i18nmethod.c

来自「linux 下的 oxim 输入法,简单易用.」· C语言 代码 · 共 1,154 行 · 第 1/3 页

                            i18n_core->address.im_window,
                            SelectionRequest,
                            SelectionRequest,
                            WaitXSelectionRequest,
                            (XPointer)ims);
    XFlush(dpy);
    return True;
}

static Status xi18n_closeIM(XIMS ims)
{
    Xi18n i18n_core = ims->protocol;
    Display *dpy = i18n_core->address.dpy;

    DeleteXi18nAtom(i18n_core);
    if (!i18n_core->methods.end (ims))
        return False;
    
    _XUnregisterFilter (dpy,
                        i18n_core->address.im_window,
                        WaitXSelectionRequest,
                        (XPointer)ims);
    XFree (i18n_core->address.im_name);
    XFree (i18n_core->address.im_locale);
    XFree (i18n_core->address.im_addr);
    XFree (i18n_core);
    return True;
}

static char *xi18n_setIMValues (XIMS ims, XIMArg *args)
{
    Xi18n i18n_core = ims->protocol;
    char *ret;

    if ((ret = ParseArgs (i18n_core, I18N_SET, args)) != NULL)
        return ret;
    /*endif*/
    return NULL;
}

static char *xi18n_getIMValues (XIMS ims, XIMArg *args)
{
    Xi18n i18n_core = ims->protocol;
    char *ret;

    if ((ret = ParseArgs (i18n_core, I18N_GET, args)) != NULL)
        return ret;
    /*endif*/
    return NULL;
}

static void EventToWireEvent (XEvent *ev, xEvent *event,
			      CARD16 *serial, Bool byte_swap)
{
    FrameMgr fm;
    extern XimFrameRec wire_keyevent_fr[];
    extern XimFrameRec short_fr[];
    BYTE b;
    CARD16 c16;
    CARD32 c32;

    *serial = (CARD16)(ev->xany.serial >> 16);
    switch (ev->type) {
      case KeyPress:
      case KeyRelease:
	{
	    XKeyEvent *kev = (XKeyEvent*)ev;
	    /* create FrameMgr */
	    fm = FrameMgrInit(wire_keyevent_fr, (char *)(&(event->u)), byte_swap);

	    /* set values */
	    b = (BYTE)kev->type;          FrameMgrPutToken(fm, b);
	    b = (BYTE)kev->keycode;       FrameMgrPutToken(fm, b);
	    c16 = (CARD16)(kev->serial & (unsigned long)0xffff);
					  FrameMgrPutToken(fm, c16);
	    c32 = (CARD32)kev->time;      FrameMgrPutToken(fm, c32);
	    c32 = (CARD32)kev->root;      FrameMgrPutToken(fm, c32);
	    c32 = (CARD32)kev->window;    FrameMgrPutToken(fm, c32);
	    c32 = (CARD32)kev->subwindow; FrameMgrPutToken(fm, c32);
	    c16 = (CARD16)kev->x_root;    FrameMgrPutToken(fm, c16);
	    c16 = (CARD16)kev->y_root;    FrameMgrPutToken(fm, c16);
	    c16 = (CARD16)kev->x;         FrameMgrPutToken(fm, c16);
	    c16 = (CARD16)kev->y;         FrameMgrPutToken(fm, c16);
	    c16 = (CARD16)kev->state;     FrameMgrPutToken(fm, c16);
	    b = (BYTE)kev->same_screen;   FrameMgrPutToken(fm, b);
	}
	break;
      default:
	  /* create FrameMgr */
	  fm = FrameMgrInit(short_fr, (char *)(&(event->u.u.sequenceNumber)),
			    byte_swap);
	  c16 = (CARD16)(ev->xany.serial & (unsigned long)0xffff);
	  FrameMgrPutToken(fm, c16);
	  break;
    }
    /* free FrameMgr */
    FrameMgrFree(fm);
}

static Status xi18n_forwardEvent (XIMS ims, XPointer xp)
{
    Xi18n i18n_core = ims->protocol;
    IMForwardEventStruct *call_data = (IMForwardEventStruct *)xp;
    FrameMgr fm;
    extern XimFrameRec forward_event_fr[];
    register int total_size;
    unsigned char *reply = NULL;
    unsigned char *replyp;
    CARD16 serial;
    int event_size;
    Xi18nClient *client;

    client = (Xi18nClient *) _Xi18nFindClient (i18n_core, call_data->connect_id);

    /* create FrameMgr */
    fm = FrameMgrInit (forward_event_fr,
                       NULL,
                       _Xi18nNeedSwap (i18n_core, call_data->connect_id));

    total_size = FrameMgrGetTotalSize (fm);
    event_size = sizeof (xEvent);
    reply = (unsigned char *) malloc (total_size + event_size);
    if (!reply)
    {
        _Xi18nSendMessage (ims,
                           call_data->connect_id,
                           XIM_ERROR,
                           0,
                           0,
                           0);
        return False;
    }
    /*endif*/
    memset (reply, 0, total_size + event_size);
    FrameMgrSetBuffer (fm, reply);
    replyp = reply;

    call_data->sync_bit = 1; 	/* always sync */
    client->sync = True;

    FrameMgrPutToken (fm, call_data->connect_id);
    FrameMgrPutToken (fm, call_data->icid);
    FrameMgrPutToken (fm, call_data->sync_bit);

    replyp += total_size;
    EventToWireEvent (&(call_data->event),
                      (xEvent *) replyp,
                      &serial,
                      _Xi18nNeedSwap (i18n_core, call_data->connect_id));

    FrameMgrPutToken (fm, serial);

    _Xi18nSendMessage (ims,
                       call_data->connect_id,
                       XIM_FORWARD_EVENT,
                       0,
                       reply,
                       total_size + event_size);

    XFree (reply);
    FrameMgrFree (fm);

    return True;
}

static Status xi18n_commit (XIMS ims, XPointer xp)
{
    Xi18n i18n_core = ims->protocol;
    IMCommitStruct *call_data = (IMCommitStruct *)xp;
    FrameMgr fm;
    extern XimFrameRec commit_chars_fr[];
    extern XimFrameRec commit_both_fr[];
    register int total_size;
    unsigned char *reply = NULL;
    CARD16 str_length;

    call_data->flag |= XimSYNCHRONUS;  /* always sync */

    if (!(call_data->flag & XimLookupKeySym)
        &&
        (call_data->flag & XimLookupChars))
    {
        fm = FrameMgrInit (commit_chars_fr,
                           NULL,
                           _Xi18nNeedSwap (i18n_core, call_data->connect_id));

        /* set length of STRING8 */
        str_length = strlen (call_data->commit_string);
        FrameMgrSetSize (fm, str_length);
        total_size = FrameMgrGetTotalSize (fm);
        reply = (unsigned char *) malloc (total_size);
        if (!reply)
        {
            _Xi18nSendMessage (ims,
                               call_data->connect_id,
                               XIM_ERROR,
                               0,
                               0,
                               0);
            return False;
        }
        /*endif*/
        memset (reply, 0, total_size);
        FrameMgrSetBuffer (fm, reply);

        str_length = FrameMgrGetSize (fm);
        FrameMgrPutToken (fm, call_data->connect_id);
        FrameMgrPutToken (fm, call_data->icid);
        FrameMgrPutToken (fm, call_data->flag);
        FrameMgrPutToken (fm, str_length);
        FrameMgrPutToken (fm, call_data->commit_string);
    }
    else
    {
        fm = FrameMgrInit (commit_both_fr,
                           NULL,
                           _Xi18nNeedSwap (i18n_core, call_data->connect_id));
        /* set length of STRING8 */
        str_length = strlen (call_data->commit_string);
        if (str_length > 0)
            FrameMgrSetSize (fm, str_length);
        /*endif*/
        total_size = FrameMgrGetTotalSize (fm);
        reply = (unsigned char *) malloc (total_size);
        if (!reply)
        {
            _Xi18nSendMessage (ims,
                               call_data->connect_id,
                               XIM_ERROR,
                               0,
                               0,
                               0);
            return False;
        }
        /*endif*/
        FrameMgrSetBuffer (fm, reply);
        FrameMgrPutToken (fm, call_data->connect_id);
        FrameMgrPutToken (fm, call_data->icid);
        FrameMgrPutToken (fm, call_data->flag);
        FrameMgrPutToken (fm, call_data->keysym);
        if (str_length > 0)
        {
            str_length = FrameMgrGetSize (fm);
            FrameMgrPutToken (fm, str_length);
            FrameMgrPutToken (fm, call_data->commit_string);
        }
        /*endif*/
    }
    /*endif*/
    _Xi18nSendMessage (ims,
                       call_data->connect_id,
                       XIM_COMMIT,
                       0,
                       reply,
                       total_size);
    FrameMgrFree (fm);
    XFree (reply);

    return True;
}

static int xi18n_callCallback (XIMS ims, XPointer xp)
{
    IMProtocol *call_data = (IMProtocol *)xp;
    switch (call_data->major_code)
    {
    case XIM_GEOMETRY:
        return _Xi18nGeometryCallback (ims, call_data);

    case XIM_PREEDIT_START:
        return _Xi18nPreeditStartCallback (ims, call_data);

    case XIM_PREEDIT_DRAW:
        return _Xi18nPreeditDrawCallback (ims, call_data);

    case XIM_PREEDIT_CARET:
        return _Xi18nPreeditCaretCallback (ims, call_data);

    case XIM_PREEDIT_DONE:
        return _Xi18nPreeditDoneCallback (ims, call_data);

    case XIM_STATUS_START:
        return _Xi18nStatusStartCallback (ims, call_data);

    case XIM_STATUS_DRAW:
        return _Xi18nStatusDrawCallback (ims, call_data);

    case XIM_STATUS_DONE:
        return _Xi18nStatusDoneCallback (ims, call_data);

    case XIM_STR_CONVERSION:
        return _Xi18nStringConversionCallback (ims, call_data);
    }
    /*endswitch*/
    return False;
}

/* preeditStart and preeditEnd are used only for Dynamic Event Flow. */
static int xi18n_preeditStart (XIMS ims, XPointer xp)
{
    IMProtocol *call_data = (IMProtocol *)xp;
    Xi18n i18n_core = ims->protocol;
    IMPreeditStateStruct *preedit_state =
        (IMPreeditStateStruct *) &call_data->preedit_state;
    long mask;
    int on_key_num = i18n_core->address.on_keys.count_keys;
    int off_key_num = i18n_core->address.off_keys.count_keys;

    if (on_key_num == 0  &&  off_key_num == 0)
        return False;
    /*endif*/
    if (i18n_core->address.imvalue_mask & I18N_FILTERMASK)
        mask = i18n_core->address.filterevent_mask;
    else
        mask = DEFAULT_FILTER_MASK;
    /*endif*/
    _Xi18nSetEventMask (ims,
                        preedit_state->connect_id,
                        preedit_state->connect_id,
                        preedit_state->icid,
                        mask,
                        ~mask);
    return True;
}

static int xi18n_preeditEnd (XIMS ims, XPointer xp)
{
    IMProtocol *call_data = (IMProtocol *)xp;
    Xi18n i18n_core = ims->protocol;
    int on_key_num = i18n_core->address.on_keys.count_keys;
    int off_key_num = i18n_core->address.off_keys.count_keys;
    IMPreeditStateStruct *preedit_state;

    preedit_state = (IMPreeditStateStruct *) &call_data->preedit_state;

    if (on_key_num == 0  &&  off_key_num == 0)
        return False;
    /*endif*/
    
    _Xi18nSetEventMask (ims,
                        preedit_state->connect_id,
                        preedit_state->connect_id,
                        preedit_state->icid,
                        0,
                        0);
    return True;
}

static int xi18n_syncXlib (XIMS ims, XPointer xp)
{
    IMProtocol *call_data = (IMProtocol *)xp;
    Xi18n i18n_core = ims->protocol;
    IMSyncXlibStruct *sync_xlib;

    extern XimFrameRec sync_fr[];
    FrameMgr fm;
    CARD16 connect_id = call_data->any.connect_id;
    int total_size;
    unsigned char *reply;

    sync_xlib = (IMSyncXlibStruct *) &call_data->sync_xlib;
    fm = FrameMgrInit (sync_fr, NULL,
                       _Xi18nNeedSwap (i18n_core, connect_id));
    total_size = FrameMgrGetTotalSize(fm);
    reply = (unsigned char *) malloc (total_size);
    if (!reply) {
        _Xi18nSendMessage (ims, connect_id, XIM_ERROR, 0, 0, 0);
        return False;
    }
    memset (reply, 0, total_size);
    FrameMgrSetBuffer (fm, reply);

    /* input input-method ID */
    FrameMgrPutToken (fm, connect_id);
    /* input input-context ID */
    FrameMgrPutToken (fm, sync_xlib->icid);
    _Xi18nSendMessage (ims, connect_id, XIM_SYNC, 0, reply, total_size);

    FrameMgrFree (fm);
    XFree(reply);
    return True;
}