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Ladybird: Reimplement the DOM inspector :^)

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This has been broken since the switch to the multiprocess architecture
(and even before then was very limited).

This restores the previous functionally and also implements the ability
to inspect individual elements (by selecting them in the tree view).
The inspector also now correctly updates when navigating between pages.
This commit is contained in:
MacDue 2022-12-18 00:50:53 +00:00 • committed by Andrew Kaster
parent 0313814d3b
commit aa85a88158
5 changed files with 176 additions and 24 deletions
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76
Ladybird/InspectorWidget.cpp Normal file
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/*
* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#define AK_DONT_REPLACE_STD
#include "InspectorWidget.h"
#include <LibWebView/DOMTreeModel.h>
#include <QCloseEvent>
#include <QTreeView>
#include <QVBoxLayout>
namespace Ladybird {
InspectorWidget::InspectorWidget()
{
setLayout(new QVBoxLayout);
m_tree_view = new QTreeView;
m_tree_view->setHeaderHidden(true);
m_tree_view->expandToDepth(3);
layout()->addWidget(m_tree_view);
m_tree_view->setModel(&m_dom_model);
QObject::connect(m_tree_view->selectionModel(), &QItemSelectionModel::selectionChanged,
[this](QItemSelection const& selected, QItemSelection const&) {
auto indexes = selected.indexes();
if (indexes.size()) {
auto index = m_dom_model.to_gui(indexes.first());
set_selection(index);
}
});
}
void InspectorWidget::clear_dom_json()
{
m_dom_model.set_underlying_model(nullptr);
}
void InspectorWidget::set_dom_json(StringView dom_json)
{
m_dom_model.set_underlying_model(::WebView::DOMTreeModel::create(dom_json));
}
void InspectorWidget::closeEvent(QCloseEvent* event)
{
event->accept();
if (on_close)
on_close();
}
void InspectorWidget::set_selection(GUI::ModelIndex index)
{
if (!index.is_valid())
return;
auto* json = static_cast<JsonObject const*>(index.internal_data());
VERIFY(json);
Selection selection {};
if (json->has_u32("pseudo-element"sv)) {
selection.dom_node_id = json->get("parent-id"sv).to_i32();
selection.pseudo_element = static_cast<Web::CSS::Selector::PseudoElement>(json->get("pseudo-element"sv).to_u32());
} else {
selection.dom_node_id = json->get("id"sv).to_i32();
}
if (selection == m_selection)
return;
m_selection = selection;
VERIFY(on_dom_node_inspected);
on_dom_node_inspected(m_selection.dom_node_id, m_selection.pseudo_element);
}
}