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| 1 | +import React, {useEffect, useRef, useState} from 'react'; |
| 2 | +import FileSelectDialog from './FileSelectDialog'; |
| 3 | + |
| 4 | + |
| 5 | +interface SelectedFolder { |
| 6 | + id: string; |
| 7 | + name: string; |
| 8 | + last_modified_at: string; |
| 9 | + summary: string; |
| 10 | + meta_data: object; |
| 11 | +} |
| 12 | + |
| 13 | +function parseDataset(dataset: string|object) : SelectedFolder|null { |
| 14 | + const data = typeof dataset === 'string' ? JSON.parse(dataset) : dataset; |
| 15 | + if (data) { |
| 16 | + const { |
| 17 | + id, |
| 18 | + name, |
| 19 | + last_modified_at, |
| 20 | + summary, |
| 21 | + meta_data, |
| 22 | + } = data; |
| 23 | + return { |
| 24 | + id, |
| 25 | + name, |
| 26 | + last_modified_at, |
| 27 | + summary, |
| 28 | + meta_data, |
| 29 | + } as SelectedFolder; |
| 30 | + } |
| 31 | + return null; |
| 32 | +} |
| 33 | + |
| 34 | + |
| 35 | +export default function FinderFolderSelect(props) { |
| 36 | + const shadowRoot = props.container; |
| 37 | + const baseUrl = props['base-url']; |
| 38 | + const styleUrl = props['style-url']; |
| 39 | + const folderIconUrl = props['folder-icon-url']; |
| 40 | + const selectRef = useRef(null); |
| 41 | + const slotRef = useRef(null); |
| 42 | + const dialogRef = useRef(null); |
| 43 | + const [selectedFolder, setSelectedFolder] = useState<SelectedFolder>(null); |
| 44 | + const csrfToken = getCSRFToken(); |
| 45 | + const uuid5Regex = new RegExp(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i); |
| 46 | + |
| 47 | + useEffect(() => { |
| 48 | + // Create a styles element for the shadow DOM |
| 49 | + const link = document.createElement('link'); |
| 50 | + link.href = styleUrl; |
| 51 | + link.media = 'all'; |
| 52 | + link.rel = 'stylesheet'; |
| 53 | + shadowRoot.insertBefore(link, shadowRoot.firstChild); |
| 54 | + const inputElement = slotRef.current.assignedElements()[0]; |
| 55 | + if (inputElement instanceof HTMLInputElement) { |
| 56 | + setSelectedFolder(parseDataset(inputElement.dataset.selected_folder)); |
| 57 | + inputElement.addEventListener('change', valueChanged); |
| 58 | + } |
| 59 | + return () => { |
| 60 | + inputElement.removeEventListener('change', valueChanged); |
| 61 | + }; |
| 62 | + }, []); |
| 63 | + |
| 64 | + useEffect(() => { |
| 65 | + const handleEscape = (event) => { |
| 66 | + if (event.key === 'Escape') { |
| 67 | + selectRef.current.dismissAndClose(); |
| 68 | + } |
| 69 | + }; |
| 70 | + const preventDefault = (event) => { |
| 71 | + event.preventDefault(); |
| 72 | + }; |
| 73 | + window.addEventListener('keydown', handleEscape); |
| 74 | + |
| 75 | + // prevent browser from loading a drag-and-dropped file |
| 76 | + window.addEventListener('dragover', preventDefault, false); |
| 77 | + window.addEventListener('drop', preventDefault, false); |
| 78 | + |
| 79 | + return () => { |
| 80 | + window.removeEventListener('keydown', handleEscape); |
| 81 | + window.removeEventListener('dragover', preventDefault); |
| 82 | + window.removeEventListener('drop', preventDefault); |
| 83 | + } |
| 84 | + }, []); |
| 85 | + |
| 86 | + async function valueChanged(event) { |
| 87 | + const folderId = event.target.value; |
| 88 | + if (!uuid5Regex.test(folderId)) { |
| 89 | + setSelectedFolder(null); |
| 90 | + return; |
| 91 | + } |
| 92 | + const response = await fetch(`${baseUrl}${folderId}/fetch`); |
| 93 | + if (response.ok) { |
| 94 | + const dataset = parseDataset(await response.json()); |
| 95 | + const inputElement = slotRef.current.assignedElements()[0]; |
| 96 | + if (inputElement instanceof HTMLInputElement) { |
| 97 | + inputElement.dataset.selected_file = JSON.stringify(dataset); |
| 98 | + } |
| 99 | + setSelectedFolder(dataset); |
| 100 | + } else { |
| 101 | + console.error(`Failed to fetch folder info for ID ${folderId}:`, response.statusText); |
| 102 | + } |
| 103 | + } |
| 104 | + |
| 105 | + function getCSRFToken() { |
| 106 | + const csrfToken = shadowRoot.host.closest('form')?.querySelector('input[name="csrfmiddlewaretoken"]')?.value; |
| 107 | + if (csrfToken) |
| 108 | + return csrfToken; |
| 109 | + const parts = `; ${document.cookie}`.split('; csrftoken='); |
| 110 | + if (parts.length === 2) |
| 111 | + return parts.pop().split(';').shift(); |
| 112 | + } |
| 113 | + |
| 114 | + function openDialog() { |
| 115 | + dialogRef.current.showModal(); |
| 116 | + selectRef.current.scrollToCurrentFolder(); |
| 117 | + } |
| 118 | + |
| 119 | + function removeFolder() { |
| 120 | + setSelectedFolder(null); |
| 121 | + const inputElement = slotRef.current.assignedElements()[0]; |
| 122 | + if (inputElement instanceof HTMLInputElement) { |
| 123 | + inputElement.value = ''; |
| 124 | + inputElement.dataset.selected_file = null; |
| 125 | + inputElement.checkValidity(); |
| 126 | + } |
| 127 | + } |
| 128 | + |
| 129 | + function selectFolder(folder) { |
| 130 | + if (folder) { |
| 131 | + setSelectedFolder(folder); |
| 132 | + const inputElement = slotRef.current.assignedElements()[0]; |
| 133 | + if (inputElement instanceof HTMLInputElement) { |
| 134 | + inputElement.value = folder.id; |
| 135 | + inputElement.dataset.selected_folder = JSON.stringify(parseDataset(folder)); |
| 136 | + inputElement.checkValidity(); |
| 137 | + } |
| 138 | + } |
| 139 | + } |
| 140 | + |
| 141 | + function renderTimestamp(timestamp) { |
| 142 | + const date = new Date(timestamp); |
| 143 | + return date.toLocaleString(); |
| 144 | + } |
| 145 | + |
| 146 | + return (<> |
| 147 | + <slot ref={slotRef} /> |
| 148 | + <div className="finder-file-select"> |
| 149 | + <figure>{selectedFolder ? <> |
| 150 | + <img src={folderIconUrl} onClick={openDialog} onDragEnter={openDialog} /> |
| 151 | + <figcaption> |
| 152 | + <dl> |
| 153 | + <dt>{gettext("Name")}:</dt> |
| 154 | + <dd>{selectedFolder.name}</dd> |
| 155 | + </dl> |
| 156 | + <dl> |
| 157 | + <dt>{gettext("Details")}:</dt> |
| 158 | + <dd>{selectedFolder.summary}</dd> |
| 159 | + </dl> |
| 160 | + <dl> |
| 161 | + <dt>{gettext("Modified at")}:</dt> |
| 162 | + <dd>{renderTimestamp(selectedFolder.last_modified_at)}</dd> |
| 163 | + </dl> |
| 164 | + <button className="remove-file-button" type="button" onClick={removeFolder}>{gettext("Remove")}</button> |
| 165 | + </figcaption> |
| 166 | + </> : |
| 167 | + <span onClick={openDialog} onDragEnter={openDialog}> |
| 168 | + <p>{gettext("Select Folder")}</p> |
| 169 | + </span> |
| 170 | + }</figure> |
| 171 | + </div> |
| 172 | + <dialog ref={dialogRef}> |
| 173 | + <FileSelectDialog |
| 174 | + ref={selectRef} |
| 175 | + realm={props.realm} |
| 176 | + baseUrl={baseUrl} |
| 177 | + csrfToken={csrfToken} |
| 178 | + selectFolder={selectFolder} |
| 179 | + dialogRef={dialogRef} |
| 180 | + /> |
| 181 | + </dialog> |
| 182 | + </>); |
| 183 | +} |
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