dev/js/src/init.js

/*
 * TODO: Create lazy loading of objects including
 * - obj.hint()
 * - obj.alertify()
 * - obj.session()
 * - obj.tutorial()
 * - obj.vc() // toggle
 * - obj.matchCreate() (using webpack)
 * - obj.koral() (show result, parse for errors ...)
 * - obj.alignment() // toggle
 */

define([
  'match',
  'hint',
  'vc',
  'tutorial',
  'lib/domReady',
  'hint/array',
  'vc/array',
  'lib/alertify',
  'session',
  'tagger',
  'selectMenu',
  'api',
  'mailToChiffre',
  'lib/highlight/highlight.pack',
  'util'
], function (matchClass,
	     hintClass,
	     vcClass,
	     tutClass,
	     domReady,
	     hintArray,
	     vcArray,
	     alertifyClass,
	     sessionClass,
	     tagger,
	     selectMenuClass) {

  // Set hint array for hint helper
  KorAP.hintArray = hintArray;

  // Localization values
  var loc = KorAP.Locale;
  loc.VC_allCorpora    = loc.VC_allCorpora    || 'all Corpora';
  loc.VC_oneCollection = loc.VC_oneCollection || 'one Collection';
  loc.TOGGLE_ALIGN     = loc.TOGGLE_ALIGN     || 'toggle Alignment';
  loc.SHOW_KQ          = loc.SHOW_KQ          || 'show KoralQuery';

  // Override KorAP.log
  window.alertify = alertifyClass;
  KorAP.log = function (code, msg) {

    // Use alertify to log errors
    alertifyClass.log(
      (code === 0 ? '' : code + ': ') +
	msg,
      'error',
      10000
    );
  };

  domReady(function (event) {
    var obj = {};

    var session = sessionClass.create('KalamarJS');

    // What should be visible?
    var show = session.get('show') || {};

    /**
     * Release notifications
     */
    if (KorAP.Notifications !== undefined) {
      var n = KorAP.Notifications;
      for (var i = 0; i < n.length; i++) {
	alertifyClass.log(n[i][1], n[i][0], 10000);
      };
    };

    /**
     * Replace Virtual Collection field
     */
    var vcname;
    var input = document.getElementById('collection');
    if (input) {
      input.style.display = 'none';
      vcname = document.createElement('span');
      vcname.setAttribute('id', 'vc-choose');
      vcname.classList.add('select');

      var currentVC = loc.VC_allCorpora;
      if (KorAP.koralQuery !== undefined && KorAP.koralQuery["collection"]) {
	currentVC = loc.VC_oneCollection;
      };

      vcname.appendChild(
	document.createTextNode(
	  document.getElementById('collection-name').value || currentVC
	)
      );

      input.parentNode.insertBefore(vcname, input);
    };

    /**
     * Add actions to match entries
     */
    var inactiveLi = document.querySelectorAll(
      '#search > ol > li:not(.active)'
    );
    var i = 0;

    for (i = 0; i < inactiveLi.length; i++) {
      inactiveLi[i].addEventListener('click', function (e) {
	if (this._match !== undefined)
	  this._match.open();
	else {
	  // lazyLoad
	  matchClass.create(this).open();
	};
	e.halt();
      });
      inactiveLi[i].addEventListener('keydown', function (e) {
	var code = _codeFromEvent(e);
	
	switch (code) {
	case 32:
	  if (this._match !== undefined)
	    this._match.toggle();
	  else {
	    // lazyLoad
	    matchClass.create(this).open();
	  };
	  e.halt();
	  break;
	};
      });
    };

    // Replace QL select menus with KorAP menus
    selectMenuClass.create(
      document.getElementById('ql-field').parentNode
    ).limit(5);

    var result = document.getElementById('resultinfo');
    var resultButton = null;
    if (result != null) {
      resultButton = result.appendChild(document.createElement('div'));
      resultButton.classList.add('result', 'button'); 
    };

    // There is a koralQuery
    if (KorAP.koralQuery !== undefined) {

      if (resultButton !== null) {
	var kq;
      	var toggle = document.createElement('a');
	toggle.setAttribute('title', loc.SHOW_KQ)
	toggle.classList.add('show-kq', 'button');
	toggle.appendChild(document.createElement('span'))
	  .appendChild(document.createTextNode(loc.SHOW_KQ));
	resultButton.appendChild(toggle);

	var showKQ = function () {
	  if (kq === undefined) {
	    kq = document.createElement('div');
	    kq.setAttribute('id', 'koralquery');
	    kq.style.display = 'none';
	    var kqInner = document.createElement('div');
	    kq.appendChild(kqInner);
	    kqInner.innerHTML = JSON.stringify(KorAP.koralQuery, null, '  ');
	    hljs.highlightBlock(kqInner);
	    var sb = document.getElementById('search');
	    sb.insertBefore(kq, sb.firstChild);
	  };

	  if (kq.style.display === 'none') {
	    kq.style.display = 'block';
	    show['kq'] = true;
	  }
	  else {
	    kq.style.display = 'none';
	    delete show['kq'];
	  };
	};

	if (toggle !== undefined) {
      
	  // Show koralquery
	  toggle.addEventListener('click', showKQ);
	};
      };

      if (KorAP.koralQuery["errors"]) {
	var errors = KorAP.koralQuery["errors"];
	for (var i in errors) {

	  // Malformed query
	  if (errors[i][0] === 302 && errors[i][2]) {
	    obj.hint = hintClass.create();
	    obj.hint.alert(errors[i][2], errors[i][1]);
	    break;
	  }

	  // no query
	  else if (errors[i][0] === 301) {
	    obj.hint = hintClass.create();
	    obj.hint.alert(0, errors[i][1]);	    
	  }
	}
      };

      // Session has KQ visibility stored
      if (show["kq"])
	showKQ.apply();
    };


    /**
     * Toggle the alignment (left <=> right)
     */
    // querySelector('div.button.right');
    if (i > 0 && resultButton !== null) {
      var toggle = document.createElement('a');
      toggle.setAttribute('title', loc.TOGGLE_ALIGN);
      // Todo: Reuse old alignment from query
      var cl = toggle.classList;
      cl.add('align', 'right', 'button');
      toggle.addEventListener(
	'click',
	function (e) {
	  var ol = document.querySelector('#search > ol');
	  ol.toggleClass("align-left", "align-right");
	  this.toggleClass("left", "right");
	});
      toggle.appendChild(document.createElement('span'))
	.appendChild(document.createTextNode(loc.TOGGLE_ALIGN));
      resultButton.appendChild(toggle);
    };


    /**
     * Toggle the Virtual Collection builder
     */
    if (vcname) {
      var vc;
      var vcclick = function () {
	var view = document.getElementById('vc-view');

	// The vc is visible
	if (vcname.classList.contains('active')) {
	  view.removeChild(vc.element());
	  vcname.classList.remove('active');
	  delete show['collection'];
	}

	// The vc is not visible
	else {
	  if (vc === undefined)
	    vc = _getCurrentVC(vcClass, vcArray);
	  view.appendChild(vc.element());
	  vcname.classList.add('active');
	  show['collection'] = true;
	};
      };
      vcname.onclick = vcclick;
      if (show['collection']) {
	vcclick.apply();
      };
    };

  
    /**
     * Init Tutorial view
     */
    if (document.getElementById('view-tutorial')) {
      window.tutorial = tutClass.create(
	document.getElementById('view-tutorial'),
	session
      );
      obj.tutorial = window.tutorial;
    }

    // Tutorial is in parent
    else if (window.parent) {
      obj.tutorial = window.parent.tutorial;
    };

    // Initialize queries for document
    if (obj.tutorial) {
      obj.tutorial.initQueries(document);

      // Initialize documentation links
      obj.tutorial.initDocLinks(document);
    };


    /**
     * Add VC creation on submission.
     */
    var form = document.getElementById('searchform');
    if (form !== null) {
      form.addEventListener('submit', function (e) {
	var qf = document.getElementById('q-field');

	// No query was defined
	if (qf.value === undefined || qf.value === '') {
	  qf.focus();
	  e.halt();
	  KorAP.log(700, "No query given");
	  return;
	};

	// Store session information
	session.set("show", show);

	// Set Virtual collection 
	if (vc === undefined) {
	  vc = _getCurrentVC(vcClass, vcArray);
	};

	if (vc !== undefined) {
	  input.value = vc.toQuery();
	}
	else {
	  delete input['value'];
	};
      });
    };

    /**
     * Init hint helper
     * has to be final because of
     * reposition
     */
    // Todo: Pass an element, so this works with
    // tutorial pages as well!
    if (obj.hint === undefined)
      obj.hint = hintClass.create();

    return obj;
  });
});

// Render Virtual collection
function _getCurrentVC (vcClass, vcArray) {
  var vc = vcClass.create(vcArray);
  if (KorAP.koralQuery !== undefined && KorAP.koralQuery["collection"]) {
    vc.fromJson(KorAP.koralQuery["collection"]);
  };
  return vc;
};