Update font sizes in onboarding views.

Signal/src/ViewControllers/HomeView/HomeViewController.m

@@ -488,9 +488,9 @@ NSString *const kArchivedConversationsReuseIdentifier = @"kArchivedConversations
         [onboardingController
             updateWithPhoneNumber:[[OnboardingPhoneNumber alloc] initWithE164:@"+13213214321" userInput:@"3213214321"]];
 
-        //                UIViewController *view = [onboardingController initialViewController];
-        UIViewController *view =
-            [[OnboardingPhoneNumberViewController alloc] initWithOnboardingController:onboardingController];
+        UIViewController *view = [onboardingController initialViewController];
+        //        UIViewController *view =
+        //            [[OnboardingPermissionsViewController alloc] initWithOnboardingController:onboardingController];
         OWSNavigationController *navigationController =
             [[OWSNavigationController alloc] initWithRootViewController:view];
         [self presentViewController:navigationController animated:YES completion:nil];

Signal/src/ViewControllers/Registration/OnboardingBaseViewController.swift

@@ -31,7 +31,7 @@ public class OnboardingBaseViewController: OWSViewController {
         let titleLabel = UILabel()
         titleLabel.text = text
         titleLabel.textColor = Theme.primaryColor
-        titleLabel.font = UIFont.ows_dynamicTypeTitle1.ows_mediumWeight()
+        titleLabel.font = UIFont.ows_dynamicTypeTitle1Clamped.ows_mediumWeight()
         titleLabel.numberOfLines = 0
         titleLabel.lineBreakMode = .byWordWrapping
         titleLabel.textAlignment = .center
@@ -41,7 +41,7 @@ public class OnboardingBaseViewController: OWSViewController {
     func explanationLabel(explanationText: String) -> UILabel {
         let explanationLabel = UILabel()
         explanationLabel.textColor = Theme.secondaryColor
-        explanationLabel.font = UIFont.ows_dynamicTypeCaption1
+        explanationLabel.font = UIFont.ows_dynamicTypeSubheadlineClamped
         explanationLabel.text = explanationText
         explanationLabel.numberOfLines = 0
         explanationLabel.textAlignment = .center
@@ -51,9 +51,11 @@ public class OnboardingBaseViewController: OWSViewController {
 
     func button(title: String, selector: Selector) -> OWSFlatButton {
         // TODO: Make sure this all fits if dynamic font sizes are maxed out.
-        let buttonHeight: CGFloat = 48
+        let font = UIFont.ows_dynamicTypeBodyClamped.ows_mediumWeight()
+        // Button height should be 48pt if the font is 17pt.
+        let buttonHeight = font.pointSize * 48 / 17
         let button = OWSFlatButton.button(title: title,
-                                          font: OWSFlatButton.fontForHeight(buttonHeight),
+                                          font: font,
                                           titleColor: .white,
                                           backgroundColor: .ows_materialBlue,
                                           target: self,
@@ -64,9 +66,11 @@ public class OnboardingBaseViewController: OWSViewController {
 
     func linkButton(title: String, selector: Selector) -> OWSFlatButton {
         // TODO: Make sure this all fits if dynamic font sizes are maxed out.
-        let buttonHeight: CGFloat = 48
+        let font = UIFont.ows_dynamicTypeBodyClamped.ows_mediumWeight()
+        // Button height should be 48pt if the font is 17pt.
+        let buttonHeight = font.pointSize * 48 / 17
         let button = OWSFlatButton.button(title: title,
-                                          font: OWSFlatButton.fontForHeight(buttonHeight),
+                                          font: font,
                                           titleColor: .ows_materialBlue,
                                           backgroundColor: .white,
                                           target: self,

Signal/src/ViewControllers/Registration/OnboardingPermissionsViewController.swift

@@ -23,7 +23,6 @@ public class OnboardingPermissionsViewController: OnboardingBaseViewController {
 
         let explanationLabel = self.explanationLabel(explanationText: NSLocalizedString("ONBOARDING_PERMISSIONS_EXPLANATION",
                                                                                   comment: "Explanation in the 'onboarding permissions' view."))
-        explanationLabel.setCompressionResistanceVerticalLow()
 
         // TODO: Make sure this all fits if dynamic font sizes are maxed out.
         let giveAccessButton = self.button(title: NSLocalizedString("ONBOARDING_PERMISSIONS_ENABLE_PERMISSIONS_BUTTON",

Signal/src/ViewControllers/Registration/OnboardingPhoneNumberViewController.swift

@@ -36,7 +36,7 @@ public class OnboardingPhoneNumberViewController: OnboardingBaseViewController {
         let rowHeight: CGFloat = 40
 
         countryNameLabel.textColor = Theme.primaryColor
-        countryNameLabel.font = UIFont.ows_dynamicTypeBody
+        countryNameLabel.font = UIFont.ows_dynamicTypeBodyClamped
         countryNameLabel.setContentHuggingHorizontalLow()
         countryNameLabel.setCompressionResistanceHorizontalLow()
 
@@ -61,7 +61,7 @@ public class OnboardingPhoneNumberViewController: OnboardingBaseViewController {
         addBottomStroke(countryRow)
 
         callingCodeLabel.textColor = Theme.primaryColor
-        callingCodeLabel.font = UIFont.ows_dynamicTypeBody
+        callingCodeLabel.font = UIFont.ows_dynamicTypeBodyClamped
         callingCodeLabel.setContentHuggingHorizontalHigh()
         callingCodeLabel.setCompressionResistanceHorizontalHigh()
         callingCodeLabel.isUserInteractionEnabled = true
@@ -73,7 +73,7 @@ public class OnboardingPhoneNumberViewController: OnboardingBaseViewController {
         phoneNumberTextField.delegate = self
         phoneNumberTextField.keyboardType = .numberPad
         phoneNumberTextField.textColor = Theme.primaryColor
-        phoneNumberTextField.font = UIFont.ows_dynamicTypeBody
+        phoneNumberTextField.font = UIFont.ows_dynamicTypeBodyClamped
         phoneNumberTextField.setContentHuggingHorizontalLow()
         phoneNumberTextField.setCompressionResistanceHorizontalLow()
 

Signal/src/ViewControllers/Registration/OnboardingSplashViewController.swift

@@ -30,7 +30,7 @@ public class OnboardingSplashViewController: OnboardingBaseViewController {
         explanationLabel.text = NSLocalizedString("ONBOARDING_SPLASH_TERM_AND_PRIVACY_POLICY",
                                                   comment: "Link to the 'terms and privacy policy' in the 'onboarding splash' view.")
         explanationLabel.textColor = .ows_materialBlue
-        explanationLabel.font = UIFont.ows_dynamicTypeCaption1
+        explanationLabel.font = UIFont.ows_dynamicTypeSubheadlineClamped
         explanationLabel.numberOfLines = 0
         explanationLabel.textAlignment = .center
         explanationLabel.lineBreakMode = .byWordWrapping

Signal/translations/en.lproj/Localizable.strings

@@ -1512,7 +1512,7 @@
 "ONBOARDING_CAPTCHA_TITLE" = "We need to verify that you're human";
 
 /* Explanation in the 'onboarding permissions' view. */
-"ONBOARDING_PERMISSIONS_EXPLANATION" = "Allowing Signal to send you notifications and access your contacts makes it easier to communicate with your friends. Your contact information is always transmitted securely.";
+"ONBOARDING_PERMISSIONS_EXPLANATION" = "Your contact information is always transmitted securely.";
 
 /* Label for the 'give access' button in the 'onboarding permissions' view. */
 "ONBOARDING_PERMISSIONS_ENABLE_PERMISSIONS_BUTTON" = "Enable Permissions";

SignalMessaging/categories/UIFont+OWS.h

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2019 Open Whisper Systems. All rights reserved.
 //
 
 #import <UIKit/UIKit.h>
@@ -36,6 +36,18 @@ NS_ASSUME_NONNULL_BEGIN
 @property (class, readonly, nonatomic) UIFont *ows_dynamicTypeCaption1Font;
 @property (class, readonly, nonatomic) UIFont *ows_dynamicTypeCaption2Font;
 
+#pragma mark - Dynamic Type Clamped
+
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeTitle1ClampedFont;
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeTitle2ClampedFont;
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeTitle3ClampedFont;
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeHeadlineClampedFont;
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeBodyClampedFont;
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeSubheadlineClampedFont;
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeFootnoteClampedFont;
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeCaption1ClampedFont;
+@property (class, readonly, nonatomic) UIFont *ows_dynamicTypeCaption2ClampedFont;
+
 #pragma mark - Styles
 
 - (UIFont *)ows_italic;

SignalMessaging/categories/UIFont+OWS.m

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2019 Open Whisper Systems. All rights reserved.
 //
 
 #import "UIFont+OWS.h"
@@ -97,6 +97,84 @@ NS_ASSUME_NONNULL_BEGIN
     return [UIFont preferredFontForTextStyle:UIFontTextStyleCaption2];
 }
 
+#pragma mark - Dynamic Type Clamped
+
++ (UIFont *)preferredFontForTextStyleClamped:(UIFontTextStyle)fontTextStyle
+{
+    static NSDictionary<UIFontTextStyle, NSNumber *> *maxPointSizeMap = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        maxPointSizeMap = @{
+            UIFontTextStyleTitle1 : @(34.0),
+            UIFontTextStyleTitle2 : @(28.0),
+            UIFontTextStyleTitle3 : @(26.0),
+            UIFontTextStyleHeadline : @(23.0),
+            UIFontTextStyleBody : @(23.0),
+            UIFontTextStyleSubheadline : @(21.0),
+            UIFontTextStyleFootnote : @(19.0),
+            UIFontTextStyleCaption1 : @(18.0),
+            UIFontTextStyleCaption2 : @(17.0),
+        };
+    });
+
+    UIFont *font = [UIFont preferredFontForTextStyle:fontTextStyle];
+    NSNumber *_Nullable maxPointSize = maxPointSizeMap[fontTextStyle];
+    if (maxPointSize) {
+        if (maxPointSize.floatValue < font.pointSize) {
+            return [font fontWithSize:maxPointSize.floatValue];
+        }
+    } else {
+        OWSFailDebug(@"Missing max point size for style: %@", fontTextStyle);
+    }
+
+    return font;
+}
+
++ (UIFont *)ows_dynamicTypeTitle1ClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleTitle1];
+}
+
++ (UIFont *)ows_dynamicTypeTitle2ClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleTitle2];
+}
+
++ (UIFont *)ows_dynamicTypeTitle3ClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleTitle3];
+}
+
++ (UIFont *)ows_dynamicTypeHeadlineClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleHeadline];
+}
+
++ (UIFont *)ows_dynamicTypeBodyClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleBody];
+}
+
++ (UIFont *)ows_dynamicTypeSubheadlineClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleSubheadline];
+}
+
++ (UIFont *)ows_dynamicTypeFootnoteClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleFootnote];
+}
+
++ (UIFont *)ows_dynamicTypeCaption1ClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleCaption1];
+}
+
++ (UIFont *)ows_dynamicTypeCaption2ClampedFont
+{
+    return [UIFont preferredFontForTextStyleClamped:UIFontTextStyleCaption2];
+}
+
 #pragma mark - Styles
 
 - (UIFont *)ows_italic