84 lines
1.5 KiB
Text
84 lines
1.5 KiB
Text
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gui.Widget = {
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# enum FocusPolicy:
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NoFocus: 0,
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TabFocus: 1,
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ClickFocus: 2,
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StrongFocus: 1 + 2,
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#
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new: func(derived)
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{
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return {
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parents: [derived, gui.Widget],
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_focused: 0,
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_focus_policy: gui.Widget.NoFocus,
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_hover: 0,
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_root: nil
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};
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},
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# Move the widget to the given position (relative to its parent)
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move: func(x, y)
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{
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me._root.setTranslation(x, y);
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return me;
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},
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#
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setFocus: func
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{
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if( me._focused )
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return me;
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if( me._window._focused_widget != nil )
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me._window._focused_widget.clearFocus();
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me._focused = 1;
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me._window._focused_widget = me;
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me.onFocusIn();
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me._onStateChange();
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return me;
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},
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#
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clearFocus: func
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{
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if( !me._focused )
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return me;
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me._focused = 0;
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me._window._focused_widget = nil;
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me.onFocusOut();
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me._onStateChange();
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return me;
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},
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onFocusIn: func {},
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onFocusOut: func {},
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onMouseEnter: func {},
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onMouseLeave: func {},
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# protected:
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_onStateChange: func {},
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_setRoot: func(el)
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{
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me._root = el;
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el.addEventListener("mouseenter", func {
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me._hover = 1;
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me.onMouseEnter();
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me._onStateChange();
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});
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el.addEventListener("mousedown", func {
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if( bits.test(me._focus_policy, me.ClickFocus / 2) )
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{
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me.setFocus();
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me._window.setFocus();
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}
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});
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el.addEventListener("mouseleave", func {
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me._hover = 0;
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me.onMouseLeave();
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me._onStateChange();
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});
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}
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};
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