126 lines
2.9 KiB
Go
126 lines
2.9 KiB
Go
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package mobile
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import (
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"image/color"
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"fyne.io/fyne/v2"
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"fyne.io/fyne/v2/canvas"
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"fyne.io/fyne/v2/container"
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"fyne.io/fyne/v2/layout"
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"fyne.io/fyne/v2/theme"
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"fyne.io/fyne/v2/widget"
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)
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type menuLabel struct {
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widget.BaseWidget
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menu *fyne.Menu
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bar *fyne.Container
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canvas *mobileCanvas
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}
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func (m *menuLabel) Tapped(*fyne.PointEvent) {
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pos := fyne.CurrentApp().Driver().AbsolutePositionForObject(m)
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menu := widget.NewPopUpMenu(m.menu, m.canvas)
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menu.ShowAtPosition(fyne.NewPos(pos.X+m.Size().Width, pos.Y))
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menuDismiss := menu.OnDismiss // this dismisses the menu stack
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menu.OnDismiss = func() {
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menuDismiss()
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m.bar.Hide() // dismiss the overlay menu bar
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m.canvas.setMenu(nil)
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}
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}
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func (m *menuLabel) CreateRenderer() fyne.WidgetRenderer {
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label := widget.NewLabel(m.menu.Label)
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box := container.NewHBox(layout.NewSpacer(), label, layout.NewSpacer(), widget.NewIcon(theme.MenuExpandIcon()))
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return &menuLabelRenderer{menu: m, content: box}
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}
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func newMenuLabel(item *fyne.Menu, parent *fyne.Container, c *mobileCanvas) *menuLabel {
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l := &menuLabel{menu: item, bar: parent, canvas: c}
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l.ExtendBaseWidget(l)
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return l
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}
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func (c *mobileCanvas) showMenu(menu *fyne.MainMenu) {
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var panel *fyne.Container
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top := container.NewHBox(widget.NewButtonWithIcon("", theme.CancelIcon(), func() {
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panel.Hide()
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c.setMenu(nil)
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}))
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panel = container.NewVBox(top)
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for _, item := range menu.Items {
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panel.Add(newMenuLabel(item, panel, c))
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}
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if c.padded {
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panel = container.NewPadded(panel)
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}
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bg := canvas.NewRectangle(theme.BackgroundColor())
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shadow := canvas.NewHorizontalGradient(theme.ShadowColor(), color.Transparent)
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safePos, safeSize := c.InteractiveArea()
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bg.Move(safePos)
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bg.Resize(fyne.NewSize(panel.MinSize().Width+theme.Padding(), safeSize.Height))
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panel.Move(safePos)
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panel.Resize(fyne.NewSize(panel.MinSize().Width+theme.Padding(), safeSize.Height))
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shadow.Resize(fyne.NewSize(theme.Padding()/2, safeSize.Height))
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shadow.Move(fyne.NewPos(panel.Size().Width+safePos.X, safePos.Y))
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c.setMenu(container.NewWithoutLayout(bg, panel, shadow))
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}
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func (d *mobileDriver) findMenu(win *window) *fyne.MainMenu {
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if win.menu != nil {
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return win.menu
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}
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matched := false
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for x := len(d.windows) - 1; x >= 0; x-- {
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w := d.windows[x]
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if !matched {
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if w == win {
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matched = true
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}
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continue
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}
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if w.(*window).menu != nil {
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return w.(*window).menu
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}
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}
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return nil
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}
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type menuLabelRenderer struct {
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menu *menuLabel
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content *fyne.Container
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}
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func (m *menuLabelRenderer) BackgroundColor() color.Color {
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return theme.BackgroundColor()
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}
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func (m *menuLabelRenderer) Destroy() {
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}
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func (m *menuLabelRenderer) Layout(size fyne.Size) {
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m.content.Resize(size)
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}
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func (m *menuLabelRenderer) MinSize() fyne.Size {
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return m.content.MinSize()
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}
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func (m *menuLabelRenderer) Objects() []fyne.CanvasObject {
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return []fyne.CanvasObject{m.content}
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}
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func (m *menuLabelRenderer) Refresh() {
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m.content.Refresh()
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}
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