/**
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* Tencent is pleased to support the open source community by making QMUI_iOS available.
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* Copyright (C) 2016-2021 THL A29 Limited, a Tencent company. All rights reserved.
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* Licensed under the MIT License (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
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* http://opensource.org/licenses/MIT
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
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*/
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//
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// QMUIThemePrivate.m
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// QMUIKit
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//
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// Created by MoLice on 2019/J/26.
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//
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#import "QMUIThemePrivate.h"
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#import "QMUICore.h"
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#import "UIColor+QMUI.h"
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#import "UIVisualEffect+QMUITheme.h"
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#import "UIView+QMUITheme.h"
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#import "UISlider+QMUI.h"
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#import "UIView+QMUI.h"
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#import "UISearchBar+QMUI.h"
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#import "UITableViewCell+QMUI.h"
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#import "CALayer+QMUI.h"
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#import "UIVisualEffectView+QMUI.h"
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#import "UIBarItem+QMUI.h"
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#import "UITabBar+QMUI.h"
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#import "UITabBarItem+QMUI.h"
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// QMUI classes
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#import "QMUIImagePickerCollectionViewCell.h"
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#import "QMUIAlertController.h"
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#import "QMUIButton.h"
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#import "QMUIConsole.h"
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#import "QMUIEmotionView.h"
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#import "QMUIEmptyView.h"
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#import "QMUIGridView.h"
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#import "QMUIImagePreviewView.h"
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#import "QMUILabel.h"
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#import "QMUIPopupContainerView.h"
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#import "QMUIPopupMenuButtonItem.h"
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#import "QMUIPopupMenuView.h"
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#import "QMUITextField.h"
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#import "QMUITextView.h"
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#import "QMUIToastBackgroundView.h"
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#import "QMUIBadgeProtocol.h"
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@interface QMUIThemePropertiesRegister : NSObject
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@end
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@implementation QMUIThemePropertiesRegister
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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ExtendImplementationOfNonVoidMethodWithSingleArgument([UIView class], @selector(initWithFrame:), CGRect, UIView *, ^UIView *(UIView *selfObject, CGRect frame, UIView *originReturnValue) {
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({
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static NSDictionary<NSString *, NSArray<NSString *> *> *classRegisters = nil;
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if (!classRegisters) {
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classRegisters = @{
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NSStringFromClass(UISlider.class): @[NSStringFromSelector(@selector(minimumTrackTintColor)),
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NSStringFromSelector(@selector(maximumTrackTintColor)),
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NSStringFromSelector(@selector(thumbTintColor)),
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NSStringFromSelector(@selector(qmui_thumbColor))],
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NSStringFromClass(UISwitch.class): @[NSStringFromSelector(@selector(onTintColor)),
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NSStringFromSelector(@selector(thumbTintColor)),],
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NSStringFromClass(UIActivityIndicatorView.class): @[NSStringFromSelector(@selector(color)),],
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NSStringFromClass(UIProgressView.class): @[NSStringFromSelector(@selector(progressTintColor)),
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NSStringFromSelector(@selector(trackTintColor)),],
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NSStringFromClass(UIPageControl.class): @[NSStringFromSelector(@selector(pageIndicatorTintColor)),
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NSStringFromSelector(@selector(currentPageIndicatorTintColor)),],
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NSStringFromClass(UITableView.class): @[NSStringFromSelector(@selector(backgroundColor)),
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NSStringFromSelector(@selector(sectionIndexColor)),
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NSStringFromSelector(@selector(sectionIndexBackgroundColor)),
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NSStringFromSelector(@selector(sectionIndexTrackingBackgroundColor)),
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NSStringFromSelector(@selector(separatorColor)),],
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NSStringFromClass(UITableViewCell.class): @[NSStringFromSelector(@selector(qmui_selectedBackgroundColor)),],
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NSStringFromClass(UICollectionViewCell.class): @[NSStringFromSelector(@selector(qmui_selectedBackgroundColor)),],
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NSStringFromClass(UINavigationBar.class): ({
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NSMutableArray<NSString *> *result = @[
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NSStringFromSelector(@selector(qmui_effect)),
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NSStringFromSelector(@selector(qmui_effectForegroundColor)),
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].mutableCopy;
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if (@available(iOS 15.0, *)) {
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// iOS 15 在 UINavigationBar (QMUI) 里对所有旧版接口都映射到 standardAppearance，所以重新设置一次 standardAppearance 就可以更新所有样式
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[result addObject:NSStringFromSelector(@selector(standardAppearance))];
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} else {
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[result addObjectsFromArray:@[NSStringFromSelector(@selector(barTintColor)),]];
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}
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result.copy;
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}),
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NSStringFromClass(UIToolbar.class): @[NSStringFromSelector(@selector(barTintColor)),],
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NSStringFromClass(UITabBar.class): @[
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NSStringFromSelector(@selector(qmui_effect)),
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NSStringFromSelector(@selector(qmui_effectForegroundColor)),
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NSStringFromSelector(@selector(standardAppearance)),
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],
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NSStringFromClass(UISearchBar.class): @[NSStringFromSelector(@selector(barTintColor)),
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NSStringFromSelector(@selector(qmui_placeholderColor)),
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NSStringFromSelector(@selector(qmui_textColor)),],
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NSStringFromClass(UITextField.class): @[NSStringFromSelector(@selector(attributedText)),],
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NSStringFromClass(UIView.class): @[NSStringFromSelector(@selector(tintColor)),
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NSStringFromSelector(@selector(backgroundColor)),
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NSStringFromSelector(@selector(qmui_borderColor)),
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NSStringFromSelector(@selector(qmui_badgeBackgroundColor)),
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NSStringFromSelector(@selector(qmui_badgeTextColor)),
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NSStringFromSelector(@selector(qmui_updatesIndicatorColor)),],
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NSStringFromClass(UIVisualEffectView.class): @[NSStringFromSelector(@selector(effect)),
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NSStringFromSelector(@selector(qmui_foregroundColor))],
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NSStringFromClass(UIImageView.class): @[NSStringFromSelector(@selector(image))],
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// QMUI classes
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NSStringFromClass(QMUIImagePickerCollectionViewCell.class): @[NSStringFromSelector(@selector(videoDurationLabelTextColor)),],
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NSStringFromClass(QMUIButton.class): @[
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// tintColorAdjustsTitleAndImage 内部会设置给 tintColor，tintColor 自己会刷新，所以这里不要重复刷
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// https://github.com/Tencent/QMUI_iOS/issues/1452
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// NSStringFromSelector(@selector(tintColorAdjustsTitleAndImage)),
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NSStringFromSelector(@selector(highlightedBackgroundColor)),
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NSStringFromSelector(@selector(highlightedBorderColor)),],
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NSStringFromClass(QMUIConsole.class): @[NSStringFromSelector(@selector(searchResultHighlightedBackgroundColor)),],
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NSStringFromClass(QMUIEmotionView.class): @[NSStringFromSelector(@selector(sendButtonBackgroundColor)),],
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NSStringFromClass(QMUIEmptyView.class): @[NSStringFromSelector(@selector(textLabelTextColor)),
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NSStringFromSelector(@selector(detailTextLabelTextColor)),
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NSStringFromSelector(@selector(actionButtonTitleColor))],
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NSStringFromClass(QMUIGridView.class): @[NSStringFromSelector(@selector(separatorColor)),],
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NSStringFromClass(QMUIImagePreviewView.class): @[NSStringFromSelector(@selector(loadingColor)),],
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NSStringFromClass(QMUILabel.class): @[NSStringFromSelector(@selector(highlightedBackgroundColor)),],
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NSStringFromClass(QMUIPopupContainerView.class): @[NSStringFromSelector(@selector(highlightedBackgroundColor)),
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NSStringFromSelector(@selector(maskViewBackgroundColor)),
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NSStringFromSelector(@selector(borderColor)),
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NSStringFromSelector(@selector(arrowImage)),],
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NSStringFromClass(QMUIPopupMenuButtonItem.class): @[NSStringFromSelector(@selector(highlightedBackgroundColor)),],
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NSStringFromClass(QMUIPopupMenuView.class): @[NSStringFromSelector(@selector(itemSeparatorColor)),
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NSStringFromSelector(@selector(sectionSeparatorColor)),
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NSStringFromSelector(@selector(itemTitleColor))],
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NSStringFromClass(QMUITextField.class): @[NSStringFromSelector(@selector(placeholderColor)),],
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NSStringFromClass(QMUITextView.class): @[NSStringFromSelector(@selector(placeholderColor)),],
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NSStringFromClass(QMUIToastBackgroundView.class): @[NSStringFromSelector(@selector(styleColor)),],
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// 以下的 class 的更新依赖于 UIView (QMUITheme) 内的 setNeedsDisplay，这里不专门调用 setter
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// NSStringFromClass(UILabel.class): @[NSStringFromSelector(@selector(textColor)),
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// NSStringFromSelector(@selector(shadowColor)),
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// NSStringFromSelector(@selector(highlightedTextColor)),],
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// NSStringFromClass(UITextView.class): @[NSStringFromSelector(@selector(attributedText)),],
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};
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}
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[classRegisters enumerateKeysAndObjectsUsingBlock:^(NSString * _Nonnull classString, NSArray<NSString *> * _Nonnull getters, BOOL * _Nonnull stop) {
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if ([selfObject isKindOfClass:NSClassFromString(classString)]) {
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[selfObject qmui_registerThemeColorProperties:getters];
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}
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}];
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});
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return originReturnValue;
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});
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});
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}
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+ (void)registerToClass:(Class)class byBlock:(void (^)(UIView *view))block withView:(UIView *)view {
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if ([view isKindOfClass:class]) {
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block(view);
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}
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}
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@end
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@implementation UIView (QMUIThemeCompatibility)
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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// iOS 12 及以下，-[UIView setTintColor:] 被调用时，如果参数的 tintColor 与当前的 tintColor 指针相同，则不会触发 tintColorDidChange，但这对于 dynamic color 而言是不满足需求的（同一个 dynamic color 实例在任何时候返回的 rawColor 都有可能发生变化），所以这里主动为其做一次 copy 操作，规避指针地址判断的问题
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// 2022-7-20 后来发现 iOS 13-15，UIImageView、UIButton，手动切换 theme 时，tintColor 不 copy 就无法刷新，但如果是系统 Dark Mode 切换引发的 setTintColor:，即便不用 copy 也可以刷新，所以这里统一对所有 iOS 版本都做一次 copy
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// https://github.com/Tencent/QMUI_iOS/issues/1418
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OverrideImplementation([UIView class], @selector(setTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UIView *selfObject, UIColor *tintColor) {
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if (tintColor.qmui_isQMUIDynamicColor && tintColor == selfObject.tintColor) tintColor = tintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, tintColor);
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};
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});
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});
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}
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@end
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@implementation UISwitch (QMUIThemeCompatibility)
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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// 这里反而是 iOS 13 才需要用 copy 的方式强制触发更新，否则如果某个 UISwitch 处于 off 的状态，此时去更新它的 onTintColor 不会立即生效，而是要等切换到 on 时，才会看到旧的 onTintColor 一闪而过变成新的 onTintColor，所以这里加个强制刷新
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OverrideImplementation([UISwitch class], @selector(setOnTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UISwitch *selfObject, UIColor *tintColor) {
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if (tintColor.qmui_isQMUIDynamicColor && tintColor == selfObject.onTintColor) tintColor = tintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, tintColor);
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};
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});
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OverrideImplementation([UISwitch class], @selector(setThumbTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UISwitch *selfObject, UIColor *tintColor) {
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if (tintColor.qmui_isQMUIDynamicColor && tintColor == selfObject.thumbTintColor) tintColor = tintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, tintColor);
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};
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});
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});
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}
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@end
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@implementation UISlider (QMUIThemeCompatibility)
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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OverrideImplementation([UISlider class], @selector(setMinimumTrackTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UISlider *selfObject, UIColor *tintColor) {
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if (tintColor.qmui_isQMUIDynamicColor && tintColor == selfObject.minimumTrackTintColor) tintColor = tintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, tintColor);
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};
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});
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OverrideImplementation([UISlider class], @selector(setMaximumTrackTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UISlider *selfObject, UIColor *tintColor) {
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if (tintColor.qmui_isQMUIDynamicColor && tintColor == selfObject.maximumTrackTintColor) tintColor = tintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, tintColor);
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};
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});
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OverrideImplementation([UISlider class], @selector(setThumbTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UISlider *selfObject, UIColor *tintColor) {
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if (tintColor.qmui_isQMUIDynamicColor && tintColor == selfObject.thumbTintColor) tintColor = tintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, tintColor);
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};
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});
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});
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}
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@end
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@implementation UIProgressView (QMUIThemeCompatibility)
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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OverrideImplementation([UIProgressView class], @selector(setProgressTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UIProgressView *selfObject, UIColor *tintColor) {
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if (tintColor.qmui_isQMUIDynamicColor && tintColor == selfObject.progressTintColor) tintColor = tintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, tintColor);
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};
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});
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OverrideImplementation([UIProgressView class], @selector(setTrackTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UIProgressView *selfObject, UIColor *tintColor) {
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if (tintColor.qmui_isQMUIDynamicColor && tintColor == selfObject.trackTintColor) tintColor = tintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, tintColor);
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};
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});
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});
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}
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@end
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@implementation UITabBarItem (QMUIThemeCompatibility)
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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// UITabBarItem.image 会一直保存原始的 image（例如 QMUIThemeImage），但 selectedImage 只会返回 rawImage，这导致了将一个 QMUIThemeImage 设置给 selectedImage 后，主题切换后 selectedImage 无法刷新（因为 UITabBarItem 并没有保存它，保存的是它的 rawImage），所以这里自己保存 image 的引用。
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// https://github.com/Tencent/QMUI_iOS/issues/1122
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OverrideImplementation([UITabBarItem class], @selector(setSelectedImage:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UITabBarItem *selfObject, UIImage *selectedImage) {
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// 必须先保存起来再执行 super，因为 setter 的 super 里会触发 getter，如果不先保存，就会导致走到 getter 时拿到的 boundObject 还是旧值
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// https://github.com/Tencent/QMUI_iOS/issues/1218
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[selfObject qmui_bindObject:selectedImage.qmui_isDynamicImage ? selectedImage : nil forKey:@"UITabBarItem(QMUIThemeCompatibility).selectedImage"];
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// call super
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void (*originSelectorIMP)(id, SEL, UIImage *);
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originSelectorIMP = (void (*)(id, SEL, UIImage *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, selectedImage);
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};
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});
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OverrideImplementation([UITabBarItem class], @selector(selectedImage), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^UIImage *(UITabBarItem *selfObject) {
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// call super
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UIImage * (*originSelectorIMP)(id, SEL);
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originSelectorIMP = (UIImage * (*)(id, SEL))originalIMPProvider();
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UIImage *result = originSelectorIMP(selfObject, originCMD);
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UIImage *selectedImage = [selfObject qmui_getBoundObjectForKey:@"UITabBarItem(QMUIThemeCompatibility).selectedImage"];
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if (selectedImage) {
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return selectedImage;
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}
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return result;
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};
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});
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});
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}
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@end
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@implementation UIVisualEffectView (QMUIThemeCompatibility)
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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OverrideImplementation([UIVisualEffectView class], @selector(setEffect:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UIVisualEffectView *selfObject, UIVisualEffect *effect) {
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if (effect.qmui_isDynamicEffect && effect == selfObject.effect) effect = effect.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIVisualEffect *);
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originSelectorIMP = (void (*)(id, SEL, UIVisualEffect *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, effect);
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};
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});
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});
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}
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@end
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@interface CALayer ()
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@property(nonatomic, strong) UIColor *qcl_originalBackgroundColor;
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@property(nonatomic, strong) UIColor *qcl_originalBorderColor;
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@property(nonatomic, strong) UIColor *qcl_originalShadowColor;
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@end
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@implementation CALayer (QMUIThemeCompatibility)
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QMUISynthesizeIdStrongProperty(qcl_originalBackgroundColor, setQcl_originalBackgroundColor)
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QMUISynthesizeIdStrongProperty(qcl_originalBorderColor, setQcl_originalBorderColor)
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QMUISynthesizeIdStrongProperty(qcl_originalShadowColor, setQcl_originalShadowColor)
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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OverrideImplementation([CALayer class], @selector(setBackgroundColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(CALayer *selfObject, CGColorRef color) {
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// 这里是为了让 CGColor 也支持动态颜色
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// iOS 13 的 UIDynamicProviderColor，以及 QMUIThemeColor 在获取 CGColor 时会将自身绑定到 CGColorRef 上，这里把原始的 color 重新获取出来存到 property 里，以备样式更新时调用
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UIColor *originalColor = [(__bridge id)(color) qmui_getBoundObjectForKey:QMUICGColorOriginalColorBindKey];
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selfObject.qcl_originalBackgroundColor = originalColor;
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// call super
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void (*originSelectorIMP)(id, SEL, CGColorRef);
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originSelectorIMP = (void (*)(id, SEL, CGColorRef))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, color);
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};
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});
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OverrideImplementation([CALayer class], @selector(setBorderColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(CALayer *selfObject, CGColorRef color) {
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UIColor *originalColor = [(__bridge id)(color) qmui_getBoundObjectForKey:QMUICGColorOriginalColorBindKey];
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selfObject.qcl_originalBorderColor = originalColor;
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// call super
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void (*originSelectorIMP)(id, SEL, CGColorRef);
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originSelectorIMP = (void (*)(id, SEL, CGColorRef))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, color);
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};
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});
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OverrideImplementation([CALayer class], @selector(setShadowColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(CALayer *selfObject, CGColorRef color) {
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UIColor *originalColor = [(__bridge id)(color) qmui_getBoundObjectForKey:QMUICGColorOriginalColorBindKey];
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selfObject.qcl_originalShadowColor = originalColor;
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// call super
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void (*originSelectorIMP)(id, SEL, CGColorRef);
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originSelectorIMP = (void (*)(id, SEL, CGColorRef))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, color);
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};
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});
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// iOS 13 下，如果系统的主题发生变化，会自动调用每个 view 的 layoutSubviews，所以我们在这里面自动更新样式
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// 如果是 QMUIThemeManager 引发的主题变化，会在 theme 那边主动调用 qmui_setNeedsUpdateDynamicStyle，就不依赖这里
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ExtendImplementationOfVoidMethodWithoutArguments([UIView class], @selector(layoutSubviews), ^(UIView *selfObject) {
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[selfObject.layer qmui_setNeedsUpdateDynamicStyle];
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});
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});
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}
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/// 这里的逻辑用于让 CGColor 也支持响应
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- (void)qmui_setNeedsUpdateDynamicStyle {
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if (self.qcl_originalBackgroundColor) {
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UIColor *originalColor = self.qcl_originalBackgroundColor;
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self.backgroundColor = originalColor.CGColor;
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}
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if (self.qcl_originalBorderColor) {
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self.borderColor = self.qcl_originalBorderColor.CGColor;
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}
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if (self.qcl_originalShadowColor) {
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self.shadowColor = self.qcl_originalShadowColor.CGColor;
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}
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[self.sublayers enumerateObjectsUsingBlock:^(__kindof CALayer * _Nonnull sublayer, NSUInteger idx, BOOL * _Nonnull stop) {
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if (!sublayer.qmui_isRootLayerOfView) {// 如果是 UIView 的 rootLayer，它会依赖 UIView 树自己的 layoutSubviews 去逐个触发，不需要手动遍历到，这里只需要遍历那些额外添加到 layer 上的 sublayer 即可
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[sublayer qmui_setNeedsUpdateDynamicStyle];
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}
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}];
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}
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@end
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@interface UISearchBar ()
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@property(nonatomic, readonly) NSMutableDictionary <NSString * ,NSInvocation *>*qmuiTheme_invocations;
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@end
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@implementation UISearchBar (QMUIThemeCompatibility)
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+ (void)load {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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OverrideImplementation([UISearchBar class], @selector(setSearchFieldBackgroundImage:forState:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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NSMethodSignature *methodSignature = [originClass instanceMethodSignatureForSelector:originCMD];
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return ^(UISearchBar *selfObject, UIImage *image, UIControlState state) {
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void (*originSelectorIMP)(id, SEL, UIImage *, UIControlState);
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originSelectorIMP = (void (*)(id, SEL, UIImage *, UIControlState))originalIMPProvider();
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UIImage *previousImage = [selfObject searchFieldBackgroundImageForState:state];
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if (previousImage.qmui_isDynamicImage || image.qmui_isDynamicImage) {
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// setSearchFieldBackgroundImage:forState: 的内部实现原理:
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// 执行后将 image 先存起来，在 layout 时会调用 -[UITextFieldBorderView setImage:] 该方法内部有一个判断：
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// if (UITextFieldBorderView._image == image) return
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// 由于 QMUIDynamicImage 随时可能发生图片的改变，这里要绕过这个判断：必须先清空一下 image，并马上调用 layoutIfNeeded 触发 -[UITextFieldBorderView setImage:] 使得 UITextFieldBorderView 内部的 image 清空，这样再设置新的才会生效。
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originSelectorIMP(selfObject, originCMD, UIImage.new, state);
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[selfObject.searchTextField setNeedsLayout];
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[selfObject.searchTextField layoutIfNeeded];
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}
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originSelectorIMP(selfObject, originCMD, image, state);
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NSInvocation *invocation = nil;
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NSString *invocationActionKey = [NSString stringWithFormat:@"%@-%zd", NSStringFromSelector(originCMD), state];
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if (image.qmui_isDynamicImage) {
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invocation = [NSInvocation invocationWithMethodSignature:methodSignature];
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[invocation setSelector:originCMD];
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[invocation setArgument:&image atIndex:2];
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[invocation setArgument:&state atIndex:3];
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[invocation retainArguments];
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}
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selfObject.qmuiTheme_invocations[invocationActionKey] = invocation;
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};
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});
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OverrideImplementation([UISearchBar class], @selector(setBarTintColor:), ^id(__unsafe_unretained Class originClass, SEL originCMD, IMP (^originalIMPProvider)(void)) {
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return ^(UISearchBar *selfObject, UIColor *barTintColor) {
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if (barTintColor.qmui_isQMUIDynamicColor && barTintColor == selfObject.barTintColor) barTintColor = barTintColor.copy;
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// call super
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void (*originSelectorIMP)(id, SEL, UIColor *);
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originSelectorIMP = (void (*)(id, SEL, UIColor *))originalIMPProvider();
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originSelectorIMP(selfObject, originCMD, barTintColor);
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};
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});
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});
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}
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- (void)_qmui_themeDidChangeByManager:(QMUIThemeManager *)manager identifier:(__kindof NSObject<NSCopying> *)identifier theme:(__kindof NSObject *)theme shouldEnumeratorSubviews:(BOOL)shouldEnumeratorSubviews {
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[super _qmui_themeDidChangeByManager:manager identifier:identifier theme:theme shouldEnumeratorSubviews:shouldEnumeratorSubviews];
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[self qmuiTheme_performUpdateInvocations];
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}
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- (void)qmuiTheme_performUpdateInvocations {
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[[self.qmuiTheme_invocations allValues] enumerateObjectsUsingBlock:^(NSInvocation * _Nonnull invocation, NSUInteger idx, BOOL * _Nonnull stop) {
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[invocation setTarget:self];
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[invocation invoke];
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}];
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}
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- (NSMutableDictionary *)qmuiTheme_invocations {
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NSMutableDictionary *qmuiTheme_invocations = objc_getAssociatedObject(self, _cmd);
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if (!qmuiTheme_invocations) {
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qmuiTheme_invocations = [NSMutableDictionary dictionary];
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objc_setAssociatedObject(self, _cmd, qmuiTheme_invocations, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
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}
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return qmuiTheme_invocations;
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}
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@end
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