moodle/lib/editor/tiny/js/tinymce/plugins/autosave/plugin.js

/**
 * TinyMCE version 6.6.2 (2023-08-09)
 */

(function () {
    'use strict';

    var global$4 = tinymce.util.Tools.resolve('tinymce.PluginManager');

    const hasProto = (v, constructor, predicate) => {
      var _a;
      if (predicate(v, constructor.prototype)) {
        return true;
      } else {
        return ((_a = v.constructor) === null || _a === void 0 ? void 0 : _a.name) === constructor.name;
      }
    };
    const typeOf = x => {
      const t = typeof x;
      if (x === null) {
        return 'null';
      } else if (t === 'object' && Array.isArray(x)) {
        return 'array';
      } else if (t === 'object' && hasProto(x, String, (o, proto) => proto.isPrototypeOf(o))) {
        return 'string';
      } else {
        return t;
      }
    };
    const isType = type => value => typeOf(value) === type;
    const eq = t => a => t === a;
    const isString = isType('string');
    const isUndefined = eq(undefined);

    var global$3 = tinymce.util.Tools.resolve('tinymce.util.Delay');

    var global$2 = tinymce.util.Tools.resolve('tinymce.util.LocalStorage');

    var global$1 = tinymce.util.Tools.resolve('tinymce.util.Tools');

    const fireRestoreDraft = editor => editor.dispatch('RestoreDraft');
    const fireStoreDraft = editor => editor.dispatch('StoreDraft');
    const fireRemoveDraft = editor => editor.dispatch('RemoveDraft');

    const parse = timeString => {
      const multiples = {
        s: 1000,
        m: 60000
      };
      const parsedTime = /^(\d+)([ms]?)$/.exec(timeString);
      return (parsedTime && parsedTime[2] ? multiples[parsedTime[2]] : 1) * parseInt(timeString, 10);
    };

    const option = name => editor => editor.options.get(name);
    const register$1 = editor => {
      const registerOption = editor.options.register;
      const timeProcessor = value => {
        const valid = isString(value);
        if (valid) {
          return {
            value: parse(value),
            valid
          };
        } else {
          return {
            valid: false,
            message: 'Must be a string.'
          };
        }
      };
      registerOption('autosave_ask_before_unload', {
        processor: 'boolean',
        default: true
      });
      registerOption('autosave_prefix', {
        processor: 'string',
        default: 'tinymce-autosave-{path}{query}{hash}-{id}-'
      });
      registerOption('autosave_restore_when_empty', {
        processor: 'boolean',
        default: false
      });
      registerOption('autosave_interval', {
        processor: timeProcessor,
        default: '30s'
      });
      registerOption('autosave_retention', {
        processor: timeProcessor,
        default: '20m'
      });
    };
    const shouldAskBeforeUnload = option('autosave_ask_before_unload');
    const shouldRestoreWhenEmpty = option('autosave_restore_when_empty');
    const getAutoSaveInterval = option('autosave_interval');
    const getAutoSaveRetention = option('autosave_retention');
    const getAutoSavePrefix = editor => {
      const location = document.location;
      return editor.options.get('autosave_prefix').replace(/{path}/g, location.pathname).replace(/{query}/g, location.search).replace(/{hash}/g, location.hash).replace(/{id}/g, editor.id);
    };

    const isEmpty = (editor, html) => {
      if (isUndefined(html)) {
        return editor.dom.isEmpty(editor.getBody());
      } else {
        const trimmedHtml = global$1.trim(html);
        if (trimmedHtml === '') {
          return true;
        } else {
          const fragment = new DOMParser().parseFromString(trimmedHtml, 'text/html');
          return editor.dom.isEmpty(fragment);
        }
      }
    };
    const hasDraft = editor => {
      var _a;
      const time = parseInt((_a = global$2.getItem(getAutoSavePrefix(editor) + 'time')) !== null && _a !== void 0 ? _a : '0', 10) || 0;
      if (new Date().getTime() - time > getAutoSaveRetention(editor)) {
        removeDraft(editor, false);
        return false;
      }
      return true;
    };
    const removeDraft = (editor, fire) => {
      const prefix = getAutoSavePrefix(editor);
      global$2.removeItem(prefix + 'draft');
      global$2.removeItem(prefix + 'time');
      if (fire !== false) {
        fireRemoveDraft(editor);
      }
    };
    const storeDraft = editor => {
      const prefix = getAutoSavePrefix(editor);
      if (!isEmpty(editor) && editor.isDirty()) {
        global$2.setItem(prefix + 'draft', editor.getContent({
          format: 'raw',
          no_events: true
        }));
        global$2.setItem(prefix + 'time', new Date().getTime().toString());
        fireStoreDraft(editor);
      }
    };
    const restoreDraft = editor => {
      var _a;
      const prefix = getAutoSavePrefix(editor);
      if (hasDraft(editor)) {
        editor.setContent((_a = global$2.getItem(prefix + 'draft')) !== null && _a !== void 0 ? _a : '', { format: 'raw' });
        fireRestoreDraft(editor);
      }
    };
    const startStoreDraft = editor => {
      const interval = getAutoSaveInterval(editor);
      global$3.setEditorInterval(editor, () => {
        storeDraft(editor);
      }, interval);
    };
    const restoreLastDraft = editor => {
      editor.undoManager.transact(() => {
        restoreDraft(editor);
        removeDraft(editor);
      });
      editor.focus();
    };

    const get = editor => ({
      hasDraft: () => hasDraft(editor),
      storeDraft: () => storeDraft(editor),
      restoreDraft: () => restoreDraft(editor),
      removeDraft: fire => removeDraft(editor, fire),
      isEmpty: html => isEmpty(editor, html)
    });

    var global = tinymce.util.Tools.resolve('tinymce.EditorManager');

    const setup = editor => {
      editor.editorManager.on('BeforeUnload', e => {
        let msg;
        global$1.each(global.get(), editor => {
          if (editor.plugins.autosave) {
            editor.plugins.autosave.storeDraft();
          }
          if (!msg && editor.isDirty() && shouldAskBeforeUnload(editor)) {
            msg = editor.translate('You have unsaved changes are you sure you want to navigate away?');
          }
        });
        if (msg) {
          e.preventDefault();
          e.returnValue = msg;
        }
      });
    };

    const makeSetupHandler = editor => api => {
      api.setEnabled(hasDraft(editor));
      const editorEventCallback = () => api.setEnabled(hasDraft(editor));
      editor.on('StoreDraft RestoreDraft RemoveDraft', editorEventCallback);
      return () => editor.off('StoreDraft RestoreDraft RemoveDraft', editorEventCallback);
    };
    const register = editor => {
      startStoreDraft(editor);
      const onAction = () => {
        restoreLastDraft(editor);
      };
      editor.ui.registry.addButton('restoredraft', {
        tooltip: 'Restore last draft',
        icon: 'restore-draft',
        onAction,
        onSetup: makeSetupHandler(editor)
      });
      editor.ui.registry.addMenuItem('restoredraft', {
        text: 'Restore last draft',
        icon: 'restore-draft',
        onAction,
        onSetup: makeSetupHandler(editor)
      });
    };

    var Plugin = () => {
      global$4.add('autosave', editor => {
        register$1(editor);
        setup(editor);
        register(editor);
        editor.on('init', () => {
          if (shouldRestoreWhenEmpty(editor) && editor.dom.isEmpty(editor.getBody())) {
            restoreDraft(editor);
          }
        });
        return get(editor);
      });
    };

    Plugin();

})();