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https://github.com/fergalmoran/ladybird.git
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5ed91dc915
There is a lot needed all at once to actually inspect a tab's DOM tree. It begins with requesting a "watcher" from a TabActor. It seems there can be many types of watchers, but here we implement the "frame" watcher only. The watcher creates an "inspector", which in turn creates a "walker", which is the actor ultimately responsible for serializing and inspecting the DOM tree. In between all that, the DevTools client will send a handful of other informational requests. If we do not reply to these, the client will not move forward with the walker. For example, the CSSPropertiesActor will be asked for a list of all known CSS properties.
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
/*
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* Copyright (c) 2025, Tim Flynn <trflynn89@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/HashMap.h>
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#include <AK/JsonObject.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/Optional.h>
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#include <LibDevTools/Actor.h>
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namespace DevTools {
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class WalkerActor final : public Actor {
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public:
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static constexpr auto base_name = "walker"sv;
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static NonnullRefPtr<WalkerActor> create(DevToolsServer&, ByteString name, WeakPtr<TabActor>, JsonObject dom_tree);
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virtual ~WalkerActor() override;
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virtual void handle_message(StringView type, JsonObject const&) override;
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static bool is_suitable_for_dom_inspection(JsonValue const&);
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JsonValue serialize_root() const;
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private:
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WalkerActor(DevToolsServer&, ByteString name, WeakPtr<TabActor>, JsonObject dom_tree);
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JsonValue serialize_node(JsonObject const&) const;
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Optional<JsonObject const&> find_node_by_selector(JsonObject const& node, StringView selector);
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void populate_dom_tree_cache(JsonObject& node, JsonObject const* parent = nullptr);
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WeakPtr<TabActor> m_tab;
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JsonObject m_dom_tree;
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HashMap<JsonObject const*, JsonObject const*> m_dom_node_to_parent_map;
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HashMap<ByteString, JsonObject const*> m_actor_to_dom_node_map;
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size_t m_dom_node_count { 0 };
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};
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}
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