1 files changed, 187 insertions, 0 deletions
diff --git a/UICaboodle/RVBook.mm b/UICaboodle/RVBook.mm
new file mode 100644
index 0000000..5ac8b2e
--- /dev/null
+++ b/UICaboodle/RVBook.mm
@@ -0,0 +1,187 @@
+#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:1];
+        [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];
+
+    [navbar_ setAccessoryView:[page accessoryView] animate:animated goingBack: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];
+    [navbar_ setAccessoryView:[page accessoryView] animate:animated goingBack:YES];
+}
+
+- (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