91 lines
2.5 KiB
Clojure
91 lines
2.5 KiB
Clojure
(ns examples.spinner
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"Spinner example - demonstrates animated loading states.
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Mirrors bubbletea's spinner example."
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(:require [tui.core :as tui]))
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;; === Spinner Frames ===
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(def spinner-styles
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{:dots ["⠋" "⠙" "⠹" "⠸" "⠼" "⠴" "⠦" "⠧" "⠇" "⠏"]
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:line ["|" "/" "-" "\\"]
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:circle ["◐" "◓" "◑" "◒"]
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:square ["◰" "◳" "◲" "◱"]
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:triangle ["◢" "◣" "◤" "◥"]
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:bounce ["⠁" "⠂" "⠄" "⠂"]
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:dots2 ["⣾" "⣽" "⣻" "⢿" "⡿" "⣟" "⣯" "⣷"]
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:arc ["◜" "◠" "◝" "◞" "◡" "◟"]
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:moon ["🌑" "🌒" "🌓" "🌔" "🌕" "🌖" "🌗" "🌘"]})
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;; === Model ===
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(def initial-model
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{:frame 0
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:style :dots
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:loading true
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:message "Loading..."
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:styles (keys spinner-styles)
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:style-idx 0})
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;; === Update ===
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(defn update-model [{:keys [styles style-idx] :as model} msg]
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(cond
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;; Quit
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(or (tui/key= msg "q")
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(tui/key= msg [:ctrl \c]))
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[model tui/quit]
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;; Tick - advance frame
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(= (first msg) :tick)
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(if (:loading model)
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[(update model :frame inc) (tui/tick 80)]
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[model nil])
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;; Space - simulate completion
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(tui/key= msg " ")
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[(assoc model :loading false :message "Done!") nil]
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;; Tab - change spinner style
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(tui/key= msg :tab)
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(let [new-idx (mod (inc style-idx) (count styles))]
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[(assoc model
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:style-idx new-idx
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:style (nth styles new-idx))
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nil])
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;; r - restart
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(tui/key= msg "r")
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[(assoc model :loading true :frame 0 :message "Loading...")
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(tui/tick 80)]
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:else
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[model nil]))
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;; === View ===
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(defn spinner-view [{:keys [frame style]}]
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(let [frames (get spinner-styles style)
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idx (mod frame (count frames))]
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(nth frames idx)))
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(defn view [{:keys [loading message style] :as model} _size]
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[:col {:gap 1}
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[:box {:border :rounded :padding [1 2]}
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[:col {:gap 1}
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[:text {:bold true} "Spinner Demo"]
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[:text ""]
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[:row {:gap 1}
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(if loading
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[:text {:fg :cyan} (spinner-view model)]
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[:text {:fg :green} "✓"])
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[:text message]]
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[:text ""]
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[:text {:fg :gray} (str "Style: " (name style))]]]
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[:col
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[:text {:fg :gray} "tab: change style space: complete r: restart q: quit"]]])
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;; === Main ===
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(defn -main [& _args]
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(println "Starting spinner...")
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(tui/run {:init initial-model
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:update update-model
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:view view
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:init-cmd (tui/tick 80)})
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(println "Spinner demo finished."))
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