zoom_cgo.go RawHistoryFolder

1//go:build webkit_cgo
2
3package webkit
4
5/*
6#cgo pkg-config: webkitgtk-6.0 gtk4
7#cgo CFLAGS: -I/usr/include/webkitgtk-6.0
8#include <webkit/webkit.h>
9*/
10import "C"
11
12import "fmt"
13
14func (w *WebView) SetZoom(level float64) error {
15	if w == nil || w.destroyed || w.native == nil || w.native.wv == nil {
16		return ErrNotImplemented
17	}
18	level = clampDomZoom(level)
19	w.zoom = level
20	if w.useDomZoom {
21		w.SeedDomZoom(level)
22		script := fmt.Sprintf(`(function(){try{const lvl=%[1]f;window.__dumber_dom_zoom_level=lvl;if(window.__dumber_applyDomZoom){window.__dumber_applyDomZoom(lvl);}else{if(Math.abs(lvl-1.0)<1e-6){document.documentElement.style.zoom='';if(document.body){document.body.style.zoom='';}}else{const value=lvl.toString();document.documentElement.style.zoom=value;if(document.body){document.body.style.zoom=value;}}}}catch(e){console.error('[dumber] DOM zoom error',e);}})();`, level)
23		if err := w.InjectScript(script); err != nil {
24			C.webkit_web_view_set_zoom_level(w.native.wv, C.gdouble(level))
25		}
26	} else {
27		C.webkit_web_view_set_zoom_level(w.native.wv, C.gdouble(level))
28	}
29	w.dispatchZoomChanged(w.zoom)
30	return nil
31}
32
33func (w *WebView) GetZoom() (float64, error) {
34	if w == nil || w.destroyed || w.native == nil || w.native.wv == nil {
35		return 1.0, ErrNotImplemented
36	}
37	if w.useDomZoom {
38		return w.zoom, nil
39	}
40	z := float64(C.webkit_web_view_get_zoom_level(w.native.wv))
41	w.zoom = z
42	return z, nil
43}