Add notice about empty pager view

Similar to notice for blob view, mention when there is no pager content
to view and suggest the user to open the prompt to run a command.

diff --git a/tig.c b/tig.c
index 4b4a8c2..dde4369 100644 (file)
--- a/tig.c
+++ b/tig.c
@@ -173,6 +173,9 @@ string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
 #define string_ncopy(dst, src, srclen) \
        string_ncopy_do(dst, sizeof(dst), src, srclen)
 
+#define string_copy_rev(dst, src) \
+       string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
+
 static char *
 chomp_string(char *name)
 {
@@ -1829,7 +1832,7 @@ begin_update(struct view *view)
        view->offset = 0;
        view->lines  = 0;
        view->lineno = 0;
-       string_copy(view->vid, id);
+       string_copy_rev(view->vid, id);
 
        if (view->line) {
                int i;
@@ -2507,8 +2510,8 @@ pager_select(struct view *view, struct line *line)
                char *text = line->data + STRING_SIZE("commit ");
 
                if (view != VIEW(REQ_VIEW_PAGER))
-                       string_copy(view->ref, text);
-               string_copy(ref_commit, text);
+                       string_copy_rev(view->ref, text);
+               string_copy_rev(ref_commit, text);
        }
 }
 
@@ -2686,13 +2689,13 @@ tree_select(struct view *view, struct line *line)
        char *text = line->data + STRING_SIZE("100644 blob ");
 
        if (line->type == LINE_TREE_FILE) {
-               string_ncopy(ref_blob, text, 40);
+               string_copy_rev(ref_blob, text);
 
        } else if (line->type != LINE_TREE_DIR) {
                return;
        }
 
-       string_ncopy(view->ref, text, 40);
+       string_copy_rev(view->ref, text);
 }
 
 static struct view_ops tree_ops = {
@@ -3061,7 +3064,7 @@ main_read(struct view *view, char *line)
                line += STRING_SIZE("commit ");
 
                view->line[view->lines++].data = commit;
-               string_copy(commit->id, line);
+               string_copy_rev(commit->id, line);
                commit->refs = get_refs(commit->id);
                graph->commit = commit;
                break;
@@ -3196,8 +3199,8 @@ main_select(struct view *view, struct line *line)
 {
        struct commit *commit = line->data;
 
-       string_copy(view->ref, commit->id);
-       string_copy(ref_commit, view->ref);
+       string_copy_rev(view->ref, commit->id);
+       string_copy_rev(ref_commit, view->ref);
 }
 
 static struct view_ops main_ops = {
@@ -3634,7 +3637,7 @@ read_ref(char *id, int idlen, char *name, int namelen)
        ref->name[namelen] = 0;
        ref->tag = tag;
        ref->remote = remote;
-       string_copy(ref->id, id);
+       string_copy_rev(ref->id, id);
 
        return OK;
 }