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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FIRAuthWebView.h"
NS_ASSUME_NONNULL_BEGIN
@implementation FIRAuthWebView
- (instancetype)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
self.backgroundColor = [UIColor whiteColor];
[self initializeSubviews];
}
return self;
}
/** @fn initializeSubviews
@brief Initializes the subviews of this view.
*/
- (void)initializeSubviews {
UIWebView *webView = [self createWebView];
UIActivityIndicatorView *spinner = [self createSpinner];
// The order of the following controls z-order.
[self addSubview:webView];
[self addSubview:spinner];
[self layoutSubviews];
_webView = webView;
_spinner = spinner;
}
- (void)layoutSubviews {
CGFloat height = self.bounds.size.height;
CGFloat width = self.bounds.size.width;
_webView.frame = CGRectMake(0, 0, width, height);
_spinner.center = _webView.center;
}
/** @fn createWebView
@brief Creates a web view to be used by this view.
@return The newly created web view.
*/
- (UIWebView *)createWebView {
UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectZero];
// Trickery to make the web view not do weird things (like showing a black background when
// the prompt in the navigation bar animates changes.)
webView.opaque = NO;
webView.backgroundColor = [UIColor clearColor];
webView.scrollView.opaque = NO;
webView.scrollView.backgroundColor = [UIColor clearColor];
webView.scrollView.bounces = NO;
webView.scrollView.alwaysBounceVertical = NO;
webView.scrollView.alwaysBounceHorizontal = NO;
return webView;
}
/** @fn createSpinner
@brief Creates a spinner to be used by this view.
@return The newly created spinner.
*/
- (UIActivityIndicatorView *)createSpinner {
UIActivityIndicatorViewStyle spinnerStyle = UIActivityIndicatorViewStyleGray;
UIActivityIndicatorView *spinner =
[[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:spinnerStyle];
return spinner;
}
@end
NS_ASSUME_NONNULL_END
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