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expressions: Add closure expressions

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James Westman 2022-04-30 13:27:54 -05:00
parent 8a7941dcbf
commit 3f7688a563
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6 changed files with 69 additions and 0 deletions
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11
tests/samples/expr_closure.blp Normal file
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using Gtk 4.0;
Box {
Box box {
}
}
Stack {
visible-child: bind ((Gtk.Button)my_closure(box.parent)).parent;
visible: bind (bool) my_other_closure(box);
}

25
tests/samples/expr_closure.ui Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<interface>
<requires lib="gtk" version="4.0"/>
<object class="GtkBox">
<child>
<object class="GtkBox" id="box"></object>
</child>
</object>
<object class="GtkStack">
<binding name="visible-child">
<lookup name="parent" type="GtkButton">
<closure function="my_closure" type="GtkButton">
<lookup name="parent">
<constant>box</constant>
</lookup>
</closure>
</lookup>
</binding>
<binding name="visible">
<closure function="my_other_closure" type="gboolean">
<constant>box</constant>
</closure>
</binding>
</object>
</interface>