| // |
| // Created by Jesse Squires |
| // http://www.jessesquires.com |
| // |
| // |
| // Documentation |
| // http://cocoadocs.org/docsets/JSQMessagesViewController |
| // |
| // |
| // GitHub |
| // https://github.com/jessesquires/JSQMessagesViewController |
| // |
| // |
| // License |
| // Copyright (c) 2014 Jesse Squires |
| // Released under an MIT license: http://opensource.org/licenses/MIT |
| // |
| |
| #import <Foundation/Foundation.h> |
| #import <UIKit/UIKit.h> |
| |
| @class JSQMessagesCollectionViewFlowLayout; |
| @protocol JSQMessageData; |
| |
| /** |
| * The `JSQMessagesBubbleSizeCalculating` protocol defines the common interface through which |
| * an object provides layout information to an instance of `JSQMessagesCollectionViewFlowLayout`. |
| * |
| * A concrete class that conforms to this protocol is provided in the library. |
| * See `JSQMessagesBubbleSizeCalculator`. |
| */ |
| @protocol JSQMessagesBubbleSizeCalculating <NSObject> |
| |
| /** |
| * Computes and returns the size of the `messageBubbleImageView` property |
| * of a `JSQMessagesCollectionViewCell` for the specified messageData at indexPath. |
| * |
| * @param messageData A message data object. |
| * @param indexPath The index path at which messageData is located. |
| * @param layout The layout object asking for this information. |
| * |
| * @return A sizes that specifies the required dimensions to display the entire message contents. |
| * Note, this is *not* the entire cell, but only its message bubble. |
| */ |
| - (CGSize)messageBubbleSizeForMessageData:(id<JSQMessageData>)messageData |
| atIndexPath:(NSIndexPath *)indexPath |
| withLayout:(JSQMessagesCollectionViewFlowLayout *)layout; |
| |
| /** |
| * Notifies the receiver that the layout will be reset. |
| * Use this method to clear any cached layout information, if necessary. |
| * |
| * @param layout The layout object notifying the receiver. |
| */ |
| - (void)prepareForResettingLayout:(JSQMessagesCollectionViewFlowLayout *)layout; |
| |
| @end |
