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import { action, IReactionDisposer, reaction } from "mobx";
import { Dropdown, DropdownSubmenu, MenuItem, MenuItemSpec, renderGrouped, icons, } from "prosemirror-menu"; //no import css
import { baseKeymap, lift } from "prosemirror-commands";
import { history, redo, undo } from "prosemirror-history";
import { keymap } from "prosemirror-keymap";
import { EditorState, Transaction, NodeSelection, TextSelection } from "prosemirror-state";
import { EditorView } from "prosemirror-view";
import { schema } from "./RichTextSchema";
import { Schema, NodeType, MarkType } from "prosemirror-model";
import React = require("react");
import "./TooltipTextMenu.scss";
const { toggleMark, setBlockType, wrapIn } = require("prosemirror-commands");
import { library } from '@fortawesome/fontawesome-svg-core';
import { wrapInList, bulletList, liftListItem, listItem } from 'prosemirror-schema-list';
import {
faListUl,
} from '@fortawesome/free-solid-svg-icons';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { FieldViewProps } from "../views/nodes/FieldView";
import { throwStatement } from "babel-types";
const SVG = "http://www.w3.org/2000/svg";
//appears above a selection of text in a RichTextBox to give user options such as Bold, Italics, etc.
export class TooltipTextMenu {
private tooltip: HTMLElement;
private num_icons = 0;
private view: EditorView;
private fontStyles: MarkType[];
private fontSizes: MarkType[];
private editorProps: FieldViewProps;
constructor(view: EditorView, editorProps: FieldViewProps) {
this.view = view;
this.editorProps = editorProps;
this.tooltip = document.createElement("div");
this.tooltip.className = "tooltipMenu";
//add the div which is the tooltip
view.dom.parentNode!.appendChild(this.tooltip);
//add additional icons
library.add(faListUl);
//add the buttons to the tooltip
let items = [
{ command: toggleMark(schema.marks.strong), dom: this.icon("B", "strong") },
{ command: toggleMark(schema.marks.em), dom: this.icon("i", "em") },
{ command: toggleMark(schema.marks.underline), dom: this.icon("U", "underline") },
{ command: toggleMark(schema.marks.strikethrough), dom: this.icon("S", "strikethrough") },
{ command: toggleMark(schema.marks.superscript), dom: this.icon("s", "superscript") },
{ command: toggleMark(schema.marks.subscript), dom: this.icon("s", "subscript") },
{ command: wrapInList(schema.nodes.bullet_list), dom: this.icon(":", "bullets") },
{ command: lift, dom: this.icon("<", "lift") },
];
//add menu items
items.forEach(({ dom, command }) => {
this.tooltip.appendChild(dom);
//pointer down handler to activate button effects
dom.addEventListener("pointerdown", e => {
e.preventDefault();
view.focus();
command(view.state, view.dispatch, view);
});
});
//dropdowns
//list of font btns to add
this.fontStyles = [
schema.marks.timesNewRoman,
schema.marks.arial,
schema.marks.georgia,
schema.marks.comicSans,
schema.marks.tahoma,
schema.marks.impact,
];
this.fontSizes = [
schema.marks.p10,
schema.marks.p12,
schema.marks.p16,
schema.marks.p24,
schema.marks.p32,
schema.marks.p48,
schema.marks.p72,
];
this.addFontDropdowns();
this.update(view, undefined);
}
//adds font size and font style dropdowns
addFontDropdowns() {
//filtering function - might be unecessary
let cut = (arr: MenuItem[]) => arr.filter(x => x);
let fontBtns = [
this.dropdownBtn("Times New Roman", "font-family: Times New Roman, Times, serif; width: 120px;", schema.marks.timesNewRoman, this.view, this.changeToMarkInGroup, this.fontStyles),
this.dropdownBtn("Arial", "font-family: Arial, Helvetica, sans-serif; width: 120px;", schema.marks.arial, this.view, this.changeToMarkInGroup, this.fontStyles),
this.dropdownBtn("Georgia", "font-family: Georgia, serif; width: 120px; width: 120px;", schema.marks.georgia, this.view, this.changeToMarkInGroup, this.fontStyles),
this.dropdownBtn("ComicSans", "font-family: Comic Sans MS, cursive, sans-serif; width: 120px;", schema.marks.comicSans, this.view, this.changeToMarkInGroup, this.fontStyles),
this.dropdownBtn("Tahoma", "font-family: Tahoma, Geneva, sans-serif; width: 120px;", schema.marks.tahoma, this.view, this.changeToMarkInGroup, this.fontStyles),
this.dropdownBtn("Impact", "font-family: Impact, Charcoal, sans-serif; width: 120px;", schema.marks.impact, this.view, this.changeToMarkInGroup, this.fontStyles),
];
let fontSizeBtns = [
this.dropdownBtn("10", "width: 50px;", schema.marks.p10, this.view, this.changeToMarkInGroup, this.fontSizes),
this.dropdownBtn("12", "width: 50px;", schema.marks.p12, this.view, this.changeToMarkInGroup, this.fontSizes),
this.dropdownBtn("16", "width: 50px;", schema.marks.p16, this.view, this.changeToMarkInGroup, this.fontSizes),
this.dropdownBtn("24", "width: 50px;", schema.marks.p24, this.view, this.changeToMarkInGroup, this.fontSizes),
this.dropdownBtn("32", "width: 50px;", schema.marks.p32, this.view, this.changeToMarkInGroup, this.fontSizes),
this.dropdownBtn("48", "width: 50px;", schema.marks.p48, this.view, this.changeToMarkInGroup, this.fontSizes),
this.dropdownBtn("72", "width: 50px;", schema.marks.p72, this.view, this.changeToMarkInGroup, this.fontSizes),
];
//dropdown to hold font btns
let dd_fontStyle = new Dropdown(cut(fontBtns), { label: "Font Style", css: "color:white;" }) as MenuItem;
let dd_fontSize = new Dropdown(cut(fontSizeBtns), { label: "Font Size", css: "color:white;" }) as MenuItem;
this.tooltip.appendChild(dd_fontStyle.render(this.view).dom);
this.tooltip.appendChild(dd_fontSize.render(this.view).dom);
}
//for a specific grouping of marks (passed in), remove all and apply the passed-in one to the selected text
changeToMarkInGroup(markType: MarkType, view: EditorView, fontMarks: MarkType[]) {
let { empty, $cursor, ranges } = view.state.selection as TextSelection;
let state = view.state;
let dispatch = view.dispatch;
//remove all other active font marks
fontMarks.forEach((type) => {
if (dispatch) {
if ($cursor) {
if (type.isInSet(state.storedMarks || $cursor.marks())) {
dispatch(state.tr.removeStoredMark(type));
}
} else {
let has = false, tr = state.tr;
for (let i = 0; !has && i < ranges.length; i++) {
let { $from, $to } = ranges[i];
has = state.doc.rangeHasMark($from.pos, $to.pos, type);
}
for (let i of ranges) {
let { $from, $to } = i;
if (has) {
toggleMark(type)(view.state, view.dispatch, view);
}
}
}
}
}); //actually apply font
return toggleMark(markType)(view.state, view.dispatch, view);
}
//makes a button for the drop down
//css is the style you want applied to the button
dropdownBtn(label: string, css: string, markType: MarkType, view: EditorView, changeToMarkInGroup: (markType: MarkType<any>, view: EditorView, groupMarks: MarkType[]) => any, groupMarks: MarkType[]) {
return new MenuItem({
title: "",
label: label,
execEvent: "",
class: "menuicon",
css: css,
enable(state) { return true; },
run() {
changeToMarkInGroup(markType, view, groupMarks);
}
});
}
// Helper function to create menu icons
icon(text: string, name: string) {
let span = document.createElement("span");
span.className = "menuicon " + name;
span.title = name;
span.textContent = text;
span.style.color = "white";
return span;
}
//method for checking whether node can be inserted
canInsert(state: EditorState, nodeType: NodeType<Schema<string, string>>) {
let $from = state.selection.$from;
for (let d = $from.depth; d >= 0; d--) {
let index = $from.index(d);
if ($from.node(d).canReplaceWith(index, index, nodeType)) return true;
}
return false;
}
//adapted this method - use it to check if block has a tag (ie bulleting)
blockActive(type: NodeType<Schema<string, string>>, state: EditorState) {
let attrs = {};
if (state.selection instanceof NodeSelection) {
const sel: NodeSelection = state.selection;
let $from = sel.$from;
let to = sel.to;
let node = sel.node;
if (node) {
return node.hasMarkup(type, attrs);
}
return to <= $from.end() && $from.parent.hasMarkup(type, attrs);
}
}
// Create an icon for a heading at the given level
heading(level: number) {
return {
command: setBlockType(schema.nodes.heading, { level }),
dom: this.icon("H" + level, "heading")
};
}
//updates the tooltip menu when the selection changes
update(view: EditorView, lastState: EditorState | undefined) {
let state = view.state;
// Don't do anything if the document/selection didn't change
if (lastState && lastState.doc.eq(state.doc) &&
lastState.selection.eq(state.selection)) return;
// Hide the tooltip if the selection is empty
if (state.selection.empty) {
this.tooltip.style.display = "none";
return;
}
// Otherwise, reposition it and update its content
this.tooltip.style.display = "";
let { from, to } = state.selection;
let start = view.coordsAtPos(from), end = view.coordsAtPos(to);
// The box in which the tooltip is positioned, to use as base
let box = this.tooltip.offsetParent!.getBoundingClientRect();
// Find a center-ish x position from the selection endpoints (when
// crossing lines, end may be more to the left)
let left = Math.max((start.left + end.left) / 2, start.left + 3);
this.tooltip.style.left = (left - box.left) * this.editorProps.ScreenToLocalTransform().Scale + "px";
let width = Math.abs(start.left - end.left) / 2 * this.editorProps.ScreenToLocalTransform().Scale;
let mid = Math.min(start.left, end.left) + width;
this.tooltip.style.width = 220 + "px";
this.tooltip.style.bottom = (box.bottom - start.top) * this.editorProps.ScreenToLocalTransform().Scale + "px";
}
destroy() { this.tooltip.remove(); }
}
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