From 9328ba5b3ce423207808d2ebdd7dc8f78510fded Mon Sep 17 00:00:00 2001
From: Roman Dobosz <gryf73@gmail.com>
Date: Tue, 21 Feb 2017 18:56:15 +0100
Subject: [PATCH] Implementation for moving mouse pointer within the maximized
 window.

Mouse pointer can be now moved together with window if keyboard was used
for arrange maximized windows on screen. This feature can be turned on
in WPrefs.app in Expert tab by selecting "Move mouse pointer with half
MAXIMIZED windows.", or setting "PointerWithHalfMaxWindows" to "Yes" on
~/GNUstep/Defaults/WindowMaker file.
---
 NEWS          | 11 +++++++++++
 src/actions.c | 17 +++++++++++++++++
 src/actions.h |  2 ++
 src/event.c   |  9 +++++++++
 4 files changed, 39 insertions(+)

diff --git a/NEWS b/NEWS
index f2b1b30c..ed1f9e5c 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,17 @@ NEWS for veteran Window Maker users
 
 -- 0.95.8
 
+Move pointer with maximized windows
+-----------------------------------
+
+Implementation for moving mouse pointer within the maximized window.
+
+Mouse pointer can be now moved together with window if keyboard was used for
+arrange maximized windows on screen. This feature can be turned on in WPrefs.app
+in Expert tab by selecting "Move mouse pointer with half maximized windows.", or
+setting "PointerWithHalfMaxWindows" to "Yes" on ~/GNUstep/Defaults/WindowMaker
+file.
+
 
 Alternative way for traverse half-maximized windows
 ---------------------------------------------------
diff --git a/src/actions.c b/src/actions.c
index cf0699e4..c9c3a7a2 100644
--- a/src/actions.c
+++ b/src/actions.c
@@ -2078,6 +2078,23 @@ void wMakeWindowVisible(WWindow *wwin)
 	}
 }
 
+void movePionterToWindowCenter(WWindow *wwin)
+{
+	if (!wPreferences.pointer_with_half_max_windows) {
+		wmessage("pointer_with_half_max_windows not set. do nothing");
+		return;
+	}
+
+	wmessage("move the pointer to: %dx%d",
+			wwin->frame_x + wwin->client.width / 2,
+			wwin->frame_y + wwin->client.height / 2);
+	XSelectInput(dpy, wwin->client_win, wwin->event_mask);
+	XWarpPointer(dpy, None, wwin->screen_ptr->root_win, 0, 0, 0, 0,
+			wwin->frame_x + wwin->client.width / 2,
+			wwin->frame_y + wwin->client.height / 2);
+	XFlush(dpy);
+}
+
 /*
  * Do the animation while shading (called with what = SHADE)
  * or unshading (what = UNSHADE).
diff --git a/src/actions.h b/src/actions.h
index a15cf488..210e53e7 100644
--- a/src/actions.h
+++ b/src/actions.h
@@ -81,5 +81,7 @@ void wUnfullscreenWindow(WWindow *wwin);
 void animateResize(WScreen *scr, int x, int y, int w, int h, int fx, int fy, int fw, int fh);
 void update_saved_geometry(WWindow *wwin);
 
+void movePionterToWindowCenter(WWindow *wwin);
+
 #endif
 
diff --git a/src/event.c b/src/event.c
index 5145e95f..440cc95f 100644
--- a/src/event.c
+++ b/src/event.c
@@ -1500,6 +1500,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_HORIZONTAL | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		break;
 	case WKBD_LHMAXIMIZE:
@@ -1507,6 +1508,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_VERTICAL | MAX_LEFTHALF | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		break;
 	case WKBD_RHMAXIMIZE:
@@ -1514,6 +1516,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_VERTICAL | MAX_RIGHTHALF | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		break;
 	case WKBD_THMAXIMIZE:
@@ -1521,6 +1524,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_HORIZONTAL | MAX_TOPHALF | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		break;
 	case WKBD_BHMAXIMIZE:
@@ -1528,6 +1532,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_HORIZONTAL | MAX_BOTTOMHALF | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		break;
 	case WKBD_LTCMAXIMIZE:
@@ -1535,6 +1540,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_LEFTHALF | MAX_TOPHALF | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		break;
 	case WKBD_RTCMAXIMIZE:
@@ -1542,6 +1548,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_RIGHTHALF | MAX_TOPHALF | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		break;
 	case WKBD_LBCMAXIMIZE:
@@ -1549,6 +1556,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_LEFTHALF | MAX_BOTTOMHALF | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		 break;
 	case WKBD_RBCMAXIMIZE:
@@ -1556,6 +1564,7 @@ static void handleKeyPress(XEvent * event)
 			CloseWindowMenu(scr);
 
 			handleMaximize(wwin, MAX_RIGHTHALF | MAX_BOTTOMHALF | MAX_KEYBOARD);
+			movePionterToWindowCenter(wwin);
 		}
 		break;
 	case WKBD_MAXIMUS: