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Diffstat (limited to '')
-rw-r--r-- | widget/MiscEvents.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/widget/MiscEvents.h b/widget/MiscEvents.h new file mode 100644 index 0000000000..38c270756e --- /dev/null +++ b/widget/MiscEvents.h @@ -0,0 +1,142 @@ +/* -*- 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 "nsAtom.h" +#include "nsGkAtoms.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; } + + protected: + WidgetCommandEvent(bool aIsTrusted, nsAtom* aEventType, nsAtom* aCommand, + nsIWidget* aWidget) + : WidgetGUIEvent(aIsTrusted, eUnidentifiedEvent, aWidget, + eCommandEventClass), + mCommand(aCommand) { + mSpecifiedEventType = aEventType; + } + + public: + /** + * Constructor to initialize an app command. This is the only case to + * initialize this class as a command in C++ stack. + */ + WidgetCommandEvent(bool aIsTrusted, nsAtom* aCommand, nsIWidget* aWidget) + : WidgetCommandEvent(aIsTrusted, nsGkAtoms::onAppCommand, aCommand, + aWidget) {} + + /** + * Constructor to initialize as internal event of dom::CommandEvent. + */ + WidgetCommandEvent() : WidgetCommandEvent(false, nullptr, nullptr, nullptr) {} + + 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; + } + + RefPtr<nsAtom> 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. + } +}; + +} // namespace mozilla + +#endif // mozilla_MiscEvents_h__ |