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common.go
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common.go
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package webview2
import "unsafe"
// This is copied from webview/webview.
// The documentation is included for convenience.
// Hint is used to configure window sizing and resizing behavior.
type Hint int
const (
// HintNone specifies that width and height are default size
HintNone Hint = iota
// HintFixed specifies that window size can not be changed by a user
HintFixed
// HintMin specifies that width and height are minimum bounds
HintMin
// HintMax specifies that width and height are maximum bounds
HintMax
)
// WebView is the interface for the webview.
type WebView interface {
// Run runs the main loop until it's terminated. After this function exits -
// you must destroy the webview.
Run()
// Terminate stops the main loop. It is safe to call this function from
// a background thread.
Terminate()
// Dispatch posts a function to be executed on the main thread. You normally
// do not need to call this function, unless you want to tweak the native
// window.
Dispatch(f func())
// Destroy destroys a webview and closes the native window.
Destroy()
// Window returns a native window handle pointer. When using GTK backend the
// pointer is GtkWindow pointer, when using Cocoa backend the pointer is
// NSWindow pointer, when using Win32 backend the pointer is HWND pointer.
Window() unsafe.Pointer
// SetTitle updates the title of the native window. Must be called from the UI
// thread.
SetTitle(title string)
// SetSize updates native window size. See Hint constants.
SetSize(w int, h int, hint Hint)
// Navigate navigates webview to the given URL. URL may be a data URI, i.e.
// "data:text/text,<html>...</html>". It is often ok not to url-encode it
// properly, webview will re-encode it for you.
Navigate(url string)
// SetHtml sets the webview HTML directly.
// The origin of the page is `about:blank`.
SetHtml(html string)
// Init injects JavaScript code at the initialization of the new page. Every
// time the webview will open a the new page - this initialization code will
// be executed. It is guaranteed that code is executed before window.onload.
Init(js string)
// Eval evaluates arbitrary JavaScript code. Evaluation happens asynchronously,
// also the result of the expression is ignored. Use RPC bindings if you want
// to receive notifications about the results of the evaluation.
Eval(js string)
// Bind binds a callback function so that it will appear under the given name
// as a global JavaScript function. Internally it uses webview_init().
// Callback receives a request string and a user-provided argument pointer.
// Request string is a JSON array of all the arguments passed to the
// JavaScript function.
//
// f must be a function
// f must return either value and error or just error
Bind(name string, f interface{}) error
}