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/++
A thin wrapper around common system webviews.
Based on: https://github.com/zserge/webview
Work in progress. DO NOT USE YET as I am prolly gonna break everything.
+/
module arsd.webview;
/* Original https://github.com/zserge/webview notice below:
* 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.
*/
/*
Port to D by Adam D. Ruppe, November 30, 2019
*/
version(Windows)
version=WEBVIEW_EDGE;
else version(linux)
version=WEBVIEW_GTK;
else version(OSX)
version=WEBVIEW_COCOA;
version(WEBVIEW_MSHTML)
version=WindowsWindow;
version(WEBVIEW_EDGE)
version=WindowsWindow;
version(Demo)
void main() {
auto wv = new WebView(true, null);
wv.navigate("http://dpldocs.info/");
wv.setTitle("omg a D webview");
wv.setSize(500, 500, true);
wv.eval("console.log('just testing');");
wv.run();
}
/++
+/
class WebView : browser_engine {
/++
Creates a new webview instance. If dbg is non-zero - developer tools will
be enabled (if the platform supports them). Window parameter can be a
pointer to the native window handle. If it's non-null - then child WebView
is embedded into the given parent window. Otherwise a new window is created.
Depending on the platform, a GtkWindow, NSWindow or HWND pointer can be
passed here.
+/
this(bool dbg, void* window) {
super(&on_message, dbg, window);
}
extern(C)
static void on_message(const char*) {}
/// Destroys a webview and closes the native window.
void destroy() {
}
/// Runs the main loop until it's terminated. After this function exits - you
/// must destroy the webview.
override void run() { super.run(); }
/// Stops the main loop. It is safe to call this function from another other
/// background thread.
override void terminate() { super.terminate(); }
/+
/// Posts a function to be executed on the main thread. You normally do not need
/// to call this function, unless you want to tweak the native window.
void dispatch(void function(WebView w, void *arg) fn, void *arg) {}
+/
/// Returns a native window handle pointer. When using GTK backend the pointer
/// is GtkWindow pointer, when using Cocoa backend the pointer is NSWindow
/// pointer, when using Win32 backend the pointer is HWND pointer.
void* getWindow() { return m_window; }
/// Updates the title of the native window. Must be called from the UI thread.
override void setTitle(const char *title) { super.setTitle(title); }
/// Navigates webview to the given URL. URL may be a data URI.
override void navigate(const char *url) { super.navigate(url); }
/// Injects JavaScript code at the initialization of the new page. Every time
/// the webview will open a the new page - this initialization code will be
/// executed. It is guaranteed that code is executed before window.onload.
override void init(const char *js) { super.init(js); }
/// Evaluates arbitrary JavaScript code. Evaluation happens asynchronously, also
/// the result of the expression is ignored. Use RPC bindings if you want to
/// receive notifications about the results of the evaluation.
override void eval(const char *js) { super.eval(js); }
/// Binds a native C callback so that it will appear under the given name as a
/// global JavaScript function. Internally it uses webview_init(). Callback
/// receives a request string and a user-provided argument pointer. Request
/// string is a JSON array of all the arguments passed to the JavaScript
/// function.
void bind(const char *name, void function(const char *, void *) fn, void *arg) {}
/// Allows to return a value from the native binding. Original request pointer
/// must be provided to help internal RPC engine match requests with responses.
/// If status is zero - result is expected to be a valid JSON result value.
/// If status is not zero - result is an error JSON object.
void webview_return(const char *req, int status, const char *result) {}
/*
void on_message(const char *msg) {
auto seq = json_parse(msg, "seq", 0);
auto name = json_parse(msg, "name", 0);
auto args = json_parse(msg, "args", 0);
auto fn = bindings[name];
if (fn == null) {
return;
}
std::async(std::launch::async, [=]() {
auto result = (*fn)(args);
dispatch([=]() {
eval(("var b = window['" + name + "'];b['callbacks'][" + seq + "](" +
result + ");b['callbacks'][" + seq +
"] = undefined;b['errors'][" + seq + "] = undefined;")
.c_str());
});
});
}
std::map<std::string, binding_t *> bindings;
alias binding_t = std::function<std::string(std::string)>;
void bind(const char *name, binding_t f) {
auto js = "(function() { var name = '" + std::string(name) + "';" + R"(
window[name] = function() {
var me = window[name];
var errors = me['errors'];
var callbacks = me['callbacks'];
if (!callbacks) {
callbacks = {};
me['callbacks'] = callbacks;
}
if (!errors) {
errors = {};
me['errors'] = errors;
}
var seq = (me['lastSeq'] || 0) + 1;
me['lastSeq'] = seq;
var promise = new Promise(function(resolve, reject) {
callbacks[seq] = resolve;
errors[seq] = reject;
});
window.external.invoke(JSON.stringify({
name: name,
seq:seq,
args: Array.prototype.slice.call(arguments),
}));
return promise;
}
})())";
init(js.c_str());
bindings[name] = new binding_t(f);
}
*/
}
private extern(C) {
alias dispatch_fn_t = void function();
alias msg_cb_t = void function(const char *msg);
}
version(WEBVIEW_GTK) {
pragma(lib, "gtk-3");
pragma(lib, "glib-2.0");
pragma(lib, "gobject-2.0");
pragma(lib, "webkit2gtk-4.0");
pragma(lib, "javascriptcoregtk-4.0");
private extern(C) {
import core.stdc.config;
alias GtkWidget = void;
enum GtkWindowType {
GTK_WINDOW_TOPLEVEL = 0
}
bool gtk_init_check(int*, char***);
GtkWidget* gtk_window_new(GtkWindowType);
c_ulong g_signal_connect_data(void*, const char*, void* /* function pointer!!! */, void*, void*, int);
GtkWidget* webkit_web_view_new();
alias WebKitUserContentManager = void;
WebKitUserContentManager* webkit_web_view_get_user_content_manager(GtkWidget*);
void gtk_container_add(GtkWidget*, GtkWidget*);
void gtk_widget_grab_focus(GtkWidget*);
void gtk_widget_show_all(GtkWidget*);
void gtk_main();
void gtk_main_quit();
void webkit_web_view_load_uri(GtkWidget*, const char*);
alias WebKitSettings = void;
WebKitSettings* webkit_web_view_get_settings(GtkWidget*);
void webkit_settings_set_enable_write_console_messages_to_stdout(WebKitSettings*, bool);
void webkit_settings_set_enable_developer_extras(WebKitSettings*, bool);
void webkit_user_content_manager_register_script_message_handler(WebKitUserContentManager*, const char*);
alias JSCValue = void;
alias WebKitJavascriptResult = void;
JSCValue* webkit_javascript_result_get_js_value(WebKitJavascriptResult*);
char* jsc_value_to_string(JSCValue*);
void g_free(void*);
void webkit_web_view_run_javascript(GtkWidget*, const char*, void*, void*, void*);
alias WebKitUserScript = void;
void webkit_user_content_manager_add_script(WebKitUserContentManager*, WebKitUserScript*);
WebKitUserScript* webkit_user_script_new(const char*, WebKitUserContentInjectedFrames, WebKitUserScriptInjectionTime, const char*, const char*);
enum WebKitUserContentInjectedFrames {
WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES,
WEBKIT_USER_CONTENT_INJECT_TOP_FRAME
}
enum WebKitUserScriptInjectionTime {
WEBKIT_USER_SCRIPT_INJECT_AT_DOCUMENT_START,
WEBKIT_USER_SCRIPT_INJECT_AT_DOCUMENT_END
}
void gtk_window_set_title(GtkWidget*, const char*);
void gtk_window_set_resizable(GtkWidget*, bool);
void gtk_window_set_default_size(GtkWidget*, int, int);
void gtk_widget_set_size_request(GtkWidget*, int, int);
}
private class browser_engine {
static extern(C)
void ondestroy (GtkWidget *w, void* arg) {
(cast(browser_engine) arg).terminate();
}
static extern(C)
void smr(WebKitUserContentManager* m, WebKitJavascriptResult* r, void* arg) {
auto w = cast(browser_engine) arg;
JSCValue *value = webkit_javascript_result_get_js_value(r);
auto s = jsc_value_to_string(value);
w.m_cb(s);
g_free(s);
}
this(msg_cb_t cb, bool dbg, void* window) {
m_cb = cb;
gtk_init_check(null, null);
m_window = cast(GtkWidget*) window;
if (m_window == null)
m_window = gtk_window_new(GtkWindowType.GTK_WINDOW_TOPLEVEL);
g_signal_connect_data(m_window, "destroy", &ondestroy, cast(void*) this, null, 0);
m_webview = webkit_web_view_new();
WebKitUserContentManager* manager = webkit_web_view_get_user_content_manager(m_webview);
g_signal_connect_data(manager, "script-message-received::external", &smr, cast(void*) this, null, 0);
webkit_user_content_manager_register_script_message_handler(manager, "external");
init("window.external={invoke:function(s){window.webkit.messageHandlers.external.postMessage(s);}}");
gtk_container_add(m_window, m_webview);
gtk_widget_grab_focus(m_webview);
if (dbg) {
WebKitSettings *settings = webkit_web_view_get_settings(m_webview);
webkit_settings_set_enable_write_console_messages_to_stdout(settings, true);
webkit_settings_set_enable_developer_extras(settings, true);
}
gtk_widget_show_all(m_window);
}
void run() { gtk_main(); }
void terminate() { gtk_main_quit(); }
void navigate(const char *url) {
webkit_web_view_load_uri(m_webview, url);
}
void setTitle(const char* title) {
gtk_window_set_title(m_window, title);
}
/+
void dispatch(std::function<void()> f) {
g_idle_add_full(G_PRIORITY_HIGH_IDLE, (GSourceFunc)([](void *f) -> int {
(*static_cast<dispatch_fn_t *>(f))();
return G_SOURCE_REMOVE;
}),
new std::function<void()>(f),
[](void *f) { delete static_cast<dispatch_fn_t *>(f); });
}
+/
void setSize(int width, int height, bool resizable) {
gtk_window_set_resizable(m_window, resizable);
if (resizable) {
gtk_window_set_default_size(m_window, width, height);
}
gtk_widget_set_size_request(m_window, width, height);
}
void init(const char *js) {
WebKitUserContentManager *manager = webkit_web_view_get_user_content_manager(m_webview);
webkit_user_content_manager_add_script(
manager, webkit_user_script_new(
js, WebKitUserContentInjectedFrames.WEBKIT_USER_CONTENT_INJECT_TOP_FRAME,
WebKitUserScriptInjectionTime.WEBKIT_USER_SCRIPT_INJECT_AT_DOCUMENT_START, null, null));
}
void eval(const char *js) {
webkit_web_view_run_javascript(m_webview, js, null, null, null);
}
protected:
GtkWidget* m_window;
GtkWidget* m_webview;
msg_cb_t m_cb;
}
} else version(WEBVIEW_COCOA) {
/+
//
// ====================================================================
//
// This implementation uses Cocoa WKWebView backend on macOS. It is
// written using ObjC runtime and uses WKWebView class as a browser runtime.
// You should pass "-framework Webkit" flag to the compiler.
//
// ====================================================================
//
#define OBJC_OLD_DISPATCH_PROTOTYPES 1
#include <CoreGraphics/CoreGraphics.h>
#include <objc/objc-runtime.h>
#define NSBackingStoreBuffered 2
#define NSWindowStyleMaskResizable 8
#define NSWindowStyleMaskMiniaturizable 4
#define NSWindowStyleMaskTitled 1
#define NSWindowStyleMaskClosable 2
#define NSApplicationActivationPolicyRegular 0
#define WKUserScriptInjectionTimeAtDocumentStart 0
id operator"" _cls(const char *s, std::size_t sz) {
return (id)objc_getClass(s);
}
SEL operator"" _sel(const char *s, std::size_t sz) {
return sel_registerName(s);
}
id operator"" _str(const char *s, std::size_t sz) {
return objc_msgSend("NSString"_cls, "stringWithUTF8String:"_sel, s);
}
class browser_engine {
public:
browser_engine(msg_cb_t cb, bool dbg, void *window) : m_cb(cb) {
// Application
id app = objc_msgSend("NSApplication"_cls, "sharedApplication"_sel);
objc_msgSend(app, "setActivationPolicy:"_sel,
NSApplicationActivationPolicyRegular);
// Delegate
auto cls = objc_allocateClassPair((Class) "NSObject"_cls, "AppDelegate", 0);
class_addProtocol(cls, objc_getProtocol("NSApplicationDelegate"));
class_addProtocol(cls, objc_getProtocol("WKScriptMessageHandler"));
class_addMethod(
cls, "applicationShouldTerminateAfterLastWindowClosed:"_sel,
(IMP)(+[](id self, SEL cmd, id notification) -> BOOL { return 1; }),
"c@:@");
class_addMethod(
cls, "userContentController:didReceiveScriptMessage:"_sel,
(IMP)(+[](id self, SEL cmd, id notification, id msg) {
auto w = (browser_engine *)objc_getAssociatedObject(self, "webview");
w->m_cb((const char *)objc_msgSend(objc_msgSend(msg, "body"_sel),
"UTF8String"_sel));
}),
"v@:@@");
objc_registerClassPair(cls);
auto delegate = objc_msgSend((id)cls, "new"_sel);
objc_setAssociatedObject(delegate, "webview", (id)this,
OBJC_ASSOCIATION_ASSIGN);
objc_msgSend(app, sel_registerName("setDelegate:"), delegate);
// Main window
if (window is null) {
m_window = objc_msgSend("NSWindow"_cls, "alloc"_sel);
m_window = objc_msgSend(
m_window, "initWithContentRect:styleMask:backing:defer:"_sel,
CGRectMake(0, 0, 0, 0), 0, NSBackingStoreBuffered, 0);
setSize(480, 320, true);
} else {
m_window = (id)window;
}
// Webview
auto config = objc_msgSend("WKWebViewConfiguration"_cls, "new"_sel);
m_manager = objc_msgSend(config, "userContentController"_sel);
m_webview = objc_msgSend("WKWebView"_cls, "alloc"_sel);
objc_msgSend(m_webview, "initWithFrame:configuration:"_sel,
CGRectMake(0, 0, 0, 0), config);
objc_msgSend(m_manager, "addScriptMessageHandler:name:"_sel, delegate,
"external"_str);
init(R"script(
window.external = {
invoke: function(s) {
window.webkit.messageHandlers.external.postMessage(s);
},
};
)script");
if (dbg) {
objc_msgSend(objc_msgSend(config, "preferences"_sel),
"setValue:forKey:"_sel, 1, "developerExtrasEnabled"_str);
}
objc_msgSend(m_window, "setContentView:"_sel, m_webview);
objc_msgSend(m_window, "makeKeyAndOrderFront:"_sel, null);
}
~browser_engine() { close(); }
void terminate() { close(); objc_msgSend("NSApp"_cls, "terminate:"_sel, null); }
void run() {
id app = objc_msgSend("NSApplication"_cls, "sharedApplication"_sel);
dispatch([&]() { objc_msgSend(app, "activateIgnoringOtherApps:"_sel, 1); });
objc_msgSend(app, "run"_sel);
}
void dispatch(std::function<void()> f) {
dispatch_async_f(dispatch_get_main_queue(), new dispatch_fn_t(f),
(dispatch_function_t)([](void *arg) {
auto f = static_cast<dispatch_fn_t *>(arg);
(*f)();
delete f;
}));
}
void setTitle(const char *title) {
objc_msgSend(
m_window, "setTitle:"_sel,
objc_msgSend("NSString"_cls, "stringWithUTF8String:"_sel, title));
}
void setSize(int width, int height, bool resizable) {
auto style = NSWindowStyleMaskTitled | NSWindowStyleMaskClosable |
NSWindowStyleMaskMiniaturizable;
if (resizable) {
style = style | NSWindowStyleMaskResizable;
}
objc_msgSend(m_window, "setStyleMask:"_sel, style);
objc_msgSend(m_window, "setFrame:display:animate:"_sel,
CGRectMake(0, 0, width, height), 1, 0);
}
void navigate(const char *url) {
auto nsurl = objc_msgSend(
"NSURL"_cls, "URLWithString:"_sel,
objc_msgSend("NSString"_cls, "stringWithUTF8String:"_sel, url));
objc_msgSend(
m_webview, "loadRequest:"_sel,
objc_msgSend("NSURLRequest"_cls, "requestWithURL:"_sel, nsurl));
}
void init(const char *js) {
objc_msgSend(
m_manager, "addUserScript:"_sel,
objc_msgSend(
objc_msgSend("WKUserScript"_cls, "alloc"_sel),
"initWithSource:injectionTime:forMainFrameOnly:"_sel,
objc_msgSend("NSString"_cls, "stringWithUTF8String:"_sel, js),
WKUserScriptInjectionTimeAtDocumentStart, 1));
}
void eval(const char *js) {
objc_msgSend(m_webview, "evaluateJavaScript:completionHandler:"_sel,
objc_msgSend("NSString"_cls, "stringWithUTF8String:"_sel, js),
null);
}
protected:
void close() { objc_msgSend(m_window, "close"_sel); }
id m_window;
id m_webview;
id m_manager;
msg_cb_t m_cb;
};
+/
} else version(WindowsWindow) {
/+
//
// ====================================================================
//
// This implementation uses Win32 API to create a native window. It can
// use either MSHTML or EdgeHTML backend as a browser engine.
//
// ====================================================================
//
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
pragma(lib, "user32");
class browser_window {
public:
browser_window(msg_cb_t cb, void *window) : m_cb(cb) {
if (window is null) {
WNDCLASSEX wc;
ZeroMemory(&wc, sizeof(WNDCLASSEX));
wc.cbSize = sizeof(WNDCLASSEX);
wc.hInstance = GetModuleHandle(null);
wc.lpszClassName = "webview";
wc.lpfnWndProc =
(WNDPROC)(+[](HWND hwnd, UINT msg, WPARAM wp, LPARAM lp) -> int {
auto w = (browser_window *)GetWindowLongPtr(hwnd, GWLP_USERDATA);
switch (msg) {
case WM_SIZE:
w->resize();
break;
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
w->terminate();
break;
default:
return DefWindowProc(hwnd, msg, wp, lp);
}
return 0;
});
RegisterClassEx(&wc);
m_window = CreateWindow("webview", "", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,
CW_USEDEFAULT, 640, 480, null, null,
GetModuleHandle(null), null);
SetWindowLongPtr(m_window, GWLP_USERDATA, (LONG_PTR)this);
} else {
m_window = *(static_cast<HWND *>(window));
}
ShowWindow(m_window, SW_SHOW);
UpdateWindow(m_window);
SetFocus(m_window);
}
void run() {
MSG msg;
BOOL res;
while ((res = GetMessage(&msg, null, 0, 0)) != -1) {
if (msg.hwnd) {
TranslateMessage(&msg);
DispatchMessage(&msg);
continue;
}
if (msg.message == WM_APP) {
auto f = (dispatch_fn_t *)(msg.lParam);
(*f)();
delete f;
} else if (msg.message == WM_QUIT) {
return;
}
}
}
void terminate() { PostQuitMessage(0); }
void dispatch(dispatch_fn_t f) {
PostThreadMessage(m_main_thread, WM_APP, 0, (LPARAM) new dispatch_fn_t(f));
}
void setTitle(const char *title) { SetWindowText(m_window, title); }
void setSize(int width, int height, bool resizable) {
RECT r;
r.left = 50;
r.top = 50;
r.right = width;
r.bottom = height;
AdjustWindowRect(&r, WS_OVERLAPPEDWINDOW, 0);
SetWindowPos(m_window, null, r.left, r.top, r.right - r.left,
r.bottom - r.top,
SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED);
}
protected:
virtual void resize() {}
HWND m_window;
DWORD m_main_thread = GetCurrentThreadId();
msg_cb_t m_cb;
};
+/
}
version(WEBVIEW_MSHTML) {
/+
#include <exdisp.h>
#include <exdispid.h>
#include <mshtmhst.h>
#include <mshtml.h>
#include <shobjidl.h>
pragma(lib, "ole32");
pragma(lib, "oleaut32");
#define DISPID_EXTERNAL_INVOKE 0x1000
class browser_engine : public browser_window,
public IOleClientSite,
public IOleInPlaceSite,
public IOleInPlaceFrame,
public IDocHostUIHandler,
public DWebBrowserEvents2 {
public:
browser_engine(msg_cb_t cb, bool dbg, void *window)
: browser_window(cb, window) {
RECT rect;
LPCLASSFACTORY cf = null;
IOleObject *obj = null;
fix_ie_compat_mode();
OleInitialize(null);
CoGetClassObject(CLSID_WebBrowser,
CLSCTX_INPROC_SERVER | CLSCTX_INPROC_HANDLER, null,
IID_IClassFactory, (void **)&cf);
cf->CreateInstance(null, IID_IOleObject, (void **)&obj);
cf->Release();
obj->SetClientSite(this);
OleSetContainedObject(obj, TRUE);
GetWindowRect(m_window, &rect);
obj->DoVerb(OLEIVERB_INPLACEACTIVATE, null, this, -1, m_window, &rect);
obj->QueryInterface(IID_IWebBrowser2, (void **)&m_webview);
IConnectionPointContainer *cpc;
IConnectionPoint *cp;
DWORD cookie;
m_webview->QueryInterface(IID_IConnectionPointContainer, (void **)&cpc);
cpc->FindConnectionPoint(DIID_DWebBrowserEvents2, &cp);
cpc->Release();
cp->Advise(static_cast<IOleClientSite *>(this), &cookie);
resize();
navigate("about:blank");
}
~browser_engine() { OleUninitialize(); }
void navigate(const char *url) {
VARIANT v;
DWORD size = MultiByteToWideChar(CP_UTF8, 0, url, -1, 0, 0);
WCHAR *ws = (WCHAR *)GlobalAlloc(GMEM_FIXED, sizeof(WCHAR) * size);
MultiByteToWideChar(CP_UTF8, 0, url, -1, ws, size);
VariantInit(&v);
v.vt = VT_BSTR;
v.bstrVal = SysAllocString(ws);
m_webview->Navigate2(&v, null, null, null, null);
VariantClear(&v);
}
void eval(const char *js) {
// TODO
}
private:
IWebBrowser2 *m_webview;
int fix_ie_compat_mode() {
const char *WEBVIEW_KEY_FEATURE_BROWSER_EMULATION =
"Software\\Microsoft\\Internet "
"Explorer\\Main\\FeatureControl\\FEATURE_BROWSER_EMULATION";
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;
}
// Inheruted via browser_window
void resize() override {
RECT rect;
GetClientRect(m_window, &rect);
m_webview->put_Left(0);
m_webview->put_Top(0);
m_webview->put_Width(rect.right);
m_webview->put_Height(rect.bottom);
m_webview->put_Visible(VARIANT_TRUE);
}
// Inherited via IUnknown
ULONG __stdcall AddRef(void) override { return 1; }
ULONG __stdcall Release(void) override { return 1; }
HRESULT __stdcall QueryInterface(REFIID riid, void **obj) override {
if (riid == IID_IUnknown || riid == IID_IOleClientSite) {
*obj = static_cast<IOleClientSite *>(this);
return S_OK;
}
if (riid == IID_IOleInPlaceSite) {
*obj = static_cast<IOleInPlaceSite *>(this);
return S_OK;
}
if (riid == IID_IDocHostUIHandler) {
*obj = static_cast<IDocHostUIHandler *>(this);
return S_OK;
}
if (riid == IID_IDispatch || riid == DIID_DWebBrowserEvents2) {
*obj = static_cast<IDispatch *>(this);
return S_OK;
}
*obj = null;
return E_NOINTERFACE;
}
// Inherited via IOleClientSite
HRESULT __stdcall SaveObject(void) override { return E_NOTIMPL; }
HRESULT __stdcall GetMoniker(DWORD dwAssign, DWORD dwWhichMoniker,
IMoniker **ppmk) override {
return E_NOTIMPL;
}
HRESULT __stdcall GetContainer(IOleContainer **ppContainer) override {
*ppContainer = null;
return E_NOINTERFACE;
}
HRESULT __stdcall ShowObject(void) override { return S_OK; }
HRESULT __stdcall OnShowWindow(BOOL fShow) override { return S_OK; }
HRESULT __stdcall RequestNewObjectLayout(void) override { return E_NOTIMPL; }
// Inherited via IOleInPlaceSite
HRESULT __stdcall GetWindow(HWND *phwnd) override {
*phwnd = m_window;
return S_OK;
}
HRESULT __stdcall ContextSensitiveHelp(BOOL fEnterMode) override {
return E_NOTIMPL;
}
HRESULT __stdcall CanInPlaceActivate(void) override { return S_OK; }
HRESULT __stdcall OnInPlaceActivate(void) override { return S_OK; }
HRESULT __stdcall OnUIActivate(void) override { return S_OK; }
HRESULT __stdcall GetWindowContext(
IOleInPlaceFrame **ppFrame, IOleInPlaceUIWindow **ppDoc,
LPRECT lprcPosRect, LPRECT lprcClipRect,
LPOLEINPLACEFRAMEINFO lpFrameInfo) override {
*ppFrame = static_cast<IOleInPlaceFrame *>(this);
*ppDoc = null;
lpFrameInfo->fMDIApp = FALSE;
lpFrameInfo->hwndFrame = m_window;
lpFrameInfo->haccel = 0;
lpFrameInfo->cAccelEntries = 0;
return S_OK;
}
HRESULT __stdcall Scroll(SIZE scrollExtant) override { return E_NOTIMPL; }
HRESULT __stdcall OnUIDeactivate(BOOL fUndoable) override { return S_OK; }
HRESULT __stdcall OnInPlaceDeactivate(void) override { return S_OK; }
HRESULT __stdcall DiscardUndoState(void) override { return E_NOTIMPL; }
HRESULT __stdcall DeactivateAndUndo(void) override { return E_NOTIMPL; }
HRESULT __stdcall OnPosRectChange(LPCRECT lprcPosRect) override {
IOleInPlaceObject *inplace;
m_webview->QueryInterface(IID_IOleInPlaceObject, (void **)&inplace);
inplace->SetObjectRects(lprcPosRect, lprcPosRect);
return S_OK;
}
// Inherited via IDocHostUIHandler
HRESULT __stdcall ShowContextMenu(DWORD dwID, POINT *ppt,
IUnknown *pcmdtReserved,
IDispatch *pdispReserved) override {
return S_OK;
}
HRESULT __stdcall GetHostInfo(DOCHOSTUIINFO *pInfo) override {
pInfo->dwDoubleClick = DOCHOSTUIDBLCLK_DEFAULT;
pInfo->dwFlags = DOCHOSTUIFLAG_NO3DBORDER;
return S_OK;
}
HRESULT __stdcall ShowUI(DWORD dwID, IOleInPlaceActiveObject *pActiveObject,
IOleCommandTarget *pCommandTarget,
IOleInPlaceFrame *pFrame,
IOleInPlaceUIWindow *pDoc) override {
return S_OK;
}
HRESULT __stdcall HideUI(void) override { return S_OK; }
HRESULT __stdcall UpdateUI(void) override { return S_OK; }
HRESULT __stdcall EnableModeless(BOOL fEnable) override { return S_OK; }
HRESULT __stdcall OnDocWindowActivate(BOOL fActivate) override {
return S_OK;
}
HRESULT __stdcall OnFrameWindowActivate(BOOL fActivate) override {
return S_OK;
}
HRESULT __stdcall ResizeBorder(LPCRECT prcBorder,
IOleInPlaceUIWindow *pUIWindow,
BOOL fRameWindow) override {
return S_OK;
}
HRESULT __stdcall GetOptionKeyPath(LPOLESTR *pchKey, DWORD dw) override {
return S_FALSE;
}
HRESULT __stdcall GetDropTarget(IDropTarget *pDropTarget,
IDropTarget **ppDropTarget) override {
return E_NOTIMPL;
}
HRESULT __stdcall GetExternal(IDispatch **ppDispatch) override {
*ppDispatch = static_cast<IDispatch *>(this);
return S_OK;
}
HRESULT __stdcall TranslateUrl(DWORD dwTranslate, LPWSTR pchURLIn,
LPWSTR *ppchURLOut) override {
*ppchURLOut = null;
return S_FALSE;
}
HRESULT __stdcall FilterDataObject(IDataObject *pDO,
IDataObject **ppDORet) override {
*ppDORet = null;
return S_FALSE;
}
HRESULT __stdcall TranslateAcceleratorA(LPMSG lpMsg,
const GUID *pguidCmdGroup,
DWORD nCmdID) {
return S_FALSE;
}
// Inherited via IOleInPlaceFrame
HRESULT __stdcall GetBorder(LPRECT lprectBorder) override { return S_OK; }
HRESULT __stdcall RequestBorderSpace(LPCBORDERWIDTHS pborderwidths) override {
return S_OK;
}
HRESULT __stdcall SetBorderSpace(LPCBORDERWIDTHS pborderwidths) override {
return S_OK;
}
HRESULT __stdcall SetActiveObject(IOleInPlaceActiveObject *pActiveObject,
LPCOLESTR pszObjName) override {
return S_OK;
}
HRESULT __stdcall InsertMenus(HMENU hmenuShared,
LPOLEMENUGROUPWIDTHS lpMenuWidths) override {
return S_OK;
}
HRESULT __stdcall SetMenu(HMENU hmenuShared, HOLEMENU holemenu,
HWND hwndActiveObject) override {
return S_OK;
}
HRESULT __stdcall RemoveMenus(HMENU hmenuShared) override { return S_OK; }
HRESULT __stdcall SetStatusText(LPCOLESTR pszStatusText) override {
return S_OK;
}
HRESULT __stdcall TranslateAcceleratorA(LPMSG lpmsg, WORD wID) {
return S_OK;
}
// Inherited via IDispatch
HRESULT __stdcall GetTypeInfoCount(UINT *pctinfo) override { return S_OK; }
HRESULT __stdcall GetTypeInfo(UINT iTInfo, LCID lcid,
ITypeInfo **ppTInfo) override {
return S_OK;
}
HRESULT __stdcall GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames,
LCID lcid, DISPID *rgDispId) override {
*rgDispId = DISPID_EXTERNAL_INVOKE;
return S_OK;
}
HRESULT __stdcall Invoke(DISPID dispIdMember, REFIID riid, LCID lcid,
WORD wFlags, DISPPARAMS *pDispParams,
VARIANT *pVarResult, EXCEPINFO *pExcepInfo,
UINT *puArgErr) override {
if (dispIdMember == DISPID_NAVIGATECOMPLETE2) {
} else if (dispIdMember == DISPID_DOCUMENTCOMPLETE) {
} else if (dispIdMember == DISPID_EXTERNAL_INVOKE) {
}
return S_OK;
}
};
+/
} else version(WEBVIEW_EDGE) {
// NOTE: this will prolly only work on Win 10 and maybe win 8.
// but def not older ones. Will have to version it or dynamically
// load. Should prolly make it opt-in to the old style, default to new w. multi-threading
/+
#include <objbase.h>
#include <winrt/Windows.Foundation.h>
#include <winrt/Windows.Web.UI.Interop.h>
#pragma comment(lib, "windowsapp")
using namespace winrt;
using namespace Windows::Foundation;
using namespace Windows::Web::UI;
using namespace Windows::Web::UI::Interop;
class browser_engine : public browser_window {
public:
browser_engine(msg_cb_t cb, bool dbg, void *window)
: browser_window(cb, window) {
init_apartment(winrt::apartment_type::single_threaded);
m_process = WebViewControlProcess();
auto op = m_process.CreateWebViewControlAsync(
reinterpret_cast<int64_t>(m_window), Rect());
if (op.Status() != AsyncStatus::Completed) {
handle h(CreateEvent(null, false, false, null));
op.Completed([h = h.get()](auto, auto) { SetEvent(h); });
HANDLE hs[] = {h.get()};
DWORD i;
CoWaitForMultipleHandles(COWAIT_DISPATCH_WINDOW_MESSAGES |
COWAIT_DISPATCH_CALLS |
COWAIT_INPUTAVAILABLE,
INFINITE, 1, hs, &i);
}
m_webview = op.GetResults();
m_webview.Settings().IsScriptNotifyAllowed(true);
m_webview.IsVisible(true);
m_webview.ScriptNotify([=](auto const &sender, auto const &args) {
std::string s = winrt::to_string(args.Value());
m_cb(s.c_str());
});
m_webview.NavigationStarting([=](auto const &sender, auto const &args) {
m_webview.AddInitializeScript(winrt::to_hstring(init_js));
});
init("window.external.invoke = s => window.external.notify(s)");
resize();
}
void navigate(const char *url) {
Uri uri(winrt::to_hstring(url));
// TODO: if url starts with 'data:text/html,' prefix then use it as a string
m_webview.Navigate(uri);
// m_webview.NavigateToString(winrt::to_hstring(url));
}
void init(const char *js) {
init_js = init_js + "(function(){" + js + "})();";
}
void eval(const char *js) {
m_webview.InvokeScriptAsync(
L"eval", single_threaded_vector<hstring>({winrt::to_hstring(js)}));
}
private:
void resize() {
RECT r;
GetClientRect(m_window, &r);
Rect bounds(r.left, r.top, r.right - r.left, r.bottom - r.top);
m_webview.Bounds(bounds);
}
WebViewControlProcess m_process;
WebViewControl m_webview = null;
std::string init_js = "";
};
+/
}
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