summaryrefslogtreecommitdiffstats
path: root/mobile/android/chrome/geckoview/config.js
blob: 9b1226a3308a1ec1c258eccd52f9739879660696 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";

var Cm = Components.manager;

const VKB_ENTER_KEY = 13; // User press of VKB enter key
const INITIAL_PAGE_DELAY = 500; // Initial pause on program start for scroll alignment
const PREFS_BUFFER_MAX = 30; // Max prefs buffer size for getPrefsBuffer()
const PAGE_SCROLL_TRIGGER = 200; // Triggers additional getPrefsBuffer() on user scroll-to-bottom
const FILTER_CHANGE_TRIGGER = 200; // Delay between responses to filterInput changes
const INNERHTML_VALUE_DELAY = 100; // Delay before providing prefs innerHTML value

var gClipboardHelper = Cc["@mozilla.org/widget/clipboardhelper;1"].getService(
  Ci.nsIClipboardHelper
);

/* ============================== NewPrefDialog ==============================
 *
 * New Preference Dialog Object and methods
 *
 * Implements User Interfaces for creation of a single(new) Preference setting
 *
 */
var NewPrefDialog = {
  _prefsShield: null,

  _newPrefsDialog: null,
  _newPrefItem: null,
  _prefNameInputElt: null,
  _prefTypeSelectElt: null,

  _booleanValue: null,
  _booleanToggle: null,
  _stringValue: null,
  _intValue: null,

  _positiveButton: null,

  get type() {
    return this._prefTypeSelectElt.value;
  },

  set type(aType) {
    this._prefTypeSelectElt.value = aType;
    switch (this._prefTypeSelectElt.value) {
      case "boolean":
        this._prefTypeSelectElt.selectedIndex = 0;
        break;
      case "string":
        this._prefTypeSelectElt.selectedIndex = 1;
        break;
      case "int":
        this._prefTypeSelectElt.selectedIndex = 2;
        break;
    }

    this._newPrefItem.setAttribute("typestyle", aType);
  },

  // Init the NewPrefDialog
  init: function AC_init() {
    this._prefsShield = document.getElementById("prefs-shield");

    this._newPrefsDialog = document.getElementById("new-pref-container");
    this._newPrefItem = document.getElementById("new-pref-item");
    this._prefNameInputElt = document.getElementById("new-pref-name");
    this._prefTypeSelectElt = document.getElementById("new-pref-type");

    this._booleanValue = document.getElementById("new-pref-value-boolean");
    this._stringValue = document.getElementById("new-pref-value-string");
    this._intValue = document.getElementById("new-pref-value-int");

    this._positiveButton = document.getElementById("positive-button");
  },

  // Called to update positive button to display text ("Create"/"Change), and enabled/disabled status
  // As new pref name is initially displayed, re-focused, or modifed during user input
  _updatePositiveButton: function AC_updatePositiveButton(aPrefName) {
    document.l10n.setAttributes(
      this._positiveButton,
      "config-new-pref-create-button"
    );
    this._positiveButton.setAttribute("disabled", true);
    if (aPrefName == "") {
      return;
    }

    // If item already in list, it's being changed, else added
    const item = AboutConfig._list.filter(i => {
      return i.name == aPrefName;
    });
    if (item.length) {
      document.l10n.setAttributes(
        this._positiveButton,
        "config-new-pref-change-button"
      );
    } else {
      this._positiveButton.removeAttribute("disabled");
    }
  },

  // When we want to cancel/hide an existing, or show a new pref dialog
  toggleShowHide: function AC_toggleShowHide() {
    if (this._newPrefsDialog.classList.contains("show")) {
      this.hide();
    } else {
      this._show();
    }
  },

  // When we want to show the new pref dialog / shield the prefs list
  _show: function AC_show() {
    this._newPrefsDialog.classList.add("show");
    this._prefsShield.setAttribute("shown", true);

    // Initial default field values
    this._prefNameInputElt.value = "";
    this._updatePositiveButton(this._prefNameInputElt.value);

    this.type = "boolean";
    this._booleanValue.value = "false";
    this._stringValue.value = "";
    this._intValue.value = "";

    this._prefNameInputElt.focus();

    window.addEventListener("keypress", this.handleKeypress);
  },

  // When we want to cancel/hide the new pref dialog / un-shield the prefs list
  hide: function AC_hide() {
    this._newPrefsDialog.classList.remove("show");
    this._prefsShield.removeAttribute("shown");

    window.removeEventListener("keypress", this.handleKeypress);
  },

  // Watch user key input so we can provide Enter key action, commit input values
  handleKeypress: function AC_handleKeypress(aEvent) {
    // Close our VKB on new pref enter key press
    if (aEvent.keyCode == VKB_ENTER_KEY) {
      aEvent.target.blur();
    }
  },

  // New prefs create dialog only allows creating a non-existing preference, doesn't allow for
  // Changing an existing one on-the-fly, tap existing/displayed line item pref for that
  create: function AC_create() {
    if (this._positiveButton.getAttribute("disabled") == "true") {
      return;
    }

    switch (this.type) {
      case "boolean":
        Services.prefs.setBoolPref(
          this._prefNameInputElt.value,
          !!(this._booleanValue.value == "true")
        );
        break;
      case "string":
        Services.prefs.setCharPref(
          this._prefNameInputElt.value,
          this._stringValue.value
        );
        break;
      case "int":
        Services.prefs.setIntPref(
          this._prefNameInputElt.value,
          this._intValue.value
        );
        break;
    }

    // Ensure pref adds flushed to disk immediately
    Services.prefs.savePrefFile(null);

    this.hide();
  },

  // Display proper positive button text/state on new prefs name input focus
  focusName: function AC_focusName(aEvent) {
    this._updatePositiveButton(aEvent.target.value);
  },

  // Display proper positive button text/state as user changes new prefs name
  updateName: function AC_updateName(aEvent) {
    this._updatePositiveButton(aEvent.target.value);
  },

  // In new prefs dialog, bool prefs are <input type="text">, as they aren't yet tied to an
  // Actual Services.prefs.*etBoolPref()
  toggleBoolValue: function AC_toggleBoolValue() {
    this._booleanValue.value =
      this._booleanValue.value == "true" ? "false" : "true";
  },
};

/* ============================== AboutConfig ==============================
 *
 * Main AboutConfig object and methods
 *
 * Implements User Interfaces for maintenance of a list of Preference settings
 *
 */
var AboutConfig = {
  contextMenuLINode: null,
  filterInput: null,
  _filterPrevInput: null,
  _filterChangeTimer: null,
  _prefsContainer: null,
  _loadingContainer: null,
  _list: null,

  // Init the main AboutConfig dialog
  init: function AC_init() {
    this.filterInput = document.getElementById("filter-input");
    this._prefsContainer = document.getElementById("prefs-container");
    this._loadingContainer = document.getElementById("loading-container");

    const list = Services.prefs.getChildList("");
    this._list = list.sort().map(function AC_getMapPref(aPref) {
      return new Pref(aPref);
    }, this);

    // Support filtering about:config via a ?filter=<string> param
    const match = /[?&]filter=([^&]+)/i.exec(window.location.href);
    if (match) {
      this.filterInput.value = decodeURIComponent(match[1]);
    }

    // Display the current prefs list (retains searchFilter value)
    this.bufferFilterInput();

    // Setup the prefs observers
    Services.prefs.addObserver("", this);
  },

  // Uninit the main AboutConfig dialog
  uninit: function AC_uninit() {
    // Remove the prefs observer
    Services.prefs.removeObserver("", this);
  },

  // Clear the filterInput value, to display the entire list
  clearFilterInput: function AC_clearFilterInput() {
    this.filterInput.value = "";
    this.bufferFilterInput();
  },

  // Buffer down rapid changes in filterInput value from keyboard
  bufferFilterInput: function AC_bufferFilterInput() {
    if (this._filterChangeTimer) {
      clearTimeout(this._filterChangeTimer);
    }

    this._filterChangeTimer = setTimeout(() => {
      this._filterChangeTimer = null;
      // Display updated prefs list when filterInput value settles
      this._displayNewList();
    }, FILTER_CHANGE_TRIGGER);
  },

  // Update displayed list when filterInput value changes
  _displayNewList: function AC_displayNewList() {
    // This survives the search filter value past a page refresh
    this.filterInput.setAttribute("value", this.filterInput.value);

    // Don't start new filter search if same as last
    if (this.filterInput.value == this._filterPrevInput) {
      return;
    }
    this._filterPrevInput = this.filterInput.value;

    // Clear list item selection / context menu, prefs list, get first buffer, set scrolling on
    this.selected = "";
    this._clearPrefsContainer();
    this._addMorePrefsToContainer();
    window.onscroll = this.onScroll.bind(this);

    // Pause for screen to settle, then ensure at top
    setTimeout(() => {
      window.scrollTo(0, 0);
    }, INITIAL_PAGE_DELAY);
  },

  // Clear the displayed preferences list
  _clearPrefsContainer: function AC_clearPrefsContainer() {
    // Quick clear the prefsContainer list
    const empty = this._prefsContainer.cloneNode(false);
    this._prefsContainer.parentNode.replaceChild(empty, this._prefsContainer);
    this._prefsContainer = empty;

    // Quick clear the prefs li.HTML list
    this._list.forEach(function (item) {
      delete item.li;
    });
  },

  // Get a small manageable block of prefs items, and add them to the displayed list
  _addMorePrefsToContainer: function AC_addMorePrefsToContainer() {
    // Create filter regex
    const filterExp = this.filterInput.value
      ? new RegExp(this.filterInput.value, "i")
      : null;

    // Get a new block for the display list
    const prefsBuffer = [];
    for (
      let i = 0;
      i < this._list.length && prefsBuffer.length < PREFS_BUFFER_MAX;
      i++
    ) {
      if (!this._list[i].li && this._list[i].test(filterExp)) {
        prefsBuffer.push(this._list[i]);
      }
    }

    // Add the new block to the displayed list
    for (let i = 0; i < prefsBuffer.length; i++) {
      this._prefsContainer.appendChild(prefsBuffer[i].getOrCreateNewLINode());
    }

    // Determine if anything left to add later by scrolling
    let anotherPrefsBufferRemains = false;
    for (let i = 0; i < this._list.length; i++) {
      if (!this._list[i].li && this._list[i].test(filterExp)) {
        anotherPrefsBufferRemains = true;
        break;
      }
    }

    if (anotherPrefsBufferRemains) {
      // If still more could be displayed, show the throbber
      this._loadingContainer.style.display = "block";
    } else {
      // If no more could be displayed, hide the throbber, and stop noticing scroll events
      this._loadingContainer.style.display = "none";
      window.onscroll = null;
    }
  },

  // If scrolling at the bottom, maybe add some more entries
  onScroll: function AC_onScroll() {
    if (
      this._prefsContainer.scrollHeight -
        (window.pageYOffset + window.innerHeight) <
      PAGE_SCROLL_TRIGGER
    ) {
      if (!this._filterChangeTimer) {
        this._addMorePrefsToContainer();
      }
    }
  },

  // Return currently selected list item node
  get selected() {
    return document.querySelector(".pref-item.selected");
  },

  // Set list item node as selected
  set selected(aSelection) {
    const currentSelection = this.selected;
    if (aSelection == currentSelection) {
      return;
    }

    // Clear any previous selection
    if (currentSelection) {
      currentSelection.classList.remove("selected");
      currentSelection.removeEventListener("keypress", this.handleKeypress);
    }

    // Set any current selection
    if (aSelection) {
      aSelection.classList.add("selected");
      aSelection.addEventListener("keypress", this.handleKeypress);
    }
  },

  // Watch user key input so we can provide Enter key action, commit input values
  handleKeypress: function AC_handleKeypress(aEvent) {
    if (aEvent.keyCode == VKB_ENTER_KEY) {
      aEvent.target.blur();
    }
  },

  // Return the target list item node of an action event
  getLINodeForEvent: function AC_getLINodeForEvent(aEvent) {
    let node = aEvent.target;
    while (node && node.nodeName != "li") {
      node = node.parentNode;
    }

    return node;
  },

  // Return a pref of a list item node
  _getPrefForNode: function AC_getPrefForNode(aNode) {
    const pref = aNode.getAttribute("name");

    return new Pref(pref);
  },

  // When list item name or value are tapped
  selectOrToggleBoolPref: function AC_selectOrToggleBoolPref(aEvent) {
    const node = this.getLINodeForEvent(aEvent);

    // If not already selected, just do so
    if (this.selected != node) {
      this.selected = node;
      return;
    }

    // If already selected, and value is boolean, toggle it
    const pref = this._getPrefForNode(node);
    if (pref.type != Services.prefs.PREF_BOOL) {
      return;
    }

    this.toggleBoolPref(aEvent);
  },

  // When finalizing list input values due to blur
  setIntOrStringPref: function AC_setIntOrStringPref(aEvent) {
    const node = this.getLINodeForEvent(aEvent);

    // Skip if locked
    const pref = this._getPrefForNode(node);
    if (pref.locked) {
      return;
    }

    // Boolean inputs blur to remove focus from "button"
    if (pref.type == Services.prefs.PREF_BOOL) {
      return;
    }

    // String and Int inputs change / commit on blur
    pref.value = aEvent.target.value;
  },

  // When we reset a pref to it's default value (note resetting a user created pref will delete it)
  resetDefaultPref: function AC_resetDefaultPref(aEvent) {
    const node = this.getLINodeForEvent(aEvent);

    // If not already selected, do so
    if (this.selected != node) {
      this.selected = node;
    }

    // Reset will handle any locked condition
    const pref = this._getPrefForNode(node);
    pref.reset();

    // Ensure pref reset flushed to disk immediately
    Services.prefs.savePrefFile(null);
  },

  // When we want to toggle a bool pref
  toggleBoolPref: function AC_toggleBoolPref(aEvent) {
    const node = this.getLINodeForEvent(aEvent);

    // Skip if locked, or not boolean
    const pref = this._getPrefForNode(node);
    if (pref.locked) {
      return;
    }

    // Toggle, and blur to remove field focus
    pref.value = !pref.value;
    aEvent.target.blur();
  },

  // When Int inputs have their Up or Down arrows toggled
  incrOrDecrIntPref: function AC_incrOrDecrIntPref(aEvent, aInt) {
    const node = this.getLINodeForEvent(aEvent);

    // Skip if locked
    const pref = this._getPrefForNode(node);
    if (pref.locked) {
      return;
    }

    pref.value += aInt;
  },

  // Observe preference changes
  observe: function AC_observe(aSubject, aTopic, aPrefName) {
    const pref = new Pref(aPrefName);

    // Ignore uninteresting changes, and avoid "private" preferences
    if (aTopic != "nsPref:changed") {
      return;
    }

    // If pref type invalid, refresh display as user reset/removed an item from the list
    if (pref.type == Services.prefs.PREF_INVALID) {
      document.location.reload();
      return;
    }

    // If pref onscreen, update in place.
    const item = document.querySelector(
      '.pref-item[name="' + CSS.escape(pref.name) + '"]'
    );
    if (item) {
      item.setAttribute("value", pref.value);
      const input = item.querySelector("input");
      input.setAttribute("value", pref.value);
      input.value = pref.value;

      pref.default
        ? item.querySelector(".reset").setAttribute("disabled", "true")
        : item.querySelector(".reset").removeAttribute("disabled");
      return;
    }

    // If pref not already in list, refresh display as it's being added
    const anyWhere = this._list.filter(i => {
      return i.name == pref.name;
    });
    if (!anyWhere.length) {
      document.location.reload();
    }
  },

  // Quick context menu helpers for about:config
  clipboardCopy: function AC_clipboardCopy(aField) {
    const pref = this._getPrefForNode(this.contextMenuLINode);
    if (aField == "name") {
      gClipboardHelper.copyString(pref.name);
    } else {
      gClipboardHelper.copyString(pref.value);
    }
  },
};

/* ============================== Pref ==============================
 *
 * Individual Preference object / methods
 *
 * Defines a Pref object, a document list item tied to Preferences Services
 * And the methods by which they interact.
 *
 */
function Pref(aName) {
  this.name = aName;
}

Pref.prototype = {
  get type() {
    return Services.prefs.getPrefType(this.name);
  },

  get value() {
    switch (this.type) {
      case Services.prefs.PREF_BOOL:
        return Services.prefs.getBoolPref(this.name);
      case Services.prefs.PREF_INT:
        return Services.prefs.getIntPref(this.name);
      case Services.prefs.PREF_STRING:
      default:
        return Services.prefs.getCharPref(this.name);
    }
  },
  set value(aPrefValue) {
    switch (this.type) {
      case Services.prefs.PREF_BOOL:
        Services.prefs.setBoolPref(this.name, aPrefValue);
        break;
      case Services.prefs.PREF_INT:
        Services.prefs.setIntPref(this.name, aPrefValue);
        break;
      case Services.prefs.PREF_STRING:
      default:
        Services.prefs.setCharPref(this.name, aPrefValue);
    }

    // Ensure pref change flushed to disk immediately
    Services.prefs.savePrefFile(null);
  },

  get default() {
    return !Services.prefs.prefHasUserValue(this.name);
  },

  get locked() {
    return Services.prefs.prefIsLocked(this.name);
  },

  reset: function AC_reset() {
    Services.prefs.clearUserPref(this.name);
  },

  test: function AC_test(aValue) {
    return aValue ? aValue.test(this.name) : true;
  },

  // Get existing or create new LI node for the pref
  getOrCreateNewLINode: function AC_getOrCreateNewLINode() {
    if (!this.li) {
      this.li = document.createElement("li");

      this.li.className = "pref-item";
      this.li.setAttribute("name", this.name);

      // Click callback to ensure list item selected even on no-action tap events
      this.li.addEventListener("click", function (aEvent) {
        AboutConfig.selected = AboutConfig.getLINodeForEvent(aEvent);
      });

      // Contextmenu callback to identify selected list item
      this.li.addEventListener("contextmenu", function (aEvent) {
        AboutConfig.contextMenuLINode = AboutConfig.getLINodeForEvent(aEvent);
      });

      this.li.setAttribute("contextmenu", "prefs-context-menu");

      const prefName = document.createElement("div");
      prefName.className = "pref-name";
      prefName.addEventListener("click", function (event) {
        AboutConfig.selectOrToggleBoolPref(event);
      });
      prefName.textContent = this.name;

      this.li.appendChild(prefName);

      const prefItemLine = document.createElement("div");
      prefItemLine.className = "pref-item-line";

      const prefValue = document.createElement("input");
      prefValue.className = "pref-value";
      prefValue.addEventListener("blur", function (event) {
        AboutConfig.setIntOrStringPref(event);
      });
      prefValue.addEventListener("click", function (event) {
        AboutConfig.selectOrToggleBoolPref(event);
      });
      prefValue.value = "";
      prefItemLine.appendChild(prefValue);

      const resetButton = document.createElement("div");
      resetButton.className = "pref-button reset";
      resetButton.addEventListener("click", function (event) {
        AboutConfig.resetDefaultPref(event);
      });
      resetButton.setAttribute("data-l10n-id", "config-pref-reset-button");
      prefItemLine.appendChild(resetButton);

      const toggleButton = document.createElement("div");
      toggleButton.className = "pref-button toggle";
      toggleButton.addEventListener("click", function (event) {
        AboutConfig.toggleBoolPref(event);
      });
      toggleButton.setAttribute("data-l10n-id", "config-pref-toggle-button");
      prefItemLine.appendChild(toggleButton);

      const upButton = document.createElement("div");
      upButton.className = "pref-button up";
      upButton.addEventListener("click", function (event) {
        AboutConfig.incrOrDecrIntPref(event, 1);
      });
      prefItemLine.appendChild(upButton);

      const downButton = document.createElement("div");
      downButton.className = "pref-button down";
      downButton.addEventListener("click", function (event) {
        AboutConfig.incrOrDecrIntPref(event, -1);
      });
      prefItemLine.appendChild(downButton);

      this.li.appendChild(prefItemLine);

      // Delay providing the list item values, until the LI is returned and added to the document
      setTimeout(this._valueSetup.bind(this), INNERHTML_VALUE_DELAY);
    }

    return this.li;
  },

  // Initialize list item object values
  _valueSetup: function AC_valueSetup() {
    this.li.setAttribute("type", this.type);
    this.li.setAttribute("value", this.value);

    const valDiv = this.li.querySelector(".pref-value");
    valDiv.value = this.value;

    switch (this.type) {
      case Services.prefs.PREF_BOOL:
        valDiv.setAttribute("type", "button");
        this.li.querySelector(".up").setAttribute("disabled", true);
        this.li.querySelector(".down").setAttribute("disabled", true);
        break;
      case Services.prefs.PREF_STRING:
        valDiv.setAttribute("type", "text");
        this.li.querySelector(".up").setAttribute("disabled", true);
        this.li.querySelector(".down").setAttribute("disabled", true);
        this.li.querySelector(".toggle").setAttribute("disabled", true);
        break;
      case Services.prefs.PREF_INT:
        valDiv.setAttribute("type", "number");
        this.li.querySelector(".toggle").setAttribute("disabled", true);
        break;
    }

    this.li.setAttribute("default", this.default);
    if (this.default) {
      this.li.querySelector(".reset").setAttribute("disabled", true);
    }

    if (this.locked) {
      valDiv.setAttribute("disabled", this.locked);
      this.li.querySelector(".pref-name").setAttribute("locked", true);
    }
  },
};