Style removed from schema but still available through menu

1

I’ve removed h1 from my schema. Now any text with the h1 tag is converted to the current style when pasted into the editor. This is great.

However, menu Heading > Level 1 is still present in the menu. I expected that, even though I kind of hoped it would automatically be removed.

What I did not expect is that the Heading > Level 1 menu works normally: it can actually insert h1 tag in my document. What am I missing?

2

There is no h1 as such in the basic schema – there’s a heading with a level attribute. What do you mean when you say you removed h1?

3

What do you mean when you say you removed h1?

const { nodes } = require('prosemirror-schema-basic')
nodes.heading = {
	attrs: {level: {default: 2}},	// 2 instead of 1
	content: "inline<_>*",
	group: "block",
	defining: true,
	parseDOM: [ {tag: "h2", attrs: {level: 2}},	// Removed h1 here
				{tag: "h3", attrs: {level: 3}},
				{tag: "h4", attrs: {level: 4}},
				{tag: "h5", attrs: {level: 5}},
				{tag: "h6", attrs: {level: 6}}],
	toDOM(node) { return ["h" + node.attrs.level, 0] }
}
4

The rational for the above is that I want a document with one h1 title and then no more h1. So my code also contains:

nodes.heading1 = {
	content: "inline<_>*",
	defining: true,
	parseDOM: [{tag: "h1"}],
	toDOM(node) { return ["h1", 0] }
}
nodes.doc.content = 'heading1 block*'
5

That just changes the default level and does nothing to forbid headers with {level: 1} from occurring. The items that example-setup creates for the menu also aren’t that clever – they won’t appear if there isn’t a heading node type, but they won’t try to automatically figure out the minimum heading level.

6

Use a different node type for the H1 headings, that makes it much easier to specify schema constraints.

7

This forbids header with {level:1} because there’s no parseDOM rule for level 1, right? As I said, it works well when doing copy/past…

8

For those landing here, the code for removing h1 completely is:

What do you mean when you say you removed h1?

const { nodes } = require('prosemirror-schema-basic')
nodes.heading = {
	attrs: {level: {default: 2}},	// 2 instead of 1
	content: "inline<_>*",
	group: "block",
	defining: true,
	parseDOM: [ {tag: "h2", attrs: {level: 2}},	// Removed h1 here
				{tag: "h3", attrs: {level: 3}},
				{tag: "h4", attrs: {level: 4}},
				{tag: "h5", attrs: {level: 5}},
				{tag: "h6", attrs: {level: 6}}],
	toDOM(node) { 
		if(node.attrs.level < 2 || node.attrs.level > 6) 
			return	// Prevent h1 generation here
		return ["h" + node.attrs.level, 0] }
}

With the modified toDOM function, the menu bar cannot insert h1 anymore.