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wails/webview/webview.h
Lea Anthony 4742fd7ed2 Initial commit of wails build
2019-01-08 07:58:46 +11:00

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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_GTK)
#include <JavaScriptCore/JavaScript.h>
#include <gtk/gtk.h>
#include <webkit2/webkit2.h>
struct webview_priv {
GtkWidget *window;
GtkWidget *scroller;
GtkWidget *webview;
GtkWidget *inspector_window;
GAsyncQueue *queue;
int ready;
int js_busy;
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 transparentTitlebar;
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_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.queue = g_async_queue_new();
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);
}
}
static void webview_eval_finished(GObject *object, GAsyncResult *result,
gpointer userdata) {
(void) object;
(void) result;
struct webview *w = (struct webview *)userdata;
w->priv.js_busy = 0;
}
WEBVIEW_API int webview_eval(struct webview *w, const char *js) {
while (w->priv.ready == 0) {
g_main_context_iteration(NULL, TRUE);
}
w->priv.js_busy = 1;
webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(w->priv.webview), js, NULL,
webview_eval_finished, w);
while (w->priv.js_busy) {
g_main_context_iteration(NULL, TRUE);
}
return 0;
}
static gboolean webview_dispatch_wrapper(gpointer userdata) {
struct webview *w = (struct webview *)userdata;
for (;;) {
struct webview_dispatch_arg *arg =
(struct webview_dispatch_arg *)g_async_queue_try_pop(w->priv.queue);
if (arg == NULL) {
break;
}
(arg->fn)(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;
g_async_queue_lock(w->priv.queue);
g_async_queue_push_unlocked(w->priv.queue, context);
if (g_async_queue_length_unlocked(w->priv.queue) == 1) {
gdk_threads_add_idle(webview_dispatch_wrapper, w);
}
g_async_queue_unlock(w->priv.queue);
}
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);
}
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);
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;
}
hInstance = GetModuleHandle(NULL);
if (hInstance == NULL) {
return -1;
}
if (OleInitialize(NULL) != S_OK) {
return -1;
}
ZeroMemory(&wc, sizeof(WNDCLASSEX));
wc.cbSize = sizeof(WNDCLASSEX);
wc.hInstance = hInstance;
wc.lpfnWndProc = wndproc;
wc.lpszClassName = classname;
RegisterClassEx(&wc);
style = WS_OVERLAPPEDWINDOW;
if (!w->resizable) {
style = WS_OVERLAPPED | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU;
}
rect.left = 0;
rect.top = 0;
rect.right = w->width;
rect.bottom = w->height;
AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW, 0);
GetClientRect(GetDesktopWindow(), &clientRect);
int left = (clientRect.right / 2) - ((rect.right - rect.left) / 2);
int top = (clientRect.bottom / 2) - ((rect.bottom - rect.top) / 2);
rect.right = rect.right - rect.left + left;
rect.left = left;
rect.bottom = rect.bottom - rect.top + top;
rect.top = top;
w->priv.hwnd =
CreateWindowEx(0, classname, w->title, style, rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top,
HWND_DESKTOP, NULL, hInstance, (void *)w);
if (w->priv.hwnd == 0) {
OleUninitialize();
return -1;
}
SetWindowLongPtr(w->priv.hwnd, GWLP_USERDATA, (LONG_PTR)w);
DisplayHTMLPage(w);
SetWindowText(w->priv.hwnd, w->title);
ShowWindow(w->priv.hwnd, SW_SHOWDEFAULT);
UpdateWindow(w->priv.hwnd);
SetFocus(w->priv.hwnd);
return 0;
}
WEBVIEW_API int webview_loop(struct webview *w, int blocking) {
MSG msg;
if (blocking) {
GetMessage(&msg, 0, 0, 0);
} else {
PeekMessage(&msg, 0, 0, 0, PM_REMOVE);
}
switch (msg.message) {
case WM_QUIT:
return -1;
case WM_COMMAND:
case WM_KEYDOWN:
case WM_KEYUP: {
HRESULT r = S_OK;
IWebBrowser2 *webBrowser2;
IOleObject *browser = *w->priv.browser;
if (browser->lpVtbl->QueryInterface(browser, iid_unref(&IID_IWebBrowser2),
(void **)&webBrowser2) == S_OK) {
IOleInPlaceActiveObject *pIOIPAO;
if (browser->lpVtbl->QueryInterface(
browser, iid_unref(&IID_IOleInPlaceActiveObject),
(void **)&pIOIPAO) == S_OK) {
r = pIOIPAO->lpVtbl->TranslateAccelerator(pIOIPAO, &msg);
pIOIPAO->lpVtbl->Release(pIOIPAO);
}
webBrowser2->lpVtbl->Release(webBrowser2);
}
if (r != S_FALSE) {
break;
}
}
default:
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return 0;
}
WEBVIEW_API int webview_eval(struct webview *w, const char *js) {
IWebBrowser2 *webBrowser2;
IHTMLDocument2 *htmlDoc2;
IDispatch *docDispatch;
IDispatch *scriptDispatch;
if ((*w->priv.browser)
->lpVtbl->QueryInterface((*w->priv.browser),
iid_unref(&IID_IWebBrowser2),
(void **)&webBrowser2) != S_OK) {
return -1;
}
if (webBrowser2->lpVtbl->get_Document(webBrowser2, &docDispatch) != S_OK) {
return -1;
}
if (docDispatch->lpVtbl->QueryInterface(docDispatch,
iid_unref(&IID_IHTMLDocument2),
(void **)&htmlDoc2) != S_OK) {
return -1;
}
if (htmlDoc2->lpVtbl->get_Script(htmlDoc2, &scriptDispatch) != S_OK) {
return -1;
}
DISPID dispid;
BSTR evalStr = SysAllocString(L"eval");
if (scriptDispatch->lpVtbl->GetIDsOfNames(
scriptDispatch, iid_unref(&IID_NULL), &evalStr, 1,
LOCALE_SYSTEM_DEFAULT, &dispid) != S_OK) {
SysFreeString(evalStr);
return -1;
}
SysFreeString(evalStr);
DISPPARAMS params;
VARIANT arg;
VARIANT result;
EXCEPINFO excepInfo;
UINT nArgErr = (UINT)-1;
params.cArgs = 1;
params.cNamedArgs = 0;
params.rgvarg = &arg;
arg.vt = VT_BSTR;
static const char *prologue = "(function(){";
static const char *epilogue = ";})();";
int n = strlen(prologue) + strlen(epilogue) + strlen(js) + 1;
char *eval = (char *)malloc(n);
snprintf(eval, n, "%s%s%s", prologue, js, epilogue);
wchar_t *buf = webview_to_utf16(eval);
if (buf == NULL) {
return -1;
}
arg.bstrVal = SysAllocString(buf);
if (scriptDispatch->lpVtbl->Invoke(
scriptDispatch, dispid, iid_unref(&IID_NULL), 0, DISPATCH_METHOD,
&params, &result, &excepInfo, &nArgErr) != S_OK) {
return -1;
}
SysFreeString(arg.bstrVal);
free(eval);
scriptDispatch->lpVtbl->Release(scriptDispatch);
htmlDoc2->lpVtbl->Release(htmlDoc2);
docDispatch->lpVtbl->Release(docDispatch);
return 0;
}
WEBVIEW_API void webview_dispatch(struct webview *w, webview_dispatch_fn fn,
void *arg) {
PostMessageW(w->priv.hwnd, WM_WEBVIEW_DISPATCH, (WPARAM)fn, (LPARAM)arg);
}
WEBVIEW_API void webview_set_title(struct webview *w, const char *title) {
SetWindowText(w->priv.hwnd, title);
}
WEBVIEW_API void webview_set_fullscreen(struct webview *w, int fullscreen) {
if (w->priv.is_fullscreen == !!fullscreen) {
return;
}
if (w->priv.is_fullscreen == 0) {
w->priv.saved_style = GetWindowLong(w->priv.hwnd, GWL_STYLE);
w->priv.saved_ex_style = GetWindowLong(w->priv.hwnd, GWL_EXSTYLE);
GetWindowRect(w->priv.hwnd, &w->priv.saved_rect);
}
w->priv.is_fullscreen = !!fullscreen;
if (fullscreen) {
MONITORINFO monitor_info;
SetWindowLong(w->priv.hwnd, GWL_STYLE,
w->priv.saved_style & ~(WS_CAPTION | WS_THICKFRAME));
SetWindowLong(w->priv.hwnd, GWL_EXSTYLE,
w->priv.saved_ex_style &
~(WS_EX_DLGMODALFRAME | WS_EX_WINDOWEDGE |
WS_EX_CLIENTEDGE | WS_EX_STATICEDGE));
monitor_info.cbSize = sizeof(monitor_info);
GetMonitorInfo(MonitorFromWindow(w->priv.hwnd, MONITOR_DEFAULTTONEAREST),
&monitor_info);
RECT r;
r.left = monitor_info.rcMonitor.left;
r.top = monitor_info.rcMonitor.top;
r.right = monitor_info.rcMonitor.right;
r.bottom = monitor_info.rcMonitor.bottom;
SetWindowPos(w->priv.hwnd, NULL, r.left, r.top, r.right - r.left,
r.bottom - r.top,
SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED);
} else {
SetWindowLong(w->priv.hwnd, GWL_STYLE, w->priv.saved_style);
SetWindowLong(w->priv.hwnd, GWL_EXSTYLE, w->priv.saved_ex_style);
SetWindowPos(w->priv.hwnd, NULL, w->priv.saved_rect.left,
w->priv.saved_rect.top,
w->priv.saved_rect.right - w->priv.saved_rect.left,
w->priv.saved_rect.bottom - w->priv.saved_rect.top,
SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED);
}
}
WEBVIEW_API void webview_set_color(struct webview *w, uint8_t r, uint8_t g,
uint8_t b, uint8_t a) {
HBRUSH brush = CreateSolidBrush(RGB(r, g, b));
SetClassLongPtr(w->priv.hwnd, GCLP_HBRBACKGROUND, (LONG_PTR)brush);
}
/* These are missing parts from MinGW */
#ifndef __IFileDialog_INTERFACE_DEFINED__
#define __IFileDialog_INTERFACE_DEFINED__
enum _FILEOPENDIALOGOPTIONS {
FOS_OVERWRITEPROMPT = 0x2,
FOS_STRICTFILETYPES = 0x4,
FOS_NOCHANGEDIR = 0x8,
FOS_PICKFOLDERS = 0x20,
FOS_FORCEFILESYSTEM = 0x40,
FOS_ALLNONSTORAGEITEMS = 0x80,
FOS_NOVALIDATE = 0x100,
FOS_ALLOWMULTISELECT = 0x200,
FOS_PATHMUSTEXIST = 0x800,
FOS_FILEMUSTEXIST = 0x1000,
FOS_CREATEPROMPT = 0x2000,
FOS_SHAREAWARE = 0x4000,
FOS_NOREADONLYRETURN = 0x8000,
FOS_NOTESTFILECREATE = 0x10000,
FOS_HIDEMRUPLACES = 0x20000,
FOS_HIDEPINNEDPLACES = 0x40000,
FOS_NODEREFERENCELINKS = 0x100000,
FOS_DONTADDTORECENT = 0x2000000,
FOS_FORCESHOWHIDDEN = 0x10000000,
FOS_DEFAULTNOMINIMODE = 0x20000000,
FOS_FORCEPREVIEWPANEON = 0x40000000
};
typedef DWORD FILEOPENDIALOGOPTIONS;
typedef enum FDAP { FDAP_BOTTOM = 0, FDAP_TOP = 1 } FDAP;
DEFINE_GUID(IID_IFileDialog, 0x42f85136, 0xdb7e, 0x439c, 0x85, 0xf1, 0xe4, 0x07,
0x5d, 0x13, 0x5f, 0xc8);
typedef struct IFileDialogVtbl {
BEGIN_INTERFACE
HRESULT(STDMETHODCALLTYPE *QueryInterface)
(IFileDialog *This, REFIID riid, void **ppvObject);
ULONG(STDMETHODCALLTYPE *AddRef)(IFileDialog *This);
ULONG(STDMETHODCALLTYPE *Release)(IFileDialog *This);
HRESULT(STDMETHODCALLTYPE *Show)(IFileDialog *This, HWND hwndOwner);
HRESULT(STDMETHODCALLTYPE *SetFileTypes)
(IFileDialog *This, UINT cFileTypes, const COMDLG_FILTERSPEC *rgFilterSpec);
HRESULT(STDMETHODCALLTYPE *SetFileTypeIndex)
(IFileDialog *This, UINT iFileType);
HRESULT(STDMETHODCALLTYPE *GetFileTypeIndex)
(IFileDialog *This, UINT *piFileType);
HRESULT(STDMETHODCALLTYPE *Advise)
(IFileDialog *This, IFileDialogEvents *pfde, DWORD *pdwCookie);
HRESULT(STDMETHODCALLTYPE *Unadvise)(IFileDialog *This, DWORD dwCookie);
HRESULT(STDMETHODCALLTYPE *SetOptions)
(IFileDialog *This, FILEOPENDIALOGOPTIONS fos);
HRESULT(STDMETHODCALLTYPE *GetOptions)
(IFileDialog *This, FILEOPENDIALOGOPTIONS *pfos);
HRESULT(STDMETHODCALLTYPE *SetDefaultFolder)
(IFileDialog *This, IShellItem *psi);
HRESULT(STDMETHODCALLTYPE *SetFolder)(IFileDialog *This, IShellItem *psi);
HRESULT(STDMETHODCALLTYPE *GetFolder)(IFileDialog *This, IShellItem **ppsi);
HRESULT(STDMETHODCALLTYPE *GetCurrentSelection)
(IFileDialog *This, IShellItem **ppsi);
HRESULT(STDMETHODCALLTYPE *SetFileName)(IFileDialog *This, LPCWSTR pszName);
HRESULT(STDMETHODCALLTYPE *GetFileName)(IFileDialog *This, LPWSTR *pszName);
HRESULT(STDMETHODCALLTYPE *SetTitle)(IFileDialog *This, LPCWSTR pszTitle);
HRESULT(STDMETHODCALLTYPE *SetOkButtonLabel)
(IFileDialog *This, LPCWSTR pszText);
HRESULT(STDMETHODCALLTYPE *SetFileNameLabel)
(IFileDialog *This, LPCWSTR pszLabel);
HRESULT(STDMETHODCALLTYPE *GetResult)(IFileDialog *This, IShellItem **ppsi);
HRESULT(STDMETHODCALLTYPE *AddPlace)
(IFileDialog *This, IShellItem *psi, FDAP fdap);
HRESULT(STDMETHODCALLTYPE *SetDefaultExtension)
(IFileDialog *This, LPCWSTR pszDefaultExtension);
HRESULT(STDMETHODCALLTYPE *Close)(IFileDialog *This, HRESULT hr);
HRESULT(STDMETHODCALLTYPE *SetClientGuid)(IFileDialog *This, REFGUID guid);
HRESULT(STDMETHODCALLTYPE *ClearClientData)(IFileDialog *This);
HRESULT(STDMETHODCALLTYPE *SetFilter)
(IFileDialog *This, IShellItemFilter *pFilter);
END_INTERFACE
} IFileDialogVtbl;
interface IFileDialog {
CONST_VTBL IFileDialogVtbl *lpVtbl;
};
DEFINE_GUID(IID_IFileOpenDialog, 0xd57c7288, 0xd4ad, 0x4768, 0xbe, 0x02, 0x9d,
0x96, 0x95, 0x32, 0xd9, 0x60);
DEFINE_GUID(IID_IFileSaveDialog, 0x84bccd23, 0x5fde, 0x4cdb, 0xae, 0xa4, 0xaf,
0x64, 0xb8, 0x3d, 0x78, 0xab);
#endif
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) {
if (dlgtype == WEBVIEW_DIALOG_TYPE_OPEN ||
dlgtype == WEBVIEW_DIALOG_TYPE_SAVE) {
IFileDialog *dlg = NULL;
IShellItem *res = NULL;
WCHAR *ws = NULL;
char *s = NULL;
FILEOPENDIALOGOPTIONS opts, add_opts;
if (dlgtype == WEBVIEW_DIALOG_TYPE_OPEN) {
if (CoCreateInstance(
iid_unref(&CLSID_FileOpenDialog), NULL, CLSCTX_INPROC_SERVER,
iid_unref(&IID_IFileOpenDialog), (void **)&dlg) != S_OK) {
goto error_dlg;
}
if (flags & WEBVIEW_DIALOG_FLAG_DIRECTORY) {
add_opts |= FOS_PICKFOLDERS;
}
add_opts |= FOS_NOCHANGEDIR | FOS_ALLNONSTORAGEITEMS | FOS_NOVALIDATE |
FOS_PATHMUSTEXIST | FOS_FILEMUSTEXIST | FOS_SHAREAWARE |
FOS_NOTESTFILECREATE | FOS_NODEREFERENCELINKS |
FOS_FORCESHOWHIDDEN | FOS_DEFAULTNOMINIMODE;
} else {
if (CoCreateInstance(
iid_unref(&CLSID_FileSaveDialog), NULL, CLSCTX_INPROC_SERVER,
iid_unref(&IID_IFileSaveDialog), (void **)&dlg) != S_OK) {
goto error_dlg;
}
add_opts |= FOS_OVERWRITEPROMPT | FOS_NOCHANGEDIR |
FOS_ALLNONSTORAGEITEMS | FOS_NOVALIDATE | FOS_SHAREAWARE |
FOS_NOTESTFILECREATE | FOS_NODEREFERENCELINKS |
FOS_FORCESHOWHIDDEN | FOS_DEFAULTNOMINIMODE;
}
if (dlg->lpVtbl->GetOptions(dlg, &opts) != S_OK) {
goto error_dlg;
}
opts &= ~FOS_NOREADONLYRETURN;
opts |= add_opts;
if (dlg->lpVtbl->SetOptions(dlg, opts) != S_OK) {
goto error_dlg;
}
if (dlg->lpVtbl->Show(dlg, w->priv.hwnd) != S_OK) {
goto error_dlg;
}
if (dlg->lpVtbl->GetResult(dlg, &res) != S_OK) {
goto error_dlg;
}
if (res->lpVtbl->GetDisplayName(res, SIGDN_FILESYSPATH, &ws) != S_OK) {
goto error_result;
}
s = webview_from_utf16(ws);
strncpy(result, s, resultsz);
result[resultsz - 1] = '\0';
CoTaskMemFree(ws);
error_result:
res->lpVtbl->Release(res);
error_dlg:
dlg->lpVtbl->Release(dlg);
return;
} else if (dlgtype == WEBVIEW_DIALOG_TYPE_ALERT) {
#if 0
/* MinGW often doesn't contain TaskDialog, we'll use MessageBox for now */
WCHAR *wtitle = webview_to_utf16(title);
WCHAR *warg = webview_to_utf16(arg);
TaskDialog(w->priv.hwnd, NULL, NULL, wtitle, warg, 0, NULL, NULL);
GlobalFree(warg);
GlobalFree(wtitle);
#else
UINT type = MB_OK;
switch (flags & WEBVIEW_DIALOG_FLAG_ALERT_MASK) {
case WEBVIEW_DIALOG_FLAG_INFO:
type |= MB_ICONINFORMATION;
break;
case WEBVIEW_DIALOG_FLAG_WARNING:
type |= MB_ICONWARNING;
break;
case WEBVIEW_DIALOG_FLAG_ERROR:
type |= MB_ICONERROR;
break;
}
MessageBox(w->priv.hwnd, arg, title, type);
#endif
}
}
WEBVIEW_API void webview_terminate(struct webview *w) { PostQuitMessage(0); }
WEBVIEW_API void webview_exit(struct webview *w) { OleUninitialize(); }
WEBVIEW_API void webview_print_log(const char *s) { OutputDebugString(s); }
#endif /* WEBVIEW_WINAPI */
#if defined(WEBVIEW_COCOA)
#if (!defined MAC_OS_X_VERSION_10_12) || \
MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_12
#define NSAlertStyleWarning NSWarningAlertStyle
#define NSAlertStyleCritical NSCriticalAlertStyle
#define NSWindowStyleMaskResizable NSResizableWindowMask
#define NSWindowStyleMaskMiniaturizable NSMiniaturizableWindowMask
#define NSWindowStyleMaskTitled NSTitledWindowMask
#define NSWindowStyleMaskClosable NSClosableWindowMask
#define NSWindowStyleMaskFullScreen NSFullScreenWindowMask
#define NSEventMaskAny NSAnyEventMask
#define NSEventModifierFlagCommand NSCommandKeyMask
#define NSEventModifierFlagOption NSAlternateKeyMask
#define NSAlertStyleInformational NSInformationalAlertStyle
#endif /* MAC_OS_X_VERSION_10_12 */
#if (!defined MAC_OS_X_VERSION_10_13) || \
MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_13
#define NSModalResponseOK NSFileHandlingPanelOKButton
#endif /* MAC_OS_X_VERSION_10_12, MAC_OS_X_VERSION_10_13 */
static void webview_window_will_close(id self, SEL cmd, id notification) {
struct webview *w =
(struct webview *)objc_getAssociatedObject(self, "webview");
webview_terminate(w);
}
static BOOL webview_is_selector_excluded_from_web_script(id self, SEL cmd,
SEL selector) {
return selector != @selector(invoke:);
}
static NSString *webview_webscript_name_for_selector(id self, SEL cmd,
SEL selector) {
return selector == @selector(invoke:) ? @"invoke" : nil;
}
static void webview_did_clear_window_object(id self, SEL cmd, id webview,
id script, id frame) {
[script setValue:self forKey:@"external"];
}
static void webview_external_invoke(id self, SEL cmd, id arg) {
struct webview *w =
(struct webview *)objc_getAssociatedObject(self, "webview");
if (w == NULL || w->external_invoke_cb == NULL) {
return;
}
if ([arg isKindOfClass:[NSString class]] == NO) {
return;
}
w->external_invoke_cb(w, [(NSString *)(arg)UTF8String]);
}
WEBVIEW_API int webview_init(struct webview *w) {
w->priv.pool = [[NSAutoreleasePool alloc] init];
[NSApplication sharedApplication];
Class webViewDelegateClass =
objc_allocateClassPair([NSObject class], "WebViewDelegate", 0);
class_addMethod(webViewDelegateClass, sel_registerName("windowWillClose:"),
(IMP)webview_window_will_close, "v@:@");
class_addMethod(object_getClass(webViewDelegateClass),
sel_registerName("isSelectorExcludedFromWebScript:"),
(IMP)webview_is_selector_excluded_from_web_script, "c@::");
class_addMethod(object_getClass(webViewDelegateClass),
sel_registerName("webScriptNameForSelector:"),
(IMP)webview_webscript_name_for_selector, "c@::");
class_addMethod(webViewDelegateClass,
sel_registerName("webView:didClearWindowObject:forFrame:"),
(IMP)webview_did_clear_window_object, "v@:@@@");
class_addMethod(webViewDelegateClass, sel_registerName("invoke:"),
(IMP)webview_external_invoke, "v@:@");
objc_registerClassPair(webViewDelegateClass);
w->priv.windowDelegate = [[webViewDelegateClass alloc] init];
objc_setAssociatedObject(w->priv.windowDelegate, "webview", (id)(w),
OBJC_ASSOCIATION_ASSIGN);
NSRect r = NSMakeRect(0, 0, w->width, w->height);
NSUInteger style = NSWindowStyleMaskTitled | NSWindowStyleMaskClosable |
NSWindowStyleMaskMiniaturizable;
if (w->resizable) {
style = style | NSWindowStyleMaskResizable;
// style = style | NSTexturedBackgroundWindowMask;
// style = style | NSUnifiedTitleAndToolbarWindowMask;
}
// Transparent title bar
// if (w->transparentTitlebar) {
// style = style | NSFullSizeContentViewWindowMask | NSUnifiedTitleAndToolbarWindowMask | NSTexturedBackgroundWindowMask;
// }
w->priv.window = [[NSWindow alloc] initWithContentRect:r
styleMask:style
backing:NSBackingStoreBuffered
defer:NO];
[w->priv.window autorelease];
// Title
NSString *nsTitle = [NSString stringWithUTF8String:w->title];
[w->priv.window setTitle:nsTitle];
[w->priv.window setDelegate:w->priv.windowDelegate];
[w->priv.window center];
// NSToolbar *toolbar = [[NSToolbar alloc] initWithIdentifier:@"wat"];
// toolbar.showsBaselineSeparator = NO;
// [w->priv.window setToolbar:toolbar];
// if (w->transparentTitlebar) {
// // Configure window look with hidden toolbar
// [w->priv.window setTitlebarAppearsTransparent:YES];
// [w->priv.window setTitleVisibility:NSWindowTitleHidden];
// // w->priv.window.isMovableByWindowBackground = true;
// }
[[NSUserDefaults standardUserDefaults] setBool:!!w->debug
forKey:@"WebKitDeveloperExtras"];
[[NSUserDefaults standardUserDefaults] synchronize];
w->priv.webview =
[[WebView alloc] initWithFrame:r frameName:@"WebView" groupName:nil];
NSURL *nsURL = [NSURL
URLWithString:[NSString stringWithUTF8String:webview_check_url(w->url)]];
[[w->priv.webview mainFrame] loadRequest:[NSURLRequest requestWithURL:nsURL]];
[w->priv.webview setAutoresizesSubviews:YES];
[w->priv.webview
setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
w->priv.webview.frameLoadDelegate = w->priv.windowDelegate;
[[w->priv.window contentView] addSubview:w->priv.webview];
[w->priv.window orderFrontRegardless];
// Disable scrolling - make this configurable
[[[w->priv.webview mainFrame] frameView] setAllowsScrolling:NO];
//
// ----> Enables WebGL but won't pass the app store guidelines
//
// WebPreferences *p = [w->priv.webview preferences];
// if ([p respondsToSelector:@selector(setWebGLEnabled:)]) {
// [p setWebGLEnabled:YES];
// }
[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
[NSApp finishLaunching];
[NSApp activateIgnoringOtherApps:YES];
NSMenu *menubar = [[[NSMenu alloc] initWithTitle:@""] autorelease];
NSString *appName = [[NSProcessInfo processInfo] processName];
NSMenuItem *appMenuItem =
[[[NSMenuItem alloc] initWithTitle:appName action:NULL keyEquivalent:@""]
autorelease];
NSMenu *appMenu = [[[NSMenu alloc] initWithTitle:appName] autorelease];
[appMenuItem setSubmenu:appMenu];
[menubar addItem:appMenuItem];
NSString *title = [@"Hide " stringByAppendingString:appName];
NSMenuItem *item = [[[NSMenuItem alloc] initWithTitle:title
action:@selector(hide:)
keyEquivalent:@"h"] autorelease];
[appMenu addItem:item];
item = [[[NSMenuItem alloc] initWithTitle:@"Hide Others"
action:@selector(hideOtherApplications:)
keyEquivalent:@"h"] autorelease];
[item setKeyEquivalentModifierMask:(NSEventModifierFlagOption |
NSEventModifierFlagCommand)];
[appMenu addItem:item];
item = [[[NSMenuItem alloc] initWithTitle:@"Show All"
action:@selector(unhideAllApplications:)
keyEquivalent:@""] autorelease];
[appMenu addItem:item];
[appMenu addItem:[NSMenuItem separatorItem]];
title = [@"Quit " stringByAppendingString:appName];
item = [[[NSMenuItem alloc] initWithTitle:title
action:@selector(terminate:)
keyEquivalent:@"q"] autorelease];
[appMenu addItem:item];
[NSApp setMainMenu:menubar];
w->priv.should_exit = 0;
return 0;
}
WEBVIEW_API int webview_loop(struct webview *w, int blocking) {
NSDate *until = (blocking ? [NSDate distantFuture] : [NSDate distantPast]);
NSEvent *event = [NSApp nextEventMatchingMask:NSEventMaskAny
untilDate:until
inMode:NSDefaultRunLoopMode
dequeue:YES];
if (event) {
[NSApp sendEvent:event];
}
return w->priv.should_exit;
}
WEBVIEW_API int webview_eval(struct webview *w, const char *js) {
NSString *nsJS = [NSString stringWithUTF8String:js];
[[w->priv.webview windowScriptObject] evaluateWebScript:nsJS];
return 0;
}
WEBVIEW_API void webview_set_title(struct webview *w, const char *title) {
NSString *nsTitle = [NSString stringWithUTF8String:title];
[w->priv.window setTitle:nsTitle];
}
WEBVIEW_API void webview_set_fullscreen(struct webview *w, int fullscreen) {
int b = ((([w->priv.window styleMask] & NSWindowStyleMaskFullScreen) ==
NSWindowStyleMaskFullScreen)
? 1
: 0);
if (b != fullscreen) {
[w->priv.window toggleFullScreen:nil];
}
}
WEBVIEW_API void webview_set_color(struct webview *w, uint8_t r, uint8_t g,
uint8_t b, uint8_t a) {
[w->priv.window setBackgroundColor:[NSColor colorWithRed:(CGFloat)r / 255.0
green:(CGFloat)g / 255.0
blue:(CGFloat)b / 255.0
alpha:(CGFloat)a / 255.0]];
if (0.5 >= ((r / 255.0 * 299.0) + (g / 255.0 * 587.0) + (b / 255.0 * 114.0)) /
1000.0) {
[w->priv.window
setAppearance:[NSAppearance
appearanceNamed:NSAppearanceNameVibrantDark]];
} else {
[w->priv.window
setAppearance:[NSAppearance
appearanceNamed:NSAppearanceNameVibrantLight]];
}
[w->priv.window setOpaque:NO];
[w->priv.window setTitlebarAppearsTransparent:YES];
[w->priv.webview setDrawsBackground:NO];
}
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) {
if (dlgtype == WEBVIEW_DIALOG_TYPE_OPEN ||
dlgtype == WEBVIEW_DIALOG_TYPE_SAVE) {
NSSavePanel *panel;
if (dlgtype == WEBVIEW_DIALOG_TYPE_OPEN) {
NSOpenPanel *openPanel = [NSOpenPanel openPanel];
if (flags & WEBVIEW_DIALOG_FLAG_DIRECTORY) {
[openPanel setCanChooseFiles:NO];
[openPanel setCanChooseDirectories:YES];
} else {
[openPanel setCanChooseFiles:YES];
[openPanel setCanChooseDirectories:NO];
}
[openPanel setResolvesAliases:NO];
[openPanel setAllowsMultipleSelection:NO];
panel = openPanel;
} else {
panel = [NSSavePanel savePanel];
}
[panel setCanCreateDirectories:YES];
[panel setShowsHiddenFiles:YES];
[panel setExtensionHidden:NO];
[panel setCanSelectHiddenExtension:NO];
[panel setTreatsFilePackagesAsDirectories:YES];
[panel beginSheetModalForWindow:w->priv.window
completionHandler:^(NSInteger result) {
[NSApp stopModalWithCode:result];
}];
if ([NSApp runModalForWindow:panel] == NSModalResponseOK) {
const char *filename = [[[panel URL] path] UTF8String];
strlcpy(result, filename, resultsz);
}
} else if (dlgtype == WEBVIEW_DIALOG_TYPE_ALERT) {
NSAlert *a = [NSAlert new];
switch (flags & WEBVIEW_DIALOG_FLAG_ALERT_MASK) {
case WEBVIEW_DIALOG_FLAG_INFO:
[a setAlertStyle:NSAlertStyleInformational];
break;
case WEBVIEW_DIALOG_FLAG_WARNING:
NSLog(@"warning");
[a setAlertStyle:NSAlertStyleWarning];
break;
case WEBVIEW_DIALOG_FLAG_ERROR:
NSLog(@"error");
[a setAlertStyle:NSAlertStyleCritical];
break;
}
[a setShowsHelp:NO];
[a setShowsSuppressionButton:NO];
[a setMessageText:[NSString stringWithUTF8String:title]];
[a setInformativeText:[NSString stringWithUTF8String:arg]];
[a addButtonWithTitle:@"OK"];
[a runModal];
[a release];
}
}
static void webview_dispatch_cb(void *arg) {
struct webview_dispatch_arg *context = (struct webview_dispatch_arg *)arg;
(context->fn)(context->w, context->arg);
free(context);
}
WEBVIEW_API void webview_dispatch(struct webview *w, webview_dispatch_fn fn,
void *arg) {
struct webview_dispatch_arg *context = (struct webview_dispatch_arg *)malloc(
sizeof(struct webview_dispatch_arg));
context->w = w;
context->arg = arg;
context->fn = fn;
dispatch_async_f(dispatch_get_main_queue(), context, webview_dispatch_cb);
}
WEBVIEW_API void webview_terminate(struct webview *w) {
w->priv.should_exit = 1;
}
WEBVIEW_API void webview_exit(struct webview *w) { [NSApp terminate:NSApp]; }
WEBVIEW_API void webview_print_log(const char *s) { NSLog(@"%s", s); }
#endif /* WEBVIEW_COCOA */
#endif /* WEBVIEW_IMPLEMENTATION */
#ifdef __cplusplus
}
#endif
#endif /* WEBVIEW_H */
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