From 8e3b68d4629fe84dd0cb0ee08c45d1037e8a0d3a Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Wed, 23 Feb 2011 02:49:30 -0800
Subject: [PATCH] Add cydia.scrollToBottom().

---
 MobileCydia.mm            |  6 ++++++
 UICaboodle/BrowserView.mm | 11 +++++++++++
 2 files changed, 17 insertions(+)

diff --git a/MobileCydia.mm b/MobileCydia.mm
index 51843a76..948bb60b 100644
--- a/MobileCydia.mm
+++ b/MobileCydia.mm
@@ -4001,6 +4001,8 @@ static NSString *Warning_;
         return @"refreshSources";
     else if (selector == @selector(removeButton))
         return @"removeButton";
+    else if (selector == @selector(scrollToBottom:))
+        return @"scrollToBottom";
     else if (selector == @selector(setButtonImage:withStyle:toFunction:))
         return @"setButtonImage";
     else if (selector == @selector(setButtonTitle:withStyle:toFunction:))
@@ -4184,6 +4186,10 @@ static NSString *Warning_;
     [indirect_ setPopupHook:function];
 }
 
+- (void) scrollToBottom:(NSNumber *)animated {
+    [indirect_ performSelectorOnMainThread:@selector(scrollToBottomAnimated:) withObject:animated waitUntilDone:NO];
+}
+
 - (void) setViewportWidth:(float)width {
     [indirect_ setViewportWidthOnMainThread:width];
 }
diff --git a/UICaboodle/BrowserView.mm b/UICaboodle/BrowserView.mm
index 07a92eec..d5116cfd 100644
--- a/UICaboodle/BrowserView.mm
+++ b/UICaboodle/BrowserView.mm
@@ -601,6 +601,17 @@ static void $UIWebViewWebViewDelegate$webViewClose$(UIWebViewWebViewDelegate *se
         closer_ = [function retain];
 }
 
+- (void) scrollToBottomAnimated:(NSNumber *)animated {
+    CGSize size([scroller_ contentSize]);
+    CGPoint offset([scroller_ contentOffset]);
+    CGRect frame([scroller_ frame]);
+
+    if (size.height - offset.y < frame.size.height + 20.f) {
+        CGRect rect = {{0, size.height-1}, {size.width, 1}};
+        [scroller_ scrollRectToVisible:rect animated:[animated boolValue]];
+    }
+}
+
 - (void) _setViewportWidth {
     [[webview_ _documentView] setViewportSize:CGSizeMake(width_, UIWebViewGrowsAndShrinksToFitHeight) forDocumentTypes:0x10];
 }
-- 
2.45.2