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//
// ChatViewController.m
// NearMe
//
// Created by TW on 9/29/12.
// Copyright 2012 __MyCompanyName__. All rights reserved.
//
#import "ChatViewController.h"
@implementation ChatViewController
@synthesize chatTableView = _chatTableView;
@synthesize dataSource = _dataSource;
-(id)init
{
self = [super init];
if(self){
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillHide:)
name:UIKeyboardWillHideNotification
object:nil];
}
return self;
}
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
self.view = [[[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]] autorelease];
self.view.backgroundColor = [UIColor colorWithRed:219.0f/255.0f green:226.0f/255.0f blue:237.0f/255.0f alpha:1];
chatTableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];
dataSource = [[ChatMessagesDataSource alloc] init];
[dataSource startMyWebSocket];
[chatTableView setDataSource:dataSource];
[self.view addSubview:chatTableView];
containerView = [[UIView alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 40, 320, 40)];
textView = [[HPGrowingTextView alloc] initWithFrame:CGRectMake(6, 3, 240, 40)];
textView.contentInset = UIEdgeInsetsMake(0, 5, 0, 5);
textView.minNumberOfLines = 1;
textView.maxNumberOfLines = 6;
textView.returnKeyType = UIReturnKeyGo; //just as an example
textView.font = [UIFont systemFontOfSize:15.0f];
textView.delegate = self;
textView.internalTextView.scrollIndicatorInsets = UIEdgeInsetsMake(5, 0, 5, 0);
textView.backgroundColor = [UIColor whiteColor];
// textView.text = @"test\n\ntest";
// textView.animateHeightChange = NO; //turns off animation
[self.view addSubview:containerView];
UIImage *rawEntryBackground = [UIImage imageNamed:@"MessageEntryInputField.png"];
UIImage *entryBackground = [rawEntryBackground stretchableImageWithLeftCapWidth:13 topCapHeight:22];
UIImageView *entryImageView = [[[UIImageView alloc] initWithImage:entryBackground] autorelease];
entryImageView.frame = CGRectMake(5, 0, 248, 40);
entryImageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
UIImage *rawBackground = [UIImage imageNamed:@"MessageEntryBackground.png"];
UIImage *background = [rawBackground stretchableImageWithLeftCapWidth:13 topCapHeight:22];
UIImageView *imageView = [[[UIImageView alloc] initWithImage:background] autorelease];
imageView.frame = CGRectMake(0, 0, containerView.frame.size.width, containerView.frame.size.height);
imageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
textView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
// view hierachy
[containerView addSubview:imageView];
[containerView addSubview:textView];
[containerView addSubview:entryImageView];
UIImage *sendBtnBackground = [[UIImage imageNamed:@"MessageEntrySendButton.png"] stretchableImageWithLeftCapWidth:13 topCapHeight:0];
UIImage *selectedSendBtnBackground = [[UIImage imageNamed:@"MessageEntrySendButton.png"] stretchableImageWithLeftCapWidth:13 topCapHeight:0];
UIButton *doneBtn = [UIButton buttonWithType:UIButtonTypeCustom];
doneBtn.frame = CGRectMake(containerView.frame.size.width - 69, 8, 63, 27);
doneBtn.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin;
[doneBtn setTitle:@"Post" forState:UIControlStateNormal];
[doneBtn setTitleShadowColor:[UIColor colorWithWhite:0 alpha:0.4] forState:UIControlStateNormal];
doneBtn.titleLabel.shadowOffset = CGSizeMake (0.0, -1.0);
doneBtn.titleLabel.font = [UIFont boldSystemFontOfSize:18.0f];
[doneBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[doneBtn addTarget:self action:@selector(resignTextView) forControlEvents:UIControlEventTouchUpInside];
[doneBtn setBackgroundImage:sendBtnBackground forState:UIControlStateNormal];
[doneBtn setBackgroundImage:selectedSendBtnBackground forState:UIControlStateSelected];
[containerView addSubview:doneBtn];
containerView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
}
-(void)resignTextView
{
[dataSource sendMessage:textView.text];
textView.text = @"";
[chatTableView reloadData];
[textView resignFirstResponder];
}
//Code from Brett Schumann
-(void) keyboardWillShow:(NSNotification *)note{
// get keyboard size and loctaion
CGRect keyboardBounds;
[[note.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey] getValue: &keyboardBounds];
NSNumber *duration = [note.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
NSNumber *curve = [note.userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey];
// Need to translate the bounds to account for rotation.
keyboardBounds = [self.view convertRect:keyboardBounds toView:nil];
// get a rect for the textView frame
CGRect containerFrame = containerView.frame;
containerFrame.origin.y = self.view.bounds.size.height - (keyboardBounds.size.height + containerFrame.size.height);
// animations settings
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:[duration doubleValue]];
[UIView setAnimationCurve:[curve intValue]];
// set views with new info
containerView.frame = containerFrame;
// commit animations
[UIView commitAnimations];
}
-(void) keyboardWillHide:(NSNotification *)note{
NSNumber *duration = [note.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
NSNumber *curve = [note.userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey];
// get a rect for the textView frame
CGRect containerFrame = containerView.frame;
containerFrame.origin.y = self.view.bounds.size.height - containerFrame.size.height;
// animations settings
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:[duration doubleValue]];
[UIView setAnimationCurve:[curve intValue]];
// set views with new info
containerView.frame = containerFrame;
// commit animations
[UIView commitAnimations];
}
- (void)growingTextView:(HPGrowingTextView *)growingTextView willChangeHeight:(float)height
{
float diff = (growingTextView.frame.size.height - height);
CGRect r = containerView.frame;
r.size.height -= diff;
r.origin.y += diff;
containerView.frame = r;
}
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
return YES;
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[chatTableView release];
[textView release];
[containerView release];
[super dealloc];
}
# pragma mark UITableViewDelegate methods
@end
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