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WebContent: Support inspection of DOM in nested browsing contexts

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This lets user select a node from a nested browsing context in the
Inspector (e.g. a node inside an `iframe` document) to highlight it on
the page.
This commit is contained in:
Vyacheslav Pukhanov 2021-11-24 20:05:39 +03:00 • committed by Andreas Kling
parent 3f006d81fe
commit dee02ab30a
1 changed files with 31 additions and 25 deletions
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56
Userland/Services/WebContent/ClientConnection.cpp
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@ -235,36 +235,42 @@ void ClientConnection::inspect_dom_tree()
Messages::WebContentServer::InspectDomNodeResponse ClientConnection::inspect_dom_node(i32 node_id)
{
if (auto* doc = page().top_level_browsing_context().active_document()) {
Web::DOM::Node* node = Web::DOM::Node::from_id(node_id);
if (!node || (&node->document() != doc)) {
doc->set_inspected_node(nullptr);
auto& top_context = page().top_level_browsing_context();
top_context.for_each_in_inclusive_subtree([&](auto& ctx) {
if (ctx.active_document() != nullptr) {
ctx.active_document()->set_inspected_node(nullptr);
}
return IterationDecision::Continue;
});
Web::DOM::Node* node = Web::DOM::Node::from_id(node_id);
if (!node) {
return { false, "", "" };
}
node->document().set_inspected_node(node);
if (node->is_element()) {
auto& element = verify_cast<Web::DOM::Element>(*node);
if (!element.specified_css_values())
return { false, "", "" };
}
doc->set_inspected_node(node);
auto serialize_json = [](Web::CSS::StyleProperties const& properties) -> String {
StringBuilder builder;
if (node->is_element()) {
auto& element = verify_cast<Web::DOM::Element>(*node);
if (!element.specified_css_values())
return { false, "", "" };
JsonObjectSerializer serializer(builder);
properties.for_each_property([&](auto property_id, auto& value) {
serializer.add(Web::CSS::string_from_property_id(property_id), value.to_string());
});
serializer.finish();
auto serialize_json = [](Web::CSS::StyleProperties const& properties) -> String {
StringBuilder builder;
return builder.to_string();
};
JsonObjectSerializer serializer(builder);
properties.for_each_property([&](auto property_id, auto& value) {
serializer.add(Web::CSS::string_from_property_id(property_id), value.to_string());
});
serializer.finish();
return builder.to_string();
};
String specified_values_json = serialize_json(*element.specified_css_values());
String computed_values_json = serialize_json(element.computed_style());
return { true, specified_values_json, computed_values_json };
}
String specified_values_json = serialize_json(*element.specified_css_values());
String computed_values_json = serialize_json(element.computed_style());
return { true, specified_values_json, computed_values_json };
}
return { false, "", "" };