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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsCOMPtr.h"
#include "nsIAtom.h"
#include "nsIDOMEventListener.h"
#include "nsIDOMKeyEvent.h"
#include "nsIDOMMouseEvent.h"
#include "nsXBLPrototypeHandler.h"
#include "nsContentUtils.h"
#include "mozilla/dom/Event.h" // for nsIDOMEvent::InternalDOMEvent()
#include "mozilla/dom/EventTarget.h"
#include "mozilla/TextEvents.h"
using namespace mozilla;
using namespace mozilla::dom;
nsXBLEventHandler::nsXBLEventHandler(nsXBLPrototypeHandler* aHandler)
: mProtoHandler(aHandler)
{
}
nsXBLEventHandler::~nsXBLEventHandler()
{
}
NS_IMPL_ISUPPORTS(nsXBLEventHandler, nsIDOMEventListener)
NS_IMETHODIMP
nsXBLEventHandler::HandleEvent(nsIDOMEvent* aEvent)
{
if (!mProtoHandler)
return NS_ERROR_FAILURE;
uint8_t phase = mProtoHandler->GetPhase();
if (phase == NS_PHASE_TARGET) {
uint16_t eventPhase;
aEvent->GetEventPhase(&eventPhase);
if (eventPhase != nsIDOMEvent::AT_TARGET)
return NS_OK;
}
if (!EventMatched(aEvent))
return NS_OK;
mProtoHandler->ExecuteHandler(aEvent->InternalDOMEvent()->GetCurrentTarget(),
aEvent);
return NS_OK;
}
nsXBLMouseEventHandler::nsXBLMouseEventHandler(nsXBLPrototypeHandler* aHandler)
: nsXBLEventHandler(aHandler)
{
}
nsXBLMouseEventHandler::~nsXBLMouseEventHandler()
{
}
bool
nsXBLMouseEventHandler::EventMatched(nsIDOMEvent* aEvent)
{
nsCOMPtr<nsIDOMMouseEvent> mouse(do_QueryInterface(aEvent));
return mouse && mProtoHandler->MouseEventMatched(mouse);
}
nsXBLKeyEventHandler::nsXBLKeyEventHandler(nsIAtom* aEventType, uint8_t aPhase,
uint8_t aType)
: mEventType(aEventType),
mPhase(aPhase),
mType(aType),
mIsBoundToChrome(false),
mUsingContentXBLScope(false)
{
}
nsXBLKeyEventHandler::~nsXBLKeyEventHandler()
{
}
NS_IMPL_ISUPPORTS(nsXBLKeyEventHandler, nsIDOMEventListener)
bool
nsXBLKeyEventHandler::ExecuteMatchedHandlers(
nsIDOMKeyEvent* aKeyEvent,
uint32_t aCharCode,
const IgnoreModifierState& aIgnoreModifierState)
{
WidgetEvent* event = aKeyEvent->AsEvent()->WidgetEventPtr();
nsCOMPtr<EventTarget> target = aKeyEvent->AsEvent()->InternalDOMEvent()->GetCurrentTarget();
bool executed = false;
for (uint32_t i = 0; i < mProtoHandlers.Length(); ++i) {
nsXBLPrototypeHandler* handler = mProtoHandlers[i];
bool hasAllowUntrustedAttr = handler->HasAllowUntrustedAttr();
if ((event->IsTrusted() ||
(hasAllowUntrustedAttr && handler->AllowUntrustedEvents()) ||
(!hasAllowUntrustedAttr && !mIsBoundToChrome && !mUsingContentXBLScope)) &&
handler->KeyEventMatched(aKeyEvent, aCharCode, aIgnoreModifierState)) {
handler->ExecuteHandler(target, aKeyEvent->AsEvent());
executed = true;
}
}
#ifdef XP_WIN
// Windows native applications ignore Windows-Logo key state when checking
// shortcut keys even if the key is pressed. Therefore, if there is no
// shortcut key which exactly matches current modifier state, we should
// retry to look for a shortcut key without the Windows-Logo key press.
if (!executed && !aIgnoreModifierState.mOS) {
WidgetKeyboardEvent* keyEvent = event->AsKeyboardEvent();
if (keyEvent && keyEvent->IsOS()) {
IgnoreModifierState ignoreModifierState(aIgnoreModifierState);
ignoreModifierState.mOS = true;
return ExecuteMatchedHandlers(aKeyEvent, aCharCode, ignoreModifierState);
}
}
#endif
return executed;
}
NS_IMETHODIMP
nsXBLKeyEventHandler::HandleEvent(nsIDOMEvent* aEvent)
{
uint32_t count = mProtoHandlers.Length();
if (count == 0)
return NS_ERROR_FAILURE;
if (mPhase == NS_PHASE_TARGET) {
uint16_t eventPhase;
aEvent->GetEventPhase(&eventPhase);
if (eventPhase != nsIDOMEvent::AT_TARGET)
return NS_OK;
}
nsCOMPtr<nsIDOMKeyEvent> key(do_QueryInterface(aEvent));
if (!key)
return NS_OK;
WidgetKeyboardEvent* nativeKeyboardEvent =
aEvent->WidgetEventPtr()->AsKeyboardEvent();
MOZ_ASSERT(nativeKeyboardEvent);
AutoShortcutKeyCandidateArray shortcutKeys;
nativeKeyboardEvent->GetShortcutKeyCandidates(shortcutKeys);
if (shortcutKeys.IsEmpty()) {
ExecuteMatchedHandlers(key, 0, IgnoreModifierState());
return NS_OK;
}
for (uint32_t i = 0; i < shortcutKeys.Length(); ++i) {
IgnoreModifierState ignoreModifierState;
ignoreModifierState.mShift = shortcutKeys[i].mIgnoreShift;
if (ExecuteMatchedHandlers(key, shortcutKeys[i].mCharCode,
ignoreModifierState)) {
return NS_OK;
}
}
return NS_OK;
}
///////////////////////////////////////////////////////////////////////////////////
already_AddRefed<nsXBLEventHandler>
NS_NewXBLEventHandler(nsXBLPrototypeHandler* aHandler,
nsIAtom* aEventType)
{
RefPtr<nsXBLEventHandler> handler;
switch (nsContentUtils::GetEventClassID(nsDependentAtomString(aEventType))) {
case eDragEventClass:
case eMouseEventClass:
case eMouseScrollEventClass:
case eWheelEventClass:
case eSimpleGestureEventClass:
handler = new nsXBLMouseEventHandler(aHandler);
break;
default:
handler = new nsXBLEventHandler(aHandler);
break;
}
return handler.forget();
}
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