From 237fc0188a6e0be9cb4008a651690cbc3cd02c20 Mon Sep 17 00:00:00 2001 From: liwei Date: Sun, 21 Apr 2019 22:11:51 +0800 Subject: [PATCH] add vendor --- README.md | 2 +- .../github.com/zserge/webview/.gitattributes | 1 + vendor/github.com/zserge/webview/.gitignore | 7 + vendor/github.com/zserge/webview/.travis.yml | 22 + .../github.com/zserge/webview/CMakeLists.txt | 32 + vendor/github.com/zserge/webview/LICENSE | 21 + vendor/github.com/zserge/webview/README.md | 315 +++ vendor/github.com/zserge/webview/appveyor.yml | 38 + vendor/github.com/zserge/webview/webview.go | 572 +++++ vendor/github.com/zserge/webview/webview.h | 2265 +++++++++++++++++ .../github.com/zserge/webview/webview_test.cc | 176 ++ vendor/modules.txt | 2 + 12 files changed, 3452 insertions(+), 1 deletion(-) create mode 100644 vendor/github.com/zserge/webview/.gitattributes create mode 100644 vendor/github.com/zserge/webview/.gitignore create mode 100644 vendor/github.com/zserge/webview/.travis.yml create mode 100644 vendor/github.com/zserge/webview/CMakeLists.txt create mode 100644 vendor/github.com/zserge/webview/LICENSE create mode 100644 vendor/github.com/zserge/webview/README.md create mode 100644 vendor/github.com/zserge/webview/appveyor.yml create mode 100644 vendor/github.com/zserge/webview/webview.go create mode 100644 vendor/github.com/zserge/webview/webview.h create mode 100644 vendor/github.com/zserge/webview/webview_test.cc create mode 100644 vendor/modules.txt diff --git a/README.md b/README.md index fdcb3621d..5f3019b07 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,2 @@ ## go-download -A fast downlad client,support HTTP&P2P. \ No newline at end of file +A fast download client,support HTTP&P2P. \ No newline at end of file diff --git a/vendor/github.com/zserge/webview/.gitattributes b/vendor/github.com/zserge/webview/.gitattributes new file mode 100644 index 000000000..5170675f3 --- /dev/null +++ b/vendor/github.com/zserge/webview/.gitattributes @@ -0,0 +1 @@ +*.h linguist-language=c diff --git a/vendor/github.com/zserge/webview/.gitignore b/vendor/github.com/zserge/webview/.gitignore new file mode 100644 index 000000000..6307e1aab --- /dev/null +++ b/vendor/github.com/zserge/webview/.gitignore @@ -0,0 +1,7 @@ +# Build atrifacts +/build +/examples/minimal-go/minimal-go +/examples/minimal/minimal +/examples/minimal/minimal.exe +/examples/minimal/build +/examples/timer-cxx/build diff --git a/vendor/github.com/zserge/webview/.travis.yml b/vendor/github.com/zserge/webview/.travis.yml new file mode 100644 index 000000000..9d4625b75 --- /dev/null +++ b/vendor/github.com/zserge/webview/.travis.yml @@ -0,0 +1,22 @@ +language: go + +go: + - 1.x + +matrix: + include: + - os: linux + before_install: + - sudo add-apt-repository ppa:webkit-team/ppa -y + - sudo apt-get update + - sudo apt-get install libwebkit2gtk-4.0-dev -y + - os: osx + osx_image: xcode8.3 + +script: + - cd examples/minimal && mkdir -p build && cd build && cmake .. && make && ls -l && cd ../../.. + - cd examples/timer-cxx && mkdir -p build && cd build && cmake .. && make && ls -l && cd ../../.. + - cd examples/minimal-go && go build && ls -l && cd ../.. + - cd examples/todo-go && go build && ls -l && cd ../.. + - cd examples/page-load-go && go build && ls -l && cd ../.. + - cd examples/window-go && go build && ls -l && cd ../.. diff --git a/vendor/github.com/zserge/webview/CMakeLists.txt b/vendor/github.com/zserge/webview/CMakeLists.txt new file mode 100644 index 000000000..d6f75cf2b --- /dev/null +++ b/vendor/github.com/zserge/webview/CMakeLists.txt @@ -0,0 +1,32 @@ +cmake_minimum_required(VERSION 2.8) + +project(webview) + +if(APPLE) + set(WEBVIEW_COMPILE_DEFS "-DWEBVIEW_COCOA=1") + set(WEBVIEW_LIBS "-framework WebKit") +elseif(WIN32) + set(WEBVIEW_COMPILE_DEFS "-DWEBVIEW_WINAPI=1") + set(WEBVIEW_LIBS "ole32 comctl32 oleaut32 uuid") +else() + set(WEBVIEW_COMPILE_DEFS "-DWEBVIEW_GTK=1") + find_package(PkgConfig REQUIRED) + pkg_check_modules(GTK3 REQUIRED gtk+-3.0) + pkg_check_modules(WEBKIT2 REQUIRED webkit2gtk-4.0) + set(WEBVIEW_COMPILE_INCS ${GTK3_INCLUDE_DIRS} ${WEBKIT2_INCLUDE_DIRS} ${PROJECT_SOURCE_DIR}) + set(WEBVIEW_LIBS ${GTK3_LIBRARIES} ${WEBKIT2_LIBRARIES}) +endif() + +add_library(webview ${CMAKE_CURRENT_BINARY_DIR}/webview.c) +file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/webview.c "#define WEBVIEW_IMPLEMENTATION\n#include ") +target_include_directories(webview PUBLIC ${PROJECT_SOURCE_DIR} ${WEBVIEW_COMPILE_INCS}) +target_compile_definitions(webview PUBLIC ${WEBVIEW_COMPILE_DEFS}) +target_compile_options(webview PRIVATE ${WEBVIEW_COMPILE_OPTS}) +target_link_libraries(webview ${WEBVIEW_LIBS}) + +add_executable(webview_test WIN32 MACOSX_BUNDLE webview_test.cc) +set_target_properties(webview_test PROPERTIES CXX_STANDARD 11 CXX_STANDARD_REQUIRED YES CXX_EXTENSIONS NO) +find_package(Threads) +target_link_libraries(webview_test PRIVATE webview ${CMAKE_THREAD_LIBS_INIT}) +enable_testing () +add_test(NAME webview_test COMMAND webview_test) diff --git a/vendor/github.com/zserge/webview/LICENSE b/vendor/github.com/zserge/webview/LICENSE new file mode 100644 index 000000000..b18604bf4 --- /dev/null +++ b/vendor/github.com/zserge/webview/LICENSE @@ -0,0 +1,21 @@ +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. diff --git a/vendor/github.com/zserge/webview/README.md b/vendor/github.com/zserge/webview/README.md new file mode 100644 index 000000000..415c4fad1 --- /dev/null +++ b/vendor/github.com/zserge/webview/README.md @@ -0,0 +1,315 @@ +# webview + +[![Join the chat at https://gitter.im/zserge/webview](https://badges.gitter.im/zserge/webview.svg)](https://gitter.im/zserge/webview?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) +[![Build Status](https://travis-ci.org/zserge/webview.svg?branch=master)](https://travis-ci.org/zserge/webview) +[![Build status](https://ci.appveyor.com/api/projects/status/ksii33qx18d94h6v?svg=true)](https://ci.appveyor.com/project/zserge/webview) +[![GoDoc](https://godoc.org/github.com/zserge/webview?status.svg)](https://godoc.org/github.com/zserge/webview) +[![Go Report Card](https://goreportcard.com/badge/github.com/zserge/webview)](https://goreportcard.com/report/github.com/zserge/webview) + + +A tiny cross-platform webview library for C/C++/Golang to build modern cross-platform GUIs. Also, there are [Rust bindings](https://github.com/Boscop/webview-rs), [Python bindings](https://github.com/zserge/webview-python), [Nim bindings](https://github.com/oskca/webview), [Haskell](https://github.com/lettier/webviewhs) and [C# bindings](https://github.com/iwillspeak/webview-cs) available. + +**IMPORTANT NOTE: Webview is now being rewritten from scratch, with the support of EdgeHTML and using C++14 as a primary language (code becomes much shorter/cleaner, and we still have C and Go APIs as the primary interface). Please have a look at [webview-x](https://github.com/zserge/webview/tree/webview-x) branch before opening new issues. Current version of webview is still maintained, PRs with bugfixes are welcome, but new functionality will be added to the new branch. I expect to finish the new branch before March 2019, but no hard deadlines.** + +It supports two-way JavaScript bindings (to call JavaScript from C/C++/Go and to call C/C++/Go from JavaScript). + +It uses Cocoa/WebKit on macOS, gtk-webkit2 on Linux and MSHTML (IE10/11) on Windows. + +

linux

+ +## Webview for Go developers + +If you are interested in writing Webview apps in C/C++, [skip to the next section](#webview-for-cc-developers). + +### Getting started + +Install Webview library with `go get`: + +``` +$ go get github.com/zserge/webview +``` + +Import the package and start using it: + +```go +package main + +import "github.com/zserge/webview" + +func main() { + // Open wikipedia in a 800x600 resizable window + webview.Open("Minimal webview example", + "https://en.m.wikipedia.org/wiki/Main_Page", 800, 600, true) +} +``` + +It is not recommended to use `go run` (although it works perfectly fine on Linux). Use `go build` instead: + +```bash +# Linux +$ go build -o webview-example && ./webview-example + +# MacOS uses app bundles for GUI apps +$ mkdir -p example.app/Contents/MacOS +$ go build -o example.app/Contents/MacOS/example +$ open example.app # Or click on the app in Finder + +# Windows requires special linker flags for GUI apps. +# It's also recommended to use TDM-GCC-64 compiler for CGo. +# http://tdm-gcc.tdragon.net/download +$ go build -ldflags="-H windowsgui" -o webview-example.exe +``` + +### API + +See [godoc](https://godoc.org/github.com/zserge/webview). + +### How to serve or inject the initial HTML/CSS/JavaScript into the webview? + +First of all, you probably want to embed your assets (HTML/CSS/JavaScript) into the binary to have a standalone executable. Consider using [go-bindata](https://github.com/go-bindata/go-bindata) or any other similar tools. + +Now there are two major approaches to deploy the content: + +* Serve HTML/CSS/JS with an embedded HTTP server +* Injecting HTML/CSS/JS via the JavaScript binding API + +To serve the content it is recommended to use ephemeral ports: + +```go +ln, err := net.Listen("tcp", "127.0.0.1:0") +if err != nil { + log.Fatal(err) +} +defer ln.Close() +go func() { + // Set up your http server here + log.Fatal(http.Serve(ln, nil)) +}() +webview.Open("Hello", "http://"+ln.Addr().String(), 400, 300, false) +``` + +Injecting the content via JS bindings is a bit more complicated, but feels more solid and does not expose any additional open TCP ports. + +Leave `webview.Settings.URL` empty to start with bare minimal HTML5. It will open a webview with `
` in it. Alternatively, use a data URI to inject custom HTML code (don't forget to URL-encode it): + +```go +const myHTML = `....` +w := webview.New(webview.Settings{ + URL: `data:text/html,` + url.PathEscape(myHTML), +}) +``` + +Keep your initial HTML short (a few kilobytes maximum). + +Now you can inject more JavaScript once the webview becomes ready using `webview.Eval()`. You can also inject CSS styles using JavaScript: + +```go +w.Dispatch(func() { + // Inject CSS + w.Eval(fmt.Sprintf(`(function(css){ + var style = document.createElement('style'); + var head = document.head || document.getElementsByTagName('head')[0]; + style.setAttribute('type', 'text/css'); + if (style.styleSheet) { + style.styleSheet.cssText = css; + } else { + style.appendChild(document.createTextNode(css)); + } + head.appendChild(style); + })("%s")`, template.JSEscapeString(myStylesCSS))) + // Inject JS + w.Eval(myJSFramework) + w.Eval(myAppJS) +}) +``` + +This works fairly well across the platforms, see `counter-go` example for more details about how make a webview app with no web server. It also demonstrates how to use ReactJS, VueJS or Picodom with webview. + +### How to communicate between native Go and web UI? + +You already have seen how to use `w.Eval()` to run JavaScript inside the webview. There is also a way to call Go code from JavaScript. + +On the low level there is a special callback, `webview.Settings.ExternalInvokeCallback` that receives a string argument. This string can be passed from JavaScript using `window.external.invoke(someString)`. + +This might seem very inconvenient, and that is why there is a dedicated `webview.Bind()` API call. It binds an existing Go object (struct or struct pointer) and creates/injects JS API for it. Now you can call JS methods and they will result in calling native Go methods. Even more, if you modify the Go object - it can be automatically serialized to JSON and passed to the web UI to keep things in sync. + +Please, see `counter-go` example for more details about how to bind Go controllers to the web UI. + +## Debugging and development tips + +If terminal output is unavailable (e.g. if you launch app bundle on MacOS or +GUI app on Windows) you may use `webview.Debug()` and `webview.Debugf()` to +print logs. On MacOS such logs will be printed via NSLog and can be seen in the +`Console` app. On Windows they use `OutputDebugString` and can be seen using +`DebugView` app. On Linux logging is done to stderr and can be seen in the +terminal or redirected to a file. + +To debug the web part of your app you may use `webview.Settings.Debug` flag. It +enables the Web Inspector in WebKit and works on Linux and MacOS (use popup menu +to open the web inspector). On Windows there is no easy to way to enable +debugging, but you may include Firebug in your HTML code: + +```html + +``` + +Even though Firebug browser extension development has been stopped, Firebug +Lite is still available and just works. + +## Distributing webview apps + +On Linux you get a standalone executable. It will depend on GTK3 and GtkWebkit2, so if you distribute your app in DEB or RPM format include those dependencies. An application icon can be specified by providing a `.desktop` file. + +On MacOS you are likely to ship an app bundle. Make the following directory structure and just zip it: + +``` +example.app +└── Contents +    ├── Info.plist +    ├── MacOS +    | └── example +    └── Resources + └── example.icns +``` + +Here, `Info.plist` is a [property list file](https://developer.apple.com/library/content/documentation/General/Reference/InfoPlistKeyReference/Articles/AboutInformationPropertyListFiles.html) and `*.icns` is a special icon format. You may convert PNG to icns [online](https://iconverticons.com/online/). + +On Windows you probably would like to have a custom icon for your executable. It can be done by providing a resource file, compiling it and linking with it. Typically, `windres` utility is used to compile resources. + +You may find some example build scripts for all three platforms [here](https://github.com/naivesound/glitch/tree/master/dist). + +Also, if you want to cross-compile your webview app - use [xgo](https://github.com/karalabe/xgo). + +## Webview for C/C++ developers + +### Getting started + +Download [webview.h](https://raw.githubusercontent.com/zserge/webview/master/webview.h) and include it in your C/C++ code: + +```c +// main.c +#define WEBVIEW_IMPLEMENTATION +#include "webview.h" + +#ifdef WIN32 +int WINAPI WinMain(HINSTANCE hInt, HINSTANCE hPrevInst, LPSTR lpCmdLine, + int nCmdShow) { +#else +int main() { +#endif + /* Open wikipedia in a 800x600 resizable window */ + webview("Minimal webview example", + "https://en.m.wikipedia.org/wiki/Main_Page", 800, 600, 1); + return 0; +} +``` + +Build it: + +```bash +# Linux +$ cc main.c -DWEBVIEW_GTK=1 `pkg-config --cflags --libs gtk+-3.0 webkit2gtk-4.0` -o webview-example +# MacOS +$ cc main.c -DWEBVIEW_COCOA=1 -framework WebKit -o webview-example +# Windows (mingw) +$ cc main.c -DWEBVIEW_WINAPI=1 -lole32 -lcomctl32 -loleaut32 -luuid -mwindows -o webview-example.exe +``` + +### API + +For the most simple use cases there is only one function: + +```c +int webview(const char *title, const char *url, int width, int height, int resizable); +``` + +The following URL schemes are supported: + +* `http://` and `https://`, no surprises here. +* `file:///` can be useful if you want to unpack HTML/CSS assets to some + temporary directory and point a webview to open index.html from there. +* `data:text/html,...` allows to pass short HTML data inline + without using a web server or polluting the file system. Further + modifications of the webview contents can be done via JavaScript bindings. + +If have chosen a regular http URL scheme, you can use Mongoose or any other web server/framework you like. + +If you want to have more control over the app lifecycle you can use the following functions: + +```c + struct webview webview = { + .title = title, + .url = url, + .width = w, + .height = h, + .debug = debug, + .resizable = resizable, + }; + /* Create webview window using the provided options */ + webview_init(&webview); + /* Main app loop, can be either blocking or non-blocking */ + while (webview_loop(&webview, blocking) == 0); + /* Destroy webview window, often exits the app */ + webview_exit(&webview); + + /* To change window title later: */ + webview_set_title(&webview, "New title"); + + /* To terminate the webview main loop: */ + webview_terminate(&webview); + + /* To print logs to stderr, MacOS Console or DebugView: */ + webview_debug("exited: %d\n", 1); +``` + +To evaluate arbitrary JavaScript code use the following C function: + +```c +webview_eval(&webview, "alert('hello, world');"); +``` + +There is also a special callback (`webview.external_invoke_cb`) that can be invoked from JavaScript: + +```javascript +// C +void my_cb(struct webview *w, const char *arg) { + ... +} + +// JS +window.external.invoke('some arg'); +// Exactly one string argument must be provided, to pass more complex objects +// serialize them to JSON and parse it in C. To pass binary data consider using +// base64. +window.external.invoke(JSON.stringify({fn: 'sum', x: 5, y: 3})); +``` + +Webview library is meant to be used from a single UI thread only. So if you +want to call `webview_eval` or `webview_terminate` from some background thread +- you have to use `webview_dispatch` to post some arbitrary function with some +context to be executed inside the main UI thread: + +```c +// This function will be executed on the UI thread +void render(struct webview *w, void *arg) { + webview_eval(w, ......); +} + +// Dispatch render() function from another thread: +webview_dispatch(w, render, some_arg); +``` + +You may find some C/C++ examples in this repo that demonstrate the API above. + +Also, there is a more more advanced complete C++ app, [Slide](https://github.com/zserge/slide), that uses webview as a GUI. You may have a look how webview apps can be built, packaged and how automatic CI/CD can be set up. + +## Notes + +Execution on OpenBSD requires `wxallowed` [mount(8)](https://man.openbsd.org/mount.8) option. + +FreeBSD is also supported, to install webkit2 run `pkg install webkit2-gtk3`. + +## License + +Code is distributed under MIT license, feel free to use it in your proprietary +projects as well. diff --git a/vendor/github.com/zserge/webview/appveyor.yml b/vendor/github.com/zserge/webview/appveyor.yml new file mode 100644 index 000000000..46f1cd715 --- /dev/null +++ b/vendor/github.com/zserge/webview/appveyor.yml @@ -0,0 +1,38 @@ +os: Visual Studio 2017 + +version: "{build}" + +clone_folder: c:\gopath\src\github.com\zserge\webview + +environment: + global: + GOPATH: C:\gopath + matrix: + - GETH_ARCH: amd64 + GOARCH: amd64 + CGO_ENABLED: 1 + MSYS2_ARCH: x86_64 + MSYS2_BITS: 64 + MSYSTEM: MINGW64 + PATH: C:\msys64\mingw64\bin\;C:\Program Files (x86)\NSIS\;%PATH% + - GETH_ARCH: 386 + GOARCH: 386 + CGO_ENABLED: 1 + MSYS2_ARCH: i686 + MSYS2_BITS: 32 + MSYSTEM: MINGW32 + PATH: C:\msys64\mingw32\bin\;C:\Program Files (x86)\NSIS\;%PATH% + +install: + - echo %PATH% + - echo %GOPATH% + - set PATH=%GOPATH%\bin;c:\go\bin;%PATH% + - go version + - go env + - gcc --version + +build_script: + - go build -o buildOutput\minimal -i ./examples/minimal-go + - go build -o buildOutput\todo -i ./examples/todo-go + - go build -o buildOutput\window -i ./examples/window-go + - go build -o buildOutput\pageload -i ./examples/page-load-go diff --git a/vendor/github.com/zserge/webview/webview.go b/vendor/github.com/zserge/webview/webview.go new file mode 100644 index 000000000..09665217a --- /dev/null +++ b/vendor/github.com/zserge/webview/webview.go @@ -0,0 +1,572 @@ +// +// Package webview implements Go bindings to https://github.com/zserge/webview C library. +// +// Bindings closely repeat the C APIs and include both, a simplified +// single-function API to just open a full-screen webview window, and a more +// advanced and featureful set of APIs, including Go-to-JavaScript bindings. +// +// The library uses gtk-webkit, Cocoa/Webkit and MSHTML (IE8..11) as a browser +// engine and supports Linux, MacOS and Windows 7..10 respectively. +// +package webview + +/* +#cgo linux openbsd freebsd CFLAGS: -DWEBVIEW_GTK=1 +#cgo linux openbsd freebsd pkg-config: gtk+-3.0 webkit2gtk-4.0 + +#cgo windows CFLAGS: -DWEBVIEW_WINAPI=1 +#cgo windows LDFLAGS: -lole32 -lcomctl32 -loleaut32 -luuid -lgdi32 + +#cgo darwin CFLAGS: -DWEBVIEW_COCOA=1 +#cgo darwin LDFLAGS: -framework WebKit + +#include +#include +#define WEBVIEW_STATIC +#define WEBVIEW_IMPLEMENTATION +#include "webview.h" + +extern void _webviewExternalInvokeCallback(void *, void *); + +static inline void CgoWebViewFree(void *w) { + free((void *)((struct webview *)w)->title); + free((void *)((struct webview *)w)->url); + free(w); +} + +static inline void *CgoWebViewCreate(int width, int height, char *title, char *url, int resizable, int debug) { + struct webview *w = (struct webview *) calloc(1, sizeof(*w)); + w->width = width; + w->height = height; + w->title = title; + w->url = url; + w->resizable = resizable; + w->debug = debug; + w->external_invoke_cb = (webview_external_invoke_cb_t) _webviewExternalInvokeCallback; + if (webview_init(w) != 0) { + CgoWebViewFree(w); + return NULL; + } + return (void *)w; +} + +static inline int CgoWebViewLoop(void *w, int blocking) { + return webview_loop((struct webview *)w, blocking); +} + +static inline void CgoWebViewTerminate(void *w) { + webview_terminate((struct webview *)w); +} + +static inline void CgoWebViewExit(void *w) { + webview_exit((struct webview *)w); +} + +static inline void CgoWebViewSetTitle(void *w, char *title) { + webview_set_title((struct webview *)w, title); +} + +static inline void CgoWebViewSetFullscreen(void *w, int fullscreen) { + webview_set_fullscreen((struct webview *)w, fullscreen); +} + +static inline void CgoWebViewSetColor(void *w, uint8_t r, uint8_t g, uint8_t b, uint8_t a) { + webview_set_color((struct webview *)w, r, g, b, a); +} + +static inline void CgoDialog(void *w, int dlgtype, int flags, + char *title, char *arg, char *res, size_t ressz) { + webview_dialog(w, dlgtype, flags, + (const char*)title, (const char*) arg, res, ressz); +} + +static inline int CgoWebViewEval(void *w, char *js) { + return webview_eval((struct webview *)w, js); +} + +static inline void CgoWebViewInjectCSS(void *w, char *css) { + webview_inject_css((struct webview *)w, css); +} + +extern void _webviewDispatchGoCallback(void *); +static inline void _webview_dispatch_cb(struct webview *w, void *arg) { + _webviewDispatchGoCallback(arg); +} +static inline void CgoWebViewDispatch(void *w, uintptr_t arg) { + webview_dispatch((struct webview *)w, _webview_dispatch_cb, (void *)arg); +} +*/ +import "C" +import ( + "bytes" + "encoding/json" + "errors" + "fmt" + "html/template" + "log" + "reflect" + "runtime" + "sync" + "unicode" + "unsafe" +) + +func init() { + // Ensure that main.main is called from the main thread + runtime.LockOSThread() +} + +// Open is a simplified API to open a single native window with a full-size webview in +// it. It can be helpful if you want to communicate with the core app using XHR +// or WebSockets (as opposed to using JavaScript bindings). +// +// Window appearance can be customized using title, width, height and resizable parameters. +// URL must be provided and can user either a http or https protocol, or be a +// local file:// URL. On some platforms "data:" URLs are also supported +// (Linux/MacOS). +func Open(title, url string, w, h int, resizable bool) error { + titleStr := C.CString(title) + defer C.free(unsafe.Pointer(titleStr)) + urlStr := C.CString(url) + defer C.free(unsafe.Pointer(urlStr)) + resize := C.int(0) + if resizable { + resize = C.int(1) + } + + r := C.webview(titleStr, urlStr, C.int(w), C.int(h), resize) + if r != 0 { + return errors.New("failed to create webview") + } + return nil +} + +// Debug prints a debug string using stderr on Linux/BSD, NSLog on MacOS and +// OutputDebugString on Windows. +func Debug(a ...interface{}) { + s := C.CString(fmt.Sprint(a...)) + defer C.free(unsafe.Pointer(s)) + C.webview_print_log(s) +} + +// Debugf prints a formatted debug string using stderr on Linux/BSD, NSLog on +// MacOS and OutputDebugString on Windows. +func Debugf(format string, a ...interface{}) { + s := C.CString(fmt.Sprintf(format, a...)) + defer C.free(unsafe.Pointer(s)) + C.webview_print_log(s) +} + +// ExternalInvokeCallbackFunc is a function type that is called every time +// "window.external.invoke()" is called from JavaScript. Data is the only +// obligatory string parameter passed into the "invoke(data)" function from +// JavaScript. To pass more complex data serialized JSON or base64 encoded +// string can be used. +type ExternalInvokeCallbackFunc func(w WebView, data string) + +// Settings is a set of parameters to customize the initial WebView appearance +// and behavior. It is passed into the webview.New() constructor. +type Settings struct { + // WebView main window title + Title string + // URL to open in a webview + URL string + // Window width in pixels + Width int + // Window height in pixels + Height int + // Allows/disallows window resizing + Resizable bool + // Enable debugging tools (Linux/BSD/MacOS, on Windows use Firebug) + Debug bool + // A callback that is executed when JavaScript calls "window.external.invoke()" + ExternalInvokeCallback ExternalInvokeCallbackFunc +} + +// WebView is an interface that wraps the basic methods for controlling the UI +// loop, handling multithreading and providing JavaScript bindings. +type WebView interface { + // Run() starts the main UI loop until the user closes the webview window or + // Terminate() is called. + Run() + // Loop() runs a single iteration of the main UI. + Loop(blocking bool) bool + // SetTitle() changes window title. This method must be called from the main + // thread only. See Dispatch() for more details. + SetTitle(title string) + // SetFullscreen() controls window full-screen mode. This method must be + // called from the main thread only. See Dispatch() for more details. + SetFullscreen(fullscreen bool) + // SetColor() changes window background color. This method must be called from + // the main thread only. See Dispatch() for more details. + SetColor(r, g, b, a uint8) + // Eval() evaluates an arbitrary JS code inside the webview. This method must + // be called from the main thread only. See Dispatch() for more details. + Eval(js string) error + // InjectJS() injects an arbitrary block of CSS code using the JS API. This + // method must be called from the main thread only. See Dispatch() for more + // details. + InjectCSS(css string) + // Dialog() opens a system dialog of the given type and title. String + // argument can be provided for certain dialogs, such as alert boxes. For + // alert boxes argument is a message inside the dialog box. + Dialog(dlgType DialogType, flags int, title string, arg string) string + // Terminate() breaks the main UI loop. This method must be called from the main thread + // only. See Dispatch() for more details. + Terminate() + // Dispatch() schedules some arbitrary function to be executed on the main UI + // thread. This may be helpful if you want to run some JavaScript from + // background threads/goroutines, or to terminate the app. + Dispatch(func()) + // Exit() closes the window and cleans up the resources. Use Terminate() to + // forcefully break out of the main UI loop. + Exit() + // Bind() registers a binding between a given value and a JavaScript object with the + // given name. A value must be a struct or a struct pointer. All methods are + // available under their camel-case names, starting with a lower-case letter, + // e.g. "FooBar" becomes "fooBar" in JavaScript. + // Bind() returns a function that updates JavaScript object with the current + // Go value. You only need to call it if you change Go value asynchronously. + Bind(name string, v interface{}) (sync func(), err error) +} + +// DialogType is an enumeration of all supported system dialog types +type DialogType int + +const ( + // DialogTypeOpen is a system file open dialog + DialogTypeOpen DialogType = iota + // DialogTypeSave is a system file save dialog + DialogTypeSave + // DialogTypeAlert is a system alert dialog (message box) + DialogTypeAlert +) + +const ( + // DialogFlagFile is a normal file picker dialog + DialogFlagFile = C.WEBVIEW_DIALOG_FLAG_FILE + // DialogFlagDirectory is an open directory dialog + DialogFlagDirectory = C.WEBVIEW_DIALOG_FLAG_DIRECTORY + // DialogFlagInfo is an info alert dialog + DialogFlagInfo = C.WEBVIEW_DIALOG_FLAG_INFO + // DialogFlagWarning is a warning alert dialog + DialogFlagWarning = C.WEBVIEW_DIALOG_FLAG_WARNING + // DialogFlagError is an error dialog + DialogFlagError = C.WEBVIEW_DIALOG_FLAG_ERROR +) + +var ( + m sync.Mutex + index uintptr + fns = map[uintptr]func(){} + cbs = map[WebView]ExternalInvokeCallbackFunc{} +) + +type webview struct { + w unsafe.Pointer +} + +var _ WebView = &webview{} + +func boolToInt(b bool) int { + if b { + return 1 + } + return 0 +} + +// New creates and opens a new webview window using the given settings. The +// returned object implements the WebView interface. This function returns nil +// if a window can not be created. +func New(settings Settings) WebView { + if settings.Width == 0 { + settings.Width = 640 + } + if settings.Height == 0 { + settings.Height = 480 + } + if settings.Title == "" { + settings.Title = "WebView" + } + w := &webview{} + w.w = C.CgoWebViewCreate(C.int(settings.Width), C.int(settings.Height), + C.CString(settings.Title), C.CString(settings.URL), + C.int(boolToInt(settings.Resizable)), C.int(boolToInt(settings.Debug))) + m.Lock() + if settings.ExternalInvokeCallback != nil { + cbs[w] = settings.ExternalInvokeCallback + } else { + cbs[w] = func(w WebView, data string) {} + } + m.Unlock() + return w +} + +func (w *webview) Loop(blocking bool) bool { + block := C.int(0) + if blocking { + block = 1 + } + return C.CgoWebViewLoop(w.w, block) == 0 +} + +func (w *webview) Run() { + for w.Loop(true) { + } +} + +func (w *webview) Exit() { + C.CgoWebViewExit(w.w) +} + +func (w *webview) Dispatch(f func()) { + m.Lock() + for ; fns[index] != nil; index++ { + } + fns[index] = f + m.Unlock() + C.CgoWebViewDispatch(w.w, C.uintptr_t(index)) +} + +func (w *webview) SetTitle(title string) { + p := C.CString(title) + defer C.free(unsafe.Pointer(p)) + C.CgoWebViewSetTitle(w.w, p) +} + +func (w *webview) SetColor(r, g, b, a uint8) { + C.CgoWebViewSetColor(w.w, C.uint8_t(r), C.uint8_t(g), C.uint8_t(b), C.uint8_t(a)) +} + +func (w *webview) SetFullscreen(fullscreen bool) { + C.CgoWebViewSetFullscreen(w.w, C.int(boolToInt(fullscreen))) +} + +func (w *webview) Dialog(dlgType DialogType, flags int, title string, arg string) string { + const maxPath = 4096 + titlePtr := C.CString(title) + defer C.free(unsafe.Pointer(titlePtr)) + argPtr := C.CString(arg) + defer C.free(unsafe.Pointer(argPtr)) + resultPtr := (*C.char)(C.calloc((C.size_t)(unsafe.Sizeof((*C.char)(nil))), (C.size_t)(maxPath))) + defer C.free(unsafe.Pointer(resultPtr)) + C.CgoDialog(w.w, C.int(dlgType), C.int(flags), titlePtr, + argPtr, resultPtr, C.size_t(maxPath)) + return C.GoString(resultPtr) +} + +func (w *webview) Eval(js string) error { + p := C.CString(js) + defer C.free(unsafe.Pointer(p)) + switch C.CgoWebViewEval(w.w, p) { + case -1: + return errors.New("evaluation failed") + } + return nil +} + +func (w *webview) InjectCSS(css string) { + p := C.CString(css) + defer C.free(unsafe.Pointer(p)) + C.CgoWebViewInjectCSS(w.w, p) +} + +func (w *webview) Terminate() { + C.CgoWebViewTerminate(w.w) +} + +//export _webviewDispatchGoCallback +func _webviewDispatchGoCallback(index unsafe.Pointer) { + var f func() + m.Lock() + f = fns[uintptr(index)] + delete(fns, uintptr(index)) + m.Unlock() + f() +} + +//export _webviewExternalInvokeCallback +func _webviewExternalInvokeCallback(w unsafe.Pointer, data unsafe.Pointer) { + m.Lock() + var ( + cb ExternalInvokeCallbackFunc + wv WebView + ) + for wv, cb = range cbs { + if wv.(*webview).w == w { + break + } + } + m.Unlock() + cb(wv, C.GoString((*C.char)(data))) +} + +var bindTmpl = template.Must(template.New("").Parse(` +if (typeof {{.Name}} === 'undefined') { + {{.Name}} = {}; +} +{{ range .Methods }} +{{$.Name}}.{{.JSName}} = function({{.JSArgs}}) { + window.external.invoke(JSON.stringify({scope: "{{$.Name}}", method: "{{.Name}}", params: [{{.JSArgs}}]})); +}; +{{ end }} +`)) + +type binding struct { + Value interface{} + Name string + Methods []methodInfo +} + +func newBinding(name string, v interface{}) (*binding, error) { + methods, err := getMethods(v) + if err != nil { + return nil, err + } + return &binding{Name: name, Value: v, Methods: methods}, nil +} + +func (b *binding) JS() (string, error) { + js := &bytes.Buffer{} + err := bindTmpl.Execute(js, b) + return js.String(), err +} + +func (b *binding) Sync() (string, error) { + js, err := json.Marshal(b.Value) + if err == nil { + return fmt.Sprintf("%[1]s.data=%[2]s;if(%[1]s.render){%[1]s.render(%[2]s);}", b.Name, string(js)), nil + } + return "", err +} + +func (b *binding) Call(js string) bool { + type rpcCall struct { + Scope string `json:"scope"` + Method string `json:"method"` + Params []interface{} `json:"params"` + } + + rpc := rpcCall{} + if err := json.Unmarshal([]byte(js), &rpc); err != nil { + return false + } + if rpc.Scope != b.Name { + return false + } + var mi *methodInfo + for i := 0; i < len(b.Methods); i++ { + if b.Methods[i].Name == rpc.Method { + mi = &b.Methods[i] + break + } + } + if mi == nil { + return false + } + args := make([]reflect.Value, mi.Arity(), mi.Arity()) + for i := 0; i < mi.Arity(); i++ { + val := reflect.ValueOf(rpc.Params[i]) + arg := mi.Value.Type().In(i) + u := reflect.New(arg) + if b, err := json.Marshal(val.Interface()); err == nil { + if err = json.Unmarshal(b, u.Interface()); err == nil { + args[i] = reflect.Indirect(u) + } + } + if !args[i].IsValid() { + return false + } + } + mi.Value.Call(args) + return true +} + +type methodInfo struct { + Name string + Value reflect.Value +} + +func (mi methodInfo) Arity() int { return mi.Value.Type().NumIn() } + +func (mi methodInfo) JSName() string { + r := []rune(mi.Name) + if len(r) > 0 { + r[0] = unicode.ToLower(r[0]) + } + return string(r) +} + +func (mi methodInfo) JSArgs() (js string) { + for i := 0; i < mi.Arity(); i++ { + if i > 0 { + js = js + "," + } + js = js + fmt.Sprintf("a%d", i) + } + return js +} + +func getMethods(obj interface{}) ([]methodInfo, error) { + p := reflect.ValueOf(obj) + v := reflect.Indirect(p) + t := reflect.TypeOf(obj) + if t == nil { + return nil, errors.New("object can not be nil") + } + k := t.Kind() + if k == reflect.Ptr { + k = v.Type().Kind() + } + if k != reflect.Struct { + return nil, errors.New("must be a struct or a pointer to a struct") + } + + methods := []methodInfo{} + for i := 0; i < t.NumMethod(); i++ { + method := t.Method(i) + if !unicode.IsUpper([]rune(method.Name)[0]) { + continue + } + mi := methodInfo{ + Name: method.Name, + Value: p.MethodByName(method.Name), + } + methods = append(methods, mi) + } + + return methods, nil +} + +func (w *webview) Bind(name string, v interface{}) (sync func(), err error) { + b, err := newBinding(name, v) + if err != nil { + return nil, err + } + js, err := b.JS() + if err != nil { + return nil, err + } + sync = func() { + if js, err := b.Sync(); err != nil { + log.Println(err) + } else { + w.Eval(js) + } + } + + m.Lock() + cb := cbs[w] + cbs[w] = func(w WebView, data string) { + if ok := b.Call(data); ok { + sync() + } else { + cb(w, data) + } + } + m.Unlock() + + w.Eval(js) + sync() + return sync, nil +} diff --git a/vendor/github.com/zserge/webview/webview.h b/vendor/github.com/zserge/webview/webview.h new file mode 100644 index 000000000..b2a6f83d5 --- /dev/null +++ b/vendor/github.com/zserge/webview/webview.h @@ -0,0 +1,2265 @@ +/* + * 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 +#include +#include + +#if defined(WEBVIEW_GTK) +#include +#include +#include + +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 + +#include +#include +#include +#include +#include + +#include + +struct webview_priv { + HWND hwnd; + IOleObject **browser; + BOOL is_fullscreen; + DWORD saved_style; + DWORD saved_ex_style; + RECT saved_rect; +}; +#elif defined(WEBVIEW_COCOA) +#include +#include +#include + +struct webview_priv { + id pool; + id window; + id webview; + id windowDelegate; + int should_exit; +}; +#else +#error "Define one of: WEBVIEW_GTK, WEBVIEW_COCOA or WEBVIEW_WINAPI" +#endif + +struct webview; + +typedef void (*webview_external_invoke_cb_t)(struct webview *w, + const char *arg); + +struct webview { + const char *url; + const char *title; + int width; + int height; + int resizable; + int debug; + webview_external_invoke_cb_t external_invoke_cb; + struct webview_priv priv; + void *userdata; +}; + +enum webview_dialog_type { + WEBVIEW_DIALOG_TYPE_OPEN = 0, + WEBVIEW_DIALOG_TYPE_SAVE = 1, + WEBVIEW_DIALOG_TYPE_ALERT = 2 +}; + +#define WEBVIEW_DIALOG_FLAG_FILE (0 << 0) +#define WEBVIEW_DIALOG_FLAG_DIRECTORY (1 << 0) + +#define WEBVIEW_DIALOG_FLAG_INFO (1 << 1) +#define WEBVIEW_DIALOG_FLAG_WARNING (2 << 1) +#define WEBVIEW_DIALOG_FLAG_ERROR (3 << 1) +#define WEBVIEW_DIALOG_FLAG_ALERT_MASK (3 << 1) + +typedef void (*webview_dispatch_fn)(struct webview *w, void *arg); + +struct webview_dispatch_arg { + webview_dispatch_fn fn; + struct webview *w; + void *arg; +}; + +#define DEFAULT_URL \ + "data:text/" \ + "html,%3C%21DOCTYPE%20html%3E%0A%3Chtml%20lang=%22en%22%3E%0A%3Chead%3E%" \ + "3Cmeta%20charset=%22utf-8%22%3E%3Cmeta%20http-equiv=%22X-UA-Compatible%22%" \ + "20content=%22IE=edge%22%3E%3C%2Fhead%3E%0A%3Cbody%3E%3Cdiv%20id=%22app%22%" \ + "3E%3C%2Fdiv%3E%3Cscript%20type=%22text%2Fjavascript%22%3E%3C%2Fscript%3E%" \ + "3C%2Fbody%3E%0A%3C%2Fhtml%3E" + +#define CSS_INJECT_FUNCTION \ + "(function(e){var " \ + "t=document.createElement('style'),d=document.head||document." \ + "getElementsByTagName('head')[0];t.setAttribute('type','text/" \ + "css'),t.styleSheet?t.styleSheet.cssText=e:t.appendChild(document." \ + "createTextNode(e)),d.appendChild(t)})" + +static const char *webview_check_url(const char *url) { + if (url == NULL || strlen(url) == 0) { + return DEFAULT_URL; + } + return url; +} + +WEBVIEW_API int webview(const char *title, const char *url, int width, + int height, int resizable); + +WEBVIEW_API int webview_init(struct webview *w); +WEBVIEW_API int webview_loop(struct webview *w, int blocking); +WEBVIEW_API int webview_eval(struct webview *w, const char *js); +WEBVIEW_API int webview_inject_css(struct webview *w, const char *css); +WEBVIEW_API void webview_set_title(struct webview *w, const char *title); +WEBVIEW_API void webview_set_fullscreen(struct webview *w, int fullscreen); +WEBVIEW_API void webview_set_color(struct webview *w, uint8_t r, uint8_t g, + uint8_t b, uint8_t a); +WEBVIEW_API void webview_dialog(struct webview *w, + enum webview_dialog_type dlgtype, int flags, + const char *title, const char *arg, + char *result, size_t resultsz); +WEBVIEW_API void webview_dispatch(struct webview *w, webview_dispatch_fn fn, + void *arg); +WEBVIEW_API void webview_terminate(struct webview *w); +WEBVIEW_API void webview_exit(struct webview *w); +WEBVIEW_API void webview_debug(const char *format, ...); +WEBVIEW_API void webview_print_log(const char *s); + +#ifdef WEBVIEW_IMPLEMENTATION +#undef WEBVIEW_IMPLEMENTATION + +WEBVIEW_API int webview(const char *title, const char *url, int width, + int height, int resizable) { + struct webview webview; + 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 { + IInternetSecurityManager mgr; +} _IInternetSecurityManagerEx; + +typedef struct { + IServiceProvider provider; + _IInternetSecurityManagerEx mgr; +} _IServiceProviderEx; + +typedef struct { + IOleClientSite client; + _IOleInPlaceSiteEx inplace; + _IDocHostUIHandlerEx ui; + IDispatch external; + _IServiceProviderEx provider; +} _IOleClientSiteEx; + +#ifdef __cplusplus +#define iid_ref(x) &(x) +#define iid_unref(x) *(x) +#else +#define iid_ref(x) (x) +#define iid_unref(x) (x) +#endif + +static inline WCHAR *webview_to_utf16(const char *s) { + DWORD size = MultiByteToWideChar(CP_UTF8, 0, s, -1, 0, 0); + WCHAR *ws = (WCHAR *)GlobalAlloc(GMEM_FIXED, sizeof(WCHAR) * size); + if (ws == NULL) { + return NULL; + } + MultiByteToWideChar(CP_UTF8, 0, s, -1, ws, size); + return ws; +} + +static inline char *webview_from_utf16(WCHAR *ws) { + int n = WideCharToMultiByte(CP_UTF8, 0, ws, -1, NULL, 0, NULL, NULL); + char *s = (char *)GlobalAlloc(GMEM_FIXED, n); + if (s == NULL) { + return NULL; + } + WideCharToMultiByte(CP_UTF8, 0, ws, -1, s, n, NULL, NULL); + return s; +} + +static int iid_eq(REFIID a, const IID *b) { + return memcmp((const void *)iid_ref(a), (const void *)b, sizeof(GUID)) == 0; +} + +static HRESULT STDMETHODCALLTYPE JS_QueryInterface(IDispatch FAR *This, + REFIID riid, + LPVOID FAR *ppvObj) { + if (iid_eq(riid, &IID_IDispatch)) { + *ppvObj = This; + return S_OK; + } + *ppvObj = 0; + return E_NOINTERFACE; +} +static ULONG STDMETHODCALLTYPE JS_AddRef(IDispatch FAR *This) { return 1; } +static ULONG STDMETHODCALLTYPE JS_Release(IDispatch FAR *This) { return 1; } +static HRESULT STDMETHODCALLTYPE JS_GetTypeInfoCount(IDispatch FAR *This, + UINT *pctinfo) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE JS_GetTypeInfo(IDispatch FAR *This, + UINT iTInfo, LCID lcid, + ITypeInfo **ppTInfo) { + return S_OK; +} +#define WEBVIEW_JS_INVOKE_ID 0x1000 +static HRESULT STDMETHODCALLTYPE JS_GetIDsOfNames(IDispatch FAR *This, + REFIID riid, + LPOLESTR *rgszNames, + UINT cNames, LCID lcid, + DISPID *rgDispId) { + if (cNames != 1) { + return S_FALSE; + } + if (wcscmp(rgszNames[0], L"invoke") == 0) { + rgDispId[0] = WEBVIEW_JS_INVOKE_ID; + return S_OK; + } + return S_FALSE; +} + +static HRESULT STDMETHODCALLTYPE +JS_Invoke(IDispatch FAR *This, DISPID dispIdMember, REFIID riid, LCID lcid, + WORD wFlags, DISPPARAMS *pDispParams, VARIANT *pVarResult, + EXCEPINFO *pExcepInfo, UINT *puArgErr) { + size_t offset = (size_t) & ((_IOleClientSiteEx *)NULL)->external; + _IOleClientSiteEx *ex = (_IOleClientSiteEx *)((char *)(This)-offset); + struct webview *w = (struct webview *)GetWindowLongPtr( + ex->inplace.frame.window, GWLP_USERDATA); + if (pDispParams->cArgs == 1 && pDispParams->rgvarg[0].vt == VT_BSTR) { + BSTR bstr = pDispParams->rgvarg[0].bstrVal; + char *s = webview_from_utf16(bstr); + if (s != NULL) { + if (dispIdMember == WEBVIEW_JS_INVOKE_ID) { + if (w->external_invoke_cb != NULL) { + w->external_invoke_cb(w, s); + } + } else { + return S_FALSE; + } + GlobalFree(s); + } + } + return S_OK; +} + +static IDispatchVtbl ExternalDispatchTable = { + JS_QueryInterface, JS_AddRef, JS_Release, JS_GetTypeInfoCount, + JS_GetTypeInfo, JS_GetIDsOfNames, JS_Invoke}; + +static ULONG STDMETHODCALLTYPE Site_AddRef(IOleClientSite FAR *This) { + return 1; +} +static ULONG STDMETHODCALLTYPE Site_Release(IOleClientSite FAR *This) { + return 1; +} +static HRESULT STDMETHODCALLTYPE Site_SaveObject(IOleClientSite FAR *This) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE Site_GetMoniker(IOleClientSite FAR *This, + DWORD dwAssign, + DWORD dwWhichMoniker, + IMoniker **ppmk) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE +Site_GetContainer(IOleClientSite FAR *This, LPOLECONTAINER FAR *ppContainer) { + *ppContainer = 0; + return E_NOINTERFACE; +} +static HRESULT STDMETHODCALLTYPE Site_ShowObject(IOleClientSite FAR *This) { + return NOERROR; +} +static HRESULT STDMETHODCALLTYPE Site_OnShowWindow(IOleClientSite FAR *This, + BOOL fShow) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE +Site_RequestNewObjectLayout(IOleClientSite FAR *This) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE Site_QueryInterface(IOleClientSite FAR *This, + REFIID riid, + void **ppvObject) { + if (iid_eq(riid, &IID_IUnknown) || iid_eq(riid, &IID_IOleClientSite)) { + *ppvObject = &((_IOleClientSiteEx *)This)->client; + } else if (iid_eq(riid, &IID_IOleInPlaceSite)) { + *ppvObject = &((_IOleClientSiteEx *)This)->inplace; + } else if (iid_eq(riid, &IID_IDocHostUIHandler)) { + *ppvObject = &((_IOleClientSiteEx *)This)->ui; + } else if (iid_eq(riid, &IID_IServiceProvider)) { + *ppvObject = &((_IOleClientSiteEx *)This)->provider; + } else { + *ppvObject = 0; + return (E_NOINTERFACE); + } + return S_OK; +} +static HRESULT STDMETHODCALLTYPE InPlace_QueryInterface( + IOleInPlaceSite FAR *This, REFIID riid, LPVOID FAR *ppvObj) { + return (Site_QueryInterface( + (IOleClientSite *)((char *)This - sizeof(IOleClientSite)), riid, ppvObj)); +} +static ULONG STDMETHODCALLTYPE InPlace_AddRef(IOleInPlaceSite FAR *This) { + return 1; +} +static ULONG STDMETHODCALLTYPE InPlace_Release(IOleInPlaceSite FAR *This) { + return 1; +} +static HRESULT STDMETHODCALLTYPE InPlace_GetWindow(IOleInPlaceSite FAR *This, + HWND FAR *lphwnd) { + *lphwnd = ((_IOleInPlaceSiteEx FAR *)This)->frame.window; + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +InPlace_ContextSensitiveHelp(IOleInPlaceSite FAR *This, BOOL fEnterMode) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE +InPlace_CanInPlaceActivate(IOleInPlaceSite FAR *This) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +InPlace_OnInPlaceActivate(IOleInPlaceSite FAR *This) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +InPlace_OnUIActivate(IOleInPlaceSite FAR *This) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE InPlace_GetWindowContext( + IOleInPlaceSite FAR *This, LPOLEINPLACEFRAME FAR *lplpFrame, + LPOLEINPLACEUIWINDOW FAR *lplpDoc, LPRECT lprcPosRect, LPRECT lprcClipRect, + LPOLEINPLACEFRAMEINFO lpFrameInfo) { + *lplpFrame = (LPOLEINPLACEFRAME) & ((_IOleInPlaceSiteEx *)This)->frame; + *lplpDoc = 0; + lpFrameInfo->fMDIApp = FALSE; + lpFrameInfo->hwndFrame = ((_IOleInPlaceFrameEx *)*lplpFrame)->window; + lpFrameInfo->haccel = 0; + lpFrameInfo->cAccelEntries = 0; + return S_OK; +} +static HRESULT STDMETHODCALLTYPE InPlace_Scroll(IOleInPlaceSite FAR *This, + SIZE scrollExtent) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE +InPlace_OnUIDeactivate(IOleInPlaceSite FAR *This, BOOL fUndoable) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +InPlace_OnInPlaceDeactivate(IOleInPlaceSite FAR *This) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +InPlace_DiscardUndoState(IOleInPlaceSite FAR *This) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE +InPlace_DeactivateAndUndo(IOleInPlaceSite FAR *This) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE +InPlace_OnPosRectChange(IOleInPlaceSite FAR *This, LPCRECT lprcPosRect) { + IOleObject *browserObject; + IOleInPlaceObject *inplace; + browserObject = *((IOleObject **)((char *)This - sizeof(IOleObject *) - + sizeof(IOleClientSite))); + if (!browserObject->lpVtbl->QueryInterface(browserObject, + iid_unref(&IID_IOleInPlaceObject), + (void **)&inplace)) { + inplace->lpVtbl->SetObjectRects(inplace, lprcPosRect, lprcPosRect); + inplace->lpVtbl->Release(inplace); + } + return S_OK; +} +static HRESULT STDMETHODCALLTYPE Frame_QueryInterface( + IOleInPlaceFrame FAR *This, REFIID riid, LPVOID FAR *ppvObj) { + return E_NOTIMPL; +} +static ULONG STDMETHODCALLTYPE Frame_AddRef(IOleInPlaceFrame FAR *This) { + return 1; +} +static ULONG STDMETHODCALLTYPE Frame_Release(IOleInPlaceFrame FAR *This) { + return 1; +} +static HRESULT STDMETHODCALLTYPE Frame_GetWindow(IOleInPlaceFrame FAR *This, + HWND FAR *lphwnd) { + *lphwnd = ((_IOleInPlaceFrameEx *)This)->window; + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +Frame_ContextSensitiveHelp(IOleInPlaceFrame FAR *This, BOOL fEnterMode) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE Frame_GetBorder(IOleInPlaceFrame FAR *This, + LPRECT lprectBorder) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE Frame_RequestBorderSpace( + IOleInPlaceFrame FAR *This, LPCBORDERWIDTHS pborderwidths) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE Frame_SetBorderSpace( + IOleInPlaceFrame FAR *This, LPCBORDERWIDTHS pborderwidths) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE Frame_SetActiveObject( + IOleInPlaceFrame FAR *This, IOleInPlaceActiveObject *pActiveObject, + LPCOLESTR pszObjName) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +Frame_InsertMenus(IOleInPlaceFrame FAR *This, HMENU hmenuShared, + LPOLEMENUGROUPWIDTHS lpMenuWidths) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE Frame_SetMenu(IOleInPlaceFrame FAR *This, + HMENU hmenuShared, + HOLEMENU holemenu, + HWND hwndActiveObject) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE Frame_RemoveMenus(IOleInPlaceFrame FAR *This, + HMENU hmenuShared) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE Frame_SetStatusText(IOleInPlaceFrame FAR *This, + LPCOLESTR pszStatusText) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +Frame_EnableModeless(IOleInPlaceFrame FAR *This, BOOL fEnable) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +Frame_TranslateAccelerator(IOleInPlaceFrame FAR *This, LPMSG lpmsg, WORD wID) { + return E_NOTIMPL; +} +static HRESULT STDMETHODCALLTYPE UI_QueryInterface(IDocHostUIHandler FAR *This, + REFIID riid, + LPVOID FAR *ppvObj) { + return (Site_QueryInterface((IOleClientSite *)((char *)This - + sizeof(IOleClientSite) - + sizeof(_IOleInPlaceSiteEx)), + riid, ppvObj)); +} +static ULONG STDMETHODCALLTYPE UI_AddRef(IDocHostUIHandler FAR *This) { + return 1; +} +static ULONG STDMETHODCALLTYPE UI_Release(IDocHostUIHandler FAR *This) { + return 1; +} +static HRESULT STDMETHODCALLTYPE UI_ShowContextMenu( + IDocHostUIHandler FAR *This, DWORD dwID, POINT __RPC_FAR *ppt, + IUnknown __RPC_FAR *pcmdtReserved, IDispatch __RPC_FAR *pdispReserved) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +UI_GetHostInfo(IDocHostUIHandler FAR *This, DOCHOSTUIINFO __RPC_FAR *pInfo) { + pInfo->cbSize = sizeof(DOCHOSTUIINFO); + pInfo->dwFlags = DOCHOSTUIFLAG_NO3DBORDER; + pInfo->dwDoubleClick = DOCHOSTUIDBLCLK_DEFAULT; + return S_OK; +} +static HRESULT STDMETHODCALLTYPE UI_ShowUI( + IDocHostUIHandler FAR *This, DWORD dwID, + IOleInPlaceActiveObject __RPC_FAR *pActiveObject, + IOleCommandTarget __RPC_FAR *pCommandTarget, + IOleInPlaceFrame __RPC_FAR *pFrame, IOleInPlaceUIWindow __RPC_FAR *pDoc) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE UI_HideUI(IDocHostUIHandler FAR *This) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE UI_UpdateUI(IDocHostUIHandler FAR *This) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE UI_EnableModeless(IDocHostUIHandler FAR *This, + BOOL fEnable) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +UI_OnDocWindowActivate(IDocHostUIHandler FAR *This, BOOL fActivate) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +UI_OnFrameWindowActivate(IDocHostUIHandler FAR *This, BOOL fActivate) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +UI_ResizeBorder(IDocHostUIHandler FAR *This, LPCRECT prcBorder, + IOleInPlaceUIWindow __RPC_FAR *pUIWindow, BOOL fRameWindow) { + return S_OK; +} +static HRESULT STDMETHODCALLTYPE +UI_TranslateAccelerator(IDocHostUIHandler FAR *This, LPMSG lpMsg, + const GUID __RPC_FAR *pguidCmdGroup, DWORD nCmdID) { + return S_FALSE; +} +static HRESULT STDMETHODCALLTYPE UI_GetOptionKeyPath( + IDocHostUIHandler FAR *This, LPOLESTR __RPC_FAR *pchKey, DWORD dw) { + return S_FALSE; +} +static HRESULT STDMETHODCALLTYPE UI_GetDropTarget( + IDocHostUIHandler FAR *This, IDropTarget __RPC_FAR *pDropTarget, + IDropTarget __RPC_FAR *__RPC_FAR *ppDropTarget) { + return S_FALSE; +} +static HRESULT STDMETHODCALLTYPE UI_GetExternal( + IDocHostUIHandler FAR *This, IDispatch __RPC_FAR *__RPC_FAR *ppDispatch) { + *ppDispatch = (IDispatch *)(This + 1); + return S_OK; +} +static HRESULT STDMETHODCALLTYPE UI_TranslateUrl( + IDocHostUIHandler FAR *This, DWORD dwTranslate, OLECHAR __RPC_FAR *pchURLIn, + OLECHAR __RPC_FAR *__RPC_FAR *ppchURLOut) { + *ppchURLOut = 0; + return S_FALSE; +} +static HRESULT STDMETHODCALLTYPE +UI_FilterDataObject(IDocHostUIHandler FAR *This, IDataObject __RPC_FAR *pDO, + IDataObject __RPC_FAR *__RPC_FAR *ppDORet) { + *ppDORet = 0; + return S_FALSE; +} + +static const TCHAR *classname = "WebView"; +static const SAFEARRAYBOUND ArrayBound = {1, 0}; + +static IOleClientSiteVtbl MyIOleClientSiteTable = { + Site_QueryInterface, Site_AddRef, Site_Release, + Site_SaveObject, Site_GetMoniker, Site_GetContainer, + Site_ShowObject, Site_OnShowWindow, Site_RequestNewObjectLayout}; +static IOleInPlaceSiteVtbl MyIOleInPlaceSiteTable = { + InPlace_QueryInterface, + InPlace_AddRef, + InPlace_Release, + InPlace_GetWindow, + InPlace_ContextSensitiveHelp, + InPlace_CanInPlaceActivate, + InPlace_OnInPlaceActivate, + InPlace_OnUIActivate, + InPlace_GetWindowContext, + InPlace_Scroll, + InPlace_OnUIDeactivate, + InPlace_OnInPlaceDeactivate, + InPlace_DiscardUndoState, + InPlace_DeactivateAndUndo, + InPlace_OnPosRectChange}; + +static IOleInPlaceFrameVtbl MyIOleInPlaceFrameTable = { + Frame_QueryInterface, + Frame_AddRef, + Frame_Release, + Frame_GetWindow, + Frame_ContextSensitiveHelp, + Frame_GetBorder, + Frame_RequestBorderSpace, + Frame_SetBorderSpace, + Frame_SetActiveObject, + Frame_InsertMenus, + Frame_SetMenu, + Frame_RemoveMenus, + Frame_SetStatusText, + Frame_EnableModeless, + Frame_TranslateAccelerator}; + +static IDocHostUIHandlerVtbl MyIDocHostUIHandlerTable = { + UI_QueryInterface, + UI_AddRef, + UI_Release, + UI_ShowContextMenu, + UI_GetHostInfo, + UI_ShowUI, + UI_HideUI, + UI_UpdateUI, + UI_EnableModeless, + UI_OnDocWindowActivate, + UI_OnFrameWindowActivate, + UI_ResizeBorder, + UI_TranslateAccelerator, + UI_GetOptionKeyPath, + UI_GetDropTarget, + UI_GetExternal, + UI_TranslateUrl, + UI_FilterDataObject}; + + + +static HRESULT STDMETHODCALLTYPE IS_QueryInterface(IInternetSecurityManager FAR *This, REFIID riid, void **ppvObject) { + return E_NOTIMPL; +} +static ULONG STDMETHODCALLTYPE IS_AddRef(IInternetSecurityManager FAR *This) { return 1; } +static ULONG STDMETHODCALLTYPE IS_Release(IInternetSecurityManager FAR *This) { return 1; } +static HRESULT STDMETHODCALLTYPE IS_SetSecuritySite(IInternetSecurityManager FAR *This, IInternetSecurityMgrSite *pSited) { + return INET_E_DEFAULT_ACTION; +} +static HRESULT STDMETHODCALLTYPE IS_GetSecuritySite(IInternetSecurityManager FAR *This, IInternetSecurityMgrSite **ppSite) { + return INET_E_DEFAULT_ACTION; +} +static HRESULT STDMETHODCALLTYPE IS_MapUrlToZone(IInternetSecurityManager FAR *This, LPCWSTR pwszUrl, DWORD *pdwZone, DWORD dwFlags) { + *pdwZone = URLZONE_LOCAL_MACHINE; + return S_OK; +} +static HRESULT STDMETHODCALLTYPE IS_GetSecurityId(IInternetSecurityManager FAR *This, LPCWSTR pwszUrl, BYTE *pbSecurityId, DWORD *pcbSecurityId, DWORD_PTR dwReserved) { + return INET_E_DEFAULT_ACTION; +} +static HRESULT STDMETHODCALLTYPE IS_ProcessUrlAction(IInternetSecurityManager FAR *This, LPCWSTR pwszUrl, DWORD dwAction, BYTE *pPolicy, DWORD cbPolicy, BYTE *pContext, DWORD cbContext, DWORD dwFlags, DWORD dwReserved) { + return INET_E_DEFAULT_ACTION; +} +static HRESULT STDMETHODCALLTYPE IS_QueryCustomPolicy(IInternetSecurityManager FAR *This, LPCWSTR pwszUrl, REFGUID guidKey, BYTE **ppPolicy, DWORD *pcbPolicy, BYTE *pContext, DWORD cbContext, DWORD dwReserved) { + return INET_E_DEFAULT_ACTION; +} +static HRESULT STDMETHODCALLTYPE IS_SetZoneMapping(IInternetSecurityManager FAR *This, DWORD dwZone, LPCWSTR lpszPattern, DWORD dwFlags) { + return INET_E_DEFAULT_ACTION; +} +static HRESULT STDMETHODCALLTYPE IS_GetZoneMappings(IInternetSecurityManager FAR *This, DWORD dwZone, IEnumString **ppenumString, DWORD dwFlags) { + return INET_E_DEFAULT_ACTION; +} +static IInternetSecurityManagerVtbl MyInternetSecurityManagerTable = {IS_QueryInterface, IS_AddRef, IS_Release, IS_SetSecuritySite, IS_GetSecuritySite, IS_MapUrlToZone, IS_GetSecurityId, IS_ProcessUrlAction, IS_QueryCustomPolicy, IS_SetZoneMapping, IS_GetZoneMappings}; + +static HRESULT STDMETHODCALLTYPE SP_QueryInterface(IServiceProvider FAR *This, REFIID riid, void **ppvObject) { + return (Site_QueryInterface( + (IOleClientSite *)((char *)This - sizeof(IOleClientSite) - sizeof(_IOleInPlaceSiteEx) - sizeof(_IDocHostUIHandlerEx) - sizeof(IDispatch)), riid, ppvObject)); +} +static ULONG STDMETHODCALLTYPE SP_AddRef(IServiceProvider FAR *This) { return 1; } +static ULONG STDMETHODCALLTYPE SP_Release(IServiceProvider FAR *This) { return 1; } +static HRESULT STDMETHODCALLTYPE SP_QueryService(IServiceProvider FAR *This, REFGUID siid, REFIID riid, void **ppvObject) { + if (iid_eq(siid, &IID_IInternetSecurityManager) && iid_eq(riid, &IID_IInternetSecurityManager)) { + *ppvObject = &((_IServiceProviderEx *)This)->mgr; + } else { + *ppvObject = 0; + return (E_NOINTERFACE); + } + return S_OK; +} +static IServiceProviderVtbl MyServiceProviderTable = {SP_QueryInterface, SP_AddRef, SP_Release, SP_QueryService}; + +static void UnEmbedBrowserObject(struct webview *w) { + if (w->priv.browser != NULL) { + (*w->priv.browser)->lpVtbl->Close(*w->priv.browser, OLECLOSE_NOSAVE); + (*w->priv.browser)->lpVtbl->Release(*w->priv.browser); + GlobalFree(w->priv.browser); + w->priv.browser = NULL; + } +} + +static int EmbedBrowserObject(struct webview *w) { + RECT rect; + IWebBrowser2 *webBrowser2 = NULL; + LPCLASSFACTORY pClassFactory = NULL; + _IOleClientSiteEx *_iOleClientSiteEx = NULL; + IOleObject **browser = (IOleObject **)GlobalAlloc( + GMEM_FIXED, sizeof(IOleObject *) + sizeof(_IOleClientSiteEx)); + if (browser == NULL) { + goto error; + } + w->priv.browser = browser; + + _iOleClientSiteEx = (_IOleClientSiteEx *)(browser + 1); + _iOleClientSiteEx->client.lpVtbl = &MyIOleClientSiteTable; + _iOleClientSiteEx->inplace.inplace.lpVtbl = &MyIOleInPlaceSiteTable; + _iOleClientSiteEx->inplace.frame.frame.lpVtbl = &MyIOleInPlaceFrameTable; + _iOleClientSiteEx->inplace.frame.window = w->priv.hwnd; + _iOleClientSiteEx->ui.ui.lpVtbl = &MyIDocHostUIHandlerTable; + _iOleClientSiteEx->external.lpVtbl = &ExternalDispatchTable; + _iOleClientSiteEx->provider.provider.lpVtbl = &MyServiceProviderTable; + _iOleClientSiteEx->provider.mgr.mgr.lpVtbl = &MyInternetSecurityManagerTable; + + if (CoGetClassObject(iid_unref(&CLSID_WebBrowser), + CLSCTX_INPROC_SERVER | CLSCTX_INPROC_HANDLER, NULL, + iid_unref(&IID_IClassFactory), + (void **)&pClassFactory) != S_OK) { + goto error; + } + + if (pClassFactory == NULL) { + goto error; + } + + if (pClassFactory->lpVtbl->CreateInstance(pClassFactory, 0, + iid_unref(&IID_IOleObject), + (void **)browser) != S_OK) { + goto error; + } + pClassFactory->lpVtbl->Release(pClassFactory); + if ((*browser)->lpVtbl->SetClientSite( + *browser, (IOleClientSite *)_iOleClientSiteEx) != S_OK) { + goto error; + } + (*browser)->lpVtbl->SetHostNames(*browser, L"My Host Name", 0); + + if (OleSetContainedObject((struct IUnknown *)(*browser), TRUE) != S_OK) { + goto error; + } + GetClientRect(w->priv.hwnd, &rect); + if ((*browser)->lpVtbl->DoVerb((*browser), OLEIVERB_SHOW, NULL, + (IOleClientSite *)_iOleClientSiteEx, -1, + w->priv.hwnd, &rect) != S_OK) { + goto error; + } + if ((*browser)->lpVtbl->QueryInterface((*browser), + iid_unref(&IID_IWebBrowser2), + (void **)&webBrowser2) != S_OK) { + goto error; + } + + webBrowser2->lpVtbl->put_Left(webBrowser2, 0); + webBrowser2->lpVtbl->put_Top(webBrowser2, 0); + webBrowser2->lpVtbl->put_Width(webBrowser2, rect.right); + webBrowser2->lpVtbl->put_Height(webBrowser2, rect.bottom); + webBrowser2->lpVtbl->Release(webBrowser2); + + return 0; +error: + UnEmbedBrowserObject(w); + if (pClassFactory != NULL) { + pClassFactory->lpVtbl->Release(pClassFactory); + } + if (browser != NULL) { + GlobalFree(browser); + } + return -1; +} + +#define WEBVIEW_DATA_URL_PREFIX "data:text/html," +static int DisplayHTMLPage(struct webview *w) { + IWebBrowser2 *webBrowser2; + VARIANT myURL; + LPDISPATCH lpDispatch; + IHTMLDocument2 *htmlDoc2; + BSTR bstr; + IOleObject *browserObject; + SAFEARRAY *sfArray; + VARIANT *pVar; + browserObject = *w->priv.browser; + int isDataURL = 0; + const char *webview_url = webview_check_url(w->url); + if (!browserObject->lpVtbl->QueryInterface( + browserObject, iid_unref(&IID_IWebBrowser2), (void **)&webBrowser2)) { + LPCSTR webPageName; + isDataURL = (strncmp(webview_url, WEBVIEW_DATA_URL_PREFIX, + strlen(WEBVIEW_DATA_URL_PREFIX)) == 0); + 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, + ¶ms, &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) { + DestroyWindow(w->priv.hwnd); + OleUninitialize(); +} + +WEBVIEW_API void webview_print_log(const char *s) { OutputDebugString(s); } + +#endif /* WEBVIEW_WINAPI */ + +#if defined(WEBVIEW_COCOA) +#define NSAlertStyleWarning 0 +#define NSAlertStyleCritical 2 +#define NSWindowStyleMaskResizable 8 +#define NSWindowStyleMaskMiniaturizable 4 +#define NSWindowStyleMaskTitled 1 +#define NSWindowStyleMaskClosable 2 +#define NSWindowStyleMaskFullScreen (1 << 14) +#define NSViewWidthSizable 2 +#define NSViewHeightSizable 16 +#define NSBackingStoreBuffered 2 +#define NSEventMaskAny ULONG_MAX +#define NSEventModifierFlagCommand (1 << 20) +#define NSEventModifierFlagOption (1 << 19) +#define NSAlertStyleInformational 1 +#define NSAlertFirstButtonReturn 1000 +#define WKNavigationActionPolicyDownload 2 +#define NSModalResponseOK 1 +#define WKNavigationActionPolicyDownload 2 +#define WKNavigationResponsePolicyAllow 1 +#define WKUserScriptInjectionTimeAtDocumentStart 0 +#define NSApplicationActivationPolicyRegular 0 + +static id get_nsstring(const char *c_str) { + return objc_msgSend((id)objc_getClass("NSString"), + sel_registerName("stringWithUTF8String:"), c_str); +} + +static id create_menu_item(id title, const char *action, const char *key) { + id item = + objc_msgSend((id)objc_getClass("NSMenuItem"), sel_registerName("alloc")); + objc_msgSend(item, sel_registerName("initWithTitle:action:keyEquivalent:"), + title, sel_registerName(action), get_nsstring(key)); + objc_msgSend(item, sel_registerName("autorelease")); + + return item; +} + +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 void webview_external_invoke(id self, SEL cmd, id contentController, + id message) { + struct webview *w = + (struct webview *)objc_getAssociatedObject(contentController, "webview"); + if (w == NULL || w->external_invoke_cb == NULL) { + return; + } + + w->external_invoke_cb(w, (const char *)objc_msgSend( + objc_msgSend(message, sel_registerName("body")), + sel_registerName("UTF8String"))); +} + +static void run_open_panel(id self, SEL cmd, id webView, id parameters, + id frame, void (^completionHandler)(id)) { + + id openPanel = objc_msgSend((id)objc_getClass("NSOpenPanel"), + sel_registerName("openPanel")); + + objc_msgSend( + openPanel, sel_registerName("setAllowsMultipleSelection:"), + objc_msgSend(parameters, sel_registerName("allowsMultipleSelection"))); + + objc_msgSend(openPanel, sel_registerName("setCanChooseFiles:"), 1); + objc_msgSend( + openPanel, sel_registerName("beginWithCompletionHandler:"), ^(id result) { + if (result == (id)NSModalResponseOK) { + completionHandler(objc_msgSend(openPanel, sel_registerName("URLs"))); + } else { + completionHandler(nil); + } + }); +} + +static void run_save_panel(id self, SEL cmd, id download, id filename, + void (^completionHandler)(int allowOverwrite, + id destination)) { + id savePanel = objc_msgSend((id)objc_getClass("NSSavePanel"), + sel_registerName("savePanel")); + objc_msgSend(savePanel, sel_registerName("setCanCreateDirectories:"), 1); + objc_msgSend(savePanel, sel_registerName("setNameFieldStringValue:"), + filename); + objc_msgSend(savePanel, sel_registerName("beginWithCompletionHandler:"), + ^(id result) { + if (result == (id)NSModalResponseOK) { + id url = objc_msgSend(savePanel, sel_registerName("URL")); + id path = objc_msgSend(url, sel_registerName("path")); + completionHandler(1, path); + } else { + completionHandler(NO, nil); + } + }); +} + +static void run_confirmation_panel(id self, SEL cmd, id webView, id message, + id frame, void (^completionHandler)(bool)) { + + id alert = + objc_msgSend((id)objc_getClass("NSAlert"), sel_registerName("new")); + objc_msgSend(alert, sel_registerName("setIcon:"), + objc_msgSend((id)objc_getClass("NSImage"), + sel_registerName("imageNamed:"), + get_nsstring("NSCaution"))); + objc_msgSend(alert, sel_registerName("setShowsHelp:"), 0); + objc_msgSend(alert, sel_registerName("setInformativeText:"), message); + objc_msgSend(alert, sel_registerName("addButtonWithTitle:"), + get_nsstring("OK")); + objc_msgSend(alert, sel_registerName("addButtonWithTitle:"), + get_nsstring("Cancel")); + if (objc_msgSend(alert, sel_registerName("runModal")) == + (id)NSAlertFirstButtonReturn) { + completionHandler(true); + } else { + completionHandler(false); + } + objc_msgSend(alert, sel_registerName("release")); +} + +static void run_alert_panel(id self, SEL cmd, id webView, id message, id frame, + void (^completionHandler)(void)) { + id alert = + objc_msgSend((id)objc_getClass("NSAlert"), sel_registerName("new")); + objc_msgSend(alert, sel_registerName("setIcon:"), + objc_msgSend((id)objc_getClass("NSImage"), + sel_registerName("imageNamed:"), + get_nsstring("NSCaution"))); + objc_msgSend(alert, sel_registerName("setShowsHelp:"), 0); + objc_msgSend(alert, sel_registerName("setInformativeText:"), message); + objc_msgSend(alert, sel_registerName("addButtonWithTitle:"), + get_nsstring("OK")); + objc_msgSend(alert, sel_registerName("runModal")); + objc_msgSend(alert, sel_registerName("release")); + completionHandler(); +} + +static void download_failed(id self, SEL cmd, id download, id error) { + printf("%s", + (const char *)objc_msgSend( + objc_msgSend(error, sel_registerName("localizedDescription")), + sel_registerName("UTF8String"))); +} + +static void make_nav_policy_decision(id self, SEL cmd, id webView, id response, + void (^decisionHandler)(int)) { + if (objc_msgSend(response, sel_registerName("canShowMIMEType")) == 0) { + decisionHandler(WKNavigationActionPolicyDownload); + } else { + decisionHandler(WKNavigationResponsePolicyAllow); + } +} + +WEBVIEW_API int webview_init(struct webview *w) { + w->priv.pool = objc_msgSend((id)objc_getClass("NSAutoreleasePool"), + sel_registerName("new")); + objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")); + + Class __WKScriptMessageHandler = objc_allocateClassPair( + objc_getClass("NSObject"), "__WKScriptMessageHandler", 0); + class_addMethod( + __WKScriptMessageHandler, + sel_registerName("userContentController:didReceiveScriptMessage:"), + (IMP)webview_external_invoke, "v@:@@"); + objc_registerClassPair(__WKScriptMessageHandler); + + id scriptMessageHandler = + objc_msgSend((id)__WKScriptMessageHandler, sel_registerName("new")); + + /*** + _WKDownloadDelegate is an undocumented/private protocol with methods called + from WKNavigationDelegate + References: + https://github.com/WebKit/webkit/blob/master/Source/WebKit/UIProcess/API/Cocoa/_WKDownload.h + https://github.com/WebKit/webkit/blob/master/Source/WebKit/UIProcess/API/Cocoa/_WKDownloadDelegate.h + https://github.com/WebKit/webkit/blob/master/Tools/TestWebKitAPI/Tests/WebKitCocoa/Download.mm + ***/ + + Class __WKDownloadDelegate = objc_allocateClassPair( + objc_getClass("NSObject"), "__WKDownloadDelegate", 0); + class_addMethod( + __WKDownloadDelegate, + sel_registerName("_download:decideDestinationWithSuggestedFilename:" + "completionHandler:"), + (IMP)run_save_panel, "v@:@@?"); + class_addMethod(__WKDownloadDelegate, + sel_registerName("_download:didFailWithError:"), + (IMP)download_failed, "v@:@@"); + objc_registerClassPair(__WKDownloadDelegate); + id downloadDelegate = + objc_msgSend((id)__WKDownloadDelegate, sel_registerName("new")); + + Class __WKPreferences = objc_allocateClassPair(objc_getClass("WKPreferences"), + "__WKPreferences", 0); + objc_property_attribute_t type = {"T", "c"}; + objc_property_attribute_t ownership = {"N", ""}; + objc_property_attribute_t attrs[] = {type, ownership}; + class_replaceProperty(__WKPreferences, "developerExtrasEnabled", attrs, 2); + objc_registerClassPair(__WKPreferences); + id wkPref = objc_msgSend((id)__WKPreferences, sel_registerName("new")); + objc_msgSend(wkPref, sel_registerName("setValue:forKey:"), + objc_msgSend((id)objc_getClass("NSNumber"), + sel_registerName("numberWithBool:"), !!w->debug), + objc_msgSend((id)objc_getClass("NSString"), + sel_registerName("stringWithUTF8String:"), + "developerExtrasEnabled")); + + id userController = objc_msgSend((id)objc_getClass("WKUserContentController"), + sel_registerName("new")); + objc_setAssociatedObject(userController, "webview", (id)(w), + OBJC_ASSOCIATION_ASSIGN); + objc_msgSend( + userController, sel_registerName("addScriptMessageHandler:name:"), + scriptMessageHandler, + objc_msgSend((id)objc_getClass("NSString"), + sel_registerName("stringWithUTF8String:"), "invoke")); + + /*** + In order to maintain compatibility with the other 'webviews' we need to + override window.external.invoke to call + webkit.messageHandlers.invoke.postMessage + ***/ + + id windowExternalOverrideScript = objc_msgSend( + (id)objc_getClass("WKUserScript"), sel_registerName("alloc")); + objc_msgSend( + windowExternalOverrideScript, + sel_registerName("initWithSource:injectionTime:forMainFrameOnly:"), + get_nsstring("window.external = this; invoke = function(arg){ " + "webkit.messageHandlers.invoke.postMessage(arg); };"), + WKUserScriptInjectionTimeAtDocumentStart, 0); + + objc_msgSend(userController, sel_registerName("addUserScript:"), + windowExternalOverrideScript); + + id config = objc_msgSend((id)objc_getClass("WKWebViewConfiguration"), + sel_registerName("new")); + id processPool = objc_msgSend(config, sel_registerName("processPool")); + objc_msgSend(processPool, sel_registerName("_setDownloadDelegate:"), + downloadDelegate); + objc_msgSend(config, sel_registerName("setProcessPool:"), processPool); + objc_msgSend(config, sel_registerName("setUserContentController:"), + userController); + objc_msgSend(config, sel_registerName("setPreferences:"), wkPref); + + Class __NSWindowDelegate = objc_allocateClassPair(objc_getClass("NSObject"), + "__NSWindowDelegate", 0); + class_addProtocol(__NSWindowDelegate, objc_getProtocol("NSWindowDelegate")); + class_replaceMethod(__NSWindowDelegate, sel_registerName("windowWillClose:"), + (IMP)webview_window_will_close, "v@:@"); + objc_registerClassPair(__NSWindowDelegate); + + w->priv.windowDelegate = + objc_msgSend((id)__NSWindowDelegate, sel_registerName("new")); + + objc_setAssociatedObject(w->priv.windowDelegate, "webview", (id)(w), + OBJC_ASSOCIATION_ASSIGN); + + id nsTitle = + objc_msgSend((id)objc_getClass("NSString"), + sel_registerName("stringWithUTF8String:"), w->title); + + CGRect r = CGRectMake(0, 0, w->width, w->height); + + unsigned int style = NSWindowStyleMaskTitled | NSWindowStyleMaskClosable | + NSWindowStyleMaskMiniaturizable; + if (w->resizable) { + style = style | NSWindowStyleMaskResizable; + } + + w->priv.window = + objc_msgSend((id)objc_getClass("NSWindow"), sel_registerName("alloc")); + objc_msgSend(w->priv.window, + sel_registerName("initWithContentRect:styleMask:backing:defer:"), + r, style, NSBackingStoreBuffered, 0); + + objc_msgSend(w->priv.window, sel_registerName("autorelease")); + objc_msgSend(w->priv.window, sel_registerName("setTitle:"), nsTitle); + objc_msgSend(w->priv.window, sel_registerName("setDelegate:"), + w->priv.windowDelegate); + objc_msgSend(w->priv.window, sel_registerName("center")); + + Class __WKUIDelegate = + objc_allocateClassPair(objc_getClass("NSObject"), "__WKUIDelegate", 0); + class_addProtocol(__WKUIDelegate, objc_getProtocol("WKUIDelegate")); + class_addMethod(__WKUIDelegate, + sel_registerName("webView:runOpenPanelWithParameters:" + "initiatedByFrame:completionHandler:"), + (IMP)run_open_panel, "v@:@@@?"); + class_addMethod(__WKUIDelegate, + sel_registerName("webView:runJavaScriptAlertPanelWithMessage:" + "initiatedByFrame:completionHandler:"), + (IMP)run_alert_panel, "v@:@@@?"); + class_addMethod( + __WKUIDelegate, + sel_registerName("webView:runJavaScriptConfirmPanelWithMessage:" + "initiatedByFrame:completionHandler:"), + (IMP)run_confirmation_panel, "v@:@@@?"); + objc_registerClassPair(__WKUIDelegate); + id uiDel = objc_msgSend((id)__WKUIDelegate, sel_registerName("new")); + + Class __WKNavigationDelegate = objc_allocateClassPair( + objc_getClass("NSObject"), "__WKNavigationDelegate", 0); + class_addProtocol(__WKNavigationDelegate, + objc_getProtocol("WKNavigationDelegate")); + class_addMethod( + __WKNavigationDelegate, + sel_registerName( + "webView:decidePolicyForNavigationResponse:decisionHandler:"), + (IMP)make_nav_policy_decision, "v@:@@?"); + objc_registerClassPair(__WKNavigationDelegate); + id navDel = objc_msgSend((id)__WKNavigationDelegate, sel_registerName("new")); + + w->priv.webview = + objc_msgSend((id)objc_getClass("WKWebView"), sel_registerName("alloc")); + objc_msgSend(w->priv.webview, + sel_registerName("initWithFrame:configuration:"), r, config); + objc_msgSend(w->priv.webview, sel_registerName("setUIDelegate:"), uiDel); + objc_msgSend(w->priv.webview, sel_registerName("setNavigationDelegate:"), + navDel); + + id nsURL = objc_msgSend((id)objc_getClass("NSURL"), + sel_registerName("URLWithString:"), + get_nsstring(webview_check_url(w->url))); + + objc_msgSend(w->priv.webview, sel_registerName("loadRequest:"), + objc_msgSend((id)objc_getClass("NSURLRequest"), + sel_registerName("requestWithURL:"), nsURL)); + objc_msgSend(w->priv.webview, sel_registerName("setAutoresizesSubviews:"), 1); + objc_msgSend(w->priv.webview, sel_registerName("setAutoresizingMask:"), + (NSViewWidthSizable | NSViewHeightSizable)); + objc_msgSend(objc_msgSend(w->priv.window, sel_registerName("contentView")), + sel_registerName("addSubview:"), w->priv.webview); + objc_msgSend(w->priv.window, sel_registerName("orderFrontRegardless")); + + objc_msgSend(objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")), + sel_registerName("setActivationPolicy:"), + NSApplicationActivationPolicyRegular); + + objc_msgSend(objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")), + sel_registerName("finishLaunching")); + + objc_msgSend(objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")), + sel_registerName("activateIgnoringOtherApps:"), 1); + + id menubar = + objc_msgSend((id)objc_getClass("NSMenu"), sel_registerName("alloc")); + objc_msgSend(menubar, sel_registerName("initWithTitle:"), get_nsstring("")); + objc_msgSend(menubar, sel_registerName("autorelease")); + + id appName = objc_msgSend(objc_msgSend((id)objc_getClass("NSProcessInfo"), + sel_registerName("processInfo")), + sel_registerName("processName")); + + id appMenuItem = + objc_msgSend((id)objc_getClass("NSMenuItem"), sel_registerName("alloc")); + objc_msgSend(appMenuItem, + sel_registerName("initWithTitle:action:keyEquivalent:"), appName, + NULL, get_nsstring("")); + + id appMenu = + objc_msgSend((id)objc_getClass("NSMenu"), sel_registerName("alloc")); + objc_msgSend(appMenu, sel_registerName("initWithTitle:"), appName); + objc_msgSend(appMenu, sel_registerName("autorelease")); + + objc_msgSend(appMenuItem, sel_registerName("setSubmenu:"), appMenu); + objc_msgSend(menubar, sel_registerName("addItem:"), appMenuItem); + + id title = + objc_msgSend(get_nsstring("Hide "), + sel_registerName("stringByAppendingString:"), appName); + id item = create_menu_item(title, "hide:", "h"); + objc_msgSend(appMenu, sel_registerName("addItem:"), item); + + item = create_menu_item(get_nsstring("Hide Others"), + "hideOtherApplications:", "h"); + objc_msgSend(item, sel_registerName("setKeyEquivalentModifierMask:"), + (NSEventModifierFlagOption | NSEventModifierFlagCommand)); + objc_msgSend(appMenu, sel_registerName("addItem:"), item); + + item = + create_menu_item(get_nsstring("Show All"), "unhideAllApplications:", ""); + objc_msgSend(appMenu, sel_registerName("addItem:"), item); + + objc_msgSend(appMenu, sel_registerName("addItem:"), + objc_msgSend((id)objc_getClass("NSMenuItem"), + sel_registerName("separatorItem"))); + + title = objc_msgSend(get_nsstring("Quit "), + sel_registerName("stringByAppendingString:"), appName); + item = create_menu_item(title, "terminate:", "q"); + objc_msgSend(appMenu, sel_registerName("addItem:"), item); + + objc_msgSend(objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")), + sel_registerName("setMainMenu:"), menubar); + + w->priv.should_exit = 0; + return 0; +} + +WEBVIEW_API int webview_loop(struct webview *w, int blocking) { + id until = (blocking ? objc_msgSend((id)objc_getClass("NSDate"), + sel_registerName("distantFuture")) + : objc_msgSend((id)objc_getClass("NSDate"), + sel_registerName("distantPast"))); + + id event = objc_msgSend( + objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")), + sel_registerName("nextEventMatchingMask:untilDate:inMode:dequeue:"), + ULONG_MAX, until, + objc_msgSend((id)objc_getClass("NSString"), + sel_registerName("stringWithUTF8String:"), + "kCFRunLoopDefaultMode"), + true); + + if (event) { + objc_msgSend(objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")), + sel_registerName("sendEvent:"), event); + } + + return w->priv.should_exit; +} + +WEBVIEW_API int webview_eval(struct webview *w, const char *js) { + objc_msgSend(w->priv.webview, + sel_registerName("evaluateJavaScript:completionHandler:"), + get_nsstring(js), NULL); + + return 0; +} + +WEBVIEW_API void webview_set_title(struct webview *w, const char *title) { + objc_msgSend(w->priv.window, sel_registerName("setTitle"), + get_nsstring(title)); +} + +WEBVIEW_API void webview_set_fullscreen(struct webview *w, int fullscreen) { + unsigned long windowStyleMask = (unsigned long)objc_msgSend( + w->priv.window, sel_registerName("styleMask")); + int b = (((windowStyleMask & NSWindowStyleMaskFullScreen) == + NSWindowStyleMaskFullScreen) + ? 1 + : 0); + if (b != fullscreen) { + objc_msgSend(w->priv.window, sel_registerName("toggleFullScreen:"), NULL); + } +} + +WEBVIEW_API void webview_set_color(struct webview *w, uint8_t r, uint8_t g, + uint8_t b, uint8_t a) { + + id color = objc_msgSend((id)objc_getClass("NSColor"), + sel_registerName("colorWithRed:green:blue:alpha:"), + (float)r / 255.0, (float)g / 255.0, (float)b / 255.0, + (float)a / 255.0); + + objc_msgSend(w->priv.window, sel_registerName("setBackgroundColor:"), color); + + if (0.5 >= ((r / 255.0 * 299.0) + (g / 255.0 * 587.0) + (b / 255.0 * 114.0)) / + 1000.0) { + objc_msgSend(w->priv.window, sel_registerName("setAppearance:"), + objc_msgSend((id)objc_getClass("NSAppearance"), + sel_registerName("appearanceNamed:"), + get_nsstring("NSAppearanceNameVibrantDark"))); + } else { + objc_msgSend(w->priv.window, sel_registerName("setAppearance:"), + objc_msgSend((id)objc_getClass("NSAppearance"), + sel_registerName("appearanceNamed:"), + get_nsstring("NSAppearanceNameVibrantLight"))); + } + objc_msgSend(w->priv.window, sel_registerName("setOpaque:"), 0); + objc_msgSend(w->priv.window, + sel_registerName("setTitlebarAppearsTransparent:"), 1); +} + +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) { + id panel = (id)objc_getClass("NSSavePanel"); + if (dlgtype == WEBVIEW_DIALOG_TYPE_OPEN) { + id openPanel = objc_msgSend((id)objc_getClass("NSOpenPanel"), + sel_registerName("openPanel")); + if (flags & WEBVIEW_DIALOG_FLAG_DIRECTORY) { + objc_msgSend(openPanel, sel_registerName("setCanChooseFiles:"), 0); + objc_msgSend(openPanel, sel_registerName("setCanChooseDirectories:"), + 1); + } else { + objc_msgSend(openPanel, sel_registerName("setCanChooseFiles:"), 1); + objc_msgSend(openPanel, sel_registerName("setCanChooseDirectories:"), + 0); + } + objc_msgSend(openPanel, sel_registerName("setResolvesAliases:"), 0); + objc_msgSend(openPanel, sel_registerName("setAllowsMultipleSelection:"), + 0); + panel = openPanel; + } else { + panel = objc_msgSend((id)objc_getClass("NSSavePanel"), + sel_registerName("savePanel")); + } + + objc_msgSend(panel, sel_registerName("setCanCreateDirectories:"), 1); + objc_msgSend(panel, sel_registerName("setShowsHiddenFiles:"), 1); + objc_msgSend(panel, sel_registerName("setExtensionHidden:"), 0); + objc_msgSend(panel, sel_registerName("setCanSelectHiddenExtension:"), 0); + objc_msgSend(panel, sel_registerName("setTreatsFilePackagesAsDirectories:"), + 1); + objc_msgSend( + panel, sel_registerName("beginSheetModalForWindow:completionHandler:"), + w->priv.window, ^(id result) { + objc_msgSend(objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")), + sel_registerName("stopModalWithCode:"), result); + }); + + if (objc_msgSend(objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")), + sel_registerName("runModalForWindow:"), + panel) == (id)NSModalResponseOK) { + id url = objc_msgSend(panel, sel_registerName("URL")); + id path = objc_msgSend(url, sel_registerName("path")); + const char *filename = + (const char *)objc_msgSend(path, sel_registerName("UTF8String")); + strlcpy(result, filename, resultsz); + } + } else if (dlgtype == WEBVIEW_DIALOG_TYPE_ALERT) { + id a = objc_msgSend((id)objc_getClass("NSAlert"), sel_registerName("new")); + switch (flags & WEBVIEW_DIALOG_FLAG_ALERT_MASK) { + case WEBVIEW_DIALOG_FLAG_INFO: + objc_msgSend(a, sel_registerName("setAlertStyle:"), + NSAlertStyleInformational); + break; + case WEBVIEW_DIALOG_FLAG_WARNING: + printf("Warning\n"); + objc_msgSend(a, sel_registerName("setAlertStyle:"), NSAlertStyleWarning); + break; + case WEBVIEW_DIALOG_FLAG_ERROR: + printf("Error\n"); + objc_msgSend(a, sel_registerName("setAlertStyle:"), NSAlertStyleCritical); + break; + } + objc_msgSend(a, sel_registerName("setShowsHelp:"), 0); + objc_msgSend(a, sel_registerName("setShowsSuppressionButton:"), 0); + objc_msgSend(a, sel_registerName("setMessageText:"), get_nsstring(title)); + objc_msgSend(a, sel_registerName("setInformativeText:"), get_nsstring(arg)); + objc_msgSend(a, sel_registerName("addButtonWithTitle:"), + get_nsstring("OK")); + objc_msgSend(a, sel_registerName("runModal")); + objc_msgSend(a, sel_registerName("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) { + id app = objc_msgSend((id)objc_getClass("NSApplication"), + sel_registerName("sharedApplication")); + objc_msgSend(app, sel_registerName("terminate:"), app); +} + +WEBVIEW_API void webview_print_log(const char *s) { printf("%s\n", s); } + +#endif /* WEBVIEW_COCOA */ + +#endif /* WEBVIEW_IMPLEMENTATION */ + +#ifdef __cplusplus +} +#endif + +#endif /* WEBVIEW_H */ diff --git a/vendor/github.com/zserge/webview/webview_test.cc b/vendor/github.com/zserge/webview/webview_test.cc new file mode 100644 index 000000000..ca6281c68 --- /dev/null +++ b/vendor/github.com/zserge/webview/webview_test.cc @@ -0,0 +1,176 @@ +// +build ignore + +#include +#include +#include +#include +#include +#include +#include +#include + +#define WEBVIEW_IMPLEMENTATION +#include "webview.h" + +extern "C" void webview_dispatch_proxy(struct webview *w, void *arg) { + (*static_cast *>(arg))(w); +} + +class runner { +public: + runner(struct webview *w) : w(w) { webview_init(this->w); } + ~runner() { webview_exit(this->w); } + runner &then(std::function fn) { + auto arg = new std::pair, void *>( + fn, nullptr); + this->queue.push_back([=](struct webview *w) { + webview_dispatch( + w, + [](struct webview *w, void *arg) { + auto dispatch_arg = reinterpret_cast< + std::pair, void *> *>( + arg); + dispatch_arg->first(w); + delete dispatch_arg; + }, + reinterpret_cast(arg)); + }); + return *this; + } + runner &sleep(const int millis) { + this->queue.push_back([=](struct webview *w) { + (void)w; + std::this_thread::sleep_for(std::chrono::milliseconds(millis)); + }); + return *this; + } + void wait() { + this->then([](struct webview *w) { webview_terminate(w); }); + auto q = this->queue; + auto w = this->w; + std::thread bg_thread([w, q]() { + for (auto f : q) { + f(w); + } + }); + while (webview_loop(w, 1) == 0) { + } + bg_thread.join(); + } + +private: + struct webview *w; + std::vector> queue; +}; + +static void test_minimal() { + struct webview w = {}; + std::cout << "TEST: minimal" << std::endl; + w.title = "Minimal test"; + w.width = 480; + w.height = 320; + webview_init(&w); + webview_dispatch(&w, + [](struct webview *w, void *arg) { + (void)arg; + webview_terminate(w); + }, + nullptr); + while (webview_loop(&w, 1) == 0) { + } + webview_exit(&w); +} + +static void test_window_size() { + struct webview w = {}; + std::vector results; + std::cout << "TEST: window size" << std::endl; + w.width = 480; + w.height = 320; + w.resizable = 1; + w.userdata = static_cast(&results); + w.external_invoke_cb = [](struct webview *w, const char *arg) { + auto *v = static_cast *>(w->userdata); + v->push_back(std::string(arg)); + }; + runner(&w) + .then([](struct webview *w) { + webview_eval(w, "window.external.invoke(''+window.screen.width+' ' + " + "window.screen.height)"); + webview_eval(w, "window.external.invoke(''+window.innerWidth+' ' + " + "window.innerHeight)"); + }) + .sleep(200) + .then([](struct webview *w) { webview_set_fullscreen(w, 1); }) + .sleep(500) + .then([](struct webview *w) { + webview_eval(w, "window.external.invoke(''+window.innerWidth+' ' + " + "window.innerHeight)"); + }) + .sleep(200) + .then([](struct webview *w) { webview_set_fullscreen(w, 0); }) + .sleep(500) + .then([](struct webview *w) { + webview_eval(w, "window.external.invoke(''+window.innerWidth+' ' + " + "window.innerHeight)"); + }) + .wait(); + assert(results.size() == 4); + assert(results[1] == "480 320"); + assert(results[0] == results[2]); + assert(results[1] == results[3]); +} + +static void test_inject_js() { + struct webview w = {}; + std::vector results; + std::cout << "TEST: inject JS" << std::endl; + w.width = 480; + w.height = 320; + w.userdata = static_cast(&results); + w.external_invoke_cb = [](struct webview *w, const char *arg) { + auto *v = static_cast *>(w->userdata); + v->push_back(std::string(arg)); + }; + runner(&w) + .then([](struct webview *w) { + webview_eval(w, + R"(document.body.innerHTML = '
Foo
';)"); + webview_eval( + w, + "window.external.invoke(document.getElementById('foo').innerText)"); + }) + .wait(); + assert(results.size() == 1); + assert(results[0] == "Foo"); +} + +static void test_inject_css() { + struct webview w = {}; + std::vector results; + std::cout << "TEST: inject CSS" << std::endl; + w.width = 480; + w.height = 320; + w.userdata = static_cast(&results); + w.external_invoke_cb = [](struct webview *w, const char *arg) { + auto *v = static_cast *>(w->userdata); + v->push_back(std::string(arg)); + }; + runner(&w) + .then([](struct webview *w) { + webview_inject_css(w, "#app { margin-left: 4px; }"); + webview_eval(w, "window.external.invoke(getComputedStyle(document." + "getElementById('app')).marginLeft)"); + }) + .wait(); + assert(results.size() == 1); + assert(results[0] == "4px"); +} + +int main() { + test_minimal(); + test_window_size(); + test_inject_js(); + test_inject_css(); + return 0; +} diff --git a/vendor/modules.txt b/vendor/modules.txt new file mode 100644 index 000000000..93bf25893 --- /dev/null +++ b/vendor/modules.txt @@ -0,0 +1,2 @@ +# github.com/zserge/webview v0.0.0-20190123072648-16c93bcaeaeb +github.com/zserge/webview