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annotate libervia/web/pages/_browser/tools.py @ 1629:961468588131 default tip

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doc (chat): Add documentation for message origin: fix 459
author Goffi <goffi@goffi.org>
date Sun, 08 Jun 2025 17:29:39 +0200
parents 698eaabfca0e
children
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1 """Common useful tools"""
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2 from browser import window, html
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3
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4
4ab4bc3ae462 browser: new `tools` module with a first method to detect touch devices
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5 def is_touch_device():
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6 return hasattr(window, 'ontouchstart')
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7
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8
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9 def remove_ids(element):
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10 """Recursively remove "id" attribute of element and all its descendants."""
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11 element.removeAttribute('id')
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12
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13 for child in element.children:
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14 remove_ids(child)
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16
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17 def make_placeholder(original_elt, placeholder_class="visual-placeholder"):
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18 """Create a visual placeholder that matches an element's appearance.
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19
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20 The placeholder will be a clone of the original element but without any ID attributes
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21 to prevent DOM conflicts.
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22
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23 @param original_elt: Element to create placeholder for.
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24 @param placeholder_class: CSS class to add to placeholder element.
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25 @return: Placeholder element.
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26 """
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27 placeholder = original_elt.cloneNode(True)
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28 remove_ids(placeholder)
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29 placeholder.classList.add(placeholder_class)
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30 placeholder.attrs["aria-hidden"] = "true"
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31 placeholder.attrs["data-placeholder-for"] = original_elt.id or ""
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32 return placeholder