ref: 50ad979b5dc99c2499a3b80d3318c2a4c6430b28
dir: /browser/experimental.go/
package browser
import (
//"bytes"
"fmt"
"image"
//"io/ioutil"
//"net/http"
"strings"
"opossum/domino"
"opossum/nodes"
"time"
"9fans.net/go/draw"
"github.com/mjl-/duit"
//"opossum/nodes"
)
func (el *Element) slicedDraw(dui *duit.DUI, self *duit.Kid, img *draw.Image, orig image.Point, m draw.Mouse, force bool) bool {
//fmt.Printf("m.Point.y=%v\n", m.Point.Y)
if experimentalUseSlicedDrawing {
//offset := scroller.GetOffset()
offset := -1
panic("not implemented")
fmt.Printf("orig=%v m.Point.y=%v offset=%v\n", orig.Y,m.Point.Y,offset)
if (m.Point.Y-offset < -10 || m.Point.Y-offset > 1200) && isLeaf(el.UI) {
return true
}
}
return false
}
type AtomBox struct {
Left, Right, Bottom, Top int
}
// Atom is div/span with contentEditable=true/false, i.e. it should be able
// to render practically anything
type Atom struct {
// BackgroundImgSrc to read image from provided cache
// it's okay when the pointer is empty -> defered loading
BackgroundImgSrc string
BackgroundColor draw.Color
BorderWidths AtomBox
Color draw.Color
Margin AtomBox
Padding AtomBox
Wrap bool
// Children []*Atom TODO: future; at the same time rething where
// to put Draw functions etc./if to rely on
// type Kid
Text string // Text to draw, wrapped at glyph boundary.
Font *draw.Font `json:"-"` // For drawing text.
Click func()
lines []string
size image.Point
m draw.Mouse
}
func (ui *Atom) font(dui *duit.DUI) *draw.Font {
return dui.Font(ui.Font)
}
func (ui *Atom) Draw(dui *duit.DUI, self *duit.Kid, img *draw.Image, orig image.Point, m draw.Mouse, force bool) {
// dui.debugDraw(self)
p := orig
font := ui.font(dui)
for _, line := range ui.lines {
img.String(p, dui.Regular.Normal.Text, image.ZP, font, line)
p.Y += font.Height
}
}
func isLeaf(ui duit.UI) bool {
if ui == nil {
return true
}
switch /*v := */ui.(type) {
case nil:
return true
case *duit.Scroll:
return false
case *duit.Box:
return false
case *Element:
return false
case *duit.Grid:
return false
case *duit.Image:
return true
case *duit.Label:
return true
case *ColoredLabel:
return false
case *duit.Button:
return true
case *Image:
return false
case *duit.Field:
return true
case *CodeView:
return false
default:
return false
}
}
func CleanTree(ui duit.UI) {
if ui == nil {
panic("nil root")
}
TraverseTree(ui, func(ui duit.UI) {
if ui == nil {
panic("null")
}
switch v := ui.(type) {
case nil:
panic("null")
case *duit.Scroll:
panic("like nil root")
case *duit.Box:
//realKids := make([])
case *Element:
if v == nil {
panic("null element")
}
case *duit.Grid:
case *duit.Image:
case *duit.Label:
case *ColoredLabel:
case *duit.Button:
case *Image:
case *duit.Field:
case *CodeView:
default:
panic(fmt.Sprintf("unknown: %+v", v))
}
})
}
func processJS(htm string) (resHtm string, err error) {
_ = strings.Replace(htm, "window.", "", -1)
d := domino.NewDomino(htm)
d.Start()
if err = d.ExecInlinedScripts(); err != nil {
return "", fmt.Errorf("exec <script>s: %w", err)
}
time.Sleep(time.Second)
resHtm, changed, err := d.TrackChanges()
log.Infof("processJS: changes = %v", changed)
d.Stop()
return
}
func processJS2(htm string, doc *nodes.Node, scripts []string) (resHtm string, err error) {
//_ = strings.Replace(htm, "window.", "", -1)
d := domino.NewDomino(htm)
d.Start()
code := ""
for _, script := range scripts {
code += `
try {
` + script + `;
` + fmt.Sprintf(`
console.log('==============');
console.log('Success!');
console.log('==============');
`) + `
} catch(e) {
console.log('==============');
console.log('Catch:');
console.log(e);
console.log('==============');
}
`
}
log.Printf("code=%v\n", code)
if err = d.Exec/*6*/(code); err != nil {
return "", fmt.Errorf("exec <script>s: %w", err)
}
time.Sleep(time.Second)
resHtm, changed, err := d.TrackChanges()
if err != nil {
return "", fmt.Errorf("track changes: %w", err)
}
log.Printf("processJS: changes = %v", changed)
log.Printf("exp. resHtm=%v\n", resHtm)
d.Stop()
return
}