prevent the deletion of certain nodes

[TheoCtla]

I'd like to know if there's a function to prevent certain nodes from being deleted, I've tried it myself but it didn't work. Thanks

[TheoCtla]

Or if you can give me the name of the function that deletes the nodes, so that I can override it.

[jerosoler]

View this:

• https://github.com/jerosoler/Drawflow/issues/10

[TheoCtla]

Thanks, so it'll be good if i override the function "RemoveNodeId" ?

[jerosoler]

Yes, no problem!

[TheoCtla]

I've tried overriding the "RemoveNodeId" function but it doesn't work. I'd like to remove the deletion of two nodes in particular, do you have any advice?

[jerosoler]

For example by class.

    editor.removeNodeId = function(id) {
        const node = editor.getNodeFromId(id.slice(5));
        if(node.class === "nodelete")  {
            return;
        }
        this.removeConnectionNodeId(id);
        let moduleName = this.getModuleFromNodeId(id.slice(5));
        if (this.module === moduleName) {
            this.container.querySelector(`#${id}`).remove();
        }

        delete this.drawflow.drawflow[moduleName].data[id.slice(5)];
        this.dispatch('nodeRemoved', id.slice(5));
    }
    editor.start();
    editor.addNode("item", 1, 1, 700, 400, "nodelete", {}, 'A');
    editor.addNode("item", 1, 1, 900, 700, "item", {}, 'B');
    editor.addNode("item", 1, 1, 500, 550, "nodelete", {}, 'C');