From 47a60e0f8496e6d2d9e713cacd3bd07439c015ed Mon Sep 17 00:00:00 2001 From: "dgp@users.sourceforge.net" Date: Mon, 1 Apr 2013 16:27:46 +0000 Subject: Runtime check for Xkb support in X server. Contributed patch from Brian Griffin. --- generic/tkInt.h | 1 + unix/tkUnixEvent.c | 27 ++++++++++++++++++++++++++- unix/tkUnixKey.c | 34 ++++++++++++++++++++-------------- 3 files changed, 47 insertions(+), 15 deletions(-) diff --git a/generic/tkInt.h b/generic/tkInt.h index 9a36e1e..74fd351 100644 --- a/generic/tkInt.h +++ b/generic/tkInt.h @@ -570,6 +570,7 @@ typedef struct TkDisplay { #define TK_DISPLAY_USE_IM (1 << 1) #define TK_DISPLAY_WM_TRACING (1 << 3) #define TK_DISPLAY_IN_WARP (1 << 4) +#define TK_DISPLAY_USE_XKB (1 << 5) /* * One of the following structures exists for each error handler created by a diff --git a/unix/tkUnixEvent.c b/unix/tkUnixEvent.c index 59fba29..5e5374a 100644 --- a/unix/tkUnixEvent.c +++ b/unix/tkUnixEvent.c @@ -12,6 +12,7 @@ #include "tkUnixInt.h" #include +#include /* * The following static indicates whether this module has been initialized in @@ -116,7 +117,30 @@ TkpOpenDisplay( CONST char *displayNameStr) { TkDisplay *dispPtr; - Display *display = XOpenDisplay(displayNameStr); + Display *display; + int event = 0; + int error = 0; + int major = 1; + int minor = 0; + int reason = 0; + unsigned int use_xkb = 0; + + /* + ** Bug [3607830]: Before using Xkb, it must be initialized and confirmed + ** that the serve supports it. The XkbOpenDisplay call + ** will perform this check and return NULL if the extension + ** is not supported. + */ + display = XkbOpenDisplay(displayNameStr, &event, &error, &major, &minor, &reason); + + if (display == NULL) { + /*fprintf(stderr,"event=%d error=%d major=%d minor=%d reason=%d\nDisabling xkb\n", + event, error, major, minor, reason);*/ + display = XOpenDisplay(displayNameStr); + } else { + use_xkb = TK_DISPLAY_USE_XKB; + /*fprintf(stderr, "Using xkb %d.%d\n", major, minor);*/ + } if (display == NULL) { return NULL; @@ -124,6 +148,7 @@ TkpOpenDisplay( dispPtr = (TkDisplay *) ckalloc(sizeof(TkDisplay)); memset(dispPtr, 0, sizeof(TkDisplay)); dispPtr->display = display; + dispPtr->flags |= use_xkb; #ifdef TK_USE_INPUT_METHODS OpenIM(dispPtr); #endif diff --git a/unix/tkUnixKey.c b/unix/tkUnixKey.c index b7fc97f..27425ff 100644 --- a/unix/tkUnixKey.c +++ b/unix/tkUnixKey.c @@ -11,7 +11,17 @@ */ #include "tkInt.h" + +/* +** Bug [3607830]: Before using Xkb, it must be initialized. TkpOpenDisplay +** does this and sets the USE_XKB flag if xkb is supported. +** (should this be function ptr?) +*/ #include +#define TkKeycodeToKeysym(D,K,G,L) \ + ((D)->flags & TK_DISPLAY_USE_XKB) ? \ + XkbKeycodeToKeysym((D)->display,K,G,L) : \ + XKeycodeToKeysym((D)->display,K,L) /* * Prototypes for local functions defined in this file: @@ -212,7 +222,7 @@ TkpGetString( /* * When mapping from a keysym to a keycode, need information about the - * modifier state to be used so that when they call XkbKeycodeToKeysym taking + * modifier state to be used so that when they call TkKeycodeToKeysym taking * into account the xkey.state, they will get back the original keysym. */ @@ -222,27 +232,23 @@ TkpSetKeycodeAndState( KeySym keySym, XEvent *eventPtr) { - Display *display; + TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr; int state; KeyCode keycode; - display = Tk_Display(tkwin); - if (keySym == NoSymbol) { keycode = 0; } else { - keycode = XKeysymToKeycode(display, keySym); + keycode = XKeysymToKeycode(dispPtr->display, keySym); } + eventPtr->xkey.keycode = keycode; if (keycode != 0) { for (state = 0; state < 4; state++) { - if (XkbKeycodeToKeysym(display, keycode, 0, state) == keySym) { + if (XLookupKeysym(&eventPtr->xkey, state) == keySym) { if (state & 1) { eventPtr->xkey.state |= ShiftMask; } if (state & 2) { - TkDisplay *dispPtr; - - dispPtr = ((TkWindow *) tkwin)->dispPtr; eventPtr->xkey.state |= dispPtr->modeModMask; } break; @@ -325,7 +331,7 @@ TkpGetKeySym( && (eventPtr->xkey.state & LockMask))) { index += 1; } - sym = XkbKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode, 0, + sym = TkKeycodeToKeysym(dispPtr, eventPtr->xkey.keycode, 0, index); /* @@ -340,7 +346,7 @@ TkpGetKeySym( || ((sym >= XK_Agrave) && (sym <= XK_Odiaeresis)) || ((sym >= XK_Ooblique) && (sym <= XK_Thorn)))) { index &= ~1; - sym = XkbKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode, + sym = TkKeycodeToKeysym(dispPtr, eventPtr->xkey.keycode, 0, index); } } @@ -351,7 +357,7 @@ TkpGetKeySym( */ if ((index & 1) && (sym == NoSymbol)) { - sym = XkbKeycodeToKeysym(dispPtr->display, eventPtr->xkey.keycode, + sym = TkKeycodeToKeysym(dispPtr, eventPtr->xkey.keycode, 0, index & ~1); } return sym; @@ -401,7 +407,7 @@ TkpInitKeymapInfo( if (*codePtr == 0) { continue; } - keysym = XkbKeycodeToKeysym(dispPtr->display, *codePtr, 0, 0); + keysym = TkKeycodeToKeysym(dispPtr, *codePtr, 0, 0); if (keysym == XK_Shift_Lock) { dispPtr->lockUsage = LU_SHIFT; break; @@ -427,7 +433,7 @@ TkpInitKeymapInfo( if (*codePtr == 0) { continue; } - keysym = XkbKeycodeToKeysym(dispPtr->display, *codePtr, 0, 0); + keysym = TkKeycodeToKeysym(dispPtr, *codePtr, 0, 0); if (keysym == XK_Mode_switch) { dispPtr->modeModMask |= ShiftMask << (i/modMapPtr->max_keypermod); } -- cgit v0.12