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https://github.com/RGBCube/serenity
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067f7ae60a
Currently, the DOM Inspector stores a numeric ID for each DOM node. This is used to look up the data for that node in the JSON representation of the DOM. The method to do this search performs a depth-first search through the JSON value, and is invoked quite frequently. Instead, we can just store a pointer to the JSON value in the index, and avoid this search altogether. This is similar to how the IPWV stores a pointer to the DOM node.
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2018-2020, Adam Hodgen <ant1441@gmail.com>
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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/JsonObject.h>
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#include <LibGUI/Model.h>
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#include <LibWeb/Forward.h>
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namespace Web {
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class DOMTreeJSONModel final : public GUI::Model {
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public:
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static NonnullRefPtr<DOMTreeJSONModel> create(StringView dom_tree)
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{
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auto json_or_error = JsonValue::from_string(dom_tree);
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if (!json_or_error.has_value())
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VERIFY_NOT_REACHED();
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return adopt_ref(*new DOMTreeJSONModel(json_or_error.value().as_object()));
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}
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virtual ~DOMTreeJSONModel() override;
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virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
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virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
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virtual GUI::Variant data(const GUI::ModelIndex&, GUI::ModelRole) const override;
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virtual GUI::ModelIndex index(int row, int column, const GUI::ModelIndex& parent = GUI::ModelIndex()) const override;
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virtual GUI::ModelIndex parent_index(const GUI::ModelIndex&) const override;
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virtual void update() override;
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private:
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explicit DOMTreeJSONModel(JsonObject);
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JsonObject const* find_parent_of_child_with_internal_id(size_t) const;
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JsonObject const* find_parent_of_child_with_internal_id(JsonObject const&, size_t) const;
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static size_t get_internal_id(const JsonObject& o);
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static JsonArray const* get_children(const JsonObject& o);
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GUI::Icon m_document_icon;
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GUI::Icon m_element_icon;
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GUI::Icon m_text_icon;
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JsonObject m_dom_tree;
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};
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}
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