mirror of
https://github.com/diamondburned/cchat-gtk.git
synced 2024-10-31 19:44:23 +00:00
83 lines
2.1 KiB
Go
83 lines
2.1 KiB
Go
package imgview
|
|
|
|
import (
|
|
"net/url"
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/diamondburned/cchat-gtk/internal/gts/httputil"
|
|
"github.com/diamondburned/cchat-gtk/internal/ui/primitives"
|
|
"github.com/diamondburned/cchat-gtk/internal/ui/rich/parser"
|
|
"github.com/gotk3/gotk3/gdk"
|
|
"github.com/gotk3/gotk3/gtk"
|
|
)
|
|
|
|
const (
|
|
MaxWidth = 350
|
|
MaxHeight = 350
|
|
)
|
|
|
|
type WidgetConnector interface {
|
|
gtk.IWidget
|
|
primitives.Connector
|
|
}
|
|
|
|
var _ WidgetConnector = (*gtk.Label)(nil)
|
|
|
|
func BindTooltip(connector WidgetConnector) {
|
|
// This implementation doesn't seem like a good idea. First off, is the
|
|
// closure really garbage collected? If it's not, then we have some huge
|
|
// issues. Second, if the closure is garbage collected, then when? If it's
|
|
// not garbage collecteed, then not only are we leaking 2 float64s per
|
|
// message, but we're also keeping alive the widget.
|
|
|
|
var x, y float64
|
|
connector.Connect("motion-notify-event", func(w gtk.IWidget, ev *gdk.Event) {
|
|
mev := gdk.EventMotionNewFromEvent(ev)
|
|
x, y = mev.MotionVal()
|
|
})
|
|
|
|
connector.Connect("activate-link", func(c WidgetConnector, uri string) bool {
|
|
switch ext(uri) {
|
|
case ".jpg", ".jpeg", ".png", ".webp", ".gif":
|
|
// Make a new rectangle to use in the popover.
|
|
r := gdk.Rectangle{}
|
|
r.SetX(int(x))
|
|
r.SetY(int(y))
|
|
|
|
// Make a new image that's asynchronously fetched.
|
|
img, _ := gtk.ImageNewFromIconName("image-loading", gtk.ICON_SIZE_BUTTON)
|
|
img.SetMarginStart(5)
|
|
img.SetMarginEnd(5)
|
|
img.SetMarginTop(5)
|
|
img.SetMarginBottom(5)
|
|
img.Show()
|
|
|
|
// Cap the width and height if requested.
|
|
var w, h = parser.FragmentImageSize(uri, MaxWidth, MaxHeight)
|
|
httputil.AsyncImageSized(img, uri, w, h)
|
|
|
|
p, _ := gtk.PopoverNew(c)
|
|
p.SetPointingTo(r)
|
|
p.Connect("closed", img.Destroy) // on close, destroy image
|
|
p.Add(img)
|
|
p.Popup()
|
|
|
|
return true
|
|
|
|
default:
|
|
return false
|
|
}
|
|
})
|
|
}
|
|
|
|
// ext parses and sanitizes the extension to something comparable.
|
|
func ext(uri string) string {
|
|
u, err := url.Parse(uri)
|
|
if err != nil {
|
|
return strings.ToLower(path.Ext(uri))
|
|
}
|
|
|
|
return strings.ToLower(path.Ext(u.Path))
|
|
}
|