1 files changed, 43 insertions, 9 deletions

@@ -66,6 +66,7 @@ log() {
 bollux() {
         run bollux_config
         run bollux_args "$@"
+        run history_init
 
         if [[ ! "${BOLLUX_URL:+isset}" ]]; then
                 run prompt GO BOLLUX_URL
@@ -307,7 +308,7 @@ request_url() {
 }
 
 handle_response() {
-        local url="$1" code meta
+        local URL="$1" code meta
 
         while read -r -d $'\r' hdr; do
                 code="$(gawk '{print $1}' <<<"$hdr")"
@@ -322,14 +323,14 @@ handle_response() {
         case "$code" in
         1*)
                 REDIRECTS=0
-                BOLLUX_URL="$URL"
+                run history_append "$URL"
                 run prompt "$meta" QUERY
                 # shellcheck disable=2153
                 run blastoff "?$QUERY"
                 ;;
         2*)
                 REDIRECTS=0
-                BOLLUX_URL="$URL"
+                run history_append "$URL"
                 run display "$meta"
                 ;;
         3*)
@@ -337,7 +338,6 @@ handle_response() {
                 if ((REDIRECTS > BOLLUX_MAXREDIR)); then
                         die $((100 + code)) "Too many redirects!"
                 fi
-                BOLLUX_URL="$URL"
                 run blastoff "$meta"
                 ;;
         4*)
@@ -368,7 +368,6 @@ display() {
         mime="$(trim "${hdr[0],,}")"
         for ((i = 1; i <= "${#hdr[@]}"; i++)); do
                 h="$(trim "${hdr[$i]}")"
-                log d "'$h'"
                 case "$h" in
                 charset=*) charset="${h#charset=}" ;;
                 esac
@@ -590,10 +589,16 @@ handle_keypress() {
                 run blastoff -u "$URL"
                 ;;
         50) # [ - back in the history
-                run history_back
+                run history_back || {
+                        sleep 0.5
+                        run blastoff "$BOLLUX_URL"
+                }
                 ;;
         51) # ] - forward in the history
-                run history_forward
+                run history_forward || {
+                        sleep 0.5
+                        run blastoff "$BOLLUX_URL"
+                }
                 ;;
         52) # r - re-request the current resource
                 run blastoff "$BOLLUX_URL"
@@ -643,8 +648,37 @@ download() {
         fi
 }
 
-history_back() { log error "Not implemented."; }
-history_forward() { log error "Not implemented."; }
+history_init() {
+        declare -a HISTORY # history is kept in an array
+        HN=0               # position of history in the array
+}
+
+history_append() { # history_append URL
+        BOLLUX_URL="$1"
+        HISTORY[$HN]="$BOLLUX_URL"
+        log d "HN=$HN HISTORY: ${HISTORY[*]}"
+        ((HN += 1))
+}
+
+history_back() {
+        log d "HN=$HN"
+        ((HN -= 2))
+        if ((HN <= 0)); then
+                HN=0
+                log e "Beginning of history."
+                return 1
+        fi
+        blastoff "${HISTORY[$HN]}"
+}
+history_forward() {
+        log d "HN=$HN"
+        if ((HN >= ${#HISTORY[@]})); then
+                HN="${#HISTORY[@]}"
+                log e "End of history."
+                return 1
+        fi
+        blastoff "${HISTORY[$HN]}"
+}
 
 if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
         run bollux "$@"