/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* 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/. */ #ifndef mozilla_MiscEvents_h__ #define mozilla_MiscEvents_h__ #include <stdint.h> #include "mozilla/BasicEvents.h" #include "nsCOMPtr.h" #include "nsIAtom.h" #include "nsITransferable.h" namespace mozilla { namespace dom { class PBrowserParent; class PBrowserChild; } // namespace dom /****************************************************************************** * mozilla::WidgetContentCommandEvent ******************************************************************************/ class WidgetContentCommandEvent : public WidgetGUIEvent { public: virtual WidgetContentCommandEvent* AsContentCommandEvent() override { return this; } WidgetContentCommandEvent(bool aIsTrusted, EventMessage aMessage, nsIWidget* aWidget, bool aOnlyEnabledCheck = false) : WidgetGUIEvent(aIsTrusted, aMessage, aWidget, eContentCommandEventClass) , mOnlyEnabledCheck(aOnlyEnabledCheck) , mSucceeded(false) , mIsEnabled(false) { } virtual WidgetEvent* Duplicate() const override { // This event isn't an internal event of any DOM event. NS_ASSERTION(!IsAllowedToDispatchDOMEvent(), "WidgetQueryContentEvent needs to support Duplicate()"); MOZ_CRASH("WidgetQueryContentEvent doesn't support Duplicate()"); return nullptr; } // eContentCommandPasteTransferable nsCOMPtr<nsITransferable> mTransferable; // [in] // eContentCommandScroll // for mScroll.mUnit enum { eCmdScrollUnit_Line, eCmdScrollUnit_Page, eCmdScrollUnit_Whole }; struct ScrollInfo { ScrollInfo() : mAmount(0), mUnit(eCmdScrollUnit_Line), mIsHorizontal(false) { } int32_t mAmount; // [in] uint8_t mUnit; // [in] bool mIsHorizontal; // [in] } mScroll; bool mOnlyEnabledCheck; // [in] bool mSucceeded; // [out] bool mIsEnabled; // [out] void AssignContentCommandEventData(const WidgetContentCommandEvent& aEvent, bool aCopyTargets) { AssignGUIEventData(aEvent, aCopyTargets); mScroll = aEvent.mScroll; mOnlyEnabledCheck = aEvent.mOnlyEnabledCheck; mSucceeded = aEvent.mSucceeded; mIsEnabled = aEvent.mIsEnabled; } }; /****************************************************************************** * mozilla::WidgetCommandEvent * * This sends a command to chrome. If you want to request what is performed * in focused content, you should use WidgetContentCommandEvent instead. * * XXX Should be |WidgetChromeCommandEvent|? ******************************************************************************/ class WidgetCommandEvent : public WidgetGUIEvent { public: virtual WidgetCommandEvent* AsCommandEvent() override { return this; } WidgetCommandEvent(bool aIsTrusted, nsIAtom* aEventType, nsIAtom* aCommand, nsIWidget* aWidget) : WidgetGUIEvent(aIsTrusted, eUnidentifiedEvent, aWidget, eCommandEventClass) , mCommand(aCommand) { mSpecifiedEventType = aEventType; } virtual WidgetEvent* Duplicate() const override { MOZ_ASSERT(mClass == eCommandEventClass, "Duplicate() must be overridden by sub class"); // Not copying widget, it is a weak reference. WidgetCommandEvent* result = new WidgetCommandEvent(false, mSpecifiedEventType, mCommand, nullptr); result->AssignCommandEventData(*this, true); result->mFlags = mFlags; return result; } nsCOMPtr<nsIAtom> mCommand; // XXX Not tested by test_assign_event_data.html void AssignCommandEventData(const WidgetCommandEvent& aEvent, bool aCopyTargets) { AssignGUIEventData(aEvent, aCopyTargets); // mCommand must have been initialized with the constructor. } }; /****************************************************************************** * mozilla::WidgetPluginEvent * * This event delivers only a native event to focused plugin. ******************************************************************************/ class WidgetPluginEvent : public WidgetGUIEvent { private: friend class dom::PBrowserParent; friend class dom::PBrowserChild; public: virtual WidgetPluginEvent* AsPluginEvent() override { return this; } WidgetPluginEvent(bool aIsTrusted, EventMessage aMessage, nsIWidget* aWidget) : WidgetGUIEvent(aIsTrusted, aMessage, aWidget, ePluginEventClass) , mRetargetToFocusedDocument(false) { } virtual WidgetEvent* Duplicate() const override { // NOTE: PluginEvent has to be dispatched to nsIFrame::HandleEvent(). // So, this event needs to support Duplicate(). MOZ_ASSERT(mClass == ePluginEventClass, "Duplicate() must be overridden by sub class"); // Not copying widget, it is a weak reference. WidgetPluginEvent* result = new WidgetPluginEvent(false, mMessage, nullptr); result->AssignPluginEventData(*this, true); result->mFlags = mFlags; return result; } // If true, this event needs to be retargeted to focused document. // Otherwise, never retargeted. Defaults to false. bool mRetargetToFocusedDocument; void AssignPluginEventData(const WidgetPluginEvent& aEvent, bool aCopyTargets) { AssignGUIEventData(aEvent, aCopyTargets); mRetargetToFocusedDocument = aEvent.mRetargetToFocusedDocument; } protected: WidgetPluginEvent() { } }; } // namespace mozilla #endif // mozilla_MiscEvents_h__