Make prompt use internal user input reader

[tig] / tig.c

diff --git a/tig.c b/tig.c
index cf65447..cda8a71 100644 (file)
--- a/tig.c
+++ b/tig.c
@@ -2592,6 +2592,68 @@ init_display(void)
        wbkgdset(status_win, get_line_attr(LINE_STATUS));
 }
 
+static int
+read_prompt(void)
+{
+       enum { READING, STOP, CANCEL } status = READING;
+       char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
+       int pos = 0;
+
+       while (status == READING) {
+               struct view *view;
+               int i, key;
+
+               foreach_view (view, i)
+                       update_view(view);
+
+               report(":%.*s", pos, buf);
+               /* Refresh, accept single keystroke of input */
+               key = wgetch(status_win);
+               switch (key) {
+               case KEY_RETURN:
+               case KEY_ENTER:
+               case '\n':
+                       status = pos ? STOP : CANCEL;
+                       break;
+
+               case KEY_BACKSPACE:
+                       if (pos > 0)
+                               pos--;
+                       else
+                               status = CANCEL;
+                       break;
+
+               case KEY_ESC:
+                       status = CANCEL;
+                       break;
+
+               case ERR:
+                       break;
+
+               default:
+                       if (pos >= sizeof(buf)) {
+                               report("Input string too long");
+                               return ERR;
+                       }
+
+                       if (isprint(key))
+                               buf[pos++] = (char) key;
+               }
+       }
+
+       if (status == CANCEL) {
+               /* Clear the status window */
+               report("");
+               return ERR;
+       }
+
+       buf[pos++] = 0;
+       if (!string_format(opt_cmd, "git %s", buf))
+               return ERR;
+       opt_request = REQ_VIEW_PAGER;
+
+       return OK;
+}
 
 /*
  * Repository references
@@ -2841,23 +2903,8 @@ main(int argc, char *argv[])
                 * status_win restricted. */
                switch (request) {
                case REQ_PROMPT:
-                       report(":");
-                       /* Temporarily switch to line-oriented and echoed
-                        * input. */
-                       nocbreak();
-                       echo();
-
-                       if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) {
-                               memcpy(opt_cmd, "git ", 4);
-                               opt_request = REQ_VIEW_PAGER;
-                       } else {
-                               report("Prompt interrupted by loading view, "
-                                      "press 'z' to stop loading views");
+                       if (read_prompt() == ERR)
                                request = REQ_SCREEN_UPDATE;
-                       }
-
-                       noecho();
-                       cbreak();
                        break;
 
                case REQ_SCREEN_RESIZE: