84 lines
2.8 KiB
Objective-C
84 lines
2.8 KiB
Objective-C
/*
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* Copyright [2019] [Doric.Pub]
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//
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// Created by jingpeng.wang on 2021/3/18.
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//
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#import <DoricCore/Doric.h>
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#import "DoricKeyboardPlugin.h"
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@interface DoricKeyboardPlugin ()
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@property(nonatomic, copy) NSDictionary<NSString *, id> *observers;
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@end
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@implementation DoricKeyboardPlugin
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- (NSDictionary *)observers {
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if (!_observers) {
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_observers = [NSDictionary new];
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}
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return _observers;
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}
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- (void)subscribe:(NSString *)callbackId withPromise:(DoricPromise *)promise {
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__weak typeof(self) _self = self;
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id observer = [[NSNotificationCenter defaultCenter]
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addObserverForName:UIKeyboardWillChangeFrameNotification
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object:nil
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queue:[NSOperationQueue mainQueue]
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usingBlock:^(NSNotification *note) {
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__strong typeof(_self) self = _self;
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CGRect beginFrame = [[note.userInfo valueForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue];
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CGRect endFrame = [[note.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
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BOOL isOpen = endFrame.origin.y < beginFrame.origin.y;
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int heightDiff = isOpen ? beginFrame.origin.y - endFrame.origin.y : 0;
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NSDictionary *dict = @{
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@"height": @(heightDiff),
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};
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DoricPromise *currentPromise = [[DoricPromise alloc] initWithContext:self.doricContext callbackId:callbackId];
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[currentPromise resolve:dict];
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}];
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NSMutableDictionary *mutableDictionary = [self.observers mutableCopy];
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mutableDictionary[callbackId] = observer;
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self.observers = mutableDictionary;
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[promise resolve:callbackId];
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}
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- (void)unsubscribe:(NSString *)subscribeId withPromise:(DoricPromise *)promise {
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id observer = self.observers[subscribeId];
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if (observer) {
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[[NSNotificationCenter defaultCenter] removeObserver:observer];
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NSMutableDictionary *mutableDictionary = [self.observers mutableCopy];
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[mutableDictionary removeObjectForKey:subscribeId];
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self.observers = mutableDictionary;
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}
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[promise resolve:nil];
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}
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- (void)dealloc {
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NSDictionary *dictionary = self.observers;
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[dictionary enumerateKeysAndObjectsUsingBlock:^(NSString *key, id obj, BOOL *stop) {
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[[NSNotificationCenter defaultCenter] removeObserver:obj];
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}];
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}
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@end
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