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logseq/src/main/frontend/components/search.cljs

281 lines
12 KiB
Clojure

(ns frontend.components.search
(:require [rum.core :as rum]
[frontend.util :as util]
[frontend.handler.route :as route]
[frontend.handler.page :as page-handler]
[frontend.handler.file :as file-handler]
[frontend.db :as db]
[frontend.handler.search :as search-handler]
[frontend.ui :as ui]
[frontend.state :as state]
[frontend.mixins :as mixins]
[frontend.config :as config]
[frontend.search :as search]
[clojure.string :as string]
[goog.dom :as gdom]
[medley.core :as medley]
[frontend.context.i18n :as i18n]))
(rum/defc dropdown-content-wrapper [state content]
[:div.origin-top-left.absolute.left-0.mt-0.rounded-md.shadow-lg
{:class (case state
"entering" "transition ease-out duration-100 transform opacity-0 scale-95"
"entered" "transition ease-out duration-100 transform opacity-100 scale-100"
"exiting" "transition ease-in duration-75 transform opacity-100 scale-100"
"exited" "transition ease-in duration-75 transform opacity-0 scale-95")}
content])
(defn- partition-between
"Split `coll` at positions where `pred?` is true."
[pred? coll]
(let [switch (reductions not= true (map pred? coll (rest coll)))]
(map (partial map first) (partition-by second (map list coll switch)))))
(defn highlight-exact-query
[content q]
(let [q-words (string/split q #" ")
lc-content (string/lower-case content)
lc-q (string/lower-case q)]
(if (or (string/includes? lc-content lc-q)
(not (re-find #" " q)))
(let [i (string/index-of lc-content lc-q)
[before after] [(subs content 0 i) (subs content (+ i (count q)))]]
[:p
(when-not (string/blank? before)
[:span before])
[:mark (subs content i (+ i (count q)))]
(when-not (string/blank? after)
[:span after])])
(let [elements (loop [words q-words
content content
result []]
(if (and (seq words) content)
(let [word (first words)
lc-word (string/lower-case word)
lc-content (string/lower-case content)]
(if-let [i (string/index-of lc-content lc-word)]
(recur (rest words)
(subs content (+ i (count word)))
(vec
(concat result
[[:span (subs content 0 i)]
[:mark (subs content i (+ i (count word)))]])))
(recur nil
content
result)))
(conj result [:span content])))]
[:p elements]))))
(rum/defc highlight-fuzzy
[content indexes]
(let [n (count content)
max-hightlighted-len 512
max-surrounding-len 512
first-index (first indexes)
last-index (nth indexes (dec (count indexes)))
last-index (min (+ first-index max-hightlighted-len -1) last-index)
last-index* (+ last-index max-surrounding-len)
indexes (take-while #(<= % last-index*) indexes)
content-begin (max 0 (- first-index max-surrounding-len))
content-end (min n (+ last-index 1 max-surrounding-len)) ; exclusive
; finds inconsecutive sections
sections (partition-between #(> (- %2 %) 1) indexes)
hl-ranges (for [sec sections
:let [begin (first sec)
end (-> sec last inc)]]
[begin end]) ; `end` is exclusive
hl-ranges* (concat [[content-begin content-begin]]
hl-ranges
[[content-end content-end]])
normal-ranges (for [[[_ begin] [end _]] (partition 2 1 hl-ranges*)] [begin end])
normal-hl-pairs (partition-all 2 (medley/interleave-all normal-ranges hl-ranges))]
[:p
(mapcat
(fn [[normal highlighted]]
[(when-some [[begin end] normal]
[:span (subs content begin end)])
(when-some [[begin end] highlighted]
[:mark (subs content begin end)])])
normal-hl-pairs)]))
(rum/defc highlight
[content q]
(let [q-pattern (->> q
(search/escape-str)
(str "(?i)")
(re-pattern))
n (count content)
[before after] (string/split content q-pattern 2)
[before after] (if (>= n 64)
[(if before (apply str (take-last 48 before)))
(if after (apply str (take 48 after)))]
[before after])]
[:p
(when-not (string/blank? before)
[:span before])
[:mark q]
(when-not (string/blank? after)
[:span after])]))
(defn- leave-focus
[]
(when-let [input (gdom/getElement "search_field")]
(.blur input)))
(defonce search-timeout (atom nil))
(rum/defc search-auto-complete
[{:keys [pages files blocks] :as result} search-q]
(rum/with-context [[t] i18n/*tongue-context*]
(let [new-file (when-let [ext (util/get-file-ext search-q)]
(when (contains? config/mldoc-support-formats (keyword (string/lower-case ext)))
[{:type :new-file}]))
pages (map (fn [page] {:type :page :data page}) pages)
files (map (fn [file] {:type :file :data file}) files)
blocks (map (fn [block] {:type :block :data block}) blocks)
new-page (if (or
(and (seq pages)
(= (string/lower-case search-q)
(string/lower-case (:data (first pages)))))
(nil? result))
[]
[{:type :new-page}])
result (if config/publishing?
(concat pages files blocks)
(concat new-page pages new-file files blocks))]
[:div.absolute.rounded-md.shadow-lg
{:style (merge
{:top 48
:left 32
:width 500})}
(ui/auto-complete
result
{:on-chosen (fn [{:keys [type data]}]
(search-handler/clear-search!)
(leave-focus)
(case type
:new-page
(page-handler/create! search-q)
:page
(route/redirect! {:to :page
:path-params {:name data}})
:new-file
(file-handler/create! search-q)
:file
(route/redirect! {:to :file
:path-params {:path data}})
:block
(let [block-uuid (uuid (:block/uuid data))
page (:page/name (:block/page (db/entity [:block/uuid block-uuid])))]
(route/redirect! {:to :page
:path-params {:name page}
:query-params {:anchor (str "ls-block-" (:block/uuid data))}}))
nil))
:on-shift-chosen (fn [{:keys [type data]}]
(case type
:page
(let [page (db/entity [:page/name (string/lower-case data)])]
(state/sidebar-add-block!
(state/get-current-repo)
(:db/id page)
:page
{:page page}))
:block
(let [block-uuid (uuid (:block/uuid data))
block (db/entity [:block/uuid block-uuid])]
(state/sidebar-add-block!
(state/get-current-repo)
(:db/id block)
:block
block))
nil))
:item-render (fn [{:keys [type data]}]
(case type
:new-page
[:div.text.font-bold (str (t :new-page) ": ")
[:span.ml-1 (str "\"" search-q "\"")]]
:new-file
[:div.text.font-bold (str (t :new-file) ": ")
[:span.ml-1 (str "\"" search-q "\"")]]
:page
[:div.text-sm.font-medium
[:span.text-xs.rounded.border.mr-2.px-1 {:title "Page"}
"P"]
data]
:file
[:div.text-sm.font-medium
[:span.text-xs.rounded.border.mr-2.px-1 {:title "File"}
"F"]
data]
:block
(let [{:block/keys [page content indexes]} data
page (or (:page/original-name page)
(:page/name page))]
[:div.flex-1
[:div.text-sm.font-medium (str "-> " page)]
(highlight-exact-query content search-q)])
nil))})])))
(rum/defc search < rum/reactive
(mixins/event-mixin
(fn [state]
(mixins/hide-when-esc-or-outside
state
:on-hide (fn []
(search-handler/clear-search!)
(leave-focus)))))
[]
(let [search-result (state/sub :search/result)
search-q (state/sub :search/q)
show-result? (boolean (seq search-result))]
(rum/with-context [[t] i18n/*tongue-context*]
[:div#search.flex-1.flex
[:div.inner
[:label.sr-only {:for "search_field"} (t :search)]
[:div#search-wrapper.relative.w-full.text-gray-400.focus-within:text-gray-600
[:div.absolute.inset-y-0.flex.items-center.pointer-events-none.left-0
[:svg.h-5.w-5
{:view-box "0 0 20 20", :fill "currentColor"}
[:path
{:d
"M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z"
:clip-rule "evenodd"
:fill-rule "evenodd"}]]]
[:input#search_field.block.w-full.h-full.pr-3.py-2.rounded-md.focus:outline-none.placeholder-gray-500.focus:placeholder-gray-400.sm:text-sm.sm:bg-transparent
{:style {:padding-left "2rem"}
:placeholder (t :search)
:auto-complete (if (util/chrome?) "chrome-off" "off") ; off not working here
:default-value ""
:on-change (fn [e]
(when @search-timeout
(js/clearTimeout @search-timeout))
(let [value (util/evalue e)]
(if (string/blank? value)
(search-handler/clear-search!)
(do
(state/set-q! value)
(reset! search-timeout
(js/setTimeout
#(search-handler/search value)
500))))))}]
(when-not (string/blank? search-q)
(ui/css-transition
{:class-names "fade"
:timeout {:enter 500
:exit 300}}
(search-auto-complete search-result search-q)))]]])))