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feat(fileuploads): add custom file element for unknown types
Signed-off-by: grnd-alt <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,46 +1,122 @@ | ||
| import { convertToExcalidrawElements } from '@excalidraw/excalidraw' | ||
| import type { ExcalidrawImperativeAPI } from '@excalidraw/excalidraw/types/types' | ||
| import type { | ||
| BinaryFileData, | ||
| DataURL, | ||
| ExcalidrawImperativeAPI, | ||
| } from '@excalidraw/excalidraw/types/types' | ||
| import { Collab } from '../collaboration/collab' | ||
| import type { FileId } from '@excalidraw/excalidraw/types/element/types' | ||
|
|
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| function addCustomFileElement(excalidrawApi: ExcalidrawImperativeAPI, link: string) { | ||
| const elements = excalidrawApi.getSceneElementsIncludingDeleted().slice() | ||
| const newElements = convertToExcalidrawElements([{ | ||
| text: link, | ||
| type: 'text', | ||
| fontSize: 16, | ||
| textAlign: 'left', | ||
| fontFamily: 1, | ||
| x: 0, | ||
| y: 0, | ||
| }]) | ||
| elements.push(newElements[0]) | ||
| excalidrawApi.updateScene({ elements }) | ||
| } | ||
| export class FileHandle { | ||
| private collab: Collab | ||
| private excalidrawApi: ExcalidrawImperativeAPI | ||
| private types: string[] | ||
| constructor( | ||
| excalidrawApi: ExcalidrawImperativeAPI, | ||
| collab: Collab, | ||
| types: string[], | ||
| ) { | ||
| this.collab = collab | ||
| this.excalidrawApi = excalidrawApi | ||
| this.types = types | ||
| const containerRef = document.getElementsByClassName( | ||
| 'excalidraw-container', | ||
| )[0] | ||
| let constructedFile: BinaryFileData = { | ||
| mimeType: 'image/png', | ||
| created: 0o0, | ||
| id: 'placeholder_image' as FileId, | ||
| dataURL: 'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCI+PHBhdGggZD0iTTE0LDJMMjAsOFYyMEEyLDIgMCAwLDEgMTgsMjJINkEyLDIgMCAwLDEgNCwyMFY0QTIsMiAwIDAsMSA2LDJIMTRNMTgsMjBWOUgxM1Y0SDZWMjBIMThNMTIsMTlMOCwxNUgxMC41VjEySDEzLjVWMTVIMTZMMTIsMTlaIiAvPjwvc3ZnPg==' as DataURL, | ||
| } | ||
| this.collab.addFile(constructedFile) | ||
| if (containerRef) { | ||
| containerRef.addEventListener('drop', (ev) => | ||
| this.filesDragEventListener(ev, excalidrawApi), | ||
| ) | ||
| } | ||
| this.excalidrawApi.onPointerDown((tool, state, event) => { | ||
| }) | ||
| } | ||
|
|
||
| // TODO: Implement uploading to nextcloud | ||
| function UploadFileToNextcloud(file: File) { | ||
| return file | ||
| } | ||
| private filesDragEventListener(ev: Event, excalidrawApi: ExcalidrawImperativeAPI) { | ||
| if (ev instanceof DragEvent) { | ||
| for (let file of Array.from(ev.dataTransfer?.files || [])) { | ||
| this.handleFileInsert(file, ev) | ||
| } | ||
| } | ||
| } | ||
|
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| private handleFileInsert(file: File, ev: Event) { | ||
| // if excalidraw can handle it, do nothing | ||
| if (this.types.includes(file.type)) { | ||
| return | ||
| } | ||
| ev.stopImmediatePropagation() | ||
|
|
||
| function filesEventListener(ev: Event, excalidrawApi: ExcalidrawImperativeAPI) { | ||
| if (ev instanceof DragEvent) { | ||
| if (ev.dataTransfer?.files[0]) UploadFileToNextcloud(ev.dataTransfer?.files[0]) | ||
| const types = ['image/webp'] | ||
| if (!types.includes(ev.dataTransfer?.files[0].type || '')) { | ||
| addCustomFileElement(excalidrawApi, ev.dataTransfer?.files[0].name || 'no file name') | ||
| ev.stopImmediatePropagation() | ||
| const fr = new FileReader() | ||
| fr.readAsDataURL(file) | ||
| fr.onload = () => { | ||
| let constructedFile: BinaryFileData = { | ||
| mimeType: 'image/png', | ||
| created: 0o0, | ||
| id: (Math.random() + 1).toString(36).substring(7) as FileId, | ||
| dataURL: fr.result as DataURL, | ||
| } | ||
| this.addCustomFileElement(constructedFile, file.name) | ||
| } | ||
| } | ||
|
|
||
| private addCustomFileElement(constructedFile: BinaryFileData, filename: string) { | ||
| this.collab.addFile(constructedFile) | ||
| const elements = this.excalidrawApi | ||
| .getSceneElementsIncludingDeleted() | ||
| .slice() | ||
| const newElements = convertToExcalidrawElements([ | ||
| { | ||
| type: 'text', | ||
| text: filename, | ||
| customData: { filedata: { constructedFile } }, | ||
| groupIds: ['1'], | ||
| y: 0, | ||
| x: 0, | ||
| }, | ||
| { | ||
| type: 'image', | ||
| fileId: 'placeholder_image' as FileId, | ||
| groupIds: ['1'], | ||
| y: 0, | ||
| x: 0, | ||
| } | ||
| ]) | ||
| elements.push(...newElements) | ||
| this.excalidrawApi.updateScene({ elements }) | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * adds drop eventlistener to excalidraw | ||
| * uploads file to nextcloud server, to be shared with all users | ||
| * if filetype not supported by excalidraw inserts link to file | ||
| * @param {ExcalidrawImperativeAPI} excalidrawApi excalidrawApi | ||
| */ | ||
| export function registerFilesHandler(excalidrawApi: ExcalidrawImperativeAPI) { | ||
| const containerRef = document.getElementsByClassName('excalidraw-container')[0] | ||
| if (containerRef) { | ||
| containerRef.addEventListener('drop', (ev) => filesEventListener(ev, excalidrawApi)) | ||
| } | ||
| * adds drop eventlistener to excalidraw | ||
| * uploads file to nextcloud server, to be shared with all users | ||
| * if filetype not supported by excalidraw inserts link to file | ||
| * @param {ExcalidrawImperativeAPI} excalidrawApi excalidrawApi | ||
| */ | ||
| export function registerFilesHandler( | ||
| excalidrawApi: ExcalidrawImperativeAPI, | ||
| collab: Collab, | ||
| ): FileHandle { | ||
| const types = [ | ||
| 'application/vnd.excalidraw+json', | ||
| 'application/vnd.excalidrawlib+json', | ||
| 'application/json', | ||
| 'image/svg+xml', | ||
| 'image/svg+xml', | ||
| 'image/png', | ||
| 'image/png', | ||
| 'image/jpeg', | ||
| 'image/gif', | ||
| 'image/webp', | ||
| 'image/bmp', | ||
| 'image/x-icon', | ||
| 'application/octet-stream', | ||
| ] | ||
| return new FileHandle(excalidrawApi, collab, types) | ||
| } |