//
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// MWPhotoBrowser_Private.h
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// MWPhotoBrowser
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//
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// Created by Michael Waterfall on 08/10/2013.
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//
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//
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#import <UIKit/UIKit.h>
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#import "MBProgressHUD.h"
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#import <MediaPlayer/MediaPlayer.h>
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#import "MWGridViewController.h"
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#import "MWZoomingScrollView.h"
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// Declare private methods of browser
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@interface MWPhotoBrowser () {
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// Data
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NSUInteger _photoCount;
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NSMutableArray *_photos;
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NSMutableArray *_thumbPhotos;
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NSArray *_fixedPhotosArray; // Provided via init
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// Views
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UIScrollView *_pagingScrollView;
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// Paging & layout
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NSMutableSet *_visiblePages, *_recycledPages;
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NSUInteger _currentPageIndex;
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NSUInteger _previousPageIndex;
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CGRect _previousLayoutBounds;
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NSUInteger _pageIndexBeforeRotation;
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// Navigation & controls
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UIToolbar *_toolbar;
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NSTimer *_controlVisibilityTimer;
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UIBarButtonItem *_previousButton, *_nextButton, *_actionButton, *_doneButton;
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MBProgressHUD *_progressHUD;
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// Grid
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MWGridViewController *_gridController;
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UIBarButtonItem *_gridPreviousLeftNavItem;
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UIBarButtonItem *_gridPreviousRightNavItem;
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// Appearance
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BOOL _previousNavBarHidden;
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BOOL _previousNavBarTranslucent;
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UIBarStyle _previousNavBarStyle;
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UIStatusBarStyle _previousStatusBarStyle;
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UIColor *_previousNavBarTintColor;
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UIColor *_previousNavBarBarTintColor;
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UIBarButtonItem *_previousViewControllerBackButton;
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UIImage *_previousNavigationBarBackgroundImageDefault;
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UIImage *_previousNavigationBarBackgroundImageLandscapePhone;
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// Video
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MPMoviePlayerViewController *_currentVideoPlayerViewController;
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NSUInteger _currentVideoIndex;
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UIActivityIndicatorView *_currentVideoLoadingIndicator;
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// Misc
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BOOL _hasBelongedToViewController;
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BOOL _isVCBasedStatusBarAppearance;
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BOOL _statusBarShouldBeHidden;
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BOOL _displayActionButton;
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BOOL _leaveStatusBarAlone;
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BOOL _performingLayout;
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BOOL _rotating;
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BOOL _viewIsActive; // active as in it's in the view heirarchy
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BOOL _didSavePreviousStateOfNavBar;
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BOOL _skipNextPagingScrollViewPositioning;
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BOOL _viewHasAppearedInitially;
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CGPoint _currentGridContentOffset;
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}
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// Properties
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@property (nonatomic) UIActivityViewController *activityViewController;
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// Layout
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- (void)layoutVisiblePages;
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- (void)performLayout;
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- (BOOL)presentingViewControllerPrefersStatusBarHidden;
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// Nav Bar Appearance
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- (void)setNavBarAppearance:(BOOL)animated;
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- (void)storePreviousNavBarAppearance;
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- (void)restorePreviousNavBarAppearance:(BOOL)animated;
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// Paging
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- (void)tilePages;
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- (BOOL)isDisplayingPageForIndex:(NSUInteger)index;
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- (MWZoomingScrollView *)pageDisplayedAtIndex:(NSUInteger)index;
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- (MWZoomingScrollView *)pageDisplayingPhoto:(id<MWPhoto>)photo;
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- (MWZoomingScrollView *)dequeueRecycledPage;
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- (void)configurePage:(MWZoomingScrollView *)page forIndex:(NSUInteger)index;
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- (void)didStartViewingPageAtIndex:(NSUInteger)index;
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// Frames
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- (CGRect)frameForPagingScrollView;
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- (CGRect)frameForPageAtIndex:(NSUInteger)index;
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- (CGSize)contentSizeForPagingScrollView;
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- (CGPoint)contentOffsetForPageAtIndex:(NSUInteger)index;
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- (CGRect)frameForToolbarAtOrientation:(UIInterfaceOrientation)orientation;
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- (CGRect)frameForCaptionView:(MWCaptionView *)captionView atIndex:(NSUInteger)index;
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- (CGRect)frameForSelectedButton:(UIButton *)selectedButton atIndex:(NSUInteger)index;
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// Navigation
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- (void)updateNavigation;
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- (void)jumpToPageAtIndex:(NSUInteger)index animated:(BOOL)animated;
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- (void)gotoPreviousPage;
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- (void)gotoNextPage;
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// Grid
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- (void)showGrid:(BOOL)animated;
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- (void)hideGrid;
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// Controls
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- (void)cancelControlHiding;
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- (void)hideControlsAfterDelay;
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- (void)setControlsHidden:(BOOL)hidden animated:(BOOL)animated permanent:(BOOL)permanent;
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- (void)toggleControls;
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- (BOOL)areControlsHidden;
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// Data
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- (NSUInteger)numberOfPhotos;
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- (id<MWPhoto>)photoAtIndex:(NSUInteger)index;
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- (id<MWPhoto>)thumbPhotoAtIndex:(NSUInteger)index;
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- (UIImage *)imageForPhoto:(id<MWPhoto>)photo;
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- (BOOL)photoIsSelectedAtIndex:(NSUInteger)index;
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- (void)setPhotoSelected:(BOOL)selected atIndex:(NSUInteger)index;
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- (void)loadAdjacentPhotosIfNecessary:(id<MWPhoto>)photo;
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- (void)releaseAllUnderlyingPhotos:(BOOL)preserveCurrent;
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@end
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