mirror of
https://github.com/diamondburned/cchat-gtk.git
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137 lines
3 KiB
Go
137 lines
3 KiB
Go
// Package sadface provides different views for the message container.
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package sadface
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import (
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"strings"
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"github.com/diamondburned/cchat-gtk/internal/ui/primitives"
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"github.com/gotk3/gotk3/gtk"
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)
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const FaceSize = 56
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type FaceView struct {
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gtk.Stack
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placeholder gtk.IWidget
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Face *Container
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Loading *Spinner
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}
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func New(parent gtk.IWidget, placeholder gtk.IWidget) *FaceView {
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c := NewContainer()
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c.Show()
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s := NewSpinner()
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s.Show()
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// make an empty box for an empty page.
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b, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
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stack, _ := gtk.StackNew()
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stack.SetTransitionType(gtk.STACK_TRANSITION_TYPE_CROSSFADE)
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stack.AddNamed(parent, "main")
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stack.AddNamed(placeholder, "placeholder")
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stack.AddNamed(c, "face")
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stack.AddNamed(s, "loading")
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stack.AddNamed(b, "empty")
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// Show placeholder by default.
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stack.SetVisibleChildName("placeholder")
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return &FaceView{*stack, placeholder, c, s}
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}
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// Reset brings the view to an empty box.
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func (v *FaceView) Reset() {
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v.Loading.Spinner.Stop()
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v.Stack.SetVisibleChildName("empty")
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v.ensurePlaceholderDestroyed()
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}
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func (v *FaceView) SetMain() {
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v.Loading.Spinner.Stop()
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v.Stack.SetVisibleChildName("main")
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v.ensurePlaceholderDestroyed()
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}
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func (v *FaceView) SetLoading() {
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v.Loading.Spinner.Start()
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v.Stack.SetVisibleChildName("loading")
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v.ensurePlaceholderDestroyed()
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}
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func (v *FaceView) SetError(err error) {
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v.Face.SetError(err)
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v.Stack.SetVisibleChildName("face")
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v.ensurePlaceholderDestroyed()
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v.Loading.Spinner.Stop()
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}
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func (v *FaceView) ensurePlaceholderDestroyed() {
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// If the placeholder is still there:
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if v.placeholder != nil {
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// Safely remove the placeholder from the stack.
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if v.Stack.GetVisibleChildName() == "placeholder" {
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v.Stack.SetVisibleChildName("empty")
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}
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// Remove the placeholder widget.
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v.Stack.Remove(v.placeholder)
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v.placeholder = nil
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}
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}
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type Spinner struct {
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gtk.Box
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Spinner *gtk.Spinner
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}
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func NewSpinner() *Spinner {
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s, _ := gtk.SpinnerNew()
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s.SetSizeRequest(FaceSize, FaceSize)
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s.Show()
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b, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
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b.Add(s)
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b.SetHAlign(gtk.ALIGN_CENTER)
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b.SetVAlign(gtk.ALIGN_CENTER)
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return &Spinner{*b, s}
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}
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type Container struct {
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gtk.Box
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Face *gtk.Image
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Error *gtk.Label
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}
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func NewContainer() *Container {
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face, _ := gtk.ImageNew()
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face.SetSizeRequest(FaceSize, FaceSize)
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face.Show()
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primitives.SetImageIcon(face, "face-sad-symbolic", FaceSize)
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errlabel, _ := gtk.LabelNew("")
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errlabel.SetOpacity(0.75) // low contrast good because unreadable
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errlabel.Show()
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box, _ := gtk.BoxNew(gtk.ORIENTATION_VERTICAL, 15)
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box.SetVAlign(gtk.ALIGN_CENTER)
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box.SetHAlign(gtk.ALIGN_CENTER)
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box.PackStart(face, false, false, 0)
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box.PackStart(errlabel, false, false, 0)
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return &Container{*box, face, errlabel}
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}
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// SetError sets the view to display the error. Error must not be nil.
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func (v *Container) SetError(err error) {
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// Split the error.
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parts := strings.Split(err.Error(), ": ")
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v.Error.SetLabel("Error: " + parts[len(parts)-1])
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// Use the full error for the tooltip.
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v.Box.SetTooltipText(err.Error())
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}
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