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webview_win_old.h
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/*
* MIT License
*
* Copyright (c) 2017 Serge Zaitsev
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef WEBVIEW_H
#define WEBVIEW_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef WEBVIEW_STATIC
#define WEBVIEW_API static
#else
#define WEBVIEW_API extern
#endif
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#if defined(WEBVIEW_WINAPI)
#define CINTERFACE
#include <windows.h>
#include <commctrl.h>
#include <exdisp.h>
#include <mshtmhst.h>
#include <mshtml.h>
#include <shobjidl.h>
#include <stdio.h>
struct webview_priv {
HWND hwnd;
IOleObject **browser;
BOOL is_fullscreen;
DWORD saved_style;
DWORD saved_ex_style;
RECT saved_rect;
};
#else
#error "Define one of: WEBVIEW_GTK, WEBVIEW_COCOA or WEBVIEW_WINAPI"
#endif
struct webview;
typedef void (*webview_external_invoke_cb_t)(struct webview *w,
const char *arg);
struct webview {
const char *url;
const char *title;
int width;
int height;
int resizable;
int debug;
webview_external_invoke_cb_t external_invoke_cb;
struct webview_priv priv;
void *userdata;
};
enum webview_dialog_type {
WEBVIEW_DIALOG_TYPE_OPEN = 0,
WEBVIEW_DIALOG_TYPE_SAVE = 1,
WEBVIEW_DIALOG_TYPE_ALERT = 2
};
#define WEBVIEW_DIALOG_FLAG_FILE (0 << 0)
#define WEBVIEW_DIALOG_FLAG_DIRECTORY (1 << 0)
#define WEBVIEW_DIALOG_FLAG_INFO (1 << 1)
#define WEBVIEW_DIALOG_FLAG_WARNING (2 << 1)
#define WEBVIEW_DIALOG_FLAG_ERROR (3 << 1)
#define WEBVIEW_DIALOG_FLAG_ALERT_MASK (3 << 1)
typedef void (*webview_dispatch_fn)(struct webview *w, void *arg);
struct webview_dispatch_arg {
webview_dispatch_fn fn;
struct webview *w;
void *arg;
};
#define DEFAULT_URL \
"data:text/" \
"html,%3C%21DOCTYPE%20html%3E%0A%3Chtml%20lang=%22en%22%3E%0A%3Chead%3E%" \
"3Cmeta%20charset=%22utf-8%22%3E%3Cmeta%20http-equiv=%22X-UA-Compatible%22%" \
"20content=%22IE=edge%22%3E%3C%2Fhead%3E%0A%3Cbody%3E%3Cdiv%20id=%22app%22%" \
"3E%3C%2Fdiv%3E%3Cscript%20type=%22text%2Fjavascript%22%3E%3C%2Fscript%3E%" \
"3C%2Fbody%3E%0A%3C%2Fhtml%3E"
#define CSS_INJECT_FUNCTION \
"(function(e){var " \
"t=document.createElement('style'),d=document.head||document." \
"getElementsByTagName('head')[0];t.setAttribute('type','text/" \
"css'),t.styleSheet?t.styleSheet.cssText=e:t.appendChild(document." \
"createTextNode(e)),d.appendChild(t)})"
static const char *webview_check_url(const char *url) {
if (url == NULL || strlen(url) == 0) {
return DEFAULT_URL;
}
return url;
}
WEBVIEW_API int webview(const char *title, const char *url, int width,
int height, int resizable);
WEBVIEW_API int webview_init(struct webview *w);
WEBVIEW_API int webview_loop(struct webview *w, int blocking);
WEBVIEW_API int webview_eval(struct webview *w, const char *js);
WEBVIEW_API int webview_inject_css(struct webview *w, const char *css);
WEBVIEW_API void webview_set_title(struct webview *w, const char *title);
WEBVIEW_API void webview_set_fullscreen(struct webview *w, int fullscreen);
WEBVIEW_API void webview_set_color(struct webview *w, uint8_t r, uint8_t g,
uint8_t b, uint8_t a);
WEBVIEW_API void webview_dialog(struct webview *w,
enum webview_dialog_type dlgtype, int flags,
const char *title, const char *arg,
char *result, size_t resultsz);
WEBVIEW_API void webview_dispatch(struct webview *w, webview_dispatch_fn fn,
void *arg);
WEBVIEW_API void webview_terminate(struct webview *w);
WEBVIEW_API void webview_exit(struct webview *w);
WEBVIEW_API void webview_debug(const char *format, ...);
WEBVIEW_API void webview_print_log(const char *s);
#ifdef WEBVIEW_IMPLEMENTATION
#undef WEBVIEW_IMPLEMENTATION
WEBVIEW_API int webview(const char *title, const char *url, int width,
int height, int resizable) {
struct webview webview;
memset(&webview, 0, sizeof(webview));
webview.title = title;
webview.url = url;
webview.width = width;
webview.height = height;
webview.resizable = resizable;
int r = webview_init(&webview);
if (r != 0) {
return r;
}
while (webview_loop(&webview, 1) == 0) {
}
webview_exit(&webview);
return 0;
}
WEBVIEW_API void webview_debug(const char *format, ...) {
char buf[4096];
va_list ap;
va_start(ap, format);
vsnprintf(buf, sizeof(buf), format, ap);
webview_print_log(buf);
va_end(ap);
}
static int webview_js_encode(const char *s, char *esc, size_t n) {
int r = 1; /* At least one byte for trailing zero */
for (; *s; s++) {
const unsigned char c = *s;
if (c >= 0x20 && c < 0x80 && strchr("<>\\'\"", c) == NULL) {
if (n > 0) {
*esc++ = c;
n--;
}
r++;
} else {
if (n > 0) {
snprintf(esc, n, "\\x%02x", (int)c);
esc += 4;
n -= 4;
}
r += 4;
}
}
return r;
}
WEBVIEW_API int webview_inject_css(struct webview *w, const char *css) {
int n = webview_js_encode(css, NULL, 0);
char *esc = (char *)calloc(1, sizeof(CSS_INJECT_FUNCTION) + n + 4);
if (esc == NULL) {
return -1;
}
char *js = (char *)calloc(1, n);
webview_js_encode(css, js, n);
snprintf(esc, sizeof(CSS_INJECT_FUNCTION) + n + 4, "%s(\"%s\")",
CSS_INJECT_FUNCTION, js);
int r = webview_eval(w, esc);
free(js);
free(esc);
return r;
}
#if defined(WEBVIEW_WINAPI)
#pragma comment(lib, "user32.lib")
#pragma comment(lib, "ole32.lib")
#pragma comment(lib, "oleaut32.lib")
#define WM_WEBVIEW_DISPATCH (WM_APP + 1)
typedef struct {
IOleInPlaceFrame frame;
HWND window;
} _IOleInPlaceFrameEx;
typedef struct {
IOleInPlaceSite inplace;
_IOleInPlaceFrameEx frame;
} _IOleInPlaceSiteEx;
typedef struct {
IDocHostUIHandler ui;
} _IDocHostUIHandlerEx;
typedef struct {
IInternetSecurityManager mgr;
} _IInternetSecurityManagerEx;
typedef struct {
IServiceProvider provider;
_IInternetSecurityManagerEx mgr;
} _IServiceProviderEx;
typedef struct {
IOleClientSite client;
_IOleInPlaceSiteEx inplace;
_IDocHostUIHandlerEx ui;
IDispatch external;
_IServiceProviderEx provider;
} _IOleClientSiteEx;
#ifdef __cplusplus
#define iid_ref(x) &(x)
#define iid_unref(x) *(x)
#else
#define iid_ref(x) (x)
#define iid_unref(x) (x)
#endif
static inline WCHAR *webview_to_utf16(const char *s) {
DWORD size = MultiByteToWideChar(CP_UTF8, 0, s, -1, 0, 0);
WCHAR *ws = (WCHAR *)GlobalAlloc(GMEM_FIXED, sizeof(WCHAR) * size);
if (ws == NULL) {
return NULL;
}
MultiByteToWideChar(CP_UTF8, 0, s, -1, ws, size);
return ws;
}
static inline char *webview_from_utf16(WCHAR *ws) {
int n = WideCharToMultiByte(CP_UTF8, 0, ws, -1, NULL, 0, NULL, NULL);
char *s = (char *)GlobalAlloc(GMEM_FIXED, n);
if (s == NULL) {
return NULL;
}
WideCharToMultiByte(CP_UTF8, 0, ws, -1, s, n, NULL, NULL);
return s;
}
static int iid_eq(REFIID a, const IID *b) {
return memcmp((const void *)iid_ref(a), (const void *)b, sizeof(GUID)) == 0;
}
static HRESULT STDMETHODCALLTYPE JS_QueryInterface(IDispatch FAR *This,
REFIID riid,
LPVOID FAR *ppvObj) {
if (iid_eq(riid, &IID_IDispatch)) {
*ppvObj = This;
return S_OK;
}
*ppvObj = 0;
return E_NOINTERFACE;
}
static ULONG STDMETHODCALLTYPE JS_AddRef(IDispatch FAR *This) { return 1; }
static ULONG STDMETHODCALLTYPE JS_Release(IDispatch FAR *This) { return 1; }
static HRESULT STDMETHODCALLTYPE JS_GetTypeInfoCount(IDispatch FAR *This,
UINT *pctinfo) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE JS_GetTypeInfo(IDispatch FAR *This,
UINT iTInfo, LCID lcid,
ITypeInfo **ppTInfo) {
return S_OK;
}
#define WEBVIEW_JS_INVOKE_ID 0x1000
static HRESULT STDMETHODCALLTYPE JS_GetIDsOfNames(IDispatch FAR *This,
REFIID riid,
LPOLESTR *rgszNames,
UINT cNames, LCID lcid,
DISPID *rgDispId) {
if (cNames != 1) {
return S_FALSE;
}
if (wcscmp(rgszNames[0], L"invoke") == 0) {
rgDispId[0] = WEBVIEW_JS_INVOKE_ID;
return S_OK;
}
return S_FALSE;
}
static HRESULT STDMETHODCALLTYPE
JS_Invoke(IDispatch FAR *This, DISPID dispIdMember, REFIID riid, LCID lcid,
WORD wFlags, DISPPARAMS *pDispParams, VARIANT *pVarResult,
EXCEPINFO *pExcepInfo, UINT *puArgErr) {
size_t offset = (size_t) & ((_IOleClientSiteEx *)NULL)->external;
_IOleClientSiteEx *ex = (_IOleClientSiteEx *)((char *)(This)-offset);
struct webview *w = (struct webview *)GetWindowLongPtr(
ex->inplace.frame.window, GWLP_USERDATA);
if (pDispParams->cArgs == 1 && pDispParams->rgvarg[0].vt == VT_BSTR) {
BSTR bstr = pDispParams->rgvarg[0].bstrVal;
char *s = webview_from_utf16(bstr);
if (s != NULL) {
if (dispIdMember == WEBVIEW_JS_INVOKE_ID) {
if (w->external_invoke_cb != NULL) {
w->external_invoke_cb(w, s);
}
} else {
return S_FALSE;
}
GlobalFree(s);
}
}
return S_OK;
}
static IDispatchVtbl ExternalDispatchTable = {
JS_QueryInterface, JS_AddRef, JS_Release, JS_GetTypeInfoCount,
JS_GetTypeInfo, JS_GetIDsOfNames, JS_Invoke};
static ULONG STDMETHODCALLTYPE Site_AddRef(IOleClientSite FAR *This) {
return 1;
}
static ULONG STDMETHODCALLTYPE Site_Release(IOleClientSite FAR *This) {
return 1;
}
static HRESULT STDMETHODCALLTYPE Site_SaveObject(IOleClientSite FAR *This) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE Site_GetMoniker(IOleClientSite FAR *This,
DWORD dwAssign,
DWORD dwWhichMoniker,
IMoniker **ppmk) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE
Site_GetContainer(IOleClientSite FAR *This, LPOLECONTAINER FAR *ppContainer) {
*ppContainer = 0;
return E_NOINTERFACE;
}
static HRESULT STDMETHODCALLTYPE Site_ShowObject(IOleClientSite FAR *This) {
return NOERROR;
}
static HRESULT STDMETHODCALLTYPE Site_OnShowWindow(IOleClientSite FAR *This,
BOOL fShow) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE
Site_RequestNewObjectLayout(IOleClientSite FAR *This) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE Site_QueryInterface(IOleClientSite FAR *This,
REFIID riid,
void **ppvObject) {
if (iid_eq(riid, &IID_IUnknown) || iid_eq(riid, &IID_IOleClientSite)) {
*ppvObject = &((_IOleClientSiteEx *)This)->client;
} else if (iid_eq(riid, &IID_IOleInPlaceSite)) {
*ppvObject = &((_IOleClientSiteEx *)This)->inplace;
} else if (iid_eq(riid, &IID_IDocHostUIHandler)) {
*ppvObject = &((_IOleClientSiteEx *)This)->ui;
} else if (iid_eq(riid, &IID_IServiceProvider)) {
*ppvObject = &((_IOleClientSiteEx *)This)->provider;
} else {
*ppvObject = 0;
return (E_NOINTERFACE);
}
return S_OK;
}
static HRESULT STDMETHODCALLTYPE InPlace_QueryInterface(
IOleInPlaceSite FAR *This, REFIID riid, LPVOID FAR *ppvObj) {
return (Site_QueryInterface(
(IOleClientSite *)((char *)This - sizeof(IOleClientSite)), riid, ppvObj));
}
static ULONG STDMETHODCALLTYPE InPlace_AddRef(IOleInPlaceSite FAR *This) {
return 1;
}
static ULONG STDMETHODCALLTYPE InPlace_Release(IOleInPlaceSite FAR *This) {
return 1;
}
static HRESULT STDMETHODCALLTYPE InPlace_GetWindow(IOleInPlaceSite FAR *This,
HWND FAR *lphwnd) {
*lphwnd = ((_IOleInPlaceSiteEx FAR *)This)->frame.window;
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
InPlace_ContextSensitiveHelp(IOleInPlaceSite FAR *This, BOOL fEnterMode) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE
InPlace_CanInPlaceActivate(IOleInPlaceSite FAR *This) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
InPlace_OnInPlaceActivate(IOleInPlaceSite FAR *This) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
InPlace_OnUIActivate(IOleInPlaceSite FAR *This) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE InPlace_GetWindowContext(
IOleInPlaceSite FAR *This, LPOLEINPLACEFRAME FAR *lplpFrame,
LPOLEINPLACEUIWINDOW FAR *lplpDoc, LPRECT lprcPosRect, LPRECT lprcClipRect,
LPOLEINPLACEFRAMEINFO lpFrameInfo) {
*lplpFrame = (LPOLEINPLACEFRAME) & ((_IOleInPlaceSiteEx *)This)->frame;
*lplpDoc = 0;
lpFrameInfo->fMDIApp = FALSE;
lpFrameInfo->hwndFrame = ((_IOleInPlaceFrameEx *)*lplpFrame)->window;
lpFrameInfo->haccel = 0;
lpFrameInfo->cAccelEntries = 0;
return S_OK;
}
static HRESULT STDMETHODCALLTYPE InPlace_Scroll(IOleInPlaceSite FAR *This,
SIZE scrollExtent) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE
InPlace_OnUIDeactivate(IOleInPlaceSite FAR *This, BOOL fUndoable) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
InPlace_OnInPlaceDeactivate(IOleInPlaceSite FAR *This) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
InPlace_DiscardUndoState(IOleInPlaceSite FAR *This) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE
InPlace_DeactivateAndUndo(IOleInPlaceSite FAR *This) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE
InPlace_OnPosRectChange(IOleInPlaceSite FAR *This, LPCRECT lprcPosRect) {
IOleObject *browserObject;
IOleInPlaceObject *inplace;
browserObject = *((IOleObject **)((char *)This - sizeof(IOleObject *) -
sizeof(IOleClientSite)));
if (!browserObject->lpVtbl->QueryInterface(browserObject,
iid_unref(&IID_IOleInPlaceObject),
(void **)&inplace)) {
inplace->lpVtbl->SetObjectRects(inplace, lprcPosRect, lprcPosRect);
inplace->lpVtbl->Release(inplace);
}
return S_OK;
}
static HRESULT STDMETHODCALLTYPE Frame_QueryInterface(
IOleInPlaceFrame FAR *This, REFIID riid, LPVOID FAR *ppvObj) {
return E_NOTIMPL;
}
static ULONG STDMETHODCALLTYPE Frame_AddRef(IOleInPlaceFrame FAR *This) {
return 1;
}
static ULONG STDMETHODCALLTYPE Frame_Release(IOleInPlaceFrame FAR *This) {
return 1;
}
static HRESULT STDMETHODCALLTYPE Frame_GetWindow(IOleInPlaceFrame FAR *This,
HWND FAR *lphwnd) {
*lphwnd = ((_IOleInPlaceFrameEx *)This)->window;
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
Frame_ContextSensitiveHelp(IOleInPlaceFrame FAR *This, BOOL fEnterMode) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE Frame_GetBorder(IOleInPlaceFrame FAR *This,
LPRECT lprectBorder) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE Frame_RequestBorderSpace(
IOleInPlaceFrame FAR *This, LPCBORDERWIDTHS pborderwidths) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE Frame_SetBorderSpace(
IOleInPlaceFrame FAR *This, LPCBORDERWIDTHS pborderwidths) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE Frame_SetActiveObject(
IOleInPlaceFrame FAR *This, IOleInPlaceActiveObject *pActiveObject,
LPCOLESTR pszObjName) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
Frame_InsertMenus(IOleInPlaceFrame FAR *This, HMENU hmenuShared,
LPOLEMENUGROUPWIDTHS lpMenuWidths) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE Frame_SetMenu(IOleInPlaceFrame FAR *This,
HMENU hmenuShared,
HOLEMENU holemenu,
HWND hwndActiveObject) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE Frame_RemoveMenus(IOleInPlaceFrame FAR *This,
HMENU hmenuShared) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE Frame_SetStatusText(IOleInPlaceFrame FAR *This,
LPCOLESTR pszStatusText) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
Frame_EnableModeless(IOleInPlaceFrame FAR *This, BOOL fEnable) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
Frame_TranslateAccelerator(IOleInPlaceFrame FAR *This, LPMSG lpmsg, WORD wID) {
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE UI_QueryInterface(IDocHostUIHandler FAR *This,
REFIID riid,
LPVOID FAR *ppvObj) {
return (Site_QueryInterface((IOleClientSite *)((char *)This -
sizeof(IOleClientSite) -
sizeof(_IOleInPlaceSiteEx)),
riid, ppvObj));
}
static ULONG STDMETHODCALLTYPE UI_AddRef(IDocHostUIHandler FAR *This) {
return 1;
}
static ULONG STDMETHODCALLTYPE UI_Release(IDocHostUIHandler FAR *This) {
return 1;
}
static HRESULT STDMETHODCALLTYPE UI_ShowContextMenu(
IDocHostUIHandler FAR *This, DWORD dwID, POINT __RPC_FAR *ppt,
IUnknown __RPC_FAR *pcmdtReserved, IDispatch __RPC_FAR *pdispReserved) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
UI_GetHostInfo(IDocHostUIHandler FAR *This, DOCHOSTUIINFO __RPC_FAR *pInfo) {
pInfo->cbSize = sizeof(DOCHOSTUIINFO);
pInfo->dwFlags = DOCHOSTUIFLAG_NO3DBORDER;
pInfo->dwDoubleClick = DOCHOSTUIDBLCLK_DEFAULT;
return S_OK;
}
static HRESULT STDMETHODCALLTYPE UI_ShowUI(
IDocHostUIHandler FAR *This, DWORD dwID,
IOleInPlaceActiveObject __RPC_FAR *pActiveObject,
IOleCommandTarget __RPC_FAR *pCommandTarget,
IOleInPlaceFrame __RPC_FAR *pFrame, IOleInPlaceUIWindow __RPC_FAR *pDoc) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE UI_HideUI(IDocHostUIHandler FAR *This) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE UI_UpdateUI(IDocHostUIHandler FAR *This) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE UI_EnableModeless(IDocHostUIHandler FAR *This,
BOOL fEnable) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
UI_OnDocWindowActivate(IDocHostUIHandler FAR *This, BOOL fActivate) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
UI_OnFrameWindowActivate(IDocHostUIHandler FAR *This, BOOL fActivate) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
UI_ResizeBorder(IDocHostUIHandler FAR *This, LPCRECT prcBorder,
IOleInPlaceUIWindow __RPC_FAR *pUIWindow, BOOL fRameWindow) {
return S_OK;
}
static HRESULT STDMETHODCALLTYPE
UI_TranslateAccelerator(IDocHostUIHandler FAR *This, LPMSG lpMsg,
const GUID __RPC_FAR *pguidCmdGroup, DWORD nCmdID) {
return S_FALSE;
}
static HRESULT STDMETHODCALLTYPE UI_GetOptionKeyPath(
IDocHostUIHandler FAR *This, LPOLESTR __RPC_FAR *pchKey, DWORD dw) {
return S_FALSE;
}
static HRESULT STDMETHODCALLTYPE UI_GetDropTarget(
IDocHostUIHandler FAR *This, IDropTarget __RPC_FAR *pDropTarget,
IDropTarget __RPC_FAR *__RPC_FAR *ppDropTarget) {
return S_FALSE;
}
static HRESULT STDMETHODCALLTYPE UI_GetExternal(
IDocHostUIHandler FAR *This, IDispatch __RPC_FAR *__RPC_FAR *ppDispatch) {
*ppDispatch = (IDispatch *)(This + 1);
return S_OK;
}
static HRESULT STDMETHODCALLTYPE UI_TranslateUrl(
IDocHostUIHandler FAR *This, DWORD dwTranslate, OLECHAR __RPC_FAR *pchURLIn,
OLECHAR __RPC_FAR *__RPC_FAR *ppchURLOut) {
*ppchURLOut = 0;
return S_FALSE;
}
static HRESULT STDMETHODCALLTYPE
UI_FilterDataObject(IDocHostUIHandler FAR *This, IDataObject __RPC_FAR *pDO,
IDataObject __RPC_FAR *__RPC_FAR *ppDORet) {
*ppDORet = 0;
return S_FALSE;
}
static const TCHAR *classname = "WebView";
static const SAFEARRAYBOUND ArrayBound = {1, 0};
static IOleClientSiteVtbl MyIOleClientSiteTable = {
Site_QueryInterface, Site_AddRef, Site_Release,
Site_SaveObject, Site_GetMoniker, Site_GetContainer,
Site_ShowObject, Site_OnShowWindow, Site_RequestNewObjectLayout};
static IOleInPlaceSiteVtbl MyIOleInPlaceSiteTable = {
InPlace_QueryInterface,
InPlace_AddRef,
InPlace_Release,
InPlace_GetWindow,
InPlace_ContextSensitiveHelp,
InPlace_CanInPlaceActivate,
InPlace_OnInPlaceActivate,
InPlace_OnUIActivate,
InPlace_GetWindowContext,
InPlace_Scroll,
InPlace_OnUIDeactivate,
InPlace_OnInPlaceDeactivate,
InPlace_DiscardUndoState,
InPlace_DeactivateAndUndo,
InPlace_OnPosRectChange};
static IOleInPlaceFrameVtbl MyIOleInPlaceFrameTable = {
Frame_QueryInterface,
Frame_AddRef,
Frame_Release,
Frame_GetWindow,
Frame_ContextSensitiveHelp,
Frame_GetBorder,
Frame_RequestBorderSpace,
Frame_SetBorderSpace,
Frame_SetActiveObject,
Frame_InsertMenus,
Frame_SetMenu,
Frame_RemoveMenus,
Frame_SetStatusText,
Frame_EnableModeless,
Frame_TranslateAccelerator};
static IDocHostUIHandlerVtbl MyIDocHostUIHandlerTable = {
UI_QueryInterface,
UI_AddRef,
UI_Release,
UI_ShowContextMenu,
UI_GetHostInfo,
UI_ShowUI,
UI_HideUI,
UI_UpdateUI,
UI_EnableModeless,
UI_OnDocWindowActivate,
UI_OnFrameWindowActivate,
UI_ResizeBorder,
UI_TranslateAccelerator,
UI_GetOptionKeyPath,
UI_GetDropTarget,
UI_GetExternal,
UI_TranslateUrl,
UI_FilterDataObject};
static HRESULT STDMETHODCALLTYPE IS_QueryInterface(IInternetSecurityManager FAR *This, REFIID riid, void **ppvObject) {
return E_NOTIMPL;
}
static ULONG STDMETHODCALLTYPE IS_AddRef(IInternetSecurityManager FAR *This) { return 1; }
static ULONG STDMETHODCALLTYPE IS_Release(IInternetSecurityManager FAR *This) { return 1; }
static HRESULT STDMETHODCALLTYPE IS_SetSecuritySite(IInternetSecurityManager FAR *This, IInternetSecurityMgrSite *pSited) {
return INET_E_DEFAULT_ACTION;
}
static HRESULT STDMETHODCALLTYPE IS_GetSecuritySite(IInternetSecurityManager FAR *This, IInternetSecurityMgrSite **ppSite) {
return INET_E_DEFAULT_ACTION;
}
static HRESULT STDMETHODCALLTYPE IS_MapUrlToZone(IInternetSecurityManager FAR *This, LPCWSTR pwszUrl, DWORD *pdwZone, DWORD dwFlags) {
*pdwZone = URLZONE_LOCAL_MACHINE;
return S_OK;
}
static HRESULT STDMETHODCALLTYPE IS_GetSecurityId(IInternetSecurityManager FAR *This, LPCWSTR pwszUrl, BYTE *pbSecurityId, DWORD *pcbSecurityId, DWORD_PTR dwReserved) {
return INET_E_DEFAULT_ACTION;
}
static HRESULT STDMETHODCALLTYPE IS_ProcessUrlAction(IInternetSecurityManager FAR *This, LPCWSTR pwszUrl, DWORD dwAction, BYTE *pPolicy, DWORD cbPolicy, BYTE *pContext, DWORD cbContext, DWORD dwFlags, DWORD dwReserved) {
return INET_E_DEFAULT_ACTION;
}
static HRESULT STDMETHODCALLTYPE IS_QueryCustomPolicy(IInternetSecurityManager FAR *This, LPCWSTR pwszUrl, REFGUID guidKey, BYTE **ppPolicy, DWORD *pcbPolicy, BYTE *pContext, DWORD cbContext, DWORD dwReserved) {
return INET_E_DEFAULT_ACTION;
}
static HRESULT STDMETHODCALLTYPE IS_SetZoneMapping(IInternetSecurityManager FAR *This, DWORD dwZone, LPCWSTR lpszPattern, DWORD dwFlags) {
return INET_E_DEFAULT_ACTION;
}
static HRESULT STDMETHODCALLTYPE IS_GetZoneMappings(IInternetSecurityManager FAR *This, DWORD dwZone, IEnumString **ppenumString, DWORD dwFlags) {
return INET_E_DEFAULT_ACTION;
}
static IInternetSecurityManagerVtbl MyInternetSecurityManagerTable = {IS_QueryInterface, IS_AddRef, IS_Release, IS_SetSecuritySite, IS_GetSecuritySite, IS_MapUrlToZone, IS_GetSecurityId, IS_ProcessUrlAction, IS_QueryCustomPolicy, IS_SetZoneMapping, IS_GetZoneMappings};
static HRESULT STDMETHODCALLTYPE SP_QueryInterface(IServiceProvider FAR *This, REFIID riid, void **ppvObject) {
return (Site_QueryInterface(
(IOleClientSite *)((char *)This - sizeof(IOleClientSite) - sizeof(_IOleInPlaceSiteEx) - sizeof(_IDocHostUIHandlerEx) - sizeof(IDispatch)), riid, ppvObject));
}
static ULONG STDMETHODCALLTYPE SP_AddRef(IServiceProvider FAR *This) { return 1; }
static ULONG STDMETHODCALLTYPE SP_Release(IServiceProvider FAR *This) { return 1; }
static HRESULT STDMETHODCALLTYPE SP_QueryService(IServiceProvider FAR *This, REFGUID siid, REFIID riid, void **ppvObject) {
if (iid_eq(siid, &IID_IInternetSecurityManager) && iid_eq(riid, &IID_IInternetSecurityManager)) {
*ppvObject = &((_IServiceProviderEx *)This)->mgr;
} else {
*ppvObject = 0;
return (E_NOINTERFACE);
}
return S_OK;
}
static IServiceProviderVtbl MyServiceProviderTable = {SP_QueryInterface, SP_AddRef, SP_Release, SP_QueryService};
static void UnEmbedBrowserObject(struct webview *w) {
if (w->priv.browser != NULL) {
(*w->priv.browser)->lpVtbl->Close(*w->priv.browser, OLECLOSE_NOSAVE);
(*w->priv.browser)->lpVtbl->Release(*w->priv.browser);
GlobalFree(w->priv.browser);
w->priv.browser = NULL;
}
}
static int EmbedBrowserObject(struct webview *w) {
RECT rect;
IWebBrowser2 *webBrowser2 = NULL;
LPCLASSFACTORY pClassFactory = NULL;
_IOleClientSiteEx *_iOleClientSiteEx = NULL;
IOleObject **browser = (IOleObject **)GlobalAlloc(
GMEM_FIXED, sizeof(IOleObject *) + sizeof(_IOleClientSiteEx));
if (browser == NULL) {
goto error;
}
w->priv.browser = browser;
_iOleClientSiteEx = (_IOleClientSiteEx *)(browser + 1);
_iOleClientSiteEx->client.lpVtbl = &MyIOleClientSiteTable;
_iOleClientSiteEx->inplace.inplace.lpVtbl = &MyIOleInPlaceSiteTable;
_iOleClientSiteEx->inplace.frame.frame.lpVtbl = &MyIOleInPlaceFrameTable;
_iOleClientSiteEx->inplace.frame.window = w->priv.hwnd;
_iOleClientSiteEx->ui.ui.lpVtbl = &MyIDocHostUIHandlerTable;
_iOleClientSiteEx->external.lpVtbl = &ExternalDispatchTable;
_iOleClientSiteEx->provider.provider.lpVtbl = &MyServiceProviderTable;
_iOleClientSiteEx->provider.mgr.mgr.lpVtbl = &MyInternetSecurityManagerTable;
if (CoGetClassObject(iid_unref(&CLSID_WebBrowser),
CLSCTX_INPROC_SERVER | CLSCTX_INPROC_HANDLER, NULL,
iid_unref(&IID_IClassFactory),
(void **)&pClassFactory) != S_OK) {
goto error;
}
if (pClassFactory == NULL) {
goto error;
}
if (pClassFactory->lpVtbl->CreateInstance(pClassFactory, 0,
iid_unref(&IID_IOleObject),
(void **)browser) != S_OK) {
goto error;
}
pClassFactory->lpVtbl->Release(pClassFactory);
if ((*browser)->lpVtbl->SetClientSite(
*browser, (IOleClientSite *)_iOleClientSiteEx) != S_OK) {
goto error;
}
(*browser)->lpVtbl->SetHostNames(*browser, L"My Host Name", 0);
if (OleSetContainedObject((struct IUnknown *)(*browser), TRUE) != S_OK) {
goto error;
}
GetClientRect(w->priv.hwnd, &rect);
if ((*browser)->lpVtbl->DoVerb((*browser), OLEIVERB_SHOW, NULL,
(IOleClientSite *)_iOleClientSiteEx, -1,
w->priv.hwnd, &rect) != S_OK) {
goto error;
}
if ((*browser)->lpVtbl->QueryInterface((*browser),
iid_unref(&IID_IWebBrowser2),
(void **)&webBrowser2) != S_OK) {
goto error;
}
webBrowser2->lpVtbl->put_Left(webBrowser2, 0);
webBrowser2->lpVtbl->put_Top(webBrowser2, 0);
webBrowser2->lpVtbl->put_Width(webBrowser2, rect.right);
webBrowser2->lpVtbl->put_Height(webBrowser2, rect.bottom);
webBrowser2->lpVtbl->Release(webBrowser2);
return 0;
error:
UnEmbedBrowserObject(w);
if (pClassFactory != NULL) {
pClassFactory->lpVtbl->Release(pClassFactory);
}
if (browser != NULL) {
GlobalFree(browser);
}
return -1;
}
#define WEBVIEW_DATA_URL_PREFIX "data:text/html,"
static int DisplayHTMLPage(struct webview *w) {
IWebBrowser2 *webBrowser2;
VARIANT myURL;
LPDISPATCH lpDispatch;
IHTMLDocument2 *htmlDoc2;
BSTR bstr;
IOleObject *browserObject;
SAFEARRAY *sfArray;
VARIANT *pVar;
browserObject = *w->priv.browser;
int isDataURL = 0;
const char *webview_url = webview_check_url(w->url);
if (!browserObject->lpVtbl->QueryInterface(
browserObject, iid_unref(&IID_IWebBrowser2), (void **)&webBrowser2)) {
LPCSTR webPageName;
isDataURL = (strncmp(webview_url, WEBVIEW_DATA_URL_PREFIX,
strlen(WEBVIEW_DATA_URL_PREFIX)) == 0);
#ifdef WEBVIEW_SUPRESS_ERRORS
webBrowser2->lpVtbl->put_Silent(webBrowser2, true);
#endif
if (isDataURL) {
webPageName = "about:blank";
} else {
webPageName = (LPCSTR)webview_url;
}
VariantInit(&myURL);
myURL.vt = VT_BSTR;
#ifndef UNICODE
{
wchar_t *buffer = webview_to_utf16(webPageName);
if (buffer == NULL) {
goto badalloc;
}
myURL.bstrVal = SysAllocString(buffer);
GlobalFree(buffer);
}
#else
myURL.bstrVal = SysAllocString(webPageName);
#endif
if (!myURL.bstrVal) {
badalloc:
webBrowser2->lpVtbl->Release(webBrowser2);
return (-6);
}
webBrowser2->lpVtbl->Navigate2(webBrowser2, &myURL, 0, 0, 0, 0);
VariantClear(&myURL);
if (!isDataURL) {
return 0;
}
char *url = (char *)calloc(1, strlen(webview_url) + 1);
char *q = url;
for (const char *p = webview_url + strlen(WEBVIEW_DATA_URL_PREFIX); *q = *p;
p++, q++) {
if (*q == '%' && *(p + 1) && *(p + 2)) {
sscanf(p + 1, "%02x", q);
p = p + 2;
}
}
if (webBrowser2->lpVtbl->get_Document(webBrowser2, &lpDispatch) == S_OK) {
if (lpDispatch->lpVtbl->QueryInterface(lpDispatch,
iid_unref(&IID_IHTMLDocument2),
(void **)&htmlDoc2) == S_OK) {
if ((sfArray = SafeArrayCreate(VT_VARIANT, 1,
(SAFEARRAYBOUND *)&ArrayBound))) {
if (!SafeArrayAccessData(sfArray, (void **)&pVar)) {
pVar->vt = VT_BSTR;
#ifndef UNICODE
{
wchar_t *buffer = webview_to_utf16(url);
if (buffer == NULL) {
goto release;
}
bstr = SysAllocString(buffer);
GlobalFree(buffer);
}
#else
bstr = SysAllocString(string);
#endif
if ((pVar->bstrVal = bstr)) {
htmlDoc2->lpVtbl->write(htmlDoc2, sfArray);
htmlDoc2->lpVtbl->close(htmlDoc2);
}
}
SafeArrayDestroy(sfArray);
}
release:
free(url);
htmlDoc2->lpVtbl->Release(htmlDoc2);
}
lpDispatch->lpVtbl->Release(lpDispatch);
}
webBrowser2->lpVtbl->Release(webBrowser2);
return (0);
}
return (-5);
}
static LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam,
LPARAM lParam) {
struct webview *w = (struct webview *)GetWindowLongPtr(hwnd, GWLP_USERDATA);
switch (uMsg) {
case WM_CREATE:
w = (struct webview *)((CREATESTRUCT *)lParam)->lpCreateParams;
w->priv.hwnd = hwnd;
return EmbedBrowserObject(w);
case WM_DESTROY:
UnEmbedBrowserObject(w);
PostQuitMessage(0);
return TRUE;
case WM_SIZE: {
IWebBrowser2 *webBrowser2;
IOleObject *browser = *w->priv.browser;
if (browser->lpVtbl->QueryInterface(browser, iid_unref(&IID_IWebBrowser2),
(void **)&webBrowser2) == S_OK) {
RECT rect;
GetClientRect(hwnd, &rect);
webBrowser2->lpVtbl->put_Width(webBrowser2, rect.right);
webBrowser2->lpVtbl->put_Height(webBrowser2, rect.bottom);
}
return TRUE;
}
case WM_WEBVIEW_DISPATCH: {
webview_dispatch_fn f = (webview_dispatch_fn)wParam;
void *arg = (void *)lParam;
(*f)(w, arg);
return TRUE;
}
}
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
#define WEBVIEW_KEY_FEATURE_BROWSER_EMULATION \
"Software\\Microsoft\\Internet " \
"Explorer\\Main\\FeatureControl\\FEATURE_BROWSER_EMULATION"
static int webview_fix_ie_compat_mode() {
HKEY hKey;
DWORD ie_version = 11000;
TCHAR appname[MAX_PATH + 1];
TCHAR *p;
if (GetModuleFileName(NULL, appname, MAX_PATH + 1) == 0) {
return -1;
}
for (p = &appname[strlen(appname) - 1]; p != appname && *p != '\\'; p--) {
}
p++;
if (RegCreateKey(HKEY_CURRENT_USER, WEBVIEW_KEY_FEATURE_BROWSER_EMULATION,
&hKey) != ERROR_SUCCESS) {
return -1;
}
if (RegSetValueEx(hKey, p, 0, REG_DWORD, (BYTE *)&ie_version,
sizeof(ie_version)) != ERROR_SUCCESS) {
RegCloseKey(hKey);
return -1;
}
RegCloseKey(hKey);
return 0;
}
WEBVIEW_API int webview_init(struct webview *w) {
WNDCLASSEX wc;
HINSTANCE hInstance;
DWORD style;
RECT clientRect;
RECT rect;
if (webview_fix_ie_compat_mode() < 0) {
return -1;