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LibDevTools: Add a helper to extract a DOM node JSON object more easily

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The pattern of:

    auto tab = get_tab();
    auto walker = get_walker();

    if (tab && walker) {
        if (auto node = walker->dom_node(node_id)) {
            delegate().do_something(tab->description(), node);
        }
    }

Is getting a bit unergonomic and is often repeated. This patch just adds
a helper to WalkerActor to do most of this work, so now we have:

    if (auto node = WalkerActor::dom_node_for(get_walker(), node_id)) {
        delegate().do_something(node->tab->description(), node);
    }
This commit is contained in:
Timothy Flynn 2025-03-05 16:16:49 -05:00 • committed by Andreas Kling
commit ee88edc750
Notes: github-actions[bot] 2025-03-08 00:28:09 +00:00
5 changed files with 22 additions and 19 deletions
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10
Libraries/LibDevTools/Actors/HighlighterActor.cpp
View file

@ -39,15 +39,11 @@ void HighlighterActor::handle_message(StringView type, JsonObject const& message
return;
}
auto tab = InspectorActor::tab_for(m_inspector);
auto walker = InspectorActor::walker_for(m_inspector);
response.set("value"sv, false);
if (tab && walker) {
if (auto const& dom_node = walker->dom_node(*node); dom_node.has_value()) {
devtools().delegate().highlight_dom_node(tab->description(), dom_node->id, dom_node->pseudo_element);
response.set("value"sv, true);
}
if (auto dom_node = WalkerActor::dom_node_for(InspectorActor::walker_for(m_inspector), *node); dom_node.has_value()) {
devtools().delegate().highlight_dom_node(dom_node->tab->description(), dom_node->id, dom_node->pseudo_element);
response.set("value"sv, true);
}
send_message(move(response));