Initial commit

2017-08-15 16:59:01 +08:00
commit bdc83e07ef
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+/*
+ 
+ MIT License (MIT)
+ 
+ Copyright (c) 2015 Clement CN Tsang
+ 
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+ 
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+ 
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ 
+ */
+
+#import "PureLayout.h"
+#import "CTAssetsPickerDefines.h"
+#import "CTAssetsGridViewCell.h"
+#import "CTAssetsGridSelectedView.h"
+#import "PHAsset+CTAssetsPickerController.h"
+#import "NSDateFormatter+CTAssetsPickerController.h"
+#import "UIImage+CTAssetsPickerController.h"
+
+
+
+@interface CTAssetsGridViewCell ()
+
+@property (nonatomic, strong) PHAsset *asset;
+
+@property (nonatomic, strong) UIImageView *disabledImageView;
+@property (nonatomic, strong) UIView *disabledView;
+@property (nonatomic, strong) UIView *highlightedView;
+@property (nonatomic, strong) CTAssetsGridSelectedView *selectedView;
+
+@property (nonatomic, assign) BOOL didSetupConstraints;
+
+@end
+
+
+
+
+
+@implementation CTAssetsGridViewCell
+
+- (instancetype)initWithFrame:(CGRect)frame
+{
+    if (self = [super initWithFrame:frame])
+    {
+        self.opaque                 = YES;
+        self.isAccessibilityElement = YES;
+        self.accessibilityTraits    = UIAccessibilityTraitImage;
+        self.enabled                = YES;
+        self.showsSelectionIndex    = NO;
+        
+        [self setupViews];
+    }
+    
+    return self;
+}
+
+
+#pragma mark - Setup
+
+- (void)setupViews
+{
+    CTAssetThumbnailView *thumbnailView = [CTAssetThumbnailView newAutoLayoutView];
+    self.backgroundView = thumbnailView;
+    
+    UIImage *disabledImage = [UIImage ctassetsPickerImageNamed:@"GridDisabledAsset"];
+    disabledImage = [disabledImage imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
+    UIImageView *disabledImageView = [[UIImageView alloc] initWithImage:disabledImage];
+    disabledImageView.tintColor = CTAssetsPikcerThumbnailTintColor;
+    self.disabledImageView = disabledImageView;
+    
+    UIView *disabledView = [UIView newAutoLayoutView];
+    disabledView.backgroundColor = CTAssetsGridViewCellDisabledColor;
+    disabledView.hidden = YES;
+    [disabledView addSubview:self.disabledImageView];
+    self.disabledView = disabledView;
+    [self addSubview:self.disabledView];
+    
+    UIView *highlightedView = [UIView newAutoLayoutView];
+    highlightedView.backgroundColor = CTAssetsGridViewCellHighlightedColor;
+    highlightedView.hidden = YES;
+    self.highlightedView = highlightedView;
+    [self addSubview:self.highlightedView];
+    
+    CTAssetsGridSelectedView *selectedView = [CTAssetsGridSelectedView newAutoLayoutView];
+    selectedView.hidden = YES;
+    self.selectedView = selectedView;
+    [self addSubview:self.selectedView];
+}
+
+#pragma mark - Apperance
+
+- (UIColor *)disabledColor
+{
+    return self.disabledView.backgroundColor;
+}
+
+- (void)setDisabledColor:(UIColor *)disabledColor
+{
+    UIColor *color = (disabledColor) ? disabledColor : CTAssetsGridViewCellDisabledColor;
+    self.disabledView.backgroundColor = color;
+}
+
+- (UIColor *)highlightedColor
+{
+    return self.highlightedView.backgroundColor;
+}
+
+- (void)setHighlightedColor:(UIColor *)highlightedColor
+{
+    UIColor *color = (highlightedColor) ? highlightedColor : CTAssetsGridViewCellHighlightedColor;
+    self.highlightedView.backgroundColor = color;
+}
+
+
+#pragma mark - Accessors
+
+- (void)setEnabled:(BOOL)enabled
+{
+    _enabled = enabled;
+    self.disabledView.hidden = enabled;
+}
+
+- (void)setHighlighted:(BOOL)highlighted
+{
+    super.highlighted = highlighted;
+    self.highlightedView.hidden = !highlighted;
+}
+
+- (void)setSelected:(BOOL)selected
+{
+    super.selected = selected;
+    self.selectedView.hidden = !selected;
+}
+
+- (void)setShowsSelectionIndex:(BOOL)showsSelectionIndex
+{
+    _showsSelectionIndex = showsSelectionIndex;
+    self.selectedView.showsSelectionIndex = showsSelectionIndex;
+}
+
+- (void)setSelectionIndex:(NSUInteger)selectionIndex
+{
+    _selectionIndex = selectionIndex;
+    self.selectedView.selectionIndex = selectionIndex;
+}
+
+
+#pragma mark - Update auto layout constraints
+
+- (void)updateConstraints
+{
+    if (!self.didSetupConstraints)
+    {
+        [NSLayoutConstraint autoSetPriority:UILayoutPriorityRequired forConstraints:^{
+            [self.backgroundView autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsZero];
+            [self.disabledView autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsZero];
+            [self.highlightedView autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsZero];
+            [self.selectedView autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsZero];
+        }];
+        
+        [self.disabledImageView autoCenterInSuperview];
+
+        self.didSetupConstraints = YES;
+    }
+    
+    [super updateConstraints];
+}
+
+
+- (void)bind:(PHAsset *)asset
+{
+    self.asset = asset;
+    
+    [self setNeedsUpdateConstraints];
+    [self updateConstraintsIfNeeded];
+}
+
+
+#pragma mark - Accessibility Label
+
+- (NSString *)accessibilityLabel
+{
+    if (self.selectedView.accessibilityLabel)
+        return [NSString stringWithFormat:@"%@, %@", self.selectedView.accessibilityLabel, self.asset.accessibilityLabel];
+    else
+        return self.asset.accessibilityLabel;
+}
+
+@end