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1 /*
2  * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include "config.h"
27 #include "WebKitDLL.h"
28 #include "WebActionPropertyBag.h"
29 
30 #include "COMPtr.h"
31 #include "DOMCoreClasses.h"
32 #include "WebElementPropertyBag.h"
33 #include "WebKit.h"
34 
35 #pragma warning(push, 0)
36 #include <WebCore/BString.h>
37 #include <WebCore/EventHandler.h>
38 #include <WebCore/MouseEvent.h>
39 #include <WebCore/HitTestResult.h>
40 #pragma warning(pop)
41 
42 using namespace WebCore;
43 
44 // WebActionPropertyBag ------------------------------------------------
45 
WebActionPropertyBag(const NavigationAction & action,PassRefPtr<HTMLFormElement> form,PassRefPtr<Frame> frame)46 WebActionPropertyBag::WebActionPropertyBag(const NavigationAction& action, PassRefPtr<HTMLFormElement> form, PassRefPtr<Frame> frame)
47     : m_refCount(0)
48     , m_action(action)
49     , m_form(form)
50     , m_frame(frame)
51 {
52     gClassCount++;
53     gClassNameCount.add("WebActionPropertyBag");
54 }
55 
~WebActionPropertyBag()56 WebActionPropertyBag::~WebActionPropertyBag()
57 {
58     gClassCount--;
59     gClassNameCount.remove("WebActionPropertyBag");
60 }
61 
createInstance(const NavigationAction & action,PassRefPtr<HTMLFormElement> form,PassRefPtr<Frame> frame)62 WebActionPropertyBag* WebActionPropertyBag::createInstance(const NavigationAction& action, PassRefPtr<HTMLFormElement> form, PassRefPtr<Frame> frame)
63 {
64     WebActionPropertyBag* instance = new WebActionPropertyBag(action, form, frame);
65     instance->AddRef();
66     return instance;
67 }
68 
69 // IUnknown -------------------------------------------------------------------
70 
QueryInterface(REFIID riid,void ** ppvObject)71 HRESULT STDMETHODCALLTYPE WebActionPropertyBag::QueryInterface(REFIID riid, void** ppvObject)
72 {
73     *ppvObject = 0;
74     if (IsEqualGUID(riid, IID_IUnknown))
75         *ppvObject = static_cast<IPropertyBag*>(this);
76     else if (IsEqualGUID(riid, IID_IPropertyBag))
77         *ppvObject = static_cast<IPropertyBag*>(this);
78     else
79         return E_NOINTERFACE;
80 
81     AddRef();
82     return S_OK;
83 }
84 
AddRef()85 ULONG STDMETHODCALLTYPE WebActionPropertyBag::AddRef()
86 {
87     return ++m_refCount;
88 }
89 
Release()90 ULONG STDMETHODCALLTYPE WebActionPropertyBag::Release()
91 {
92     ULONG newRef = --m_refCount;
93     if (!newRef)
94         delete this;
95 
96     return newRef;
97 }
98 
isEqual(LPCWSTR s1,LPCWSTR s2)99 static bool isEqual(LPCWSTR s1, LPCWSTR s2)
100 {
101     return !wcscmp(s1, s2);
102 }
103 
findMouseEvent(const Event * event)104 static const MouseEvent* findMouseEvent(const Event* event)
105 {
106     for (const Event* e = event; e; e = e->underlyingEvent())
107         if (e->isMouseEvent())
108             return static_cast<const MouseEvent*>(e);
109     return 0;
110 }
111 
Read(LPCOLESTR pszPropName,VARIANT * pVar,IErrorLog *)112 HRESULT STDMETHODCALLTYPE WebActionPropertyBag::Read(LPCOLESTR pszPropName, VARIANT *pVar, IErrorLog * /*pErrorLog*/)
113 {
114     if (!pszPropName)
115         return E_POINTER;
116 
117     VariantClear(pVar);
118 
119     if (isEqual(pszPropName, WebActionNavigationTypeKey)) {
120         V_VT(pVar) = VT_I4;
121         V_I4(pVar) = m_action.type();
122         return S_OK;
123     }
124     if (isEqual(pszPropName, WebActionElementKey)) {
125         if (const MouseEvent* mouseEvent = findMouseEvent(m_action.event())) {
126             V_VT(pVar) = VT_UNKNOWN;
127             V_UNKNOWN(pVar) = WebElementPropertyBag::createInstance(m_frame->eventHandler()->hitTestResultAtPoint(mouseEvent->absoluteLocation(), false));
128             return S_OK;
129         }
130     }
131     if (isEqual(pszPropName, WebActionButtonKey)) {
132         if (const MouseEvent* mouseEvent = findMouseEvent(m_action.event())) {
133             V_VT(pVar) = VT_I4;
134             V_I4(pVar) = mouseEvent->button();
135             return S_OK;
136         }
137     }
138     if (isEqual(pszPropName, WebActionOriginalURLKey)) {
139         V_VT(pVar) = VT_BSTR;
140         V_BSTR(pVar) = BString(m_action.url().string()).release();
141         return S_OK;
142     }
143     if (isEqual(pszPropName, WebActionModifierFlagsKey)) {
144         if (const UIEventWithKeyState* keyEvent = findEventWithKeyState(const_cast<Event*>(m_action.event()))) {
145             int modifiers = 0;
146 
147             if (keyEvent->ctrlKey())
148                 modifiers |= MK_CONTROL;
149             if (keyEvent->shiftKey())
150                 modifiers |= MK_SHIFT;
151             if (keyEvent->altKey())
152                 modifiers |= MK_ALT;
153 
154             V_VT(pVar) = VT_I4;
155             V_I4(pVar) = modifiers;
156             return S_OK;
157         }
158     }
159     if (isEqual(pszPropName, WebActionFormKey)) {
160         IDOMNode* form = DOMNode::createInstance(m_form.get());
161         V_VT(pVar) = VT_UNKNOWN;
162         V_UNKNOWN(pVar) = form;
163         return S_OK;
164     }
165     return E_INVALIDARG;
166 }
167 
Write(LPCOLESTR pszPropName,VARIANT * pVar)168 HRESULT STDMETHODCALLTYPE WebActionPropertyBag::Write(LPCOLESTR pszPropName, VARIANT* pVar)
169 {
170     if (!pszPropName || !pVar)
171         return E_POINTER;
172 
173     return E_FAIL;
174 }
175