799 lines
39 KiB
Swift
799 lines
39 KiB
Swift
//
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// IQKeyboardManager+Position.swift
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// https://github.com/hackiftekhar/IQKeyboardManager
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// Copyright (c) 2013-24 Iftekhar Qurashi.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import UIKit
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import IQKeyboardCore
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// swiftlint:disable file_length
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@available(iOSApplicationExtension, unavailable)
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@MainActor
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@objc public extension IQKeyboardManager {
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private typealias IQLayoutGuide = (top: CGFloat, bottom: CGFloat)
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@MainActor
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private struct AssociatedKeys {
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static var movedDistance: Int = 0
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static var movedDistanceChanged: Int = 0
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static var lastScrollViewConfiguration: Int = 0
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static var startingTextViewConfiguration: Int = 0
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static var activeConfiguration: Int = 0
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}
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/**
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moved distance to the top used to maintain distance between keyboard and textInputView.
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Most of the time this will be a positive value.
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*/
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private(set) var movedDistance: CGFloat {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.movedDistance) as? CGFloat ?? 0.0
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.movedDistance, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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movedDistanceChanged?(movedDistance)
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}
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}
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/**
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Will be called then movedDistance will be changed
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*/
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var movedDistanceChanged: ((CGFloat) -> Void)? {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.movedDistanceChanged) as? ((CGFloat) -> Void)
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.movedDistanceChanged,
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newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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movedDistanceChanged?(movedDistance)
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}
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}
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/** Variable to save lastScrollView that was scrolled. */
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@nonobjc
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internal var lastScrollViewConfiguration: IQScrollViewConfiguration? {
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get {
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return objc_getAssociatedObject(self,
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&AssociatedKeys.lastScrollViewConfiguration) as? IQScrollViewConfiguration
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.lastScrollViewConfiguration,
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newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** used to adjust contentInset of UITextView. */
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@nonobjc
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internal var startingTextViewConfiguration: IQScrollViewConfiguration? {
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get {
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return objc_getAssociatedObject(self,
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&AssociatedKeys.startingTextViewConfiguration) as? IQScrollViewConfiguration
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.startingTextViewConfiguration,
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newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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internal func applicationDidBecomeActive(_ notification: Notification) {
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guard privateIsEnabled(),
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activeConfiguration.keyboardInfo.isVisible,
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activeConfiguration.isReady else {
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return
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}
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adjustPosition()
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}
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/* Adjusting RootViewController's frame according to interface orientation. */
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// swiftlint:disable function_body_length
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internal func adjustPosition() {
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guard UIApplication.shared.applicationState == .active,
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let textInputView: any IQTextInputView = activeConfiguration.textInputView,
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let superview: UIView = textInputView.superview,
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let rootConfiguration = activeConfiguration.rootConfiguration,
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let rootController: UIViewController = rootConfiguration.rootController,
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let window: UIWindow = rootController.view.window else {
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return
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}
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showLog(">>>>> \(#function) started >>>>>", indentation: 1)
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defer {
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showLog("<<<<< \(#function) ended <<<<<", indentation: -1)
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}
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let textInputViewRectInWindow: CGRect = superview.convert(textInputView.frame, to: window)
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let textInputViewRectInRootSuperview: CGRect = superview.convert(textInputView.frame,
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to: rootController.view.superview)
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// Getting RootViewOrigin.
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let rootViewOrigin: CGPoint = rootController.view.frame.origin
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let keyboardDistance: CGFloat = getSpecialTextInputViewDistance(textInputView: textInputView)
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let kbSize: CGSize = Self.getKeyboardSize(keyboardDistance: keyboardDistance,
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keyboardFrame: activeConfiguration.keyboardInfo.endFrame,
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safeAreaInsets: rootConfiguration.beginSafeAreaInsets,
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windowFrame: window.frame)
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let originalKbSize: CGSize = activeConfiguration.keyboardInfo.endFrame.size
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let isScrollableTextInputView: Bool
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if let textInputView: UIScrollView = textInputView as? UITextView {
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isScrollableTextInputView = textInputView.isScrollEnabled
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} else {
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isScrollableTextInputView = false
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}
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let layoutGuide: IQLayoutGuide = Self.getLayoutGuides(rootController: rootController, window: window,
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isScrollableTextInputView: isScrollableTextInputView)
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var superScrollView: UIScrollView?
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var superView: UIScrollView? = (textInputView as UIView).iq.superviewOf(type: UIScrollView.self)
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// Getting UIScrollView whose scrolling is enabled. // (Bug ID: #285)
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while let view: UIScrollView = superView {
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if view.isScrollEnabled, !view.iq.ignoreScrollingAdjustment {
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superScrollView = view
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break
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} else {
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// Getting it's superScrollView. // (Enhancement ID: #21, #24)
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superView = view.iq.superviewOf(type: UIScrollView.self)
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}
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}
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// Move positive = textInputView is hidden.
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// Move negative = textInputView is showing.
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// Calculating move position.
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var moveUp: CGFloat = Self.getMoveUpDistance(keyboardSize: kbSize,
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layoutGuide: layoutGuide,
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textInputViewRectInRootSuperview: textInputViewRectInRootSuperview,
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textInputViewRectInWindow: textInputViewRectInWindow,
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windowFrame: window.frame)
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showLog("Need to move: \(moveUp), will be moving \(moveUp < 0 ? "down" : "up")")
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setupActiveScrollViewConfiguration(superScrollView: superScrollView, textInputView: textInputView)
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// Special case for ScrollView.
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// If we found lastScrollView then setting it's contentOffset to show textInputView.
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if let lastScrollViewConfiguration: IQScrollViewConfiguration = lastScrollViewConfiguration {
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adjustScrollViewContentOffsets(moveUp: &moveUp, textInputView: textInputView,
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lastScrollViewConfiguration: lastScrollViewConfiguration,
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rootSuperview: rootController.view.superview, layoutGuide: layoutGuide,
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textInputViewRectInRootSuperview: textInputViewRectInRootSuperview,
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isScrollableTextInputView: isScrollableTextInputView, window: window,
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kbSize: kbSize, keyboardDistance: keyboardDistance,
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rootBeginSafeAreaInsets: rootConfiguration.beginSafeAreaInsets)
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}
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// Special case for UITextView
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// (Readjusting textInputView.contentInset when textInputView hight is too big to fit on screen)
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// _lastScrollView If not having inside any scrollView, now contentInset manages the full screen textInputView.
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// If is a UITextView type
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if isScrollableTextInputView, let textInputView = textInputView as? UITextView {
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adjustTextInputViewContentInset(window: window, originalKbSize: originalKbSize,
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rootSuperview: rootController.view.superview,
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layoutGuide: layoutGuide,
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textInputView: textInputView)
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}
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adjustRootController(moveUp: moveUp, rootViewOrigin: rootViewOrigin, originalKbSize: originalKbSize,
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rootController: rootController, rootBeginOrigin: rootConfiguration.beginOrigin)
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}
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// swiftlint:enable function_body_length
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internal func restorePosition() {
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// Setting rootViewController frame to it's original position. // (Bug ID: #18)
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guard let configuration: IQRootControllerConfiguration = activeConfiguration.rootConfiguration else {
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return
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}
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showLog(">>>>> \(#function) started >>>>>", indentation: 1)
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defer {
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showLog("<<<<< \(#function) ended <<<<<", indentation: -1)
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}
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activeConfiguration.animate(alongsideTransition: {
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if configuration.hasChanged {
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let classNameString: String = "\(type(of: configuration.rootController.self))"
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self.showLog("Restoring \(classNameString) origin to: \(configuration.beginOrigin)")
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}
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configuration.restore()
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// Animating content if needed (Bug ID: #204)
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if self.layoutIfNeededOnUpdate {
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// Animating content (Bug ID: #160)
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configuration.rootController?.view.setNeedsLayout()
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configuration.rootController?.view.layoutIfNeeded()
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}
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})
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// Restoring the contentOffset of the lastScrollView
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if let lastConfiguration: IQScrollViewConfiguration = lastScrollViewConfiguration {
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let textInputView: (any IQTextInputView)? = activeConfiguration.textInputView
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restoreScrollViewConfigurationIfChanged(configuration: lastConfiguration, textInputView: textInputView)
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activeConfiguration.animate(alongsideTransition: {
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// This is temporary solution. Have to implement the save and restore scrollView state
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self.restoreScrollViewContentOffset(superScrollView: lastConfiguration.scrollView,
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textInputView: textInputView)
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})
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}
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self.movedDistance = 0
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}
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}
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// swiftlint:disable function_parameter_count
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@available(iOSApplicationExtension, unavailable)
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@MainActor
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private extension IQKeyboardManager {
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func getSpecialTextInputViewDistance(textInputView: some IQTextInputView) -> CGFloat {
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// Maintain keyboardDistance
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let specialKeyboardDistance: CGFloat
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if let searchBar: UISearchBar = textInputView.iq.textFieldSearchBar() {
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specialKeyboardDistance = searchBar.iq.distanceFromKeyboard
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} else {
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specialKeyboardDistance = textInputView.iq.distanceFromKeyboard
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}
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if specialKeyboardDistance == UIView.defaultKeyboardDistance {
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return keyboardDistance
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} else {
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return specialKeyboardDistance
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}
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}
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static func getKeyboardSize(keyboardDistance: CGFloat, keyboardFrame: CGRect,
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safeAreaInsets: UIEdgeInsets, windowFrame: CGRect) -> CGSize {
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let kbSize: CGSize
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var kbFrame: CGRect = keyboardFrame
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kbFrame.origin.y -= keyboardDistance
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kbFrame.size.height += keyboardDistance
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kbFrame.origin.y -= safeAreaInsets.bottom
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kbFrame.size.height += safeAreaInsets.bottom
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// (Bug ID: #469) (Bug ID: #381) (Bug ID: #1506)
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// Calculating actual keyboard covered size respect to window,
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// keyboard frame may be different when hardware keyboard is attached
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let intersectRect: CGRect = kbFrame.intersection(windowFrame)
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if intersectRect.isNull {
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kbSize = CGSize(width: kbFrame.size.width, height: 0)
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} else {
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kbSize = intersectRect.size
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}
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return kbSize
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}
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static private func getLayoutGuides(rootController: UIViewController, window: UIWindow,
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isScrollableTextInputView: Bool) -> IQLayoutGuide {
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let navigationBarAreaHeight: CGFloat
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if let navigationController: UINavigationController = rootController.navigationController {
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navigationBarAreaHeight = navigationController.navigationBar.frame.maxY
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} else {
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let statusBarHeight: CGFloat = window.windowScene?.statusBarManager?.statusBarFrame.height ?? 0
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navigationBarAreaHeight = statusBarHeight
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}
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let directionalLayoutMargin: NSDirectionalEdgeInsets = rootController.view.directionalLayoutMargins
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let topLayoutGuide: CGFloat = CGFloat.maximum(navigationBarAreaHeight, directionalLayoutMargin.top)
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// Validation of textInputView for case where there is a tab bar
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// at the bottom or running on iPhone X and textInputView is at the bottom.
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let bottomLayoutGuide: CGFloat = isScrollableTextInputView ? 0 : directionalLayoutMargin.bottom
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return (topLayoutGuide, bottomLayoutGuide)
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}
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static private func getMoveUpDistance(keyboardSize: CGSize,
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layoutGuide: IQLayoutGuide,
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textInputViewRectInRootSuperview: CGRect,
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textInputViewRectInWindow: CGRect,
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windowFrame: CGRect) -> CGFloat {
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// Move positive = textInputView is hidden.
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// Move negative = textInputView is showing.
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// Calculating move position.
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let visibleHeight: CGFloat = windowFrame.height-keyboardSize.height
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let topMovement: CGFloat = textInputViewRectInRootSuperview.minY-layoutGuide.top
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let bottomMovement: CGFloat = textInputViewRectInWindow.maxY - visibleHeight + layoutGuide.bottom
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var moveUp: CGFloat = CGFloat.minimum(topMovement, bottomMovement)
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moveUp = CGFloat(Int(moveUp))
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return moveUp
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}
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func setupActiveScrollViewConfiguration(superScrollView: UIScrollView?, textInputView: some IQTextInputView) {
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// If there was a lastScrollView. // (Bug ID: #34)
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guard let lastConfiguration: IQScrollViewConfiguration = lastScrollViewConfiguration else {
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if let superScrollView: UIScrollView = superScrollView {
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// If there was no lastScrollView and we found a current scrollView. then setting it as lastScrollView.
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let configuration = IQScrollViewConfiguration(scrollView: superScrollView,
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canRestoreContentOffset: true)
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self.lastScrollViewConfiguration = configuration
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showLog("""
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Saving ScrollView New contentInset: \(configuration.startingContentInset)
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and contentOffset: \(configuration.startingContentOffset)
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""")
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}
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return
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}
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// If we can't find current superScrollView, then setting lastScrollView to it's original form.
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if superScrollView == nil {
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restoreScrollViewConfigurationIfChanged(configuration: lastConfiguration,
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textInputView: textInputView)
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self.lastScrollViewConfiguration = nil
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} else if superScrollView != lastConfiguration.scrollView {
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// If both scrollView's are different,
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// then reset lastScrollView to it's original frame and setting current scrollView as last scrollView.
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restoreScrollViewConfigurationIfChanged(configuration: lastConfiguration,
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textInputView: textInputView)
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if let superScrollView = superScrollView {
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let configuration = IQScrollViewConfiguration(scrollView: superScrollView,
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canRestoreContentOffset: true)
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self.lastScrollViewConfiguration = configuration
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showLog("""
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Saving ScrollView New contentInset: \(configuration.startingContentInset)
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and contentOffset: \(configuration.startingContentOffset)
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""")
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} else {
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self.lastScrollViewConfiguration = nil
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}
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}
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// Else the case where superScrollView == lastScrollView means we are on same scrollView
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// after switching to different textInputView. So doing nothing, going ahead
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}
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func restoreScrollViewConfigurationIfChanged(configuration: IQScrollViewConfiguration,
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textInputView: (some IQTextInputView)?) {
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guard configuration.hasChanged else { return }
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if configuration.scrollView.contentInset != configuration.startingContentInset {
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showLog("Restoring contentInset to: \(configuration.startingContentInset)")
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}
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if configuration.scrollView.iq.restoreContentOffset,
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!configuration.scrollView.contentOffset.equalTo(configuration.startingContentOffset) {
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showLog("Restoring contentOffset to: \(configuration.startingContentOffset)")
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}
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activeConfiguration.animate(alongsideTransition: {
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configuration.restore(for: textInputView)
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})
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}
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// swiftlint:disable function_body_length
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private func adjustScrollViewContentOffsets(moveUp: inout CGFloat, textInputView: some IQTextInputView,
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lastScrollViewConfiguration: IQScrollViewConfiguration,
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rootSuperview: UIView?,
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layoutGuide: IQLayoutGuide,
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textInputViewRectInRootSuperview: CGRect,
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isScrollableTextInputView: Bool, window: UIWindow,
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kbSize: CGSize, keyboardDistance: CGFloat,
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rootBeginSafeAreaInsets: UIEdgeInsets) {
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// Saving
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var lastView: UIView = textInputView
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var superScrollView: UIScrollView? = lastScrollViewConfiguration.scrollView
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while let scrollView: UIScrollView = superScrollView {
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var isContinue: Bool = false
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if moveUp > 0 {
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isContinue = moveUp > (-scrollView.contentOffset.y - scrollView.contentInset.top)
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} else if let tableView: UITableView = scrollView.iq.superviewOf(type: UITableView.self) {
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// Special treatment for UITableView due to their cell reusing logic
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isContinue = scrollView.contentOffset.y > 0
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Self.handleTableViewCase(moveUp: &moveUp, isContinue: isContinue, textInputView: textInputView,
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tableView: tableView, rootSuperview: rootSuperview, layoutGuide: layoutGuide)
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} else if let collectionView = scrollView.iq.superviewOf(type: UICollectionView.self) {
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// Special treatment for UICollectionView due to their cell reusing logic
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isContinue = scrollView.contentOffset.y > 0
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Self.handleCollectionViewCase(moveUp: &moveUp, isContinue: isContinue,
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textInputView: textInputView, collectionView: collectionView,
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rootSuperview: rootSuperview, layoutGuide: layoutGuide)
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} else {
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isContinue = textInputViewRectInRootSuperview.minY < layoutGuide.top
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if isContinue {
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moveUp = CGFloat.minimum(0, textInputViewRectInRootSuperview.minY - layoutGuide.top)
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}
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}
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// Looping in upper hierarchy until we don't found any scrollView
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// in it's upper hierarchy till UIWindow object.
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if isContinue {
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var tempScrollView: UIScrollView? = scrollView.iq.superviewOf(type: UIScrollView.self)
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var nextScrollView: UIScrollView?
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while let view: UIScrollView = tempScrollView {
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if view.isScrollEnabled, !view.iq.ignoreScrollingAdjustment {
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nextScrollView = view
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break
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} else {
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tempScrollView = view.iq.superviewOf(type: UIScrollView.self)
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}
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}
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// Getting lastViewRect.
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if let lastViewRect: CGRect = lastView.superview?.convert(lastView.frame, to: scrollView) {
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// Calculating the expected Y offset from move and scrollView's contentOffset.
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let minimumMovement: CGFloat = CGFloat.minimum(scrollView.contentOffset.y, -moveUp)
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var suggestedOffsetY: CGFloat = scrollView.contentOffset.y - minimumMovement
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// Rearranging the expected Y offset according to the view.
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suggestedOffsetY = CGFloat.minimum(suggestedOffsetY, lastViewRect.minY)
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updateSuggestedOffsetYAndMoveUp(suggestedOffsetY: &suggestedOffsetY, moveUp: &moveUp,
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isScrollableTextInputView: isScrollableTextInputView,
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nextScrollView: nextScrollView, textInputView: textInputView,
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window: window, layoutGuide: layoutGuide,
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scrollViewContentOffset: scrollView.contentOffset)
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let newContentOffset: CGPoint = CGPoint(x: scrollView.contentOffset.x, y: suggestedOffsetY)
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if !scrollView.contentOffset.equalTo(newContentOffset) {
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updateScrollViewContentOffset(scrollView: scrollView, newContentOffset: newContentOffset,
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moveUp: moveUp, textInputView: textInputView)
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}
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}
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|
|
// Getting next lastView & superScrollView.
|
|
lastView = scrollView
|
|
superScrollView = nextScrollView
|
|
} else {
|
|
moveUp = 0
|
|
break
|
|
}
|
|
}
|
|
|
|
adjustScrollViewContentInset(lastScrollViewConfiguration: lastScrollViewConfiguration, window: window,
|
|
kbSize: kbSize, keyboardDistance: keyboardDistance,
|
|
rootBeginSafeAreaInsets: rootBeginSafeAreaInsets)
|
|
}
|
|
// swiftlint:enable function_body_length
|
|
|
|
private static func handleTableViewCase(moveUp: inout CGFloat, isContinue: Bool,
|
|
textInputView: some IQTextInputView, tableView: UITableView,
|
|
rootSuperview: UIView?, layoutGuide: IQLayoutGuide) {
|
|
guard isContinue,
|
|
let tableCell: UITableViewCell = textInputView.iq.superviewOf(type: UITableViewCell.self),
|
|
let indexPath: IndexPath = tableView.indexPath(for: tableCell),
|
|
let previousIndexPath: IndexPath = tableView.previousIndexPath(of: indexPath) else { return }
|
|
|
|
let previousCellRect: CGRect = tableView.rectForRow(at: previousIndexPath)
|
|
guard !previousCellRect.isEmpty else { return }
|
|
|
|
let previousCellRectInRootSuperview: CGRect = tableView.convert(previousCellRect,
|
|
to: rootSuperview)
|
|
|
|
moveUp = CGFloat.minimum(0, previousCellRectInRootSuperview.maxY - layoutGuide.top)
|
|
}
|
|
|
|
private static func handleCollectionViewCase(moveUp: inout CGFloat, isContinue: Bool,
|
|
textInputView: some IQTextInputView, collectionView: UICollectionView,
|
|
rootSuperview: UIView?,
|
|
layoutGuide: IQLayoutGuide) {
|
|
guard isContinue,
|
|
let collectionCell = textInputView.iq.superviewOf(type: UICollectionViewCell.self),
|
|
let indexPath: IndexPath = collectionView.indexPath(for: collectionCell),
|
|
let previousIndexPath: IndexPath = collectionView.previousIndexPath(of: indexPath),
|
|
let attributes = collectionView.layoutAttributesForItem(at: previousIndexPath) else { return }
|
|
|
|
let previousCellRect: CGRect = attributes.frame
|
|
guard !previousCellRect.isEmpty else { return }
|
|
let previousCellRectInRootSuperview: CGRect = collectionView.convert(previousCellRect,
|
|
to: rootSuperview)
|
|
|
|
moveUp = CGFloat.minimum(0, previousCellRectInRootSuperview.maxY - layoutGuide.top)
|
|
}
|
|
|
|
private func updateSuggestedOffsetYAndMoveUp(suggestedOffsetY: inout CGFloat, moveUp: inout CGFloat,
|
|
isScrollableTextInputView: Bool, nextScrollView: UIScrollView?,
|
|
textInputView: some IQTextInputView, window: UIWindow,
|
|
layoutGuide: IQLayoutGuide,
|
|
scrollViewContentOffset: CGPoint) {
|
|
// If is a UITextView type
|
|
// nextScrollView == nil
|
|
// If processing scrollView is last scrollView in upper hierarchy
|
|
// (there is no other scrollView in upper hierarchy.)
|
|
//
|
|
// suggestedOffsetY >= 0
|
|
// suggestedOffsetY must be >= 0 in order to keep distance from navigationBar (Bug ID: #92)
|
|
guard isScrollableTextInputView,
|
|
nextScrollView == nil,
|
|
suggestedOffsetY >= 0,
|
|
let superview: UIView = textInputView.superview else {
|
|
// Subtracting the Y offset from the move variable,
|
|
// because we are going to change scrollView's contentOffset.y to suggestedOffsetY.
|
|
moveUp -= (suggestedOffsetY-scrollViewContentOffset.y)
|
|
return
|
|
}
|
|
|
|
let currentTextInputViewRect: CGRect = superview.convert(textInputView.frame,
|
|
to: window)
|
|
|
|
// Calculating expected fix distance which needs to be managed from navigation bar
|
|
let expectedFixDistance: CGFloat = currentTextInputViewRect.minY - layoutGuide.top
|
|
|
|
// Now if expectedOffsetY (scrollView.contentOffset.y + expectedFixDistance)
|
|
// is lower than current suggestedOffsetY, which means we're in a position where
|
|
// navigationBar up and hide, then reducing suggestedOffsetY with expectedOffsetY
|
|
// (scrollView.contentOffset.y + expectedFixDistance)
|
|
let expectedOffsetY: CGFloat = scrollViewContentOffset.y + expectedFixDistance
|
|
suggestedOffsetY = CGFloat.minimum(suggestedOffsetY, expectedOffsetY)
|
|
|
|
// Setting move to 0 because now we don't want to move any view anymore
|
|
// (All will be managed by our contentInset logic.
|
|
moveUp = 0
|
|
}
|
|
|
|
func updateScrollViewContentOffset(scrollView: UIScrollView, newContentOffset: CGPoint,
|
|
moveUp: CGFloat, textInputView: some IQTextInputView) {
|
|
showLog("""
|
|
old contentOffset: \(scrollView.contentOffset)
|
|
new contentOffset: \(newContentOffset)
|
|
""")
|
|
showLog("Remaining Move: \(moveUp)")
|
|
|
|
// Getting problem while using `setContentOffset:animated:`, So I used animation API.
|
|
activeConfiguration.animate(alongsideTransition: {
|
|
|
|
// (Bug ID: #1365, #1508, #1541)
|
|
let stackView: UIStackView? = textInputView.iq.superviewOf(type: UIStackView.self,
|
|
belowView: scrollView)
|
|
// (Bug ID: #1901, #1996)
|
|
let animatedContentOffset: Bool = stackView != nil ||
|
|
scrollView is UICollectionView ||
|
|
scrollView is UITableView
|
|
|
|
if animatedContentOffset {
|
|
scrollView.setContentOffset(newContentOffset, animated: UIView.areAnimationsEnabled)
|
|
} else {
|
|
scrollView.contentOffset = newContentOffset
|
|
}
|
|
}, completion: {
|
|
|
|
if scrollView is UITableView || scrollView is UICollectionView {
|
|
// Skip reloading input views during interactive navigation gesture to prevent toolbar flash (Issue #2102)
|
|
if self.activeConfiguration.rootConfiguration?.isInteractiveGestureActive == false {
|
|
// This will update the next/previous states
|
|
textInputView.reloadInputViews()
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
func adjustScrollViewContentInset(lastScrollViewConfiguration: IQScrollViewConfiguration,
|
|
window: UIWindow, kbSize: CGSize, keyboardDistance: CGFloat,
|
|
rootBeginSafeAreaInsets: UIEdgeInsets) {
|
|
|
|
let lastScrollView = lastScrollViewConfiguration.scrollView
|
|
|
|
guard let lastScrollViewRect: CGRect = lastScrollView.superview?.convert(lastScrollView.frame, to: window),
|
|
!lastScrollView.iq.ignoreContentInsetAdjustment else { return }
|
|
|
|
// Updating contentInset
|
|
var bottomInset: CGFloat = (kbSize.height)-(window.frame.height-lastScrollViewRect.maxY)
|
|
let keyboardAndSafeArea: CGFloat = keyboardDistance + rootBeginSafeAreaInsets.bottom
|
|
var bottomScrollIndicatorInset: CGFloat = bottomInset - keyboardAndSafeArea
|
|
|
|
// Update the insets so that the scrollView doesn't shift incorrectly
|
|
// when the offset is near the bottom of the scroll view.
|
|
bottomInset = CGFloat.maximum(lastScrollViewConfiguration.startingContentInset.bottom, bottomInset)
|
|
let startingScrollInset: UIEdgeInsets = lastScrollViewConfiguration.startingScrollIndicatorInsets
|
|
bottomScrollIndicatorInset = CGFloat.maximum(startingScrollInset.bottom,
|
|
bottomScrollIndicatorInset)
|
|
|
|
bottomInset -= lastScrollView.safeAreaInsets.bottom
|
|
bottomScrollIndicatorInset -= lastScrollView.safeAreaInsets.bottom
|
|
|
|
var movedInsets: UIEdgeInsets = lastScrollView.contentInset
|
|
movedInsets.bottom = bottomInset
|
|
|
|
guard lastScrollView.contentInset != movedInsets else { return }
|
|
showLog("""
|
|
old ContentInset: \(lastScrollView.contentInset) new ContentInset: \(movedInsets)
|
|
""")
|
|
|
|
activeConfiguration.animate(alongsideTransition: {
|
|
lastScrollView.contentInset = movedInsets
|
|
lastScrollView.layoutIfNeeded() // (Bug ID: #1996)
|
|
|
|
var newScrollIndicatorInset: UIEdgeInsets = lastScrollView.verticalScrollIndicatorInsets
|
|
|
|
newScrollIndicatorInset.bottom = bottomScrollIndicatorInset
|
|
lastScrollView.scrollIndicatorInsets = newScrollIndicatorInset
|
|
})
|
|
}
|
|
|
|
private func adjustTextInputViewContentInset(window: UIWindow, originalKbSize: CGSize,
|
|
rootSuperview: UIView?,
|
|
layoutGuide: IQLayoutGuide,
|
|
textInputView: UIScrollView) {
|
|
let keyboardYPosition: CGFloat = window.frame.height - originalKbSize.height
|
|
var rootSuperViewFrameInWindow: CGRect = window.frame
|
|
if let rootSuperview: UIView = rootSuperview {
|
|
rootSuperViewFrameInWindow = rootSuperview.convert(rootSuperview.bounds, to: window)
|
|
}
|
|
|
|
let keyboardOverlapping: CGFloat = rootSuperViewFrameInWindow.maxY - keyboardYPosition
|
|
|
|
let availableHeight: CGFloat = rootSuperViewFrameInWindow.height-layoutGuide.top-keyboardOverlapping
|
|
let textInputViewHeight: CGFloat = CGFloat.minimum(textInputView.frame.height, availableHeight)
|
|
|
|
guard textInputView.frame.size.height-textInputView.contentInset.bottom>textInputViewHeight else { return }
|
|
// If frame is not change by library in past, then saving user textInputView properties (Bug ID: #92)
|
|
if startingTextViewConfiguration == nil {
|
|
startingTextViewConfiguration = IQScrollViewConfiguration(scrollView: textInputView,
|
|
canRestoreContentOffset: false)
|
|
}
|
|
|
|
var newContentInset: UIEdgeInsets = textInputView.contentInset
|
|
newContentInset.bottom = textInputView.frame.size.height-textInputViewHeight
|
|
newContentInset.bottom -= textInputView.safeAreaInsets.bottom
|
|
|
|
guard textInputView.contentInset != newContentInset else { return }
|
|
showLog("""
|
|
\(textInputView) Old textInputView.contentInset: \(textInputView.contentInset)
|
|
New textInputView.contentInset: \(newContentInset)
|
|
""")
|
|
|
|
activeConfiguration.animate(alongsideTransition: {
|
|
|
|
textInputView.contentInset = newContentInset
|
|
textInputView.layoutIfNeeded() // (Bug ID: #1996)
|
|
textInputView.scrollIndicatorInsets = newContentInset
|
|
})
|
|
}
|
|
|
|
func adjustRootController(moveUp: CGFloat, rootViewOrigin: CGPoint, originalKbSize: CGSize,
|
|
rootController: UIViewController, rootBeginOrigin: CGPoint) {
|
|
// +Positive or zero.
|
|
var rootViewOrigin: CGPoint = rootViewOrigin
|
|
if moveUp >= 0 {
|
|
|
|
rootViewOrigin.y = CGFloat.maximum(rootViewOrigin.y - moveUp, CGFloat.minimum(0, -originalKbSize.height))
|
|
|
|
if !rootController.view.frame.origin.equalTo(rootViewOrigin) {
|
|
showLog("Moving Upward")
|
|
|
|
activeConfiguration.animate(alongsideTransition: {
|
|
|
|
var rect: CGRect = rootController.view.frame
|
|
rect.origin = rootViewOrigin
|
|
rootController.view.frame = rect
|
|
|
|
// Animating content if needed (Bug ID: #204)
|
|
if self.layoutIfNeededOnUpdate {
|
|
// Animating content (Bug ID: #160)
|
|
rootController.view.setNeedsLayout()
|
|
rootController.view.layoutIfNeeded()
|
|
}
|
|
|
|
let classNameString: String = "\(type(of: rootController.self))"
|
|
self.showLog("Set \(classNameString) origin to: \(rootViewOrigin)")
|
|
})
|
|
}
|
|
|
|
movedDistance = rootBeginOrigin.y-rootViewOrigin.y
|
|
} else { // -Negative
|
|
let disturbDistance: CGFloat = rootViewOrigin.y-rootBeginOrigin.y
|
|
|
|
// disturbDistance Negative = frame disturbed.
|
|
// disturbDistance positive = frame not disturbed.
|
|
if disturbDistance <= 0 {
|
|
|
|
rootViewOrigin.y -= CGFloat.maximum(moveUp, disturbDistance)
|
|
|
|
if !rootController.view.frame.origin.equalTo(rootViewOrigin) {
|
|
showLog("Moving Downward")
|
|
// Setting adjusted rootViewRect
|
|
|
|
activeConfiguration.animate(alongsideTransition: {
|
|
|
|
var rect: CGRect = rootController.view.frame
|
|
rect.origin = rootViewOrigin
|
|
rootController.view.frame = rect
|
|
|
|
// Animating content if needed (Bug ID: #204)
|
|
if self.layoutIfNeededOnUpdate {
|
|
// Animating content (Bug ID: #160)
|
|
rootController.view.setNeedsLayout()
|
|
rootController.view.layoutIfNeeded()
|
|
}
|
|
|
|
let classNameString: String = "\(type(of: rootController.self))"
|
|
self.showLog("Set \(classNameString) origin to: \(rootViewOrigin)")
|
|
})
|
|
}
|
|
|
|
movedDistance = rootBeginOrigin.y-rootViewOrigin.y
|
|
}
|
|
}
|
|
}
|
|
|
|
func restoreScrollViewContentOffset(superScrollView: UIScrollView, textInputView: (some IQTextInputView)?) {
|
|
var superScrollView: UIScrollView? = superScrollView
|
|
while let scrollView: UIScrollView = superScrollView {
|
|
|
|
let width: CGFloat = CGFloat.maximum(scrollView.contentSize.width, scrollView.frame.width)
|
|
let height: CGFloat = CGFloat.maximum(scrollView.contentSize.height, scrollView.frame.height)
|
|
let contentSize: CGSize = CGSize(width: width, height: height)
|
|
|
|
let minimumY: CGFloat = contentSize.height - scrollView.frame.height
|
|
|
|
if minimumY < scrollView.contentOffset.y {
|
|
|
|
let newContentOffset: CGPoint = CGPoint(x: scrollView.contentOffset.x, y: minimumY)
|
|
if !scrollView.contentOffset.equalTo(newContentOffset) {
|
|
|
|
// (Bug ID: #1365, #1508, #1541)
|
|
let stackView: UIStackView?
|
|
if let textInputView: UIView = textInputView {
|
|
stackView = textInputView.iq.superviewOf(type: UIStackView.self,
|
|
belowView: scrollView)
|
|
} else {
|
|
stackView = nil
|
|
}
|
|
|
|
// (Bug ID: #1901, #1996)
|
|
let animatedContentOffset: Bool = stackView != nil ||
|
|
scrollView is UICollectionView ||
|
|
scrollView is UITableView
|
|
|
|
if animatedContentOffset {
|
|
scrollView.setContentOffset(newContentOffset, animated: UIView.areAnimationsEnabled)
|
|
} else {
|
|
scrollView.contentOffset = newContentOffset
|
|
}
|
|
|
|
showLog("Restoring contentOffset to: \(newContentOffset)")
|
|
}
|
|
}
|
|
|
|
superScrollView = scrollView.iq.superviewOf(type: UIScrollView.self)
|
|
}
|
|
}
|
|
}
|
|
// swiftlint:enable function_parameter_count
|