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Public rooms search: Add an expiration time (10s) on public rooms list data to avoid to make request each time the user enter a new letter

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manuroe
2015-12-18 11:41:39 +01:00
parent 76689ada32
commit 21ce23fa8b
4 changed files with 84 additions and 53 deletions
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Vector/Model/RoomList/PublicRoomsDirectoryDataSource.m
+71 -44
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@@ -16,77 +16,104 @@
#import "PublicRoomsDirectoryDataSource.h"
#pragma mark - Constants definitions
// Time in seconds from which public rooms data is considered as obsolete
double const kPublicRoomsDirectoryDataExpiration = 10;
#pragma mark - PublicRoomsDirectoryDataSource
@interface PublicRoomsDirectoryDataSource ()
{
// The pending request to refresh public rooms data.
MXHTTPOperation *publicRoomsRequest;
// TODO
//NSDate *lastRefreshDate;
// The date of the last fetched data.
NSDate *lastRefreshDate;
}
@end
@implementation PublicRoomsDirectoryDataSource
- (void)setSearchPattern:(NSString *)searchTerm
- (void)setFilter:(NSString *)searchTerm
{
if ([searchTerm isEqualToString:_searchPattern])
if (![searchTerm isEqualToString:_filter])
{
return;
_filter = searchTerm;
[self refreshPublicRooms];
}
_searchPattern = searchTerm;
[self refreshPublicRooms];
}
#pragma mark - Private methods
- (void)refreshPublicRooms
{
// Cancel the previous request
if (publicRoomsRequest)
// Do not refresh data if it is not too old
if (lastRefreshDate && -lastRefreshDate.timeIntervalSinceNow < kPublicRoomsDirectoryDataExpiration)
{
[publicRoomsRequest cancel];
}
[self setState:MXKDataSourceStatePreparing];
publicRoomsRequest = [self.mxSession.matrixRestClient publicRooms:^(NSArray *rooms) {
publicRoomsRequest = nil;
// Apply filter if any
if (_searchPattern)
{
NSMutableArray *matchingRooms = [NSMutableArray array];
for (MXPublicRoom *publicRoom in rooms)
{
if ([matchingRooms indexOfObject:publicRoom] == NSNotFound)
{
if ([publicRoom.displayname rangeOfString:_searchPattern options:NSCaseInsensitiveSearch].location != NSNotFound)
{
[matchingRooms addObject:publicRoom];
}
}
}
_rooms = matchingRooms;
}
else
{
_rooms = rooms;
}
// Apply the new filter on the current data
[self refreshFilteredPublicRooms];
[self setState:MXKDataSourceStateReady];
}
else
{
// Cancel the previous request
if (publicRoomsRequest)
{
[publicRoomsRequest cancel];
}
} failure:^(NSError *error) {
NSLog(@"[PublicRoomsDirectoryDataSource] Failed to fecth public rooms. Error: %@", error);
[self setState:MXKDataSourceStatePreparing];
[self setState:MXKDataSourceStateFailed];
}];
lastRefreshDate = [NSDate date];
// Get the public rooms from the server
publicRoomsRequest = [self.mxSession.matrixRestClient publicRooms:^(NSArray *rooms) {
_rooms = rooms;
lastRefreshDate = [NSDate date];
publicRoomsRequest = nil;
[self refreshFilteredPublicRooms];
[self setState:MXKDataSourceStateReady];
} failure:^(NSError *error) {
NSLog(@"[PublicRoomsDirectoryDataSource] Failed to fecth public rooms. Error: %@", error);
[self setState:MXKDataSourceStateFailed];
}];
}
}
- (void)refreshFilteredPublicRooms
{
// Apply filter if any
if (_filter)
{
NSMutableArray *filteredRooms = [NSMutableArray array];
for (MXPublicRoom *publicRoom in _rooms)
{
if ([filteredRooms indexOfObject:publicRoom] == NSNotFound)
{
if ([publicRoom.displayname rangeOfString:_filter options:NSCaseInsensitiveSearch].location != NSNotFound)
{
[filteredRooms addObject:publicRoom];
}
}
}
_filteredRooms = filteredRooms;
}
else
{
_filteredRooms = _rooms;
}
}
// Update the MXKDataSource state and the delegate
- (void)setState:(MXKDataSourceState)newState
{