Move a bunch of clearly shared logic into CyteKit.

1 files changed, 26 insertions, 0 deletions

diff --git a/CyteKit/WebView.mm b/CyteKit/WebView.mm
index 3711587..9e0cbea 100644
--- a/CyteKit/WebView.mm
+++ b/CyteKit/WebView.mm
@@ -417,3 +417,29 @@ __attribute__((__constructor__)) static void $() {
         class_addMethod($UIWebViewWebViewDelegate, @selector(_clearUIWebView), (IMP) &$UIWebViewWebViewDelegate$_clearUIWebView, "v8@0:4");
     }
 }
+
+@implementation UIWebDocumentView (Cydia)
+
+- (void) _setScrollerOffset:(CGPoint)offset {
+    UIScroller *scroller([self _scroller]);
+
+    CGSize size([scroller contentSize]);
+    CGSize bounds([scroller bounds].size);
+
+    CGPoint max;
+    max.x = size.width - bounds.width;
+    max.y = size.height - bounds.height;
+
+    // wtf Apple?!
+    if (max.x < 0)
+        max.x = 0;
+    if (max.y < 0)
+        max.y = 0;
+
+    offset.x = offset.x < 0 ? 0 : offset.x > max.x ? max.x : offset.x;
+    offset.y = offset.y < 0 ? 0 : offset.y > max.y ? max.y : offset.y;
+
+    [scroller setOffset:offset];
+}
+
+@end