Adding openurlonclick patch ref. #32

README.md

@@ -15,6 +15,8 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
 
 ### Changelog:
 
+2021-07-07 - Added sixel scrollback and the openurlonclick patch
+
 2021-06-09 - Added the hide terminal cursor patch
 
 2021-05-16 - Added swapmouse patch
@@ -178,6 +180,9 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
    - [open-copied-url](https://st.suckless.org/patches/open_copied_url/)
       - open contents of the clipboard in a user-defined browser
 
+   - [openurlonclick](https://www.reddit.com/r/suckless/comments/cc83om/st_open_url/)
+      - allows for URLs to be opened directly when you click on them
+
    - [osc_10_11_12_2](https://st.suckless.org/patches/osc_10_11_12_2/)
       - this patch adds support for OSC escape sequences 10, 11, and 12 in the way they are
         implemented in most other terminals (e.g libvte, kitty)

config.def.h

@@ -22,6 +22,10 @@ int borderperc = 20;
 static int borderpx = 2;
 #endif // RELATIVEBORDER_PATCH
 
+#if OPENURLONCLICK_PATCH
+static char *url_opener = "xdg-open";
+#endif // OPENURLONCLICK_PATCH
+
 /*
  * What program is execed by st depends of these precedence rules:
  * 1: program passed with -e

patch/openurlonclick.c

@@ -0,0 +1,58 @@
+void
+openUrlOnClick(int col, int row, char* url_opener)
+{
+   int row_start = row;
+   int col_start = col;
+   int row_end = row;
+   int col_end = col;
+
+   if (term.line[row][col].u == ' ')
+       return;
+
+   /* while previous character is not space */
+   while (term.line[row_start][col_start-1].u != ' ') {
+       if (col_start == 0)
+       {
+           // Before moving start pointer to the previous line we check if it ends with space
+           if (term.line[row_start - 1][term.col - 1].u == ' ')
+               break;
+           col_start=term.col - 1;
+           row_start--;
+       } else {
+           col_start--;
+       }
+   }
+
+   /* while next character is not space nor end of line */
+   while (term.line[row_end][col_end].u != ' ') {
+       col_end++;
+       if (col_end == term.col - 1)
+       {
+           if (term.line[row_end + 1][0].u == ' ')
+               break;
+           col_end=0;
+           row_end++;
+       }
+   }
+
+   char url[200] = "";
+   int url_index=0;
+   do {
+       url[url_index] = term.line[row_start][col_start].u;
+       url_index++;
+       col_start++;
+       if (col_start == term.col)
+       {
+           col_start = 0;
+           row_start++;
+       }
+   } while (row_start != row_end || col_start != col_end);
+
+   if (strncmp("http", url, 4) != 0) {
+       return;
+   }
+
+   char command[strlen(url_opener)+1+strlen(url)];
+   sprintf(command, "%s %s", url_opener, url);
+   system(command);
+}

patch/openurlonclick.h

@@ -0,0 +1 @@
+static void openUrlOnClick(int col, int row, char* url_opener);

patch/x_include.c

@@ -17,6 +17,9 @@
 #if KEYBOARDSELECT_PATCH
 #include "keyboardselect_x.c"
 #endif
+#if OPENURLONCLICK_PATCH
+#include "openurlonclick.c"
+#endif
 #if RIGHTCLICKTOPLUMB_PATCH
 #include "rightclicktoplumb_x.c"
 #endif

patch/x_include.h

@@ -17,6 +17,9 @@
 #if NETWMICON_PATCH
 #include "netwmicon.h"
 #endif
+#if OPENURLONCLICK_PATCH
+#include "openurlonclick.h"
+#endif
 #if RIGHTCLICKTOPLUMB_PATCH
 #include "rightclicktoplumb_x.h"
 #endif

patches.def.h

@@ -219,6 +219,13 @@
  */
 #define OPENCOPIED_PATCH 0
 
+/* This patch allows for URLs to be opened directly when you click on them. This may not work with
+ * all terminal applications.
+ *
+ * https://www.reddit.com/r/suckless/comments/cc83om/st_open_url/
+ */
+#define OPENURLONCLICK_PATCH 0
+
 /* This patch adds support for OSC escape sequences 10, 11 and 12 that modify the background,
  * foreground and cursor colors in the way they are implemented in most other terminals
  * (e.g libvte, kitty). Specifically it differs from https://st.suckless.org/patches/osc_10_11_12/

x.c

@@ -710,11 +710,19 @@ brelease(XEvent *e)
 	if (mouseaction(e, 1))
 		return;
 	#if VIM_BROWSE_PATCH
-	if (e->xbutton.button == Button1 && !IS_SET(MODE_NORMAL))
+	if (e->xbutton.button == Button1 && !IS_SET(MODE_NORMAL)) {
 		mousesel(e, 1);
+		#if OPENURLONCLICK_PATCH
+		openUrlOnClick(evcol(e), evrow(e), url_opener);
+		#endif // OPENURLONCLICK_PATCH
+	}
 	#else
-	if (e->xbutton.button == Button1)
+	if (e->xbutton.button == Button1) {
 		mousesel(e, 1);
+		#if OPENURLONCLICK_PATCH
+		openUrlOnClick(evcol(e), evrow(e), url_opener);
+		#endif // OPENURLONCLICK_PATCH
+	}
 	#endif // VIM_BROWSE_PATCH
 	#if RIGHTCLICKTOPLUMB_PATCH
 	else if (e->xbutton.button == Button3)