Synnefo » Pithos iOS Client

//

//  ContainersViewController.m

//  OpenStack

//

//  Created by Mike Mayo on 12/7/10.

//  The OpenStack project is provided under the Apache 2.0 license.

//

#import "NSObject+Conveniences.h"

#import "ContainersViewController.h"

#import "OpenStackAccount.h"

#import "Container.h"

#import "AddContainerViewController.h"

#import "UIViewController+Conveniences.h"

#import "FolderViewController.h"

#import "ContainerDetailViewController.h"

#import "AccountManager.h"

#import "OpenStackAppDelegate.h"

#import "RootViewController.h"

#import "APICallback.h"

#import "GetCDNContainersRequest.h"

#import "Provider.h"

#import "AccountHomeViewController.h"

@implementation ContainersViewController

@synthesize tableView, account, accountUsageInfo, accountHomeViewController, containerDetailViewController;

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {

    return (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) || (toInterfaceOrientation == UIInterfaceOrientationPortrait);

}

#pragma mark -

#pragma mark View lifecycle

- (void)viewDidLoad {

    [super viewDidLoad];

    self.navigationItem.title = @"Containers";

    [self addAddButton]; 

    [self addHomeButton];

    if (!account.shared && !account.sharingAccount && containersLoaded) {

        if (![self.account.containers objectForKey:@"pithos"])

            [self createContainerWithName:@"pithos"];

        if (![self.account.containers objectForKey:@"trash"])

            [self createContainerWithName:@"trash"];

    }

}

- (void)viewWillAppear:(BOOL)animated {

    [super viewWillAppear:animated];

    if ([self.account.containers count] == 0) {

        self.tableView.allowsSelection = NO;

        self.tableView.scrollEnabled = NO;

        [self.tableView reloadData];        

    }   

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

        if ([self.account.containers count] == 0 ) {

            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];

            [self.tableView selectRowAtIndexPath:indexPath animated:NO scrollPosition:UITableViewScrollPositionNone];

            [self tableView:self.tableView didSelectRowAtIndexPath:indexPath];

        }

        else if ([self.tableView indexPathForSelectedRow].row == 0 && [self.tableView indexPathForSelectedRow].section == 0) {

            ContainerDetailViewController *vc = [[ContainerDetailViewController alloc] initWithNibName:@"ContainerDetailViewController" bundle:nil];

            [self presentPrimaryViewController:vc];

            [vc release]; 

        }

    }

    if (!containersLoaded && [self.account.containers count] == 0) {

        [self refreshButtonPressed:nil];

    }

}

- (void)viewDidDisappear:(BOOL)animated {

    [super viewDidDisappear:animated];

}

#pragma mark -

#pragma mark Button Handlers

- (void)addButtonPressed:(id)sender {

    AddContainerViewController *vc = [[AddContainerViewController alloc] initWithNibName:@"AddContainerViewController" bundle:nil];

    vc.containersViewController = self;

    vc.account = account;

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

        vc.modalPresentationStyle = UIModalPresentationFormSheet;

        OpenStackAppDelegate *app = [[UIApplication sharedApplication] delegate];

        if (app.rootViewController.popoverController != nil) {

            [app.rootViewController.popoverController dismissPopoverAnimated:YES];

        }

    }                

    [self presentModalViewControllerWithNavigation:vc];

    [vc release];

}

- (IBAction)homeButtonPressed:(id)sender {

    [self.navigationController popToViewController:accountHomeViewController animated:YES];

}

- (void)enableRefreshButton {

    refreshButton.enabled = YES;

    [self hideToolbarActivityMessage];

    if (!account.sharingAccount)

        [self showToolbarInfoMessage:accountUsageInfo];

}

- (void)refreshButtonPressed:(id)sender {

    refreshButton.enabled = NO;

        //BOOL hadZeroContainers = [self.account.containers count] == 0;

    if (!account.sharingAccount)

        [self hideToolbarInfoMessage];

    [self showToolbarActivityMessage:@"Refreshing containers..."];

    [[self.account.manager getContainers] success:^(OpenStackRequest *request) {

        self.account.containers = [request containers];

        self.account.containerCount = [self.account.containers count];

        self.account.totalBytesUsed = [[request.responseHeaders objectForKey:@"X-Account-Bytes-Used"] longLongValue];

        self.account.quota = [[request.responseHeaders objectForKey:@"X-Account-Policy-Quota"] longLongValue];

        self.accountUsageInfo = [NSString stringWithFormat:@"%@ used, %@ available",

                                 [NSObject osxStyleHumanizedBytes:self.account.totalBytesUsed],

                                 [NSObject osxStyleHumanizedBytes:self.account.quota]];

        [self.account persist];

        containersLoaded = YES;

        [self enableRefreshButton];

        [self.tableView reloadData];

        //GetCDNContainersRequest *cdnRequest = [GetCDNContainersRequest request:self.account];

        //[cdnRequest startAsynchronous];

    } failure:^(OpenStackRequest *request) {

        containersLoaded = NO;

        [self enableRefreshButton];

        if (request.responseStatusCode != 0) {

            [self alert:@"There was a problem loading your containers." request:request];

        }

    }];

}

#pragma mark -

#pragma mark Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    return 1;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

    if ([self.account.containers count] == 0) {

        self.tableView.allowsSelection = NO;

        self.tableView.scrollEnabled = NO;

    } else {

        self.tableView.allowsSelection = YES;

        self.tableView.scrollEnabled = YES;

    }

    if (!containersLoaded && [self.account.containers count] == 0) {

        return 0;

    } else {

        return MAX(1, [account.containers count]);    

    }

}

- (CGFloat)tableView:(UITableView *)aTableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {

    if ([account.containers count] == 0) {

        return aTableView.frame.size.height;

    } else {

        return aTableView.rowHeight;

    }

}

- (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    if (containersLoaded && [self.account.containers count] == 0) {

        NSString *noContainersTitle = self.account.shared ? @"No shared containers" : @"No containers";

        NSString *noContainersSubtitle = self.account.shared ? @"" : @"Tap the + button to create a new container";

        self.navigationItem.rightBarButtonItem.enabled = !self.account.shared;

        return [self tableView:tableView emptyCellWithImage:

                [UIImage imageNamed:@"empty-containers.png"]

                         title:noContainersTitle

                      subtitle:noContainersSubtitle];

    } else {   

        static NSString *CellIdentifier = @"Cell";

        UITableViewCell *cell = [aTableView dequeueReusableCellWithIdentifier:CellIdentifier];

        if (cell == nil) {

            cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];

            if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

                cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

            } else {

                cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;

            }

        }

        Container *container = [self.account.pithosSortedContainers objectAtIndex:indexPath.row];

        cell.textLabel.text = container.name;

        if ([container.name isEqualToString:@"pithos"])

            cell.imageView.image = [UIImage imageNamed:@"PithosContainerIcon.png"];

        else if ([container.name isEqualToString:@"trash"])

            cell.imageView.image = [UIImage imageNamed:@"TrashIcon.png"];

        else

            cell.imageView.image = [UIImage imageNamed:@"ContainerIcon.png"];

        if (!self.account.sharingAccount)

            cell.detailTextLabel.text = [container osxStyleHumanizedSize];

        return cell;

    }

}

#pragma mark -

#pragma mark Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    Container *container = nil;

    if ([account.containers count] > 0) {

        container = [self.account.pithosSortedContainers objectAtIndex:indexPath.row];

        FolderViewController *vc = [[FolderViewController alloc] initWithNibName:@"FolderViewController" bundle:nil];

        vc.account = self.account;

        vc.container = container;

        vc.folder = container.rootFolder;

        vc.containersViewController = self;

        vc.selectedContainerIndexPath = indexPath;

        [self.navigationController pushViewController:vc animated:YES];

        [vc release];

        [self.tableView deselectRowAtIndexPath:indexPath animated:YES];

    }

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

        ContainerDetailViewController *vc = [[ContainerDetailViewController alloc] initWithNibName:@"ContainerDetailViewController" bundle:nil];

        vc.account = self.account;

        vc.container = container;

        vc.containersViewController = self;

        vc.selectedContainerIndexPath = indexPath;

        [self presentPrimaryViewController:vc];

        self.containerDetailViewController = vc;

        [vc release];

    }

}

- (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath {

    Container *container = nil;

    if ([account.containers count] > 0) {

        container = [self.account.pithosSortedContainers objectAtIndex:indexPath.row];

    }

    ContainerDetailViewController *vc = [[ContainerDetailViewController alloc] initWithNibName:@"ContainerDetailViewController" bundle:nil];

    vc.account = self.account;

    vc.container = container;

    vc.containersViewController = self;

    vc.selectedContainerIndexPath = indexPath;

    [self.navigationController pushViewController:vc animated:YES];

    [vc release];

}

#pragma mark -

#pragma mark Helper methods

- (NSString *)humanReadableSize:(unsigned long long)bytes {

    NSString *sizeUnit = @"bytes";

    double sizeInBytes = bytes; 

    if (bytes > 1023 && bytes < 1048576) {

        sizeInBytes =  bytes / 1024.0;

        sizeUnit = @"Kb";

    }

    else if (bytes > 1048575 && bytes < 1073741824) {

        sizeInBytes = bytes / 1048576.0;

        sizeUnit = @"Mb";

    }

    else if (bytes > 1073741823) {

        sizeInBytes = bytes / 1073741824.0;

        sizeUnit = @"Gb";

    }

    NSString *humanReadableString = [NSString stringWithFormat:@"%.1f %@", sizeInBytes, sizeUnit];

    humanReadableString = [humanReadableString stringByReplacingOccurrencesOfString:@".0" withString:@""];

    return humanReadableString;

}

- (void)createContainerWithName:(NSString *)containerName {

    [self hideToolbarInfoMessage];

    [self showToolbarActivityMessage:@"Creating container..."];

    Container *container = [[Container alloc] init];

    container.name = containerName;

    [[self.account.manager createContainer:container]

     success:^(OpenStackRequest *request) {

         [self hideToolbarActivityMessage];

         if (!account.sharingAccount)

             [self showToolbarInfoMessage:accountUsageInfo];

         [self.tableView reloadData];

     }

     failure:^(OpenStackRequest *request) {

         [self hideToolbarActivityMessage];

         if (!account.sharingAccount)

             [self showToolbarInfoMessage:accountUsageInfo];

         [self alert:@"There was a problem creating your container." request:request];

     }];

    [container release];

}

#pragma mark -

#pragma mark Memory management

- (void)dealloc {

    [accountUsageInfo release];

    [tableView release];

    [account release];

    [containerDetailViewController release];

    [super dealloc];

}

@end