From 31532e36a818b1c2719ee800690cbc416a8756a5 Mon Sep 17 00:00:00 2001
From: Tim Ledbetter <tim.ledbetter@ladybird.org>
Date: Wed, 15 Jan 2025 23:08:23 +0000
Subject: [PATCH] LibWeb: Add `AudioContext.createMediaElementSource()` factory
 method

---
 Libraries/LibWeb/WebAudio/AudioContext.cpp             |  8 ++++++++
 Libraries/LibWeb/WebAudio/AudioContext.h               |  3 +++
 Libraries/LibWeb/WebAudio/AudioContext.idl             |  2 +-
 .../audioparam-nominal-range.txt                       | 10 ++++++----
 4 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/Libraries/LibWeb/WebAudio/AudioContext.cpp b/Libraries/LibWeb/WebAudio/AudioContext.cpp
index 35f57d5a579..b91bb771475 100644
--- a/Libraries/LibWeb/WebAudio/AudioContext.cpp
+++ b/Libraries/LibWeb/WebAudio/AudioContext.cpp
@@ -342,4 +342,12 @@ bool AudioContext::start_rendering_audio_graph()
     return render_result;
 }
 
+// https://webaudio.github.io/web-audio-api/#dom-audiocontext-createmediaelementsource
+WebIDL::ExceptionOr<GC::Ref<MediaElementAudioSourceNode>> AudioContext::create_media_element_source(GC::Ptr<HTML::HTMLMediaElement> media_element)
+{
+    MediaElementAudioSourceOptions options;
+    options.media_element = media_element;
+    return MediaElementAudioSourceNode::create(realm(), *this, options);
+}
+
 }
diff --git a/Libraries/LibWeb/WebAudio/AudioContext.h b/Libraries/LibWeb/WebAudio/AudioContext.h
index 7aa02537d1d..8f606b634aa 100644
--- a/Libraries/LibWeb/WebAudio/AudioContext.h
+++ b/Libraries/LibWeb/WebAudio/AudioContext.h
@@ -9,6 +9,7 @@
 #include <LibWeb/Bindings/AudioContextPrototype.h>
 #include <LibWeb/HighResolutionTime/DOMHighResTimeStamp.h>
 #include <LibWeb/WebAudio/BaseAudioContext.h>
+#include <LibWeb/WebAudio/MediaElementAudioSourceNode.h>
 
 namespace Web::WebAudio {
 
@@ -39,6 +40,8 @@ public:
     WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> suspend();
     WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> close();
 
+    WebIDL::ExceptionOr<GC::Ref<MediaElementAudioSourceNode>> create_media_element_source(GC::Ptr<HTML::HTMLMediaElement>);
+
 private:
     explicit AudioContext(JS::Realm& realm)
         : BaseAudioContext(realm)
diff --git a/Libraries/LibWeb/WebAudio/AudioContext.idl b/Libraries/LibWeb/WebAudio/AudioContext.idl
index b8cee9b2e5d..7402b156bdb 100644
--- a/Libraries/LibWeb/WebAudio/AudioContext.idl
+++ b/Libraries/LibWeb/WebAudio/AudioContext.idl
@@ -13,7 +13,7 @@ interface AudioContext : BaseAudioContext {
     Promise<undefined> resume ();
     Promise<undefined> suspend ();
     Promise<undefined> close ();
-    [FIXME] MediaElementAudioSourceNode createMediaElementSource (HTMLMediaElement mediaElement);
+    MediaElementAudioSourceNode createMediaElementSource (HTMLMediaElement mediaElement);
     [FIXME] MediaStreamAudioSourceNode createMediaStreamSource (MediaStream mediaStream);
     [FIXME] MediaStreamTrackAudioSourceNode createMediaStreamTrackSource (MediaStreamTrack mediaStreamTrack);
     [FIXME] MediaStreamAudioDestinationNode createMediaStreamDestination ();
diff --git a/Tests/LibWeb/Text/expected/wpt-import/webaudio/the-audio-api/the-audioparam-interface/audioparam-nominal-range.txt b/Tests/LibWeb/Text/expected/wpt-import/webaudio/the-audio-api/the-audioparam-interface/audioparam-nominal-range.txt
index 7b983664e1c..4e04a3c942f 100644
--- a/Tests/LibWeb/Text/expected/wpt-import/webaudio/the-audio-api/the-audioparam-interface/audioparam-nominal-range.txt
+++ b/Tests/LibWeb/Text/expected/wpt-import/webaudio/the-audio-api/the-audioparam-interface/audioparam-nominal-range.txt
@@ -1,9 +1,9 @@
 Harness status: OK
 
-Found 304 tests
+Found 306 tests
 
-294 Pass
-10 Fail
+297 Pass
+9 Fail
 Pass	# AUDIT TASK RUNNER STARTED.
 Pass	Executing "initialize"
 Pass	Executing "Offline createGain"
@@ -24,7 +24,7 @@ Fail	Executing "Offline createScriptProcessor"
 Pass	Executing "Offline createPeriodicWave"
 Pass	Executing "Offline createChannelSplitter"
 Pass	Executing "Offline createChannelMerger"
-Fail	Executing "Online createMediaElementSource"
+Pass	Executing "Online createMediaElementSource"
 Fail	Executing "Online createMediaStreamDestination"
 Pass	Executing "AudioListener"
 Pass	Executing "verifyTests"
@@ -243,6 +243,8 @@ Pass	> [Offline createChannelMerger]
 Pass	  AudioNode has no AudioParams as expected
 Pass	< [Offline createChannelMerger] All assertions passed. (total 1 assertions)
 Pass	> [Online createMediaElementSource] 
+Pass	  MediaElementAudioSourceNode has no AudioParams as expected
+Pass	< [Online createMediaElementSource] All assertions passed. (total 1 assertions)
 Pass	> [Online createMediaStreamDestination] 
 Pass	> [AudioListener] 
 Pass	  AudioListener.positionX.minValue is equal to -3.4028234663852886e+38.