├── .gitignore
├── Example
    ├── PSTAlertViewControllerSample.xcodeproj
    │   ├── project.pbxproj
    │   └── project.xcworkspace
    │   │   └── contents.xcworkspacedata
    └── PSTAlertViewControllerSample
    │   ├── AppDelegate.h
    │   ├── AppDelegate.m
    │   ├── Base.lproj
    │       ├── LaunchScreen.xib
    │       └── Main.storyboard
    │   ├── Images.xcassets
    │       └── AppIcon.appiconset
    │       │   └── Contents.json
    │   ├── Info.plist
    │   ├── ViewController.h
    │   ├── ViewController.m
    │   └── main.m
├── LICENSE
├── PSTAlertController.podspec
├── PSTAlertController
    ├── PSTAlertController.h
    └── PSTAlertController.m
└── README.md


/.gitignore:
--------------------------------------------------------------------------------
 1 | # Xcode
 2 | #
 3 | build/
 4 | *.pbxuser
 5 | !default.pbxuser
 6 | *.mode1v3
 7 | !default.mode1v3
 8 | *.mode2v3
 9 | !default.mode2v3
10 | *.perspectivev3
11 | !default.perspectivev3
12 | xcuserdata
13 | *.xccheckout
14 | *.moved-aside
15 | DerivedData
16 | *.hmap
17 | *.ipa
18 | *.xcuserstate
19 | .DS_Store
20 | 
21 | # CocoaPods
22 | #
23 | # We recommend against adding the Pods directory to your .gitignore. However
24 | # you should judge for yourself, the pros and cons are mentioned at:
25 | # http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control
26 | #
27 | # Pods/
28 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample.xcodeproj/project.pbxproj:
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344 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:PSTAlertViewControllerSample.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/AppDelegate.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.h
 3 | //  PSTAlertViewControllerSample
 4 | //
 5 | //  Created by Peter Steinberger on 07/11/14.
 6 | //  Copyright (c) 2014 PSPDFKit GmbH. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface AppDelegate : UIResponder <UIApplicationDelegate>
12 | 
13 | @property (strong, nonatomic) UIWindow *window;
14 | 
15 | 
16 | @end
17 | 
18 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/AppDelegate.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.m
 3 | //  PSTAlertViewControllerSample
 4 | //
 5 | //  Created by Peter Steinberger on 07/11/14.
 6 | //  Copyright (c) 2014 PSPDFKit GmbH. All rights reserved.
 7 | //
 8 | 
 9 | #import "AppDelegate.h"
10 | 
11 | @implementation AppDelegate
12 | 
13 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
14 |     // Override point for customization after application launch.
15 |     return YES;
16 | }
17 | 
18 | @end
19 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/Base.lproj/LaunchScreen.xib:
--------------------------------------------------------------------------------
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 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6207"/>
 5 |         <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
 6 |     </dependencies>
 7 |     <objects>
 8 |         <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
 9 |         <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
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11 |             <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
12 |             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
13 |             <subviews>
14 |                 <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2014 PSPDFKit GmbH. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
15 |                     <rect key="frame" x="20" y="439" width="441" height="21"/>
16 |                     <fontDescription key="fontDescription" type="system" pointSize="17"/>
17 |                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
18 |                     <nil key="highlightedColor"/>
19 |                 </label>
20 |                 <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="PSTAlertViewControllerSample" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
21 |                     <rect key="frame" x="20" y="140" width="441" height="43"/>
22 |                     <fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
23 |                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
24 |                     <nil key="highlightedColor"/>
25 |                 </label>
26 |             </subviews>
27 |             <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
28 |             <constraints>
29 |                 <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
30 |                 <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
31 |                 <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
32 |                 <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
33 |                 <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
34 |                 <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
35 |             </constraints>
36 |             <nil key="simulatedStatusBarMetrics"/>
37 |             <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
38 |             <point key="canvasLocation" x="548" y="455"/>
39 |         </view>
40 |     </objects>
41 | </document>
42 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="8191" systemVersion="15A282b" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
 3 |     <dependencies>
 4 |         <deployment identifier="iOS"/>
 5 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="8154"/>
 6 |     </dependencies>
 7 |     <scenes>
 8 |         <!--View Controller-->
 9 |         <scene sceneID="tne-QT-ifu">
10 |             <objects>
11 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" sceneMemberID="viewController">
12 |                     <layoutGuides>
13 |                         <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
14 |                         <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
15 |                     </layoutGuides>
16 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
17 |                         <rect key="frame" x="0.0" y="0.0" width="768" height="1024"/>
18 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
19 |                         <subviews>
20 |                             <button opaque="NO" contentMode="scaleToFill" misplaced="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="NAa-Py-WRi">
21 |                                 <rect key="frame" x="279" y="110" width="210" height="30"/>
22 |                                 <animations/>
23 |                                 <state key="normal" title="test AlertController">
24 |                                     <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
25 |                                 </state>
26 |                                 <variation key="heightClass=regular" fixedFrame="YES">
27 |                                     <rect key="frame" x="320" y="497" width="129" height="30"/>
28 |                                 </variation>
29 |                                 <connections>
30 |                                     <action selector="testButtonPressed:" destination="BYZ-38-t0r" eventType="touchUpInside" id="1TS-0W-adq"/>
31 |                                 </connections>
32 |                             </button>
33 |                             <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="3ry-HB-NNt">
34 |                                 <rect key="frame" x="338" y="268" width="92" height="30"/>
35 |                                 <animations/>
36 |                                 <state key="normal" title="Do the dance"/>
37 |                                 <connections>
38 |                                     <action selector="doTheDance:" destination="BYZ-38-t0r" eventType="touchUpInside" id="Kff-0Z-fYE"/>
39 |                                 </connections>
40 |                             </button>
41 |                         </subviews>
42 |                         <animations/>
43 |                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
44 |                         <constraints>
45 |                             <constraint firstItem="NAa-Py-WRi" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="2aS-cz-kb3"/>
46 |                             <constraint firstItem="NAa-Py-WRi" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" constant="90" id="4pj-XW-nCu"/>
47 |                             <constraint firstItem="3ry-HB-NNt" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="kX0-4W-9Dc"/>
48 |                             <constraint firstItem="3ry-HB-NNt" firstAttribute="top" secondItem="NAa-Py-WRi" secondAttribute="bottom" constant="128" id="v41-x0-RFK"/>
49 |                         </constraints>
50 |                     </view>
51 |                     <simulatedScreenMetrics key="simulatedDestinationMetrics" type="iPad"/>
52 |                 </viewController>
53 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
54 |             </objects>
55 |             <point key="canvasLocation" x="280" y="361"/>
56 |         </scene>
57 |     </scenes>
58 | </document>
59 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/Images.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "29x29",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "29x29",
11 |       "scale" : "3x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "40x40",
16 |       "scale" : "2x"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "size" : "40x40",
21 |       "scale" : "3x"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "size" : "60x60",
26 |       "scale" : "2x"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "size" : "60x60",
31 |       "scale" : "3x"
32 |     },
33 |     {
34 |       "idiom" : "ipad",
35 |       "size" : "29x29",
36 |       "scale" : "1x"
37 |     },
38 |     {
39 |       "idiom" : "ipad",
40 |       "size" : "29x29",
41 |       "scale" : "2x"
42 |     },
43 |     {
44 |       "idiom" : "ipad",
45 |       "size" : "40x40",
46 |       "scale" : "1x"
47 |     },
48 |     {
49 |       "idiom" : "ipad",
50 |       "size" : "40x40",
51 |       "scale" : "2x"
52 |     },
53 |     {
54 |       "idiom" : "ipad",
55 |       "size" : "76x76",
56 |       "scale" : "1x"
57 |     },
58 |     {
59 |       "idiom" : "ipad",
60 |       "size" : "76x76",
61 |       "scale" : "2x"
62 |     }
63 |   ],
64 |   "info" : {
65 |     "version" : 1,
66 |     "author" : "xcode"
67 |   }
68 | }


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>en</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>com.pspdfkit.$(PRODUCT_NAME:rfc1034identifier)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>APPL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleSignature</key>
20 | 	<string>????</string>
21 | 	<key>CFBundleVersion</key>
22 | 	<string>1</string>
23 | 	<key>LSRequiresIPhoneOS</key>
24 | 	<true/>
25 | 	<key>UILaunchStoryboardName</key>
26 | 	<string>LaunchScreen</string>
27 | 	<key>UIMainStoryboardFile</key>
28 | 	<string>Main</string>
29 | 	<key>UIRequiredDeviceCapabilities</key>
30 | 	<array>
31 | 		<string>armv7</string>
32 | 	</array>
33 | 	<key>UISupportedInterfaceOrientations</key>
34 | 	<array>
35 | 		<string>UIInterfaceOrientationPortrait</string>
36 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
37 | 		<string>UIInterfaceOrientationLandscapeRight</string>
38 | 	</array>
39 | 	<key>UISupportedInterfaceOrientations~ipad</key>
40 | 	<array>
41 | 		<string>UIInterfaceOrientationPortrait</string>
42 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
43 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
44 | 		<string>UIInterfaceOrientationLandscapeRight</string>
45 | 	</array>
46 | </dict>
47 | </plist>
48 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/ViewController.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.h
 3 | //  PSTAlertViewControllerSample
 4 | //
 5 | //  Created by Peter Steinberger on 07/11/14.
 6 | //  Copyright (c) 2014 PSPDFKit GmbH. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface ViewController : UIViewController
12 | 
13 | @end
14 | 
15 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/ViewController.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.m
 3 | //  PSTAlertViewControllerSample
 4 | //
 5 | //  Created by Peter Steinberger on 07/11/14.
 6 | //  Copyright (c) 2014 PSPDFKit GmbH. All rights reserved.
 7 | //
 8 | 
 9 | #import "ViewController.h"
10 | #import "PSTAlertController.h"
11 | 
12 | @implementation ViewController
13 | 
14 | - (void)viewDidAppear:(BOOL)animated {
15 |     [super viewDidAppear:animated];
16 | }
17 | 
18 | - (IBAction)testButtonPressed:(UIButton *)sender {
19 |     PSTAlertController *controller = [PSTAlertController actionSheetWithTitle:nil];
20 |     [controller addAction:[PSTAlertAction actionWithTitle:@"OK" style:PSTAlertActionStyleDestructive handler:nil]];
21 |     // Cancel action on a sheet should be the last action.
22 |     [controller addCancelActionWithHandler:nil];
23 |     [controller showWithSender:sender arrowDirection:UIPopoverArrowDirectionAny controller:self animated:YES completion:nil];
24 | }
25 | 
26 | - (IBAction)doTheDance:(UIButton *)sender {
27 |     PSTAlertController *gotoPageController = [PSTAlertController alertWithTitle:@"Go to page" message:nil];
28 |     [gotoPageController addTextFieldWithConfigurationHandler:^(UITextField *textField) {
29 |         textField.keyboardType = UIKeyboardTypeNumberPad;
30 |     }];
31 |     [gotoPageController addCancelActionWithHandler:NULL];
32 |     [gotoPageController addAction:[PSTAlertAction actionWithTitle:@"Go to" handler:^(PSTAlertAction *action) {
33 |         NSString *pageLabel = action.alertController.textField.text;
34 |         PSTAlertController *dismissable = [PSTAlertController presentDismissableAlertWithTitle:@"Result" message:[NSString stringWithFormat:@"You entered %@", pageLabel] controller:self];
35 |         [dismissable addDidDismissBlock:^(PSTAlertAction *action) {
36 |             [self doTheDance:nil];
37 |         }];
38 |     }]];
39 |     [gotoPageController addAction:[PSTAlertAction actionWithTitle:@"No" style:PSTAlertActionStyleDestructive handler:^(PSTAlertAction *action) {
40 |         PSTAlertController *sheetController = [PSTAlertController actionSheetWithTitle:@"No?"];
41 |         [sheetController addAction:[PSTAlertAction actionWithTitle:@"I've changed my mind" handler:^(PSTAlertAction *action) {
42 |             [self doTheDance:nil];
43 |         }]];
44 |         // Cancel action on a sheet should be the last action.
45 |         [sheetController addAction:[PSTAlertAction actionWithTitle:@"That's fine." style:PSTAlertActionStyleCancel handler:NULL]];
46 |         [sheetController showWithSender:[NSValue valueWithCGRect:CGRectMake(100.f, 100.f, 1.f, 1.f)] controller:self animated:YES completion:^{
47 |             NSLog(@"Okay, let's do that again...");
48 |         }];
49 |     }]];
50 |     [gotoPageController showWithSender:nil controller:self animated:YES completion:NULL];
51 | }
52 | 
53 | @end
54 | 


--------------------------------------------------------------------------------
/Example/PSTAlertViewControllerSample/main.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  main.m
 3 | //  PSTAlertViewControllerSample
 4 | //
 5 | //  Created by Peter Steinberger on 07/11/14.
 6 | //  Copyright (c) 2014 PSPDFKit GmbH. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | #import "AppDelegate.h"
11 | 
12 | int main(int argc, char * argv[]) {
13 |     @autoreleasepool {
14 |         return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
15 |     }
16 | }
17 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | Copyright (c) 2014 Peter Steinberger <steipete@gmail.com>
 2 | 
 3 | Permission is hereby granted, free of charge, to any person obtaining a copy
 4 | of this software and associated documentation files (the "Software"), to deal
 5 | in the Software without restriction, including without limitation the rights
 6 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 7 | copies of the Software, and to permit persons to whom the Software is
 8 | furnished to do so, subject to the following conditions:
 9 | 
10 | The above copyright notice and this permission notice shall be included in
11 | all copies or substantial portions of the Software.
12 | 
13 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 | THE SOFTWARE.
20 | 


--------------------------------------------------------------------------------
/PSTAlertController.podspec:
--------------------------------------------------------------------------------
 1 | #
 2 | # Be sure to run `pod lib lint PSTAlertController.podspec' to ensure this is a
 3 | # valid spec and remove all comments before submitting the spec.
 4 | #
 5 | # Any lines starting with a # are optional, but encouraged
 6 | #
 7 | # To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html
 8 | #
 9 | 
10 | Pod::Spec.new do |s|
11 |   s.name             = "PSTAlertController"
12 |   s.version          = "1.2.0"
13 |   s.summary          = "API similar to UIAlertController, backwards compatible to iOS 7. Will use the new shiny API when you run iOS 8. "
14 |   s.description      = <<-DESC
15 |                        We cheat a bit by having PSTAlertController superclass be NSObject, but for most use cases it's still a lot more convenient than using UIAlertView/UIActionSheet.
16 |                        DESC
17 |   s.homepage         = "https://github.com/steipete/PSTAlertController"
18 |   s.license          = 'MIT'
19 |   s.author           = { "Peter Steinberger" => "steipete@gmail.com" }
20 |   s.source           = { :git => "https://github.com/steipete/PSTAlertController.git", :tag => s.version.to_s }
21 |   # s.social_media_url = 'https://twitter.com/steipete'
22 | 
23 |   s.platform     = :ios, '7.0'
24 |   s.requires_arc = true
25 | 
26 |   s.source_files = 'PSTAlertController'
27 |   s.public_header_files = 'PSTAlertController/**/*.h'
28 |   s.frameworks = 'UIKit'
29 | end


--------------------------------------------------------------------------------
/PSTAlertController/PSTAlertController.h:
--------------------------------------------------------------------------------
  1 | //
  2 | //  PSTAlertController.h
  3 | //
  4 | //  Licensed under the MIT license.
  5 | //  Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH.
  6 | //
  7 | //  Permission is hereby granted, free of charge, to any person obtaining a copy
  8 | //  of this software and associated documentation files (the "Software"), to deal
  9 | //  in the Software without restriction, including without limitation the rights
 10 | //  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 11 | //  copies of the Software, and to permit persons to whom the Software is
 12 | //  furnished to do so, subject to the following conditions:
 13 | //
 14 | //  The above copyright notice and this permission notice shall be included in all
 15 | //  copies or substantial portions of the Software.
 16 | //
 17 | //  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 18 | //  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 19 | //  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 20 | //  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 21 | //  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 22 | //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 23 | //  SOFTWARE.
 24 | //
 25 | 
 26 | #import <Foundation/Foundation.h>
 27 | #import <UIKit/UIKit.h>
 28 | 
 29 | NS_ASSUME_NONNULL_BEGIN
 30 | 
 31 | typedef NS_ENUM(NSInteger, PSTAlertControllerStyle) {
 32 |     PSTAlertControllerStyleActionSheet = 0,
 33 |     PSTAlertControllerStyleAlert
 34 | };
 35 | 
 36 | typedef NS_ENUM(NSInteger, PSTAlertActionStyle) {
 37 |     PSTAlertActionStyleDefault = 0,
 38 |     PSTAlertActionStyleCancel,
 39 |     PSTAlertActionStyleDestructive
 40 | };
 41 | 
 42 | @class PSTAlertController;
 43 | 
 44 | // Defines a single button/action.
 45 | @interface PSTAlertAction : NSObject
 46 | + (instancetype)actionWithTitle:(NSString *)title style:(PSTAlertActionStyle)style handler:(void (^ __nullable)(PSTAlertAction *action))handler;
 47 | + (instancetype)actionWithTitle:(NSString *)title handler:(void (^ __nullable)(PSTAlertAction *action))handler;
 48 | @property (nonatomic, readonly) PSTAlertActionStyle style;
 49 | 
 50 | @property (nonatomic, weak) PSTAlertController *alertController; // weak connection
 51 | 
 52 | @end
 53 | 
 54 | // Mashup of UIAlertController with fallback methods for iOS 7.
 55 | // @note Blocks are generally executed after the dismiss animation is completed.
 56 | @interface PSTAlertController : NSObject
 57 | 
 58 | // Generic initializer
 59 | + (instancetype)alertControllerWithTitle:(nullable NSString *)title message:(nullable NSString *)message preferredStyle:(PSTAlertControllerStyle)preferredStyle;
 60 | - (instancetype)init NS_UNAVAILABLE;
 61 | 
 62 | // Add action.
 63 | - (void)addAction:(PSTAlertAction *)action;
 64 | 
 65 | // Add block that is called after the alert controller will be dismissed (before animation).
 66 | - (void)addWillDismissBlock:(void (^)(PSTAlertAction *action))willDismissBlock;
 67 | 
 68 | // Add block that is called after the alert view has been dismissed (after animation).
 69 | - (void)addDidDismissBlock:(void (^)(PSTAlertAction *action))didDismissBlock;
 70 | 
 71 | @property (nullable, nonatomic, copy, readonly) NSArray<PSTAlertAction *> *actions;
 72 | 
 73 | // Text field support
 74 | - (void)addTextFieldWithConfigurationHandler:(void (^ __nullable)(UITextField *textField))configurationHandler;
 75 | @property (nullable, nonatomic, readonly) NSArray<UITextField *> *textFields;
 76 | 
 77 | @property (nullable, nonatomic, copy) NSString *title;
 78 | @property (nullable, nonatomic, copy) NSString *message;
 79 | 
 80 | @property (nonatomic, readonly) PSTAlertControllerStyle preferredStyle;
 81 | 
 82 | // Presentation and dismissal
 83 | - (void)showWithSender:(nullable id)sender controller:(nullable UIViewController *)controller animated:(BOOL)animated completion:(void (^ __nullable)(void))completion;
 84 | - (void)showWithSender:(nullable id)sender arrowDirection:(UIPopoverArrowDirection)arrowDirection controller:(nullable UIViewController *)controller animated:(BOOL)animated completion:(void (^ __nullable)(void))completion;
 85 | - (void)dismissAnimated:(BOOL)animated completion:(void (^ __nullable)(void))completion;
 86 | 
 87 | + (BOOL)hasVisibleAlertController;
 88 | @property (nonatomic, readonly, getter=isVisible) BOOL visible;
 89 | 
 90 | @end
 91 | 
 92 | @interface PSTAlertController (Convenience)
 93 | 
 94 | // Convenience initializers
 95 | + (instancetype)actionSheetWithTitle:(nullable NSString *)title;
 96 | + (instancetype)alertWithTitle:(nullable NSString *)title message:(nullable NSString *)message;
 97 | 
 98 | // Convenience. Presents a simple alert with a "Dismiss" button.
 99 | // Will use the root view controller if `controller` is nil.
100 | + (instancetype)presentDismissableAlertWithTitle:(nullable NSString *)title message:(nullable NSString *)message controller:(nullable UIViewController *)controller;
101 | 
102 | // Variant that will present an error.
103 | + (instancetype)presentDismissableAlertWithTitle:(nullable NSString *)title error:(nullable NSError *)error controller:(nullable UIViewController *)controller;
104 | 
105 | // From Apple's HIG:
106 | // In a two-button alert that proposes a potentially risky action, the button that cancels the action should be on the right (and light-colored).
107 | // In a two-button alert that proposes a benign action that people are likely to want, the button that cancels the action should be on the left (and dark-colored).
108 | - (void)addCancelActionWithHandler:(void (^ __nullable)(PSTAlertAction *action))handler; // convenience
109 | 
110 | @property (nullable, nonatomic, readonly) UITextField *textField;
111 | 
112 | @end
113 | 
114 | 
115 | @interface PSTAlertController (Internal)
116 | 
117 | @property (nullable, nonatomic, strong, readonly) UIAlertController *alertController;
118 | 
119 | @property (nullable, nonatomic, strong, readonly) UIActionSheet *actionSheet;
120 | @property (nullable, nonatomic, strong, readonly) UIAlertView *alertView;
121 | 
122 | // One if the above three.
123 | @property (nullable, nonatomic, strong, readonly) id presentedObject;
124 | 
125 | @end
126 | 
127 | NS_ASSUME_NONNULL_END
128 | 


--------------------------------------------------------------------------------
/PSTAlertController/PSTAlertController.m:
--------------------------------------------------------------------------------
  1 | //
  2 | //  PSTAlertController.m
  3 | //
  4 | //  Copyright (c) 2014 PSPDFKit GmbH. All rights reserved.
  5 | //
  6 | 
  7 | #import "PSTAlertController.h"
  8 | #import <objc/runtime.h>
  9 | 
 10 | #define PROPERTY(property) NSStringFromSelector(@selector(property))
 11 | 
 12 | @interface PSTAlertAction ()
 13 | @property (nonatomic, copy) NSString *title;
 14 | @property (nonatomic, assign) PSTAlertActionStyle style;
 15 | @property (nonatomic, copy) void (^handler)(PSTAlertAction *action);
 16 | - (void)performAction;
 17 | @end
 18 | 
 19 | @implementation PSTAlertAction
 20 | 
 21 | + (instancetype)actionWithTitle:(NSString *)title style:(PSTAlertActionStyle)style handler:(void (^)(PSTAlertAction *action))handler {
 22 |     return [[self alloc] initWithTitle:title style:style handler:handler];
 23 | }
 24 | 
 25 | + (instancetype)actionWithTitle:(NSString *)title handler:(void (^)(PSTAlertAction *action))handler {
 26 |     return [[self alloc] initWithTitle:title style:PSTAlertActionStyleDefault handler:handler];
 27 | }
 28 | 
 29 | - (instancetype)initWithTitle:(NSString *)title style:(PSTAlertActionStyle)style handler:(void (^)(PSTAlertAction *action))handler {
 30 |     if ((self = [super init])) {
 31 |         _title = [title copy];
 32 |         _style = style;
 33 |         _handler = [handler copy];
 34 |     }
 35 |     return self;
 36 | }
 37 | 
 38 | - (void)performAction {
 39 |     if (self.handler) {
 40 |         self.handler(self);
 41 |         self.handler = nil; // nil out after calling to break cycles.
 42 |     }
 43 | }
 44 | 
 45 | @end
 46 | 
 47 | @interface PSTExtendedAlertController : UIAlertController
 48 | @property (nonatomic, copy) void (^viewWillDisappearBlock)(void);
 49 | @property (nonatomic, copy) void (^viewDidDisappearBlock)(void);
 50 | @end
 51 | 
 52 | @implementation PSTExtendedAlertController
 53 | 
 54 | - (void)viewWillDisappear:(BOOL)animated {
 55 |     [super viewWillDisappear:animated];
 56 |     if (self.viewWillDisappearBlock) self.viewWillDisappearBlock();
 57 | }
 58 | 
 59 | - (void)viewDidDisappear:(BOOL)animated {
 60 |     [super viewDidDisappear:animated];
 61 |     if (self.viewDidDisappearBlock) self.viewDidDisappearBlock();
 62 | }
 63 | 
 64 | @end
 65 | 
 66 | @interface PSTAlertController () <UIActionSheetDelegate, UIAlertViewDelegate> {
 67 |     struct {
 68 |         unsigned int isShowingAlert:1;
 69 |     } _flags;
 70 | }
 71 | - (instancetype)initWithTitle:(NSString *)title message:(NSString *)message preferredStyle:(PSTAlertControllerStyle)preferredStyle NS_DESIGNATED_INITIALIZER;
 72 | 
 73 | @property (nonatomic, copy) NSArray *willDismissBlocks;
 74 | @property (nonatomic, copy) NSArray *didDismissBlocks;
 75 | 
 76 | // iOS 8
 77 | @property (nonatomic, strong) PSTExtendedAlertController *alertController;
 78 | 
 79 | // Universal
 80 | @property (nonatomic, weak) PSTAlertAction *executedAlertAction;
 81 | 
 82 | // iOS 7
 83 | @property (nonatomic, copy) NSArray *actions;
 84 | @property (nonatomic, copy) NSArray *textFieldHandlers;
 85 | @property (nonatomic, strong, readonly) UIActionSheet *actionSheet;
 86 | @property (nonatomic, strong, readonly) UIAlertView *alertView;
 87 | 
 88 | // Storage for actionSheet/alertView
 89 | @property (nonatomic, strong) UIView *strongSheetStorage;
 90 | @property (nonatomic, weak) UIView *weakSheetStorage;
 91 | @end
 92 | 
 93 | @implementation PSTAlertController
 94 | 
 95 | ///////////////////////////////////////////////////////////////////////////////////////////
 96 | #pragma mark - Initialization
 97 | 
 98 | - (BOOL)alertControllerAvailable {
 99 |     return [UIAlertController class] != nil; // iOS 8 and later.
100 | }
101 | 
102 | + (instancetype)alertControllerWithTitle:(NSString *)title message:(NSString *)message preferredStyle:(PSTAlertControllerStyle)preferredStyle {
103 |     return [[self alloc] initWithTitle:title message:message preferredStyle:preferredStyle];
104 | }
105 | 
106 | - (instancetype)init NS_UNAVAILABLE {
107 |     assert(0);
108 | }
109 | 
110 | - (instancetype)initWithTitle:(NSString *)title message:(NSString *)message preferredStyle:(PSTAlertControllerStyle)preferredStyle {
111 |     if ((self = [super init])) {
112 |         _title = [title copy];
113 |         _message = [message copy];
114 |         _preferredStyle = preferredStyle;
115 | 
116 |         if ([self alertControllerAvailable]) {
117 |             _alertController = [PSTExtendedAlertController alertControllerWithTitle:title message:message preferredStyle:(UIAlertControllerStyle)preferredStyle];
118 |         } else {
119 | #if __IPHONE_OS_VERSION_MIN_REQUIRED < 80000
120 |             if (preferredStyle == PSTAlertControllerStyleActionSheet) {
121 |                 NSString *titleAndMessage = title;
122 |                 if (title && message) {
123 |                     titleAndMessage = [NSString stringWithFormat:@"%@\n%@", title, message];
124 |                 }
125 |                 _strongSheetStorage = [[UIActionSheet alloc] initWithTitle:titleAndMessage delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil];
126 |             } else {
127 |                 _strongSheetStorage = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:nil otherButtonTitles:nil];
128 |             }
129 | #endif
130 |         }
131 |     }
132 |     return self;
133 | }
134 | 
135 | - (NSString *)description {
136 |     return [NSString stringWithFormat:@"<%@: %p, title:%@, actions:%@>", NSStringFromClass(self.class), self, self.title, self.actions];
137 | }
138 | 
139 | - (void)setTitle:(NSString *)title {
140 |     _title = [title copy];
141 |     _alertController.title = title;
142 | 
143 |     id obj = self.strongSheetStorage ?: self.weakSheetStorage;
144 |     if ([obj respondsToSelector:@selector(setTitle:)]) {
145 |         [obj setTitle:title];
146 |     }
147 | }
148 | 
149 | - (void)setMessage:(NSString *)message {
150 |     _message = [message copy];
151 |     _alertController.message = message;
152 | 
153 |     id obj = self.strongSheetStorage ?: self.weakSheetStorage;
154 |     if ([obj respondsToSelector:@selector(setMessage:)]) {
155 |         [obj setMessage:message];
156 |     } else if ([obj respondsToSelector:@selector(setTitle:)]) {
157 |         NSString *final = message;
158 |         if (_title && message) {
159 |             final = [NSString stringWithFormat:@"%@\n%@", _title, message];
160 |         }
161 |         [obj setTitle:final];
162 |     }
163 | }
164 | 
165 | - (void)dealloc {
166 |     // In case the alert controller can't be displayed for any reason,
167 |     // We'd still increment the counter and need to do the cleanup work here.
168 |     [self setIsShowingAlert:NO];
169 | }
170 | 
171 | ///////////////////////////////////////////////////////////////////////////////////////////
172 | #pragma mark - Accessors
173 | 
174 | - (UIAlertView *)alertView {
175 |     return (UIAlertView *)(self.strongSheetStorage ?: self.weakSheetStorage);
176 | }
177 | 
178 | - (UIActionSheet *)actionSheet {
179 |     return (UIActionSheet *)(self.strongSheetStorage ?: self.weakSheetStorage);
180 | }
181 | 
182 | ///////////////////////////////////////////////////////////////////////////////////////////
183 | #pragma mark - Adding Actions
184 | 
185 | - (void)addAction:(PSTAlertAction *)action {
186 |     NSAssert([action isKindOfClass:PSTAlertAction.class], @"Must be of type PSTAlertAction");
187 | 
188 |     action.alertController = self; // weakly connect
189 | 
190 |     self.actions = [[NSArray arrayWithArray:self.actions] arrayByAddingObject:action];
191 | 
192 |     if ([self alertControllerAvailable]) {
193 |         __weak typeof (self) weakSelf = self;
194 |         UIAlertAction *alertAction = [UIAlertAction actionWithTitle:action.title style:(UIAlertActionStyle)action.style handler:^(UIAlertAction *uiAction) {
195 |             weakSelf.executedAlertAction = action;
196 |             [action performAction];
197 |         }];
198 |         [self.alertController addAction:alertAction];
199 |     } else {
200 |         if (self.preferredStyle == PSTAlertControllerStyleActionSheet) {
201 |             NSUInteger currentButtonIndex = [self.actionSheet addButtonWithTitle:action.title];
202 | 
203 |             if (action.style == PSTAlertActionStyleDestructive) {
204 |                 self.actionSheet.destructiveButtonIndex = currentButtonIndex;
205 |             } else if (action.style == PSTAlertActionStyleCancel) {
206 |                 self.actionSheet.cancelButtonIndex = currentButtonIndex;
207 |             }
208 |         } else {
209 |             NSUInteger currentButtonIndex = [self.alertView addButtonWithTitle:action.title];
210 | 
211 |             // UIAlertView doesn't support destructive buttons.
212 |             if (action.style == PSTAlertActionStyleCancel) {
213 |                 self.alertView.cancelButtonIndex = currentButtonIndex;
214 |             }
215 |         }
216 |     }
217 | }
218 | 
219 | ///////////////////////////////////////////////////////////////////////////////////////////
220 | #pragma mark - Text Field Support
221 | 
222 | - (void)addTextFieldWithConfigurationHandler:(void (^)(UITextField *textField))configurationHandler {
223 |     if ([self alertControllerAvailable]) {
224 |         [self.alertController addTextFieldWithConfigurationHandler:configurationHandler];
225 |     } else {
226 |         NSAssert(self.preferredStyle == PSTAlertControllerStyleAlert, @"Text fields are only supported for alerts.");
227 |         self.textFieldHandlers = [[NSArray arrayWithArray:self.textFieldHandlers] arrayByAddingObject:configurationHandler ?: ^(UITextField *textField){}];
228 |         self.alertView.alertViewStyle = self.textFieldHandlers.count > 1 ? UIAlertViewStyleLoginAndPasswordInput : UIAlertViewStylePlainTextInput;
229 |     }
230 | }
231 | 
232 | - (NSArray *)textFields {
233 |     if ([self alertControllerAvailable]) {
234 |         return self.alertController.textFields;
235 |     } else if (self.preferredStyle == PSTAlertControllerStyleAlert) {
236 |         switch (self.alertView.alertViewStyle) {
237 |             case UIAlertViewStyleSecureTextInput:
238 |             case UIAlertViewStylePlainTextInput:
239 |                 return @[[self.alertView textFieldAtIndex:0]];
240 |             case UIAlertViewStyleLoginAndPasswordInput:
241 |                 return @[[self.alertView textFieldAtIndex:0], [self.alertView textFieldAtIndex:1]];
242 |             case UIAlertViewStyleDefault:
243 |                 return @[];
244 |         }
245 |     }
246 |     // UIActionSheet doesn't support text fields.
247 |     return nil;
248 | }
249 | 
250 | - (UITextField *)textField {
251 |     return self.textFields.firstObject;
252 | }
253 | 
254 | ///////////////////////////////////////////////////////////////////////////////////////////
255 | #pragma mark - Presentation
256 | 
257 | static NSUInteger PSTVisibleAlertsCount = 0;
258 | + (BOOL)hasVisibleAlertController {
259 |     return PSTVisibleAlertsCount > 0;
260 | }
261 | 
262 | - (BOOL)isVisible {
263 |     if ([self alertControllerAvailable]) {
264 |         return self.alertController.view.window != nil;
265 |     } else {
266 |         if (self.preferredStyle == PSTAlertControllerStyleActionSheet) {
267 |             return self.actionSheet.isVisible;
268 |         } else {
269 |             return self.alertView.isVisible;
270 |         }
271 |     }
272 | }
273 | 
274 | - (void)showWithSender:(id)sender controller:(UIViewController *)controller animated:(BOOL)animated completion:(void (^)(void))completion {
275 |     [self showWithSender:sender arrowDirection:UIPopoverArrowDirectionAny controller:controller animated:animated completion:completion];
276 | }
277 | 
278 | - (void)showWithSender:(id)sender arrowDirection:(UIPopoverArrowDirection)arrowDirection controller:(UIViewController *)controller animated:(BOOL)animated completion:(void (^)(void))completion {
279 |     if ([self alertControllerAvailable]) {
280 |         // As a convenience, allow automatic root view controller fetching if we show an alert.
281 |         if (self.preferredStyle == PSTAlertControllerStyleAlert) {
282 |             if (!controller) {
283 |                 // sharedApplication is unavailable for extensions, but required for things like preferredContentSizeCategory.
284 |                 UIApplication *sharedApplication = [UIApplication performSelector:NSSelectorFromString(PROPERTY(sharedApplication))];
285 |                 controller = sharedApplication.keyWindow.rootViewController;
286 |             }
287 | 
288 |             // Use the frontmost viewController for presentation.
289 |             while (controller.presentedViewController) {
290 |                 controller = controller.presentedViewController;
291 |             }
292 | 
293 |             if (!controller) {
294 |                 NSLog(@"Can't show alert because there is no root view controller.");
295 |                 return;
296 |             }
297 |         }
298 | 
299 |         // We absolutely need a controller going forward.
300 |         NSParameterAssert(controller);
301 | 
302 |         PSTExtendedAlertController *alertController = self.alertController;
303 |         UIPopoverPresentationController *popoverPresentation = alertController.popoverPresentationController;
304 |         if (popoverPresentation) { // nil on iPhone
305 |             if ([sender isKindOfClass:UIBarButtonItem.class]) {
306 |                 popoverPresentation.barButtonItem = sender;
307 |             } else if ([sender isKindOfClass:UIView.class]) {
308 |                 popoverPresentation.sourceView = sender;
309 |                 popoverPresentation.sourceRect = [sender bounds];
310 |             } else if ([sender isKindOfClass:NSValue.class]) {
311 |                 popoverPresentation.sourceView = controller.view;
312 |                 popoverPresentation.sourceRect = [sender CGRectValue];
313 |             } else {
314 |                 popoverPresentation.sourceView = controller.view;
315 |                 popoverPresentation.sourceRect = controller.view.bounds;
316 |             }
317 | 
318 |             // Workaround for rdar://18921595. Unsatisfiable constraints when presenting UIAlertController.
319 |             // If the rect is too large, the action sheet can't be displayed.
320 |             CGRect r = popoverPresentation.sourceRect, screen = UIScreen.mainScreen.bounds;
321 |             if (CGRectGetHeight(r) > CGRectGetHeight(screen)*0.5 || CGRectGetWidth(r) > CGRectGetWidth(screen)*0.5) {
322 |                 popoverPresentation.sourceRect = CGRectMake(r.origin.x + r.size.width/2.f, r.origin.y + r.size.height/2.f, 1.f, 1.f);
323 |             }
324 | 
325 |             // optimize arrow positioning for up and down.
326 |             popoverPresentation.permittedArrowDirections = arrowDirection;
327 |             switch (arrowDirection) {
328 |                 case UIPopoverArrowDirectionDown:
329 |                     popoverPresentation.sourceRect = CGRectMake(r.origin.x + r.size.width/2.f, r.origin.y, 1.f, 1.f);
330 |                     break;
331 |                 case UIPopoverArrowDirectionUp:
332 |                     popoverPresentation.sourceRect = CGRectMake(r.origin.x + r.size.width/2.f, r.origin.y + r.size.height, 1.f, 1.f);
333 |                     break;
334 |                 // Left and right is too buggy.
335 |                 default:
336 |                     break;
337 |             }
338 |         }
339 | 
340 |         // Hook up dismiss blocks.
341 |         __weak typeof (self) weakSelf = self;
342 |         alertController.viewWillDisappearBlock = ^{
343 |             typeof (self) strongSelf = weakSelf;
344 |             [strongSelf performBlocks:PROPERTY(willDismissBlocks) withAction:strongSelf.executedAlertAction];
345 |             [strongSelf setIsShowingAlert:NO];
346 |         };
347 |         alertController.viewDidDisappearBlock = ^{
348 |             typeof (self) strongSelf = weakSelf;
349 |             [strongSelf performBlocks:PROPERTY(didDismissBlocks) withAction:strongSelf.executedAlertAction];
350 |         };
351 | 
352 |         [controller presentViewController:alertController animated:animated completion:^{
353 |             // Bild lifetime of self to the controller.
354 |             // Will not be called if presenting fails because another present/dismissal already happened during that runloop.
355 |             // rdar://problem/19045528
356 |             objc_setAssociatedObject(controller, _cmd, self, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
357 |         }];
358 | 
359 |     } else {
360 |         if (self.preferredStyle == PSTAlertControllerStyleActionSheet) {
361 |             [self showActionSheetWithSender:sender fallbackView:controller.view animated:animated];
362 |             [self moveSheetToWeakStorage];
363 |         } else {
364 |             // Call text field configuration handlers.
365 |             [self.textFieldHandlers enumerateObjectsUsingBlock:^(void (^configurationHandler)(UITextField *textField), NSUInteger idx, BOOL *stop) {
366 |                 configurationHandler([self.alertView textFieldAtIndex:idx]);
367 |             }];
368 |             [self.alertView show];
369 |             [self moveSheetToWeakStorage];
370 |         }
371 |         // This is called before the animation is complete, but at least it's called.
372 |         if (completion) completion();
373 |     }
374 |     [self setIsShowingAlert:YES];
375 | }
376 | 
377 | - (void)setIsShowingAlert:(BOOL)isShowing {
378 |     if (_flags.isShowingAlert != isShowing) {
379 |         _flags.isShowingAlert = isShowing;
380 |         if (isShowing) {
381 |             PSTVisibleAlertsCount++;
382 |         } else {
383 |             PSTVisibleAlertsCount--;
384 |         }
385 |     }
386 | }
387 | 
388 | - (void)showActionSheetWithSender:(id)sender fallbackView:(UIView *)view animated:(BOOL)animated {
389 |     UIActionSheet *actionSheet = self.actionSheet;
390 |     BOOL isIPad = UIDevice.currentDevice.userInterfaceIdiom == UIUserInterfaceIdiomPad;
391 |     if (isIPad && [sender isKindOfClass:UIBarButtonItem.class]) {
392 |         [actionSheet showFromBarButtonItem:sender animated:animated];
393 |     } else if ([sender isKindOfClass:UIToolbar.class]) {
394 |         [actionSheet showFromToolbar:sender];
395 |     } else if ([sender isKindOfClass:UITabBar.class]) {
396 |         [actionSheet showFromTabBar:sender];
397 |     } else if ([view isKindOfClass:UIToolbar.class]) {
398 |         [actionSheet showFromToolbar:(UIToolbar *)view];
399 |     } else if ([view isKindOfClass:UITabBar.class]) {
400 |         [actionSheet showFromTabBar:(UITabBar *)view];
401 |     } else if (isIPad && [sender isKindOfClass:UIView.class]) {
402 |         [actionSheet showFromRect:[sender bounds] inView:sender animated:animated];
403 |     } else if ([sender isKindOfClass:NSValue.class]) {
404 |         [actionSheet showFromRect:[sender CGRectValue] inView:view animated:animated];
405 |     } else {
406 |         [actionSheet showInView:view];
407 |     }
408 | }
409 | 
410 | - (void)dismissAnimated:(BOOL)animated completion:(void (^)(void))completion {
411 |     if ([self alertControllerAvailable]) {
412 |         [self.alertController dismissViewControllerAnimated:animated completion:completion];
413 |     } else {
414 |         // Make sure the completion block is called.
415 |         if (completion) {
416 |             [self addDidDismissBlock:^(PSTAlertAction *action) { completion(); }];
417 |         }
418 |         if (self.preferredStyle == PSTAlertControllerStyleActionSheet) {
419 |             [self.actionSheet dismissWithClickedButtonIndex:self.actionSheet.cancelButtonIndex animated:animated];
420 |         } else {
421 |             [self.alertView dismissWithClickedButtonIndex:self.alertView.cancelButtonIndex animated:animated];
422 |         }
423 |     }
424 | }
425 | 
426 | - (id)presentedObject {
427 |     if ([self alertControllerAvailable]) {
428 |         return self.alertController;
429 |     } else {
430 |         if (self.preferredStyle == PSTAlertControllerStyleActionSheet) {
431 |             return self.actionSheet;
432 |         } else {
433 |             return self.alertView;
434 |         }
435 |     }
436 | }
437 | 
438 | ///////////////////////////////////////////////////////////////////////////////////////////
439 | #pragma mark - Will/Did Dismiss Observers
440 | 
441 | - (void)addWillDismissBlock:(void (^)(PSTAlertAction *action))willDismissBlock {
442 |     NSParameterAssert(willDismissBlock);
443 |     self.willDismissBlocks = [[NSArray arrayWithArray:self.willDismissBlocks] arrayByAddingObject:willDismissBlock];
444 | }
445 | 
446 | - (void)addDidDismissBlock:(void (^)(PSTAlertAction *action))didDismissBlock {
447 |     NSParameterAssert(didDismissBlock);
448 |     self.didDismissBlocks = [[NSArray arrayWithArray:self.didDismissBlocks] arrayByAddingObject:didDismissBlock];
449 | }
450 | 
451 | ///////////////////////////////////////////////////////////////////////////////////////////
452 | #pragma mark - Memory Management
453 | 
454 | - (void)moveSheetToWeakStorage {
455 |     NSParameterAssert(self.strongSheetStorage);
456 | 
457 |     objc_setAssociatedObject(self.strongSheetStorage, _cmd, self, OBJC_ASSOCIATION_RETAIN_NONATOMIC); // bind lifetime
458 |     self.weakSheetStorage = self.strongSheetStorage;
459 |     self.strongSheetStorage = nil;
460 | }
461 | 
462 | ///////////////////////////////////////////////////////////////////////////////////////////
463 | #pragma mark - Execute Actions
464 | 
465 | - (PSTAlertAction *)actionForButtonIndex:(NSInteger)index {
466 |     return index >= 0 ? self.actions[index] : nil;
467 | }
468 | 
469 | - (void)performBlocks:(NSString *)blocksStorageName withAction:(PSTAlertAction *)alertAction {
470 |     // Load variable and nil out.
471 |     NSArray *blocks = [self valueForKey:blocksStorageName];
472 |     [self setValue:nil forKey:blocksStorageName];
473 | 
474 |     for (void (^block)(PSTAlertAction *action) in blocks) {
475 |         block(alertAction);
476 |     }
477 | }
478 | 
479 | - (void)viewWillDismissWithButtonIndex:(NSInteger)buttonIndex {
480 |     PSTAlertAction *action = [self actionForButtonIndex:buttonIndex];
481 |     self.executedAlertAction = action;
482 | 
483 |     [self performBlocks:PROPERTY(willDismissBlocks) withAction:action];
484 |     self.willDismissBlocks = nil;
485 | 
486 |     [self setIsShowingAlert:NO];
487 | }
488 | 
489 | - (void)viewDidDismissWithButtonIndex:(NSInteger)buttonIndex {
490 |     PSTAlertAction *action = [self actionForButtonIndex:buttonIndex];
491 |     [action performAction];
492 | 
493 |     [self performBlocks:PROPERTY(didDismissBlocks) withAction:action];
494 | }
495 | 
496 | ///////////////////////////////////////////////////////////////////////////////////////////
497 | #pragma mark - UIActionSheetDelegate
498 | 
499 | - (void)actionSheet:(UIActionSheet *)actionSheet willDismissWithButtonIndex:(NSInteger)buttonIndex {
500 |     [self viewWillDismissWithButtonIndex:buttonIndex];
501 | }
502 | 
503 | // Called when a button is clicked. The view will be automatically dismissed after this call returns.
504 | - (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {
505 |     [self viewDidDismissWithButtonIndex:buttonIndex];
506 | }
507 | 
508 | ///////////////////////////////////////////////////////////////////////////////////////////
509 | #pragma mark - UIAlertViewDelegate
510 | 
511 | - (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex {
512 |     [self viewWillDismissWithButtonIndex:buttonIndex];
513 | }
514 | 
515 | - (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
516 |     [self viewDidDismissWithButtonIndex:buttonIndex];
517 | }
518 | 
519 | @end
520 | 
521 | @implementation PSTAlertController (Convenience)
522 | 
523 | + (instancetype)actionWithTitle:(NSString *)title handler:(void (^)(PSTAlertAction *action))handler {
524 |     return [[self alloc] initWithTitle:title style:PSTAlertActionStyleDefault handler:handler];
525 | }
526 | 
527 | + (instancetype)alertWithTitle:(NSString *)title message:(NSString *)message {
528 |     return [[self alloc] initWithTitle:title message:message preferredStyle:PSTAlertControllerStyleAlert];
529 | }
530 | 
531 | + (instancetype)actionSheetWithTitle:(NSString *)title {
532 |     return [[self alloc] initWithTitle:title message:nil preferredStyle:PSTAlertControllerStyleActionSheet];
533 | }
534 | 
535 | + (instancetype)presentDismissableAlertWithTitle:(NSString *)title message:(NSString *)message controller:(UIViewController *)controller {
536 |     PSTAlertController *alertController = [self alertWithTitle:title message:message];
537 |     [alertController addAction:[PSTAlertAction actionWithTitle:NSLocalizedString(@"Dismiss", @"") style:PSTAlertActionStyleCancel handler:NULL]];
538 |     [alertController showWithSender:nil controller:controller animated:YES completion:NULL];
539 |     return alertController;
540 | }
541 | 
542 | + (instancetype)presentDismissableAlertWithTitle:(NSString *)title error:(NSError *)error controller:(UIViewController *)controller {
543 |     NSString *message = error.localizedDescription;
544 |     if (error.localizedFailureReason.length > 0) {
545 |         message = [NSString stringWithFormat:@"%@ (%@)", error.localizedDescription, error.localizedFailureReason];
546 |     }
547 | 
548 |     return [self presentDismissableAlertWithTitle:title message:message controller:controller];
549 | }
550 | 
551 | - (void)addCancelActionWithHandler:(void (^)(PSTAlertAction *action))handler {
552 |     [self addAction:[PSTAlertAction actionWithTitle:NSLocalizedString(@"Cancel", @"") style:PSTAlertActionStyleCancel handler:handler]];
553 | }
554 | 
555 | @end
556 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | PSTAlertController
 2 | ==================
 3 | 
 4 | API similar to `UIAlertController`, backwards compatible to iOS 7. Will use the new shiny API when you run iOS 8.
 5 | 
 6 | We cheat a bit by having `PSTAlertController` superclass be `NSObject`, but for most use cases it's still a lot more convenient than using `UIAlertView`/`UIActionSheet`.
 7 | 
 8 | Functions that are only possible since `UIAlertController` are not back-ported. This is a simple wrapper to make your life more convenient, not a complete rewrite.
 9 | 
10 | Written for [PSPDFKit, The leading framework for displaying and annotating PDFs in your iOS apps.](https://pspdfkit.com/).
11 | It's a commercial library, but sometimes I just love to share.
12 | 
13 | ## Compatbility
14 | 
15 | Tested with iOS 7-9, Xcode 7 and ARC.
16 | 
17 | ## License
18 | 
19 | MIT, see LICENSE file.
20 | 


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