How to clear undo/redo history

[jagaxa]

I'm currently using the undo plugin. Is there any way to clear the undo history after I empty the editor using .val("")?

If not, how can I implement something like

    function clear() {
        undoStates = []
    }
    sceditor.plugins.undo.clear = clear;
}(sceditor));

[samclarke]

This should really be part of the undo plugin so I'll leave this issue open.

For now, adding a method to the editor in the undo plugin init should work. Something like:

editor.clearUndo = function () {
  undoStates = [];
  redoPosition = 0;
  storeState();
};

Full file: https://gist.github.com/samclarke/4a53460692a0d8ecc55eadca861dbd57

Can then be called with:

instance.clearUndo();

[huanacaraz]

I suggest also to add support to undo/redo commands (the translations already contains those keywords even if not used..) I did it this way:

1. modify the toolbar icons image - add undo and redo image (to the end...)
2. modify the css - add icon definitions for the buttons: .sceditor-button-undo div{background-position:0 -659px} .sceditor-button-redo div{background-position:0 -675px}
3. add this line to main plugin function: (just after "var base = this;") var utils = sceditor.utils;

4. added this code to the plugin init method: ` var commands = this.commands;

       commands.undo = utils.extend(commands.undo || {}, {
           state: function () {
               return redoPosition < undoStates.length - 1 ? 0 : -1;
           },
           exec: function () {
               base.undo();
           },
           tooltip: 'Undo'
       });
   
       commands.redo = utils.extend(commands.redo || {}, {
           state: function () {
               return redoPosition > 0 ? 0 : -1;
           },
           exec: function () {
               base.redo();
           },
           tooltip: 'Redo'
       });
   
       editor.resetUndo = function() {
           undoStates = [];
           redoPosition = 0;
           storeState();
       }

   `