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WebDriver+Browser: Implement GET /session/{id}/screenshot

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This doesn't follow the spec to a tee. Our OutOfProcessWebView already
has a bitmap that can be used as the window screenshot. Therefore, we
can bypass the steps that assume we need to access the window's frame
buffer in-flight.

We also don't create an HTMLCanvasElement. We would need a Document in
the WebDriver process to do so. Instead, we can still run the encoding
steps exactly as-is using the screenshot bitmap.
This commit is contained in:
Timothy Flynn 2022-11-02 12:59:02 -04:00 • committed by Linus Groh
parent d603585802
commit 1ffaad29e1
8 changed files with 81 additions and 3 deletions
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3
Userland/Applications/Browser/WebDriverSessionClient.ipc
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@ -2,6 +2,7 @@
#include <AK/Vector.h>
#include <LibGfx/Point.h>
#include <LibGfx/Rect.h>
#include <LibGfx/ShareableBitmap.h>
#include <LibGfx/Size.h>
#include <LibWeb/Cookie/Cookie.h>
#include <LibWeb/Cookie/ParsedCookie.h>
@ -33,5 +34,5 @@ endpoint WebDriverSessionClient {
get_computed_value_for_element(i32 element_id, String property_name) => (String computed_value)
get_element_text(i32 element_id) => (String text)
get_element_tag_name(i32 element_id) => (String tag_name)
take_screenshot() => (Gfx::ShareableBitmap data)
}