// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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//
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// You are hereby granted a non-exclusive, worldwide, royalty-free license to use,
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// copy, modify, and distribute this software in source code or binary form for use
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// in connection with the web services and APIs provided by Facebook.
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//
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// As with any software that integrates with the Facebook platform, your use of
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// this software is subject to the Facebook Developer Principles and Policies
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// [http://developers.facebook.com/policy/]. This copyright notice shall be
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// included in all copies or substantial portions of the software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#import <UIKit/UIKit.h>
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#import <FBSDKCoreKit/FBSDKButton.h>
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#import <FBSDKLoginKit/FBSDKLoginManager.h>
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#import "FBSDKTooltipView.h"
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NS_ASSUME_NONNULL_BEGIN
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@protocol FBSDKLoginButtonDelegate;
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/**
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NS_ENUM(NSUInteger, FBSDKLoginButtonTooltipBehavior)
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Indicates the desired login tooltip behavior.
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*/
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typedef NS_ENUM(NSUInteger, FBSDKLoginButtonTooltipBehavior)
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{
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/** The default behavior. The tooltip will only be displayed if
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the app is eligible (determined by possible server round trip) */
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FBSDKLoginButtonTooltipBehaviorAutomatic = 0,
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/** Force display of the tooltip (typically for UI testing) */
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FBSDKLoginButtonTooltipBehaviorForceDisplay = 1,
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/** Force disable. In this case you can still exert more refined
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control by manually constructing a `FBSDKLoginTooltipView` instance. */
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FBSDKLoginButtonTooltipBehaviorDisable = 2
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} NS_SWIFT_NAME(FBLoginButton.TooltipBehavior);
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/**
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A button that initiates a log in or log out flow upon tapping.
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`FBSDKLoginButton` works with `[FBSDKAccessToken currentAccessToken]` to
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determine what to display, and automatically starts authentication when tapped (i.e.,
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you do not need to manually subscribe action targets).
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Like `FBSDKLoginManager`, you should make sure your app delegate is connected to
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`FBSDKApplicationDelegate` in order for the button's delegate to receive messages.
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`FBSDKLoginButton` has a fixed height of @c 30 pixels, but you may change the width. `initWithFrame:CGRectZero`
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will size the button to its minimum frame.
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*/
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NS_SWIFT_NAME(FBLoginButton)
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@interface FBSDKLoginButton : FBSDKButton
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/**
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The default audience to use, if publish permissions are requested at login time.
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*/
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@property (assign, nonatomic) FBSDKDefaultAudience defaultAudience;
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/**
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Gets or sets the delegate.
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*/
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@property (weak, nonatomic) IBOutlet id<FBSDKLoginButtonDelegate> delegate;
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/**
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Gets or sets the login behavior to use
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*/
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@property (assign, nonatomic) FBSDKLoginBehavior loginBehavior;
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/*!
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@abstract The permissions to request.
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@discussion To provide the best experience, you should minimize the number of permissions you request, and only ask for them when needed.
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For example, do not ask for "user_location" until you the information is actually used by the app.
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Note this is converted to NSSet and is only
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an NSArray for the convenience of literal syntax.
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See [the permissions guide]( https://developers.facebook.com/docs/facebook-login/permissions/ ) for more details.
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*/
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@property (copy, nonatomic) NSArray<NSString *> *permissions;
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/**
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Gets or sets the desired tooltip behavior.
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*/
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@property (assign, nonatomic) FBSDKLoginButtonTooltipBehavior tooltipBehavior;
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/**
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Gets or sets the desired tooltip color style.
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*/
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@property (assign, nonatomic) FBSDKTooltipColorStyle tooltipColorStyle;
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@end
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/**
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@protocol
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A delegate for `FBSDKLoginButton`
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*/
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NS_SWIFT_NAME(LoginButtonDelegate)
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@protocol FBSDKLoginButtonDelegate <NSObject>
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@required
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/**
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Sent to the delegate when the button was used to login.
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@param loginButton the sender
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@param result The results of the login
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@param error The error (if any) from the login
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*/
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- (void)loginButton:(FBSDKLoginButton *)loginButton
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didCompleteWithResult:(nullable FBSDKLoginManagerLoginResult *)result
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error:(nullable NSError *)error;
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/**
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Sent to the delegate when the button was used to logout.
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@param loginButton The button that was clicked.
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*/
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- (void)loginButtonDidLogOut:(FBSDKLoginButton *)loginButton;
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@optional
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/**
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Sent to the delegate when the button is about to login.
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@param loginButton the sender
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@return YES if the login should be allowed to proceed, NO otherwise
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*/
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- (BOOL)loginButtonWillLogin:(FBSDKLoginButton *)loginButton;
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@end
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NS_ASSUME_NONNULL_END
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