @param win      * @return      *****************************************************************/ public int windowBelow(X11.Window win) {   X11.XClientMessageEvent event;   int maskVal = X11.SubstructureRedirectMask | X11.SubstructureNotifyMask; NativeLong mask = new NativeLong(maskVal);   event = new X11.XClientMessageEvent(); event.type = X11.ClientMessage; event.serial = new NativeLong(0); event.send_event = 1; event.message_type = ATOM_NET_WM_STATE; event.window = win; event.format = 32; event.data.setType(NativeLong[].class); event.data.l[0] = new NativeLong(_NET_WM_STATE_ADD); event.data.l[1] = ATOM_NET_WM_STATE_BELOW; event.data.l[2] = new NativeLong(0); event.data.l[3] = new NativeLong(0); event.data.l[4] = new NativeLong(0);   X11.XEvent e = new X11.XEvent(); e.setTypedValue(event);   if (x11.XSendEvent(x11Display, x11RootWindow, 0, mask, e) != 0) {   x11.XFlush(x11Display); return X11.Success;   } else   throw new Error("Cannot send " + "_NET_WM_STATE_BELOW" + " event.");   }       /*****************************************************************      * FINDWINDOWIDCLASS      * @param winsIDList      * @param className      * @return      *****************************************************************/ public int findWindowIDClass(int[] winsIDList, String className) {   X11.Window win; String name;   for (int i = 0; i < winsIDList.length; i++) {   win = new X11.Window(winsIDList[i]); name = getWindowClass(win);   if (name.contains(className) == true ) return winsIDList[i];   }   return 0; }       /*****************************************************************      * FINDWINDOWIDCLASS      * @param window      * @return      *****************************************************************/ public String getWindowClass(X11.Window window) {   try {   String className; byte[] bytes = getProperty(window, X11.XA_STRING, X11.XA_WM_CLASS);   if (bytes == null) throw new Error("getProperty : bytes[] = null");   for (int i = 0; i < bytes.length; i++) {   if (bytes[i] == '\0') bytes[i] = '.';   }   className = new String(bytes, "UTF8");   return className;   } catch (UnsupportedEncodingException e) { throw new Error(e); } }       /*****************************************************************      * GETIDAllWINDOWS      * @return      *****************************************************************/ public int[] getWindowsIDList() {   byte[] bytes = getProperty(x11RootWindow, X11.XA_WINDOW, ATOM_NET_CLIENT_LIST); int[] winsIDList = new int[bytes.length / X11.Window.SIZE];   if (winsIDList.length == 0) throw new Error("getProperty : winsIDList[].length = 0");   for (int i = 0; i < winsIDList.length; i++) {   winsIDList[i] = ((bytes[3 + (X11.XID.SIZE * i)] & 0xff) << 24) | ((bytes[2 + (X11.XID.SIZE * i)] & 0xff) << 16) | ((bytes[1 + (X11.XID.SIZE * i)] & 0xff) << 8) | ((bytes[(X11.XID.SIZE * i)] & 0xff));   }   return winsIDList;   }       /*****************************************************************      * GETPROPERTY      * @param window      * @param xa_prop_type      * @param xa_prop_name      * @return      *****************************************************************/ public byte[] getProperty(X11.Window window, X11.Atom xa_prop_type, X11.Atom xa_prop_name) {   IntByReference ret_format_ref = new IntByReference(); NativeLongByReference ret_nitems_ref = new NativeLongByReference(); PointerByReference ret_prop_ref = new PointerByReference();   x11.XGetWindowProperty( x11Display, window, xa_prop_name, new NativeLong(0), new NativeLong(1024), false, xa_prop_type, new X11.AtomByReference(), ret_format_ref, ret_nitems_ref, new NativeLongByReference(), ret_prop_ref);   Pointer ret_prop = ret_prop_ref.getValue(); int ret_format = ret_format_ref.getValue(); long ret_nitems = ret_nitems_ref.getValue().longValue();   Map<Integer, Integer> nbytes = new HashMap<>(); nbytes.put(32, 8); nbytes.put(16, 4); nbytes.put(8, 1); nbytes.put(0, 0);   int length = Math.min((int) ret_nitems * nbytes.get(ret_format), 4096); byte[] ret = ret_prop.getByteArray(0, length);   x11.XFree(ret_prop);   if (ret.length == 0) throw new Error("getProperty : byte[].length = 0");   return ret; }   } // END OF CLASS JavaX11Test

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