text zoom improvements (#3509)

Task/Issue URL:
https://app.asana.com/0/392891325557410/1206268893832417/f
Tech Design URL:
CC:

**Description**:
Makes it easier to access text zoom and allows per page state.

**Steps to test this PR**:
See test scenarios in Ship Review:
https://app.asana.com/0/0/1208685664909495/f

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**Definition of Done (Internal Only)**:

* [ ] Does this PR satisfy our [Definition of
Done](https://app.asana.com/0/1202500774821704/1207634633537039/f)?

**Copy Testing**:

* [ ] Use of correct apostrophes in new copy, ie `’` rather than `'`

**Orientation Testing**:

* [ ] Portrait
* [ ] Landscape

**Device Testing**:

* [ ] iPhone SE (1st Gen)
* [ ] iPhone 8
* [ ] iPhone X
* [ ] iPhone 14 Pro
* [ ] iPad

**OS Testing**:

* [ ] iOS 15
* [ ] iOS 16
* [ ] iOS 17

**Theme Testing**:

* [ ] Light theme
* [ ] Dark theme

---
###### Internal references:
[Software Engineering
Expectations](https://app.asana.com/0/59792373528535/199064865822552)
[Technical Design
Template](https://app.asana.com/0/59792373528535/184709971311943)

Core/FeatureFlag.swift

@@ -45,6 +45,7 @@ public enum FeatureFlag: String {
     case onboardingAddToDock
     case autofillSurveys
     case autcompleteTabs
+    case textZoom
     case adAttributionReporting
 
     /// https://app.asana.com/0/72649045549333/1208231259093710/f
@@ -111,6 +112,8 @@ extension FeatureFlag: FeatureFlagDescribing {
             return .remoteReleasable(.feature(.autocompleteTabs))
         case .networkProtectionUserTips:
             return .remoteReleasable(.subfeature(NetworkProtectionSubfeature.userTips))
+        case .textZoom:
+            return .remoteReleasable(.feature(.textZoom))
         case .networkProtectionEnforceRoutes:
             return .remoteDevelopment(.subfeature(NetworkProtectionSubfeature.enforceRoutes))
         case .adAttributionReporting:

Core/Pixel.swift

@@ -86,8 +86,9 @@ public struct PixelParameters {
     public static let count = "count"
     public static let source = "source"
 
-    public static let textSizeInitial = "text_size_initial"
-    public static let textSizeUpdated = "text_size_updated"
+    // Text size is the legacy name
+    public static let textZoomInitial = "text_size_initial"
+    public static let textZoomUpdated = "text_size_updated"
 
     public static let canAutoPreviewMIMEType = "can_auto_preview_mime_type"
     public static let mimeType = "mime_type"

Core/PixelEvent.swift

@@ -80,6 +80,7 @@ extension Pixel {
         case browsingMenuCopy
         case browsingMenuPrint
         case browsingMenuFindInPage
+        case browsingMenuZoom
         case browsingMenuDisableProtection
         case browsingMenuEnableProtection
         case browsingMenuReportBrokenSite
@@ -220,8 +221,10 @@ extension Pixel {
         case bookmarkExportSuccess
         case bookmarkExportFailure
 
-        case textSizeSettingsChanged
-
+        case textZoomSettingsChanged
+        case textZoomChangedOnPage
+        case textZoomChangedOnPageDaily
+
         case downloadStarted
         case downloadStartedDueToUnhandledMIMEType
         case downloadTriedToPresentPreviewWithoutTab
@@ -748,7 +751,7 @@ extension Pixel {
         case settingsRecentlyVisitedOff
         case settingsAddressBarSelectorPressed
         case settingsAccessibilityOpen
-        case settingsAccessiblityTextSize
+        case settingsAccessiblityTextZoom
 
         // Web pixels
         case privacyProOfferMonthlyPriceClick
@@ -927,6 +930,7 @@ extension Pixel.Event {
         case .browsingMenuCopy: return "mb_cp"
         case .browsingMenuPrint: return "mb_pr"
         case .browsingMenuFindInPage: return "mb_fp"
+        case .browsingMenuZoom: return "m_menu_page_zoom_taps"
         case .browsingMenuDisableProtection: return "mb_wla"
         case .browsingMenuEnableProtection: return "mb_wlr"
         case .browsingMenuReportBrokenSite: return "mb_rb"
@@ -1063,8 +1067,11 @@ extension Pixel.Event {
         case .bookmarkExportSuccess: return "m_be_a"
         case .bookmarkExportFailure: return "m_be_e"
 
-        case .textSizeSettingsChanged: return "m_text_size_settings_changed"
-
+        // Text size is the legacy name
+        case .textZoomSettingsChanged: return "m_text_size_settings_changed"
+        case .textZoomChangedOnPageDaily: return "m_menu_page_zoom_changed_daily"
+        case .textZoomChangedOnPage: return "m_menu_page_zoom_changed"
+
         case .downloadStarted: return "m_download_started"
         case .downloadStartedDueToUnhandledMIMEType: return "m_download_started_due_to_unhandled_mime_type"
         case .downloadTriedToPresentPreviewWithoutTab: return "m_download_tried_to_present_preview_without_tab"
@@ -1590,7 +1597,9 @@ extension Pixel.Event {
         case .settingsRecentlyVisitedOff: return "m_settings_autocomplete_recently-visited_off"
         case .settingsAddressBarSelectorPressed: return "m_settings_address_bar_selector_pressed"
         case .settingsAccessibilityOpen: return "m_settings_accessibility_open"
-        case .settingsAccessiblityTextSize: return "m_settings_accessiblity_text_size"
+
+        // legacy name is text size
+        case .settingsAccessiblityTextZoom: return "m_settings_accessiblity_text_size"
 
         // Web
         case .privacyProOfferMonthlyPriceClick: return "m_privacy-pro_offer_monthly-price_click"

Core/UserDefaultsPropertyWrapper.swift

@@ -75,7 +75,9 @@ public struct UserDefaultsWrapper<T> {
         case downloadedSurrogatesCount = "com.duckduckgo.app.downloadedSurrogatesCount"
         case downloadedTrackerDataSetCount = "com.duckduckgo.app.downloadedTrackerDataSetCount"
         case downloadedPrivacyConfigurationCount = "com.duckduckgo.app.downloadedPrivacyConfigurationCount"
-        case textSize = "com.duckduckgo.ios.textSize"
+
+        // Text size is the legacy name and this key is still in use
+        case textZoom = "com.duckduckgo.ios.textSize"
 
         case emailWaitlistShouldReceiveNotifications = "com.duckduckgo.ios.showWaitlistNotification"
         case unseenDownloadsAvailable = "com.duckduckgo.app.unseenDownloadsAvailable"
@@ -179,6 +181,9 @@ public struct UserDefaultsWrapper<T> {
         case duckPlayerPixelExperimentLastVideoIDRendered = "com.duckduckgo.ios.duckplayer.pixel.experiment.last.videoID.rendered.v2"
         case duckPlayerPixelExperimentOverride = "com.duckduckgo.ios.duckplayer.pixel.experiment.override.v2"
 
+        // Domain specific text zoom
+        case domainTextZoomStorage = "com.duckduckgo.ios.domainTextZoomStorage"
+
         // TipKit
         case resetTipKitOnNextLaunch = "com.duckduckgo.ios.tipKit.resetOnNextLaunch"
     }