mirror of
https://github.com/SerenityOS/serenity
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![MacDue](/assets/img/avatar_default.png)
This adds "Inspect Element" (currently the only entry) to the context menu for the page, which will do what you expect (most of the time), and bring up the Inspector with hovered element selected.
186 lines
6 KiB
C++
186 lines
6 KiB
C++
/*
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* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWebView/AccessibilityTreeModel.h>
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#include <LibWebView/DOMTreeModel.h>
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#include <LibWebView/StylePropertiesModel.h>
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#include "InspectorWidget.h"
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#include <QCloseEvent>
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#include <QHeaderView>
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#include <QSplitter>
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#include <QStringList>
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#include <QTabWidget>
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#include <QTableView>
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#include <QTreeView>
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#include <QVBoxLayout>
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namespace Ladybird {
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InspectorWidget::InspectorWidget()
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{
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setLayout(new QVBoxLayout);
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auto splitter = new QSplitter(this);
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layout()->addWidget(splitter);
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splitter->setOrientation(Qt::Vertical);
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auto add_tab = [&](auto* tab_widget, auto* widget, auto name) {
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auto container = new QWidget;
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container->setLayout(new QVBoxLayout);
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container->layout()->addWidget(widget);
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tab_widget->addTab(container, name);
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};
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auto top_tap_widget = new QTabWidget;
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splitter->addWidget(top_tap_widget);
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m_dom_tree_view = new QTreeView;
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m_dom_tree_view->setHeaderHidden(true);
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m_dom_tree_view->setModel(&m_dom_model);
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QObject::connect(m_dom_tree_view->selectionModel(), &QItemSelectionModel::selectionChanged,
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[this](QItemSelection const& selected, QItemSelection const&) {
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auto indexes = selected.indexes();
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if (indexes.size()) {
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auto index = m_dom_model.to_gui(indexes.first());
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set_selection(index);
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}
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});
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add_tab(top_tap_widget, m_dom_tree_view, "DOM");
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auto accessibility_tree_view = new QTreeView;
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accessibility_tree_view->setHeaderHidden(true);
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accessibility_tree_view->setModel(&m_accessibility_model);
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add_tab(top_tap_widget, accessibility_tree_view, "Accessibility");
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auto add_table_tab = [&](auto* tab_widget, auto& model, auto name) {
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auto table_view = new QTableView;
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table_view->setModel(&model);
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table_view->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
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table_view->verticalHeader()->setVisible(false);
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table_view->horizontalHeader()->setVisible(false);
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add_tab(tab_widget, table_view, name);
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};
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auto node_tabs = new QTabWidget;
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add_table_tab(node_tabs, m_computed_style_model, "Computed");
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add_table_tab(node_tabs, m_resolved_style_model, "Resolved");
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add_table_tab(node_tabs, m_custom_properties_model, "Variables");
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splitter->addWidget(node_tabs);
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}
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void InspectorWidget::set_dom_json(StringView dom_json)
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{
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m_dom_model.set_underlying_model(WebView::DOMTreeModel::create(dom_json));
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m_dom_loaded = true;
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if (m_pending_selection.has_value())
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set_selection(m_pending_selection.release_value());
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else
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select_default_node();
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}
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void InspectorWidget::set_accessibility_json(StringView accessibility_json)
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{
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m_accessibility_model.set_underlying_model(WebView::AccessibilityTreeModel::create(accessibility_json));
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}
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void InspectorWidget::clear_dom_json()
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{
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m_dom_model.set_underlying_model(nullptr);
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// The accessibility tree is pretty much another form of the DOM tree, so should be cleared at the time time.
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m_accessibility_model.set_underlying_model(nullptr);
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clear_style_json();
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clear_selection();
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m_dom_loaded = false;
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}
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void InspectorWidget::load_style_json(StringView computed_style_json, StringView resolved_style_json, StringView custom_properties_json)
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{
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m_computed_style_model.set_underlying_model(WebView::StylePropertiesModel::create(computed_style_json));
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m_resolved_style_model.set_underlying_model(WebView::StylePropertiesModel::create(resolved_style_json));
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m_custom_properties_model.set_underlying_model(WebView::StylePropertiesModel::create(custom_properties_json));
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}
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void InspectorWidget::clear_style_json()
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{
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m_computed_style_model.set_underlying_model(nullptr);
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m_resolved_style_model.set_underlying_model(nullptr);
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m_custom_properties_model.set_underlying_model(nullptr);
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clear_selection();
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}
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void InspectorWidget::closeEvent(QCloseEvent* event)
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{
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event->accept();
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if (on_close)
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on_close();
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clear_selection();
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}
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void InspectorWidget::clear_selection()
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{
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m_selection = {};
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m_dom_tree_view->clearSelection();
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}
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void InspectorWidget::set_selection(Selection selection)
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{
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if (!m_dom_loaded) {
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m_pending_selection = selection;
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return;
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}
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auto* model = verify_cast<WebView::DOMTreeModel>(m_dom_model.underlying_model().ptr());
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auto index = model->index_for_node(selection.dom_node_id, selection.pseudo_element);
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auto qt_index = m_dom_model.to_qt(index);
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if (!qt_index.isValid()) {
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dbgln("Failed to set DOM inspector selection! Could not find valid model index for node: {}", selection.dom_node_id);
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return;
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}
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m_dom_tree_view->scrollTo(qt_index);
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m_dom_tree_view->setCurrentIndex(qt_index);
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}
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void InspectorWidget::select_default_node()
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{
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clear_style_json();
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m_dom_tree_view->collapseAll();
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m_dom_tree_view->setCurrentIndex({});
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}
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void InspectorWidget::set_selection(GUI::ModelIndex index)
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{
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if (!index.is_valid())
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return;
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auto* json = static_cast<JsonObject const*>(index.internal_data());
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VERIFY(json);
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Selection selection {};
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if (json->has_u32("pseudo-element"sv)) {
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selection.dom_node_id = json->get_i32("parent-id"sv).value();
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selection.pseudo_element = static_cast<Web::CSS::Selector::PseudoElement>(json->get_u32("pseudo-element"sv).value());
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} else {
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selection.dom_node_id = json->get_i32("id"sv).value();
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}
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if (selection == m_selection)
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return;
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m_selection = selection;
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VERIFY(on_dom_node_inspected);
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auto maybe_inspected_node_properties = on_dom_node_inspected(m_selection.dom_node_id, m_selection.pseudo_element);
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if (!maybe_inspected_node_properties.is_error()) {
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auto properties = maybe_inspected_node_properties.release_value();
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load_style_json(properties.computed_style_json, properties.resolved_style_json, properties.custom_properties_json);
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} else {
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clear_style_json();
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}
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}
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}
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