95 lines
2.4 KiB
Objective-C
95 lines
2.4 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTSliderManager.h"
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#import "RCTBridge.h"
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#import "RCTEventDispatcher.h"
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#import "RCTSlider.h"
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#import "UIView+React.h"
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@implementation RCTSliderManager
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RCT_EXPORT_MODULE()
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- (UIView *)view
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{
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RCTSlider *slider = [RCTSlider new];
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[slider addTarget:self action:@selector(sliderValueChanged:)
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forControlEvents:UIControlEventValueChanged];
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[slider addTarget:self action:@selector(sliderTouchEnd:)
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forControlEvents:(UIControlEventTouchUpInside |
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UIControlEventTouchUpOutside |
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UIControlEventTouchCancel)];
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return slider;
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}
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static void RCTSendSliderEvent(RCTSlider *sender, BOOL continuous)
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{
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float value = sender.value;
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if (sender.step > 0 &&
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sender.step <= (sender.maximumValue - sender.minimumValue)) {
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value =
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MAX(sender.minimumValue,
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MIN(sender.maximumValue,
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sender.minimumValue + round((sender.value - sender.minimumValue) / sender.step) * sender.step
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)
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);
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[sender setValue:value animated:YES];
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}
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if (continuous) {
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if (sender.onValueChange && sender.lastValue != value) {
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sender.onValueChange(@{
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@"value": @(value),
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});
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}
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} else {
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if (sender.onSlidingComplete) {
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sender.onSlidingComplete(@{
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@"value": @(value),
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});
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}
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}
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sender.lastValue = value;
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}
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- (void)sliderValueChanged:(RCTSlider *)sender
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{
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RCTSendSliderEvent(sender, YES);
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}
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- (void)sliderTouchEnd:(RCTSlider *)sender
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{
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RCTSendSliderEvent(sender, NO);
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}
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RCT_EXPORT_VIEW_PROPERTY(value, float);
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RCT_EXPORT_VIEW_PROPERTY(step, float);
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RCT_EXPORT_VIEW_PROPERTY(minimumValue, float);
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RCT_EXPORT_VIEW_PROPERTY(maximumValue, float);
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RCT_EXPORT_VIEW_PROPERTY(minimumTrackTintColor, UIColor);
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RCT_EXPORT_VIEW_PROPERTY(maximumTrackTintColor, UIColor);
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RCT_EXPORT_VIEW_PROPERTY(onValueChange, RCTBubblingEventBlock);
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RCT_EXPORT_VIEW_PROPERTY(onSlidingComplete, RCTBubblingEventBlock);
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RCT_CUSTOM_VIEW_PROPERTY(disabled, BOOL, RCTSlider)
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{
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if (json) {
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view.enabled = !([RCTConvert BOOL:json]);
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} else {
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view.enabled = defaultView.enabled;
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}
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}
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@end
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