void LayoutVTTCue::layout()
{
LayoutBlockFlow::layout();
// If WebVTT Regions are used, the regular WebVTT layout algorithm is no
// longer necessary, since cues having the region parameter set do not have
// any positioning parameters. Also, in this case, the regions themselves
// have positioning information.
if (!m_cue->regionId().isEmpty())
return;
ASSERT(firstChild());
LayoutState state(*this, locationOffset());
// Determine the area covered by the media controls, if any. If the controls
// are present, they are the next sibling of the text track container, which
// is our parent. (LayoutMedia ensures that the media controls are laid out
// before text tracks, so that the layout is up-to-date here.)
ASSERT(parent()->node()->isTextTrackContainer());
IntRect controlsRect;
if (LayoutObject* parentSibling = parent()->nextSibling()) {
// Only a part of the media controls is used for overlap avoidance.
MediaControls* controls = toMediaControls(parentSibling->node());
if (LayoutObject* controlsLayout = controls->layoutObjectForTextTrackLayout())
controlsRect = controlsLayout->absoluteBoundingBoxRect();
}
// http://dev.w3.org/html5/webvtt/#dfn-apply-webvtt-cue-settings - step 13.
if (m_cue->snapToLines()) {
SnapToLinesLayouter(*this, controlsRect, m_cue->calculateComputedLinePosition()).layout();
adjustForTopAndBottomMarginBorderAndPadding();
} else {
repositionCueSnapToLinesNotSet();
}
}
IntRect LayoutVTTCue::computeControlsRect() const {
// Determine the area covered by the media controls, if any. If the controls
// are present, they are the next sibling of the text track container, which
// is our parent. (LayoutMedia ensures that the media controls are laid out
// before text tracks, so that the layout is up to date here.)
DCHECK(parent()->node()->isTextTrackContainer());
LayoutObject* controlsContainer = parent()->nextSibling();
if (!controlsContainer)
return IntRect();
// Only a part of the media controls is used for overlap avoidance.
MediaControls* controls = toMediaControls(controlsContainer->node());
LayoutObject* controlsLayout = controls->layoutObjectForTextTrackLayout();
// The (second part of the) following is mostly defensive - in general
// there should be a LayoutBox representing the part of the controls that
// are relevant for overlap avoidance. (The controls pseudo elements are
// generally reachable from outside the shadow tree though, hence the
// "mostly".)
if (!controlsLayout || !controlsLayout->isBox())
return IntRect();
// Assume that the controls container are positioned in the same relative
// position as the text track container. (LayoutMedia::layout ensures this.)
return contentBoxRelativeToAncestor(toLayoutBox(*controlsLayout),
toLayoutBox(*controlsContainer));
}
MediaControls* MediaControls::create(HTMLMediaElement& mediaElement) {
MediaControls* controls = new MediaControls(mediaElement);
controls->setShadowPseudoId(AtomicString("-webkit-media-controls"));
controls->initializeControls();
return controls;
}
void MediaPlayerPrivateEA::paint(GraphicsContext* context, const IntRect& r)
{
if (!context)
return;
// Can get a NULL platform context so need to verify. Seems that UpdateControlTints does what is called a "fake" paint
// with a null platform context just to get an invalidate.
PlatformContextCairo* pPlatformContext = context->platformContext();
if (!pPlatformContext)
return;
cairo_t* cr = context->platformContext()->cr();
if (!cr)
return;
MediaUpdateInfo& info = GetMediaUpdateInfo();
const FrameView* pFV = mpWebCorePlayer->frameView();
if (!pFV)
return;
// Convert and store movie rect to device coords using the graphic context.
double x = (double) r.x();
double y = (double) r.y();
double w = (double) r.width();
double h = (double) r.height();
cairo_user_to_device (cr, &x, &y);
cairo_user_to_device_distance(cr, &w, &h);
const IntRect rect((int) x, (int) y, (int) w, (int) h);
// The intersection of frameView contents and the movie is used as clip rect for we just want to know what part of the movie is visible.
IntRect clip = pFV->windowClipRect(true);
clip.intersect(rect);
// Find controls intersection
HTMLMediaElement* element = static_cast<HTMLMediaElement*>(mpWebCorePlayer->mediaPlayerClient());
if(element && element->controls())
{
MediaControls* pControls = element->mediaControls();
bool hideControls = pControls->shouldHideControls();
if (!hideControls)
{
const int kControlHeight = 16; // EAWebKitTODO: Consider finding a way to extract this info directly from the controls or pass as a theme param.
IntRect boundingRect = pControls->getRect();
x = (double) boundingRect.x();
y = (double) boundingRect.y();
w = (double) boundingRect.width();
h = (double) (boundingRect.height() - kControlHeight);
cairo_user_to_device (cr, &x, &y);
cairo_user_to_device_distance(cr, &w, &h);
const IntRect ctrlRect((int) x, (int) y, (int) w, (int) h);
clip.intersect(ctrlRect);
}
}
if ((rect != mMovieRect) || (clip != mWindowRect))
{
mMovieRect = rect; // Store copy locally to detect changes.
mWindowRect = clip;
info.mMovieRect = rect;
info.mWindowRect = clip;
ClientUpdate(MediaUpdateInfo::kWindowSize);
}
ClientUpdate(MediaUpdateInfo::kPaint);
if (info.mReturnData)
{
// Draw surface to view
#ifndef NDEBUG
static bool sAssertChecked = false;
if(!sAssertChecked)
{
EAW_ASSERT(!info.mReturnData);
sAssertChecked = true;
}
#endif
context->save();
RefPtr<cairo_surface_t> cairoSurface = adoptRef(cairo_image_surface_create_for_data((unsigned char*) info.mReturnData, CAIRO_FORMAT_ARGB32, w, h, w * sizeof(uint32_t)));
EAW_ASSERT(cairo_surface_status(cairoSurface.get()) == CAIRO_STATUS_SUCCESS);
cairo_set_source_surface(cr, cairoSurface.get(), rect.x(), rect.y());
cairo_paint(cr);
context->restore();
}
else
{
// Draw a default black background.
context->save();
context->setStrokeStyle(NoStroke);
context->setFillColor(Color::black, ColorSpaceDeviceRGB);
context->drawRect(r);
context->restore();
}
}
MediaControlInputElement::MediaControlInputElement(
MediaControls& mediaControls,
MediaControlElementType displayType)
: HTMLInputElement(mediaControls.document(), false),
MediaControlElement(mediaControls, displayType, this) {}
MediaControlDivElement::MediaControlDivElement(
MediaControls& mediaControls,
MediaControlElementType displayType)
: HTMLDivElement(mediaControls.document()),
MediaControlElement(mediaControls, displayType, this) {}