DeviceController.cpp [plain text]
#include "config.h"
#include "DeviceController.h"
#include "DeviceClient.h"
#include "Document.h"
namespace WebCore {
DeviceController::DeviceController(DeviceClient& client)
: m_client(client)
, m_timer(*this, &DeviceController::fireDeviceEvent)
{
}
void DeviceController::addDeviceEventListener(DOMWindow& window)
{
bool wasEmpty = m_listeners.isEmpty();
m_listeners.add(&window);
if (hasLastData()) {
m_lastEventListeners.add(&window);
if (!m_timer.isActive())
m_timer.startOneShot(0_s);
}
if (wasEmpty)
m_client.startUpdating();
}
void DeviceController::removeDeviceEventListener(DOMWindow& window)
{
m_listeners.remove(&window);
m_lastEventListeners.remove(&window);
if (m_listeners.isEmpty())
m_client.stopUpdating();
}
void DeviceController::removeAllDeviceEventListeners(DOMWindow& window)
{
m_listeners.removeAll(&window);
m_lastEventListeners.removeAll(&window);
if (m_listeners.isEmpty())
m_client.stopUpdating();
}
bool DeviceController::hasDeviceEventListener(DOMWindow& window) const
{
return m_listeners.contains(&window);
}
void DeviceController::dispatchDeviceEvent(Event& event)
{
for (auto& listener : copyToVector(m_listeners.values())) {
auto document = listener->document();
if (document && !document->activeDOMObjectsAreSuspended() && !document->activeDOMObjectsAreStopped())
listener->dispatchEvent(event);
}
}
void DeviceController::fireDeviceEvent()
{
ASSERT(hasLastData());
m_timer.stop();
auto listenerVector = copyToVector(m_lastEventListeners.values());
m_lastEventListeners.clear();
for (auto& listener : listenerVector) {
auto document = listener->document();
if (document && !document->activeDOMObjectsAreSuspended() && !document->activeDOMObjectsAreStopped()) {
if (auto lastEvent = getLastEvent())
listener->dispatchEvent(*lastEvent);
}
}
}
}