/*
 * Header includes for ieframe.dll
 *
 * Copyright 2011 Jacek Caban for CodeWeavers
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>

#define COBJMACROS
#define NONAMELESSUNION

#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"

#include "ole2.h"
#include "olectl.h"
#include "shlobj.h"
#include "mshtmhst.h"
#include "exdisp.h"
#include "hlink.h"
#include "htiframe.h"

#include "wine/unicode.h"
#include "wine/list.h"

typedef struct ConnectionPoint ConnectionPoint;
typedef struct DocHost DocHost;

typedef struct {
    IConnectionPointContainer IConnectionPointContainer_iface;

    ConnectionPoint *wbe2;
    ConnectionPoint *wbe;
    ConnectionPoint *pns;

    IUnknown *impl;
} ConnectionPointContainer;

typedef struct {
    IHlinkFrame    IHlinkFrame_iface;
    ITargetFrame2  ITargetFrame2_iface;

    IUnknown *outer;
    DocHost *doc_host;
} HlinkFrame;

struct _task_header_t;

typedef void (*task_proc_t)(DocHost*, struct _task_header_t*);
typedef void (*task_destr_t)(struct _task_header_t*);

typedef struct _task_header_t {
    struct list entry;
    task_proc_t proc;
    task_destr_t destr;
} task_header_t;

typedef struct _IDocHostContainerVtbl
{
    ULONG (*addref)(DocHost*);
    ULONG (*release)(DocHost*);
    void (WINAPI* GetDocObjRect)(DocHost*,RECT*);
    HRESULT (WINAPI* SetStatusText)(DocHost*,LPCWSTR);
    void (WINAPI* SetURL)(DocHost*,LPCWSTR);
    HRESULT (*exec)(DocHost*,const GUID*,DWORD,DWORD,VARIANT*,VARIANT*);
} IDocHostContainerVtbl;

struct DocHost {
    IOleClientSite      IOleClientSite_iface;
    IOleInPlaceSiteEx   IOleInPlaceSiteEx_iface;
    IDocHostUIHandler2  IDocHostUIHandler2_iface;
    IOleDocumentSite    IOleDocumentSite_iface;
    IOleControlSite     IOleControlSite_iface;
    IOleCommandTarget   IOleCommandTarget_iface;
    IDispatch           IDispatch_iface;
    IPropertyNotifySink IPropertyNotifySink_iface;
    IServiceProvider    IServiceProvider_iface;

    /* Interfaces of InPlaceFrame object */
    IOleInPlaceFrame  IOleInPlaceFrame_iface;

    IDispatch *disp;

    IDispatch *client_disp;
    IDocHostUIHandler *hostui;
    IOleInPlaceFrame *frame;

    IUnknown *document;
    IOleDocumentView *view;
    IUnknown *doc_navigate;

    const IDocHostContainerVtbl *container_vtbl;

    HWND hwnd;
    HWND frame_hwnd;

    struct list task_queue;

    LPOLESTR url;

    VARIANT_BOOL silent;
    VARIANT_BOOL offline;
    VARIANT_BOOL busy;

    READYSTATE ready_state;
    READYSTATE doc_state;
    DWORD prop_notif_cookie;
    BOOL is_prop_notif;

    ConnectionPointContainer cps;
};

struct WebBrowser {
    IWebBrowser2             IWebBrowser2_iface;
    IOleObject               IOleObject_iface;
    IOleInPlaceObject        IOleInPlaceObject_iface;
    IOleControl              IOleControl_iface;
    IPersistStorage          IPersistStorage_iface;
    IPersistMemory           IPersistMemory_iface;
    IPersistStreamInit       IPersistStreamInit_iface;
    IProvideClassInfo2       IProvideClassInfo2_iface;
    IViewObject2             IViewObject2_iface;
    IOleInPlaceActiveObject  IOleInPlaceActiveObject_iface;
    IOleCommandTarget        IOleCommandTarget_iface;
    IServiceProvider         IServiceProvider_iface;
    IDataObject              IDataObject_iface;
    HlinkFrame hlink_frame;

    LONG ref;

    INT version;

    IOleClientSite *client;
    IOleContainer *container;
    IOleInPlaceSiteEx *inplace;

    /* window context */

    HWND frame_hwnd;
    IOleInPlaceUIWindow *uiwindow;
    RECT pos_rect;
    RECT clip_rect;
    OLEINPLACEFRAMEINFO frameinfo;
    SIZEL extent;

    HWND shell_embedding_hwnd;

    VARIANT_BOOL register_browser;
    VARIANT_BOOL visible;
    VARIANT_BOOL menu_bar;
    VARIANT_BOOL address_bar;
    VARIANT_BOOL status_bar;
    VARIANT_BOOL tool_bar;
    VARIANT_BOOL full_screen;
    VARIANT_BOOL theater_mode;

    DocHost doc_host;
};

typedef struct {
    DocHost doc_host;

    LONG ref;

    InternetExplorer *ie;
} IEDocHost;

struct InternetExplorer {
    IWebBrowser2 IWebBrowser2_iface;
    HlinkFrame hlink_frame;

    LONG ref;

    HWND frame_hwnd;
    HWND status_hwnd;
    HMENU menu;
    BOOL nohome;

    struct list entry;
    IEDocHost *doc_host;
};

void WebBrowser_OleObject_Init(WebBrowser*) DECLSPEC_HIDDEN;
void WebBrowser_ViewObject_Init(WebBrowser*) DECLSPEC_HIDDEN;
void WebBrowser_Persist_Init(WebBrowser*) DECLSPEC_HIDDEN;
void WebBrowser_ClassInfo_Init(WebBrowser*) DECLSPEC_HIDDEN;

void WebBrowser_OleObject_Destroy(WebBrowser*) DECLSPEC_HIDDEN;

void DocHost_Init(DocHost*,IDispatch*,const IDocHostContainerVtbl*) DECLSPEC_HIDDEN;
void DocHost_Release(DocHost*) DECLSPEC_HIDDEN;
void DocHost_ClientSite_Init(DocHost*) DECLSPEC_HIDDEN;
void DocHost_ClientSite_Release(DocHost*) DECLSPEC_HIDDEN;
void DocHost_Frame_Init(DocHost*) DECLSPEC_HIDDEN;
void release_dochost_client(DocHost*) DECLSPEC_HIDDEN;

void HlinkFrame_Init(HlinkFrame*,IUnknown*,DocHost*) DECLSPEC_HIDDEN;
BOOL HlinkFrame_QI(HlinkFrame*,REFIID,void**) DECLSPEC_HIDDEN;

HRESULT ShellBrowser_Create(IShellBrowser**) DECLSPEC_HIDDEN;

void ConnectionPointContainer_Init(ConnectionPointContainer*,IUnknown*) DECLSPEC_HIDDEN;
void ConnectionPointContainer_Destroy(ConnectionPointContainer*) DECLSPEC_HIDDEN;

void call_sink(ConnectionPoint*,DISPID,DISPPARAMS*) DECLSPEC_HIDDEN;
HRESULT navigate_url(DocHost*,LPCWSTR,const VARIANT*,const VARIANT*,VARIANT*,VARIANT*) DECLSPEC_HIDDEN;
HRESULT go_home(DocHost*) DECLSPEC_HIDDEN;
HRESULT get_location_url(DocHost*,BSTR*) DECLSPEC_HIDDEN;
void handle_navigation_error(DocHost*,HRESULT,BSTR,IHTMLWindow2*) DECLSPEC_HIDDEN;
HRESULT dochost_object_available(DocHost*,IUnknown*) DECLSPEC_HIDDEN;
void set_doc_state(DocHost*,READYSTATE) DECLSPEC_HIDDEN;
void deactivate_document(DocHost*) DECLSPEC_HIDDEN;
void create_doc_view_hwnd(DocHost*) DECLSPEC_HIDDEN;

#define WM_DOCHOSTTASK (WM_USER+0x300)
void push_dochost_task(DocHost*,task_header_t*,task_proc_t,task_destr_t,BOOL) DECLSPEC_HIDDEN;
void abort_dochost_tasks(DocHost*,task_proc_t) DECLSPEC_HIDDEN;
LRESULT process_dochost_tasks(DocHost*) DECLSPEC_HIDDEN;

void InternetExplorer_WebBrowser_Init(InternetExplorer*) DECLSPEC_HIDDEN;
HRESULT update_ie_statustext(InternetExplorer*, LPCWSTR) DECLSPEC_HIDDEN;
void released_obj(void) DECLSPEC_HIDDEN;

void register_iewindow_class(void) DECLSPEC_HIDDEN;
void unregister_iewindow_class(void) DECLSPEC_HIDDEN;

HRESULT get_typeinfo(ITypeInfo**) DECLSPEC_HIDDEN;
HRESULT register_class_object(BOOL) DECLSPEC_HIDDEN;

HRESULT WINAPI CUrlHistory_Create(IClassFactory*,IUnknown*,REFIID,void**) DECLSPEC_HIDDEN;
HRESULT WINAPI InternetExplorer_Create(IClassFactory*,IUnknown*,REFIID,void**) DECLSPEC_HIDDEN;
HRESULT WINAPI InternetShortcut_Create(IClassFactory*,IUnknown*,REFIID,void**) DECLSPEC_HIDDEN;
HRESULT WINAPI TaskbarList_Create(IClassFactory*,IUnknown*,REFIID,void**) DECLSPEC_HIDDEN;
HRESULT WINAPI WebBrowser_Create(IClassFactory*,IUnknown*,REFIID,void**) DECLSPEC_HIDDEN;
HRESULT WINAPI WebBrowserV1_Create(IClassFactory*,IUnknown*,REFIID,void**) DECLSPEC_HIDDEN;

const char *debugstr_variant(const VARIANT*) DECLSPEC_HIDDEN;

extern LONG module_ref DECLSPEC_HIDDEN;
extern HINSTANCE ieframe_instance DECLSPEC_HIDDEN;

static inline void lock_module(void) {
    InterlockedIncrement(&module_ref);
}

static inline void unlock_module(void) {
    InterlockedDecrement(&module_ref);
}

static inline void *heap_alloc(size_t len)
{
    return HeapAlloc(GetProcessHeap(), 0, len);
}

static inline void *heap_alloc_zero(size_t len)
{
    return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
}

static inline void *heap_realloc(void *mem, size_t len)
{
    return HeapReAlloc(GetProcessHeap(), 0, mem, len);
}

static inline BOOL heap_free(void *mem)
{
    return HeapFree(GetProcessHeap(), 0, mem);
}

static inline LPWSTR heap_strdupW(LPCWSTR str)
{
    LPWSTR ret = NULL;

    if(str) {
        DWORD size;

        size = (strlenW(str)+1)*sizeof(WCHAR);
        ret = heap_alloc(size);
        if(ret)
            memcpy(ret, str, size);
    }

    return ret;
}

static inline LPWSTR co_strdupW(LPCWSTR str)
{
    WCHAR *ret = CoTaskMemAlloc((strlenW(str) + 1)*sizeof(WCHAR));
    if (ret)
        lstrcpyW(ret, str);
    return ret;
}

static inline LPWSTR co_strdupAtoW(LPCSTR str)
{
    INT len;
    WCHAR *ret;
    len = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0);
    ret = CoTaskMemAlloc(len*sizeof(WCHAR));
    if (ret)
        MultiByteToWideChar(CP_ACP, 0, str, -1, ret, len);
    return ret;
}

static inline LPSTR co_strdupWtoA(LPCWSTR str)
{
    INT len;
    CHAR *ret;
    len = WideCharToMultiByte(CP_ACP, 0, str, -1, NULL, 0, 0, 0);
    ret = CoTaskMemAlloc(len);
    if (ret)
        WideCharToMultiByte(CP_ACP, 0, str, -1, ret, len, 0, 0);
    return ret;
}