1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/xbl/nsXBLWindowKeyHandler.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,91 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsXBLWindowKeyHandler_h__
1.10 +#define nsXBLWindowKeyHandler_h__
1.11 +
1.12 +#include "nsWeakPtr.h"
1.13 +#include "nsIDOMEventListener.h"
1.14 +
1.15 +class nsIAtom;
1.16 +class nsIDOMElement;
1.17 +class nsIDOMKeyEvent;
1.18 +class nsXBLSpecialDocInfo;
1.19 +class nsXBLPrototypeHandler;
1.20 +
1.21 +namespace mozilla {
1.22 +namespace dom {
1.23 +class Element;
1.24 +class EventTarget;
1.25 +}
1.26 +}
1.27 +
1.28 +class nsXBLWindowKeyHandler : public nsIDOMEventListener
1.29 +{
1.30 +public:
1.31 + nsXBLWindowKeyHandler(nsIDOMElement* aElement, mozilla::dom::EventTarget* aTarget);
1.32 + virtual ~nsXBLWindowKeyHandler();
1.33 +
1.34 + NS_DECL_ISUPPORTS
1.35 + NS_DECL_NSIDOMEVENTLISTENER
1.36 +
1.37 +protected:
1.38 + nsresult WalkHandlers(nsIDOMKeyEvent* aKeyEvent, nsIAtom* aEventType);
1.39 +
1.40 + // walk the handlers, looking for one to handle the event
1.41 + bool WalkHandlersInternal(nsIDOMKeyEvent* aKeyEvent,
1.42 + nsIAtom* aEventType,
1.43 + nsXBLPrototypeHandler* aHandler,
1.44 + bool aExecute);
1.45 +
1.46 + // walk the handlers for aEvent, aCharCode and aIgnoreShiftKey. Execute it
1.47 + // if aExecute = true.
1.48 + bool WalkHandlersAndExecute(nsIDOMKeyEvent* aKeyEvent, nsIAtom* aEventType,
1.49 + nsXBLPrototypeHandler* aHandler,
1.50 + uint32_t aCharCode, bool aIgnoreShiftKey,
1.51 + bool aExecute);
1.52 +
1.53 + // HandleEvent function for the capturing phase.
1.54 + void HandleEventOnCapture(nsIDOMKeyEvent* aEvent);
1.55 +
1.56 + // Check if any handler would handle the given event.
1.57 + bool HasHandlerForEvent(nsIDOMKeyEvent* aEvent);
1.58 +
1.59 + // lazily load the handlers. Overridden to handle being attached
1.60 + // to a particular element rather than the document
1.61 + nsresult EnsureHandlers();
1.62 +
1.63 + // check if the given handler cares about the given key event
1.64 + bool EventMatched(nsXBLPrototypeHandler* inHandler, nsIAtom* inEventType,
1.65 + nsIDOMKeyEvent* inEvent, uint32_t aCharCode,
1.66 + bool aIgnoreShiftKey);
1.67 +
1.68 + // Is an HTML editable element focused
1.69 + bool IsHTMLEditableFieldFocused();
1.70 +
1.71 + // Returns the element which was passed as a parameter to the constructor,
1.72 + // unless the element has been removed from the document. Optionally returns
1.73 + // whether the disabled attribute is set on the element (assuming the element
1.74 + // is non-null).
1.75 + already_AddRefed<mozilla::dom::Element> GetElement(bool* aIsDisabled = nullptr);
1.76 + // Using weak pointer to the DOM Element.
1.77 + nsWeakPtr mWeakPtrForElement;
1.78 + mozilla::dom::EventTarget* mTarget; // weak ref
1.79 +
1.80 + // these are not owning references; the prototype handlers are owned
1.81 + // by the prototype bindings which are owned by the docinfo.
1.82 + nsXBLPrototypeHandler* mHandler; // platform bindings
1.83 + nsXBLPrototypeHandler* mUserHandler; // user-specific bindings
1.84 +
1.85 + // holds document info about bindings
1.86 + static nsXBLSpecialDocInfo* sXBLSpecialDocInfo;
1.87 + static uint32_t sRefCnt;
1.88 +};
1.89 +
1.90 +already_AddRefed<nsXBLWindowKeyHandler>
1.91 +NS_NewXBLWindowKeyHandler(nsIDOMElement* aElement,
1.92 + mozilla::dom::EventTarget* aTarget);
1.93 +
1.94 +#endif
