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/*
* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWebView/AccessibilityTreeModel.h>
#include <LibWebView/DOMTreeModel.h>
#include <LibWebView/StylePropertiesModel.h>
#include "InspectorWidget.h"
#include <QCloseEvent>
#include <QHeaderView>
#include <QSplitter>
#include <QStringList>
#include <QTabWidget>
#include <QTableView>
#include <QTreeView>
#include <QVBoxLayout>
namespace Ladybird {
InspectorWidget::InspectorWidget()
{
setLayout(new QVBoxLayout);
auto splitter = new QSplitter(this);
layout()->addWidget(splitter);
splitter->setOrientation(Qt::Vertical);
auto add_tab = [&](auto* tab_widget, auto* widget, auto name) {
auto container = new QWidget;
container->setLayout(new QVBoxLayout);
container->layout()->addWidget(widget);
tab_widget->addTab(container, name);
};
auto top_tap_widget = new QTabWidget;
splitter->addWidget(top_tap_widget);
m_dom_tree_view = new QTreeView;
m_dom_tree_view->setHeaderHidden(true);
m_dom_tree_view->setModel(&m_dom_model);
QObject::connect(m_dom_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);
}
});
add_tab(top_tap_widget, m_dom_tree_view, "DOM");
auto accessibility_tree_view = new QTreeView;
accessibility_tree_view->setHeaderHidden(true);
accessibility_tree_view->setModel(&m_accessibility_model);
add_tab(top_tap_widget, accessibility_tree_view, "Accessibility");
auto add_table_tab = [&](auto* tab_widget, auto& model, auto name) {
auto table_view = new QTableView;
table_view->setModel(&model);
table_view->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
table_view->verticalHeader()->setVisible(false);
table_view->horizontalHeader()->setVisible(false);
add_tab(tab_widget, table_view, name);
};
auto node_tabs = new QTabWidget;
add_table_tab(node_tabs, m_computed_style_model, "Computed");
add_table_tab(node_tabs, m_resolved_style_model, "Resolved");
add_table_tab(node_tabs, m_custom_properties_model, "Variables");
splitter->addWidget(node_tabs);
}
void InspectorWidget::set_dom_json(StringView dom_json)
{
m_dom_model.set_underlying_model(WebView::DOMTreeModel::create(dom_json));
m_dom_loaded = true;
if (m_pending_selection.has_value())
set_selection(m_pending_selection.release_value());
else
select_default_node();
}
void InspectorWidget::set_accessibility_json(StringView accessibility_json)
{
m_accessibility_model.set_underlying_model(WebView::AccessibilityTreeModel::create(accessibility_json));
}
void InspectorWidget::clear_dom_json()
{
m_dom_model.set_underlying_model(nullptr);
// The accessibility tree is pretty much another form of the DOM tree, so should be cleared at the time time.
m_accessibility_model.set_underlying_model(nullptr);
clear_style_json();
clear_selection();
m_dom_loaded = false;
}
void InspectorWidget::load_style_json(StringView computed_style_json, StringView resolved_style_json, StringView custom_properties_json)
{
m_computed_style_model.set_underlying_model(WebView::StylePropertiesModel::create(computed_style_json));
m_resolved_style_model.set_underlying_model(WebView::StylePropertiesModel::create(resolved_style_json));
m_custom_properties_model.set_underlying_model(WebView::StylePropertiesModel::create(custom_properties_json));
}
void InspectorWidget::clear_style_json()
{
m_computed_style_model.set_underlying_model(nullptr);
m_resolved_style_model.set_underlying_model(nullptr);
m_custom_properties_model.set_underlying_model(nullptr);
clear_selection();
}
void InspectorWidget::closeEvent(QCloseEvent* event)
{
event->accept();
if (on_close)
on_close();
clear_selection();
}
void InspectorWidget::clear_selection()
{
m_selection = {};
m_dom_tree_view->clearSelection();
}
void InspectorWidget::set_selection(Selection selection)
{
if (!m_dom_loaded) {
m_pending_selection = selection;
return;
}
auto* model = verify_cast<WebView::DOMTreeModel>(m_dom_model.underlying_model().ptr());
auto index = model->index_for_node(selection.dom_node_id, selection.pseudo_element);
auto qt_index = m_dom_model.to_qt(index);
if (!qt_index.isValid()) {
dbgln("Failed to set DOM inspector selection! Could not find valid model index for node: {}", selection.dom_node_id);
return;
}
m_dom_tree_view->scrollTo(qt_index);
m_dom_tree_view->setCurrentIndex(qt_index);
}
void InspectorWidget::select_default_node()
{
clear_style_json();
m_dom_tree_view->collapseAll();
m_dom_tree_view->setCurrentIndex({});
}
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_i32("parent-id"sv).value();
selection.pseudo_element = static_cast<Web::CSS::Selector::PseudoElement>(json->get_u32("pseudo-element"sv).value());
} else {
selection.dom_node_id = json->get_i32("id"sv).value();
}
if (selection == m_selection)
return;
m_selection = selection;
VERIFY(on_dom_node_inspected);
auto maybe_inspected_node_properties = on_dom_node_inspected(m_selection.dom_node_id, m_selection.pseudo_element);
if (!maybe_inspected_node_properties.is_error()) {
auto properties = maybe_inspected_node_properties.release_value();
load_style_json(properties.computed_style_json, properties.resolved_style_json, properties.custom_properties_json);
} else {
clear_style_json();
}
}
}
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