145 lines
3.9 KiB
Objective-C
145 lines
3.9 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 <QuartzCore/QuartzCore.h>
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#import "RCTBridge.h"
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#import "RCTDevLoadingView.h"
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#import "RCTDefines.h"
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#import "RCTUtils.h"
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#import "RCTModalHostViewController.h"
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#if RCT_DEV
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static BOOL isEnabled = YES;
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@implementation RCTDevLoadingView
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{
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UIWindow *_window;
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UILabel *_label;
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NSDate *_showDate;
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}
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@synthesize bridge = _bridge;
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RCT_EXPORT_MODULE()
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+ (void)setEnabled:(BOOL)enabled
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{
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isEnabled = enabled;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)setBridge:(RCTBridge *)bridge
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{
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_bridge = bridge;
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(hide)
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name:RCTJavaScriptDidLoadNotification
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object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(hide)
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name:RCTJavaScriptDidFailToLoadNotification
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object:nil];
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[self showWithURL:bridge.bundleURL];
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}
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RCT_EXPORT_METHOD(showMessage:(NSString *)message color:(UIColor *)color backgroundColor:(UIColor *)backgroundColor)
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{
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if (!isEnabled) {
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return;
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}
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dispatch_async(dispatch_get_main_queue(), ^{
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_showDate = [NSDate date];
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if (!_window && !RCTRunningInTestEnvironment()) {
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CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;
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_window = [[UIWindow alloc] initWithFrame:CGRectMake(0, 0, screenWidth, 22)];
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_window.windowLevel = UIWindowLevelStatusBar + 1;
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// set a root VC so rotation is supported
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_window.rootViewController = [UIViewController new];
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_label = [[UILabel alloc] initWithFrame:_window.bounds];
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_label.font = [UIFont systemFontOfSize:12.0];
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_label.textAlignment = NSTextAlignmentCenter;
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[_window addSubview:_label];
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}
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_label.text = message;
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_label.textColor = color;
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_window.backgroundColor = backgroundColor;
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_window.hidden = NO;
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});
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}
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RCT_EXPORT_METHOD(hide)
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{
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if (!isEnabled) {
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return;
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}
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dispatch_async(dispatch_get_main_queue(), ^{
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const NSTimeInterval MIN_PRESENTED_TIME = 0.6;
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NSTimeInterval presentedTime = [[NSDate date] timeIntervalSinceDate:_showDate];
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NSTimeInterval delay = MAX(0, MIN_PRESENTED_TIME - presentedTime);
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CGRect windowFrame = _window.frame;
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[UIView animateWithDuration:0.25
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delay:delay
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options:0
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animations:^{
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_window.frame = CGRectOffset(windowFrame, 0, -windowFrame.size.height);
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} completion:^(__unused BOOL finished) {
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_window.frame = windowFrame;
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_window.hidden = YES;
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_window = nil;
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}];
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});
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}
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- (void)showWithURL:(NSURL *)URL
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{
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UIColor *color;
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UIColor *backgroundColor;
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NSString *source;
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if (URL.fileURL) {
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color = [UIColor grayColor];
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backgroundColor = [UIColor blackColor];
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source = @"pre-bundled file";
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} else {
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color = [UIColor whiteColor];
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backgroundColor = [UIColor colorWithHue:1./3 saturation:1 brightness:.35 alpha:1];
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source = [NSString stringWithFormat:@"%@:%@", URL.host, URL.port];
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}
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[self showMessage:[NSString stringWithFormat:@"Loading from %@...", source]
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color:color
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backgroundColor:backgroundColor];
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}
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@end
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#else
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@implementation RCTDevLoadingView
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+ (NSString *)moduleName { return nil; }
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+ (void)setEnabled:(BOOL)enabled { }
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@end
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#endif
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