linphone-ios/Classes/ChatRoomViewController.m

/* ChatRoomViewController.m
 *
 * Copyright (C) 2012  Belledonne Comunications, Grenoble, France
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#import "ChatRoomViewController.h"
#import "PhoneMainView.h"
#import "DTActionSheet.h"
#import "UILinphone.h"
#import "DTAlertView.h"
#import "Utils/FileTransferDelegate.h"
#import <NinePatch.h>
#import <MobileCoreServices/UTCoreTypes.h>
#import "Utils.h"
#import "UIChatRoomCell.h"

@implementation ChatRoomViewController

@synthesize tableController;
@synthesize sendButton;
@synthesize messageField;
@synthesize editButton;
@synthesize addressLabel;
@synthesize composeLabel;
@synthesize composeIndicatorView;
@synthesize avatarImage;
@synthesize headerView;
@synthesize chatView;
@synthesize messageView;
@synthesize messageBackgroundImage;
@synthesize transferBackgroundImage;
@synthesize listTapGestureRecognizer;
@synthesize listSwipeGestureRecognizer;
@synthesize pictureButton;

#pragma mark - Lifecycle Functions

- (id)init {
	self = [super initWithNibName:@"ChatRoomViewController" bundle:[NSBundle mainBundle]];
	if (self != nil) {
		self->scrollOnGrowingEnabled = TRUE;
		self->chatRoom = NULL;
		self->listTapGestureRecognizer =
			[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onListTap:)];
		self.listSwipeGestureRecognizer =
			[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(onListSwipe:)];
		self->imageQualities = [[OrderedDictionary alloc]
			initWithObjectsAndKeys:[NSNumber numberWithFloat:0.9], NSLocalizedString(@"Maximum", nil),
								   [NSNumber numberWithFloat:0.5], NSLocalizedString(@"Average", nil),
								   [NSNumber numberWithFloat:0.0], NSLocalizedString(@"Minimum", nil), nil];
		self->composingVisible = TRUE;
	}
	return self;
}

- (void)dealloc {
	[[NSNotificationCenter defaultCenter] removeObserver:self];
}

#pragma mark - UICompositeViewDelegate Functions

static UICompositeViewDescription *compositeDescription = nil;

+ (UICompositeViewDescription *)compositeViewDescription {
	if (compositeDescription == nil) {
		compositeDescription = [[UICompositeViewDescription alloc] init:@"ChatRoom"
																content:@"ChatRoomViewController"
															   stateBar:nil
														stateBarEnabled:false
																 tabBar:/*@"UIMainBar"*/ nil
														  tabBarEnabled:false /*to keep room for chat*/
															 fullscreen:false
														  landscapeMode:true
														   portraitMode:true];
	}
	return compositeDescription;
}

#pragma mark - ViewController Functions

- (void)viewDidLoad {
	[super viewDidLoad];
	[tableController setChatRoomDelegate:self];

	// Set selected+over background: IB lack !
	[editButton setBackgroundImage:[UIImage imageNamed:@"chat_ok_over.png"]
						  forState:(UIControlStateHighlighted | UIControlStateSelected)];

	[LinphoneUtils buttonFixStates:editButton];

	messageField.minNumberOfLines = 1;
	messageField.maxNumberOfLines = ([LinphoneManager runningOnIpad]) ? 10 : 3;
	messageField.delegate = self;
	messageField.font = [UIFont systemFontOfSize:18.0f];
	messageField.contentInset = UIEdgeInsetsMake(0, -5, -2, -5);
	messageField.internalTextView.scrollIndicatorInsets = UIEdgeInsetsMake(0, 0, 0, 10);
	messageField.backgroundColor = [UIColor clearColor];
	[sendButton setEnabled:FALSE];

	[tableController.tableView addGestureRecognizer:listTapGestureRecognizer];
	[listTapGestureRecognizer setEnabled:FALSE];

	listSwipeGestureRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
	[tableController.tableView addGestureRecognizer:listSwipeGestureRecognizer];
	listSwipeGestureRecognizer.enabled = TRUE;

	[tableController.tableView setBackgroundColor:[UIColor clearColor]]; // Can't do it in Xib: issue with ios4
	[tableController.tableView setBackgroundView:nil];
}

- (void)viewWillAppear:(BOOL)animated {
	[super viewWillAppear:animated];
	[[NSNotificationCenter defaultCenter] addObserver:self
											 selector:@selector(applicationWillEnterForeground:)
												 name:UIApplicationDidBecomeActiveNotification
											   object:nil];
	[[NSNotificationCenter defaultCenter] addObserver:self
											 selector:@selector(keyboardWillShow:)
												 name:UIKeyboardWillShowNotification
											   object:nil];
	[[NSNotificationCenter defaultCenter] addObserver:self
											 selector:@selector(keyboardWillHide:)
												 name:UIKeyboardWillHideNotification
											   object:nil];
	[[NSNotificationCenter defaultCenter] addObserver:self
											 selector:@selector(textReceivedEvent:)
												 name:kLinphoneMessageReceived
											   object:nil];
	[[NSNotificationCenter defaultCenter] addObserver:self
											 selector:@selector(onMessageChange:)
												 name:UITextViewTextDidChangeNotification
											   object:nil];
	[[NSNotificationCenter defaultCenter] addObserver:self
											 selector:@selector(textComposeEvent:)
												 name:kLinphoneTextComposeEvent
											   object:nil];

	if ([tableController isEditing])
		[tableController setEditing:FALSE animated:FALSE];
	[editButton setOff];
	[[tableController tableView] reloadData];

	[messageBackgroundImage setImage:[TUNinePatchCache imageOfSize:[messageBackgroundImage bounds].size
												 forNinePatchNamed:@"chat_message_background"]];

	BOOL fileSharingEnabled =
		[[LinphoneManager instance] lpConfigStringForKey:@"sharing_server_preference"] != NULL &&
		[[[LinphoneManager instance] lpConfigStringForKey:@"sharing_server_preference"] length] > 0;
	[pictureButton setEnabled:fileSharingEnabled];
}

- (void)viewWillDisappear:(BOOL)animated {
	[super viewWillDisappear:animated];

	[messageField resignFirstResponder];

	[self setComposingVisible:FALSE withDelay:0]; // will hide the "user is composing.." message

	[[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {
	[super didRotateFromInterfaceOrientation:fromInterfaceOrientation];
	[messageBackgroundImage setImage:[TUNinePatchCache imageOfSize:[messageBackgroundImage bounds].size
												 forNinePatchNamed:@"chat_message_background"]];
	[tableController scrollToBottom:true];
}

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
										 duration:(NSTimeInterval)duration {
	[super willAnimateRotationToInterfaceOrientation:toInterfaceOrientation duration:duration];
}

- (void)didReceiveMemoryWarning {
	[super didReceiveMemoryWarning];
	[TUNinePatchCache flushCache]; // will remove any images cache (freeing any cached but unused images)
}

#pragma mark -

- (void)setChatRoom:(LinphoneChatRoom *)room {
	self->chatRoom = room;
	[messageField setText:@""];
	[tableController setChatRoom:room];
	[self update];
	linphone_chat_room_mark_as_read(chatRoom);
	[self setComposingVisible:linphone_chat_room_is_remote_composing(chatRoom) withDelay:0];
	[[NSNotificationCenter defaultCenter] postNotificationName:kLinphoneMessageReceived object:self];
}

- (void)applicationWillEnterForeground:(NSNotification *)notif {
	if (chatRoom != nil) {
		linphone_chat_room_mark_as_read(chatRoom);
		[[NSNotificationCenter defaultCenter] postNotificationName:kLinphoneMessageReceived object:self];
	}
}

- (void)update {
	if (chatRoom == NULL) {
		LOGW(@"Cannot update chat room header: null contact");
		return;
	}

	NSString *displayName = nil;
	UIImage *image = nil;
	const LinphoneAddress *linphoneAddress = linphone_chat_room_get_peer_address(chatRoom);
	if (linphoneAddress == NULL) {
		[[PhoneMainView instance] popCurrentView];
		UIAlertView *error = [[UIAlertView alloc]
				initWithTitle:NSLocalizedString(@"Invalid SIP address", nil)
					  message:NSLocalizedString(@"Either configure a SIP proxy server from settings prior to send a "
												@"message or use a valid SIP address (I.E sip:john@example.net)",
												nil)
					 delegate:nil
			cancelButtonTitle:NSLocalizedString(@"Continue", nil)
			otherButtonTitles:nil];
		[error show];
		return;
	}
	char *tmp = linphone_address_as_string_uri_only(linphoneAddress);
	NSString *normalizedSipAddress = [NSString stringWithUTF8String:tmp];
	ms_free(tmp);

	ABRecordRef acontact = [[[LinphoneManager instance] fastAddressBook] getContact:normalizedSipAddress];
	if (acontact != nil) {
		displayName = [FastAddressBook getContactDisplayName:acontact];
		image = [FastAddressBook getContactImage:acontact thumbnail:true];
	}

	// Display name
	if (displayName == nil) {
		const char *username = linphone_address_get_username(linphoneAddress);
		char *address = linphone_address_as_string(linphoneAddress);
		displayName = [NSString stringWithUTF8String:username ?: address];
		ms_free(address);
	}
	if (displayName == nil)
		LOGF(@"No display name");
	addressLabel.text = displayName;
	addressLabel.accessibilityValue = displayName;

	// Avatar
	if (image == nil) {
		image = [UIImage imageNamed:@"avatar_unknown_small.png"];
	}
	[avatarImage setImage:image];
}

static void message_status(LinphoneChatMessage *msg, LinphoneChatMessageState state, void *ud) {
	const char *text = (linphone_chat_message_get_file_transfer_information(msg) != NULL)
						   ? "photo transfer"
						   : linphone_chat_message_get_text(msg);
	LOGI(@"Delivery status for [%s] is [%s]", text, linphone_chat_message_state_to_string(state));
	ChatRoomViewController *thiz = (__bridge ChatRoomViewController *)ud;
	[thiz.tableController updateChatEntry:msg];
}

- (BOOL)sendMessage:(NSString *)message withExterlBodyUrl:(NSURL *)externalUrl withInternalURL:(NSURL *)internalUrl {
	if (chatRoom == NULL) {
		LOGW(@"Cannot send message: No chatroom");
		return FALSE;
	}

	LinphoneChatMessage *msg = linphone_chat_room_create_message(chatRoom, [message UTF8String]);
	if (externalUrl) {
		linphone_chat_message_set_external_body_url(msg, [[externalUrl absoluteString] UTF8String]);
	}

	linphone_chat_room_send_message2(chatRoom, msg, message_status, (__bridge void *)(self));

	if (internalUrl) {
		// internal url is saved in the appdata for display and later save
		[LinphoneManager setValueInMessageAppData:[internalUrl absoluteString] forKey:@"localimage" inMessage:msg];
	}

	[tableController addChatEntry:msg];
	[tableController scrollToBottom:true];
	return TRUE;
}

- (void)saveAndSend:(UIImage *)image url:(NSURL *)url {
	// photo from Camera, must be saved first
	if (url == nil) {
		[[LinphoneManager instance]
				.photoLibrary
			writeImageToSavedPhotosAlbum:image.CGImage
							 orientation:(ALAssetOrientation)[image imageOrientation]
						 completionBlock:^(NSURL *assetURL, NSError *error) {
						   if (error) {
							   LOGE(@"Cannot save image data downloaded [%@]", [error localizedDescription]);

							   UIAlertView *errorAlert = [[UIAlertView alloc]
									   initWithTitle:NSLocalizedString(@"Transfer error", nil)
											 message:NSLocalizedString(@"Cannot write image to photo library", nil)
											delegate:nil
								   cancelButtonTitle:NSLocalizedString(@"Ok", nil)
								   otherButtonTitles:nil, nil];
							   [errorAlert show];
						   } else {
							   LOGI(@"Image saved to [%@]", [assetURL absoluteString]);
							   [self chatRoomStartImageUpload:image url:assetURL];
						   }
						 }];
	} else {
		[self chatRoomStartImageUpload:image url:url];
	}
}

- (void)chooseImageQuality:(UIImage *)image url:(NSURL *)url {
	DTActionSheet *sheet = [[DTActionSheet alloc] initWithTitle:NSLocalizedString(@"Choose the image size", nil)];
	dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
	  // UIImage *image = [original_image normalizedImage];
	  for (NSString *key in [imageQualities allKeys]) {
		  NSNumber *number = [imageQualities objectForKey:key];
		  NSData *data = UIImageJPEGRepresentation(image, [number floatValue]);
		  NSNumber *size = [NSNumber numberWithInteger:[data length]];

		  NSString *text = [NSString stringWithFormat:@"%@ (%@)", key, [size toHumanReadableSize]];
		  [sheet addButtonWithTitle:text
							  block:^() {
								[self saveAndSend:[UIImage imageWithData:data] url:url];
							  }];
	  }
	  [sheet addCancelButtonWithTitle:NSLocalizedString(@"Cancel", nil) block:nil];
	  dispatch_async(dispatch_get_main_queue(), ^{
		[sheet showInView:[PhoneMainView instance].view];
	  });
	});
}

- (void)setComposingVisible:(BOOL)visible withDelay:(CGFloat)delay {

	if (composingVisible == visible)
		return;

	CGRect keyboardFrame = [self.messageView frame];
	CGRect newComposingFrame = [self.composeIndicatorView frame];
	CGRect newTableFrame = [self.tableController.tableView frame];

	if (visible) {
		composeLabel.text =
			[NSString stringWithFormat:NSLocalizedString(@"%@ is composing...", nil), addressLabel.text];
		// pull up the composing frame and shrink the table view

		newTableFrame.size.height -= newComposingFrame.size.height;
		newComposingFrame.origin.y = keyboardFrame.origin.y - newComposingFrame.size.height;
	} else {
		// pull down the composing frame and widen the tableview
		newTableFrame.size.height += newComposingFrame.size.height;
		newComposingFrame.origin.y = keyboardFrame.origin.y;
	}
	composingVisible = visible;
	[UIView animateWithDuration:delay
		animations:^{
		  self.tableController.tableView.frame = newTableFrame;
		  self.composeIndicatorView.frame = newComposingFrame;
		}
		completion:^(BOOL finished) {
		  [self.tableController scrollToBottom:TRUE];
		}];
}

#pragma mark - Event Functions

- (void)textReceivedEvent:(NSNotification *)notif {
	LinphoneAddress *from = [[[notif userInfo] objectForKey:@"from_address"] pointerValue];
	LinphoneChatRoom *room = [[notif.userInfo objectForKey:@"room"] pointerValue];
	LinphoneChatMessage *chat = [[notif.userInfo objectForKey:@"message"] pointerValue];

	if (from == NULL || chat == NULL) {
		return;
	}
	char *fromStr = linphone_address_as_string_uri_only(from);
	const LinphoneAddress *cr_from = linphone_chat_room_get_peer_address(chatRoom);
	char *cr_from_string = linphone_address_as_string_uri_only(cr_from);

	if (fromStr && cr_from_string) {

		if (strcasecmp(cr_from_string, fromStr) == 0) {
			if ([UIApplication sharedApplication].applicationState != UIApplicationStateBackground) {
				linphone_chat_room_mark_as_read(room);
				[[NSNotificationCenter defaultCenter] postNotificationName:kLinphoneMessageReceived object:self];
			}
			[tableController addChatEntry:chat];
			[tableController scrollToLastUnread:TRUE];
		}
	}
	ms_free(fromStr);
	ms_free(cr_from_string);
}

- (void)textComposeEvent:(NSNotification *)notif {
	LinphoneChatRoom *room = [[[notif userInfo] objectForKey:@"room"] pointerValue];
	if (room && room == chatRoom) {
		BOOL composing = linphone_chat_room_is_remote_composing(room);
		[self setComposingVisible:composing withDelay:0.3];
	}
}

#pragma mark - UITextFieldDelegate Functions

- (BOOL)growingTextViewShouldBeginEditing:(HPGrowingTextView *)growingTextView {
	if (editButton.selected) {
		[tableController setEditing:FALSE animated:TRUE];
		[editButton setOff];
	}
	[listTapGestureRecognizer setEnabled:TRUE];
	return TRUE;
}

- (BOOL)growingTextViewShouldEndEditing:(HPGrowingTextView *)growingTextView {
	[listTapGestureRecognizer setEnabled:FALSE];
	return TRUE;
}

- (void)growingTextChanged:(HPGrowingTextView *)growingTextView text:(NSString *)text {
	if ([text length] > 0 && chatRoom)
		linphone_chat_room_compose(chatRoom);
}

- (void)growingTextView:(HPGrowingTextView *)growingTextView willChangeHeight:(float)height {
	int diff = height - growingTextView.bounds.size.height;

	if (diff != 0) {
		CGRect messageRect = [messageView frame];
		messageRect.origin.y -= diff;
		messageRect.size.height += diff;
		[messageView setFrame:messageRect];

		// Always stay at bottom
		if (scrollOnGrowingEnabled) {
			CGRect tableFrame = [tableController.view frame];
			CGPoint contentPt = [tableController.tableView contentOffset];
			contentPt.y += diff;
			if (contentPt.y + tableFrame.size.height > tableController.tableView.contentSize.height)
				contentPt.y += diff;
			[tableController.tableView setContentOffset:contentPt animated:FALSE];
		}

		CGRect tableRect = [tableController.view frame];
		tableRect.size.height -= diff;
		[tableController.view setFrame:tableRect];

		[messageBackgroundImage setImage:[TUNinePatchCache imageOfSize:[messageBackgroundImage bounds].size
													 forNinePatchNamed:@"chat_message_background"]];
		// if we're showing the compose message, update it position
		if (![composeLabel isHidden]) {
			CGRect frame = [composeLabel frame];
			frame.origin.y -= diff;
			[composeLabel setFrame:frame];
		}
	}
}

#pragma mark - Action Functions

- (IBAction)onBackClick:(id)event {
	[self.tableController setChatRoom:NULL];
	[[PhoneMainView instance] popCurrentView];
}

- (IBAction)onEditClick:(id)event {
	[tableController setEditing:![tableController isEditing] animated:TRUE];
	[messageField resignFirstResponder];
}

- (IBAction)onSendClick:(id)event {
	if ([self sendMessage:[messageField text] withExterlBodyUrl:nil withInternalURL:nil]) {
		scrollOnGrowingEnabled = FALSE;
		[messageField setText:@""];
		scrollOnGrowingEnabled = TRUE;
		[self onMessageChange:nil];
	}
}

- (IBAction)onListTap:(id)sender {
	[messageField resignFirstResponder];
}
- (IBAction)onListSwipe:(id)sender {
	[self onBackClick:sender];
}

- (IBAction)onMessageChange:(id)sender {
	if ([[messageField text] length] > 0) {
		[sendButton setEnabled:TRUE];
	} else {
		[sendButton setEnabled:FALSE];
	}
}

- (IBAction)onPictureClick:(id)event {
	[messageField resignFirstResponder];

	void (^block)(UIImagePickerControllerSourceType) = ^(UIImagePickerControllerSourceType type) {
	  UICompositeViewDescription *description = [ImagePickerViewController compositeViewDescription];
	  ImagePickerViewController *controller;
	  if ([LinphoneManager runningOnIpad]) {
		  controller =
			  DYNAMIC_CAST([[PhoneMainView instance].mainViewController getCachedController:description.content],
						   ImagePickerViewController);
	  } else {
		  controller = DYNAMIC_CAST([[PhoneMainView instance] changeCurrentView:description push:TRUE],
									ImagePickerViewController);
	  }
	  if (controller != nil) {
		  controller.sourceType = type;

		  // Displays a control that allows the user to choose picture or
		  // movie capture, if both are available:
		  controller.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];

		  // Hides the controls for moving & scaling pictures, or for
		  // trimming movies. To instead show the controls, use YES.
		  controller.allowsEditing = NO;
		  controller.imagePickerDelegate = self;

		  if ([LinphoneManager runningOnIpad]) {
			  CGRect rect = [self.messageView convertRect:[pictureButton frame] toView:self.view];
			  [controller.popoverController presentPopoverFromRect:rect
															inView:self.view
										  permittedArrowDirections:UIPopoverArrowDirectionAny
														  animated:FALSE];
		  }
	  }
	};

	DTActionSheet *sheet = [[DTActionSheet alloc] initWithTitle:NSLocalizedString(@"Select picture source", nil)];
	if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
		[sheet addButtonWithTitle:NSLocalizedString(@"Camera", nil)
							block:^() {
							  block(UIImagePickerControllerSourceTypeCamera);
							}];
	}
	if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
		[sheet addButtonWithTitle:NSLocalizedString(@"Photo library", nil)
							block:^() {
							  block(UIImagePickerControllerSourceTypePhotoLibrary);
							}];
	}
	[sheet addCancelButtonWithTitle:NSLocalizedString(@"Cancel", nil) block:nil];

	[sheet showInView:[PhoneMainView instance].view];
}

#pragma mark ChatRoomDelegate

- (BOOL)chatRoomStartImageUpload:(UIImage *)image url:(NSURL *)url {
	FileTransferDelegate *fileTransfer = [[FileTransferDelegate alloc] init];
	[fileTransfer upload:image withURL:url forChatRoom:chatRoom];
	[tableController addChatEntry:linphone_chat_message_ref(fileTransfer.message)];
	[tableController scrollToBottom:true];
	return TRUE;
}

- (void)resendChat:(NSString *)message withExternalUrl:(NSString *)url {
	[self sendMessage:message withExterlBodyUrl:[NSURL URLWithString:url] withInternalURL:nil];
}

#pragma mark ImagePickerDelegate

- (void)imagePickerDelegateImage:(UIImage *)image info:(NSDictionary *)info {
	// Dismiss popover on iPad
	if ([LinphoneManager runningOnIpad]) {
		UICompositeViewDescription *description = [ImagePickerViewController compositeViewDescription];
		ImagePickerViewController *controller =
			DYNAMIC_CAST([[PhoneMainView instance].mainViewController getCachedController:description.content],
						 ImagePickerViewController);
		if (controller != nil) {
			[controller.popoverController dismissPopoverAnimated:TRUE];
		}
	}

	NSURL *url = [info valueForKey:UIImagePickerControllerReferenceURL];
	[self chooseImageQuality:image url:url];
}

#pragma mark - Keyboard Event Functions

- (void)keyboardWillHide:(NSNotification *)notif {
	NSTimeInterval duration = [[[notif userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
	[UIView animateWithDuration:duration
		delay:0
		options:UIViewAnimationOptionBeginFromCurrentState
		animations:^{
		  CGFloat composeIndicatorCompensation = composingVisible ? composeIndicatorView.frame.size.height : 0.0f;

		  // Resize chat view
		  {
			  CGRect chatFrame = [[self chatView] frame];
			  chatFrame.size.height = [[self view] frame].size.height - chatFrame.origin.y;
			  [[self chatView] setFrame:chatFrame];
		  }

		  // Move header view back into place (was hidden before)
		  {
			  CGRect headerFrame = [headerView frame];
			  headerFrame.origin.y = 0;
			  [headerView setFrame:headerFrame];
			  [headerView setAlpha:1.0];
		  }

		  // Resize & Move table view
		  {
			  CGRect tableFrame = [tableController.view frame];
			  tableFrame.origin.y = [headerView frame].origin.y + [headerView frame].size.height;
			  tableFrame.size.height =
				  [messageView frame].origin.y - tableFrame.origin.y - composeIndicatorCompensation;
			  [tableController.view setFrame:tableFrame];

			  // Scroll to bottom
			  NSInteger lastSection = [tableController.tableView numberOfSections] - 1;
			  if (lastSection >= 0) {
				  NSInteger lastRow = [tableController.tableView numberOfRowsInSection:lastSection] - 1;
				  if (lastRow >= 0) {
					  [tableController.tableView
						  scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:lastRow inSection:lastSection]
								atScrollPosition:UITableViewScrollPositionBottom
										animated:FALSE];
				  }
			  }
		  }

		}
		completion:^(BOOL finished){
		}];
}

- (void)keyboardWillShow:(NSNotification *)notif {
	NSTimeInterval duration = [[[notif userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
	CGFloat composeIndicatorCompensation = composingVisible ? composeIndicatorView.frame.size.height : 0.0f;

	[UIView animateWithDuration:duration
		delay:0
		options:UIViewAnimationOptionBeginFromCurrentState
		animations:^{

		  CGRect endFrame = [[[notif userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];

		  if (([[UIDevice currentDevice].systemVersion floatValue] < 8) &&
			  UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
			  int width = endFrame.size.height;
			  endFrame.size.height = endFrame.size.width;
			  endFrame.size.width = width;
		  }

		  // Resize chat view
		  {
			  CGRect viewFrame = [[self view] frame];
			  CGRect rect = [PhoneMainView instance].view.bounds;
			  CGPoint pos = {viewFrame.size.width, viewFrame.size.height};
			  CGPoint gPos =
				  [self.view convertPoint:pos
								   toView:[UIApplication sharedApplication]
											  .keyWindow.rootViewController.view]; // Bypass IOS bug on landscape mode
			  float diff = (rect.size.height - gPos.y - endFrame.size.height);
			  if (diff > 0)
				  diff = 0;
			  CGRect chatFrame = [[self chatView] frame];
			  chatFrame.size.height = viewFrame.size.height - chatFrame.origin.y + diff;
			  [[self chatView] setFrame:chatFrame];
		  }

		  // Move header view
		  {
			  CGRect headerFrame = [headerView frame];
			  headerFrame.origin.y = -headerFrame.size.height;
			  [headerView setFrame:headerFrame];
			  [headerView setAlpha:0.0];
		  }

		  // Resize & Move table view
		  {
			  CGRect tableFrame = [tableController.view frame];
			  tableFrame.origin.y = [headerView frame].origin.y + [headerView frame].size.height;
			  tableFrame.size.height =
				  [messageView frame].origin.y - tableFrame.origin.y - composeIndicatorCompensation;
			  [tableController.view setFrame:tableFrame];
		  }

		  // Scroll
		  NSInteger lastSection = [tableController.tableView numberOfSections] - 1;
		  if (lastSection >= 0) {
			  NSInteger lastRow = [tableController.tableView numberOfRowsInSection:lastSection] - 1;
			  if (lastRow >= 0) {
				  [tableController.tableView
					  scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:lastRow inSection:lastSection]
							atScrollPosition:UITableViewScrollPositionBottom
									animated:FALSE];
			  }
		  }

		}
		completion:^(BOOL finished){
		}];
}

@end