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/*
Copyright (C) 2000-2005 SKYRIX Software AG
This file is part of SOPE.
SOPE is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
SOPE 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with SOPE; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
#include "WOComponentReference.h"
#include "WOElement+private.h"
#include "WOContext+private.h"
#include "WOComponent+private.h"
#include "decommon.h"
@interface WOContext(ComponentStackCount)
- (unsigned)componentStackCount;
@end
@implementation WOComponentReference
static int profileComponents = -1;
static BOOL coreOnRecursion = NO;
static BOOL debugOn = NO;
static Class NSDateClass = Nil;
+ (void)initialize {
NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
profileComponents = [[ud objectForKey:@"WOProfileComponents"]
boolValue] ? 1 : 0;
coreOnRecursion = [ud boolForKey:@"WOCoreOnRecursiveSubcomponents"];
NSDateClass = [NSDate class];
}
- (id)initWithName:(NSString *)_name
associations:(NSDictionary *)_config
template:(WOElement *)_c
{
if ((self = [super initWithName:_name associations:_config template:_c])) {
self->containsForm = YES;
self->activeComponent = OWGetProperty(_config, @"component");
self->bindings = [_config copyWithZone:[self zone]];
[(NSMutableDictionary *)_config removeAllObjects];
self->template = [_c retain];
}
return self;
}
- (void)dealloc {
[self->template release];
[self->bindings release];
[self->activeComponent release];
[self->child release];
[super dealloc];
}
/* accessors */
- (WOComponent *)childComponent {
return self->child; // THREAD
}
static inline void
_updateComponent(WOComponentReference *self, WOContext *_ctx)
{
/*
Note: this is rather dangerous. We keep a processing state - the 'child'
ivar containing the component - inside the dynamic element. Yet
elements are supposed to be stateless.
As long as we are single-threaded this should not be a problem, but
keep in mind that this element is NOT reentrant.
*/
// THREAD
WOComponent *newChild;
if (self->activeComponent == nil)
return;
newChild = [self->activeComponent valueInComponent:[_ctx component]];
#if 0
if (newChild == nil) {
[[_ctx component] logWithFormat:
@"missing child (got nil) "
@"(element=%@, association=%@, component=%@).",
self, self->activeComponent,
[[_ctx component] name]];
}
#endif
if (newChild != self->child) { // THREAD
#if 0
NSLog(@"switched component %@ => %@ ...",
[self->child name], [newChild name]);
#endif
ASSIGN(self->child, newChild);
[newChild setParent:[_ctx component]];
[newChild setBindings:self->bindings];
}
}
/* handling requests */
- (void)takeValuesFromRequest:(WORequest *)_req inContext:(WOContext *)_ctx {
_updateComponent(self, _ctx);
if (self->child != nil) {
[_ctx enterComponent:self->child content:self->template];
[self->child takeValuesFromRequest:_req inContext:_ctx];
[_ctx leaveComponent:self->child];
}
}
- (id)invokeActionForRequest:(WORequest *)_req inContext:(WOContext *)_ctx {
id result = nil;
_updateComponent(self, _ctx);
if (self->child != nil) {
[_ctx enterComponent:self->child content:self->template];
result = [self->child invokeActionForRequest:_req inContext:_ctx];
[_ctx leaveComponent:self->child];
}
return result;
}
/* generate response */
- (void)appendToResponse:(WOResponse *)_response inContext:(WOContext *)_ctx {
WOComponent *parent;
parent = [_ctx component];
_updateComponent(self, _ctx);
if (self->child == parent) {
[self warnWithFormat:@"recursive call of component: %@", parent];
if (coreOnRecursion)
abort();
}
if (self->child != nil) {
NSTimeInterval st = 0.0;
if (profileComponents)
st = [[NSDateClass date] timeIntervalSince1970];
[_ctx enterComponent:self->child content:self->template];
[self->child appendToResponse:_response inContext:_ctx];
[_ctx leaveComponent:self->child];
if (profileComponents) {
NSTimeInterval diff;
int i;
diff = [[NSDateClass date] timeIntervalSince1970] - st;
for (i = [_ctx componentStackCount]; i >= 0; i--)
printf(" ");
printf("[%s %s]: %0.3fs\n",
[[child name] cString],
sel_getName(_cmd),
diff);
}
}
else if (debugOn) {
[self debugWithFormat:@"missing component for reference: %@",
self->activeComponent];
if (![_ctx isRenderingDisabled]) {
[_response appendContentHTMLString:@"[missing component for reference: "];
[_response appendContentHTMLString:[self->activeComponent description]];
[_response appendContentHTMLString:@"]"];
}
}
}
/* description */
- (NSString *)description {
NSMutableString *desc;
desc = [NSMutableString stringWithCapacity:64];
[desc appendFormat:@"<%@[0x%p]:", NSStringFromClass([self class]), self];
if (self->child != nil) {
[desc appendFormat:@" child=%@[0x%p] childName=%@",
NSStringFromClass([self->child class]),
self->child, [self->child name]];
}
[desc appendString:@">"];
return desc;
}
@end /* WOComponentReference */
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