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Create a simple example of using the COM-based C++ listeners.
A new onclick event is attached (via C++) to the WebKit logo in the default test pattern displayed on startup. Clicking on the logo causes a message box to be displayed. https://bugs.webkit.org/show_bug.cgi?id=61885 Reviewed by Brian Weinstein. * WinLauncher/DOMDefaultImpl.h: Added. Stub implementation of the WebScriptObject and DOMEventListener. * WinLauncher/WinLauncher.cpp: (SimpleEventListener::SimpleEventListener): Example implementation of a simple DOM event listener. (SimpleEventListener::handleEvent): (WinLauncherWebHost::didFinishLoadForFrame): Added implementation to bind a C++ method to the 'onclick' event for the WebKit logo. (_tWinMain): * WinLauncher/WinLauncher.h: * WinLauncher/WinLauncher.vcproj: Add new DOMDefaultImpl.h file. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@89144 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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bfulgham@webkit.org
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Jun 17, 2011
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| /* | ||
| * Copyright (C) 2011 Anthony Johnson. All Rights Reserved. | ||
| * Copyright (C) 2011 Brent Fulgham. All Rights Reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | ||
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | ||
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | ||
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
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| #ifndef DOMDefaultImpl_h | ||
| #define DOMDefaultImpl_h | ||
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| #include <WebKit/WebKit.h> | ||
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| class WebScriptObject : public IWebScriptObject { | ||
| public: | ||
| WebScriptObject() : m_refCount(0) | ||
| { | ||
| } | ||
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| virtual ~WebScriptObject() | ||
| { | ||
| } | ||
|
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| // IUnknown | ||
| virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject); | ||
| virtual ULONG STDMETHODCALLTYPE AddRef(void); | ||
| virtual ULONG STDMETHODCALLTYPE Release(void); | ||
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| // IWebScriptObject | ||
| virtual HRESULT STDMETHODCALLTYPE throwException(BSTR, BOOL*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE callWebScriptMethod(BSTR, const VARIANT[], int, VARIANT*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE evaluateWebScript(BSTR, VARIANT*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE removeWebScriptKey(BSTR) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE stringRepresentation(BSTR*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE webScriptValueAtIndex(unsigned int, VARIANT*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE setWebScriptValueAtIndex(unsigned int, VARIANT) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE setException(BSTR) { return E_NOTIMPL; } | ||
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| protected: | ||
| ULONG m_refCount; | ||
| }; | ||
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| class DOMObject : public WebScriptObject, public IDOMObject { | ||
| public: | ||
| // IUnknown | ||
| virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject); | ||
| }; | ||
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| class DOMEventListener : public DOMObject, public IDOMEventListener { | ||
| public: | ||
| // IUnknown | ||
| virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject); | ||
| virtual ULONG STDMETHODCALLTYPE AddRef(void); | ||
| virtual ULONG STDMETHODCALLTYPE Release(void); | ||
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| // IWebScriptObject | ||
| virtual HRESULT STDMETHODCALLTYPE throwException(BSTR, BOOL*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE callWebScriptMethod(BSTR, const VARIANT[], int, VARIANT*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE evaluateWebScript(BSTR, VARIANT*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE removeWebScriptKey(BSTR) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE stringRepresentation(BSTR*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE webScriptValueAtIndex(unsigned int, VARIANT*) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE setWebScriptValueAtIndex(unsigned int, VARIANT) { return E_NOTIMPL; } | ||
| virtual HRESULT STDMETHODCALLTYPE setException(BSTR) { return E_NOTIMPL; } | ||
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| // IDOMEventListener | ||
| virtual HRESULT STDMETHODCALLTYPE handleEvent(IDOMEvent*) { return E_NOTIMPL; } | ||
| }; | ||
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| // IUnknown ------------------------------------------------------------------- | ||
| HRESULT WebScriptObject::QueryInterface(REFIID riid, void** ppvObject) | ||
| { | ||
| *ppvObject = 0; | ||
| if (IsEqualGUID(riid, IID_IUnknown)) | ||
| *ppvObject = static_cast<IWebScriptObject*>(this); | ||
| else if (IsEqualGUID(riid, IID_IWebScriptObject)) | ||
| *ppvObject = static_cast<IWebScriptObject*>(this); | ||
| else | ||
| return E_NOINTERFACE; | ||
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| AddRef(); | ||
| return S_OK; | ||
| } | ||
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| ULONG WebScriptObject::AddRef(void) | ||
| { | ||
| return ++m_refCount; | ||
| } | ||
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| ULONG WebScriptObject::Release(void) | ||
| { | ||
| ULONG newRef = --m_refCount; | ||
| if (!newRef) | ||
| delete(this); | ||
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| return newRef; | ||
| } | ||
|
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| // DOMObject ------------------------------------------------------------------- | ||
| HRESULT DOMObject::QueryInterface(REFIID riid, void** ppvObject) | ||
| { | ||
| *ppvObject = 0; | ||
| if (IsEqualGUID(riid, IID_IDOMObject)) | ||
| *ppvObject = static_cast<IDOMObject*>(this); | ||
| else | ||
| return WebScriptObject::QueryInterface(riid, ppvObject); | ||
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| WebScriptObject::AddRef(); | ||
| return S_OK; | ||
| } | ||
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| // DOMEventListener ------------------------------------------------------------------- | ||
| HRESULT DOMEventListener::QueryInterface(const IID &riid, void** ppvObject) | ||
| { | ||
| *ppvObject = 0; | ||
| if (IsEqualGUID(riid, IID_IDOMEventListener)) | ||
| *ppvObject = static_cast<IDOMEventListener*>(this); | ||
| else | ||
| return DOMObject::QueryInterface(riid, ppvObject); | ||
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| AddRef(); | ||
| return S_OK; | ||
| } | ||
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| ULONG DOMEventListener::AddRef(void) | ||
| { | ||
| return WebScriptObject::AddRef(); | ||
| } | ||
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| ULONG DOMEventListener::Release(void) | ||
| { | ||
| return WebScriptObject::Release(); | ||
| } | ||
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| #endif |
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