47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package ui
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import "opslag.de/schobers/geom"
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type DragDropEventTarget interface {
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DragEnter(geom.PointF32, []string)
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DragMove(geom.PointF32)
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DragLeave()
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Drop(geom.PointF32, []string)
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}
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type DragDropProvider interface {
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Register(windowHandle uintptr, target DragDropEventTarget)
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}
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var DefaultDragDropProvider DragDropProvider = nil
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type dragDropEventTarget struct {
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renderer Renderer
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events []Event
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}
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func (t *dragDropEventTarget) eventBase() EventBase {
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return EventBase{StampInSeconds: t.renderer.Stamp()}
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}
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func (t *dragDropEventTarget) pushEvent(e Event) {
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t.events = append(t.events, e)
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t.renderer.Refresh()
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}
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func (t *dragDropEventTarget) DragEnter(pos geom.PointF32, files []string) {
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t.pushEvent(&DisplayDragEnterEvent{EventBase: t.eventBase(), X: pos.X, Y: pos.Y, Files: files})
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}
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func (t *dragDropEventTarget) DragMove(pos geom.PointF32) {
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t.pushEvent(&DisplayDragMoveEvent{EventBase: t.eventBase(), X: pos.X, Y: pos.Y})
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}
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func (t *dragDropEventTarget) DragLeave() {
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t.pushEvent(&DisplayDragLeaveEvent{EventBase: t.eventBase()})
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}
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func (t *dragDropEventTarget) Drop(pos geom.PointF32, files []string) {
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t.pushEvent(&DisplayDropEvent{EventBase: t.eventBase(), X: pos.X, Y: pos.Y, Files: files})
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}
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