Split PackageListController partially for CyteKit.

4 files changed, 254 insertions, 0 deletions

diff --git a/CyteKit/CyteKit.h b/CyteKit/CyteKit.h
index 7f1df37..0d66439 100644
--- a/CyteKit/CyteKit.h
+++ b/CyteKit/CyteKit.h
@@ -24,6 +24,7 @@
 
 #include "CyteKit/Application.h"
 #include "CyteKit/CyteObject.h"
+#include "CyteKit/ListController.h"
 #include "CyteKit/NavigationController.h"
 #include "CyteKit/TableViewCell.h"
 #include "CyteKit/TabBarController.h"
diff --git a/CyteKit/ListController.h b/CyteKit/ListController.h
new file mode 100644
index 0000000..b9b8022
--- /dev/null
+++ b/CyteKit/ListController.h
@@ -0,0 +1,40 @@
+/* Cydia - iPhone UIKit Front-End for Debian APT
+ * Copyright (C) 2008-2015  Jay Freeman (saurik)
+*/
+
+/* GNU General Public License, Version 3 {{{ */
+/*
+ * Cydia is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ *
+ * Cydia is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Cydia.  If not, see <http://www.gnu.org/licenses/>.
+**/
+/* }}} */
+
+#ifndef CyteKit_ListController_H
+#define CyteKit_ListController_H
+
+#include <UIKit/UIKit.h>
+
+#include <CyteKit/ViewController.h>
+
+@interface CyteListController : CyteViewController
+
+- (bool) shouldYield;
+- (void) loadView;
+- (void) _reloadData;
+- (void) resetCursor;
+- (void) clearData;
+- (CGFloat) rowHeight;
+
+@end
+
+#endif//CyteKit_ListController_H
diff --git a/CyteKit/ListController.mm b/CyteKit/ListController.mm
new file mode 100644
index 0000000..d3c162e
--- /dev/null
+++ b/CyteKit/ListController.mm
@@ -0,0 +1,193 @@
+/* Cydia - iPhone UIKit Front-End for Debian APT
+ * Copyright (C) 2008-2015  Jay Freeman (saurik)
+*/
+
+/* GNU General Public License, Version 3 {{{ */
+/*
+ * Cydia is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ *
+ * Cydia is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Cydia.  If not, see <http://www.gnu.org/licenses/>.
+**/
+/* }}} */
+
+#include "CyteKit/UCPlatform.h"
+
+#include <Foundation/Foundation.h>
+#include <UIKit/UIKit.h>
+
+#include "CyteKit/ListController.h"
+#include "CyteKit/extern.h"
+
+#include "iPhonePrivate.h"
+#include <Menes/ObjectHandle.h>
+
+static CGFloat CYStatusBarHeight() {
+    CGSize size([[UIApplication sharedApplication] statusBarFrame].size);
+    return UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation]) ? size.height : size.width;
+}
+
+@implementation CyteListController {
+    _H<UITableView, 2> list_;
+}
+
+- (bool) shouldYield {
+    return false;
+}
+
+- (void) deselectWithAnimation:(BOOL)animated {
+    [list_ deselectRowAtIndexPath:[list_ indexPathForSelectedRow] animated:animated];
+}
+
+- (void) resizeForKeyboardBounds:(CGRect)bounds duration:(NSTimeInterval)duration curve:(UIViewAnimationCurve)curve {
+    CGRect base = [[self view] bounds];
+    base.size.height -= bounds.size.height;
+    base.origin = [list_ frame].origin;
+
+    [UIView beginAnimations:nil context:NULL];
+    [UIView setAnimationBeginsFromCurrentState:YES];
+    [UIView setAnimationCurve:curve];
+    [UIView setAnimationDuration:duration];
+    [list_ setFrame:base];
+    [UIView commitAnimations];
+}
+
+- (void) resizeForKeyboardBounds:(CGRect)bounds duration:(NSTimeInterval)duration {
+    [self resizeForKeyboardBounds:bounds duration:duration curve:UIViewAnimationCurveLinear];
+}
+
+- (void) resizeForKeyboardBounds:(CGRect)bounds {
+    [self resizeForKeyboardBounds:bounds duration:0];
+}
+
+- (void) getKeyboardCurve:(UIViewAnimationCurve *)curve duration:(NSTimeInterval *)duration forNotification:(NSNotification *)notification {
+    if (&UIKeyboardAnimationCurveUserInfoKey == NULL)
+        *curve = UIViewAnimationCurveEaseInOut;
+    else
+        [[[notification userInfo] objectForKey:UIKeyboardAnimationCurveUserInfoKey] getValue:curve];
+
+    if (&UIKeyboardAnimationDurationUserInfoKey == NULL)
+        *duration = 0.3;
+    else
+        [[[notification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] getValue:duration];
+}
+
+- (void) keyboardWillShow:(NSNotification *)notification {
+    CGRect bounds;
+    CGPoint center;
+    [[[notification userInfo] objectForKey:UIKeyboardBoundsUserInfoKey] getValue:&bounds];
+    [[[notification userInfo] objectForKey:UIKeyboardCenterEndUserInfoKey] getValue:&center];
+
+    NSTimeInterval duration;
+    UIViewAnimationCurve curve;
+    [self getKeyboardCurve:&curve duration:&duration forNotification:notification];
+
+    CGRect kbframe = CGRectMake(Retina(center.x - bounds.size.width / 2), Retina(center.y - bounds.size.height / 2), bounds.size.width, bounds.size.height);
+    UIViewController *base([self rootViewController]);
+    CGRect viewframe = [[base view] convertRect:[list_ frame] fromView:[list_ superview]];
+    CGRect intersection = CGRectIntersection(viewframe, kbframe);
+
+    if (kCFCoreFoundationVersionNumber < kCFCoreFoundationVersionNumber_iPhoneOS_3_0) // XXX: _UIApplicationLinkedOnOrAfter(4)
+        intersection.size.height += CYStatusBarHeight();
+
+    [self resizeForKeyboardBounds:intersection duration:duration curve:curve];
+}
+
+- (void) keyboardWillHide:(NSNotification *)notification {
+    NSTimeInterval duration;
+    UIViewAnimationCurve curve;
+    [self getKeyboardCurve:&curve duration:&duration forNotification:notification];
+
+    [self resizeForKeyboardBounds:CGRectZero duration:duration curve:curve];
+}
+
+- (void) viewWillAppear:(BOOL)animated {
+    [super viewWillAppear:animated];
+
+    [self resizeForKeyboardBounds:CGRectZero];
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
+}
+
+- (void) viewWillDisappear:(BOOL)animated {
+    [super viewWillDisappear:animated];
+
+    [self resizeForKeyboardBounds:CGRectZero];
+    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
+    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
+}
+
+- (void) viewDidAppear:(BOOL)animated {
+    [super viewDidAppear:animated];
+    [self deselectWithAnimation:animated];
+}
+
+- (void) releaseSubviews {
+    list_ = nil;
+    [super releaseSubviews];
+}
+
+- (CGFloat) rowHeight {
+    return 0;
+}
+
+- (void) updateHeight {
+    [list_ setRowHeight:[self rowHeight]];
+}
+
+- (void) loadView {
+    UIView *view([[[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]] autorelease]);
+    [view setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
+    [self setView:view];
+
+    list_ = [[[UITableView alloc] initWithFrame:[[self view] bounds] style:UITableViewStylePlain] autorelease];
+    [list_ setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
+    [view addSubview:list_];
+
+    // XXX: is 20 the most optimal number here?
+    [list_ setSectionIndexMinimumDisplayRowCount:20];
+
+    [list_ setDataSource:(id)self];
+    [list_ setDelegate:(id)self];
+
+    [self updateHeight];
+}
+
+- (void) _reloadData {
+    [self updateHeight];
+
+    [list_ setDataSource:(id)self];
+    [list_ reloadData];
+}
+
+- (void) reloadData {
+    [super reloadData];
+
+    if ([self shouldYield])
+        [self performSelector:@selector(_reloadData) withObject:nil afterDelay:0];
+    else
+        [self _reloadData];
+}
+
+- (void) resetCursor {
+    [list_ scrollRectToVisible:CGRectMake(0, 0, 1, 1) animated:NO];
+}
+
+- (void) clearData {
+    [self updateHeight];
+
+    [list_ setDataSource:nil];
+    [list_ reloadData];
+
+    [self resetCursor];
+}
+
+@end
diff --git a/CyteKit/extern.h b/CyteKit/extern.h
index 670f560..562fb26 100644
--- a/CyteKit/extern.h
+++ b/CyteKit/extern.h
@@ -35,4 +35,24 @@ bool CyteIsReachable(const char *name);
 
 void CyteInitialize(NSString *app, NSString *version);
 
+static inline double Retina(double value) {
+    value *= ScreenScale_;
+    value = round(value);
+    value /= ScreenScale_;
+    return value;
+}
+
+static inline CGRect Retina(CGRect value) {
+    value.origin.x *= ScreenScale_;
+    value.origin.y *= ScreenScale_;
+    value.size.width *= ScreenScale_;
+    value.size.height *= ScreenScale_;
+    value = CGRectIntegral(value);
+    value.origin.x /= ScreenScale_;
+    value.origin.y /= ScreenScale_;
+    value.size.width /= ScreenScale_;
+    value.size.height /= ScreenScale_;
+    return value;
+}
+
 #endif//CyteKit_extern_H