Tinymce html5 placeholder by reading attribute from textarea

Question

For standard textareas I use this plugin to create a placeholder. How can I extend tinymce so that this works in this way also. E.g the default value is read from the textarea attribute then cleared when a user focuses on the iframe. Similar to this for CKEditor: http://alfonsoml.blogspot.com.es/2012/04/placeholder-text-in-ckeditor.html

Accepted Answer

I refactored Tom Duke's code to work on TinyMCE4 with it's jquery plugin

```
$('textarea.tinymce').tinymce({
  script_url: _base + '/assets/js/tinymce/tinymce.min.js',
  theme: "modern",
  setup: function(editor) {
    // Set placeholder
    var placeholder = $('#' + editor.id).attr('placeholder');
    if (typeof placeholder !== 'undefined' && placeholder !== false) {
      var is_default = false;
      editor.on('init', function() {
        // get the current content
        var cont = editor.getContent();

// If its empty and we have a placeholder set the value
        if (cont.length === 0) {
          editor.setContent(placeholder);
          // Get updated content
          cont = placeholder;
        }
        // convert to plain text and compare strings
        is_default = (cont == placeholder);

// nothing to do
        if (!is_default) {
          return;
        }
      })
      .on('focus', function() {
        // replace the default content on focus if the same as original placeholder
        if (is_default) {
          editor.setContent('');
        }
      })
      .on('blur', function() {
        if (editor.getContent().length === 0) {
          editor.setContent(placeholder);
        }
      });
    }
  }
});
```

Tinymce html5 placeholder by reading attribute from textarea

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