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348 lines
11 KiB
C++
348 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla code.
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*
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* The Initial Developer of the Original Code is the Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2007
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Chris Double <chris.double@double.co.nz>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* rendering object for the HTML <video> element */
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#include "nsHTMLParts.h"
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#include "nsCOMPtr.h"
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#include "nsIServiceManager.h"
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#include "nsGkAtoms.h"
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#include "nsVideoFrame.h"
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#include "nsHTMLVideoElement.h"
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#include "nsIDOMHTMLVideoElement.h"
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#include "nsDisplayList.h"
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#include "nsIRenderingContext.h"
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#include "gfxContext.h"
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#include "gfxImageSurface.h"
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#include "nsPresContext.h"
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#include "nsTransform2D.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsBoxLayoutState.h"
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#include "nsBoxFrame.h"
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nsIFrame*
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NS_NewHTMLVideoFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsVideoFrame(aContext);
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}
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nsVideoFrame::nsVideoFrame(nsStyleContext* aContext) :
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nsContainerFrame(aContext)
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{
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}
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nsVideoFrame::~nsVideoFrame()
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{
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}
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NS_INTERFACE_MAP_BEGIN(nsVideoFrame)
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NS_INTERFACE_MAP_ENTRY(nsIAnonymousContentCreator)
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#ifdef NS_DEBUG
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NS_INTERFACE_MAP_ENTRY(nsIFrameDebug)
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#endif
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NS_INTERFACE_MAP_END_INHERITING(nsContainerFrame)
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NS_IMETHODIMP_(nsrefcnt)
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nsVideoFrame::AddRef(void)
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{
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return NS_OK;
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}
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NS_IMETHODIMP_(nsrefcnt)
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nsVideoFrame::Release(void)
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{
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return NS_OK;
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}
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nsresult
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nsVideoFrame::CreateAnonymousContent(nsTArray<nsIContent*>& aElements)
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{
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// Set up "videocontrols" XUL element which will be XBL-bound to the
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// actual controls.
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nsPresContext* presContext = PresContext();
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nsNodeInfoManager *nodeInfoManager =
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presContext->Document()->NodeInfoManager();
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nsCOMPtr<nsINodeInfo> nodeInfo;
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nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::videocontrols, nsnull,
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kNameSpaceID_XUL);
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NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
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nsresult rv = NS_NewElement(getter_AddRefs(mVideoControls), kNameSpaceID_XUL, nodeInfo, PR_FALSE);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!aElements.AppendElement(mVideoControls))
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return NS_ERROR_OUT_OF_MEMORY;
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return NS_OK;
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}
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void
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nsVideoFrame::Destroy()
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{
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nsContentUtils::DestroyAnonymousContent(&mVideoControls);
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nsContainerFrame::Destroy();
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}
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PRBool
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nsVideoFrame::IsLeaf() const
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{
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return PR_TRUE;
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}
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void
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nsVideoFrame::PaintVideo(nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect, nsPoint aPt)
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{
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gfxContext* ctx = static_cast<gfxContext*>(aRenderingContext.GetNativeGraphicData(nsIRenderingContext::NATIVE_THEBES_CONTEXT));
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// TODO: handle the situation where the frame size is not the same as the
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// video size, by drawing to the largest rectangle that fits in the frame
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// whose aspect ratio equals the video's aspect ratio
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nsRect area = GetContentRect() - GetPosition() + aPt;
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nsPresContext* presContext = PresContext();
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gfxRect r = gfxRect(presContext->AppUnitsToGfxUnits(area.x),
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presContext->AppUnitsToGfxUnits(area.y),
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presContext->AppUnitsToGfxUnits(area.width),
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presContext->AppUnitsToGfxUnits(area.height));
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nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
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element->Paint(ctx, r);
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}
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NS_IMETHODIMP
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nsVideoFrame::Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aMetrics,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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DO_GLOBAL_REFLOW_COUNT("nsVideoFrame");
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DISPLAY_REFLOW(aPresContext, this, aReflowState, aMetrics, aStatus);
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NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
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("enter nsVideoFrame::Reflow: availSize=%d,%d",
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aReflowState.availableWidth, aReflowState.availableHeight));
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NS_PRECONDITION(mState & NS_FRAME_IN_REFLOW, "frame is not in reflow");
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aStatus = NS_FRAME_COMPLETE;
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aMetrics.width = aReflowState.ComputedWidth();
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aMetrics.height = aReflowState.ComputedHeight();
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// stash this away so we can compute our inner area later
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mBorderPadding = aReflowState.mComputedBorderPadding;
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aMetrics.width += mBorderPadding.left + mBorderPadding.right;
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aMetrics.height += mBorderPadding.top + mBorderPadding.bottom;
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nsIFrame* child = mFrames.FirstChild();
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if (child) {
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NS_ASSERTION(child->GetContent() == mVideoControls,
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"What is this child doing here?");
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nsBoxLayoutState boxState(PresContext(), aReflowState.rendContext);
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nsBoxFrame::LayoutChildAt(boxState, child,
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nsRect(mBorderPadding.left, mBorderPadding.right,
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aReflowState.ComputedWidth(), aReflowState.ComputedHeight()));
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}
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aMetrics.mOverflowArea.SetRect(0, 0, aMetrics.width, aMetrics.height);
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FinishAndStoreOverflow(&aMetrics);
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if (mRect.width != aMetrics.width || mRect.height != aMetrics.height) {
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Invalidate(nsRect(0, 0, mRect.width, mRect.height));
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}
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NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
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("exit nsVideoFrame::Reflow: size=%d,%d",
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aMetrics.width, aMetrics.height));
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NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aMetrics);
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return NS_OK;
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}
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static void PaintVideo(nsIFrame* aFrame, nsIRenderingContext* aCtx,
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const nsRect& aDirtyRect, nsPoint aPt)
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{
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#if 0
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double start = double(PR_IntervalToMilliseconds(PR_IntervalNow()))/1000.0;
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#endif
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static_cast<nsVideoFrame*>(aFrame)->PaintVideo(*aCtx, aDirtyRect, aPt);
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#if 0
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double end = double(PR_IntervalToMilliseconds(PR_IntervalNow()))/1000.0;
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printf("PaintVideo: %f\n", (float)end - (float)start);
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#endif
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}
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NS_IMETHODIMP
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nsVideoFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists)
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{
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if (!IsVisibleForPainting(aBuilder))
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return NS_OK;
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DO_GLOBAL_REFLOW_COUNT_DSP("nsVideoFrame");
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nsresult rv = DisplayBorderBackgroundOutline(aBuilder, aLists);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = aLists.Content()->AppendNewToTop(new (aBuilder) nsDisplayGeneric(this, ::PaintVideo, "Video"));
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NS_ENSURE_SUCCESS(rv, rv);
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if (mFrames.FirstChild()) {
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rv = mFrames.FirstChild()->BuildDisplayListForStackingContext(aBuilder, aDirtyRect, aLists.Content());
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}
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return rv;
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}
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nsIAtom*
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nsVideoFrame::GetType() const
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{
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return nsGkAtoms::HTMLVideoFrame;
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}
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#ifdef ACCESSIBILITY
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NS_IMETHODIMP
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nsVideoFrame::GetAccessible(nsIAccessible** aAccessible)
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{
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return NS_ERROR_FAILURE;
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}
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#endif
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#ifdef DEBUG
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NS_IMETHODIMP
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nsVideoFrame::GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("HTMLVideo"), aResult);
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}
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#endif
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nsSize nsVideoFrame::ComputeSize(nsIRenderingContext *aRenderingContext,
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nsSize aCBSize,
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nscoord aAvailableWidth,
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nsSize aMargin,
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nsSize aBorder,
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nsSize aPadding,
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PRBool aShrinkWrap)
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{
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nsSize size = GetVideoSize();
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IntrinsicSize intrinsicSize;
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intrinsicSize.width.SetCoordValue(size.width);
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intrinsicSize.height.SetCoordValue(size.height);
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nsSize& intrinsicRatio = size; // won't actually be used
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return nsLayoutUtils::ComputeSizeWithIntrinsicDimensions(aRenderingContext,
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this,
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intrinsicSize,
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intrinsicRatio,
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aCBSize,
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aMargin,
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aBorder,
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aPadding);
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}
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nscoord nsVideoFrame::GetMinWidth(nsIRenderingContext *aRenderingContext)
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{
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// XXX The caller doesn't account for constraints of the height,
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// min-height, and max-height properties.
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nscoord result = GetVideoSize().width;
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DISPLAY_MIN_WIDTH(this, result);
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return result;
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}
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nscoord nsVideoFrame::GetPrefWidth(nsIRenderingContext *aRenderingContext)
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{
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// XXX The caller doesn't account for constraints of the height,
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// min-height, and max-height properties.
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nscoord result = GetVideoSize().width;
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DISPLAY_PREF_WIDTH(this, result);
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return result;
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}
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nsSize nsVideoFrame::GetIntrinsicRatio()
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{
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return GetVideoSize();
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}
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nsSize nsVideoFrame::GetVideoSize()
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{
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// Defaulting size to 300x150 if no size given.
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nsIntSize size(300,150);
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nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
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if (element) {
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nsresult rv;
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size = element->GetVideoSize(size);
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if (element->HasAttr(kNameSpaceID_None, nsGkAtoms::width)) {
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PRInt32 width = -1;
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rv = element->GetWidth(&width);
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if (NS_SUCCEEDED(rv)) {
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size.width = width;
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}
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}
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if (element->HasAttr(kNameSpaceID_None, nsGkAtoms::height)) {
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PRInt32 height = -1;
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rv = element->GetHeight(&height);
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if (NS_SUCCEEDED(rv)) {
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size.height = height;
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}
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}
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}
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return nsSize(nsPresContext::CSSPixelsToAppUnits(size.width),
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nsPresContext::CSSPixelsToAppUnits(size.height));
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}
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NS_IMETHODIMP nsVideoFrame::Freeze()
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{
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nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
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element->Pause();
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return NS_OK;
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}
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NS_IMETHODIMP nsVideoFrame::Thaw()
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{
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nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
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element->Play();
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return NS_OK;
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}
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