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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/events/event_handler.h"
#include "ui/events/event.h"
#include "ui/events/event_dispatcher.h"
namespace ui {
// static
bool EventHandler::check_targets_ = true;
EventHandler::EventHandler() {
}
EventHandler::~EventHandler() {
while (!dispatchers_.empty()) {
EventDispatcher* dispatcher = dispatchers_.top();
dispatchers_.pop();
dispatcher->OnHandlerDestroyed(this);
}
// Should have been removed from all pre-target handlers.
CHECK(!check_targets_ || targets_installed_on_.empty());
}
void EventHandler::OnEvent(Event* event) {
if (event->IsKeyEvent())
OnKeyEvent(event->AsKeyEvent());
else if (event->IsMouseEvent())
OnMouseEvent(event->AsMouseEvent());
else if (event->IsScrollEvent())
OnScrollEvent(event->AsScrollEvent());
else if (event->IsTouchEvent())
OnTouchEvent(event->AsTouchEvent());
else if (event->IsGestureEvent())
OnGestureEvent(event->AsGestureEvent());
else if (event->IsCancelModeEvent())
OnCancelMode(event->AsCancelModeEvent());
}
void EventHandler::OnKeyEvent(KeyEvent* event) {
}
void EventHandler::OnMouseEvent(MouseEvent* event) {
}
void EventHandler::OnScrollEvent(ScrollEvent* event) {
}
void EventHandler::OnTouchEvent(TouchEvent* event) {
}
void EventHandler::OnGestureEvent(GestureEvent* event) {
}
void EventHandler::OnCancelMode(CancelModeEvent* event) {
}
} // namespace ui
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