mirror of
https://github.com/JFormDesigner/FlatLaf.git
synced 2026-02-16 00:37:11 -06:00
Linux: use X11 window manager events to move window and to show window menu (right-click on window title bar), if custom window decorations are enabled (issue #482)
This commit is contained in:
Karl Tauber
@@ -20,6 +20,6 @@ plugins {
|
||||
|
||||
dependencies {
|
||||
implementation( project( ":flatlaf-core" ) )
|
||||
implementation( "net.java.dev.jna:jna:5.10.0" )
|
||||
implementation( "net.java.dev.jna:jna-platform:5.10.0" )
|
||||
implementation( "net.java.dev.jna:jna:5.12.1" )
|
||||
implementation( "net.java.dev.jna:jna-platform:5.12.1" )
|
||||
}
|
||||
|
||||
@@ -0,0 +1,135 @@
|
||||
/*
|
||||
* Copyright 2022 FormDev Software GmbH
|
||||
*
|
||||
* Licensed 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
|
||||
*
|
||||
* https://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 com.formdev.flatlaf.natives.jna.linux;
|
||||
|
||||
import java.awt.Window;
|
||||
import com.sun.jna.Native;
|
||||
import com.sun.jna.NativeLong;
|
||||
import com.sun.jna.Pointer;
|
||||
import com.sun.jna.platform.unix.X11;
|
||||
|
||||
/**
|
||||
* @author Karl Tauber
|
||||
* @since 2.5
|
||||
*/
|
||||
public class X11WmUtils
|
||||
{
|
||||
/**
|
||||
* Send _NET_WM_MOVERESIZE to window to initiate moving or resizing.
|
||||
*
|
||||
* Warning: Although the implementation of this method is (nearly) identical
|
||||
* to the C++ implementation, this one does not work correctly.
|
||||
* DO NOT USE.
|
||||
*
|
||||
* https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html#idm45446104441728
|
||||
* https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gdk/x11/gdksurface-x11.c#L3841-3881
|
||||
*/
|
||||
public static boolean xMoveOrResizeWindow( Window window, int x, int y, int direction ) {
|
||||
System.out.println( "---- move or resize window: " + x + "," + y );
|
||||
return sendEvent( window,
|
||||
"_NET_WM_MOVERESIZE",
|
||||
x,
|
||||
y,
|
||||
direction,
|
||||
X11.Button1, // left mouse button
|
||||
1 ); // source indication
|
||||
}
|
||||
|
||||
/**
|
||||
* Send _GTK_SHOW_WINDOW_MENU to window to show system window menu.
|
||||
*
|
||||
* Warning: Although the implementation of this method is (nearly) identical
|
||||
* to the C++ implementation, this one does not work correctly.
|
||||
* DO NOT USE.
|
||||
*
|
||||
* https://docs.gtk.org/gdk3/method.Window.show_window_menu.html
|
||||
* https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gdk/x11/gdksurface-x11.c#L4751-4801
|
||||
*/
|
||||
public static boolean xShowWindowMenu( Window window, int x, int y ) {
|
||||
System.out.println( "---- show window menu: " + x + "," + y );
|
||||
return sendEvent( window,
|
||||
"_GTK_SHOW_WINDOW_MENU",
|
||||
0, // device id TODO
|
||||
x,
|
||||
y,
|
||||
0,
|
||||
0 );
|
||||
}
|
||||
|
||||
private static boolean sendEvent( Window window, String atom_name,
|
||||
long data0, long data1, long data2, long data3, long data4 )
|
||||
{
|
||||
sun.awt.SunToolkit.awtLock();
|
||||
try {
|
||||
|
||||
// open display and get root window
|
||||
X11.Display display = X11.INSTANCE.XOpenDisplay( null );
|
||||
X11.Window root = X11.INSTANCE.XDefaultRootWindow( display );
|
||||
|
||||
// get X11 window ID for AWT window
|
||||
Pointer p = Native.getComponentPointer( window );
|
||||
long windowsId = Pointer.nativeValue( p );
|
||||
System.out.println( "WindowId = " + windowsId );
|
||||
|
||||
// ungrab pointer and keyboard to allow the window manager to grab them
|
||||
System.out.println( "Ungrab Pointer = " + X11Ext.INSTANCE.XUngrabPointer( display, new NativeLong( 0 ) ) );
|
||||
System.out.println( "Ungrab Keyboard = " + X11.INSTANCE.XUngrabKeyboard( display, new NativeLong( 0 ) ) );
|
||||
|
||||
// build event structure
|
||||
X11.Window w = new X11.Window( windowsId );
|
||||
X11.XEvent event = new X11.XEvent();
|
||||
event.type = X11.ClientMessage;
|
||||
event.setType( X11.XClientMessageEvent.class );
|
||||
event.xclient.type = X11.ClientMessage;
|
||||
event.xclient.serial = new NativeLong( 0 );
|
||||
event.xclient.send_event = 1;
|
||||
event.xclient.message_type = X11.INSTANCE.XInternAtom( display, atom_name, false );
|
||||
event.xclient.display = display;
|
||||
event.xclient.window = w;
|
||||
event.xclient.format = 32;
|
||||
event.xclient.data.setType( NativeLong[].class );
|
||||
event.xclient.data.l[0] = new NativeLong( data0 );
|
||||
event.xclient.data.l[1] = new NativeLong( data1 );
|
||||
event.xclient.data.l[2] = new NativeLong( data2 );
|
||||
event.xclient.data.l[3] = new NativeLong( data3 );
|
||||
event.xclient.data.l[4] = new NativeLong( data4 );
|
||||
|
||||
// send event
|
||||
System.out.println( "SendEvent = " + X11.INSTANCE.XSendEvent( display, root, 0,
|
||||
new NativeLong( X11.SubstructureNotifyMask | X11.SubstructureRedirectMask ), event ) );
|
||||
|
||||
System.out.println( "Flush = " + X11.INSTANCE.XFlush( display ) );
|
||||
System.out.println( "CloseDisplay = " + X11.INSTANCE.XCloseDisplay( display ) );
|
||||
System.out.println( "Done" );
|
||||
|
||||
} finally {
|
||||
sun.awt.SunToolkit.awtUnlock();
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
//----- interface X11Ext --------------------------------------------------
|
||||
|
||||
interface X11Ext
|
||||
extends X11
|
||||
{
|
||||
X11Ext INSTANCE = Native.load( "X11", X11Ext.class );
|
||||
|
||||
int XUngrabPointer( Display display, NativeLong time );
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user