michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/ipc/DocumentRendererChild.h"
michael@0: 
michael@0: #include "base/basictypes.h"
michael@0: 
michael@0: #include "gfx2DGlue.h"
michael@0: #include "gfxPattern.h"
michael@0: #include "mozilla/gfx/2D.h"
michael@0: #include "mozilla/RefPtr.h"
michael@0: #include "nsPIDOMWindow.h"
michael@0: #include "nsIDOMWindow.h"
michael@0: #include "nsIDocShell.h"
michael@0: #include "nsIInterfaceRequestorUtils.h"
michael@0: #include "nsComponentManagerUtils.h"
michael@0: #include "nsCSSParser.h"
michael@0: #include "nsPresContext.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsColor.h"
michael@0: #include "gfxContext.h"
michael@0: #include "nsLayoutUtils.h"
michael@0: #include "nsContentUtils.h"
michael@0: #include "nsCSSValue.h"
michael@0: #include "nsRuleNode.h"
michael@0: #include "mozilla/gfx/Matrix.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::gfx;
michael@0: using namespace mozilla::ipc;
michael@0: 
michael@0: DocumentRendererChild::DocumentRendererChild()
michael@0: {}
michael@0: 
michael@0: DocumentRendererChild::~DocumentRendererChild()
michael@0: {}
michael@0: 
michael@0: bool
michael@0: DocumentRendererChild::RenderDocument(nsIDOMWindow *window,
michael@0:                                       const nsRect& documentRect,
michael@0:                                       const mozilla::gfx::Matrix& transform,
michael@0:                                       const nsString& aBGColor,
michael@0:                                       uint32_t renderFlags,
michael@0:                                       bool flushLayout,
michael@0:                                       const nsIntSize& renderSize,
michael@0:                                       nsCString& data)
michael@0: {
michael@0:     if (flushLayout)
michael@0:         nsContentUtils::FlushLayoutForTree(window);
michael@0: 
michael@0:     nsRefPtr<nsPresContext> presContext;
michael@0:     nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(window);
michael@0:     if (win) {
michael@0:         nsIDocShell* docshell = win->GetDocShell();
michael@0:         if (docshell) {
michael@0:             docshell->GetPresContext(getter_AddRefs(presContext));
michael@0:         }
michael@0:     }
michael@0:     if (!presContext)
michael@0:         return false;
michael@0: 
michael@0:     nsCSSParser parser;
michael@0:     nsCSSValue bgColorValue;
michael@0:     if (!parser.ParseColorString(aBGColor, nullptr, 0, bgColorValue)) {
michael@0:         return false;
michael@0:     }
michael@0: 
michael@0:     nscolor bgColor;
michael@0:     if (!nsRuleNode::ComputeColor(bgColorValue, presContext, nullptr, bgColor)) {
michael@0:         return false;
michael@0:     }
michael@0: 
michael@0:     // Draw directly into the output array.
michael@0:     data.SetLength(renderSize.width * renderSize.height * 4);
michael@0: 
michael@0:     RefPtr<DrawTarget> dt =
michael@0:         Factory::CreateDrawTargetForData(BackendType::CAIRO,
michael@0:                                          reinterpret_cast<uint8_t*>(data.BeginWriting()),
michael@0:                                          IntSize(renderSize.width, renderSize.height),
michael@0:                                          4 * renderSize.width,
michael@0:                                          SurfaceFormat::B8G8R8A8);
michael@0:     nsRefPtr<gfxContext> ctx = new gfxContext(dt);
michael@0:     ctx->SetMatrix(mozilla::gfx::ThebesMatrix(transform));
michael@0: 
michael@0:     nsCOMPtr<nsIPresShell> shell = presContext->PresShell();
michael@0:     shell->RenderDocument(documentRect, renderFlags, bgColor, ctx);
michael@0: 
michael@0:     return true;
michael@0: }