ladybird/Applications/Browser/InspectorWidget.cpp

/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "InspectorWidget.h"
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Splitter.h>
#include <LibGUI/TabWidget.h>
#include <LibGUI/TableView.h>
#include <LibGUI/TreeView.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/DOMTreeModel.h>
#include <LibWeb/LayoutTreeModel.h>
#include <LibWeb/StylePropertiesModel.h>

namespace Browser {

void InspectorWidget::set_inspected_node(Web::DOM::Node* node)
{
    m_document->set_inspected_node(node);
    if (node && node->is_element()) {
        auto& element = downcast<Web::DOM::Element>(*node);
        if (element.resolved_style()) {
            m_style_table_view->set_model(Web::StylePropertiesModel::create(*element.resolved_style()));
            m_computed_style_table_view->set_model(Web::StylePropertiesModel::create(*element.computed_style()));
        }
    } else {
        m_style_table_view->set_model(nullptr);
        m_computed_style_table_view->set_model(nullptr);
    }
}

InspectorWidget::InspectorWidget()
{
    set_layout<GUI::VerticalBoxLayout>();
    auto& splitter = add<GUI::VerticalSplitter>();

    auto& top_tab_widget = splitter.add<GUI::TabWidget>();

    m_dom_tree_view = top_tab_widget.add_tab<GUI::TreeView>("DOM");
    m_dom_tree_view->on_selection = [this](auto& index) {
        auto* node = static_cast<Web::DOM::Node*>(index.internal_data());
        set_inspected_node(node);
    };

    m_layout_tree_view = top_tab_widget.add_tab<GUI::TreeView>("Layout");
    m_layout_tree_view->on_selection = [this](auto& index) {
        auto* node = static_cast<Web::LayoutNode*>(index.internal_data());
        set_inspected_node(node->node());
    };

    auto& bottom_tab_widget = splitter.add<GUI::TabWidget>();

    m_style_table_view = bottom_tab_widget.add_tab<GUI::TableView>("Styles");
    m_computed_style_table_view = bottom_tab_widget.add_tab<GUI::TableView>("Computed");
}

InspectorWidget::~InspectorWidget()
{
}

void InspectorWidget::set_document(Web::DOM::Document* document)
{
    if (m_document == document)
        return;
    m_document = document;
    m_dom_tree_view->set_model(Web::DOMTreeModel::create(*document));
    m_layout_tree_view->set_model(Web::LayoutTreeModel::create(*document));
}

}