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Allow host apps to customize the background of the login prologue #539

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ctarda merged 2 commits into from
Dec 10, 2020
Merged

Allow host apps to customize the background of the login prologue #539

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19b9d69
Add an extra parameter to customise the background color of the login…
ctarda Dec 10, 2020
cce7ad5
If hosts apps provide a custom background for the LoginViewController…
ctarda Dec 10, 2020
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5 changes: 5 additions & 0 deletions WordPressAuthenticator/Authenticator/WordPressAuthenticatorStyles.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -196,6 +196,9 @@ public struct WordPressAuthenticatorUnifiedStyle {
/// Style: Auth Prologue buttons background color
public let prologueButtonsBackgroundColor: UIColor

/// Style: Auth Prologue view background color
public let prologueViewBackgroundColor: UIColor

/// Style: Status bar style. Defaults to `default`.
///
public let statusBarStyle: UIStatusBarStyle
Expand All @@ -216,6 +219,7 @@ public struct WordPressAuthenticatorUnifiedStyle {
textButtonHighlightColor: UIColor,
viewControllerBackgroundColor: UIColor,
prologueButtonsBackgroundColor: UIColor = .clear,
prologueViewBackgroundColor: UIColor? = nil,
statusBarStyle: UIStatusBarStyle = .default,
navBarBackgroundColor: UIColor,
navButtonTextColor: UIColor,
Expand All @@ -228,6 +232,7 @@ public struct WordPressAuthenticatorUnifiedStyle {
self.textButtonHighlightColor = textButtonHighlightColor
self.viewControllerBackgroundColor = viewControllerBackgroundColor
self.prologueButtonsBackgroundColor = prologueButtonsBackgroundColor
self.prologueViewBackgroundColor = prologueViewBackgroundColor ?? viewControllerBackgroundColor
self.statusBarStyle = statusBarStyle
self.navBarBackgroundColor = navBarBackgroundColor
self.navButtonTextColor = navButtonTextColor
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18 changes: 15 additions & 3 deletions WordPressAuthenticator/Signin/LoginPrologueViewController.swift
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Expand Up @@ -266,9 +266,21 @@ class LoginPrologueViewController: LoginViewController {

private func setButtonViewControllerBackground(_ buttonViewController: NUXButtonViewController) {
// Fallback to setting the button background color to clear so the blur effect blurs the Prologue background color.
let backgroundColor = WordPressAuthenticator.shared.unifiedStyle?.prologueButtonsBackgroundColor ?? .clear
buttonViewController.backgroundColor = backgroundColor
buttonBlurEffectView.effect = UIBlurEffect(style: blurEffect)
let buttonsBackgroundColor = WordPressAuthenticator.shared.unifiedStyle?.prologueButtonsBackgroundColor ?? .clear
buttonViewController.backgroundColor = buttonsBackgroundColor

/// If host apps provide a background color for the prologue buttons:
/// 1. Hide the blur effect
/// 2. Set the background color of the view controller to prologueViewBackgroundColor
let prologueViewBackgroundColor = WordPressAuthenticator.shared.unifiedStyle?.prologueViewBackgroundColor ?? .clear

guard prologueViewBackgroundColor == buttonsBackgroundColor else {
buttonBlurEffectView.effect = UIBlurEffect(style: blurEffect)
return
}

buttonBlurEffectView.isHidden = true
view.backgroundColor = prologueViewBackgroundColor
}

// MARK: - Actions
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