i18nmethod.c

手写识别Chinput源码

                        return IMServerName;
                    /*endif*/
                    strcpy (p->value, address->im_name);
                }
                else
                {
                    return IMServerName;
                }
                /*endif*/
            }
            else if (strcmp (p->name, IMServerWindow) == 0)
            {
                if (address->imvalue_mask & I18N_IMSERVER_WIN)
                    *((Window *) (p->value)) = address->im_window;
                else
                    return IMServerWindow;
                /*endif*/
            }
            else if (strcmp (p->name, IMInputStyles) == 0)
            {
                if (GetInputStyles (i18n_core,
                                    (XIMStyles **) p->value) == False)
                {
                    return IMInputStyles;
                }
                /*endif*/
            }
            else if (strcmp (p->name, IMProtocolHandler) == 0)
            {
                if (address->imvalue_mask & I18N_IM_HANDLER)
                    *((IMProtoHandler *) (p->value)) = address->improto;
                else
                    return IMProtocolHandler;
                /*endif*/
            }
            else if (strcmp (p->name, IMOnKeysList) == 0)
            {
                if (address->imvalue_mask & I18N_ON_KEYS)
                {
                    if (GetOnOffKeys (i18n_core,
                                      I18N_ON_KEYS,
                                      (XIMTriggerKeys **) p->value) == False)
                    {
                        return IMOnKeysList;
                    }
                    /*endif*/
                }
                else
                {
                    return IMOnKeysList;
                }
                /*endif*/
            }
            else if (strcmp (p->name, IMOffKeysList) == 0)
            {
                if (address->imvalue_mask & I18N_OFF_KEYS)
                {
                    if (GetOnOffKeys (i18n_core,
                                      I18N_OFF_KEYS,
                                      (XIMTriggerKeys **) p->value) == False)
                    {
                        return IMOffKeysList;
                    }
                    /*endif*/
                }
                else
                {
                    return IMOffKeysList;
                }
                /*endif*/
            }
            else if (strcmp (p->name, IMEncodingList) == 0)
            {
                if (address->imvalue_mask & I18N_ENCODINGS)
                {
                    if (GetEncodings (i18n_core,
                                      (XIMEncodings **) p->value) == False)
                    {
                        return IMEncodingList;
                    }
                    /*endif*/
                }
                else
                {
                    return IMEncodingList;
                }
                /*endif*/
            }
            else if (strcmp (p->name, IMFilterEventMask) == 0)
            {
                if (address->imvalue_mask & I18N_FILTERMASK)
                    *((long *) (p->value)) = address->filterevent_mask;
                else
                    return IMFilterEventMask;
                /*endif*/
            }
            /*endif*/
        }
        /*endfor*/
    }
    /*endif*/
    return NULL;
}

static int CheckIMName (Xi18n i18n_core)
{
    char *address = i18n_core->address.im_addr;
    int i;

    for (i = 0;  _TransR[i].transportname;  i++)
    {
        while (*address == ' '  ||  *address == '\t')
            address++;
        /*endwhile*/
        if (strncmp (address,
                     _TransR[i].transportname,
                     _TransR[i].namelen) == 0
            &&
            address[_TransR[i].namelen] == '/')
        {
            if (_TransR[i].checkAddr (i18n_core,
                                      &_TransR[i],
                                      address + _TransR[i].namelen + 1) == True)
            {
                return True;
            }
            /*endif*/
            return False;
        }
        /*endif*/
    }
    /*endfor*/
    return False;
}

static int SetXi18nSelectionOwner(Xi18n i18n_core)
{
    Display *dpy = i18n_core->address.dpy;
    Window ims_win = i18n_core->address.im_window;
    Window root = RootWindow (dpy, DefaultScreen (dpy));
    Atom realtype;
    int realformat;
    unsigned long bytesafter;
    long *data=NULL;
    unsigned long length;
    Atom atom;
    int i;
    int found;
    int forse = False;
    char buf[256];

    (void)sprintf(buf, "@server=%s", i18n_core->address.im_name);
    if ((atom = XInternAtom(dpy, buf, False)) == 0)
        return False;
    i18n_core->address.selection = atom;

    if (XIM_Servers == None)
        XIM_Servers = XInternAtom (dpy, XIM_SERVERS, False);
    /*endif*/
    XGetWindowProperty (dpy,
                        root,
                        XIM_Servers,
                        0L,
                        1000000L,
                        False,
                        XA_ATOM,
                        &realtype,
                        &realformat,
                        &length,
                        &bytesafter,
                        (unsigned char **) (&data));
    if (realtype != None && (realtype != XA_ATOM || realformat != 32)) {
        if (data != NULL)
            XFree ((char *) data);
        return False;
    }

    found = False;
    for (i = 0; i < length; i++) {
        if (data[i] == atom) {
            Window owner;
            found = True;
            if ((owner = XGetSelectionOwner (dpy, atom)) != ims_win) {
                if (owner == None  ||  forse == True)
                    XSetSelectionOwner (dpy, atom, ims_win, CurrentTime);
                else
                    return False;
            }
            break;
        }
    }
    if (found == False) {
        XSetSelectionOwner (dpy, atom, ims_win, CurrentTime);
        XChangeProperty (dpy,
                         root,
                         XIM_Servers,
                         XA_ATOM,
                         32,
                         PropModePrepend,
                         (unsigned char *) &atom,
                         1);
    }
    else {
	/* 
	 * We always need to generate the PropertyNotify to the Root Window 
	 */
        XChangeProperty (dpy,
                         root,
                         XIM_Servers,
                         XA_ATOM,
                         32,
                         PropModePrepend,
                         (unsigned char *) data,
                         0);
    }
    if (data != NULL)
        XFree ((char *) data);
    
    /* Intern "LOCALES" and "TRANSOPORT" Target Atoms */
    i18n_core->address.Localename = XInternAtom (dpy, LOCALES, False);
    i18n_core->address.Transportname = XInternAtom (dpy, TRANSPORT, False);
    return (XGetSelectionOwner (dpy, atom) == ims_win);
}

/* XIM protocol methods */
static void *xi18n_setup (Display *dpy, XIMArg *args)
{
    Xi18n i18n_core;
    CARD16 endian = 1;

    if ((i18n_core = (Xi18n) malloc (sizeof (Xi18nCore))) == (Xi18n) NULL)
        return NULL;
    /*endif*/
    
    memset (i18n_core, 0, sizeof (Xi18nCore));

    i18n_core->address.dpy = dpy;

    if (ParseArgs (i18n_core, I18N_OPEN, args) != NULL)
    {
        XFree (i18n_core);
        return NULL;
    }
    /*endif*/
    if (*(char *) &endian)
        i18n_core->address.im_byteOrder = 'l';
    else
        i18n_core->address.im_byteOrder = 'B';
    /*endif*/
    
    /* install IMAttr and ICAttr list in i18n_core */
    _Xi18nInitAttrList (i18n_core);

    /* install IMExtension list in i18n_core */
    _Xi18nInitExtension (i18n_core);

    return i18n_core;
}

static void ReturnSelectionNotify (Xi18n i18n_core, XSelectionRequestEvent *ev)
{
    XEvent event;
    Display *dpy = i18n_core->address.dpy;
    char buf[256];

    event.type = SelectionNotify;
    event.xselection.requestor = ev->requestor;
    event.xselection.selection = ev->selection;
    event.xselection.target = ev->target;
    event.xselection.time = ev->time;
    event.xselection.property = ev->property;
    if (ev->target == i18n_core->address.Localename)
    {
        sprintf (buf, "@locale=%s", i18n_core->address.im_locale);
    }
    else if (ev->target == i18n_core->address.Transportname)
    {
        sprintf (buf, "@transport=%s", i18n_core->address.im_addr);
    }
    /*endif*/
    XChangeProperty (dpy,
                     event.xselection.requestor,
                     ev->target,
                     ev->target,
                     8,
                     PropModeReplace,
                     (unsigned char *) buf,
                     strlen (buf));
    XSendEvent (dpy, event.xselection.requestor, False, NoEventMask, &event);
    XFlush (i18n_core->address.dpy);
}

static Bool WaitXSelectionRequest (Display *dpy,
                                   Window win,
                                   XEvent *ev,
                                   XPointer client_data)
{
    XIMS ims = (XIMS) client_data;
    Xi18n i18n_core = ims->protocol;

    if (((XSelectionRequestEvent *) ev)->selection
        == i18n_core->address.selection)
    {
        ReturnSelectionNotify (i18n_core, (XSelectionRequestEvent *) ev);
        return True;
    }
    /*endif*/
    return False;
}

static Status xi18n_openIM(XIMS ims)
{
    Xi18n i18n_core = ims->protocol;
    Display *dpy = i18n_core->address.dpy;

    if (!CheckIMName (i18n_core)
        ||
        !SetXi18nSelectionOwner (i18n_core)
        ||
        !i18n_core->methods.begin (ims))
    {
        XFree (i18n_core->address.im_name);
        XFree (i18n_core->address.im_locale);
        XFree (i18n_core->address.im_addr);
        XFree (i18n_core);
        return False;
    }
    /*endif*/

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

static Status xi18n_closeIM(XIMS ims)
{
    Xi18n i18n_core = ims->protocol;
    Window ims_win = i18n_core->address.im_window;
    Display *dpy = i18n_core->address.dpy;
    Atom atom = i18n_core->address.selection;
    Window root = RootWindow (dpy, DefaultScreen (dpy));
    Atom realtype;
    int realformat;
    unsigned long length;
    unsigned long bytesafter;
    long *data, *new_data;
    int i, j;

    if (!i18n_core->methods.end (ims))