adding pdf and image preview to vifm

.local/bin/vifm/vifmimg

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+readonly ID_PREVIEW="preview"
+
+#AUTO_REMOVE="yes"
+# By enabling this option the script will remove the preview file after it is drawn
+# and by doing so the preview will always be up-to-date with the file.
+# This however, requires more CPU and therefore affects the overall performance.
+
+if [ -e "$FIFO_UEBERZUG" ]; then
+    if [[ "$1" == "draw" ]]; then
+        declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
+                           [x]="$2" [y]="$3" [width]="$4" [height]="$5" \
+                           [path]="${PWD}/$6") \
+            > "$FIFO_UEBERZUG"
+
+    elif [[ "$1" == "videopreview" ]]; then
+        echo -e "Loading preview..\nFile: $6"
+        [[ ! -d "/tmp${PWD}/$6/" ]] && mkdir -p "/tmp${PWD}/$6/"
+        [[ ! -f "/tmp${PWD}/$6.png" ]] && ffmpegthumbnailer -i "${PWD}/$6" -o "/tmp${PWD}/$6.png" -s 0 -q 10
+        declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
+                           [x]="$2" [y]="$3" [width]="$4" [height]="$5" \
+                           [path]="/tmp${PWD}/$6.png") \
+            > "$FIFO_UEBERZUG"
+
+    elif [[ "$1" == "gifpreview" ]]; then
+        echo -e "Loading preview..\nFile: $6"
+        [[ ! -d "/tmp${PWD}/$6/" ]] && mkdir -p "/tmp${PWD}/$6/" && convert -coalesce "${PWD}/$6" "/tmp${PWD}/$6/$6.png"
+        for frame in $(ls -1 /tmp${PWD}/$6/$6*.png | sort -V); do
+           declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
+                           [x]="$2" [y]="$3" [width]="$4" [height]="$5" \
+                           [path]="$frame") \
+            > "$FIFO_UEBERZUG"
+            # Sleep between frames to make the animation smooth.
+            sleep .07
+        done
+
+    elif [[ "$1" == "pdfpreview" ]]; then
+        echo -e "Loading preview..\nFile: $6"
+        [[ ! -d "/tmp${PWD}/$6/" ]] && mkdir -p "/tmp${PWD}/$6/"
+        [[ ! -f "/tmp${PWD}/$6.png" ]] && pdftoppm -png -singlefile "$6" "/tmp${PWD}/$6"
+        declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
+                           [x]="$2" [y]="$3" [width]="$4" [height]="$5" \
+                           [path]="/tmp${PWD}/$6.png") \
+            > "$FIFO_UEBERZUG"
+
+    elif [[ "$1" == "clear" ]]; then
+        declare -p -A cmd=([action]=remove [identifier]="$ID_PREVIEW") \
+            > "$FIFO_UEBERZUG"
+        [[ ! -z $AUTO_REMOVE ]] && [[ -f "/tmp${PWD}/$6.png" ]] && rm -f "/tmp${PWD}/$6.png"
+        [[ ! -z $AUTO_REMOVE ]] && [[ -d "/tmp${PWD}/$6/" ]] && rm -rf "/tmp${PWD}/$6/"
+
+    fi
+fi

.local/bin/vifm/vifmrun

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+export FIFO_UEBERZUG="/tmp/vifm-ueberzug-${PPID}"
+
+function cleanup {
+    rm "$FIFO_UEBERZUG" 2>/dev/null
+    pkill -P $$ 2>/dev/null
+}
+
+rm "$FIFO_UEBERZUG" 2>/dev/null
+mkfifo "$FIFO_UEBERZUG"
+trap cleanup EXIT
+tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser bash &
+
+vifm
+cleanup