commit b8d567921ea57e1d1089b8e0c14aff77bce1d93e
parent 77456c4698f33511b0652c9dfd6f2904b4797584
Author: Tim Keller <tjkeller.xyz>
Date: Sat, 11 Jan 2025 15:03:31 -0600
add drag and drop patch for st
Diffstat:
2 files changed, 367 insertions(+), 0 deletions(-)
diff --git a/st.suckless.org/patches/drag-n-drop/index.md b/st.suckless.org/patches/drag-n-drop/index.md
@@ -0,0 +1,24 @@
+XDND drag-n-drop
+================
+This patch adds
+[XDND Drag-and-Drop](https://www.freedesktop.org/wiki/Specifications/XDND/)
+support for st.
+
+Description
+-----------
+Dragging a file onto the st window from another XDND enabled window, such as a
+graphical file manager, will insert the file path at your cursor. This behavior
+is common in other modern terminal emulators. Multiple files are supported at
+once.
+
+Special characters in the file path (e.g. `space`, `&`, `'`, etc.) are also
+escaped using the `\` character. The full list of escaped characters are stored
+as a string `xdndescchar` in `config.h`.
+
+Download
+--------
+* [st-drag-n-drop-0.9.2.diff](st-drag-n-drop-0.9.2.diff)
+
+Authors
+-------
+* Tim Keller - <tjk@tjkeller.xyz>
diff --git a/st.suckless.org/patches/drag-n-drop/st-drag-n-drop-0.9.2.diff b/st.suckless.org/patches/drag-n-drop/st-drag-n-drop-0.9.2.diff
@@ -0,0 +1,343 @@
+diff --git a/config.def.h b/config.def.h
+index 2cd740a..3045d0a 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -93,6 +93,13 @@ char *termname = "st-256color";
+ */
+ unsigned int tabspaces = 8;
+
++/*
++ * drag and drop escape characters
++ *
++ * this will add a '\' before any characters specified in the string.
++ */
++char *xdndescchar = " !\"#$&'()*;<>?[\\]^`{|}~";
++
+ /* Terminal colors (16 first used in escape sequence) */
+ static const char *colorname[] = {
+ /* 8 normal colors */
+diff --git a/st.h b/st.h
+index fd3b0d8..62c7405 100644
+--- a/st.h
++++ b/st.h
+@@ -20,6 +20,10 @@
+ #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
+ #define IS_TRUECOL(x) (1 << 24 & (x))
+
++#define HEX_TO_INT(c) ((c) >= '0' && (c) <= '9' ? (c) - '0' : \
++ (c) >= 'a' && (c) <= 'f' ? (c) - 'a' + 10 : \
++ (c) >= 'A' && (c) <= 'F' ? (c) - 'A' + 10 : -1)
++
+ enum glyph_attribute {
+ ATTR_NULL = 0,
+ ATTR_BOLD = 1 << 0,
+diff --git a/x.c b/x.c
+index d73152b..a152ea8 100644
+--- a/x.c
++++ b/x.c
+@@ -94,6 +94,12 @@ typedef struct {
+ Drawable buf;
+ GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
+ Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid;
++ Atom XdndTypeList, XdndSelection, XdndEnter, XdndPosition, XdndStatus,
++ XdndLeave, XdndDrop, XdndFinished, XdndActionCopy, XdndActionMove,
++ XdndActionLink, XdndActionAsk, XdndActionPrivate, XtextUriList,
++ XtextPlain, XdndAware;
++ int64_t XdndSourceWin, XdndSourceVersion;
++ int32_t XdndSourceFormat;
+ struct {
+ XIM xim;
+ XIC xic;
+@@ -169,6 +175,9 @@ static void visibility(XEvent *);
+ static void unmap(XEvent *);
+ static void kpress(XEvent *);
+ static void cmessage(XEvent *);
++static void xdndenter(XEvent *);
++static void xdndpos(XEvent *);
++static void xdnddrop(XEvent *);
+ static void resize(XEvent *);
+ static void focus(XEvent *);
+ static uint buttonmask(uint);
+@@ -178,6 +187,8 @@ static void bpress(XEvent *);
+ static void bmotion(XEvent *);
+ static void propnotify(XEvent *);
+ static void selnotify(XEvent *);
++static void xdndsel(XEvent *);
++static void xdndpastedata(char *);
+ static void selclear_(XEvent *);
+ static void selrequest(XEvent *);
+ static void setsel(char *, Time);
+@@ -220,6 +231,7 @@ static DC dc;
+ static XWindow xw;
+ static XSelection xsel;
+ static TermWindow win;
++const char XdndVersion = 5;
+
+ /* Font Ring Cache */
+ enum {
+@@ -536,6 +548,11 @@ selnotify(XEvent *e)
+ if (property == None)
+ return;
+
++ if (property == xw.XdndSelection) {
++ xdndsel(e);
++ return;
++ }
++
+ do {
+ if (XGetWindowProperty(xw.dpy, xw.win, property, ofs,
+ BUFSIZ/4, False, AnyPropertyType,
+@@ -604,6 +621,93 @@ selnotify(XEvent *e)
+ XDeleteProperty(xw.dpy, xw.win, (int)property);
+ }
+
++void
++xdndsel(XEvent *e)
++{
++ char* data;
++ unsigned long result;
++
++ Atom actualType;
++ int32_t actualFormat;
++ unsigned long bytesAfter;
++ XEvent reply = { ClientMessage };
++
++ reply.xclient.window = xw.XdndSourceWin;
++ reply.xclient.format = 32;
++ reply.xclient.data.l[0] = (long) xw.win;
++ reply.xclient.data.l[2] = 0;
++ reply.xclient.data.l[3] = 0;
++
++ XGetWindowProperty((Display*) xw.dpy, e->xselection.requestor,
++ e->xselection.property, 0, LONG_MAX, False,
++ e->xselection.target, &actualType, &actualFormat, &result,
++ &bytesAfter, (unsigned char**) &data);
++
++ if (result == 0)
++ return;
++
++ if (data) {
++ xdndpastedata(data);
++ XFree(data);
++ }
++
++ if (xw.XdndSourceVersion >= 2) {
++ reply.xclient.message_type = xw.XdndFinished;
++ reply.xclient.data.l[1] = result;
++ reply.xclient.data.l[2] = xw.XdndActionCopy;
++
++ XSendEvent((Display*) xw.dpy, xw.XdndSourceWin, False, NoEventMask,
++ &reply);
++ XFlush((Display*) xw.dpy);
++ }
++}
++
++int
++xdndurldecode(char *src, char *dest)
++{
++ char c;
++ int i = 0;
++
++ while (*src) {
++ if (*src == '%' && HEX_TO_INT(src[1]) != -1 && HEX_TO_INT(src[2]) != -1) {
++ /* handle %xx escape sequences in url e.g. %20 == ' ' */
++ c = (char)((HEX_TO_INT(src[1]) << 4) | HEX_TO_INT(src[2]));
++ src += 3;
++ } else {
++ c = *src++;
++ }
++ if (strchr(xdndescchar, c) != NULL) {
++ *dest++ = '\\';
++ i++;
++ }
++ *dest++ = c;
++ i++;
++ }
++ *dest++ = ' ';
++ *dest = '\0';
++ return i + 1;
++}
++
++void
++xdndpastedata(char *data)
++{
++ char *pastedata, *t;
++ int i = 0;
++
++ pastedata = (char *)malloc(strlen(data) * 2 + 1);
++ *pastedata = '\0';
++
++ t = strtok(data, "\n\r");
++ while(t != NULL) {
++ t += 7; /* remove 'file://' prefix */
++ i += xdndurldecode(t, pastedata + i);
++ t = strtok(NULL, "\n\r");
++ }
++
++ xsetsel(pastedata);
++ selpaste(0);
++}
++
+ void
+ xclipcopy(void)
+ {
+@@ -1227,6 +1331,26 @@ xinit(int cols, int rows)
+ XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
+ PropModeReplace, (uchar *)&thispid, 1);
+
++ /* Xdnd setup */
++ xw.XdndTypeList = XInternAtom(xw.dpy, "XdndTypeList", 0);
++ xw.XdndSelection = XInternAtom(xw.dpy, "XdndSelection", 0);
++ xw.XdndEnter = XInternAtom(xw.dpy, "XdndEnter", 0);
++ xw.XdndPosition = XInternAtom(xw.dpy, "XdndPosition", 0);
++ xw.XdndStatus = XInternAtom(xw.dpy, "XdndStatus", 0);
++ xw.XdndLeave = XInternAtom(xw.dpy, "XdndLeave", 0);
++ xw.XdndDrop = XInternAtom(xw.dpy, "XdndDrop", 0);
++ xw.XdndFinished = XInternAtom(xw.dpy, "XdndFinished", 0);
++ xw.XdndActionCopy = XInternAtom(xw.dpy, "XdndActionCopy", 0);
++ xw.XdndActionMove = XInternAtom(xw.dpy, "XdndActionMove", 0);
++ xw.XdndActionLink = XInternAtom(xw.dpy, "XdndActionLink", 0);
++ xw.XdndActionAsk = XInternAtom(xw.dpy, "XdndActionAsk", 0);
++ xw.XdndActionPrivate = XInternAtom(xw.dpy, "XdndActionPrivate", 0);
++ xw.XtextUriList = XInternAtom((Display*) xw.dpy, "text/uri-list", 0);
++ xw.XtextPlain = XInternAtom((Display*) xw.dpy, "text/plain", 0);
++ xw.XdndAware = XInternAtom(xw.dpy, "XdndAware", 0);
++ XChangeProperty(xw.dpy, xw.win, xw.XdndAware, 4, 32, PropModeReplace,
++ &XdndVersion, 1);
++
+ win.mode = MODE_NUMLOCK;
+ resettitle();
+ xhints();
+@@ -1908,6 +2032,132 @@ cmessage(XEvent *e)
+ } else if (e->xclient.data.l[0] == xw.wmdeletewin) {
+ ttyhangup();
+ exit(0);
++ } else if (e->xclient.message_type == xw.XdndEnter) {
++ xw.XdndSourceWin = e->xclient.data.l[0];
++ xw.XdndSourceVersion = e->xclient.data.l[1] >> 24;
++ xw.XdndSourceFormat = None;
++ if (xw.XdndSourceVersion > 5)
++ return;
++ xdndenter(e);
++ } else if (e->xclient.message_type == xw.XdndPosition
++ && xw.XdndSourceVersion <= 5) {
++ xdndpos(e);
++ } else if (e->xclient.message_type == xw.XdndDrop
++ && xw.XdndSourceVersion <= 5) {
++ xdnddrop(e);
++ }
++}
++
++void
++xdndenter(XEvent *e)
++{
++ unsigned long count;
++ Atom* formats;
++ Atom real_formats[6];
++ Bool list;
++ Atom actualType;
++ int32_t actualFormat;
++ unsigned long bytesAfter;
++ unsigned long i;
++
++ list = e->xclient.data.l[1] & 1;
++
++ if (list) {
++ XGetWindowProperty((Display*) xw.dpy,
++ xw.XdndSourceWin,
++ xw.XdndTypeList,
++ 0,
++ LONG_MAX,
++ False,
++ 4,
++ &actualType,
++ &actualFormat,
++ &count,
++ &bytesAfter,
++ (unsigned char**) &formats);
++ } else {
++ count = 0;
++
++ if (e->xclient.data.l[2] != None)
++ real_formats[count++] = e->xclient.data.l[2];
++ if (e->xclient.data.l[3] != None)
++ real_formats[count++] = e->xclient.data.l[3];
++ if (e->xclient.data.l[4] != None)
++ real_formats[count++] = e->xclient.data.l[4];
++
++ formats = real_formats;
++ }
++
++ for (i = 0; i < count; i++) {
++ if (formats[i] == xw.XtextUriList || formats[i] == xw.XtextPlain) {
++ xw.XdndSourceFormat = formats[i];
++ break;
++ }
++ }
++
++ if (list)
++ XFree(formats);
++}
++
++void
++xdndpos(XEvent *e)
++{
++ const int32_t xabs = (e->xclient.data.l[2] >> 16) & 0xffff;
++ const int32_t yabs = (e->xclient.data.l[2]) & 0xffff;
++ Window dummy;
++ int32_t xpos, ypos;
++ XEvent reply = { ClientMessage };
++
++ reply.xclient.window = xw.XdndSourceWin;
++ reply.xclient.format = 32;
++ reply.xclient.data.l[0] = (long) xw.win;
++ reply.xclient.data.l[2] = 0;
++ reply.xclient.data.l[3] = 0;
++
++ XTranslateCoordinates((Display*) xw.dpy,
++ XDefaultRootWindow((Display*) xw.dpy),
++ (Window) xw.win,
++ xabs, yabs,
++ &xpos, &ypos,
++ &dummy);
++
++ reply.xclient.message_type = xw.XdndStatus;
++
++ if (xw.XdndSourceFormat) {
++ reply.xclient.data.l[1] = 1;
++ if (xw.XdndSourceVersion >= 2)
++ reply.xclient.data.l[4] = xw.XdndActionCopy;
++ }
++
++ XSendEvent((Display*) xw.dpy, xw.XdndSourceWin, False, NoEventMask,
++ &reply);
++ XFlush((Display*) xw.dpy);
++}
++
++void
++xdnddrop(XEvent *e)
++{
++ Time time = CurrentTime;
++ XEvent reply = { ClientMessage };
++
++ reply.xclient.window = xw.XdndSourceWin;
++ reply.xclient.format = 32;
++ reply.xclient.data.l[0] = (long) xw.win;
++ reply.xclient.data.l[2] = 0;
++ reply.xclient.data.l[3] = 0;
++
++ if (xw.XdndSourceFormat) {
++ if (xw.XdndSourceVersion >= 1)
++ time = e->xclient.data.l[2];
++
++ XConvertSelection((Display*) xw.dpy, xw.XdndSelection,
++ xw.XdndSourceFormat, xw.XdndSelection, (Window) xw.win, time);
++ } else if (xw.XdndSourceVersion >= 2) {
++ reply.xclient.message_type = xw.XdndFinished;
++
++ XSendEvent((Display*) xw.dpy, xw.XdndSourceWin,
++ False, NoEventMask, &reply);
++ XFlush((Display*) xw.dpy);
+ }
+ }
+
