96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
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#include <X11/Xlib.h>
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#include "common.h"
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#include "x.h"
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/**
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* Get a specific attribute of a window.
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*
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* Returns a blank structure if the returned type and format does not
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* match the requested type and format.
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*
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* @param ps current session
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* @param w window
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* @param atom atom of attribute to fetch
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* @param length length to read
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* @param rtype atom of the requested type
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* @param rformat requested format
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* @return a <code>winprop_t</code> structure containing the attribute
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* and number of items. A blank one on failure.
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*/
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winprop_t
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wid_get_prop_adv(const session_t *ps, Window w, Atom atom, long offset,
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long length, Atom rtype, int rformat) {
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Atom type = None;
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int format = 0;
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unsigned long nitems = 0, after = 0;
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unsigned char *data = NULL;
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if (Success == XGetWindowProperty(ps->dpy, w, atom, offset, length,
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False, rtype, &type, &format, &nitems, &after, &data)
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&& nitems && (AnyPropertyType == type || type == rtype)
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&& (!rformat || format == rformat)
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&& (8 == format || 16 == format || 32 == format)) {
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return (winprop_t) {
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.data.p8 = data,
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.nitems = nitems,
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.type = type,
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.format = format,
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};
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}
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cxfree(data);
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return (winprop_t) {
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.data.p8 = NULL,
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.nitems = 0,
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.type = AnyPropertyType,
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.format = 0
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};
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}
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/**
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* Get the value of a type-<code>Window</code> property of a window.
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*
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* @return the value if successful, 0 otherwise
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*/
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Window
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wid_get_prop_window(session_t *ps, Window wid, Atom aprop) {
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// Get the attribute
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Window p = None;
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winprop_t prop = wid_get_prop(ps, wid, aprop, 1L, XA_WINDOW, 32);
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// Return it
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if (prop.nitems) {
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p = *prop.data.p32;
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}
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free_winprop(&prop);
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return p;
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}
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/**
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* Get the value of a text property of a window.
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*/
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bool wid_get_text_prop(session_t *ps, Window wid, Atom prop,
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char ***pstrlst, int *pnstr) {
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XTextProperty text_prop = { NULL, None, 0, 0 };
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if (!(XGetTextProperty(ps->dpy, wid, &text_prop, prop) && text_prop.value))
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return false;
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if (Success !=
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XmbTextPropertyToTextList(ps->dpy, &text_prop, pstrlst, pnstr)
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|| !*pnstr) {
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*pnstr = 0;
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if (*pstrlst)
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XFreeStringList(*pstrlst);
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cxfree(text_prop.value);
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return false;
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}
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cxfree(text_prop.value);
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return true;
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}
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