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🐛 Fix unexpected exception on clicking empty area on creating comment
This commit is contained in:
Andrey Antukh
parent
d019afe667
commit
869a412c74
2 changed files with 69 additions and 59 deletions
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@ -90,22 +90,26 @@
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(dom/set-data! "fullname" fullname)
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(obj/set! "textContent" fullname)))
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(defn- current-text-node*
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"Retrieves the text node and the offset that the cursor is positioned on"
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[node anchor-node]
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(when (.contains node anchor-node)
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(let [span-node (if (instance? js/Text anchor-node)
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(dom/get-parent anchor-node)
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anchor-node)
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container (dom/get-parent span-node)]
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(when (= node container)
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span-node))))
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(defn- current-text-node
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"Retrieves the text node and the offset that the cursor is positioned on"
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[node]
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(let [selection (wapi/get-selection)
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range (wapi/get-range selection 0)
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anchor-node (wapi/range-start-container range)
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anchor-offset (wapi/range-start-offset range)]
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(when (and node (.contains node anchor-node))
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(let [span-node
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(if (instance? js/Text anchor-node)
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(dom/get-parent anchor-node)
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anchor-node)
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container (dom/get-parent span-node)]
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(when (= node container)
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[span-node anchor-offset])))))
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([node] (current-text-node node (wapi/get-selection)))
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([node selection]
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(when (and node selection)
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(let [range (wapi/get-range selection 0)
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anchor-node (wapi/range-start-container range)
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anchor-offset (wapi/range-start-offset range)]
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[(current-text-node* node anchor-node) anchor-offset]))))
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(defn- absolute-offset
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[node child offset]
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@ -156,7 +160,8 @@
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mentions-s (mf/use-ctx mentions-context)
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cur-mention (mf/use-var nil)
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prev-selection (mf/use-var nil)
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prev-selection-ref
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(mf/use-ref)
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init-input
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(mf/use-fn
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@ -203,58 +208,59 @@
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handle-select
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(mf/use-fn
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(fn []
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(let [node (mf/ref-val local-ref)
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selection (wapi/get-selection)
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range (wapi/get-range selection 0)
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anchor-node (wapi/range-start-container range)]
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(when (and (= node anchor-node) (.-collapsed range))
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(wapi/set-cursor-after! anchor-node)))
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(when-let [node (mf/ref-val local-ref)]
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(when-let [selection (wapi/get-selection)]
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(let [range (wapi/get-range selection 0)
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anchor-node (wapi/range-start-container range)
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offset (wapi/range-start-offset range)]
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(let [node (mf/ref-val local-ref)
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[span-node offset] (current-text-node node)
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[prev-span prev-offset] @prev-selection]
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(when (and (= node anchor-node) (.-collapsed ^js range))
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(wapi/set-cursor-after! anchor-node))
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(reset! prev-selection #js [span-node offset])
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(when-let [span-node (current-text-node* node anchor-node)]
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(let [[prev-span prev-offset]
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(mf/ref-val prev-selection-ref)
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(when (= (dom/get-data span-node "type") "mention")
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(let [from-offset (absolute-offset node prev-span prev-offset)
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to-offset (absolute-offset node span-node offset)
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node-text
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(subs (dom/get-text span-node) 0 offset)
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[_ prev next]
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(->> node
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(dom/seq-nodes)
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(d/with-prev-next)
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(filter (fn [[elem _ _]] (= elem span-node)))
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(first))]
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current-at-symbol
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(str/last-index-of (subs node-text 0 offset) "@")
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(if (> from-offset to-offset)
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(wapi/set-cursor-after! prev)
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(wapi/set-cursor-before! next))))
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mention-text
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(subs node-text current-at-symbol)
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(when span-node
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(let [node-text (subs (dom/get-text span-node) 0 offset)
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at-symbol-inside-word?
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(and (> current-at-symbol 0)
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(str/word? (str/slice node-text (- current-at-symbol 1) current-at-symbol)))]
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current-at-symbol
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(str/last-index-of (subs node-text 0 offset) "@")
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(mf/set-ref-val! prev-selection-ref #js [span-node offset])
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mention-text
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(subs node-text current-at-symbol)
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(when (= (dom/get-data span-node "type") "mention")
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(let [from-offset (absolute-offset node prev-span prev-offset)
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to-offset (absolute-offset node span-node offset)
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at-symbol-inside-word?
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(and (> current-at-symbol 0)
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(str/word? (str/slice node-text (- current-at-symbol 1) current-at-symbol)))]
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[_ prev next]
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(->> node
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(dom/seq-nodes)
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(d/with-prev-next)
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(filter (fn [[elem _ _]] (= elem span-node)))
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(first))]
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(if (> from-offset to-offset)
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(wapi/set-cursor-after! prev)
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(wapi/set-cursor-before! next))))
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(if (and (not at-symbol-inside-word?)
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(re-matches #"@\w*" mention-text))
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(do
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(reset! cur-mention mention-text)
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(rx/push! mentions-s {:type :display-mentions})
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(let [mention (subs mention-text 1)]
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(when (d/not-empty? mention)
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(rx/push! mentions-s {:type :filter-mentions :data mention}))))
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(do
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(reset! cur-mention nil)
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(rx/push! mentions-s {:type :hide-mentions}))))))))
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(if (and (not at-symbol-inside-word?)
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(re-matches #"@\w*" mention-text))
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(do
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(reset! cur-mention mention-text)
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(rx/push! mentions-s {:type :display-mentions})
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(let [mention (subs mention-text 1)]
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(when (d/not-empty? mention)
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(rx/push! mentions-s {:type :filter-mentions :data mention}))))
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(do
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(reset! cur-mention nil)
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(rx/push! mentions-s {:type :hide-mentions}))))))))))
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handle-focus
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(mf/use-fn
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@ -314,7 +320,8 @@
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handle-insert-at-symbol
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(mf/use-fn
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(fn []
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(let [node (mf/ref-val local-ref) [span-node] (current-text-node node)]
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(let [node (mf/ref-val local-ref)
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[span-node] (current-text-node node)]
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(when span-node
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(let [node-text (dom/get-text span-node)
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at-symbol (if (blank-content? node-text) "@" " @")]
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@ -282,9 +282,12 @@
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(.selectAllChildren selection node))
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(defn get-selection
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"Only returns valid selection"
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[]
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(when-let [document globals/document]
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(.getSelection document)))
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(let [selection (.getSelection document)]
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(when (not= (.-type selection) "None")
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selection))))
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(defn get-anchor-node
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[^js selection]
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