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#import "RVBook.h"
#import <UIKit/UINavigationBar.h>
#import <UIKit/UINavigationItem.h>
#import <UIKit/UITransitionView.h>
#import <UIKit/UIView-Geometry.h>
#import <UIKit/UIView-Hierarchy.h>
#import "RVPage.h"
@implementation RVBook
- (void) dealloc {
[navbar_ setDelegate:nil];
[pages_ release];
[navbar_ release];
[transition_ release];
[super dealloc];
}
- (void) navigationBar:(UINavigationBar *)navbar buttonClicked:(int)button {
_assert([pages_ count] != 0);
RVPage *page = [pages_ lastObject];
switch (button) {
case 0: [page _rightButtonClicked]; break;
case 1: [page _leftButtonClicked]; break;
}
}
- (void) navigationBar:(UINavigationBar *)navbar poppedItem:(UINavigationItem *)item {
_assert([pages_ count] != 0);
if (!resetting_)
[[pages_ lastObject] setPageActive:NO];
[pages_ removeLastObject];
if (!resetting_)
[self resetViewAnimated:YES toPage:[pages_ lastObject]];
}
- (id) initWithFrame:(CGRect)frame {
if ((self = [super initWithFrame:frame]) != nil) {
pages_ = [[NSMutableArray arrayWithCapacity:4] retain];
struct CGRect bounds = [self bounds];
CGSize navsize = [UINavigationBar defaultSizeWithPrompt];
CGRect navrect = {{0, 0}, navsize};
navbar_ = [[UINavigationBar alloc] initWithFrame:navrect];
[self addSubview:navbar_];
[navbar_ setBarStyle:0];
[navbar_ setDelegate:self];
[navbar_ setPrompt:@""];
transition_ = [[UITransitionView alloc] initWithFrame:CGRectMake(
bounds.origin.x, bounds.origin.y + navsize.height, bounds.size.width, bounds.size.height - navsize.height
)];
[self addSubview:transition_];
} return self;
}
- (void) setDelegate:(id)delegate {
delegate_ = delegate;
}
- (void) setPage:(RVPage *)page {
if ([pages_ count] != 0)
[[pages_ lastObject] setPageActive:NO];
[navbar_ disableAnimation];
resetting_ = true;
for (unsigned i(0), pages([pages_ count]); i != pages; ++i)
[navbar_ popNavigationItem];
resetting_ = false;
[self pushPage:page];
[navbar_ enableAnimation];
}
- (void) pushPage:(RVPage *)page {
if ([pages_ count] != 0)
[[pages_ lastObject] setPageActive:NO];
NSString *title = [self getTitleForPage:page];
NSString *backButtonTitle = [page backButtonTitle];
if (backButtonTitle == nil)
backButtonTitle = title;
UINavigationItem *navitem = [[[UINavigationItem alloc] initWithTitle:title] autorelease];
[navitem setBackButtonTitle:backButtonTitle];
[navbar_ pushNavigationItem:navitem];
BOOL animated = [pages_ count] == 0 ? NO : YES;
[transition_ transition:(animated ? 1 : 0) toView:page];
[page setPageActive:YES];
[pages_ addObject:page];
[self reloadButtonsForPage:page];
if ([navbar_ respondsToSelector:@selector(setAccessoryView:animate:goingBack:)])
[navbar_ setAccessoryView:[page accessoryView] animate:animated goingBack:NO];
else
[navbar_ setAccessoryView:[page accessoryView] animate:animated removeOnPop:NO];
}
- (void) popPages:(unsigned)pages {
if (pages == 0)
return;
[[pages_ lastObject] setPageActive:NO];
resetting_ = true;
for (unsigned i(0); i != pages; ++i)
[navbar_ popNavigationItem];
resetting_ = false;
[self resetViewAnimated:YES toPage:[pages_ lastObject]];
}
- (void) setPrompt:(NSString *)prompt {
[navbar_ setPrompt:prompt];
}
- (void) resetViewAnimated:(BOOL)animated {
resetting_ = true;
if ([pages_ count] > 1) {
[navbar_ disableAnimation];
while ([pages_ count] != (animated ? 2 : 1))
[navbar_ popNavigationItem];
[navbar_ enableAnimation];
if (animated)
[navbar_ popNavigationItem];
}
resetting_ = false;
[self resetViewAnimated:animated toPage:[pages_ lastObject]];
}
- (void) resetViewAnimated:(BOOL)animated toPage:(RVPage *)page {
[page resetViewAnimated:animated];
[transition_ transition:(animated ? 2 : 0) toView:page];
[page setPageActive:YES];
[self reloadButtonsForPage:page];
if ([navbar_ respondsToSelector:@selector(setAccessoryView:animate:goingBack:)])
[navbar_ setAccessoryView:[page accessoryView] animate:animated goingBack:YES];
else
[navbar_ setAccessoryView:[page accessoryView] animate:animated removeOnPop:NO];
}
- (void) setTitle:(NSString *)title forPage:(RVPage *)page {
if ([pages_ count] == 0 || page != [pages_ lastObject])
return;
UINavigationItem *navitem = [navbar_ topItem];
[navitem setTitle:title];
}
- (void) setBackButtonTitle:(NSString *)title forPage:(RVPage *)page {
if ([pages_ count] == 0 || page != [pages_ lastObject])
return;
UINavigationItem *navitem = [navbar_ topItem];
[navitem setBackButtonTitle:title];
}
- (void) reloadButtonsForPage:(RVPage *)page {
if ([pages_ count] == 0 || page != [pages_ lastObject])
return;
NSString *leftButtonTitle([pages_ count] == 1 ? [page leftButtonTitle] : nil);
[navbar_ showButtonsWithLeftTitle:leftButtonTitle rightTitle:[page rightButtonTitle]];
}
- (NSString *) getTitleForPage:(RVPage *)page {
return [page title];
}
- (void) reloadData {
for (int i(0), e([pages_ count]); i != e; ++i) {
RVPage *page([pages_ objectAtIndex:(e - i - 1)]);
[page reloadData];
}
}
- (CGRect) pageBounds {
return [transition_ bounds];
}
@end
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