1 | /* gcc -o cursor-manager `pkg-config --cflags --libs gtk+-3.0 gtk+-x11-3.0 xi xfixes` cursor-manager.c */ |
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2 | #include <stdio.h> |
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3 | #include <gtk/gtk.h> |
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4 | #include <gdk/gdkx.h> |
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5 | #include <X11/extensions/XInput2.h> |
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6 | #include <X11/extensions/Xfixes.h> |
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7 | |
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8 | static gboolean cursor_shown = TRUE; |
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9 | |
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10 | static GdkFilterReturn |
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11 | raw_event_filter (GdkXEvent *xevent, |
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12 | GdkEvent *event, |
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13 | gpointer user_data) |
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14 | { |
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15 | GdkDisplay *display; |
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16 | GdkScreen *screen; |
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17 | XEvent *ev = xevent; |
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18 | XIEvent *xiev; |
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19 | |
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20 | if (ev->type != GenericEvent) |
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21 | return GDK_FILTER_CONTINUE; |
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22 | |
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23 | xiev = ev->xcookie.data; |
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24 | display = gdk_display_get_default (); |
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25 | screen = gdk_display_get_default_screen (display); |
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26 | |
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27 | switch (xiev->evtype) |
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28 | { |
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29 | case XI_RawTouchBegin: |
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30 | case XI_RawTouchUpdate: |
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31 | if (cursor_shown) |
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32 | { |
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33 | XFixesHideCursor (GDK_DISPLAY_XDISPLAY (display), |
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34 | GDK_WINDOW_XID (gdk_screen_get_root_window (screen))); |
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35 | cursor_shown = FALSE; |
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36 | } |
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37 | break; |
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38 | case XI_RawButtonPress: |
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39 | case XI_RawButtonRelease: |
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40 | case XI_RawMotion: |
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41 | if (!cursor_shown) |
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42 | { |
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43 | XFixesShowCursor (GDK_DISPLAY_XDISPLAY (display), |
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44 | GDK_WINDOW_XID (gdk_screen_get_root_window (screen))); |
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45 | cursor_shown = TRUE; |
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46 | } |
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47 | break; |
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48 | default: |
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49 | break; |
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50 | } |
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51 | |
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52 | return GDK_FILTER_CONTINUE; |
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53 | } |
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54 | |
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55 | int |
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56 | main (int argc, char *argv[]) |
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57 | { |
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58 | GdkRGBA transparent = { 0 }; |
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59 | XIEventMask mask; |
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60 | guchar *evmask; |
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61 | GtkWidget *window; |
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62 | GdkScreen *screen; |
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63 | cairo_region_t *region; |
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64 | GdkCursor *cursor; |
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65 | Display *xdisplay; |
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66 | GdkDisplay *display; |
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67 | |
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68 | gtk_init (NULL, NULL); |
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69 | |
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70 | screen = gdk_screen_get_default (); |
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71 | |
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72 | evmask = g_new0 (guchar, XIMaskLen (XI_LASTEVENT)); |
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73 | XISetMask (evmask, XI_RawTouchBegin); |
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74 | XISetMask (evmask, XI_RawTouchEnd); |
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75 | XISetMask (evmask, XI_RawTouchUpdate); |
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76 | XISetMask (evmask, XI_RawButtonPress); |
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77 | XISetMask (evmask, XI_RawButtonRelease); |
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78 | XISetMask (evmask, XI_RawMotion); |
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79 | |
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80 | mask.deviceid = XIAllMasterDevices; |
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81 | mask.mask_len = sizeof (evmask); |
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82 | mask.mask = evmask; |
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83 | |
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84 | XISelectEvents (GDK_SCREEN_XDISPLAY (screen), |
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85 | GDK_WINDOW_XID (gdk_screen_get_root_window (screen)), |
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86 | &mask, 1); |
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87 | |
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88 | gdk_window_add_filter (NULL, raw_event_filter, window); |
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89 | |
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90 | gtk_main (); |
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91 | } |
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