vte: Add bracketed paste support (DEC 2004)

When set, enclose the pasted data with escape character.

Signed-off-by: Jocelyn Falempe <[email protected]>

Author: Jocelyn Falempe

src/tsm/libtsm.h

@@ -377,6 +377,7 @@ enum tsm_vte_color {
 #define TSM_VTE_MOUSE_EVENT_ANY  1003 /* sends position on mouse click and mouse move */
 #define TSM_VTE_MOUSE_MODE_SGR   1006 /* modern mode that allows unlimited x and y coordinates */
 #define TSM_VTE_MOUSE_MODE_PIXEL 1016 /* sends pixel coordinates instead of cell coordinates */
+#define TSM_VTE_BRACKETED_PASTE  2004 /* enclose paste data with escape characters */
 
 enum tsm_mouse_track_mode {
 	TSM_MOUSE_TRACK_DISABLE = 0, /* don't track mouse events */
@@ -520,6 +521,7 @@ bool tsm_vte_handle_mouse(struct tsm_vte *vte, unsigned int cell_x,
         unsigned int cell_y, unsigned int pixel_x, unsigned int pixel_y,
         unsigned int button, unsigned int event, unsigned char flags);
 
+void tsm_vte_paste(struct tsm_vte *vte, const char *data);
 /** @} */
 
 #ifdef __cplusplus

src/tsm/libtsm.sym

@@ -137,3 +137,8 @@ LIBTSM_4_3 {
 global:
 	tsm_screen_selection_word;
 } LIBTSM_4_1;
+
+LIBTSM_4_4 {
+global:
+	tsm_vte_paste;
+} LIBTSM_4_3;

src/tsm/tsm-vte.c

@@ -176,6 +176,7 @@ struct tsm_vte {
 	unsigned int mouse_event;
 	unsigned int mouse_last_col;
 	unsigned int mouse_last_row;
+	bool bracketed_paste;
 
 	uint8_t (*custom_palette_storage)[3];
 	uint8_t (*palette)[3];
@@ -1756,6 +1757,9 @@ static void csi_mode(struct tsm_vte *vte, bool set)
 			    continue;
 			}
 			continue;
+		case TSM_VTE_BRACKETED_PASTE:
+			vte->bracketed_paste = set;
+			continue;
 		default:
 			llog_debug(vte, "unknown DEC %set-Mode %d",
 				   set?"S":"Res", vte->csi_argv[i]);
@@ -3358,3 +3362,22 @@ bool tsm_vte_handle_mouse(struct tsm_vte *vte, unsigned int cell_x,
 
 	return false;
 }
+
+void tsm_vte_paste(struct tsm_vte *vte, const char *data)
+{
+	if (vte->bracketed_paste) {
+		const char start[] = "\e[200~";
+		const char end[] = "\e[201~";
+		char *buf;
+		int len;
+
+		len = strlen(data) + sizeof(start) + sizeof(end) + 1;
+		buf = malloc(len);
+		if (!buf)
+			return;
+		snprintf(buf, len, "%s%s%s", start, data, end);
+		vte_write(vte, buf, strlen(buf));
+		free(buf);
+	} else
+		vte_write(vte, data, strlen(data));
+}