Original 5.40

1 files changed, 402 insertions, 0 deletions

diff --git a/OSX/SaverListController.m b/OSX/SaverListController.m
new file mode 100644
index 0000000..9377275
--- /dev/null
+++ b/OSX/SaverListController.m
@@ -0,0 +1,402 @@
+/* xscreensaver, Copyright (c) 2012-2014 Jamie Zawinski <jwz@jwz.org>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation.  No representations are made about the suitability of this
+ * software for any purpose.  It is provided "as is" without express or 
+ * implied warranty.
+ *
+ * This implements the top-level screen-saver selection list in the iOS app.
+ */
+
+#ifdef USE_IPHONE  // whole file
+
+
+#import "SaverListController.h"
+#import "SaverRunner.h"
+#import "yarandom.h"
+#import "version.h"
+
+#undef countof
+#define countof(x) (sizeof((x))/sizeof((*x)))
+
+
+@implementation SaverListController
+
+- (void) titleTapped:(id) sender
+{
+  [[UIApplication sharedApplication]
+    openURL:[NSURL URLWithString:@"https://www.jwz.org/xscreensaver/"]];
+}
+
+
+- (void)makeTitleBar
+{
+  // Extract the version number and release date from the version string.
+  // Here's an area where I kind of wish I had "Two Problems".
+  // I guess I could add custom key to the Info.plist for this.
+
+  NSArray *a = [[NSString stringWithCString: screensaver_id
+                          encoding:NSASCIIStringEncoding]
+                 componentsSeparatedByCharactersInSet:
+                   [NSCharacterSet
+                     characterSetWithCharactersInString:@" ()-"]];
+  NSString *vers = [a objectAtIndex: 3];
+  NSString *year = [a objectAtIndex: 7];
+
+  NSString *line1 = [@"XScreenSaver " stringByAppendingString: vers];
+  NSString *line2 = [@"\u00A9 " stringByAppendingString:
+                        [year stringByAppendingString:
+                                @" Jamie Zawinski <jwz@jwz.org>"]];
+
+  UIView *v = [[UIView alloc] initWithFrame:CGRectZero];
+
+  // The "go to web page" button on the right
+
+  UIImage *img = [UIImage imageWithContentsOfFile:
+                            [[[NSBundle mainBundle] bundlePath]
+                              stringByAppendingPathComponent:
+                                @"iSaverRunner57t.png"]];
+  UIButton *button = [[UIButton alloc] init];
+  [button setFrame: CGRectMake(0, 0, img.size.width/2, img.size.height/2)];
+  [button setBackgroundImage:img forState:UIControlStateNormal];
+  [button addTarget:self
+          action:@selector(titleTapped:)
+          forControlEvents:UIControlEventTouchUpInside];
+  UIBarButtonItem *bi = [[UIBarButtonItem alloc] initWithCustomView: button];
+  self.navigationItem.rightBarButtonItem = bi;
+  [bi release];
+  [button release];
+
+  // The title bar
+
+  UILabel *label1 = [[UILabel alloc] initWithFrame:CGRectZero];
+  UILabel *label2 = [[UILabel alloc] initWithFrame:CGRectZero];
+  [label1 setText: line1];
+  [label2 setText: line2];
+  [label1 setBackgroundColor:[UIColor clearColor]];
+  [label2 setBackgroundColor:[UIColor clearColor]];
+
+  [label1 setFont: [UIFont boldSystemFontOfSize: 17]];
+  [label2 setFont: [UIFont systemFontOfSize: 12]];
+  [label1 sizeToFit];
+  [label2 sizeToFit];
+
+  CGRect r1 = [label1 frame];
+  CGRect r2 = [label2 frame];
+  CGRect r3 = r2;
+
+  CGRect win = [self view].frame;
+  if (win.size.width > 414 && win.size.height > 414) {		// iPad
+    [label1 setTextAlignment: NSTextAlignmentLeft];
+    [label2 setTextAlignment: NSTextAlignmentRight];
+    label2.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;
+    r3.size.width = win.size.width;
+    r1 = r3;
+    r1.origin.x   += 6;
+    r1.size.width -= 12;
+    r2 = r1;
+
+  } else {							// iPhone
+    r3.size.width = win.size.width; // force it to be flush-left
+    [label1 setTextAlignment: NSTextAlignmentLeft];
+    [label2 setTextAlignment: NSTextAlignmentLeft];
+    r1.origin.y = -1;    // make it fit in landscape
+    r2.origin.y = r1.origin.y + r1.size.height - 2;
+    r3.size.height = r1.size.height + r2.size.height;
+  }
+  v.autoresizingMask = UIViewAutoresizingFlexibleWidth;
+  [label1 setFrame:r1];
+  [label2 setFrame:r2];
+  [v setFrame:r3];
+
+  [v addSubview:label1];
+  [v addSubview:label2];
+
+  // Default opacity looks bad.
+  [v setBackgroundColor:[[v backgroundColor] colorWithAlphaComponent:1]];
+
+  self.navigationItem.titleView = v;
+
+  win.origin.x = 0;
+  win.origin.y = 0;
+  win.size.height = 44; // #### This cannot possibly be right.
+  UISearchBar *search = [[UISearchBar alloc] initWithFrame:win];
+  search.delegate = self;
+  search.placeholder = @"Search...";
+  self.tableView.tableHeaderView = search;
+
+  // Dismiss the search field's keyboard as soon as we scroll.
+# ifdef __IPHONE_7_0
+  if ([self.tableView respondsToSelector:@selector(keyboardDismissMode)])
+    [self.tableView setKeyboardDismissMode:
+           UIScrollViewKeyboardDismissModeOnDrag];
+# endif
+}
+
+
+- (id)initWithNames:(NSArray *)_names descriptions:(NSDictionary *)_descs;
+{
+  self = [self init];
+  if (! self) return 0;
+  [self reload:_names descriptions:_descs search:nil];
+  [self makeTitleBar];
+  return self;
+}
+
+
+- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tv
+{
+  int n = countof(list_by_letter);
+  NSMutableArray *a = [NSMutableArray arrayWithCapacity: n];
+  for (int i = 0; i < n; i++) {
+    if ([list_by_letter[i] count] == 0)  // Omit empty letter sections.
+      continue;
+    char s[2];
+    s[0] = (i == 'Z'-'A'+1 ? '#' : i+'A');
+    s[1] = 0;
+    [a addObject: [NSString stringWithCString:s
+                            encoding:NSASCIIStringEncoding]];
+  }
+  return a;
+}
+
+
+/* Called when text is typed into the top search bar.
+ */
+- (void)searchBar:(UISearchBar *)bar textDidChange:(NSString *)txt
+{
+  [self reload:names descriptions:descriptions search:txt];
+}
+
+
+- (void) reload:(NSArray *)_names descriptions:(NSDictionary *)_descs
+         search:search
+{
+  if (names != _names) {
+    if (names) [names release];
+    names = [_names retain];
+  }
+  if (_descs != descriptions) {
+    if (descriptions) [descriptions release];
+    descriptions = [_descs retain];
+  }
+
+  int n = countof(list_by_letter);
+  for (int i = 0; i < n; i++) {
+    list_by_letter[i] = [[NSMutableArray alloc] init];
+  }
+
+  for (NSString *name in names) {
+
+    // If we're searching, omit any items that don't have a match in the
+    // title or description.
+    //
+    BOOL matchp = (!search || [search length] == 0);
+    if (! matchp) {
+      matchp = ([name rangeOfString:search
+                            options:NSCaseInsensitiveSearch].location
+                != NSNotFound);
+    }
+    if (! matchp) {
+      NSString *desc = [descriptions objectForKey:name];
+      matchp = ([desc rangeOfString:search
+                            options:NSCaseInsensitiveSearch].location
+                != NSNotFound);
+    }
+    if (! matchp)
+      continue;
+
+    int index = ([name cStringUsingEncoding: NSASCIIStringEncoding])[0];
+    if (index >= 'a' && index <= 'z')
+      index -= 'a'-'A';
+    if (index >= 'A' && index <= 'Z')
+      index -= 'A';
+    else
+      index = n-1;
+    [list_by_letter[index] addObject: name];
+  }
+
+  active_section_count = 0;
+  letter_sections = [[[NSMutableArray alloc] init] retain];
+  section_titles = [[[NSMutableArray alloc] init] retain];
+  for (int i = 0; i < n; i++) {
+    if ([list_by_letter[i] count] > 0) {
+      active_section_count++;
+      [letter_sections addObject: list_by_letter[i]];
+      if (i <= 'Z'-'A')
+        [section_titles addObject: [NSString stringWithFormat: @"%c", i+'A']];
+      else
+        [section_titles addObject: @"#"];
+    }
+  }
+  [self.tableView reloadData];
+}
+
+
+- (NSString *)tableView:(UITableView *)tv
+              titleForHeaderInSection:(NSInteger)section
+{
+  return [section_titles objectAtIndex: section];
+}
+
+- (NSInteger)numberOfSectionsInTableView:(UITableView *)tv
+{
+  return active_section_count;
+}
+
+
+- (NSInteger)tableView:(UITableView *)tv
+                       numberOfRowsInSection:(NSInteger)section
+{
+  return [[letter_sections objectAtIndex: section] count];
+}
+
+- (NSInteger)tableView:(UITableView *)tv
+             sectionForSectionIndexTitle:(NSString *)title
+               atIndex:(NSInteger) index
+{
+  int i = 0;
+  for (NSString *sectionTitle in section_titles) {
+    if ([sectionTitle isEqualToString: title])
+      return i;
+    i++;
+  }
+  return -1;
+}
+
+
+- (UITableViewCell *)tableView:(UITableView *)tv
+                     cellForRowAtIndexPath:(NSIndexPath *)ip
+{
+  NSString *title = 
+    [[letter_sections objectAtIndex: [ip indexAtPosition: 0]]
+      objectAtIndex: [ip indexAtPosition: 1]];
+  NSString *desc = [descriptions objectForKey:title];
+
+  NSString *id = @"Cell";
+  UITableViewCell *cell = [tv dequeueReusableCellWithIdentifier:id];
+  if (!cell)
+    cell = [[[UITableViewCell alloc]
+                initWithStyle: UITableViewCellStyleSubtitle
+              reuseIdentifier: id]
+             autorelease];
+
+  cell.textLabel.text = title;
+  cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
+  cell.detailTextLabel.text = desc;
+
+  return cell;
+}
+
+
+/* Selecting a row launches the saver.
+ */
+- (void)tableView:(UITableView *)tv
+        didSelectRowAtIndexPath:(NSIndexPath *)ip
+{
+  UITableViewCell *cell = [tv cellForRowAtIndexPath: ip];
+  SaverRunner *s = 
+    (SaverRunner *) [[UIApplication sharedApplication] delegate];
+  if (! s) return;
+
+  // Dismiss the search field's keyboard before launching a saver.
+  [self.tableView.tableHeaderView resignFirstResponder];
+
+  NSAssert ([s isKindOfClass:[SaverRunner class]], @"not a SaverRunner");
+  [s loadSaver: cell.textLabel.text];
+}
+
+/* Selecting a row's Disclosure Button opens the preferences.
+ */
+- (void)tableView:(UITableView *)tv
+        accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)ip
+{
+  UITableViewCell *cell = [tv cellForRowAtIndexPath: ip];
+  SaverRunner *s = 
+    (SaverRunner *) [[UIApplication sharedApplication] delegate];
+  if (! s) return;
+  NSAssert ([s isKindOfClass:[SaverRunner class]], @"not a SaverRunner");
+  [s openPreferences: cell.textLabel.text];
+}
+
+
+- (void) scrollTo: (NSString *) name
+{
+  int i = 0;
+  int j = 0;
+  Bool ok = NO;
+  for (NSArray *a in letter_sections) {
+    j = 0;
+    for (NSString *n in a) {
+      ok = [n isEqualToString: name];
+      if (ok) goto DONE;
+      j++;
+    }
+    i++;
+  }
+ DONE:
+  if (ok) {
+    NSIndexPath *ip = [NSIndexPath indexPathForRow: j inSection: i];
+    [self.tableView selectRowAtIndexPath:ip
+                    animated:NO
+                    scrollPosition: UITableViewScrollPositionMiddle];
+  }
+}
+
+
+/* We need this to respond to "shake" gestures
+ */
+- (BOOL)canBecomeFirstResponder
+{
+  return YES;
+}
+
+- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
+{
+}
+
+- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event
+{
+}
+
+
+/* Shake means load a random screen saver.
+ */
+- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
+{
+  if (motion != UIEventSubtypeMotionShake)
+    return;
+  NSMutableArray *a = [NSMutableArray arrayWithCapacity: 200];
+  for (NSArray *sec in letter_sections)
+    for (NSString *s in sec)
+      [a addObject: s];
+  int n = [a count];
+  if (! n) return;
+  NSString *which = [a objectAtIndex: (random() % n)];
+
+  SaverRunner *s = 
+    (SaverRunner *) [[UIApplication sharedApplication] delegate];
+  if (! s) return;
+  NSAssert ([s isKindOfClass:[SaverRunner class]], @"not a SaverRunner");
+  [self scrollTo: which];
+  [s loadSaver: which];
+}
+
+
+- (void)dealloc
+{
+  for (int i = 0; i < countof(list_by_letter); i++)
+    [list_by_letter[i] release];
+  [letter_sections release];
+  [section_titles release];
+  [descriptions release];
+  [super dealloc];
+}
+
+@end
+
+
+#endif // USE_IPHONE -- whole file