imported photo picker library

Classes/ALAssetsLibrary+GCImagePickerControllerAdditions.h

@@ -0,0 +1,54 @@
+/*
+ 
+ Copyright (C) 2011 GUI Cocoa, LLC.
+ 
+ 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 <AssetsLibrary/AssetsLibrary.h>
+
+@interface ALAssetsLibrary (GCImagePickerControllerAdditions)
+
+
+/*
+ get assets groups sorted the same as seen in UIImagePickerController
+ 
+ types: filter group types. pass ALAssetGroupAll for all groups.
+ filter: filter the types of assets shown. groups with no assets
+    matching the filter will be omitted.
+ error: will be populated if no groups can be loaded.
+ 
+ returns: an array of groups.
+ */
+- (NSArray *)gc_assetGroupsWithTypes:(ALAssetsGroupType)types assetsFilter:(ALAssetsFilter *)filter error:(NSError **)error;
+
+/*
+ get assets belonging to a certain group.
+ 
+ identifier: the persistent identifier of the group.
+ filter: filter the types of assets returned.
+ group: will be populated with the resulting group.
+ error: will be populated if loading assets fails.
+ 
+ returns: an array of groups.
+ */
+- (NSArray *)gc_assetsInGroupWithIdentifier:(NSString *)identifier filter:(ALAssetsFilter *)filter group:(ALAssetsGroup **)inGroup error:(NSError **)inError;
+
+@end

Classes/ALAssetsLibrary+GCImagePickerControllerAdditions.m

@@ -0,0 +1,134 @@
+/*
+ 
+ Copyright (C) 2011 GUI Cocoa, LLC.
+ 
+ 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 "ALAssetsLibrary+GCImagePickerControllerAdditions.h"
+
+@implementation ALAssetsLibrary (GCImagePickerControllerAdditions)
+- (NSArray *)gc_assetGroupsWithTypes:(ALAssetsGroupType)types assetsFilter:(ALAssetsFilter *)filter error:(NSError **)inError {
+
+    // this will be returned
+    __block NSMutableArray *groups = nil;
+
+    // load groups
+    NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
+    [self
+     enumerateGroupsWithTypes:types
+     usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
+         if (group) {
+             [group setAssetsFilter:filter];
+             if ([group numberOfAssets]) {
+                 NSNumber *type = [group valueForProperty:ALAssetsGroupPropertyType];
+                 NSMutableArray *groupsByType = [dictionary objectForKey:type];
+                 if (groupsByType == nil) {
+                     groupsByType = [NSMutableArray arrayWithCapacity:1];
+                     [dictionary setObject:groupsByType forKey:type];
+                 }
+                 [groupsByType addObject:group];
+             }
+         }
+         else {
+
+             // make our groups array
+             groups = [[NSMutableArray alloc] init];
+
+             // sort groups into final container
+             NSArray *typeNumbers = [NSArray arrayWithObjects:
+                                     [NSNumber numberWithUnsignedInteger:ALAssetsGroupSavedPhotos],
+                                     [NSNumber numberWithUnsignedInteger:ALAssetsGroupAlbum],
+                                     [NSNumber numberWithUnsignedInteger:ALAssetsGroupEvent],
+                                     [NSNumber numberWithUnsignedInteger:ALAssetsGroupFaces],
+                                     nil];
+             for (NSNumber *type in typeNumbers) {
+                 NSArray *groupsByType = [dictionary objectForKey:type];
+                 [groups addObjectsFromArray:groupsByType];
+                 [dictionary removeObjectForKey:type];
+             }
+
+             // get any groups we do not have contants for
+             for (NSNumber *type in [dictionary keysSortedByValueUsingSelector:@selector(compare:)]) {
+                 NSArray *groupsByType = [dictionary objectForKey:type];
+                 [groups addObjectsFromArray:groupsByType];
+                 [dictionary removeObjectForKey:type];
+             }
+
+         }
+     }
+     failureBlock:^(NSError *error) {
+         if (inError) { *inError = [error retain]; }
+         groups = [[NSArray alloc] init];
+     }];
+
+    // wait
+    while (groups == nil) {
+        CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, NO);
+    }
+
+    // return
+    if (inError) { [*inError autorelease]; }
+    return [groups autorelease];
+
+}
+- (NSArray *)gc_assetsInGroupWithIdentifier:(NSString *)identifier filter:(ALAssetsFilter *)filter group:(ALAssetsGroup **)inGroup error:(NSError **)inError {
+
+    // this will be returned
+    __block NSMutableArray *assets = nil;
+
+    [self
+     enumerateGroupsWithTypes:ALAssetsGroupAll
+     usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
+         if (group) {
+             NSString *groupIdentifier = [group valueForProperty:ALAssetsGroupPropertyPersistentID];
+             if ([groupIdentifier isEqualToString:identifier]) {
+                 [group setAssetsFilter:filter];
+                 assets = [[NSMutableArray alloc] initWithCapacity:[group numberOfAssets]];
+                 [group enumerateAssetsUsingBlock:^(ALAsset *result, NSUInteger index, BOOL *stop) {
+                     if (result) { [assets addObject:result]; }
+                 }];
+                 if (inGroup) { *inGroup = [group retain]; }
+                 *stop = YES;
+             }
+         }
+         else {
+             if (assets == nil) {
+                 assets = [[NSArray alloc] init];
+             }
+         }
+     }
+     failureBlock:^(NSError *error) {
+         if (inError) { *inError = [error retain]; }
+         assets = [[NSArray alloc] init];
+     }];
+
+    // wait
+    while (assets == nil) {
+        CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, NO);
+    }
+
+    // return
+    if (inGroup) { [*inGroup autorelease]; }
+    if (inError) { [*inError autorelease]; }
+    return [assets autorelease];
+
+}
+@end

Classes/GCIPAssetPickerCell.h

@@ -0,0 +1,38 @@
+/*
+ 
+ Copyright (C) 2011 GUI Cocoa, LLC.
+ 
+ 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 <UIKit/UIKit.h>
+
+// cell designed to display a grid of assets
+@interface GCIPAssetPickerCell : UITableViewCell {
+
+}
+
+// number of columns for the cell to display
+@property (nonatomic, assign) NSUInteger numberOfColumns;
+
+// set assets to display and pass a set of selected asset urls
+- (void)setAssets:(NSArray *)assets selected:(NSSet *)selected;
+
+@end

Classes/GCIPAssetPickerCell.m

@@ -0,0 +1,102 @@
+/*
+ 
+ Copyright (C) 2011 GUI Cocoa, LLC.
+ 
+ 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 <AssetsLibrary/AssetsLibrary.h>
+
+#import "GCIPAssetPickerCell.h"
+#import "GCIPAssetPickerView.h"
+
+@implementation GCIPAssetPickerCell
+
+@synthesize numberOfColumns = __numberOfColumns;
+
+#pragma mark - object methods
+- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)identifier {
+    self = [super initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
+    if (self) {
+        self.selectionStyle = UITableViewCellSelectionStyleNone;
+    }
+    return self;
+}
+- (void)setNumberOfColumns:(NSUInteger)count {
+
+    // check for same value
+    if (count == __numberOfColumns) {
+        return;
+    }
+
+    // save value
+    __numberOfColumns = count;
+
+    // set needs layout
+    [self setNeedsLayout];
+
+}
+- (void)setAssets:(NSArray *)assets selected:(NSSet *)selected {
+
+    // setup stuff
+    NSUInteger count = [assets count];
+
+    for (NSUInteger index = 0; index < self.numberOfColumns; index++) {
+
+        // get view
+        NSUInteger tag = index + 1;
+        GCIPAssetPickerView *assetView = (GCIPAssetPickerView *)[self.contentView viewWithTag:tag];
+
+        // create view if we need one
+        if (assetView == nil && index < count) {
+            assetView = [[GCIPAssetPickerView alloc] initWithFrame:CGRectZero];
+            assetView.tag = tag;
+            [self.contentView addSubview:assetView];
+            [assetView release];
+        }
+
+        // setup view
+        ALAsset *asset = nil;
+        if (index < count) {
+            asset = [assets objectAtIndex:index];
+            NSURL *assetURL = [[asset defaultRepresentation] url];
+            [assetView setSelected:[selected containsObject:assetURL]];
+        }
+        [assetView setAsset:asset];
+
+    }
+
+}
+- (void)layoutSubviews {
+    [super layoutSubviews];
+    CGSize viewSize = self.contentView.bounds.size;
+    CGSize tileSize = { 0.0, viewSize.height - 4.0 };
+    NSUInteger columns = self.numberOfColumns;
+    NSUInteger spaces = columns + 1;
+    CGFloat totalHorizontalSpace = (CGFloat)spaces * 4.0;
+    CGFloat occupiedWidth = viewSize.width - totalHorizontalSpace;
+    tileSize.width = occupiedWidth / (CGFloat)columns;
+    [self.contentView.subviews enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop){
+        CGRect frame = CGRectMake(4.0 + (4.0 + tileSize.width) * (CGFloat)idx, 0.0, tileSize.width, tileSize.height);
+        [(UIView *)obj setFrame:frame];
+    }];
+}
+
+@end

Classes/GCIPAssetPickerController.h

@@ -0,0 +1,38 @@
+/*
+ 
+ Copyright (C) 2011 GUI Cocoa, LLC.
+ 
+ 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 <MessageUI/MessageUI.h>
+
+#import "GCIPTableViewController.h"
+
+// select an asset from a given group
+@interface GCIPAssetPickerController : GCIPTableViewController
+<UIActionSheetDelegate, MFMailComposeViewControllerDelegate> {
+
+}
+
+// the group to browse
+@property (nonatomic, copy) NSString *groupIdentifier;
+
+@end