The Tor Browser: content/canvas/src/DocumentRendererChild.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #include "mozilla/ipc/DocumentRendererChild.h"

     7 #include "base/basictypes.h"

     9 #include "gfx2DGlue.h"

    10 #include "gfxPattern.h"

    11 #include "mozilla/gfx/2D.h"

    12 #include "mozilla/RefPtr.h"

    13 #include "nsPIDOMWindow.h"

    14 #include "nsIDOMWindow.h"

    15 #include "nsIDocShell.h"

    16 #include "nsIInterfaceRequestorUtils.h"

    17 #include "nsComponentManagerUtils.h"

    18 #include "nsCSSParser.h"

    19 #include "nsPresContext.h"

    20 #include "nsCOMPtr.h"

    21 #include "nsColor.h"

    22 #include "gfxContext.h"

    23 #include "nsLayoutUtils.h"

    24 #include "nsContentUtils.h"

    25 #include "nsCSSValue.h"

    26 #include "nsRuleNode.h"

    27 #include "mozilla/gfx/Matrix.h"

    29 using namespace mozilla;

    30 using namespace mozilla::gfx;

    31 using namespace mozilla::ipc;

    33 DocumentRendererChild::DocumentRendererChild()

    34 {}

    36 DocumentRendererChild::~DocumentRendererChild()

    37 {}

    39 bool

    40 DocumentRendererChild::RenderDocument(nsIDOMWindow *window,

    41                                       const nsRect& documentRect,

    42                                       const mozilla::gfx::Matrix& transform,

    43                                       const nsString& aBGColor,

    44                                       uint32_t renderFlags,

    45                                       bool flushLayout,

    46                                       const nsIntSize& renderSize,

    47                                       nsCString& data)

    48 {

    49     if (flushLayout)

    50         nsContentUtils::FlushLayoutForTree(window);

    52     nsRefPtr<nsPresContext> presContext;

    53     nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(window);

    54     if (win) {

    55         nsIDocShell* docshell = win->GetDocShell();

    56         if (docshell) {

    57             docshell->GetPresContext(getter_AddRefs(presContext));

    58         }

    59     }

    60     if (!presContext)

    61         return false;

    63     nsCSSParser parser;

    64     nsCSSValue bgColorValue;

    65     if (!parser.ParseColorString(aBGColor, nullptr, 0, bgColorValue)) {

    66         return false;

    67     }

    69     nscolor bgColor;

    70     if (!nsRuleNode::ComputeColor(bgColorValue, presContext, nullptr, bgColor)) {

    71         return false;

    72     }

    74     // Draw directly into the output array.

    75     data.SetLength(renderSize.width * renderSize.height * 4);

    77     RefPtr<DrawTarget> dt =

    78         Factory::CreateDrawTargetForData(BackendType::CAIRO,

    79                                          reinterpret_cast<uint8_t*>(data.BeginWriting()),

    80                                          IntSize(renderSize.width, renderSize.height),

    81                                          4 * renderSize.width,

    82                                          SurfaceFormat::B8G8R8A8);

    83     nsRefPtr<gfxContext> ctx = new gfxContext(dt);

    84     ctx->SetMatrix(mozilla::gfx::ThebesMatrix(transform));

    86     nsCOMPtr<nsIPresShell> shell = presContext->PresShell();

    87     shell->RenderDocument(documentRect, renderFlags, bgColor, ctx);

    89     return true;

    90 }

The Tor Browser / file revision