delegate method leavesView:willTurnToPageAtIndex:

Ramarao90 · May 12, 2010 · 8f50243 · 8f50243
1 parent 19de1f0
commit 8f50243
Show file tree

Hide file tree

Showing 3 changed files with 9 additions and 1 deletion.
diff --git a/Classes/PDFExampleViewController.m b/Classes/PDFExampleViewController.m
@@ -34,7 +34,7 @@ - (void) displayPageNumber:(NSUInteger)pageNumber {
 
 #pragma mark  LeavesViewDelegate methods
 
-- (void) leavesView:(LeavesView *)leavesView didTurnToPageAtIndex:(NSUInteger)pageIndex {
+- (void) leavesView:(LeavesView *)leavesView willTurnToPageAtIndex:(NSUInteger)pageIndex {
 	[self displayPageNumber:pageIndex + 1];
 }
 

diff --git a/Leaves/LeavesView.h b/Leaves/LeavesView.h
@@ -63,6 +63,7 @@
 
 @optional
 
+- (void) leavesView:(LeavesView *)leavesView willTurnToPageAtIndex:(NSUInteger)pageIndex;
 - (void) leavesView:(LeavesView *)leavesView didTurnToPageAtIndex:(NSUInteger)pageIndex;
 
 @end

diff --git a/Leaves/LeavesView.m b/Leaves/LeavesView.m
@@ -169,6 +169,11 @@ - (void) setLayerFrames {
 	topPageOverlay.frame = topPage.bounds;
 }
 
+- (void) willTurnToPageAtIndex:(NSUInteger)index {
+	if ([delegate respondsToSelector:@selector(leavesView:willTurnToPageAtIndex:)])
+		[delegate leavesView:self willTurnToPageAtIndex:index];
+}
+
 - (void) didTurnToPageAtIndex:(NSUInteger)index {
 	if ([delegate respondsToSelector:@selector(leavesView:didTurnToPageAtIndex:)])
 		[delegate leavesView:self didTurnToPageAtIndex:index];
@@ -294,6 +299,7 @@ - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
 	[CATransaction begin];
 	float duration;
 	if ((dragged && self.leafEdge < 0.5) || (!dragged && [self touchedNextPage])) {
+		[self willTurnToPageAtIndex:currentPageIndex+1];
 		self.leafEdge = 0;
 		duration = leafEdge;
 		interactionLocked = YES;
@@ -304,6 +310,7 @@ - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
 				   afterDelay:duration + 0.25];
 	}
 	else {
+		[self willTurnToPageAtIndex:currentPageIndex];
 		self.leafEdge = 1.0;
 		duration = 1 - leafEdge;
 		interactionLocked = YES;