rui_orig/animationRun.go

140 lines
3.6 KiB
Go

package rui
func (animation *animationData) Start(view View, listener func(view View, animation Animation, event string)) bool {
if view == nil {
ErrorLog("nil View in animation.Start() function")
return false
}
if !animation.hasAnimatedProperty() {
return false
}
animation.view = view
animation.listener = listener
animation.oldAnimation = nil
if value := view.Get(AnimationTag); value != nil {
if oldAnimation, ok := value.([]Animation); ok && len(oldAnimation) > 0 {
animation.oldAnimation = oldAnimation
}
}
animation.oldListeners = map[string][]func(View, string){}
setListeners := func(event string, listener func(View, string)) {
var listeners []func(View, string) = nil
if value := view.Get(event); value != nil {
if oldListeners, ok := value.([]func(View, string)); ok && len(oldListeners) > 0 {
listeners = oldListeners
}
}
if listeners == nil {
view.Set(event, listener)
} else {
animation.oldListeners[event] = listeners
view.Set(event, append(listeners, listener))
}
}
setListeners(AnimationStartEvent, animation.onAnimationStart)
setListeners(AnimationEndEvent, animation.onAnimationEnd)
setListeners(AnimationCancelEvent, animation.onAnimationCancel)
setListeners(AnimationIterationEvent, animation.onAnimationIteration)
view.Set(AnimationTag, animation)
return true
}
func (animation *animationData) finish() {
if animation.view != nil {
for _, event := range []string{AnimationStartEvent, AnimationEndEvent, AnimationCancelEvent, AnimationIterationEvent} {
if listeners, ok := animation.oldListeners[event]; ok {
animation.view.Set(event, listeners)
} else {
animation.view.Remove(event)
}
}
if animation.oldAnimation != nil {
animation.view.Set(AnimationTag, animation.oldAnimation)
animation.oldAnimation = nil
} else {
animation.view.Set(AnimationTag, "")
}
animation.oldListeners = map[string][]func(View, string){}
animation.view = nil
animation.listener = nil
}
}
func (animation *animationData) Stop() {
animation.onAnimationCancel(animation.view, "")
}
func (animation *animationData) Pause() {
if animation.view != nil {
animation.view.Set(AnimationPaused, true)
}
}
func (animation *animationData) Resume() {
if animation.view != nil {
animation.view.Remove(AnimationPaused)
}
}
func (animation *animationData) onAnimationStart(view View, _ string) {
if animation.view != nil && animation.listener != nil {
animation.listener(animation.view, animation, AnimationStartEvent)
}
}
func (animation *animationData) onAnimationEnd(view View, _ string) {
if animation.view != nil {
animationView := animation.view
listener := animation.listener
if value, ok := animation.properties[PropertyTag]; ok {
if props, ok := value.([]AnimatedProperty); ok {
for _, prop := range props {
animationView.setRaw(prop.Tag, prop.To)
}
}
}
animation.finish()
if listener != nil {
listener(animationView, animation, AnimationEndEvent)
}
}
}
func (animation *animationData) onAnimationIteration(view View, _ string) {
if animation.view != nil && animation.listener != nil {
animation.listener(animation.view, animation, AnimationIterationEvent)
}
}
func (animation *animationData) onAnimationCancel(view View, _ string) {
if animation.view != nil {
animationView := animation.view
listener := animation.listener
if value, ok := animation.properties[PropertyTag]; ok {
if props, ok := value.([]AnimatedProperty); ok {
for _, prop := range props {
animationView.Set(prop.Tag, prop.To)
}
}
}
animation.finish()
if listener != nil {
listener(animationView, animation, AnimationCancelEvent)
}
}
}