react-native/React/Modules/RCTRedBox.m

494 lines
17 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTRedBox.h"
#import "RCTBridge.h"
#import "RCTConvert.h"
#import "RCTDefines.h"
#import "RCTErrorInfo.h"
#import "RCTJSStackFrame.h"
#import "RCTUtils.h"
#if RCT_DEBUG
@class RCTRedBoxWindow;
@protocol RCTRedBoxWindowActionDelegate <NSObject>
- (void)redBoxWindow:(RCTRedBoxWindow *)redBoxWindow openStackFrameInEditor:(RCTJSStackFrame *)stackFrame;
- (void)reloadFromRedBoxWindow:(RCTRedBoxWindow *)redBoxWindow;
@end
@interface RCTRedBoxWindow : UIWindow <UITableViewDelegate, UITableViewDataSource>
@property (nonatomic, weak) id<RCTRedBoxWindowActionDelegate> actionDelegate;
@end
@implementation RCTRedBoxWindow
{
UITableView *_stackTraceTableView;
NSString *_lastErrorMessage;
NSArray<RCTJSStackFrame *> *_lastStackTrace;
}
- (instancetype)initWithFrame:(CGRect)frame
{
if ((self = [super initWithFrame:frame])) {
self.windowLevel = UIWindowLevelAlert + 1000;
self.backgroundColor = [UIColor colorWithRed:0.8 green:0 blue:0 alpha:1];
self.hidden = YES;
UIViewController *rootController = [UIViewController new];
self.rootViewController = rootController;
UIView *rootView = rootController.view;
rootView.backgroundColor = [UIColor clearColor];
const CGFloat buttonHeight = 60;
CGRect detailsFrame = rootView.bounds;
detailsFrame.size.height -= buttonHeight;
_stackTraceTableView = [[UITableView alloc] initWithFrame:detailsFrame style:UITableViewStylePlain];
_stackTraceTableView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
_stackTraceTableView.delegate = self;
_stackTraceTableView.dataSource = self;
_stackTraceTableView.backgroundColor = [UIColor clearColor];
#if !TARGET_OS_TV
_stackTraceTableView.separatorColor = [UIColor colorWithWhite:1 alpha:0.3];
_stackTraceTableView.separatorStyle = UITableViewCellSeparatorStyleNone;
#endif
_stackTraceTableView.indicatorStyle = UIScrollViewIndicatorStyleWhite;
[rootView addSubview:_stackTraceTableView];
#if TARGET_OS_SIMULATOR
NSString *reloadText = @"Reload JS (\u2318R)";
NSString *dismissText = @"Dismiss (ESC)";
NSString *copyText = @"Copy (\u2325\u2318C)";
#else
NSString *reloadText = @"Reload JS";
NSString *dismissText = @"Dismiss";
NSString *copyText = @"Copy";
#endif
UIButton *dismissButton = [UIButton buttonWithType:UIButtonTypeCustom];
dismissButton.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleRightMargin;
dismissButton.accessibilityIdentifier = @"redbox-dismiss";
dismissButton.titleLabel.font = [UIFont systemFontOfSize:14];
[dismissButton setTitle:dismissText forState:UIControlStateNormal];
[dismissButton setTitleColor:[UIColor colorWithWhite:1 alpha:0.5] forState:UIControlStateNormal];
[dismissButton setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
[dismissButton addTarget:self action:@selector(dismiss) forControlEvents:UIControlEventTouchUpInside];
UIButton *reloadButton = [UIButton buttonWithType:UIButtonTypeCustom];
reloadButton.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin;
reloadButton.accessibilityIdentifier = @"redbox-reload";
reloadButton.titleLabel.font = [UIFont systemFontOfSize:14];
[reloadButton setTitle:reloadText forState:UIControlStateNormal];
[reloadButton setTitleColor:[UIColor colorWithWhite:1 alpha:0.5] forState:UIControlStateNormal];
[reloadButton setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
[reloadButton addTarget:self action:@selector(reload) forControlEvents:UIControlEventTouchUpInside];
UIButton *copyButton = [UIButton buttonWithType:UIButtonTypeCustom];
copyButton.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin;
copyButton.accessibilityIdentifier = @"redbox-copy";
copyButton.titleLabel.font = [UIFont systemFontOfSize:14];
[copyButton setTitle:copyText forState:UIControlStateNormal];
[copyButton setTitleColor:[UIColor colorWithWhite:1 alpha:0.5] forState:UIControlStateNormal];
[copyButton setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
[copyButton addTarget:self action:@selector(copyStack) forControlEvents:UIControlEventTouchUpInside];
CGFloat buttonWidth = self.bounds.size.width / 3;
dismissButton.frame = CGRectMake(0, self.bounds.size.height - buttonHeight, buttonWidth, buttonHeight);
reloadButton.frame = CGRectMake(buttonWidth, self.bounds.size.height - buttonHeight, buttonWidth, buttonHeight);
copyButton.frame = CGRectMake(buttonWidth * 2, self.bounds.size.height - buttonHeight, buttonWidth, buttonHeight);
[rootView addSubview:dismissButton];
[rootView addSubview:reloadButton];
[rootView addSubview:copyButton];
}
return self;
}
RCT_NOT_IMPLEMENTED(- (instancetype)initWithCoder:(NSCoder *)aDecoder)
- (void)dealloc
{
_stackTraceTableView.dataSource = nil;
_stackTraceTableView.delegate = nil;
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
- (void)showErrorMessage:(NSString *)message withStack:(NSArray<RCTJSStackFrame *> *)stack isUpdate:(BOOL)isUpdate
{
// Show if this is a new message, or if we're updating the previous message
if ((self.hidden && !isUpdate) || (!self.hidden && isUpdate && [_lastErrorMessage isEqualToString:message])) {
_lastStackTrace = stack;
// message is displayed using UILabel, which is unable to render text of
// unlimited length, so we truncate it
_lastErrorMessage = [message substringToIndex:MIN((NSUInteger)10000, message.length)];
[_stackTraceTableView reloadData];
if (self.hidden) {
[_stackTraceTableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0]
atScrollPosition:UITableViewScrollPositionTop
animated:NO];
}
[self makeKeyAndVisible];
[self becomeFirstResponder];
}
}
- (void)dismiss
{
self.hidden = YES;
[self resignFirstResponder];
[RCTSharedApplication().delegate.window makeKeyWindow];
}
- (void)reload
{
[_actionDelegate reloadFromRedBoxWindow:self];
}
- (void)copyStack
{
NSMutableString *fullStackTrace;
if (_lastErrorMessage != nil) {
fullStackTrace = [_lastErrorMessage mutableCopy];
[fullStackTrace appendString:@"\n\n"];
}
else {
fullStackTrace = [NSMutableString string];
}
for (RCTJSStackFrame *stackFrame in _lastStackTrace) {
[fullStackTrace appendString:[NSString stringWithFormat:@"%@\n", stackFrame.methodName]];
if (stackFrame.file) {
[fullStackTrace appendFormat:@" %@\n", [self formatFrameSource:stackFrame]];
}
}
#if !TARGET_OS_TV
UIPasteboard *pb = [UIPasteboard generalPasteboard];
[pb setString:fullStackTrace];
#endif
}
- (NSString *)formatFrameSource:(RCTJSStackFrame *)stackFrame
{
NSString *lineInfo = [NSString stringWithFormat:@"%@:%zd",
[stackFrame.file lastPathComponent],
stackFrame.lineNumber];
if (stackFrame.column != 0) {
lineInfo = [lineInfo stringByAppendingFormat:@":%zd", stackFrame.column];
}
return lineInfo;
}
#pragma mark - TableView
- (NSInteger)numberOfSectionsInTableView:(__unused UITableView *)tableView
{
return 2;
}
- (NSInteger)tableView:(__unused UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return section == 0 ? 1 : _lastStackTrace.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.section == 0) {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"msg-cell"];
return [self reuseCell:cell forErrorMessage:_lastErrorMessage];
}
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
NSUInteger index = indexPath.row;
RCTJSStackFrame *stackFrame = _lastStackTrace[index];
return [self reuseCell:cell forStackFrame:stackFrame];
}
- (UITableViewCell *)reuseCell:(UITableViewCell *)cell forErrorMessage:(NSString *)message
{
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"msg-cell"];
cell.textLabel.accessibilityIdentifier = @"redbox-error";
cell.textLabel.textColor = [UIColor whiteColor];
cell.textLabel.font = [UIFont boldSystemFontOfSize:16];
cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping;
cell.textLabel.numberOfLines = 0;
cell.detailTextLabel.textColor = [UIColor whiteColor];
cell.backgroundColor = [UIColor clearColor];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
cell.textLabel.text = message;
return cell;
}
- (UITableViewCell *)reuseCell:(UITableViewCell *)cell forStackFrame:(RCTJSStackFrame *)stackFrame
{
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"cell"];
cell.textLabel.textColor = [UIColor colorWithWhite:1 alpha:0.9];
cell.textLabel.font = [UIFont fontWithName:@"Menlo-Regular" size:14];
cell.textLabel.lineBreakMode = NSLineBreakByCharWrapping;
cell.textLabel.numberOfLines = 2;
cell.detailTextLabel.textColor = [UIColor colorWithWhite:1 alpha:0.7];
cell.detailTextLabel.font = [UIFont fontWithName:@"Menlo-Regular" size:11];
cell.detailTextLabel.lineBreakMode = NSLineBreakByTruncatingMiddle;
cell.backgroundColor = [UIColor clearColor];
cell.selectedBackgroundView = [UIView new];
cell.selectedBackgroundView.backgroundColor = [UIColor colorWithWhite:0 alpha:0.2];
}
cell.textLabel.text = stackFrame.methodName;
if (stackFrame.file) {
cell.detailTextLabel.text = [self formatFrameSource:stackFrame];
} else {
cell.detailTextLabel.text = @"";
}
return cell;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.section == 0) {
NSMutableParagraphStyle *paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
NSDictionary *attributes = @{NSFontAttributeName: [UIFont boldSystemFontOfSize:16],
NSParagraphStyleAttributeName: paragraphStyle};
CGRect boundingRect = [_lastErrorMessage boundingRectWithSize:CGSizeMake(tableView.frame.size.width - 30, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil];
return ceil(boundingRect.size.height) + 40;
} else {
return 50;
}
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.section == 1) {
NSUInteger row = indexPath.row;
RCTJSStackFrame *stackFrame = _lastStackTrace[row];
[_actionDelegate redBoxWindow:self openStackFrameInEditor:stackFrame];
}
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
#pragma mark - Key commands
- (NSArray<UIKeyCommand *> *)keyCommands
{
// NOTE: We could use RCTKeyCommands for this, but since
// we control this window, we can use the standard, non-hacky
// mechanism instead
return @[
// Dismiss red box
[UIKeyCommand keyCommandWithInput:UIKeyInputEscape
modifierFlags:0
action:@selector(dismiss)],
// Reload
[UIKeyCommand keyCommandWithInput:@"r"
modifierFlags:UIKeyModifierCommand
action:@selector(reload)],
// Copy = Cmd-Option C since Cmd-C in the simulator copies the pasteboard from
// the simulator to the desktop pasteboard.
[UIKeyCommand keyCommandWithInput:@"c"
modifierFlags:UIKeyModifierCommand | UIKeyModifierAlternate
action:@selector(copyStack)]
];
}
- (BOOL)canBecomeFirstResponder
{
return YES;
}
@end
@interface RCTRedBox () <RCTInvalidating, RCTRedBoxWindowActionDelegate>
@end
@implementation RCTRedBox
{
RCTRedBoxWindow *_window;
NSMutableArray<id<RCTErrorCustomizer>> *_errorCustomizers;
}
@synthesize bridge = _bridge;
RCT_EXPORT_MODULE()
- (void)registerErrorCustomizer:(id<RCTErrorCustomizer>)errorCustomizer
{
dispatch_async(dispatch_get_main_queue(), ^{
if (!self->_errorCustomizers) {
self->_errorCustomizers = [NSMutableArray array];
}
if (![self->_errorCustomizers containsObject:errorCustomizer]) {
[self->_errorCustomizers addObject:errorCustomizer];
}
});
}
// WARNING: Should only be called from the main thread/dispatch queue.
- (RCTErrorInfo *)_customizeError:(RCTErrorInfo *)error
{
RCTAssertMainQueue();
if (!self->_errorCustomizers) {
return error;
}
for (id<RCTErrorCustomizer> customizer in self->_errorCustomizers) {
RCTErrorInfo *newInfo = [customizer customizeErrorInfo:error];
if (newInfo) {
error = newInfo;
}
}
return error;
}
- (void)showError:(NSError *)error
{
[self showErrorMessage:error.localizedDescription withDetails:error.localizedFailureReason];
}
- (void)showErrorMessage:(NSString *)message
{
[self showErrorMessage:message withStack:nil isUpdate:NO];
}
- (void)showErrorMessage:(NSString *)message withDetails:(NSString *)details
{
NSString *combinedMessage = message;
if (details) {
combinedMessage = [NSString stringWithFormat:@"%@\n\n%@", message, details];
}
[self showErrorMessage:combinedMessage withStack:nil isUpdate:NO];
}
- (void)showErrorMessage:(NSString *)message withRawStack:(NSString *)rawStack
{
NSArray<RCTJSStackFrame *> *stack = [RCTJSStackFrame stackFramesWithLines:rawStack];
[self showErrorMessage:message withStack:stack isUpdate:NO];
}
- (void)showErrorMessage:(NSString *)message withStack:(NSArray *)stack
{
[self showErrorMessage:message withStack:stack isUpdate:NO];
}
- (void)updateErrorMessage:(NSString *)message withStack:(NSArray *)stack
{
[self showErrorMessage:message withStack:stack isUpdate:YES];
}
- (void)showErrorMessage:(NSString *)message withStack:(NSArray *)stack isUpdate:(BOOL)isUpdate
{
if (![[stack firstObject] isKindOfClass:[RCTJSStackFrame class]]) {
stack = [RCTJSStackFrame stackFramesWithDictionaries:stack];
}
dispatch_async(dispatch_get_main_queue(), ^{
if (!self->_window) {
self->_window = [[RCTRedBoxWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
self->_window.actionDelegate = self;
}
RCTErrorInfo *errorInfo = [[RCTErrorInfo alloc] initWithErrorMessage:message
stack:stack];
errorInfo = [self _customizeError:errorInfo];
[self->_window showErrorMessage:errorInfo.errorMessage
withStack:errorInfo.stack
isUpdate:isUpdate];
});
}
RCT_EXPORT_METHOD(dismiss)
{
dispatch_async(dispatch_get_main_queue(), ^{
[self->_window dismiss];
});
}
- (void)invalidate
{
[self dismiss];
}
- (void)redBoxWindow:(__unused RCTRedBoxWindow *)redBoxWindow openStackFrameInEditor:(RCTJSStackFrame *)stackFrame
{
if (![_bridge.bundleURL.scheme hasPrefix:@"http"]) {
RCTLogWarn(@"Cannot open stack frame in editor because you're not connected to the packager.");
return;
}
NSData *stackFrameJSON = [RCTJSONStringify([stackFrame toDictionary], NULL) dataUsingEncoding:NSUTF8StringEncoding];
NSString *postLength = [NSString stringWithFormat:@"%tu", stackFrameJSON.length];
NSMutableURLRequest *request = [NSMutableURLRequest new];
request.URL = [NSURL URLWithString:@"/open-stack-frame" relativeToURL:_bridge.bundleURL];
request.HTTPMethod = @"POST";
request.HTTPBody = stackFrameJSON;
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[[[NSURLSession sharedSession] dataTaskWithRequest:request] resume];
}
- (void)reloadFromRedBoxWindow:(__unused RCTRedBoxWindow *)redBoxWindow
{
[_bridge reload];
}
@end
@implementation RCTBridge (RCTRedBox)
- (RCTRedBox *)redBox
{
return [self moduleForClass:[RCTRedBox class]];
}
@end
#else // Disabled
@implementation RCTRedBox
+ (NSString *)moduleName { return nil; }
- (void)registerErrorCustomizer:(id<RCTErrorCustomizer>)errorCustomizer {}
- (void)showError:(NSError *)message {}
- (void)showErrorMessage:(NSString *)message {}
- (void)showErrorMessage:(NSString *)message withDetails:(NSString *)details {}
- (void)showErrorMessage:(NSString *)message withRawStack:(NSString *)rawStack {}
- (void)showErrorMessage:(NSString *)message withStack:(NSArray<NSDictionary *> *)stack {}
- (void)updateErrorMessage:(NSString *)message withStack:(NSArray<NSDictionary *> *)stack {}
- (void)showErrorMessage:(NSString *)message withStack:(NSArray<NSDictionary *> *)stack isUpdate:(BOOL)isUpdate {}
- (void)dismiss {}
@end
@implementation RCTBridge (RCTRedBox)
- (RCTRedBox *)redBox { return nil; }
@end
#endif