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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/renderer/printing/print_web_view_helper.h" | |
| 6 | |
| 7 #import <AppKit/AppKit.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "base/mac/scoped_nsautorelease_pool.h" | |
| 11 #include "base/metrics/histogram.h" | |
| 12 #include "chrome/common/print_messages.h" | |
| 13 #include "printing/metafile_skia_wrapper.h" | |
| 14 #include "printing/page_size_margins.h" | |
| 15 #include "skia/ext/platform_device.h" | |
| 16 #include "skia/ext/vector_canvas.h" | |
| 17 #include "third_party/WebKit/public/platform/WebCanvas.h" | |
| 18 #include "third_party/WebKit/public/web/WebLocalFrame.h" | |
| 19 | |
| 20 namespace printing { | |
| 21 | |
| 22 using blink::WebFrame; | |
| 23 | |
| 24 void PrintWebViewHelper::PrintPageInternal( | |
| 25 const PrintMsg_PrintPage_Params& params, | |
| 26 WebFrame* frame) { | |
| 27 PdfMetafileSkia metafile; | |
| 28 if (!metafile.Init()) | |
| 29 return; | |
| 30 | |
| 31 int page_number = params.page_number; | |
| 32 gfx::Size page_size_in_dpi; | |
| 33 gfx::Rect content_area_in_dpi; | |
| 34 RenderPage(print_pages_params_->params, page_number, frame, false, &metafile, | |
| 35 &page_size_in_dpi, &content_area_in_dpi); | |
| 36 metafile.FinishDocument(); | |
| 37 | |
| 38 PrintHostMsg_DidPrintPage_Params page_params; | |
| 39 page_params.data_size = metafile.GetDataSize(); | |
| 40 page_params.page_number = page_number; | |
| 41 page_params.document_cookie = params.params.document_cookie; | |
| 42 page_params.page_size = page_size_in_dpi; | |
| 43 page_params.content_area = content_area_in_dpi; | |
| 44 | |
| 45 // Ask the browser to create the shared memory for us. | |
| 46 if (!CopyMetafileDataToSharedMem(&metafile, | |
| 47 &(page_params.metafile_data_handle))) { | |
| 48 page_params.data_size = 0; | |
| 49 } | |
| 50 | |
| 51 Send(new PrintHostMsg_DidPrintPage(routing_id(), page_params)); | |
| 52 } | |
| 53 | |
| 54 bool PrintWebViewHelper::RenderPreviewPage( | |
| 55 int page_number, | |
| 56 const PrintMsg_Print_Params& print_params) { | |
| 57 PrintMsg_Print_Params printParams = print_params; | |
| 58 scoped_ptr<PdfMetafileSkia> draft_metafile; | |
| 59 PdfMetafileSkia* initial_render_metafile = print_preview_context_.metafile(); | |
| 60 | |
| 61 bool render_to_draft = print_preview_context_.IsModifiable() && | |
| 62 is_print_ready_metafile_sent_; | |
| 63 | |
| 64 if (render_to_draft) { | |
| 65 draft_metafile.reset(new PdfMetafileSkia()); | |
| 66 if (!draft_metafile->Init()) { | |
| 67 print_preview_context_.set_error( | |
| 68 PREVIEW_ERROR_MAC_DRAFT_METAFILE_INIT_FAILED); | |
| 69 LOG(ERROR) << "Draft PdfMetafileSkia Init failed"; | |
| 70 return false; | |
| 71 } | |
| 72 initial_render_metafile = draft_metafile.get(); | |
| 73 } | |
| 74 | |
| 75 base::TimeTicks begin_time = base::TimeTicks::Now(); | |
| 76 gfx::Size page_size; | |
| 77 RenderPage(printParams, page_number, print_preview_context_.prepared_frame(), | |
| 78 true, initial_render_metafile, &page_size, NULL); | |
| 79 print_preview_context_.RenderedPreviewPage( | |
| 80 base::TimeTicks::Now() - begin_time); | |
| 81 | |
| 82 if (draft_metafile.get()) { | |
| 83 draft_metafile->FinishDocument(); | |
| 84 } else { | |
| 85 if (print_preview_context_.IsModifiable() && | |
| 86 print_preview_context_.generate_draft_pages()) { | |
| 87 DCHECK(!draft_metafile.get()); | |
| 88 draft_metafile = | |
| 89 print_preview_context_.metafile()->GetMetafileForCurrentPage(); | |
| 90 } | |
| 91 } | |
| 92 return PreviewPageRendered(page_number, draft_metafile.get()); | |
| 93 } | |
| 94 | |
| 95 void PrintWebViewHelper::RenderPage(const PrintMsg_Print_Params& params, | |
| 96 int page_number, | |
| 97 WebFrame* frame, | |
| 98 bool is_preview, | |
| 99 PdfMetafileSkia* metafile, | |
| 100 gfx::Size* page_size, | |
| 101 gfx::Rect* content_rect) { | |
| 102 double scale_factor = 1.0f; | |
| 103 double webkit_shrink_factor = frame->getPrintPageShrink(page_number); | |
| 104 PageSizeMargins page_layout_in_points; | |
| 105 gfx::Rect content_area; | |
| 106 | |
| 107 ComputePageLayoutInPointsForCss(frame, page_number, params, | |
| 108 ignore_css_margins_, &scale_factor, | |
| 109 &page_layout_in_points); | |
| 110 GetPageSizeAndContentAreaFromPageLayout(page_layout_in_points, page_size, | |
| 111 &content_area); | |
| 112 if (content_rect) | |
| 113 *content_rect = content_area; | |
| 114 | |
| 115 scale_factor *= webkit_shrink_factor; | |
| 116 | |
| 117 gfx::Rect canvas_area = | |
| 118 params.display_header_footer ? gfx::Rect(*page_size) : content_area; | |
| 119 | |
| 120 { | |
| 121 skia::VectorCanvas* canvas = metafile->GetVectorCanvasForNewPage( | |
| 122 *page_size, canvas_area, scale_factor); | |
| 123 if (!canvas) | |
| 124 return; | |
| 125 | |
| 126 MetafileSkiaWrapper::SetMetafileOnCanvas(*canvas, metafile); | |
| 127 skia::SetIsDraftMode(*canvas, is_print_ready_metafile_sent_); | |
| 128 skia::SetIsPreviewMetafile(*canvas, is_preview); | |
| 129 #if defined(ENABLE_PRINT_PREVIEW) | |
| 130 if (params.display_header_footer) { | |
| 131 PrintHeaderAndFooter(static_cast<blink::WebCanvas*>(canvas), | |
| 132 page_number + 1, | |
| 133 print_preview_context_.total_page_count(), *frame, | |
| 134 scale_factor, page_layout_in_points, params); | |
| 135 } | |
| 136 #endif // defined(ENABLE_PRINT_PREVIEW) | |
| 137 RenderPageContent(frame, page_number, canvas_area, content_area, | |
| 138 scale_factor, static_cast<blink::WebCanvas*>(canvas)); | |
| 139 } | |
| 140 | |
| 141 // Done printing. Close the device context to retrieve the compiled metafile. | |
| 142 metafile->FinishPage(); | |
| 143 } | |
| 144 | |
| 145 } // namespace printing | |
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Chromium Code Reviews
Issue 811563008:
Moving files from //chrome to //components/printing (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master