Revert "Always show easter eggs"

This reverts commit a767ab114e.

src/addons/settings/settings.jsx

@@ -578,6 +578,19 @@ UnsupportedAddonsComponent.propTypes = {
     }))
 };
 
+const KONAMI = [
+    'arrowup',
+    'arrowup',
+    'arrowdown',
+    'arrowdown',
+    'arrowleft',
+    'arrowright',
+    'arrowleft',
+    'arrowright',
+    'b',
+    'a'
+];
+
 class AddonSettingsComponent extends React.Component {
     constructor (props) {
         super(props);
@@ -593,8 +606,10 @@ class AddonSettingsComponent extends React.Component {
         this.searchBar = null;
         this.state = {
             dirty: false,
+            easterEggs: false,
             search: ''
         };
+        this.konamiProgress = 0;
         for (const [id, manifest] of Object.entries(this.props.addons)) {
             const addonState = {
                 enabled: SettingsStore.getAddonEnabled(id),
@@ -692,6 +707,16 @@ class AddonSettingsComponent extends React.Component {
     }
     handleSearch (e) {
         const value = e.target.value;
+        if (!this.state.easterEggs) {
+            if (
+                value.toLowerCase() === settingsTranslations['tw.addons.settings.tags.easterEgg'].toLowerCase() ||
+                value.toLowerCase() === settingsTranslationsEnglish['tw.addons.settings.tags.easterEgg'].toLowerCase()
+            ) {
+                this.setState({
+                    easterEggs: true
+                });
+            }
+        }
         this.setState({
             search: value
         });
@@ -706,6 +731,22 @@ class AddonSettingsComponent extends React.Component {
         this.searchBar = searchBar;
     }
     handleKeyDown (e) {
+        if (e.key.toLowerCase() !== KONAMI[this.konamiProgress]) {
+            this.konamiProgress = 0;
+        }
+        if (e.key.toLowerCase() === KONAMI[this.konamiProgress]) {
+            this.konamiProgress++;
+            if (this.konamiProgress >= KONAMI.length) {
+                this.setState({
+                    easterEggs: true,
+                    search: settingsTranslations['tw.addons.settings.tags.easterEgg']
+                });
+                this.konamiProgress = 0;
+                this.searchBar.blur();
+                e.preventDefault();
+                return;
+            }
+        }
         const key = e.key;
         if (key.length === 1 && key !== ' ' && e.target === document.body && !(e.ctrlKey || e.metaKey || e.altKey)) {
             this.searchBar.focus();
@@ -766,7 +807,15 @@ class AddonSettingsComponent extends React.Component {
         return true;
     }
     shouldShowAddon (state, addonId, manifest) {
-        return this.isIncludedInSearch(addonId, manifest);
+        if (!this.isIncludedInSearch(addonId, manifest)) {
+            return false;
+        }
+        if (this.state.easterEggs) {
+            // Show everything when easter eggs are visible.
+            return true;
+        }
+        // Otherwise, only show easter eggs when they are enabled.
+        return state.enabled || !(manifest.tags && manifest.tags.includes('easterEgg'));
     }
     render () {
         const filteredAddons = Object.entries(this.props.addons).map(([id, manifest]) => ({