webkitgtk-2.4.11webkitgtk-2.4.11

1 files changed, 189 insertions, 0 deletions

diff --git a/Source/WebCore/html/HTMLMediaSession.cpp b/Source/WebCore/html/HTMLMediaSession.cpp
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+++ b/Source/WebCore/html/HTMLMediaSession.cpp
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+/*
+ * Copyright (C) 2014 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#if ENABLE(VIDEO)
+
+#include "HTMLMediaSession.h"
+
+#include "HTMLMediaElement.h"
+#include "Logging.h"
+#include "MediaSessionManager.h"
+#include "Page.h"
+#include "ScriptController.h"
+
+#if PLATFORM(IOS)
+#include "AudioSession.h"
+#include "RuntimeApplicationChecksIOS.h"
+#endif
+
+namespace WebCore {
+
+static void initializeAudioSession()
+{
+#if PLATFORM(IOS)
+    static bool wasAudioSessionInitialized;
+    if (wasAudioSessionInitialized)
+        return;
+
+    wasAudioSessionInitialized = true;
+    if (!WebCore::applicationIsMobileSafari())
+        return;
+
+    AudioSession::sharedSession().setCategory(AudioSession::MediaPlayback);
+#endif
+}
+
+std::unique_ptr<HTMLMediaSession> HTMLMediaSession::create(MediaSessionClient& client)
+{
+    return std::make_unique<HTMLMediaSession>(client);
+}
+
+HTMLMediaSession::HTMLMediaSession(MediaSessionClient& client)
+    : MediaSession(client)
+    , m_restrictions(NoRestrictions)
+{
+    initializeAudioSession();
+}
+
+void HTMLMediaSession::addBehaviorRestriction(BehaviorRestrictions restriction)
+{
+    m_restrictions |= restriction;
+}
+
+void HTMLMediaSession::removeBehaviorRestriction(BehaviorRestrictions restriction)
+{
+    m_restrictions &= ~restriction;
+}
+
+bool HTMLMediaSession::playbackPermitted(const HTMLMediaElement&) const
+{
+    if (m_restrictions & RequireUserGestureForRateChange && !ScriptController::processingUserGesture()) {
+        LOG(Media, "HTMLMediaSession::playbackPermitted - returning FALSE");
+        return false;
+    }
+
+    return true;
+}
+
+bool HTMLMediaSession::dataLoadingPermitted(const HTMLMediaElement&) const
+{
+    if (m_restrictions & RequireUserGestureForLoad && !ScriptController::processingUserGesture()) {
+        LOG(Media, "HTMLMediaSession::dataLoadingPermitted - returning FALSE");
+        return false;
+    }
+
+    return true;
+}
+
+bool HTMLMediaSession::fullscreenPermitted(const HTMLMediaElement&) const
+{
+    if (m_restrictions & RequireUserGestureForFullscreen && !ScriptController::processingUserGesture()) {
+        LOG(Media, "HTMLMediaSession::fullscreenPermitted - returning FALSE");
+        return false;
+    }
+
+    return true;
+}
+
+bool HTMLMediaSession::pageAllowsDataLoading(const HTMLMediaElement& element) const
+{
+    Page* page = element.document().page();
+    if (m_restrictions & RequirePageConsentToLoadMedia && page && !page->canStartMedia()) {
+        LOG(Media, "HTMLMediaSession::pageAllowsDataLoading - returning FALSE");
+        return false;
+    }
+
+    return true;
+}
+
+bool HTMLMediaSession::pageAllowsPlaybackAfterResuming(const HTMLMediaElement& element) const
+{
+    Page* page = element.document().page();
+    if (m_restrictions & RequirePageConsentToResumeMedia && page && !page->canStartMedia()) {
+        LOG(Media, "HTMLMediaSession::pageAllowsPlaybackAfterResuming - returning FALSE");
+        return false;
+    }
+
+    return true;
+}
+
+#if ENABLE(IOS_AIRPLAY)
+bool HTMLMediaSession::showingPlaybackTargetPickerPermitted(const HTMLMediaElement&) const
+{
+    if (m_restrictions & RequireUserGestureToShowPlaybackTargetPicker && !ScriptController::processingUserGesture()) {
+        LOG(Media, "HTMLMediaSession::showingPlaybackTargetPickerPermitted - returning FALSE");
+        return false;
+    }
+
+    return true;
+}
+#endif
+
+MediaPlayer::Preload HTMLMediaSession::effectivePreloadForElement(const HTMLMediaElement& element) const
+{
+    MediaSessionManager::SessionRestrictions restrictions = MediaSessionManager::sharedManager().restrictions(mediaType());
+    MediaPlayer::Preload preload = element.preloadValue();
+
+    if ((restrictions & MediaSessionManager::MetadataPreloadingNotPermitted) == MediaSessionManager::MetadataPreloadingNotPermitted)
+        return MediaPlayer::None;
+
+    if ((restrictions & MediaSessionManager::AutoPreloadingNotPermitted) == MediaSessionManager::AutoPreloadingNotPermitted) {
+        if (preload > MediaPlayer::MetaData)
+            return MediaPlayer::MetaData;
+    }
+
+    return preload;
+}
+
+void HTMLMediaSession::clientWillBeginPlayback() const
+{
+    MediaSessionManager::sharedManager().sessionWillBeginPlayback(*this);
+}
+
+bool HTMLMediaSession::requiresFullscreenForVideoPlayback(const HTMLMediaElement& element) const
+{
+    if (!MediaSessionManager::sharedManager().sessionRestrictsInlineVideoPlayback(*this))
+        return false;
+
+    Settings* settings = element.document().settings();
+    if (!settings || !settings->mediaPlaybackAllowsInline())
+        return true;
+
+    if (element.fastHasAttribute(HTMLNames::webkit_playsinlineAttr))
+        return false;
+
+#if PLATFORM(IOS)
+    if (applicationIsDumpRenderTree())
+        return false;
+#endif
+
+    return true;
+}
+
+}
+
+#endif // ENABLE(VIDEO)