react-native/React/Views/RCTWebViewManager.m

123 lines
4.2 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 "RCTWebViewManager.h"
#import "RCTBridge.h"
#import "RCTUIManager.h"
#import "RCTWebView.h"
#import "UIView+React.h"
@interface RCTWebViewManager () <RCTWebViewDelegate>
@end
@implementation RCTWebViewManager
{
NSConditionLock *_shouldStartLoadLock;
BOOL _shouldStartLoad;
}
RCT_EXPORT_MODULE()
- (UIView *)view
{
RCTWebView *webView = [RCTWebView new];
webView.delegate = self;
return webView;
}
RCT_EXPORT_VIEW_PROPERTY(source, NSDictionary)
RCT_REMAP_VIEW_PROPERTY(bounces, _webView.scrollView.bounces, BOOL)
RCT_REMAP_VIEW_PROPERTY(scrollEnabled, _webView.scrollView.scrollEnabled, BOOL)
RCT_REMAP_VIEW_PROPERTY(decelerationRate, _webView.scrollView.decelerationRate, CGFloat)
RCT_EXPORT_VIEW_PROPERTY(scalesPageToFit, BOOL)
RCT_EXPORT_VIEW_PROPERTY(injectedJavaScript, NSString)
RCT_EXPORT_VIEW_PROPERTY(contentInset, UIEdgeInsets)
RCT_EXPORT_VIEW_PROPERTY(automaticallyAdjustContentInsets, BOOL)
RCT_EXPORT_VIEW_PROPERTY(onLoadingStart, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onLoadingFinish, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onLoadingError, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onShouldStartLoadWithRequest, RCTDirectEventBlock)
RCT_REMAP_VIEW_PROPERTY(allowsInlineMediaPlayback, _webView.allowsInlineMediaPlayback, BOOL)
RCT_REMAP_VIEW_PROPERTY(mediaPlaybackRequiresUserAction, _webView.mediaPlaybackRequiresUserAction, BOOL)
RCT_EXPORT_METHOD(goBack:(nonnull NSNumber *)reactTag)
{
[self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTWebView *> *viewRegistry) {
RCTWebView *view = viewRegistry[reactTag];
if (![view isKindOfClass:[RCTWebView class]]) {
RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view);
} else {
[view goBack];
}
}];
}
RCT_EXPORT_METHOD(goForward:(nonnull NSNumber *)reactTag)
{
[self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
id view = viewRegistry[reactTag];
if (![view isKindOfClass:[RCTWebView class]]) {
RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view);
} else {
[view goForward];
}
}];
}
RCT_EXPORT_METHOD(reload:(nonnull NSNumber *)reactTag)
{
[self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTWebView *> *viewRegistry) {
RCTWebView *view = viewRegistry[reactTag];
if (![view isKindOfClass:[RCTWebView class]]) {
RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view);
} else {
[view reload];
}
}];
}
#pragma mark - Exported synchronous methods
- (BOOL)webView:(__unused RCTWebView *)webView
shouldStartLoadForRequest:(NSMutableDictionary<NSString *, id> *)request
withCallback:(RCTDirectEventBlock)callback
{
_shouldStartLoadLock = [[NSConditionLock alloc] initWithCondition:arc4random()];
_shouldStartLoad = YES;
request[@"lockIdentifier"] = @(_shouldStartLoadLock.condition);
callback(request);
// Block the main thread for a maximum of 250ms until the JS thread returns
if ([_shouldStartLoadLock lockWhenCondition:0 beforeDate:[NSDate dateWithTimeIntervalSinceNow:.25]]) {
BOOL returnValue = _shouldStartLoad;
[_shouldStartLoadLock unlock];
_shouldStartLoadLock = nil;
return returnValue;
} else {
RCTLogWarn(@"Did not receive response to shouldStartLoad in time, defaulting to YES");
return YES;
}
}
RCT_EXPORT_METHOD(startLoadWithResult:(BOOL)result lockIdentifier:(NSInteger)lockIdentifier)
{
if ([_shouldStartLoadLock tryLockWhenCondition:lockIdentifier]) {
_shouldStartLoad = result;
[_shouldStartLoadLock unlockWithCondition:0];
} else {
RCTLogWarn(@"startLoadWithResult invoked with invalid lockIdentifier: "
"got %zd, expected %zd", lockIdentifier, _shouldStartLoadLock.condition);
}
}
@end