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mleku
2025-11-30 16:45:22 +00:00
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app.go Normal file
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package gel
import (
"fmt"
"go.uber.org/atomic"
"golang.org/x/exp/shiny/materialdesign/icons"
l "github.com/p9c/p9/pkg/gel/gio/layout"
"github.com/p9c/p9/pkg/gel/gio/unit"
)
// App defines an application with a header, sidebar/menu, right side button bar, changeable body page widget and
// pop-over layers
type App struct {
*Window
activePage *atomic.String
invalidate chan struct{}
bodyBackground string
bodyColor string
pageBackground string
pageColor string
cardBackground string
cardColor string
buttonBar []l.Widget
hideSideBar bool
hideTitleBar bool
layers []l.Widget
Logo *[]byte
LogoClickable *Clickable
menuBackground string
menuButton *IconButton
menuClickable *Clickable
menuColor string
menuIcon *[]byte
MenuOpen bool
pages WidgetMap
root *Stack
sideBar []l.Widget
sideBarBackground string
sideBarColor string
SideBarSize unit.Dp
sideBarList *List
Size *atomic.Int32
statusBar []l.Widget
statusBarRight []l.Widget
statusBarBackground string
statusBarColor string
title string
titleBarBackground string
titleBarColor string
titleFont string
mainDirection l.Direction
PreRendering bool
Break1 float32
}
type WidgetMap map[string]l.Widget
func (w *Window) App(size *atomic.Int32, activePage *atomic.String, Break1 float32, ) *App {
// mc := w.Clickable()
a := &App{
Window: w,
activePage: activePage,
bodyBackground: "DocBg",
bodyColor: "DocText",
pageBackground: "PanelBg",
pageColor: "PanelText",
cardBackground: "DocBg",
cardColor: "DocText",
buttonBar: nil,
hideSideBar: false,
hideTitleBar: false,
layers: nil,
pages: make(WidgetMap),
root: w.Stack(),
sideBarBackground: "DocBg",
sideBarColor: "DocText",
statusBarBackground: "DocBg",
statusBarColor: "DocText",
Logo: &icons.ActionSettingsApplications,
title: "gio elements application",
titleBarBackground: "Primary",
titleBarColor: "DocBg",
titleFont: "plan9",
menuIcon: &icons.NavigationMenu,
menuColor: "DocText",
MenuOpen: false,
Size: size,
mainDirection: l.Center + 1,
Break1: Break1,
LogoClickable: w.WidgetPool.GetClickable(),
sideBarList: w.WidgetPool.GetList(),
}
a.SideBarSize = unit.Dp(0)
return a
}
func (a *App) SetAppTitleText(title string) *App {
a.title = title
return a
}
func (a *App) AppTitleText() string {
return a.title
}
func (a *App) SetLogo(logo *[]byte) *App {
a.Logo = logo
return a
}
func (a *App) GetLogo() string {
return a.title
}
func (a *App) SetMainDirection(direction l.Direction) *App {
a.mainDirection = direction
return a
}
func (a *App) MainDirection() l.Direction {
return a.mainDirection
}
// Fn renders the node widget
func (a *App) Fn() func(gtx l.Context) l.Dimensions {
return func(gtx l.Context) l.Dimensions {
return a.Fill(a.bodyBackground, l.Center, 0, 0,
a.VFlex().
Rigid(
a.RenderHeader,
).
Flexed(
1,
a.MainFrame,
).
Rigid(
a.RenderStatusBar,
).
Fn,
).
Fn(gtx)
}
}
func (a *App) RenderStatusBar(gtx l.Context) l.Dimensions {
bar := a.Flex()
for x := range a.statusBar {
i := x
bar.Rigid(a.statusBar[i])
}
bar.Flexed(1, EmptyMaxWidth())
for x := range a.statusBarRight {
i := x
bar.Rigid(a.statusBarRight[i])
}
return bar.Fn(gtx)
}
func (a *App) RenderHeader(gtx l.Context) l.Dimensions {
return a.Flex().AlignMiddle().
Rigid(
a.Theme.Responsive(
a.Size.Load(),
Widgets{
{Widget: If(len(a.sideBar) > 0, a.MenuButton, a.NoMenuButton)},
{Size: a.Break1, Widget: a.NoMenuButton},
},
).
Fn,
).
Flexed(
1, If(
float32(a.Width.Load()) >= float32(a.TextSize)*a.Break1,
a.Direction().W().Embed(a.LogoAndTitle).Fn,
a.Direction().Center().Embed(a.LogoAndTitle).Fn,
),
).
Rigid(
a.RenderButtonBar,
).Fn(gtx)
}
func (a *App) RenderButtonBar(gtx l.Context) l.Dimensions {
out := a.Theme.Flex()
for i := range a.buttonBar {
out.Rigid(a.buttonBar[i])
}
dims := out.Fn(gtx)
gtx.Constraints.Min = dims.Size
gtx.Constraints.Max = dims.Size
return dims
}
func (a *App) MainFrame(gtx l.Context) l.Dimensions {
return a.Flex().
Rigid(
a.VFlex().
Flexed(
1,
a.Responsive(
a.Size.Load(), Widgets{
{
Widget: func(gtx l.Context) l.Dimensions {
return If(
a.MenuOpen,
a.renderSideBar(),
EmptySpace(0, 0),
)(gtx)
},
},
{
Size: a.Break1,
Widget:
a.renderSideBar(),
},
},
).Fn,
).Fn,
).
Flexed(
1,
a.RenderPage,
).
Fn(gtx)
}
func (a *App) MenuButton(gtx l.Context) l.Dimensions {
bg := "Transparent"
color := a.menuColor
if a.MenuOpen {
color = "DocText"
bg = a.sideBarBackground
}
return a.Theme.Flex().SpaceEvenly().AlignEnd().
Rigid(
a.ButtonLayout(a.menuClickable).
CornerRadius(0).
Embed(
a.Inset(
0.375,
a.Icon().
Scale(Scales["H5"]).
Color(color).
Src(&icons.NavigationMenu).
Fn,
).Fn,
).
Background(bg).
SetClick(
func() {
a.MenuOpen = !a.MenuOpen
},
).
Fn,
).Fn(gtx)
}
func (a *App) NoMenuButton(_ l.Context) l.Dimensions {
a.MenuOpen = false
return l.Dimensions{}
}
func (a *App) LogoAndTitle(gtx l.Context) l.Dimensions {
return a.Theme.Responsive(
a.Size.Load(), Widgets{
{
Widget: a.Theme.Flex().AlignMiddle().
Rigid(
a.
Inset(
0.25, a.
IconButton(
a.LogoClickable.
SetClick(
func() {
D.Ln("clicked logo")
a.Theme.Dark.Flip()
a.Theme.Colors.SetDarkTheme(a.Theme.Dark.True())
},
),
).
Icon(
a.Icon().
Scale(Scales["H6"]).
Color("DocText").
Src(a.Logo),
).
Background("Transparent").
Color("DocText").
ButtonInset(0.25).
Corners(0).
Fn,
).
Fn,
).
Rigid(
a.H5(a.ActivePageGet()).
Color("DocText").Fn,
).
Fn,
},
{
Size: a.Break1,
Widget: a.Theme.Flex().AlignMiddle().
Rigid(
a.
Inset(
0.25, a.
IconButton(
a.LogoClickable.
SetClick(
func() {
D.Ln("clicked logo")
a.Theme.Dark.Flip()
a.Theme.Colors.SetDarkTheme(a.Theme.Dark.True())
},
),
).
Icon(
a.Icon().
Scale(Scales["H6"]).
Color("DocText").
Src(a.Logo),
).
Background("Transparent").Color("DocText").
ButtonInset(0.25).
Corners(0).
Fn,
).
Fn,
).
Rigid(
a.H5(a.title).Color("DocText").Fn,
).
Fn,
},
},
).Fn(gtx)
}
func (a *App) RenderPage(gtx l.Context) l.Dimensions {
return a.Fill(
a.pageBackground, l.Center, 0, 0, a.Inset(
0.25,
func(gtx l.Context) l.Dimensions {
if page, ok := a.pages[a.activePage.Load()]; !ok {
return a.Flex().
Flexed(
1,
a.VFlex().SpaceEvenly().
Rigid(
a.H1("404").Fn,
).
Rigid(
a.Body1("page "+a.activePage.Load()+" not found").Fn,
).
Fn,
).Fn(gtx)
} else {
return page(gtx)
}
},
).Fn,
).Fn(gtx)
}
func (a *App) DimensionCaption(gtx l.Context) l.Dimensions {
return a.Caption(fmt.Sprintf("%dx%d", gtx.Constraints.Max.X, gtx.Constraints.Max.Y)).Fn(gtx)
}
func (a *App) renderSideBar() l.Widget {
if len(a.sideBar) > 0 {
le := func(gtx l.Context, index int) l.Dimensions {
dims := a.sideBar[index](gtx)
return dims
}
return func(gtx l.Context) l.Dimensions {
a.PreRendering = true
gtx1 := CopyContextDimensionsWithMaxAxis(gtx, l.Horizontal)
// generate the dimensions for all the list elements
allDims := GetDimensionList(gtx1, len(a.sideBar), le)
a.PreRendering = false
max := 0
for _, i := range allDims {
if i.Size.X > max {
max = i.Size.X
}
}
a.SideBarSize = unit.Dp(max)
gtx.Constraints.Max.X = max
gtx.Constraints.Min.X = max
out := a.VFlex().
Rigid(
a.sideBarList.
Length(len(a.sideBar)).
LeftSide(true).
Vertical().
ListElement(le).
Fn,
)
return out.Fn(gtx)
}
} else {
return EmptySpace(0, 0)
}
}
func (a *App) ActivePage(activePage string) *App {
a.Invalidate()
a.activePage.Store(activePage)
return a
}
func (a *App) ActivePageGet() string {
return a.activePage.Load()
}
func (a *App) ActivePageGetAtomic() *atomic.String {
return a.activePage
}
func (a *App) BodyBackground(bodyBackground string) *App {
a.bodyBackground = bodyBackground
return a
}
func (a *App) BodyBackgroundGet() string {
return a.bodyBackground
}
func (a *App) BodyColor(bodyColor string) *App {
a.bodyColor = bodyColor
return a
}
func (a *App) BodyColorGet() string {
return a.bodyColor
}
func (a *App) CardBackground(cardBackground string) *App {
a.cardBackground = cardBackground
return a
}
func (a *App) CardBackgroundGet() string {
return a.cardBackground
}
func (a *App) CardColor(cardColor string) *App {
a.cardColor = cardColor
return a
}
func (a *App) CardColorGet() string {
return a.cardColor
}
func (a *App) ButtonBar(bar []l.Widget) *App {
a.buttonBar = bar
return a
}
func (a *App) ButtonBarGet() (bar []l.Widget) {
return a.buttonBar
}
func (a *App) HideSideBar(hideSideBar bool) *App {
a.hideSideBar = hideSideBar
return a
}
func (a *App) HideSideBarGet() bool {
return a.hideSideBar
}
func (a *App) HideTitleBar(hideTitleBar bool) *App {
a.hideTitleBar = hideTitleBar
return a
}
func (a *App) HideTitleBarGet() bool {
return a.hideTitleBar
}
func (a *App) Layers(widgets []l.Widget) *App {
a.layers = widgets
return a
}
func (a *App) LayersGet() []l.Widget {
return a.layers
}
func (a *App) MenuBackground(menuBackground string) *App {
a.menuBackground = menuBackground
return a
}
func (a *App) MenuBackgroundGet() string {
return a.menuBackground
}
func (a *App) MenuColor(menuColor string) *App {
a.menuColor = menuColor
return a
}
func (a *App) MenuColorGet() string {
return a.menuColor
}
func (a *App) MenuIcon(menuIcon *[]byte) *App {
a.menuIcon = menuIcon
return a
}
func (a *App) MenuIconGet() *[]byte {
return a.menuIcon
}
func (a *App) Pages(widgets WidgetMap) *App {
a.pages = widgets
return a
}
func (a *App) PagesGet() WidgetMap {
return a.pages
}
func (a *App) Root(root *Stack) *App {
a.root = root
return a
}
func (a *App) RootGet() *Stack {
return a.root
}
func (a *App) SideBar(widgets []l.Widget) *App {
a.sideBar = widgets
return a
}
func (a *App) SideBarBackground(sideBarBackground string) *App {
a.sideBarBackground = sideBarBackground
return a
}
func (a *App) SideBarBackgroundGet() string {
return a.sideBarBackground
}
func (a *App) SideBarColor(sideBarColor string) *App {
a.sideBarColor = sideBarColor
return a
}
func (a *App) SideBarColorGet() string {
return a.sideBarColor
}
func (a *App) SideBarGet() []l.Widget {
return a.sideBar
}
func (a *App) StatusBar(bar, barR []l.Widget) *App {
a.statusBar = bar
a.statusBarRight = barR
return a
}
func (a *App) StatusBarBackground(statusBarBackground string) *App {
a.statusBarBackground = statusBarBackground
return a
}
func (a *App) StatusBarBackgroundGet() string {
return a.statusBarBackground
}
func (a *App) StatusBarColor(statusBarColor string) *App {
a.statusBarColor = statusBarColor
return a
}
func (a *App) StatusBarColorGet() string {
return a.statusBarColor
}
func (a *App) StatusBarGet() (bar []l.Widget) {
return a.statusBar
}
func (a *App) Title(title string) *App {
a.title = title
return a
}
func (a *App) TitleBarBackground(TitleBarBackground string) *App {
a.bodyBackground = TitleBarBackground
return a
}
func (a *App) TitleBarBackgroundGet() string {
return a.titleBarBackground
}
func (a *App) TitleBarColor(titleBarColor string) *App {
a.titleBarColor = titleBarColor
return a
}
func (a *App) TitleBarColorGet() string {
return a.titleBarColor
}
func (a *App) TitleFont(font string) *App {
a.titleFont = font
return a
}
func (a *App) TitleFontGet() string {
return a.titleFont
}
func (a *App) TitleGet() string {
return a.title
}
func (a *App) Placeholder(title string) func(gtx l.Context) l.Dimensions {
return func(gtx l.Context) l.Dimensions {
return a.VFlex().
AlignMiddle().
SpaceSides().
Rigid(
a.Flex().
Flexed(0.5, EmptyMaxWidth()).
Rigid(
a.H1(title).Fn,
).
Flexed(0.5, EmptyMaxWidth()).
Fn,
).
Fn(gtx)
}
}