misc vnc fixes

1 files changed, 101 insertions, 7 deletions

diff --git a/vnc.c b/vnc.c
index 5afdcfc..0d488f0 100644
--- a/vnc.c
+++ b/vnc.c
@@ -7,6 +7,9 @@
 #include <locale.h>
 #include <signal.h>
 
+#include <X11/X.h>
+#include <X11/Xlib.h>
+
 #include <gdk/gdk.h>
 #include <gdk/gdkx.h>
 #include <gtk/gtk.h>
@@ -31,6 +34,7 @@ struct vnc_window {
     GtkWidget  *win;
     GtkWidget  *draw;
     GdkCursor  *on,*off;
+    int        filter_installed;
     /* x11 */
     XImage     *ximage;
     void       *shm;
@@ -50,6 +54,12 @@ rfbKeySym linux_uskbd[][2] = {
 static int linux_uskbd_size = sizeof(linux_uskbd)/sizeof(linux_uskbd[0]);
 
 /* ------------------------------------------------------------------ */
+/* prototypes                                                         */
+
+static GdkFilterReturn event_filter(GdkXEvent *gdkxevent, GdkEvent *gtkevent,
+				    gpointer data);
+
+/* ------------------------------------------------------------------ */
 /* helper functions                                                   */
 
 static GdkCursor* empty_cursor(void)
@@ -111,6 +121,8 @@ static void vnc_release(struct vnc_window *vnc)
     if (vnc->client)
 	rfbClientCleanup(vnc->client);
 #endif
+    if (vnc->filter_installed)
+	gdk_window_remove_filter(vnc->draw->window, event_filter, vnc);
     if (vnc->id)
 	g_source_destroy(g_main_context_find_source_by_id
 			 (g_main_context_default(), vnc->id));
@@ -133,6 +145,12 @@ static rfbBool vnc_resize(rfbClient* client)
 		__FUNCTION__, client->width, client->height);
 
     if (vnc->ximage) {
+	if (vnc->ximage->width  == client->width &&
+	    vnc->ximage->height == client->height) {
+	    if (vnc->debug)
+		fprintf(stderr, "%s: no size change, early exit\n", __FUNCTION__);
+	    return TRUE;
+	}
 	x11_destroy_ximage(vnc->dpy, vnc->ximage, vnc->shm);
 	vnc->ximage = NULL;
     }
@@ -288,12 +306,20 @@ static gboolean expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer dat
 
     if (NULL == vnc->ximage)
 	return FALSE;
+#if 0
     vnc_blit(vnc, "expose", event->area.x, event->area.y,
 	     event->area.width, event->area.height);
+#else
+    SendFramebufferUpdateRequest(vnc->client,
+				 event->area.x, event->area.y,
+				 event->area.width, event->area.height,
+				 FALSE);
+#endif
     return TRUE;
 }
 
-static void send_mouse(struct vnc_window *vnc, int x, int y, int x11state)
+static void send_mouse(struct vnc_window *vnc, int x, int y,
+		       int x11state, int x11press, int x11release)
 {
     int rfbstate = 0;
 
@@ -304,12 +330,27 @@ static void send_mouse(struct vnc_window *vnc, int x, int y, int x11state)
     if (x11state & Button3Mask)
 	rfbstate |= rfbButton3Mask;
 
+    if (x11press == Button1)
+	rfbstate |= rfbButton1Mask;
+    if (x11press == Button2)
+	rfbstate |= rfbButton2Mask;
+    if (x11press == Button3)
+	rfbstate |= rfbButton3Mask;
+
+    if (x11release == Button1)
+	rfbstate &= ~rfbButton1Mask;
+    if (x11release == Button2)
+	rfbstate &= ~rfbButton2Mask;
+    if (x11release == Button3)
+	rfbstate &= ~rfbButton3Mask;
+    
     if (vnc->debug)
 	fprintf(stderr,"%s: +%d+%d x11state 0x%x rfbstate 0x%x\n",
 		__FUNCTION__, x, y, x11state, rfbstate);
     SendPointerEvent(vnc->client, x, y, rfbstate);
 }
 
+#if 0
 static gboolean button_cb(GtkWidget *widget, GdkEventButton *event,
 			  gpointer data)
 {
@@ -325,6 +366,7 @@ static gboolean motion_cb(GtkWidget *widget, GdkEventMotion *event,
     send_mouse(vnc, event->x, event->y, event->state);
     return TRUE;
 }
+#endif
 
 static gboolean key_cb_local(GtkWidget *widget, GdkEventKey *event,
 			     gpointer data)
@@ -362,11 +404,49 @@ static gboolean key_cb_uskbd(GtkWidget *widget, GdkEventKey *event,
     return TRUE;
 }
 
+static GdkFilterReturn event_filter(GdkXEvent *gdkxevent, GdkEvent *gtkevent,
+				    gpointer data)
+{
+    struct vnc_window *vnc = data;
+    XEvent *xevent = gdkxevent;
+
+    switch (xevent->type) {
+    case ButtonPress:
+	send_mouse(vnc, xevent->xbutton.x, xevent->xbutton.y,
+		   xevent->xbutton.state, xevent->xbutton.button, 0);
+	return GDK_FILTER_REMOVE;
+    case ButtonRelease:
+	send_mouse(vnc, xevent->xbutton.x, xevent->xbutton.y,
+		   xevent->xbutton.state, 0, xevent->xbutton.button);
+	return GDK_FILTER_REMOVE;
+    case MotionNotify:
+	send_mouse(vnc, xevent->xmotion.x, xevent->xmotion.y,
+		   xevent->xmotion.state, 0, 0);
+	return GDK_FILTER_REMOVE;
+
+    case KeymapNotify:
+	fprintf(stderr, "%s: KeymapNotify\n", __FUNCTION__);
+	return GDK_FILTER_REMOVE;
+
+    case Expose:            // 12
+    case MapNotify:         // 19
+    case ConfigureNotify:   // 22
+    case PropertyNotify:    // 28
+    case ClientMessage:     // 33
+    case 94:
+	/* do not log it */
+	return GDK_FILTER_CONTINUE;
+    default:
+	fprintf(stderr, "%s: unhandled: type %d\n", __FUNCTION__, xevent->type);
+	return GDK_FILTER_CONTINUE;
+    }
+}
+
 /* ------------------------------------------------------------------ */
 /* public API functions                                               */
 
-GtkWidget *vnc_open(char *hostname, int displayno,
-		    int standalone, int uskbd, int debug)
+GtkWidget *vnc_open(char *hostname, int displayno, unsigned long flags,
+		    int debug_level)
 {
     char display[128];
     char *argv[] = { "vnc-client", display, NULL };
@@ -378,9 +458,9 @@ GtkWidget *vnc_open(char *hostname, int displayno,
     if (NULL == vnc)
 	goto err;
     memset(vnc,0,sizeof(*vnc));
-    vnc->standalone = standalone;
-    vnc->debug      = debug;
-    debug_libvnc    = debug;
+    vnc->standalone = (flags & VNC_FLAG_STANDALONE);
+    vnc->debug      = debug_level;
+    debug_libvnc    = debug_level;
 
     /* x11 */
     vnc->dpy = gdk_x11_display_get_xdisplay(gdk_display_get_default());
@@ -434,13 +514,15 @@ GtkWidget *vnc_open(char *hostname, int displayno,
     gtk_widget_set_double_buffered(vnc->draw, FALSE);
     g_signal_connect(G_OBJECT(vnc->draw), "expose-event",
 		     G_CALLBACK(expose_cb), vnc);
+#if 0
     g_signal_connect(G_OBJECT(vnc->draw), "button-press-event",
 		     G_CALLBACK(button_cb), vnc);
     g_signal_connect(G_OBJECT(vnc->draw), "button-release-event",
 		     G_CALLBACK(button_cb), vnc);
     g_signal_connect(G_OBJECT(vnc->draw), "motion-notify-event",
 		     G_CALLBACK(motion_cb), vnc);
-    if (uskbd) {
+#endif
+    if (flags & VNC_FLAG_US_KBD) {
 	g_signal_connect(G_OBJECT(vnc->draw), "key-press-event",
 			 G_CALLBACK(key_cb_uskbd), vnc);
 	g_signal_connect(G_OBJECT(vnc->draw), "key-release-event",
@@ -455,6 +537,18 @@ GtkWidget *vnc_open(char *hostname, int displayno,
     /* show window */
     gtk_widget_show_all(vnc->win);
     vnc_window_conf(vnc);
+
+    /* X11 lowlevel stuff (needs window handle) */
+#if 0
+    XSelectInput(vnc->dpy,
+		 gdk_x11_drawable_get_xid(vnc->draw->window),
+		 ButtonPressMask   |
+		 ButtonReleaseMask |
+		 PointerMotionMask |
+		 KeymapStateMask);
+#endif
+    gdk_window_add_filter(vnc->draw->window, event_filter, vnc);
+    vnc->filter_installed = 1;
     return vnc->win;
 
  err: