evaluate.go RawHistoryFolder

1package webkit
2
3/*
4#cgo pkg-config: webkitgtk-6.0
5#include <webkit/webkit.h>
6#include <stdlib.h>
7*/
8import "C"
9import (
10	"unsafe"
11
12	javascriptcore "github.com/diamondburned/gotk4-webkitgtk/pkg/javascriptcore/v6"
13	webkit "github.com/diamondburned/gotk4-webkitgtk/pkg/webkit/v6"
14	"github.com/diamondburned/gotk4/pkg/core/glib"
15)
16
17// EvaluateJavascript executes JavaScript code in the WebView in the default world
18// This is a wrapper around webkit_web_view_evaluate_javascript that wasn't generated by gotk4
19func EvaluateJavascript(view *webkit.WebView, script string) {
20	EvaluateJavascriptInWorld(view, script, "")
21}
22
23// EvaluateJavascriptInWorld executes JavaScript code in a specific world
24// Pass empty string for worldName to use the main/page world
25func EvaluateJavascriptInWorld(view *webkit.WebView, script string, worldName string) {
26	if view == nil {
27		return
28	}
29
30	// Get the underlying GObject pointer from the gotk4 WebView
31	obj := glib.BaseObject(view)
32	if obj == nil {
33		return
34	}
35
36	nativePtr := obj.Native()
37	if nativePtr == 0 {
38		return
39	}
40
41	cScript := C.CString(script)
42	defer C.free(unsafe.Pointer(cScript))
43
44	var cWorldName *C.char
45	if worldName != "" {
46		cWorldName = C.CString(worldName)
47		defer C.free(unsafe.Pointer(cWorldName))
48	}
49
50	// Call webkit_web_view_evaluate_javascript
51	// Parameters: web_view, script, length, world_name, source_uri, cancellable, callback, user_data
52	C.webkit_web_view_evaluate_javascript(
53		(*C.WebKitWebView)(unsafe.Pointer(nativePtr)),
54		cScript,
55		C.gssize(-1), // -1 means null-terminated string
56		cWorldName,   // world_name (NULL for main world, or specific world name)
57		nil,          // source_uri (NULL)
58		nil,          // cancellable (NULL)
59		nil,          // callback (NULL for fire-and-forget)
60		nil,          // user_data (NULL)
61	)
62}
63
64// JSCValueToString converts a JSCValue from a GTK signal to a Go string
65func JSCValueToString(value interface{}) string {
66	if value == nil {
67		return ""
68	}
69
70	// Type assert to *javascriptcore.Value from gotk4 bindings
71	jscValue, ok := value.(*javascriptcore.Value)
72	if !ok {
73		return ""
74	}
75
76	// Use the gotk4 String() method to convert JSCValue to string
77	return jscValue.String()
78}