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ui: Add comments

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Hajime Hoshi 2018-10-13 22:41:21 +09:00
parent a073f48faf
commit b56061281d
1 changed files with 1 additions and 0 deletions
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internal/ui/ui_js.go
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@ -325,6 +325,7 @@ func init() {
canvas.Get("style").Set("outline", "none") canvas.Get("style").Set("outline", "none")
// Keyboard // Keyboard
// Don't 'preventDefault' on keydown events or keypress events wouldn't work (#715).
canvas.Call("addEventListener", "keydown", js.NewEventCallback(0, input.OnKeyDown)) canvas.Call("addEventListener", "keydown", js.NewEventCallback(0, input.OnKeyDown))
canvas.Call("addEventListener", "keypress", js.NewEventCallback(js.PreventDefault, input.OnKeyPress)) canvas.Call("addEventListener", "keypress", js.NewEventCallback(js.PreventDefault, input.OnKeyPress))
canvas.Call("addEventListener", "keyup", js.NewEventCallback(js.PreventDefault, input.OnKeyUp)) canvas.Call("addEventListener", "keyup", js.NewEventCallback(js.PreventDefault, input.OnKeyUp))