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Media Manager refactoring (in progress)

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This commit is contained in:
giomfo
2015-01-08 18:20:34 +01:00
parent 53bc918c36
commit 8d5f726303
5 changed files with 168 additions and 137 deletions
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matrixConsole/ViewController/SettingsViewController.m
+51 -7
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@@ -197,6 +197,8 @@ NSString* const kCommandsDescriptionText = @"The following commands are availabl
}
- (void)reset {
// Remove observers
[[NSNotificationCenter defaultCenter] removeObserver:self];
// Cancel picture loader (if any)
if (imageLoader) {
[MediaManager cancel:imageLoader];
@@ -434,6 +436,8 @@ NSString* const kCommandsDescriptionText = @"The following commands are availabl
- (void)updateUserPicture:(NSString *)avatar_url {
if (currentPictureURL == nil || [currentPictureURL isEqualToString:avatar_url] == NO) {
// Remove any pending observers
[[NSNotificationCenter defaultCenter] removeObserver:self];
// Cancel previous loader (if any)
if (imageLoader) {
[MediaManager cancel:imageLoader];
@@ -442,13 +446,28 @@ NSString* const kCommandsDescriptionText = @"The following commands are availabl
currentPictureURL = [avatar_url isEqual:[NSNull null]] ? nil : avatar_url;
if (currentPictureURL) {
// Load user's picture
imageLoader = [MediaManager loadPicture:currentPictureURL success:^(UIImage *image) {
[self updateAvatarImage:image];
} failure:^(NSError *error) {
// Reset picture URL in order to try next time
currentPictureURL = nil;
}];
// Check whether the image download is in progress
id loader = [MediaManager mediaLoaderForURL:currentPictureURL];
if (loader) {
// Add observers
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaDownloadEnd:) name:kMediaDownloadDidFinishNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaDownloadEnd:) name:kMediaDownloadDidFailNotification object:nil];
} else {
// Retrieve the image from cache
UIImage* image = [MediaManager loadCachePicture:currentPictureURL];
if (image) {
[self updateAvatarImage:image];
} else {
// Cancel potential download in progress
if (imageLoader) {
[MediaManager cancel:imageLoader];
}
// Add observers
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaDownloadEnd:) name:kMediaDownloadDidFinishNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaDownloadEnd:) name:kMediaDownloadDidFailNotification object:nil];
imageLoader = [MediaManager downloadPicture:currentPictureURL];
}
}
} else {
// Set placeholder
[self updateAvatarImage:[UIImage imageNamed:@"default-profile"]];
@@ -456,6 +475,31 @@ NSString* const kCommandsDescriptionText = @"The following commands are availabl
}
}
- (void)onMediaDownloadEnd:(NSNotification *)notif {
// sanity check
if ([notif.object isKindOfClass:[NSString class]]) {
NSString* url = notif.object;
if ([url isEqualToString:currentPictureURL]) {
// update the image
UIImage* image = [MediaManager loadCachePicture:currentPictureURL];
if (image == nil) {
image = [UIImage imageNamed:@"default-profile"];
}
[self updateAvatarImage:image];
// remove the observers
[[NSNotificationCenter defaultCenter] removeObserver:self];
imageLoader = nil;
if ([notif.name isEqualToString:kMediaDownloadDidFailNotification]) {
// Reset picture URL in order to try next time
currentPictureURL = nil;
}
}
}
}
#pragma mark - KVO
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {