+static void annotate_browser__set_top(struct annotate_browser *self,
+ struct rb_node *nd)
+{
+ struct objdump_line_rb_node *rbpos;
+ struct objdump_line *pos;
+ unsigned back;
+
+ ui_browser__refresh_dimensions(&self->b);
+ back = self->b.height / 2;
+ rbpos = rb_entry(nd, struct objdump_line_rb_node, rb_node);
+ pos = ((struct objdump_line *)rbpos) - 1;
+ self->b.top_idx = self->b.index = rbpos->idx;
+
+ while (self->b.top_idx != 0 && back != 0) {
+ pos = list_entry(pos->node.prev, struct objdump_line, node);
+
+ --self->b.top_idx;
+ --back;
+ }
+
+ self->b.top = pos;
+ self->curr_hot = nd;
+}
+
+static int annotate_browser__run(struct annotate_browser *self,
+ struct newtExitStruct *es)
+{
+ struct rb_node *nd;
+ struct hist_entry *he = self->b.priv;
+
+ if (ui_browser__show(&self->b, he->ms.sym->name) < 0)
+ return -1;
+
+ ui_helpline__fpush("<- or ESC: exit, TAB/shift+TAB: cycle thru samples");
+ newtFormAddHotKey(self->b.form, NEWT_KEY_LEFT);
+
+ nd = self->curr_hot;
+ if (nd) {
+ newtFormAddHotKey(self->b.form, NEWT_KEY_TAB);
+ newtFormAddHotKey(self->b.form, NEWT_KEY_UNTAB);
+ }
+
+ while (1) {
+ ui_browser__run(&self->b, es);
+
+ if (es->reason != NEWT_EXIT_HOTKEY)
+ break;
+
+ switch (es->u.key) {
+ case NEWT_KEY_TAB:
+ nd = rb_prev(nd);
+ if (nd == NULL)
+ nd = rb_last(&self->entries);
+ annotate_browser__set_top(self, nd);
+ break;
+ case NEWT_KEY_UNTAB:
+ nd = rb_next(nd);
+ if (nd == NULL)
+ nd = rb_first(&self->entries);
+ annotate_browser__set_top(self, nd);
+ break;
+ default:
+ goto out;
+ }
+ }
+out:
+ newtFormDestroy(self->b.form);
+ newtPopWindow();
+ ui_helpline__pop();
+ return 0;
+}
+