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1 /* This Source Code Form is subject to the terms of the Mozilla Public |
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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4 |
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5 #include "mozilla/ipc/DocumentRendererChild.h" |
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6 |
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7 #include "base/basictypes.h" |
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8 |
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9 #include "gfx2DGlue.h" |
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10 #include "gfxPattern.h" |
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11 #include "mozilla/gfx/2D.h" |
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12 #include "mozilla/RefPtr.h" |
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13 #include "nsPIDOMWindow.h" |
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14 #include "nsIDOMWindow.h" |
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15 #include "nsIDocShell.h" |
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16 #include "nsIInterfaceRequestorUtils.h" |
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17 #include "nsComponentManagerUtils.h" |
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18 #include "nsCSSParser.h" |
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19 #include "nsPresContext.h" |
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20 #include "nsCOMPtr.h" |
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21 #include "nsColor.h" |
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22 #include "gfxContext.h" |
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23 #include "nsLayoutUtils.h" |
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24 #include "nsContentUtils.h" |
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25 #include "nsCSSValue.h" |
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26 #include "nsRuleNode.h" |
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27 #include "mozilla/gfx/Matrix.h" |
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28 |
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29 using namespace mozilla; |
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30 using namespace mozilla::gfx; |
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31 using namespace mozilla::ipc; |
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32 |
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33 DocumentRendererChild::DocumentRendererChild() |
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34 {} |
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35 |
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36 DocumentRendererChild::~DocumentRendererChild() |
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37 {} |
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38 |
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39 bool |
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40 DocumentRendererChild::RenderDocument(nsIDOMWindow *window, |
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41 const nsRect& documentRect, |
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42 const mozilla::gfx::Matrix& transform, |
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43 const nsString& aBGColor, |
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44 uint32_t renderFlags, |
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45 bool flushLayout, |
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46 const nsIntSize& renderSize, |
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47 nsCString& data) |
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48 { |
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49 if (flushLayout) |
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50 nsContentUtils::FlushLayoutForTree(window); |
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51 |
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52 nsRefPtr<nsPresContext> presContext; |
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53 nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(window); |
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54 if (win) { |
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55 nsIDocShell* docshell = win->GetDocShell(); |
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56 if (docshell) { |
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57 docshell->GetPresContext(getter_AddRefs(presContext)); |
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58 } |
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59 } |
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60 if (!presContext) |
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61 return false; |
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62 |
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63 nsCSSParser parser; |
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64 nsCSSValue bgColorValue; |
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65 if (!parser.ParseColorString(aBGColor, nullptr, 0, bgColorValue)) { |
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66 return false; |
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67 } |
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68 |
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69 nscolor bgColor; |
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70 if (!nsRuleNode::ComputeColor(bgColorValue, presContext, nullptr, bgColor)) { |
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71 return false; |
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72 } |
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73 |
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74 // Draw directly into the output array. |
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75 data.SetLength(renderSize.width * renderSize.height * 4); |
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76 |
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77 RefPtr<DrawTarget> dt = |
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78 Factory::CreateDrawTargetForData(BackendType::CAIRO, |
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79 reinterpret_cast<uint8_t*>(data.BeginWriting()), |
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80 IntSize(renderSize.width, renderSize.height), |
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81 4 * renderSize.width, |
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82 SurfaceFormat::B8G8R8A8); |
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83 nsRefPtr<gfxContext> ctx = new gfxContext(dt); |
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84 ctx->SetMatrix(mozilla::gfx::ThebesMatrix(transform)); |
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85 |
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86 nsCOMPtr<nsIPresShell> shell = presContext->PresShell(); |
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87 shell->RenderDocument(documentRect, renderFlags, bgColor, ctx); |
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88 |
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89 return true; |
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90 } |