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import { action, makeObservable, observable, runInAction } from 'mobx';
import { observer } from 'mobx-react';
import * as React from 'react';
import { lightOrDark, returnFalse } from '../../Utils';
import { Doc, Opt } from '../../fields/Doc';
import { DocUtils, Docs, DocumentOptions } from '../documents/Documents';
import { ImageUtils } from '../util/Import & Export/ImageUtils';
import { Transform } from '../util/Transform';
import { UndoManager, undoBatch } from '../util/UndoManager';
import { ObservableReactComponent } from './ObservableReactComponent';
import './PreviewCursor.scss';
import { FormattedTextBox } from './nodes/formattedText/FormattedTextBox';
@observer
export class PreviewCursor extends ObservableReactComponent<{}> {
static _instance: PreviewCursor;
public static get Instance() {
return PreviewCursor._instance;
}
_onKeyDown?: (e: KeyboardEvent) => void;
_getTransform?: () => Transform;
_addDocument?: (doc: Doc | Doc[]) => boolean;
_addLiveTextDoc?: (doc: Doc) => void;
_nudge?: undefined | ((x: number, y: number) => boolean);
_slowLoadDocuments?: (files: File[] | string, options: DocumentOptions, generatedDocuments: Doc[], text: string, completed: ((doc: Doc[]) => void) | undefined, addDocument: (doc: Doc | Doc[]) => boolean) => Promise<void>;
@observable _clickPoint: number[] = [];
@observable public Visible = false;
public Doc: Opt<Doc>;
constructor(props: any) {
super(props);
makeObservable(this);
PreviewCursor._instance = this;
this._clickPoint = observable([0, 0]);
document.addEventListener('keydown', this.onKeyDown);
document.addEventListener('paste', this.paste, true);
}
paste = async (e: ClipboardEvent) => {
if (this.Visible && e.clipboardData) {
const newPoint = this._getTransform?.().transformPoint(this._clickPoint[0], this._clickPoint[1]);
runInAction(() => (this.Visible = false));
// tests for URL and makes web document
const re: any = /^https?:\/\//g;
const plain = e.clipboardData.getData('text/plain');
if (plain && newPoint) {
// tests for youtube and makes video document
if (plain.indexOf('www.youtube.com/watch') !== -1) {
const batch = UndoManager.StartBatch('youtube upload');
const generatedDocuments: Doc[] = [];
const options = {
title: plain,
_width: 400,
_height: 315,
x: newPoint[0],
y: newPoint[1],
};
this._slowLoadDocuments?.(plain.split('v=')[1].split('&')[0], options, generatedDocuments, '', undefined, this._addDocument ?? returnFalse).then(batch.end);
} else if (re.test(plain)) {
const url = plain;
if (!url.startsWith(window.location.href)) {
undoBatch(() =>
this._addDocument?.(
Docs.Create.WebDocument(url, {
title: url,
_width: 500,
_height: 300,
data_useCors: true,
x: newPoint[0],
y: newPoint[1],
})
)
)();
} else alert('cannot paste dash into itself');
} else if (plain.startsWith('__DashDocId(') || plain.startsWith('__DashCloneId(')) {
const clone = plain.startsWith('__DashCloneId(');
const docids = plain.split(':');
const strs = docids[0].split(','); // hack! docids[0] is the top left of the selection rectangle
const ptx = Number(strs[0].substring((clone ? '__DashCloneId(' : '__DashDocId(').length));
const pty = Number(strs[1].substring(0, strs[1].length - 1));
this._addDocument && Doc.Paste(docids.slice(1), clone, this._addDocument, ptx, pty, newPoint);
e.stopPropagation();
} else {
FormattedTextBox.PasteOnLoad = e;
if (e.clipboardData.getData('dash/pdfAnchor')) e.preventDefault();
UndoManager.RunInBatch(() => this._addLiveTextDoc?.(DocUtils.GetNewTextDoc('', newPoint[0], newPoint[1], 500, undefined, undefined)), 'paste');
}
}
//pasting in images
else if (e.clipboardData.getData('text/html') !== '' && e.clipboardData.getData('text/html').includes('<img src=')) {
const re: any = /<img src="(.*?)"/g;
const arr: any[] = re.exec(e.clipboardData.getData('text/html'));
if (newPoint) {
undoBatch(() => {
const doc = Docs.Create.ImageDocument(arr[1], {
_width: 300,
title: arr[1],
x: newPoint[0],
y: newPoint[1],
});
ImageUtils.ExtractImgInfo(doc);
this._addDocument?.(doc);
})();
}
} else if (e.clipboardData.items.length && newPoint) {
const batch = UndoManager.StartBatch('collection view drop');
const files: File[] = [];
Array.from(e.clipboardData.items).forEach(item => {
const file = item.getAsFile();
file && files.push(file);
});
const generatedDocuments = await DocUtils.uploadFilesToDocs(files, { x: newPoint[0], y: newPoint[1] });
this._addDocument && generatedDocuments.forEach(this._addDocument);
batch.end();
}
}
};
@action
onKeyDown = (e: KeyboardEvent) => {
// Mixing events between React and Native is finicky.
//if not these keys, make a textbox if preview cursor is active!
if (
e.key !== 'Escape' &&
e.key !== 'Backspace' &&
e.key !== 'Delete' &&
e.key !== 'CapsLock' &&
e.key !== 'Alt' &&
e.key !== 'Shift' &&
e.key !== 'Meta' &&
e.key !== 'Control' &&
e.key !== 'Insert' &&
e.key !== 'Home' &&
e.key !== 'End' &&
e.key !== 'PageUp' &&
e.key !== 'PageDown' &&
e.key !== 'NumLock' &&
e.key !== ' ' &&
(e.keyCode < 112 || e.keyCode > 123) && // F1 thru F12 keys
(e.keyCode < 173 || e.keyCode > 183 || e.key === '-') && // mute, volume up/down etc, - is there specifically because its keycode is 173 in Firefox so shouldn't be avoided
!e.key.startsWith('Arrow') &&
!e.defaultPrevented
) {
if ((!e.metaKey && !e.ctrlKey) || (e.keyCode >= 48 && e.keyCode <= 57) || (e.keyCode >= 65 && e.keyCode <= 90)) {
// /^[a-zA-Z0-9$*^%#@+-=_|}{[]"':;?/><.,}]$/.test(e.key)) {
this.Visible && this._onKeyDown?.(e);
((!e.ctrlKey && !e.metaKey) || e.key !== 'v') && (this.Visible = false);
}
} else if (this.Visible) {
if (e.key === 'ArrowRight') {
this._nudge?.(1 * (e.shiftKey ? 2 : 1), 0) && e.stopPropagation();
} else if (e.key === 'ArrowLeft') {
this._nudge?.(-1 * (e.shiftKey ? 2 : 1), 0) && e.stopPropagation();
} else if (e.key === 'ArrowUp') {
this._nudge?.(0, 1 * (e.shiftKey ? 2 : 1)) && e.stopPropagation();
} else if (e.key === 'ArrowDown') {
this._nudge?.(0, -1 * (e.shiftKey ? 2 : 1)) && e.stopPropagation();
}
}
};
//when focus is lost, this will remove the preview cursor
@action onBlur = (): void => {
this.Visible = false;
};
@action
public static Show(
x: number,
y: number,
onKeyDown: (e: KeyboardEvent) => void,
addLiveText: (doc: Doc) => void,
getTransform: () => Transform,
addDocument: undefined | ((doc: Doc | Doc[]) => boolean),
nudge: undefined | ((nudgeX: number, nudgeY: number) => boolean),
slowLoadDocuments: (files: File[] | string, options: DocumentOptions, generatedDocuments: Doc[], text: string, completed: ((doc: Doc[]) => void) | undefined, addDocument: (doc: Doc | Doc[]) => boolean) => Promise<void>
) {
const self = PreviewCursor.Instance;
if (self) {
self._clickPoint = [x, y];
self._onKeyDown = onKeyDown;
self._addLiveTextDoc = addLiveText;
self._getTransform = getTransform;
self._addDocument = addDocument || returnFalse;
self._nudge = nudge;
self._slowLoadDocuments = slowLoadDocuments;
self.Visible = true;
}
}
render() {
return !this._clickPoint || !this.Visible ? null : (
<div className="previewCursor" onBlur={this.onBlur} tabIndex={0} ref={e => e?.focus()} style={{ color: lightOrDark(this.Doc?.backgroundColor ?? 'white'), transform: `translate(${this._clickPoint[0]}px, ${this._clickPoint[1]}px)` }}>
I
</div>
);
}
}
|
