diff options
author | Peter Breitenlohner <peb@mppmu.mpg.de> | 2010-05-05 13:19:37 +0000 |
---|---|---|
committer | Peter Breitenlohner <peb@mppmu.mpg.de> | 2010-05-05 13:19:37 +0000 |
commit | c6e0c2d3f66468bf0dc4e71f4e96ccfca86b93c5 (patch) | |
tree | 1f6f65e4d4b91da48baff77a20c0f2ffa10aabfc /Build/source/utils/xpdfopen/sendx.c | |
parent | c53b86a4f756fd2a535206176fa9a3f36485ca34 (diff) |
xpdfopen 0.80 (replacing pdfopen 0.5)
git-svn-id: svn://tug.org/texlive/trunk@18111 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/utils/xpdfopen/sendx.c')
-rw-r--r-- | Build/source/utils/xpdfopen/sendx.c | 408 |
1 files changed, 408 insertions, 0 deletions
diff --git a/Build/source/utils/xpdfopen/sendx.c b/Build/source/utils/xpdfopen/sendx.c new file mode 100644 index 00000000000..f97cfb59d5a --- /dev/null +++ b/Build/source/utils/xpdfopen/sendx.c @@ -0,0 +1,408 @@ +/* + * Modified by Jim Diamond (jim.diamond@acadiau.ca) April 24, 2010 + * to reset error_status to 0 at the beginning of open_channel(). + * + * Also replaced 0xfff with KeyPressMask and KeyReleaseMask (as + * appropriate) in sendx_channel(); otherwise (at least in Slackware64 13.0) + * the events also get sent to the terminal running pdfopen; this is a Bad + * Thing. + * + * Also added set_focus() and reset_focus() functions. + * NOTE: they do not work, at least under FVWM2 on Slackware64-13.0. + * They return success, but the focus never changes (or is reverted to the + * window containing the mouse before a call to sendx_token() can do its + * work). + */ + +#include <stdio.h> +#include <string.h> +#include <ctype.h> + +#include <X11/Xlib.h> +#include <X11/Xatom.h> +#include <X11/keysym.h> +#include <X11/cursorfont.h> + +#include "sendx.h" + +static char * display_name = NULL; +static Display * display; +static Window root; +static Window window = None; +static XKeyEvent event; + +static char error_message[256]; +static int error_status = 0; + + +static void +throw_exception3(const char * msg, const char * s, int i) +{ + sprintf(error_message, msg, s, i); + error_status = 1; +} + + +static void +throw_exception3s(const char * msg1, const char * msg2, const char * msg3) +{ + sprintf(error_message, msg1, msg2, msg3); + error_status = 1; +} + + +static void +throw_exception(const char * msg) +{ + strncpy(error_message, msg, 256); + error_status = 1; +} + + + +/* + * Added for window managers like swm and tvtwm that follow solbourne's + * virtual root window concept + */ +static Window +GetRootWindow(Display * disp, int scrn) +{ + Atom __SWM_VROOT = None; + Window root, rootReturn, parentReturn, * children; + unsigned int numChildren; + unsigned i; + + root = RootWindow(disp, scrn); + + /* + * see if there is a virtual root + */ + __SWM_VROOT = XInternAtom(disp, "__SWM_VROOT", False); + XQueryTree(disp, root, &rootReturn, &parentReturn, &children, &numChildren); + + for (i = 0; i < numChildren; i++) + { + Atom actual_type; + int actual_format; + unsigned long nitems, bytesafter; + unsigned char * prop_return = NULL; + + if (XGetWindowProperty(disp, children[i], __SWM_VROOT, 0, 1, + False, XA_WINDOW, &actual_type, &actual_format, + &nitems, &bytesafter, &prop_return) + == Success && prop_return) + { + root = *(Window *)prop_return; + break; + } + } + + if (children) + XFree((char *)children); + + return (root); +} + + + +/* + * [These functions are from the file "dsimple.c" used with xwininfo.] + * + * Written by Mark Lillibridge. Last updated 7/1/87 + * + * Window_With_Name: routine to locate a window with a given name on a + * display. If no window with the given name is found, 0 is returned. + * If more than one window has the given name, the first one found + * will be returned. Only top and its subwindows are looked at. + * Normally, top should be the Root Window. + */ + +static Window +Window_With_Name(Display * dpy, Window top, const char * name) +{ + Window * children, dummy; + unsigned int nchildren; + unsigned i; + Window w = 0; + char * window_name; + + if (XFetchName(dpy, top, &window_name) && !strcmp(window_name, name)) + return (top); + + if (!XQueryTree(dpy, top, &dummy, &dummy, &children, &nchildren)) + return (0); + + for (i = 0; i < nchildren; i++) + { + w = Window_With_Name(dpy, children[i], name); + if (w) + break; + } + + if (children) + XFree((char *)children); + + return (w); +} + + + +static int +open_channel(const char * wname) +{ + /* + * display_name = ":0.0"; + */ + + error_status = 0; + + if ((display = XOpenDisplay(display_name)) == NULL) + { + throw_exception("can't open display"); + return 1; + } + + if ((root = GetRootWindow(display, DefaultScreen(display))) == 0) + { + throw_exception("Cannot get DefaultScreen"); + return 1; + } + + if ((wname[0] == '\0') && (window != None)) + { + } /* take selected window */ + else if (wname[0] != '\0') + { + if ((window = Window_With_Name(display, root, wname)) == None) + { + throw_exception3s("Display %s: can't open window named \"%s\"", + XDisplayName(display_name), wname); + return 1; + } + } + else + { + throw_exception3("bad condition in %s at line %d", __FILE__, __LINE__); + return 1; + } + + event.type = KeyPress; + event.serial = 0; + event.send_event = False; + event.display = display; + event.x = event.y = event.x_root = event.y_root = 0; + event.time = CurrentTime; + event.same_screen = True; + event.subwindow = None; + event.window = window; + event.root = root; + + return 0; +} + + + +static void +close_channel(void) +{ + /* + * XFlush(display); + */ + XCloseDisplay(display); +} + + + +static void +sendx_channel(KeySym ks, int km) +{ + /* + * km: 0=regular, 1=shift, 2=lock, 4=control + */ + if (ks < 256) + { + event.state = isupper((char)ks); + switch (ks) + { + case 0x08: + ks = XK_BackSpace; + break; + case 0x09: + ks = XK_Tab; + break; + case 0x0A: + ks = XK_Linefeed; + break; + case 0x0B: + ks = XK_Clear; + break; + case 0x0D: + ks = XK_Return; + break; + case 0x13: + ks = XK_Pause; + break; + case 0x14: + ks = XK_Scroll_Lock; + break; + case 0x1B: + ks = XK_Escape; + break; + } + } + else + event.state = 0; + + event.type = KeyPress; + event.state = km; // Mod1Mask + event.keycode = XKeysymToKeycode(display, ks); + + if (XSendEvent(display, window, True, KeyPressMask, (XEvent *)&event) == 0) + throw_exception("Error in XSendEvent"); + + event.type = KeyRelease; + if (XSendEvent(display, window, True, KeyReleaseMask, (XEvent *)&event) + == 0) + throw_exception("Error in XSendEvent"); + + return; +} + + + +int +sendx_string(const char * string, const char * window) +{ + const char * p; + + if (open_channel(window)) + return error_status; + + p = string; + while (*p) + sendx_channel(*p++, 0); + close_channel(); + + return error_status; +} + + + +int +sendx_token(const char * string, const char * window) +{ + if (open_channel(window)) + return error_status; + + sendx_channel(XStringToKeysym(string), 0); + close_channel(); + + return error_status; +} + + + +int +sendx_alt_token(const char * string, const char * window) +{ + if (open_channel(window)) + return error_status; + + sendx_channel(XStringToKeysym(string), Mod1Mask); + close_channel(); + + return error_status; +} + + + +int +sendx_controlalt_token(const char * string, const char * window) +{ + if (open_channel(window)) + return error_status; + + sendx_channel(XStringToKeysym(string), Mod1Mask | ControlMask); + close_channel(); + + return error_status; +} + + + +int +sendx_control_token(const char * string, const char * window) +{ + if (open_channel(window)) + return error_status; + + sendx_channel(XStringToKeysym(string), ControlMask); + close_channel(); + + return error_status; +} + + + + +static Window previous_window; +static int previous_window_set = 0; +static int revert_to; + +/* + * Attempt to give focus to the given window. + * Return 0 on success, non-0 on failure. + * Record the previous window for reset_focus() on success. + */ + +int +set_focus(const char * wname) +{ + if ((display = XOpenDisplay(display_name)) == NULL) + { + throw_exception("can't open display"); + return 1; + } + + if ((root = GetRootWindow(display, DefaultScreen(display))) == 0) + { + throw_exception("Cannot get DefaultScreen"); + return 1; + } + + (void)XGetInputFocus(display, &previous_window, &revert_to); + if (XSetInputFocus(display, Window_With_Name(display, root, wname), + previous_window, CurrentTime)) + { + previous_window_set = 1; + return 0; + } + + throw_exception3s("Display %s: can't focus window named \"%s\"", + XDisplayName(display_name), wname); + return 1; +} + + + +int +reset_focus(void) +{ + if (previous_window_set) + { + XSetInputFocus(display, previous_window, revert_to, CurrentTime); + previous_window_set = 0; + return 0; + } + + throw_exception("reset_focus() called when previous window not saved"); + return 1; +} + + + +/* + * void PrintKeySyms () { int i; for (i = 32; i < 127; i++) { printf ("%s[%c] + * ", XKeysymToString (i), i); } for (i = 128 + 32; i < 128 + 127; i++) { + * printf ("%s[%c] ", XKeysymToString (i), i); } printf ("\n"); } + */ |