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Don't register already registered listeners

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This commit is contained in:
simon.kagstrom 2009-12-26 10:21:50 +00:00
parent 46757f1f1e
commit e2b34f1ee9
1 changed files with 9 additions and 5 deletions
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8
virtual_keyboard.cpp
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@ -225,11 +225,15 @@ void VirtualKeyboard::registerListener(KeyboardListener *kl)
int n_listeners = sizeof(this->listeners) / sizeof(*this->listeners); int n_listeners = sizeof(this->listeners) / sizeof(*this->listeners);
int i; int i;
/* Don't register already registered listeners */
for (i = 0; i < n_listeners; i++)
if (this->listeners[i] == kl)
return;
/* Find a free spot */
for (i = 0; i < n_listeners; i++) for (i = 0; i < n_listeners; i++)
{
if (!this->listeners[i]) if (!this->listeners[i])
break; break;
}
panic_if(i == n_listeners, panic_if(i == n_listeners,
"No free listeners!\n"); "No free listeners!\n");
this->listeners[i] = kl; this->listeners[i] = kl;