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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/xbl/nsXBLEventHandler.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/xbl/nsXBLEventHandler.cpp')
-rw-r--r--dom/xbl/nsXBLEventHandler.cpp187
1 files changed, 187 insertions, 0 deletions
diff --git a/dom/xbl/nsXBLEventHandler.cpp b/dom/xbl/nsXBLEventHandler.cpp
new file mode 100644
index 000000000..6a873cf3b
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+++ b/dom/xbl/nsXBLEventHandler.cpp
@@ -0,0 +1,187 @@
+/* -*- 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();
+}