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LibWeb+WebContent: Add APIs to control video playback state

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This allows for the browser process to control the play/pause state,
whether we paint user agent controls on the video, and whether the video
loops when it finishes playing.
This commit is contained in:
Timothy Flynn 2023-05-15 11:17:58 -04:00 • committed by Andreas Kling
parent d8f03dda08
commit c82f678fc6
9 changed files with 146 additions and 0 deletions
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80
Userland/Libraries/LibWeb/Page/Page.cpp
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@ -5,10 +5,12 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/ScopeGuard.h>
#include <AK/SourceLocation.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/HTML/EventLoop/EventLoop.h>
#include <LibWeb/HTML/HTMLVideoElement.h>
#include <LibWeb/HTML/Scripting/Environments.h>
#include <LibWeb/Page/Page.h>
#include <LibWeb/Platform/EventLoopPlugin.h>
@ -281,4 +283,82 @@ void Page::did_request_video_context_menu(i32 video_id, CSSPixelPoint position,
client().page_did_request_video_context_menu(position, url, target, modifiers, is_playing, has_user_agent_controls, is_looping);
}
WebIDL::ExceptionOr<void> Page::toggle_video_play_state()
{
auto video_element = video_context_menu_element();
if (!video_element)
return {};
// FIXME: This runs from outside the context of any user script, so we do not have a running execution
// context. This pushes one to allow the promise creation hook to run.
auto& environment_settings = video_element->document().relevant_settings_object();
environment_settings.prepare_to_run_script();
ScopeGuard guard { [&] { environment_settings.clean_up_after_running_script(); } };
if (video_element->potentially_playing())
TRY(video_element->pause());
else
TRY(video_element->play());
return {};
}
WebIDL::ExceptionOr<void> Page::toggle_video_loop_state()
{
auto video_element = video_context_menu_element();
if (!video_element)
return {};
// FIXME: This runs from outside the context of any user script, so we do not have a running execution
// context. This pushes one to allow the promise creation hook to run.
auto& environment_settings = video_element->document().relevant_settings_object();
environment_settings.prepare_to_run_script();
ScopeGuard guard { [&] { environment_settings.clean_up_after_running_script(); } };
if (video_element->has_attribute(HTML::AttributeNames::loop))
video_element->remove_attribute(HTML::AttributeNames::loop);
else
TRY(video_element->set_attribute(HTML::AttributeNames::loop, {}));
return {};
}
WebIDL::ExceptionOr<void> Page::toggle_video_controls_state()
{
auto video_element = video_context_menu_element();
if (!video_element)
return {};
// FIXME: This runs from outside the context of any user script, so we do not have a running execution
// context. This pushes one to allow the promise creation hook to run.
auto& environment_settings = video_element->document().relevant_settings_object();
environment_settings.prepare_to_run_script();
ScopeGuard guard { [&] { environment_settings.clean_up_after_running_script(); } };
if (video_element->has_attribute(HTML::AttributeNames::controls))
video_element->remove_attribute(HTML::AttributeNames::controls);
else
TRY(video_element->set_attribute(HTML::AttributeNames::controls, {}));
return {};
}
JS::GCPtr<HTML::HTMLVideoElement> Page::video_context_menu_element()
{
if (!m_video_context_menu_element_id.has_value())
return nullptr;
auto* dom_node = DOM::Node::from_id(*m_video_context_menu_element_id);
if (dom_node == nullptr)
return nullptr;
if (!is<HTML::HTMLVideoElement>(dom_node))
return nullptr;
return static_cast<HTML::HTMLVideoElement*>(dom_node);
}
}