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import { EditorView } from 'prosemirror-view';
import { EditorState } from 'prosemirror-state';
import { keymap } from 'prosemirror-keymap';
import { baseKeymap, toggleMark } from 'prosemirror-commands';
import { schema } from './schema_rts';
import { redo, undo } from 'prosemirror-history';
import { StepMap } from 'prosemirror-transform';
export class FootnoteView {
innerView: any;
outerView: any;
node: any;
dom: any;
getPos: any;
constructor(node: any, view: any, getPos: any) {
// We'll need these later
this.node = node;
this.outerView = view;
this.getPos = getPos;
// The node's representation in the editor (empty, for now)
this.dom = document.createElement('footnote');
this.dom.addEventListener('pointerup', this.toggle, true);
this.dom.addEventListener('mouseup', (e: MouseEvent) => e.stopPropagation(), true);
// These are used when the footnote is selected
this.innerView = null;
}
selectNode() {
this.dom.classList.add('ProseMirror-selectednode');
if (!this.innerView) this.open();
}
deselectNode() {
this.dom.classList.remove('ProseMirror-selectednode');
if (this.innerView) this.close();
}
open() {
// Append a tooltip to the outer node
const tooltip = this.dom.appendChild(document.createElement('div'));
tooltip.className = 'footnote-tooltip';
// And put a sub-ProseMirror into that
this.innerView = new EditorView(tooltip, {
// You can use any node as an editor document
state: EditorState.create({
doc: this.node,
plugins: [
keymap(baseKeymap),
keymap({
'Mod-z': () => undo(this.outerView.state, this.outerView.dispatch),
'Mod-y': () => redo(this.outerView.state, this.outerView.dispatch),
'Mod-b': toggleMark(schema.marks.strong),
}),
// new Plugin({
// view(newView) {
// // TODO -- make this work with RichTextMenu
// // return FormattedTextBox.getToolTip(newView);
// }
// })
],
}),
// This is the magic part
dispatchTransaction: this.dispatchInner.bind(this),
handleDOMEvents: {
pointerdown: ((view: any, e: PointerEvent) => {
// Kludge to prevent issues due to the fact that the whole
// footnote is node-selected (and thus DOM-selected) when
// the parent editor is focused.
e.stopPropagation();
document.addEventListener('pointerup', this.ignore, true);
if (this.outerView.hasFocus()) this.innerView.focus();
}) as any,
},
});
setTimeout(() => this.innerView?.docView.setSelection(0, 0, this.innerView.root, true), 0);
}
ignore = (e: PointerEvent) => {
e.stopPropagation();
document.removeEventListener('pointerup', this.ignore, true);
};
toggle = (e: PointerEvent) => {
if (this.innerView) this.close();
else this.open();
e.stopPropagation();
};
close() {
this.innerView?.destroy();
this.innerView = null;
this.dom.textContent = '';
}
dispatchInner(tr: any) {
const { state, transactions } = this.innerView.state.applyTransaction(tr);
this.innerView.updateState(state);
if (!tr.getMeta('fromOutside')) {
const outerTr = this.outerView.state.tr,
offsetMap = StepMap.offset(this.getPos() + 1);
for (const transaction of transactions) {
for (const step of transaction.steps) {
outerTr.step(step.map(offsetMap));
}
}
if (outerTr.docChanged) this.outerView.dispatch(outerTr);
}
}
update(node: any) {
if (!node.sameMarkup(this.node)) return false;
this.node = node;
if (this.innerView) {
const state = this.innerView.state;
const start = node.content.findDiffStart(state.doc.content);
if (start !== null) {
let { a: endA, b: endB } = node.content.findDiffEnd(state.doc.content);
const overlap = start - Math.min(endA, endB);
if (overlap > 0) {
endA += overlap;
endB += overlap;
}
this.innerView.dispatch(state.tr.replace(start, endB, node.slice(start, endA)).setMeta('fromOutside', true));
}
}
return true;
}
destroy() {
if (this.innerView) this.close();
}
stopEvent(event: any) {
return this.innerView?.dom.contains(event.target);
}
ignoreMutation() {
return true;
}
}
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