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PBWebController.m
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PBWebController.m
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//
// PBWebController.m
// GitX
//
// Created by Pieter de Bie on 08-10-08.
// Copyright 2008 __MyCompanyName__. All rights reserved.
//
#import "PBWebController.h"
#import "PBGitRepository.h"
#import "PBGitXProtocol.h"
#include <SystemConfiguration/SCNetworkReachability.h>
@implementation PBWebController
@synthesize startFile, repository;
- (void) awakeFromNib
{
NSString *path = [NSString stringWithFormat:@"html/views/%@", startFile];
NSString* file = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html" inDirectory:path];
NSURLRequest * request = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:file]];
callbacks = [NSMapTable mapTableWithKeyOptions:(NSPointerFunctionsObjectPointerPersonality|NSPointerFunctionsStrongMemory) valueOptions:(NSPointerFunctionsObjectPointerPersonality|NSPointerFunctionsStrongMemory)];
finishedLoading = NO;
[view setUIDelegate:self];
[view setFrameLoadDelegate:self];
[view setResourceLoadDelegate:self];
[[view mainFrame] loadRequest:request];
}
- (WebScriptObject *) script
{
return [view windowScriptObject];
}
- (void) closeView
{
if (view)
[view close];
}
# pragma mark Delegate methods
- (void) webView:(id) v didFinishLoadForFrame:(id) frame
{
id script = [view windowScriptObject];
[script setValue: self forKey:@"Controller"];
finishedLoading = YES;
if ([self respondsToSelector:@selector(didLoad)])
[self performSelector:@selector(didLoad)];
}
- (void)webView:(WebView *)webView addMessageToConsole:(NSDictionary *)dictionary
{
NSLog(@"Error from webkit: %@", dictionary);
}
- (NSURLRequest *)webView:(WebView *)sender
resource:(id)identifier
willSendRequest:(NSURLRequest *)request
redirectResponse:(NSURLResponse *)redirectResponse
fromDataSource:(WebDataSource *)dataSource
{
if (!self.repository)
return request;
// TODO: Change this to canInitWithRequest
if ([[[request URL] scheme] isEqualToString:@"GitX"]) {
NSMutableURLRequest *newRequest = [request mutableCopy];
[newRequest setRepository:self.repository];
return newRequest;
}
return request;
}
+ (BOOL)isSelectorExcludedFromWebScript:(SEL)aSelector
{
return NO;
}
+ (BOOL)isKeyExcludedFromWebScript:(const char *)name {
return NO;
}
#pragma mark Functions to be used from JavaScript
- (void) log: (NSString*) logMessage
{
NSLog(@"%@", logMessage);
}
- (BOOL) isReachable:(NSString *)hostname
{
SCNetworkConnectionFlags flags;
if (!SCNetworkCheckReachabilityByName([hostname cStringUsingEncoding:NSASCIIStringEncoding], &flags))
return FALSE;
// If a connection is required, then it's not reachable
if (flags & (kSCNetworkFlagsConnectionRequired | kSCNetworkFlagsConnectionAutomatic | kSCNetworkFlagsInterventionRequired))
return FALSE;
return flags > 0;
}
#pragma mark Using async function from JS
- (void) runCommand:(WebScriptObject *)arguments inRepository:(PBGitRepository *)repo callBack:(WebScriptObject *)callBack
{
// The JS bridge does not handle JS Arrays, even though the docs say it does. So, we convert it ourselves.
int length = [[arguments valueForKey:@"length"] intValue];
NSMutableArray *realArguments = [NSMutableArray arrayWithCapacity:length];
int i = 0;
for (i = 0; i < length; i++)
[realArguments addObject:[arguments webScriptValueAtIndex:i]];
NSFileHandle *handle = [repo handleInWorkDirForArguments:realArguments];
[callbacks setObject:callBack forKey:handle];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(JSRunCommandDone:) name:NSFileHandleReadToEndOfFileCompletionNotification object:handle];
[handle readToEndOfFileInBackgroundAndNotify];
}
- (void) callSelector:(NSString *)selectorString onObject:(id)object callBack:(WebScriptObject *)callBack
{
NSArray *arguments = [NSArray arrayWithObjects:selectorString, object, nil];
NSThread *thread = [[NSThread alloc] initWithTarget:self selector:@selector(runInThread:) object:arguments];
[callbacks setObject:callBack forKey:thread];
[thread start];
}
- (void) runInThread:(NSArray *)arguments
{
SEL selector = NSSelectorFromString([arguments objectAtIndex:0]);
id object = [arguments objectAtIndex:1];
id ret = [object performSelector:selector];
NSArray *returnArray = [NSArray arrayWithObjects:[NSThread currentThread], ret, nil];
[self performSelectorOnMainThread:@selector(threadFinished:) withObject:returnArray waitUntilDone:NO];
}
- (void) returnCallBackForObject:(id)object withData:(id)data
{
WebScriptObject *a = [callbacks objectForKey: object];
if (!a) {
NSLog(@"Could not find a callback for object: %@", object);
return;
}
[callbacks removeObjectForKey:object];
[a callWebScriptMethod:@"call" withArguments:[NSArray arrayWithObjects:@"", data, nil]];
}
- (void) threadFinished:(NSArray *)arguments
{
[self returnCallBackForObject:[arguments objectAtIndex:0] withData:[arguments objectAtIndex:1]];
}
- (void) JSRunCommandDone:(NSNotification *)notification
{
NSString *data = [[NSString alloc] initWithData:[[notification userInfo] valueForKey:NSFileHandleNotificationDataItem] encoding:NSUTF8StringEncoding];
[self returnCallBackForObject:[notification object] withData:data];
}
@end