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New: Added protocol CPImageDelegate.

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Added protocol CPImageDelegate.
Also, now, delegate methods are called as we are used to do it in Cappuccino
This commit is contained in:
Alexandre Wilhelm
2014-03-27 13:52:59 -07:00
parent 23f04b3d09
commit 0a85b4b383
1 changed files with 37 additions and 9 deletions
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AppKit/CPImage.j
+37 -9
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@@ -30,6 +30,20 @@
@import "CGGeometry.j"
@import "CPCompatibility.j"
@protocol CPImageDelegate <CPObject>
@optional
- (void)imageDidLoad:(CPImage)anImage;
- (void)imageDidError:(CPImage)anImage;
- (void)imageDidAbort:(CPImage)anImage;
@end
var CPImageDelegate_imageDidLoad_ = 1 << 1,
CPImageDelegate_imageDidError_ = 1 << 2,
CPImageDelegate_imageDidAbort_ = 1 << 3;
CPImageLoadStatusInitialized = 0;
CPImageLoadStatusLoading = 1;
CPImageLoadStatusCompleted = 2;
@@ -119,14 +133,15 @@ function CPAppKitImage(aFilename, aSize)
*/
@implementation CPImage : CPObject
{
CGSize _size;
CPString _filename;
CPString _name;
CGSize _size;
CPString _filename;
CPString _name;
id _delegate;
unsigned _loadStatus;
id <CPImageDelegate> _delegate;
unsigned _loadStatus;
unsigned _implementedDelegateMethods;
Image _image;
Image _image;
}
- (id)init
@@ -321,7 +336,20 @@ function CPAppKitImage(aFilename, aSize)
*/
- (void)setDelegate:(id)aDelegate
{
if (_delegate === aDelegate)
return;
_delegate = aDelegate;
_implementedDelegateMethods = 0;
if ([_delegate respondsToSelector:@selector(imageDidLoad:)])
_implementedDelegateMethods |= CPImageDelegate_imageDidLoad_;
if ([_delegate respondsToSelector:@selector(imageDidError:)])
_implementedDelegateMethods |= CPImageDelegate_imageDidError_;
if ([_delegate respondsToSelector:@selector(imageDidAbort:)])
_implementedDelegateMethods |= CPImageDelegate_imageDidAbort_;
}
/*!
@@ -457,7 +485,7 @@ function CPAppKitImage(aFilename, aSize)
postNotificationName:CPImageDidLoadNotification
object:self];
if ([_delegate respondsToSelector:@selector(imageDidLoad:)])
if (_implementedDelegateMethods & CPImageDelegate_imageDidLoad_)
[_delegate imageDidLoad:self];
}
@@ -466,7 +494,7 @@ function CPAppKitImage(aFilename, aSize)
{
_loadStatus = CPImageLoadStatusReadError;
if ([_delegate respondsToSelector:@selector(imageDidError:)])
if (_implementedDelegateMethods & CPImageDelegate_imageDidError_)
[_delegate imageDidError:self];
}
@@ -475,7 +503,7 @@ function CPAppKitImage(aFilename, aSize)
{
_loadStatus = CPImageLoadStatusCancelled;
if ([_delegate respondsToSelector:@selector(imageDidAbort:)])
if (_implementedDelegateMethods & CPImageDelegate_imageDidAbort_)
[_delegate imageDidAbort:self];
}