Add edge html files

the files are taken from zserge/webview webview-x branch

i removed all backends except edgehtml, cleaned the files up and formatted them

webview-sys builds but there are some missing symbols, this does not work yet
This commit is contained in:
zxey
2019-09-26 22:07:35 +02:00
parent 960aed804a
commit d098621de4
5 changed files with 720 additions and 8 deletions

View File

@@ -18,6 +18,7 @@ boxfnonce = "0.1"
[features]
default = ["V1_30"]
V1_30 = []
edge = ["webview-sys/edge"]
[dev-dependencies]
serde = "1.0"

View File

@@ -14,6 +14,9 @@ links = "webview"
name = "webview_sys"
path = "lib.rs"
[features]
edge = []
[dependencies]
bitflags = "1.0"

View File

@@ -6,11 +6,18 @@ use std::env;
fn main() {
let mut build = cc::Build::new();
build
.include("webview.h")
.file("webview.c")
.flag_if_supported("-std=c11")
.flag_if_supported("-w");
if cfg!(feature = "edge") {
build
.include("webview_edge.h")
.file("webview_edge.cc")
.flag_if_supported("/std:c++17");
} else {
build
.include("webview.h")
.file("webview.c")
.flag_if_supported("-std=c11")
.flag_if_supported("-w");
}
if env::var("DEBUG").is_err() {
build.define("NDEBUG", None);
@@ -21,9 +28,11 @@ fn main() {
let target = env::var("TARGET").unwrap();
if target.contains("windows") {
build.define("WEBVIEW_WINAPI", None);
for &lib in &["ole32", "comctl32", "oleaut32", "uuid", "gdi32"] {
println!("cargo:rustc-link-lib={}", lib);
if !cfg!(feature = "edge") {
build.define("WEBVIEW_WINAPI", None);
for &lib in &["ole32", "comctl32", "oleaut32", "uuid", "gdi32"] {
println!("cargo:rustc-link-lib={}", lib);
}
}
} else if target.contains("linux") || target.contains("bsd") {
let webkit = pkg_config::Config::new()

View File

@@ -0,0 +1,27 @@
#include "webview_edge.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef void (*webview_external_invoke_cb_t)(webview_t w, void* arg);
void wrapper_webview_free(webview_t w) {
webview_destroy(w);
}
webview_t wrapper_webview_new(const char* title, const char* url, int width, int height, int resizable, int debug, webview_external_invoke_cb_t external_invoke_cb, void* userdata) {
webview_t w = webview_create(debug, nullptr);
webview_set_title(w, title);
webview_set_bounds(w, 50, 50, width, height, 0);
webview_navigate(w, url);
return w;
}
void* wrapper_webview_get_userdata(webview_t w) {
return nullptr;
}
#ifdef __cplusplus
}
#endif

672
webview-sys/webview_edge.h Normal file
View File

@@ -0,0 +1,672 @@
/*
* 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
#ifndef WEBVIEW_API
#define WEBVIEW_API extern
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef void* webview_t;
// Create a new webview instance
WEBVIEW_API webview_t webview_create(int debug, void* wnd);
// Destroy a webview
WEBVIEW_API void webview_destroy(webview_t w);
// Run the main loop
WEBVIEW_API void webview_run(webview_t w);
// Stop the main loop
WEBVIEW_API void webview_terminate(webview_t w);
// Post a function to be executed on the main thread
WEBVIEW_API void webview_dispatch(
webview_t w, void (*fn)(webview_t w, void* arg), void* arg);
WEBVIEW_API void* webview_get_window(webview_t w);
WEBVIEW_API void webview_set_title(webview_t w, const char* title);
WEBVIEW_API void webview_set_bounds(
webview_t w, int x, int y, int width, int height, int flags);
WEBVIEW_API void webview_get_bounds(
webview_t w, int* x, int* y, int* width, int* height, int* flags);
WEBVIEW_API void webview_navigate(webview_t w, const char* url);
WEBVIEW_API void webview_init(webview_t w, const char* js);
WEBVIEW_API void webview_eval(webview_t w, const char* js);
#ifdef __cplusplus
}
#endif
#ifndef WEBVIEW_HEADER
#include <atomic>
#include <cstring>
#include <functional>
#include <future>
#include <map>
#include <string>
#include <vector>
//
// ====================================================================
//
// 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 <objbase.h>
#include <windows.h>
#include <winrt/Windows.Foundation.h>
#include <winrt/Windows.Web.UI.Interop.h>
#pragma comment(lib, "windowsapp")
#pragma comment(lib, "user32.lib")
namespace webview {
using dispatch_fn_t = std::function<void()>;
using msg_cb_t = std::function<void(const char* msg)>;
inline std::string url_encode(std::string s)
{
std::string encoded;
for (unsigned int i = 0; i < s.length(); i++) {
auto c = s[i];
if (isalnum(c) || c == '-' || c == '_' || c == '.' || c == '~') {
encoded = encoded + c;
} else {
char hex[4];
snprintf(hex, sizeof(hex), "%%%02x", c);
encoded = encoded + hex;
}
}
return encoded;
}
inline std::string url_decode(std::string s)
{
std::string decoded;
for (unsigned int i = 0; i < s.length(); i++) {
if (s[i] == '%') {
int n;
sscanf(s.substr(i + 1, 2).c_str(), "%x", &n);
decoded = decoded + static_cast<char>(n);
i = i + 2;
} else if (s[i] == '+') {
decoded = decoded + ' ';
} else {
decoded = decoded + s[i];
}
}
return decoded;
}
inline std::string html_from_uri(std::string s)
{
if (s.substr(0, 15) == "data:text/html,") {
return url_decode(s.substr(15));
}
return "";
}
inline int json_parse_c(const char* s, size_t sz, const char* key, size_t keysz,
const char** value, size_t* valuesz)
{
enum {
JSON_STATE_VALUE,
JSON_STATE_LITERAL,
JSON_STATE_STRING,
JSON_STATE_ESCAPE,
JSON_STATE_UTF8
} state
= JSON_STATE_VALUE;
const char* k = NULL;
int index = 1;
int depth = 0;
int utf8_bytes = 0;
if (key == NULL) {
index = keysz;
keysz = 0;
}
*value = NULL;
*valuesz = 0;
for (; sz > 0; s++, sz--) {
enum {
JSON_ACTION_NONE,
JSON_ACTION_START,
JSON_ACTION_END,
JSON_ACTION_START_STRUCT,
JSON_ACTION_END_STRUCT
} action
= JSON_ACTION_NONE;
unsigned char c = *s;
switch (state) {
case JSON_STATE_VALUE:
if (c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == ',' || c == ':') {
continue;
} else if (c == '"') {
action = JSON_ACTION_START;
state = JSON_STATE_STRING;
} else if (c == '{' || c == '[') {
action = JSON_ACTION_START_STRUCT;
} else if (c == '}' || c == ']') {
action = JSON_ACTION_END_STRUCT;
} else if (c == 't' || c == 'f' || c == 'n' || c == '-'
|| (c >= '0' && c <= '9')) {
action = JSON_ACTION_START;
state = JSON_STATE_LITERAL;
} else {
return -1;
}
break;
case JSON_STATE_LITERAL:
if (c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == ',' || c == ']'
|| c == '}' || c == ':') {
state = JSON_STATE_VALUE;
s--;
sz++;
action = JSON_ACTION_END;
} else if (c < 32 || c > 126) {
return -1;
} // fallthrough
case JSON_STATE_STRING:
if (c < 32 || (c > 126 && c < 192)) {
return -1;
} else if (c == '"') {
action = JSON_ACTION_END;
state = JSON_STATE_VALUE;
} else if (c == '\\') {
state = JSON_STATE_ESCAPE;
} else if (c >= 192 && c < 224) {
utf8_bytes = 1;
state = JSON_STATE_UTF8;
} else if (c >= 224 && c < 240) {
utf8_bytes = 2;
state = JSON_STATE_UTF8;
} else if (c >= 240 && c < 247) {
utf8_bytes = 3;
state = JSON_STATE_UTF8;
} else if (c >= 128 && c < 192) {
return -1;
}
break;
case JSON_STATE_ESCAPE:
if (c == '"' || c == '\\' || c == '/' || c == 'b' || c == 'f' || c == 'n'
|| c == 'r' || c == 't' || c == 'u') {
state = JSON_STATE_STRING;
} else {
return -1;
}
break;
case JSON_STATE_UTF8:
if (c < 128 || c > 191) {
return -1;
}
utf8_bytes--;
if (utf8_bytes == 0) {
state = JSON_STATE_STRING;
}
break;
default:
return -1;
}
if (action == JSON_ACTION_END_STRUCT) {
depth--;
}
if (depth == 1) {
if (action == JSON_ACTION_START || action == JSON_ACTION_START_STRUCT) {
if (index == 0) {
*value = s;
} else if (keysz > 0 && index == 1) {
k = s;
} else {
index--;
}
} else if (action == JSON_ACTION_END || action == JSON_ACTION_END_STRUCT) {
if (*value != NULL && index == 0) {
*valuesz = (size_t)(s + 1 - *value);
return 0;
} else if (keysz > 0 && k != NULL) {
if (keysz == (size_t)(s - k - 1) && memcmp(key, k + 1, keysz) == 0) {
index = 0;
} else {
index = 2;
}
k = NULL;
}
}
}
if (action == JSON_ACTION_START_STRUCT) {
depth++;
}
}
return -1;
}
inline std::string json_escape(std::string s)
{
// TODO: implement
return '"' + s + '"';
}
inline int json_unescape(const char* s, size_t n, char* out)
{
int r = 0;
if (*s++ != '"') {
return -1;
}
while (n > 2) {
char c = *s;
if (c == '\\') {
s++;
n--;
switch (*s) {
case 'b':
c = '\b';
break;
case 'f':
c = '\f';
break;
case 'n':
c = '\n';
break;
case 'r':
c = '\r';
break;
case 't':
c = '\t';
break;
case '\\':
c = '\\';
break;
case '/':
c = '/';
break;
case '\"':
c = '\"';
break;
default: // TODO: support unicode decoding
return -1;
}
}
if (out != NULL) {
*out++ = c;
}
s++;
n--;
r++;
}
if (*s != '"') {
return -1;
}
if (out != NULL) {
*out = '\0';
}
return r;
}
inline std::string json_parse(std::string s, std::string key, int index)
{
const char* value;
size_t value_sz;
if (key == "") {
json_parse_c(s.c_str(), s.length(), nullptr, index, &value, &value_sz);
} else {
json_parse_c(s.c_str(), s.length(), key.c_str(), key.length(), &value, &value_sz);
}
if (value != nullptr) {
if (value[0] != '"') {
return std::string(value, value_sz);
}
int n = json_unescape(value, value_sz, nullptr);
if (n > 0) {
char* decoded = new char[n];
json_unescape(value, value_sz, decoded);
auto result = std::string(decoded, n);
delete[] decoded;
return result;
}
}
return "";
}
LRESULT CALLBACK WebviewWndProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp);
class browser_window {
public:
browser_window(msg_cb_t cb, void* window)
: m_cb(cb)
{
if (window == nullptr) {
WNDCLASSEX wc;
ZeroMemory(&wc, sizeof(WNDCLASSEX));
wc.cbSize = sizeof(WNDCLASSEX);
wc.hInstance = GetModuleHandle(nullptr);
wc.lpszClassName = "webview";
wc.lpfnWndProc = WebviewWndProc;
RegisterClassEx(&wc);
m_window = CreateWindow("webview", "", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,
CW_USEDEFAULT, 640, 480, nullptr, nullptr, GetModuleHandle(nullptr),
nullptr);
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, nullptr, 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 set_title(const char* title) { SetWindowText(m_window, title); }
void set_size(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;
};
LRESULT CALLBACK WebviewWndProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
{
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;
}
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 debug, 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(nullptr, false, false, nullptr));
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 = nullptr;
std::string init_js = "";
};
class webview : public browser_engine {
public:
webview(bool debug = false, void* wnd = nullptr)
: browser_engine(
std::bind(&webview::on_message, this, std::placeholders::_1), debug, wnd)
{
}
void* window() { return (void*)m_window; }
void navigate(const char* url)
{
std::string html = html_from_uri(url);
if (html != "") {
browser_engine::navigate(("data:text/html," + url_encode(html)).c_str());
} else {
browser_engine::navigate(url);
}
}
using 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:
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 == nullptr) {
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;
};
} // namespace webview
WEBVIEW_API webview_t webview_create(int debug, void* wnd)
{
return new webview::webview(debug, wnd);
}
WEBVIEW_API void webview_destroy(webview_t w)
{
delete static_cast<webview::webview*>(w);
}
WEBVIEW_API void webview_run(webview_t w) { static_cast<webview::webview*>(w)->run(); }
WEBVIEW_API void webview_terminate(webview_t w)
{
static_cast<webview::webview*>(w)->terminate();
}
WEBVIEW_API void webview_dispatch(
webview_t w, void (*fn)(webview_t w, void* arg), void* arg)
{
static_cast<webview::webview*>(w)->dispatch([=]() { fn(w, arg); });
}
WEBVIEW_API void* webview_get_window(webview_t w)
{
return static_cast<webview::webview*>(w)->window();
}
WEBVIEW_API void webview_set_title(webview_t w, const char* title)
{
static_cast<webview::webview*>(w)->set_title(title);
}
WEBVIEW_API void webview_set_bounds(
webview_t w, int x, int y, int width, int height, int flags)
{
// TODO: x, y, flags
static_cast<webview::webview*>(w)->set_size(width, height, true);
}
WEBVIEW_API void webview_get_bounds(
webview_t w, int* x, int* y, int* width, int* height, int* flags)
{
// TODO
}
WEBVIEW_API void webview_navigate(webview_t w, const char* url)
{
static_cast<webview::webview*>(w)->navigate(url);
}
WEBVIEW_API void webview_init(webview_t w, const char* js)
{
static_cast<webview::webview*>(w)->init(js);
}
WEBVIEW_API void webview_eval(webview_t w, const char* js)
{
static_cast<webview::webview*>(w)->eval(js);
}
#endif /* WEBVIEW_HEADER */
#endif /* WEBVIEW_H */