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LibWebView+Ladybird: Remove now-unused WebView TreeModel
This was used to provided base functionality for model-based chromes for viewing the DOM and accessibility trees. All chromes now use the WebView inspector model for those trees, thus this class is unused.
This commit is contained in:
Timothy Flynn
Andreas Kling
parent
84c4eef565
commit
c03b69e664
6 changed files with 0 additions and 333 deletions
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@ -10,7 +10,6 @@ set(SOURCES
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RequestServerAdapter.cpp
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SearchEngine.cpp
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SourceHighlighter.cpp
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TreeModel.cpp
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URL.cpp
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UserAgent.cpp
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ViewImplementation.cpp
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@ -1,205 +0,0 @@
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/*
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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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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/JsonObject.h>
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#include <AK/StringBuilder.h>
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#include <LibWeb/Infra/Strings.h>
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#include <LibWebView/TreeModel.h>
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namespace WebView {
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TreeModel::TreeModel(Type type, JsonValue tree)
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: m_type(type)
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, m_tree(move(tree))
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{
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prepare_node_maps(&m_tree.as_object(), nullptr);
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}
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TreeModel::~TreeModel() = default;
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void TreeModel::prepare_node_maps(JsonObject const* node, JsonObject const* parent_node)
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{
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m_node_to_parent_map.set(node, parent_node);
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if (auto id = node->get_integer<i32>("id"sv); id.has_value()) {
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m_node_id_to_node_map.set(*id, node);
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}
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if (auto children = node->get_array("children"sv); children.has_value()) {
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children->for_each([&](auto const& child) {
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prepare_node_maps(&child.as_object(), node);
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});
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}
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}
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int TreeModel::row_count(ModelIndex const& parent) const
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{
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if (!parent.is_valid())
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return 1;
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auto const& node = *static_cast<JsonObject const*>(parent.internal_data);
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auto children = node.get_array("children"sv);
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return children.has_value() ? static_cast<int>(children->size()) : 0;
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}
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int TreeModel::column_count(ModelIndex const&) const
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{
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return 1;
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}
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ModelIndex TreeModel::index(int row, int column, ModelIndex const& parent) const
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{
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if (!parent.is_valid())
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return { row, column, &m_tree.as_object() };
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auto const& parent_node = *static_cast<JsonObject const*>(parent.internal_data);
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auto children = parent_node.get_array("children"sv);
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if (!children.has_value())
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return { row, column, &m_tree.as_object() };
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auto const& child_node = children->at(row).as_object();
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return { row, column, &child_node };
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}
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ModelIndex TreeModel::parent(ModelIndex const& index) const
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{
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// FIXME: Handle the template element (child elements are not stored in it, all of its children are in its document fragment "content")
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// Probably in the JSON generation in Node.cpp?
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if (!index.is_valid())
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return {};
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auto const& node = *static_cast<JsonObject const*>(index.internal_data);
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auto const* parent_node = get_parent(node);
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if (!parent_node)
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return {};
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// If the parent is the root document, we know it has index 0, 0
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if (parent_node == &m_tree.as_object())
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return { 0, 0, parent_node };
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// Otherwise, we need to find the grandparent, to find the index of parent within that
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auto const* grandparent_node = get_parent(*parent_node);
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VERIFY(grandparent_node);
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auto grandparent_children = grandparent_node->get_array("children"sv);
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if (!grandparent_children.has_value())
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return {};
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for (size_t grandparent_child_index = 0; grandparent_child_index < grandparent_children->size(); ++grandparent_child_index) {
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auto const& child = grandparent_children->at(grandparent_child_index).as_object();
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if (&child == parent_node)
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return { static_cast<int>(grandparent_child_index), 0, parent_node };
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}
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return {};
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}
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static String accessibility_tree_text_for_display(JsonObject const& node, StringView type)
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{
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auto role = node.get_deprecated_string("role"sv).value_or({});
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if (type == "text")
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return MUST(Web::Infra::strip_and_collapse_whitespace(node.get_deprecated_string("text"sv).value()));
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if (type != "element")
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return MUST(String::from_deprecated_string(role));
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auto name = node.get_deprecated_string("name"sv).value_or({});
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auto description = node.get_deprecated_string("description"sv).value_or({});
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StringBuilder builder;
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builder.append(role.to_lowercase());
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builder.appendff(" name: \"{}\", description: \"{}\"", name, description);
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return MUST(builder.to_string());
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}
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static String dom_tree_text_for_display(JsonObject const& node, StringView type)
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{
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auto name = node.get_deprecated_string("name"sv).value_or({});
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if (type == "text"sv)
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return MUST(Web::Infra::strip_and_collapse_whitespace(node.get_deprecated_string("text"sv).value()));
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if (type == "comment"sv)
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return MUST(String::formatted("<!--{}-->", node.get_deprecated_string("data"sv).value()));
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if (type == "shadow-root"sv)
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return MUST(String::formatted("{} ({})", name, node.get_deprecated_string("mode"sv).value()));
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if (type != "element"sv)
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return MUST(String::from_deprecated_string(name));
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StringBuilder builder;
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builder.append('<');
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builder.append(name.to_lowercase());
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if (node.has("attributes"sv)) {
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auto attributes = node.get_object("attributes"sv).value();
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attributes.for_each_member([&builder](auto const& name, JsonValue const& value) {
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builder.append(' ');
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builder.append(name);
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builder.append('=');
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builder.append('"');
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builder.append(value.to_deprecated_string());
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builder.append('"');
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});
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}
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builder.append('>');
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return MUST(builder.to_string());
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}
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String TreeModel::text_for_display(ModelIndex const& index) const
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{
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auto const& node = *static_cast<JsonObject const*>(index.internal_data);
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auto type = node.get_deprecated_string("type"sv).value_or("unknown"sv);
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switch (m_type) {
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case Type::AccessibilityTree:
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return accessibility_tree_text_for_display(node, type);
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case Type::DOMTree:
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return dom_tree_text_for_display(node, type);
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}
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VERIFY_NOT_REACHED();
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}
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ModelIndex TreeModel::index_for_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement> const& pseudo_element) const
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{
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if (auto const* node = m_node_id_to_node_map.get(node_id).value_or(nullptr)) {
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if (pseudo_element.has_value()) {
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// Find pseudo-element child of the node.
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auto node_children = node->get_array("children"sv);
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for (size_t i = 0; i < node_children->size(); i++) {
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auto const& child = node_children->at(i).as_object();
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if (!child.has("pseudo-element"sv))
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continue;
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auto child_pseudo_element = child.get_i32("pseudo-element"sv);
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if (child_pseudo_element == to_underlying(pseudo_element.value()))
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return { static_cast<int>(i), 0, &child };
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}
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} else {
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auto const* parent = get_parent(*node);
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if (!parent)
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return {};
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auto parent_children = parent->get_array("children"sv);
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for (size_t i = 0; i < parent_children->size(); i++) {
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if (&parent_children->at(i).as_object() == node)
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return { static_cast<int>(i), 0, node };
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}
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}
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}
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dbgln("Didn't find index for node {}, pseudo-element {}!", node_id, pseudo_element.has_value() ? Web::CSS::pseudo_element_name(pseudo_element.value()) : "NONE"sv);
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return {};
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}
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}
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@ -1,55 +0,0 @@
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/*
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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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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.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/JsonValue.h>
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#include <AK/Optional.h>
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#include <AK/String.h>
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#include <LibWeb/CSS/Selector.h>
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#include <LibWebView/ModelIndex.h>
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namespace WebView {
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class TreeModel {
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public:
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enum class Type {
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AccessibilityTree,
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DOMTree,
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};
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TreeModel(Type, JsonValue tree);
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~TreeModel();
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int row_count(ModelIndex const& parent) const;
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int column_count(ModelIndex const& parent) const;
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ModelIndex index(int row, int column, ModelIndex const& parent) const;
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ModelIndex parent(ModelIndex const& index) const;
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String text_for_display(ModelIndex const& index) const;
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ModelIndex index_for_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement> const& pseudo_element) const;
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private:
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ALWAYS_INLINE JsonObject const* get_parent(JsonObject const& node) const
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{
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auto parent_node = m_node_to_parent_map.get(&node);
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VERIFY(parent_node.has_value());
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return *parent_node;
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}
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void prepare_node_maps(JsonObject const* node, JsonObject const* parent_node);
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Type m_type;
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JsonValue m_tree;
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HashMap<JsonObject const*, JsonObject const*> m_node_to_parent_map;
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HashMap<i32, JsonObject const*> m_node_id_to_node_map;
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};
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}
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