commit f20424f9b9d751e7c4d87eb1e92b0302871b7770
parent 849f1492b7f416ebbdde26b10b1e77e3194fb679
Author: Jishnu Sen <jishnu1@gmail.com>
Date: Sun, 7 Apr 2024 22:04:59 -0700
Add patch for control clicking URLs
Diffstat:
2 files changed, 241 insertions(+), 0 deletions(-)
diff --git a/st.suckless.org/patches/clickurl/index.md b/st.suckless.org/patches/clickurl/index.md
@@ -0,0 +1,21 @@
+clickurl
+=======
+
+Description
+-----------
+Highlight URLs on screen by holding left control
+Open URL with left control + mouse button 1
+
+Notes
+-----
+* URLs spanning multiple lines are not handled
+* Heavy inspiration from copyurl patch
+
+Download
+--------
+* [st-clickurl-0.8.5.diff](st-clickurl-0.8.5.diff)
+
+
+Authors
+-------
+* Jishnu Sen - <jishnu1@gmail.com>
diff --git a/st.suckless.org/patches/clickurl/st-clickurl-0.8.5.diff b/st.suckless.org/patches/clickurl/st-clickurl-0.8.5.diff
@@ -0,0 +1,220 @@
+From c47ac6d407ccf5f36f59ff9281b33f96efbd6de9 Mon Sep 17 00:00:00 2001
+From: Jishnu Sen <jishnu1@gmail.com>
+Date: Sun, 7 Apr 2024 21:45:32 -0700
+Subject: [PATCH] Highlight URLs with control and follow with click
+
+---
+ config.def.h | 11 +++++++
+ st.c | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++++
+ st.h | 9 ++++++
+ x.c | 24 +++++++++++++-
+ 4 files changed, 131 insertions(+), 1 deletion(-)
+
+diff --git a/config.def.h b/config.def.h
+index 91ab8ca..4961830 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -472,3 +472,14 @@ static char ascii_printable[] =
+ " !\"#$%&'()*+,-./0123456789:;<=>?"
+ "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
+ "`abcdefghijklmnopqrstuvwxyz{|}~";
++
++/*
++ * Open urls starting with urlprefixes, contatining urlchars
++ * by passing as ARG1 to urlhandler.
++ */
++char* urlhandler = "xdg-open";
++char urlchars[] =
++ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
++ "abcdefghijklmnopqrstuvwxyz"
++ "0123456789-._~:/?#@!$&'*+,;=%";
++char* urlprefixes[] = {"http://", "https://", NULL};
+diff --git a/st.c b/st.c
+index 51049ba..244a91a 100644
+--- a/st.c
++++ b/st.c
+@@ -643,6 +643,94 @@ getsel(void)
+ return str;
+ }
+
++char *
++strstrany(char* s, char** strs) {
++ char *match;
++ for (int i = 0; strs[i]; i++) {
++ if ((match = strstr(s, strs[i]))) {
++ return match;
++ }
++ }
++ return NULL;
++}
++
++void
++highlighturls(void)
++{
++ char *match;
++ char *linestr = calloc(sizeof(char), term.col+1); /* assume ascii */
++ for (int i = term.top; i < term.bot; i++) {
++ int url_start = -1;
++ for (int j = 0; j < term.col; j++) {
++ if (term.line[i][j].u < 127) {
++ linestr[j] = term.line[i][j].u;
++ }
++ linestr[term.col] = '\0';
++ }
++ while ((match = strstrany(linestr + url_start + 1, urlprefixes))) {
++ url_start = match - linestr;
++ for (int c = url_start; c < term.col && strchr(urlchars, linestr[c]); c++) {
++ term.line[i][c].mode |= ATTR_URL;
++ tsetdirt(i, c);
++ }
++ }
++ }
++ free(linestr);
++}
++
++void
++unhighlighturls(void)
++{
++ for (int i = term.top; i < term.bot; i++) {
++ for (int j = 0; j < term.col; j++) {
++ Glyph* g = &term.line[i][j];
++ if (g->mode & ATTR_URL) {
++ g->mode &= ~ATTR_URL;
++ tsetdirt(i, j);
++ }
++ }
++ }
++ return;
++}
++
++void
++followurl(int x, int y) {
++ char *linestr = calloc(sizeof(char), term.col+1); /* assume ascii */
++ char *match;
++ for (int i = 0; i < term.col; i++) {
++ if (term.line[x][i].u < 127) {
++ linestr[i] = term.line[x][i].u;
++ }
++ linestr[term.col] = '\0';
++ }
++ int url_start = -1;
++ while ((match = strstrany(linestr + url_start + 1, urlprefixes))) {
++ url_start = match - linestr;
++ int url_end = url_start;
++ for (int c = url_start; c < term.col && strchr(urlchars, linestr[c]); c++) {
++ url_end++;
++ }
++ if (url_start <= y && y < url_end) {
++ linestr[url_end] = '\0';
++ break;
++ }
++ }
++ if (url_start == -1) {
++ return;
++ }
++
++ pid_t chpid;
++ if ((chpid = fork()) == 0) {
++ if (fork() == 0)
++ execlp(urlhandler, urlhandler, linestr + url_start, NULL);
++ exit(1);
++ }
++ if (chpid > 0)
++ waitpid(chpid, NULL, 0);
++ free(linestr);
++ unhighlighturls();
++}
++
+ void
+ selclear(void)
+ {
+diff --git a/st.h b/st.h
+index 519b9bd..354e7f9 100644
+--- a/st.h
++++ b/st.h
+@@ -34,6 +34,7 @@ enum glyph_attribute {
+ ATTR_WIDE = 1 << 9,
+ ATTR_WDUMMY = 1 << 10,
+ ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
++ ATTR_URL = 1 << 14,
+ };
+
+ enum selection_mode {
+@@ -105,6 +106,10 @@ void selextend(int, int, int, int);
+ int selected(int, int);
+ char *getsel(void);
+
++void highlighturls(void);
++void unhighlighturls(void);
++void followurl(int, int);
++
+ size_t utf8encode(Rune, char *);
+
+ void *xmalloc(size_t);
+@@ -126,3 +131,7 @@ extern unsigned int tabspaces;
+ extern unsigned int defaultfg;
+ extern unsigned int defaultbg;
+ extern unsigned int defaultcs;
++extern char *urlhandler;
++extern char urlchars[];
++extern char *urlprefixes[];
++extern int nurlprefixes;
+diff --git a/x.c b/x.c
+index 8a16faa..13f68e4 100644
+--- a/x.c
++++ b/x.c
+@@ -191,6 +191,7 @@ static void usage(void);
+
+ static void (*handler[LASTEvent])(XEvent *) = {
+ [KeyPress] = kpress,
++ [KeyRelease] = kpress,
+ [ClientMessage] = cmessage,
+ [ConfigureNotify] = resize,
+ [VisibilityNotify] = visibility,
+@@ -445,6 +446,15 @@ mouseaction(XEvent *e, uint release)
+ /* ignore Button<N>mask for Button<N> - it's set on release */
+ uint state = e->xbutton.state & ~buttonmask(e->xbutton.button);
+
++ if (release == 0 &&
++ e->xbutton.button == Button1 &&
++ (match(ControlMask, state) ||
++ match(ControlMask, state & ~forcemousemod))) {
++ followurl(evrow(e), evcol(e));
++ return 1;
++ }
++
++
+ for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
+ if (ms->release == release &&
+ ms->button == e->xbutton.button &&
+@@ -1476,7 +1486,7 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
+ XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
+
+ /* Render underline and strikethrough. */
+- if (base.mode & ATTR_UNDERLINE) {
++ if (base.mode & ATTR_UNDERLINE || base.mode & ATTR_URL) {
+ XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
+ width, 1);
+ }
+@@ -1831,6 +1841,18 @@ kpress(XEvent *ev)
+ len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
+ else
+ len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
++
++ /* 0. highlight URLs when control held */
++ if (ksym == XK_Control_L) {
++ highlighturls();
++ } else if (ev->type == KeyRelease && e->keycode == XKeysymToKeycode(e->display, XK_Control_L)) {
++ unhighlighturls();
++ }
++
++ /* KeyRelease not relevant to shortcuts */
++ if (ev->type == KeyRelease)
++ return;
++
+ /* 1. shortcuts */
+ for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
+ if (ksym == bp->keysym && match(bp->mod, e->state)) {
+--
+2.44.0
+
