Refactors most controllers and directives into classes for more organized and maintainable code

app/assets/javascripts/services/preferencesManager.js

@@ -0,0 +1,86 @@
+import { SFPredicate, SFItem } from 'snjs';
+
+export const PREF_TAGS_PANEL_WIDTH         = 'tagsPanelWidth';
+export const PREF_NOTES_PANEL_WIDTH        = 'notesPanelWidth';
+export const PREF_EDITOR_WIDTH             = 'editorWidth';
+export const PREF_EDITOR_LEFT              = 'editorLeft';
+export const PREF_EDITOR_MONOSPACE_ENABLED = 'monospaceFont';
+export const PREF_EDITOR_SPELLCHECK        = 'spellcheck';
+export const PREF_EDITOR_RESIZERS_ENABLED  = 'marginResizersEnabled';
+export const PREF_SORT_NOTES_BY            = 'sortBy';
+export const PREF_SORT_NOTES_REVERSE       = 'sortReverse';
+export const PREF_NOTES_SHOW_ARCHIVED      = 'showArchived';
+export const PREF_NOTES_HIDE_PINNED        = 'hidePinned';
+export const PREF_NOTES_HIDE_NOTE_PREVIEW  = 'hideNotePreview';
+export const PREF_NOTES_HIDE_DATE          = 'hideDate';
+export const PREF_NOTES_HIDE_TAGS          = 'hideTags';
+
+export class PreferencesManager {
+  /* @ngInject */
+  constructor(
+    modelManager,
+    singletonManager,
+    appState,
+    syncManager
+  ) {
+    this.singletonManager = singletonManager;
+    this.modelManager = modelManager;
+    this.syncManager = syncManager;
+    this.appState = appState;
+
+    this.modelManager.addItemSyncObserver(
+      'user-prefs',
+      'SN|UserPreferences',
+      (allItems, validItems, deletedItems, source, sourceKey) => {
+        this.preferencesDidChange();
+      }
+    );
+  }
+
+  load() {
+    const prefsContentType = 'SN|UserPreferences';
+    const contentTypePredicate = new SFPredicate(
+      'content_type',
+       '=',
+       prefsContentType
+     );
+    this.singletonManager.registerSingleton(
+      [contentTypePredicate],
+      (resolvedSingleton) => {
+        this.userPreferences = resolvedSingleton;
+      },
+      (valueCallback) => {
+        // Safe to create. Create and return object.
+        const prefs = new SFItem({content_type: prefsContentType});
+        this.modelManager.addItem(prefs);
+        this.modelManager.setItemDirty(prefs);
+        this.syncManager.sync();
+        valueCallback(prefs);
+      }
+    );
+  }
+
+  preferencesDidChange() {
+    this.appState.setUserPreferences(this.userPreferences);
+  }
+
+  syncUserPreferences() {
+    if(this.userPreferences) {
+      this.modelManager.setItemDirty(this.userPreferences);
+      this.syncManager.sync();
+    }
+  }
+
+  getValue(key, defaultValue) {
+    if(!this.userPreferences) { return defaultValue; }
+    const value = this.userPreferences.getAppDataItem(key);
+    return (value !== undefined && value != null) ? value : defaultValue;
+  }
+
+  setUserPrefValue(key, value, sync) {
+    this.userPreferences.setAppDataItem(key, value);
+    if(sync) {
+      this.syncUserPreferences();
+    }
+  }
+}