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webview.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 <stdlib.h>
#include <string.h>
#include <stdint.h>
#if defined(WEBVIEW_GTK)
#include <JavaScriptCore/JavaScript.h>
#include <gtk/gtk.h>
#include <webkit2/webkit2.h>
struct webview_priv {
int ready;
GtkWidget *window;
GtkWidget *scroller;
GtkWidget *webview;
GtkWidget *inspector_window;
int should_exit;
};
#elif 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;
};
#elif defined(WEBVIEW_COCOA)
#import <Cocoa/Cocoa.h>
#import <WebKit/WebKit.h>
#import <objc/runtime.h>
struct webview_priv {
NSAutoreleasePool *pool;
NSWindow *window;
WebView *webview;
id windowDelegate;
int should_exit;
};
#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 = {0};
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_GTK)
static void external_message_received_cb(WebKitUserContentManager *m,
WebKitJavascriptResult *r,
gpointer arg) {
(void)m;
struct webview *w = (struct webview *)arg;
if (w->external_invoke_cb == NULL) {
return;
}
JSGlobalContextRef context = webkit_javascript_result_get_global_context(r);
JSValueRef value = webkit_javascript_result_get_value(r);
JSStringRef js = JSValueToStringCopy(context, value, NULL);
size_t n = JSStringGetMaximumUTF8CStringSize(js);
char *s = g_new(char, n);
JSStringGetUTF8CString(js, s, n);
w->external_invoke_cb(w, s);
JSStringRelease(js);
g_free(s);
}
static void webview_load_changed_cb(WebKitWebView *webview,
WebKitLoadEvent event, gpointer arg) {
(void)webview;
struct webview *w = (struct webview *)arg;
if (event == WEBKIT_LOAD_FINISHED) {
w->priv.ready = 1;
}
}
static void webview_destroy_cb(GtkWidget *widget, gpointer arg) {
(void)widget;
struct webview *w = (struct webview *)arg;
webview_terminate(w);
}
static gboolean webview_context_menu_cb(WebKitWebView *webview,
GtkWidget *default_menu,
WebKitHitTestResult *hit_test_result,
gboolean triggered_with_keyboard,
gpointer userdata) {
(void)webview;
(void)default_menu;
(void)hit_test_result;
(void)triggered_with_keyboard;
(void)userdata;
return TRUE;
}
WEBVIEW_API int webview_init(struct webview *w) {
if (gtk_init_check(0, NULL) == FALSE) {
return -1;
}
w->priv.ready = 0;
w->priv.should_exit = 0;
w->priv.window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(w->priv.window), w->title);
if (w->resizable) {
gtk_window_set_default_size(GTK_WINDOW(w->priv.window), w->width,
w->height);
} else {
gtk_widget_set_size_request(w->priv.window, w->width, w->height);
}
gtk_window_set_resizable(GTK_WINDOW(w->priv.window), !!w->resizable);
gtk_window_set_position(GTK_WINDOW(w->priv.window), GTK_WIN_POS_CENTER);
w->priv.scroller = gtk_scrolled_window_new(NULL, NULL);
gtk_container_add(GTK_CONTAINER(w->priv.window), w->priv.scroller);
WebKitUserContentManager *m = webkit_user_content_manager_new();
webkit_user_content_manager_register_script_message_handler(m, "external");
g_signal_connect(m, "script-message-received::external",
G_CALLBACK(external_message_received_cb), w);
w->priv.webview = webkit_web_view_new_with_user_content_manager(m);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(w->priv.webview),
webview_check_url(w->url));
g_signal_connect(G_OBJECT(w->priv.webview), "load-changed",
G_CALLBACK(webview_load_changed_cb), w);
gtk_container_add(GTK_CONTAINER(w->priv.scroller), w->priv.webview);
if (w->debug) {
WebKitSettings *settings =
webkit_web_view_get_settings(WEBKIT_WEB_VIEW(w->priv.webview));
webkit_settings_set_enable_write_console_messages_to_stdout(settings, true);
webkit_settings_set_enable_developer_extras(settings, true);
} else {
g_signal_connect(G_OBJECT(w->priv.webview), "context-menu",
G_CALLBACK(webview_context_menu_cb), w);
}
gtk_widget_show_all(w->priv.window);
webkit_web_view_run_javascript(
WEBKIT_WEB_VIEW(w->priv.webview),
"window.external={invoke:function(x){"
"window.webkit.messageHandlers.external.postMessage(x);}}",
NULL, NULL, NULL);
g_signal_connect(G_OBJECT(w->priv.window), "destroy",
G_CALLBACK(webview_destroy_cb), w);
return 0;
}
WEBVIEW_API int webview_loop(struct webview *w, int blocking) {
gtk_main_iteration_do(blocking);
return w->priv.should_exit;
}
WEBVIEW_API void webview_set_title(struct webview *w, const char *title) {
gtk_window_set_title(GTK_WINDOW(w->priv.window), title);
}
WEBVIEW_API void webview_set_fullscreen(struct webview *w, int fullscreen) {
if (fullscreen) {
gtk_window_fullscreen(GTK_WINDOW(w->priv.window));
} else {
gtk_window_unfullscreen(GTK_WINDOW(w->priv.window));
}
}
WEBVIEW_API void webview_set_color(struct webview *w, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
GdkRGBA color = {r/255.0, g/255.0, b/255.0, a/255.0};
webkit_web_view_set_background_color(WEBKIT_WEB_VIEW(w->priv.webview), &color);
}
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) {
GtkWidget *dlg;
if (result != NULL) {
result[0] = '\0';
}
if (dlgtype == WEBVIEW_DIALOG_TYPE_OPEN ||
dlgtype == WEBVIEW_DIALOG_TYPE_SAVE) {
dlg = gtk_file_chooser_dialog_new(
title, GTK_WINDOW(w->priv.window),
(dlgtype == WEBVIEW_DIALOG_TYPE_OPEN
? (flags & WEBVIEW_DIALOG_FLAG_DIRECTORY
? GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER
: GTK_FILE_CHOOSER_ACTION_OPEN)
: GTK_FILE_CHOOSER_ACTION_SAVE),
"_Cancel", GTK_RESPONSE_CANCEL,
(dlgtype == WEBVIEW_DIALOG_TYPE_OPEN ? "_Open" : "_Save"),
GTK_RESPONSE_ACCEPT, NULL);
gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(dlg), FALSE);
gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(dlg), FALSE);
gtk_file_chooser_set_show_hidden(GTK_FILE_CHOOSER(dlg), TRUE);
gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(dlg), TRUE);
gtk_file_chooser_set_create_folders(GTK_FILE_CHOOSER(dlg), TRUE);
gint response = gtk_dialog_run(GTK_DIALOG(dlg));
if (response == GTK_RESPONSE_ACCEPT) {
gchar *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dlg));
g_strlcpy(result, filename, resultsz);
g_free(filename);
}
gtk_widget_destroy(dlg);
} else if (dlgtype == WEBVIEW_DIALOG_TYPE_ALERT) {
GtkMessageType type = GTK_MESSAGE_OTHER;
switch (flags & WEBVIEW_DIALOG_FLAG_ALERT_MASK) {
case WEBVIEW_DIALOG_FLAG_INFO:
type = GTK_MESSAGE_INFO;
break;
case WEBVIEW_DIALOG_FLAG_WARNING:
type = GTK_MESSAGE_WARNING;
break;
case WEBVIEW_DIALOG_FLAG_ERROR:
type = GTK_MESSAGE_ERROR;
break;
}
dlg = gtk_message_dialog_new(GTK_WINDOW(w->priv.window), GTK_DIALOG_MODAL,
type, GTK_BUTTONS_OK, "%s", title);
gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dlg), "%s",
arg);
gtk_dialog_run(GTK_DIALOG(dlg));
gtk_widget_destroy(dlg);
}
}
WEBVIEW_API int webview_eval(struct webview *w, const char *js) {
while (w->priv.ready == 0) {
g_main_context_iteration(0, FALSE);
}
webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(w->priv.webview), js, NULL,
NULL, NULL);
return 0;
}
static gboolean webview_dispatch_wrapper(gpointer userdata) {
struct webview_dispatch_arg *arg = (struct webview_dispatch_arg *)userdata;
(arg->fn)(arg->w, arg->arg);
g_free(arg);
return FALSE;
}
WEBVIEW_API void webview_dispatch(struct webview *w, webview_dispatch_fn fn,
void *arg) {
struct webview_dispatch_arg *context =
(struct webview_dispatch_arg *)g_new(struct webview_dispatch_arg *, 1);
context->w = w;
context->arg = arg;
context->fn = fn;
gdk_threads_add_idle(webview_dispatch_wrapper, context);
}
WEBVIEW_API void webview_terminate(struct webview *w) {
w->priv.should_exit = 1;
}
WEBVIEW_API void webview_exit(struct webview *w) { (void)w; }
WEBVIEW_API void webview_print_log(const char *s) {
fprintf(stderr, "%s\n", s);
}
#endif /* WEBVIEW_GTK */
#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 {
IOleClientSite client;
_IOleInPlaceSiteEx inplace;
_IDocHostUIHandlerEx ui;
IDispatch external;
} _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 {
*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 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;
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);
}