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Browser+WebContent+WebDriver: Move Take Screenshot to WebContent

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Timothy Flynn 2022-11-10 13:20:44 -05:00 • committed by Linus Groh
parent 40b9d248be
commit de1e882601
9 changed files with 29 additions and 39 deletions
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26
Userland/Services/WebContent/WebDriverConnection.cpp
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@ -26,6 +26,7 @@
#include <LibWeb/Page/Page.h>
#include <LibWeb/Platform/EventLoopPlugin.h>
#include <LibWeb/Platform/Timer.h>
#include <LibWeb/WebDriver/Screenshot.h>
#include <WebContent/ConnectionFromClient.h>
#include <WebContent/PageHost.h>
#include <WebContent/WebDriverConnection.h>
@ -714,6 +715,31 @@ Messages::WebDriverClient::IsElementEnabledResponse WebDriverConnection::is_elem
return make_success_response(enabled);
}
// 17.1 Take Screenshot, https://w3c.github.io/webdriver/#take-screenshot
Messages::WebDriverClient::TakeScreenshotResponse WebDriverConnection::take_screenshot()
{
// 1. If the current top-level browsing context is no longer open, return error with error code no such window.
TRY(ensure_open_top_level_browsing_context());
// 2. When the user agent is next to run the animation frame callbacks:
// a. Let root rect be the current top-level browsing context’s document element’s rectangle.
// b. Let screenshot result be the result of trying to call draw a bounding box from the framebuffer, given root rect as an argument.
// c. Let canvas be a canvas element of screenshot result’s data.
// d. Let encoding result be the result of trying encoding a canvas as Base64 canvas.
// e. Let encoded string be encoding result’s data.
auto* document = m_page_host.page().top_level_browsing_context().active_document();
auto root_rect = calculate_absolute_rect_of_element(m_page_host.page(), *document->document_element());
auto encoded_string = TRY(Web::WebDriver::capture_element_screenshot(
[&](auto const& rect, auto& bitmap) { m_page_host.paint(rect, bitmap); },
m_page_host.page(),
*document->document_element(),
root_rect));
// 3. Return success with data encoded string.
return make_success_response(move(encoded_string));
}
// https://w3c.github.io/webdriver/#dfn-no-longer-open
ErrorOr<void, Web::WebDriver::Error> WebDriverConnection::ensure_open_top_level_browsing_context()
{