(ns frontend.components.editor (:require [clojure.string :as string] [dommy.core :as d] [frontend.commands :as commands :refer [*angle-bracket-caret-pos *first-command-group *matched-block-commands *matched-commands *show-block-commands *show-commands *slash-caret-pos]] [frontend.components.block :as block] [frontend.components.datetime :as datetime-comp] [frontend.components.search :as search] [frontend.components.svg :as svg] [frontend.config :as config] [frontend.handler.notification :as notification] [frontend.db :as db] [frontend.extensions.zotero :as zotero] [frontend.handler.editor :as editor-handler :refer [get-state]] [frontend.handler.editor.lifecycle :as lifecycle] [frontend.handler.page :as page-handler] [frontend.mixins :as mixins] [frontend.modules.shortcut.core :as shortcut] [frontend.state :as state] [frontend.ui :as ui] [frontend.util :as util] [frontend.util.cursor :as cursor] [frontend.util.keycode :as keycode] [goog.dom :as gdom] [promesa.core :as p] [rum.core :as rum])) (rum/defc commands < rum/reactive [id format] (let [matched (util/react *matched-commands)] (when (util/react *show-commands) (ui/auto-complete matched {:get-group-name (fn [item] (get *first-command-group (first item))) :item-render (fn [item] (let [command-name (first item) command-doc (get item 2) doc (when (state/show-command-doc?) command-doc)] (cond (string? doc) [:div {:title doc} command-name] (vector? doc) [:div.has-help command-name (ui/tippy {:html doc :interactive true :fixed-position? true :position "right"} [:small (svg/help-circle)])] :else [:div command-name]))) :on-chosen (fn [chosen-item] (let [command (first chosen-item)] (reset! commands/*current-command command) (let [command-steps (get (into {} matched) command) restore-slash? (or (contains? #{"Today" "Yesterday" "Tomorrow" "Current time"} command) (and (not (fn? command-steps)) (not (contains? (set (map first command-steps)) :editor/input)) (not (contains? #{"Date picker" "Template" "Deadline" "Scheduled" "Upload an image"} command))))] (editor-handler/insert-command! id command-steps format {:restore? restore-slash?})))) :class "black"})))) (rum/defc block-commands < rum/reactive [id format] (when (util/react *show-block-commands) (let [matched (util/react *matched-block-commands)] (ui/auto-complete (map first matched) {:on-chosen (fn [chosen] (editor-handler/insert-command! id (get (into {} matched) chosen) format {:last-pattern commands/angle-bracket})) :class "black"})))) (defn- in-sidebar? [el] (not (.contains (.getElementById js/document "left-container") el))) (rum/defc page-search < rum/reactive {:will-unmount (fn [state] (reset! editor-handler/*selected-text nil) state)} [id format] (when (state/sub :editor/show-page-search?) (let [pos (:editor/last-saved-cursor @state/state) input (gdom/getElement id)] (when input (let [current-pos (cursor/pos input) edit-content (or (state/sub [:editor/content id]) "") edit-block (state/sub :editor/block) sidebar? (in-sidebar? input) q (or @editor-handler/*selected-text (when (state/sub :editor/show-page-search-hashtag?) (util/safe-subs edit-content pos current-pos)) (when (> (count edit-content) current-pos) (util/safe-subs edit-content pos current-pos)) "") matched-pages (when-not (string/blank? q) (editor-handler/get-matched-pages q)) matched-pages (cond (contains? (set (map string/lower-case matched-pages)) (string/trim q)) matched-pages (empty? matched-pages) matched-pages :else (->> (cons (first matched-pages) (cons (str "New page: " q) (rest matched-pages))) (remove nil?)))] (ui/auto-complete matched-pages {:on-chosen (page-handler/on-chosen-handler input id q pos format) :on-enter #(page-handler/page-not-exists-handler input id q current-pos) :item-render (fn [page-name chosen?] [:div.preview-trigger-wrapper (block/page-preview-trigger {:children [:div (search/highlight-exact-query page-name q)] :open? chosen? :manual? true :fixed-position? true :tippy-distance 24 :tippy-position (if sidebar? "left" "right")} page-name)]) :empty-div [:div.text-gray-500.text-sm.px-4.py-2 "Search for a page"] :class "black"})))))) (rum/defcs block-search-auto-complete < rum/reactive {:init (fn [state] (assoc state ::result (atom nil))) :did-update (fn [state] (let [result (::result state) [edit-block _ _ q] (:rum/args state)] (p/let [matched-blocks (when-not (string/blank? q) (editor-handler/get-matched-blocks q (:block/uuid edit-block)))] (reset! result matched-blocks))) state)} [state edit-block input id q format] (let [result (rum/react (get state ::result)) chosen-handler (editor-handler/block-on-chosen-handler input id q format) non-exist-block-handler (editor-handler/block-non-exist-handler input)] (when result (ui/auto-complete result {:on-chosen chosen-handler :on-enter non-exist-block-handler :empty-div [:div.text-gray-500.pl-4.pr-4 "Search for a block"] :item-render (fn [{:block/keys [content page uuid] :as item}] (let [page (or (:block/original-name page) (:block/name page)) repo (state/sub :git/current-repo) format (db/get-page-format page)] [:.py-2 (search/block-search-result-item repo uuid format content q :block)])) :class "black"})))) (rum/defcs block-search < rum/reactive {:will-unmount (fn [state] (reset! editor-handler/*selected-text nil) (state/clear-search-result!) state)} [state id format] (when (state/sub :editor/show-block-search?) (let [pos (:editor/last-saved-cursor @state/state) input (gdom/getElement id) [id format] (:rum/args state) current-pos (cursor/pos input) edit-content (state/sub [:editor/content id]) edit-block (state/get-edit-block) q (or @editor-handler/*selected-text (when (> (count edit-content) current-pos) (subs edit-content pos current-pos)))] (when input (block-search-auto-complete edit-block input id q format))))) (rum/defc template-search < rum/reactive {:will-unmount (fn [state] (reset! editor-handler/*selected-text nil) state)} [id format] (when (state/sub :editor/show-template-search?) (let [pos (:editor/last-saved-cursor @state/state) input (gdom/getElement id)] (when input (let [current-pos (cursor/pos input) edit-content (state/sub [:editor/content id]) q (or (when (>= (count edit-content) current-pos) (subs edit-content pos current-pos)) "") matched-templates (editor-handler/get-matched-templates q) non-exist-handler (fn [_state] (state/set-editor-show-template-search! false))] (ui/auto-complete matched-templates {:on-chosen (editor-handler/template-on-chosen-handler id) :on-enter non-exist-handler :empty-div [:div.text-gray-500.px-4.py-2.text-sm "Search for a template"] :item-render (fn [[template _block-db-id]] template) :class "black"})))))) (rum/defc mobile-bar < rum/reactive [parent-state parent-id] (let [vw-state (state/sub :ui/visual-viewport-state) vw-pending? (state/sub :ui/visual-viewport-pending?)] [:div#mobile-editor-toolbar.bg-base-2 {:style {:bottom (if (and vw-state) (- (.-clientHeight js/document.documentElement) (:height vw-state) (:offset-top vw-state)) 0)} :class (util/classnames [{:is-vw-pending (boolean vw-pending?)}])} [:div.flex.justify-around.w-full [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) (editor-handler/indent-outdent true))} (ui/icon "arrow-bar-right" {:style {:fontSize ui/icon-size}})]] [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) (editor-handler/indent-outdent false))} (ui/icon "arrow-bar-left" {:style {:fontSize ui/icon-size}})]] [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) ((editor-handler/move-up-down true)))} (ui/icon "arrow-bar-to-up" {:style {:fontSize ui/icon-size}})]] [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) ((editor-handler/move-up-down false)))} (ui/icon "arrow-bar-to-down" {:style {:fontSize ui/icon-size}})]] [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) (commands/simple-insert! parent-id "\n" {:forward-pos 1}) ;; TODO: should we add this focus step to `simple-insert!`? (when-let [input (gdom/getElement parent-id)] (.focus input)))} (ui/icon "arrow-back" {:style {:fontSize ui/icon-size}})]] [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) (editor-handler/cycle-todo!))} (ui/icon "checkbox" {:style {:fontSize ui/icon-size}})]] [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) (commands/simple-insert! parent-id "[[]]" {:backward-pos 2 :check-fn (fn [_ _ new-pos] (reset! commands/*slash-caret-pos new-pos) (commands/handle-step [:editor/search-page]))}) (when-let [input (gdom/getElement parent-id)] (.focus input)))} (ui/icon "brackets" {:style {:fontSize ui/icon-size}})]] [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) (commands/simple-insert! parent-id "(())" {:backward-pos 2 :check-fn (fn [_ _ new-pos] (reset! commands/*slash-caret-pos new-pos) (commands/handle-step [:editor/search-block]))}) (when-let [input (gdom/getElement parent-id)] (.focus input)))} (ui/icon "parentheses" {:style {:fontSize ui/icon-size}})]] [:div [:button.bottom-action {:on-mouse-down (fn [e] (util/stop e) (commands/simple-insert! parent-id "/" {}) (when-let [input (gdom/getElement parent-id)] (.focus input)))} (ui/icon "command" {:style {:fontSize ui/icon-size}})]]]])) (rum/defcs input < rum/reactive (rum/local {} ::input-value) (mixins/event-mixin (fn [state] (mixins/on-key-down state {;; enter 13 (fn [state e] (let [input-value (get state ::input-value) input-option (get @state/state :editor/show-input)] (when (seq @input-value) ;; no new line input (util/stop e) (let [[_id on-submit] (:rum/args state) {:keys [pos]} @*slash-caret-pos command (:command (first input-option))] (on-submit command @input-value pos)) (reset! input-value nil))))}))) [state id on-submit] (when-let [input-option (state/sub :editor/show-input)] (let [{:keys [pos]} (util/react *slash-caret-pos) input-value (get state ::input-value)] (when (seq input-option) (let [command (:command (first input-option))] [:div.p-2.rounded-md.shadow-lg (for [{:keys [id placeholder type autoFocus] :as input-item} input-option] [:div.my-3 {:key id} [:input.form-input.block.w-full.pl-2.sm:text-sm.sm:leading-5 (merge (cond-> {:key (str "modal-input-" (name id)) :id (str "modal-input-" (name id)) :type (or type "text") :on-change (fn [e] (swap! input-value assoc id (util/evalue e))) :auto-complete (if (util/chrome?) "chrome-off" "off")} placeholder (assoc :placeholder placeholder) autoFocus (assoc :auto-focus true)) (dissoc input-item :id))]]) (ui/button "Submit" :on-click (fn [e] (util/stop e) (on-submit command @input-value pos)))]))))) (rum/defc absolute-modal < rum/static [cp set-default-width? {:keys [top left rect]}] (let [max-height 370 max-width 300 offset-top 24 vw-height js/window.innerHeight vw-width js/window.innerWidth to-max-height (if (and (seq rect) (> vw-height max-height)) (let [delta-height (- vw-height (+ (:top rect) top offset-top))] (if (< delta-height max-height) (- (max (* 2 offset-top) delta-height) 16) max-height)) max-height) right-sidebar? (:ui/sidebar-open? @state/state) editing-key (first (keys (:editor/editing? @state/state))) *el (rum/use-ref nil) _ (rum/use-effect! (fn [] (when-let [^js/HTMLElement cnt (and right-sidebar? editing-key (js/document.querySelector "#main-container"))] (when (.contains cnt (js/document.querySelector (str "#" editing-key))) (let [el (rum/deref *el) ofx (- (.-scrollWidth cnt) (.-clientWidth cnt))] (when (> ofx 0) (set! (.-transform (.-style el)) (str "translateX(-" (+ ofx 20) "px)"))))))) [right-sidebar? editing-key]) ;; FIXME: for translateY layer x-overflow-vw? (when (and (seq rect) (> vw-width max-width)) (let [delta-width (- vw-width (+ (:left rect) left))] (< delta-width (* max-width 0.5))))] [:div.absolute.rounded-md.shadow-lg.absolute-modal {:ref *el :class (if x-overflow-vw? "is-overflow-vw-x" "") :on-mouse-down (fn [e] (.stopPropagation e)) :style (merge {:top (+ top offset-top) :max-height to-max-height :max-width 700 ;; TODO: auto responsive fixed size :width "fit-content" :z-index 11} (when set-default-width? {:width max-width}) (if config/mobile? {:left 0} {:left left}))} cp])) (rum/defc transition-cp < rum/reactive [cp set-default-width? pos] (when pos (when-let [pos (rum/react pos)] (ui/css-transition {:class-names "fade" :timeout {:enter 500 :exit 300}} (absolute-modal cp set-default-width? pos))))) (rum/defc image-uploader < rum/reactive [id format] [:div.image-uploader [:input {:id "upload-file" :type "file" :on-change (fn [e] (let [files (.-files (.-target e))] (editor-handler/upload-asset id files format editor-handler/*asset-uploading? false))) :hidden true}] (when-let [uploading? (util/react editor-handler/*asset-uploading?)] (let [processing (util/react editor-handler/*asset-uploading-process)] (transition-cp [:div.flex.flex-row.align-center.rounded-md.shadow-sm.bg-base-2.px-1.py-1 (ui/loading (util/format "Uploading %s%" (util/format "%2d" processing)))] false *slash-caret-pos)))]) (defn- set-up-key-down! [repo state format] (mixins/on-key-down state {} {:not-matched-handler (editor-handler/keydown-not-matched-handler format)})) (defn- set-up-key-up! [state input input-id search-timeout] (mixins/on-key-up state {} (editor-handler/keyup-handler state input input-id search-timeout))) (def search-timeout (atom nil)) (defn- setup-key-listener! [state] (let [{:keys [id format block]} (get-state) input-id id input (gdom/getElement input-id) repo (:block/repo block)] (set-up-key-down! repo state format) (set-up-key-up! state input input-id search-timeout))) (def starts-with? clojure.string/starts-with?) (defn get-editor-style-class "Get textarea css class according to it's content" [content format] (let [content (if content (str content) "")] ;; as the function is binding to the editor content, optimization is welcome (str (if (or (> (.-length content) 1000) (string/includes? content "\n")) "multiline-block" "uniline-block") " " (case format :markdown (cond (starts-with? content "# ") "h1" (starts-with? content "## ") "h2" (starts-with? content "### ") "h3" (starts-with? content "#### ") "h4" (starts-with? content "##### ") "h5" (starts-with? content "###### ") "h6" (and (starts-with? content "---\n") (.endsWith content "\n---")) "page-properties" :else "normal-block") ;; other formats (cond (and (starts-with? content "---\n") (.endsWith content "\n---")) "page-properties" :else "normal-block"))))) (defn editor-row-height-unchanged? "Check if the row height of editor textarea is changed, which happens when font-size changed" [] ;; FIXME: assuming enter key is the only trigger of the height changing (under markdown editing of headlines) ;; FIXME: looking for an elegant & robust way to track the change of font-size, or wait for our own WYSIWYG text area (let [last-key (state/get-last-key-code)] (and (not= keycode/enter (:key-code last-key)) (not= keycode/enter-code (:code last-key))))) (rum/defc mock-textarea < rum/static {:did-update (fn [state] (when-not (:editor/on-paste? @state/state) (try (editor-handler/handle-last-input) (catch js/Error _e nil))) (state/set-state! :editor/on-paste? false) state)} [content] [:div#mock-text {:style {:width "100%" :height "100%" :position "absolute" :visibility "hidden" :top 0 :left 0}} (let [content (str content "0")] (for [[idx c] (map-indexed vector (string/split content ""))] (if (= c "\n") [:span {:id (str "mock-text_" idx) :key idx} "0" [:br]] [:span {:id (str "mock-text_" idx) :key idx} c])))]) (rum/defc mock-textarea-wrapper < rum/reactive [] (let [content (state/sub-edit-content)] (mock-textarea content))) (defn animated-modal [key component set-default-width? *pos] (when *pos (ui/css-transition {:key key :class-names {:enter "origin-top-left opacity-0 transform scale-95" :enter-done "origin-top-left transition opacity-100 transform scale-100" :exit "origin-top-left transition opacity-0 transform scale-95"} :timeout {:enter 0 :exit 150}} (fn [_] (absolute-modal component set-default-width? *pos))))) (rum/defc modals < rum/reactive "React to atom changes, find and render the correct modal" [id format] (ui/transition-group (cond (and (util/react *show-commands) (not (state/sub :editor/show-page-search?)) (not (state/sub :editor/show-block-search?)) (not (state/sub :editor/show-template-search?)) (not (state/sub :editor/show-input)) (not (state/sub :editor/show-zotero)) (not (state/sub :editor/show-date-picker?))) (animated-modal "commands" (commands id format) true (util/react *slash-caret-pos)) (and (util/react *show-block-commands) @*angle-bracket-caret-pos) (animated-modal "block-commands" (block-commands id format) true (util/react *angle-bracket-caret-pos)) (state/sub :editor/show-page-search?) (animated-modal "page-search" (page-search id format) true (util/react *slash-caret-pos)) (state/sub :editor/show-block-search?) (animated-modal "block-search" (block-search id format) false (util/react *slash-caret-pos)) (state/sub :editor/show-template-search?) (animated-modal "template-search" (template-search id format) true (util/react *slash-caret-pos)) (state/sub :editor/show-date-picker?) (animated-modal "date-picker" (datetime-comp/date-picker id format nil) false (util/react *slash-caret-pos)) (state/sub :editor/show-input) (animated-modal "input" (input id (fn [command m pos] (editor-handler/handle-command-input command id format m))) true (util/react *slash-caret-pos)) (state/sub :editor/show-zotero) (animated-modal "zotero-search" (zotero/zotero-search id) false (util/react *slash-caret-pos)) :else nil))) (rum/defcs box < rum/reactive {:init (fn [state] (assoc state ::heading-level (:heading-level (first (:rum/args state))))) :did-mount (fn [state] (state/set-editor-args! (:rum/args state)) state)} (mixins/event-mixin setup-key-listener!) (shortcut/mixin :shortcut.handler/block-editing-only) lifecycle/lifecycle [state {:keys [on-hide node format block block-parent-id heading-level] :as option} id config] (let [content (state/sub-edit-content) heading-class (get-editor-style-class content format)] [:div.editor-inner {:class (if block "block-editor" "non-block-editor")} (when config/mobile? (mobile-bar state id)) (ui/ls-textarea {:id id :cacheMeasurements (editor-row-height-unchanged?) ;; check when content updated (as the content variable is binded) :default-value (or content "") :minRows (if (state/enable-grammarly?) 2 1) :on-click (editor-handler/editor-on-click! id) :on-change (editor-handler/editor-on-change! block id search-timeout) :on-paste (editor-handler/editor-on-paste! id) :auto-focus false :class heading-class}) (mock-textarea-wrapper) (modals id format) (when format (image-uploader id format))]))