/
icons.go
103 lines (80 loc) · 2.39 KB
/
icons.go
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package prago
import (
"embed"
"errors"
"fmt"
"io"
"strings"
)
// const iconResource = "glyphicons-basic-577-cluster.svg"
const iconResource = "glyphicons-basic-964-layers.svg"
const iconTable = "glyphicons-basic-120-table.svg"
const iconAdd = "glyphicons-basic-371-plus.svg"
const iconSignpost = "glyphicons-basic-697-directions-sign.svg"
const iconBoard = "glyphicons-basic-424-blackboard.svg"
const iconForm = "glyphicons-basic-30-clipboard.svg"
const iconView = "glyphicons-basic-588-book-open-text.svg"
const iconAction = "glyphicons-basic-111-paragraph-left.svg"
func (app *App) SetIcons(iconsFS embed.FS, prefix string) {
app.iconsFS = &iconsFS
app.iconsPrefix = prefix
}
func (app *App) iconExists(iconName string) bool {
if app.iconsFS == nil {
return false
}
file, err := app.iconsFS.Open(app.iconsPrefix + iconName)
if err != nil {
return false
}
file.Close()
return true
}
func (app *App) loadIcon(iconName, color string) ([]byte, error) {
if app.iconsFS == nil {
return nil, errors.New("no icons set")
}
data, err := app.iconsFS.ReadFile(app.iconsPrefix + iconName)
if err != nil {
return nil, err
}
str := string(data)
if color != "" {
str = fmt.Sprintf("<svg fill=\"#%s\" %s", color, str[4:])
}
return []byte(str), nil
}
func iconColorPrefix(color string) io.Reader {
if len(color) != 6 {
return strings.NewReader("<svg ")
}
return strings.NewReader(fmt.Sprintf("<svg fill=\"#%s\" ", color))
}
func (app *App) initIcons() {
app.API("icons").Permission(everybodyPermission).Method("GET").Handler(func(request *Request) {
if app.iconsFS == nil {
request.WriteJSON(404, "icon not found")
return
}
request.Response().Header().Add("Content-Type", "image/svg+xml")
request.Response().Header().Add("Cache-Control", "max-age=604800")
file, err := app.iconsFS.Open(app.iconsPrefix + request.Param("file"))
must(err)
defer file.Close()
io.Copy(request.Response(), iconColorPrefix(request.Param("color")))
io.CopyN(io.Discard, file, 4)
io.Copy(request.Response(), file)
})
app.Action("help/icons").Name(unlocalized("Ikony")).Permission(loggedPermission).Board(nil).ui(
func(request *Request, pd *pageData) {
prefix := app.iconsPrefix
prefix = strings.TrimRight(prefix, "/")
icons, err := app.iconsFS.ReadDir(prefix)
must(err)
var ret []string
for _, v := range icons {
ret = append(ret, v.Name())
}
pd.HelpIcons = ret
})
}