feat(contrib): add fuzzel img script (sentriz#144)

* feat(contrib): add fuzzel img script

* feat(contrib): hide id

`--with-nth` [bug](https://codeberg.org/dnkl/fuzzel/issues/551) [fixed](https://codeberg.org/dnkl/fuzzel/pulls/552)

* docs(contrib): fuzzel-img add command

Author: danielwerg

contrib/cliphist-fuzzel-img

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# requires imagemagick to generate thumbnails
+
+thumbnail_size=64
+thumbnail_dir="${XDG_CACHE_HOME:-$HOME/.cache}/cliphist/thumbnails"
+
+cliphist_list=$(cliphist list)
+if [ -z "$cliphist_list" ]; then
+  fuzzel -d --placeholder "cliphist: please store something first" --lines 0
+  rm -rf "$thumbnail_dir"
+  exit
+fi
+
+[ -d "$thumbnail_dir" ] || mkdir -p "$thumbnail_dir"
+
+# Write square shaped thumbnail to cache if it doesn't exist
+read -r -d '' thumbnail <<EOF
+/^[0-9]+\s<meta http-equiv=/ { next }
+match(\$0, /^([0-9]+)\s(\[\[\s)?binary.*(jpg|jpeg|png|bmp)/, grp) {
+  cliphist_item_id=grp[1]
+  ext=grp[3]
+  thumbnail_file=cliphist_item_id"."ext
+  system("[ -f ${thumbnail_dir}/"thumbnail_file" ] || echo " cliphist_item_id "\\\\\t | cliphist decode | magick - -thumbnail ${thumbnail_size}^ -gravity center -extent ${thumbnail_size} ${thumbnail_dir}/"thumbnail_file)
+  print \$0"\0icon\x1f${thumbnail_dir}/"thumbnail_file
+  next
+}
+1
+EOF
+
+item=$(echo "$cliphist_list" | gawk "$thumbnail" | fuzzel -d --placeholder "Search clipboard..." --counter --no-sort --with-nth 2)
+exit_code=$?
+
+# ALT+0 to clear history
+if [ "$exit_code" -eq 19 ]; then
+  confirmation=$(echo -e "No\nYes" | fuzzel -d --placeholder "Delete history?" --lines 2)
+  [ "$confirmation" == "Yes" ] && rm ~/.cache/cliphist/db && rm -rf "$thumbnail_dir"
+else
+  [ -z "$item" ] || echo "$item" | cliphist decode | wl-copy
+fi
+
+# Delete cached thumbnails that are no longer in cliphist db
+find "$thumbnail_dir" -type f | while IFS= read -r thumbnail_file; do
+  cliphist_item_id=$(basename "${thumbnail_file%.*}")
+  if [ -z "$(grep <<< "$cliphist_list" "^${cliphist_item_id}\s\[\[ binary data")" ]; then
+    rm "$thumbnail_file"
+  fi
+done

readme.md

@@ -77,6 +77,15 @@ Or else query manually:
 
 </details>
 
+<details>
+<summary>fuzzel (dmenu mode with images)</summary>
+
+`./cliphist-fuzzel-img`
+
+(Requires [contrib/cliphist-fuzzel-img](./contrib/cliphist-fuzzel-img))
+
+</details>
+
 <details>
 <summary>rofi (custom mode)</summary>