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1 import { CodeMirror } from "./CodeMirror.js"
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2 import { activeElt, rootNode } from "../util/dom.js"
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3 import { off, on } from "../util/event.js"
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4 import { copyObj } from "../util/misc.js"
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5
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6 export function fromTextArea(textarea, options) {
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7 options = options ? copyObj(options) : {}
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8 options.value = textarea.value
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9 if (!options.tabindex && textarea.tabIndex)
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10 options.tabindex = textarea.tabIndex
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11 if (!options.placeholder && textarea.placeholder)
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12 options.placeholder = textarea.placeholder
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13 // Set autofocus to true if this textarea is focused, or if it has
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14 // autofocus and no other element is focused.
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15 if (options.autofocus == null) {
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16 let hasFocus = activeElt(rootNode(textarea))
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17 options.autofocus = hasFocus == textarea ||
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18 textarea.getAttribute("autofocus") != null && hasFocus == document.body
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19 }
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20
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21 function save() {textarea.value = cm.getValue()}
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22
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23 let realSubmit
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24 if (textarea.form) {
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25 on(textarea.form, "submit", save)
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26 // Deplorable hack to make the submit method do the right thing.
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27 if (!options.leaveSubmitMethodAlone) {
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28 let form = textarea.form
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29 realSubmit = form.submit
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30 try {
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31 let wrappedSubmit = form.submit = () => {
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32 save()
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33 form.submit = realSubmit
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34 form.submit()
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35 form.submit = wrappedSubmit
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36 }
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37 } catch(e) {}
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38 }
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39 }
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40
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41 options.finishInit = cm => {
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42 cm.save = save
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43 cm.getTextArea = () => textarea
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44 cm.toTextArea = () => {
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45 cm.toTextArea = isNaN // Prevent this from being ran twice
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46 save()
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47 textarea.parentNode.removeChild(cm.getWrapperElement())
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48 textarea.style.display = ""
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49 if (textarea.form) {
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50 off(textarea.form, "submit", save)
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51 if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
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52 textarea.form.submit = realSubmit
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53 }
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54 }
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55 }
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56
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57 textarea.style.display = "none"
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58 let cm = CodeMirror(node => textarea.parentNode.insertBefore(node, textarea.nextSibling),
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59 options)
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60 return cm
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61 }
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