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Ladybird: Support inspecting the accessibility tree

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This allows viewing the ARIA accessibility tree Epigenetic added
in #16430, but now in Ladybird!
This commit is contained in:
MacDue 2023-02-21 20:49:00 +01:00 committed by Linus Groh
parent 56d8e36698
commit 40bfaff133
Notes: sideshowbarker 2024-07-17 02:08:15 +09:00 
Author: https://github.com/MacDue
Commit: https://github.com/SerenityOS/serenity/commit/40bfaff133
Pull-request: https://github.com/SerenityOS/serenity/pull/17571
3 changed files with 40 additions and 13 deletions
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40
Ladybird/InspectorWidget.cpp
View file

@ -6,6 +6,7 @@
#define AK_DONT_REPLACE_STD
#include <LibWebView/AccessibilityTreeModel.h>
#include <LibWebView/DOMTreeModel.h>
#include <LibWebView/StylePropertiesModel.h>
@ -27,12 +28,21 @@ InspectorWidget::InspectorWidget()
auto splitter = new QSplitter(this);
layout()->addWidget(splitter);
splitter->setOrientation(Qt::Vertical);
auto tree_view = new QTreeView;
tree_view->setHeaderHidden(true);
tree_view->expandToDepth(3);
splitter->addWidget(tree_view);
tree_view->setModel(&m_dom_model);
QObject::connect(tree_view->selectionModel(), &QItemSelectionModel::selectionChanged,
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);
auto dom_tree_view = new QTreeView;
dom_tree_view->setHeaderHidden(true);
dom_tree_view->setModel(&m_dom_model);
QObject::connect(dom_tree_view->selectionModel(), &QItemSelectionModel::selectionChanged,
[this](QItemSelection const& selected, QItemSelection const&) {
auto indexes = selected.indexes();
if (indexes.size()) {
@ -40,17 +50,20 @@ InspectorWidget::InspectorWidget()
set_selection(index);
}
});
add_tab(top_tap_widget, 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 container = new QWidget;
auto table_view = new QTableView;
table_view->setModel(&model);
container->setLayout(new QVBoxLayout);
container->layout()->addWidget(table_view);
table_view->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
table_view->verticalHeader()->setVisible(false);
table_view->horizontalHeader()->setVisible(false);
tab_widget->addTab(container, name);
add_tab(tab_widget, table_view, name);
};
auto node_tabs = new QTabWidget;
@ -65,9 +78,16 @@ void InspectorWidget::set_dom_json(StringView dom_json)
m_dom_model.set_underlying_model(WebView::DOMTreeModel::create(dom_json));
}
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();
}

3
Ladybird/InspectorWidget.h
View file

@ -33,6 +33,8 @@ public:
void clear_dom_json();
void set_dom_json(StringView dom_json);
void set_accessibility_json(StringView accessibility_json);
void load_style_json(StringView computed_style_json, StringView resolved_style_json, StringView custom_properties_json);
void clear_style_json();
@ -46,6 +48,7 @@ private:
Selection m_selection;
ModelTranslator m_dom_model {};
ModelTranslator m_accessibility_model {};
ModelTranslator m_computed_style_model {};
ModelTranslator m_resolved_style_model {};
ModelTranslator m_custom_properties_model {};

10
Ladybird/WebContentView.cpp
View file

@ -532,6 +532,7 @@ void WebContentView::show_inspector()
ensure_inspector_widget();
m_inspector_widget->show();
inspect_dom_tree();
inspect_accessibility_tree();
}
void WebContentView::update_zoom()
@ -797,8 +798,10 @@ void WebContentView::notify_server_did_start_loading(Badge<WebContentClient>, AK
void WebContentView::notify_server_did_finish_loading(Badge<WebContentClient>, AK::URL const& url)
{
m_url = url;
if (is_inspector_open())
if (is_inspector_open()) {
inspect_dom_tree();
inspect_accessibility_tree();
}
if (on_load_finish)
on_load_finish(url);
}
@ -1050,9 +1053,10 @@ void WebContentView::notify_server_did_finish_handling_input_event(bool event_wa
(void)event_was_accepted;
}
void WebContentView::notify_server_did_get_accessibility_tree(DeprecatedString const&)
void WebContentView::notify_server_did_get_accessibility_tree(DeprecatedString const& accessibility_json)
{
dbgln("TODO: support accessibility tree in Ladybird");
if (m_inspector_widget)
m_inspector_widget->set_accessibility_json(accessibility_json);
}
ErrorOr<String> WebContentView::dump_layout_tree()