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WebContent: Add more IPC endpoints for getting Elements

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This patch adds `get_document_element()` and `query_selector_all()`
which return Node's IDs.

    `get_document_element` returns the ID of the document element

    `query_selector_all` returns the IDs of all elements matching the
    selector starting at the Node associated with the start_node_id
This commit is contained in:
Tobias Christiansen 2022-10-18 12:40:14 +02:00 • committed by Linus Groh
parent d3353ee0e7
commit 281991057c
3 changed files with 41 additions and 0 deletions
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35
Userland/Services/WebContent/ConnectionFromClient.cpp
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@ -2,6 +2,7 @@
* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2022, Tobias Christiansen <tobyase@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -19,6 +20,7 @@
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/Cookie/ParsedCookie.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/NodeList.h>
#include <LibWeb/Dump.h>
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/HTML/Scripting/ClassicScript.h>
@ -438,6 +440,39 @@ void ConnectionFromClient::js_console_request_messages(i32 start_index)
m_console_client->send_messages(start_index);
}
Messages::WebContentServer::GetDocumentElementResponse ConnectionFromClient::get_document_element()
{
auto* document = page().top_level_browsing_context().active_document();
if (!document)
return { {} };
return { document->id() };
}
Messages::WebContentServer::QuerySelectorAllResponse ConnectionFromClient::query_selector_all(i32 start_node_id, String const& selector)
{
auto* start_node = Web::DOM::Node::from_id(start_node_id);
if (!start_node)
return { {} };
if (!start_node->is_element() && !start_node->is_document())
return { {} };
auto& start_element = verify_cast<Web::DOM::ParentNode>(*start_node);
auto result = start_element.query_selector_all(selector);
if (result.is_error())
return { {} };
auto element_list = result.release_value();
Vector<i32> return_list;
for (u32 i = 0; i < element_list->length(); i++) {
auto node = element_list->item(i);
return_list.append(node->id());
}
return { return_list };
}
Messages::WebContentServer::GetSelectedTextResponse ConnectionFromClient::get_selected_text()
{
return page().focused_context().selected_text();