Description
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Javascript functions for creating editing widgets.

The “settings” object must have the following fields:

  * rows – number of rows the text field must have by default
  * text – initial text in the text field
  * hint – the instruction below the editor (like “press Ctrl+Enter to save”)
  * saveAction(text) – a function to be executed on Save or Ctrl+Enter
  * cancelAction – a function to be executed on Cancel or Escape


JS
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// Returns a list of elements.
function bigEditor(settings) {
  var template =
        '<textarea class="big fullwidth editor-area"\
                   autocomplete="off">\
         </textarea>\
         <input type="button" value="Save"\
                class="save" style="right-margin:6px">\
         <input type="button" value="Cancel"\
                class="cancel" style="right-margin:6px">\
         <span class="edit-field-instruction"></span>\
         <a href="/markdown" target="_blank">Markdown</a>';

  var editor = $('<div>').html(template);

  var editorArea = $(editor).find(".editor-area")[0];
  $(editorArea).attr("rows", settings.rows);
  editorArea.value = settings.text;
  editorArea.onkeydown = function (event) {
    // Ctrl+Enter
    if ((event.keyCode == 13 || event.keyCode == 10) &&
        (event.metaKey || event.ctrlKey)) {
      settings.saveAction(editorArea.value);
      return false; }
    // Escape
    if (event.keyCode == 27) {
      settings.cancelAction();
      return false; }
  };

  $(editor).find("[type=button]")[0].onclick = function () {
    settings.saveAction(editorArea.value); };
  $(editor).find("[type=button]")[1].onclick = function () {
    settings.cancelAction(); };

  $(editor).find(".edit-field-instruction").text(settings.hint);

  return editor.contents();
}