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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/renderer/print_web_view_helper.h" | 5 #include "chrome/renderer/print_web_view_helper.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
9 #include "base/metrics/histogram.h" | 9 #include "base/metrics/histogram.h" |
10 #include "base/process_util.h" | 10 #include "base/process_util.h" |
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120 } | 120 } |
121 | 121 |
122 Send(new PrintHostMsg_DidPrintPage(routing_id(), page_params)); | 122 Send(new PrintHostMsg_DidPrintPage(routing_id(), page_params)); |
123 } | 123 } |
124 | 124 |
125 bool PrintWebViewHelper::RenderPreviewPage(int page_number) { | 125 bool PrintWebViewHelper::RenderPreviewPage(int page_number) { |
126 PrintMsg_Print_Params print_params = print_preview_context_.print_params(); | 126 PrintMsg_Print_Params print_params = print_preview_context_.print_params(); |
127 // Calculate the dpi adjustment. | 127 // Calculate the dpi adjustment. |
128 float scale_factor = static_cast<float>(print_params.desired_dpi / | 128 float scale_factor = static_cast<float>(print_params.desired_dpi / |
129 print_params.dpi); | 129 print_params.dpi); |
| 130 scoped_ptr<Metafile> draft_metafile; |
| 131 printing::Metafile* initial_render_metafile = |
| 132 print_preview_context_.metafile(); |
| 133 |
| 134 if (print_preview_context_.IsModifiable() && is_print_ready_metafile_sent_) { |
| 135 draft_metafile.reset(new printing::PreviewMetafile); |
| 136 initial_render_metafile = draft_metafile.get(); |
| 137 } |
130 | 138 |
131 base::TimeTicks begin_time = base::TimeTicks::Now(); | 139 base::TimeTicks begin_time = base::TimeTicks::Now(); |
132 printing::Metafile* render_page_result = | 140 printing::Metafile* render_page_result = |
133 RenderPage(print_params, &scale_factor, page_number, true, | 141 RenderPage(print_params, &scale_factor, page_number, true, |
134 print_preview_context_.frame(), | 142 print_preview_context_.frame(), initial_render_metafile); |
135 print_preview_context_.metafile()); | |
136 // In the preview flow, RenderPage will never return a new metafile. | 143 // In the preview flow, RenderPage will never return a new metafile. |
137 DCHECK_EQ(render_page_result, print_preview_context_.metafile()); | 144 DCHECK_EQ(render_page_result, initial_render_metafile); |
138 | |
139 print_preview_context_.RenderedPreviewPage( | 145 print_preview_context_.RenderedPreviewPage( |
140 base::TimeTicks::Now() - begin_time); | 146 base::TimeTicks::Now() - begin_time); |
141 | 147 |
142 scoped_ptr<printing::Metafile> page_metafile; | 148 if (draft_metafile.get()) { |
143 if (print_preview_context_.IsModifiable()) { | 149 draft_metafile->FinishDocument(); |
144 page_metafile.reset( | 150 } else if (print_preview_context_.IsModifiable() && |
| 151 print_preview_context_.generate_draft_pages()){ |
| 152 DCHECK(!draft_metafile.get()); |
| 153 draft_metafile.reset( |
145 print_preview_context_.metafile()->GetMetafileForCurrentPage()); | 154 print_preview_context_.metafile()->GetMetafileForCurrentPage()); |
146 } | 155 } |
147 return PreviewPageRendered(page_number, page_metafile.get()); | 156 return PreviewPageRendered(page_number, draft_metafile.get()); |
148 } | 157 } |
149 | 158 |
150 Metafile* PrintWebViewHelper::RenderPage( | 159 Metafile* PrintWebViewHelper::RenderPage( |
151 const PrintMsg_Print_Params& params, float* scale_factor, int page_number, | 160 const PrintMsg_Print_Params& params, float* scale_factor, int page_number, |
152 bool is_preview, WebFrame* frame, Metafile* metafile) { | 161 bool is_preview, WebFrame* frame, Metafile* metafile) { |
153 printing::PageSizeMargins page_layout_in_points; | 162 printing::PageSizeMargins page_layout_in_points; |
154 GetPageSizeAndMarginsInPoints(frame, page_number, params, | 163 GetPageSizeAndMarginsInPoints(frame, page_number, params, |
155 &page_layout_in_points); | 164 &page_layout_in_points); |
156 | 165 |
157 int width; | 166 int width; |
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177 static_cast<int>(page_layout_in_points.margin_top), | 186 static_cast<int>(page_layout_in_points.margin_top), |
178 static_cast<int>(page_layout_in_points.content_width), | 187 static_cast<int>(page_layout_in_points.content_width), |
179 static_cast<int>(page_layout_in_points.content_height)); | 188 static_cast<int>(page_layout_in_points.content_height)); |
180 SkDevice* device = metafile->StartPageForVectorCanvas( | 189 SkDevice* device = metafile->StartPageForVectorCanvas( |
181 page_size, content_area, frame->getPrintPageShrink(page_number)); | 190 page_size, content_area, frame->getPrintPageShrink(page_number)); |
182 DCHECK(device); | 191 DCHECK(device); |
183 // The printPage method may take a reference to the canvas we pass down, so it | 192 // The printPage method may take a reference to the canvas we pass down, so it |
184 // can't be a stack object. | 193 // can't be a stack object. |
185 SkRefPtr<skia::VectorCanvas> canvas = new skia::VectorCanvas(device); | 194 SkRefPtr<skia::VectorCanvas> canvas = new skia::VectorCanvas(device); |
186 canvas->unref(); // SkRefPtr and new both took a reference. | 195 canvas->unref(); // SkRefPtr and new both took a reference. |
187 if (is_preview) | 196 if (is_preview) { |
188 printing::MetafileSkiaWrapper::SetMetafileOnCanvas(canvas.get(), metafile); | 197 printing::MetafileSkiaWrapper::SetMetafileOnCanvas(canvas.get(), metafile); |
| 198 printing::MetafileSkiaWrapper::SetDraftMode(canvas.get(), |
| 199 is_print_ready_metafile_sent_); |
| 200 } |
189 | 201 |
190 float webkit_scale_factor = frame->printPage(page_number, canvas.get()); | 202 float webkit_scale_factor = frame->printPage(page_number, canvas.get()); |
191 | 203 |
192 if (params.display_header_footer) { | 204 if (params.display_header_footer) { |
193 // |page_number| is 0-based, so 1 is added. | 205 // |page_number| is 0-based, so 1 is added. |
194 PrintHeaderAndFooter(canvas.get(), page_number + 1, | 206 PrintHeaderAndFooter(canvas.get(), page_number + 1, |
195 print_preview_context_.total_page_count(), | 207 print_preview_context_.total_page_count(), |
196 webkit_scale_factor, page_layout_in_points, | 208 webkit_scale_factor, page_layout_in_points, |
197 *header_footer_info_); | 209 *header_footer_info_); |
198 } | 210 } |
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288 shared_buf.Unmap(); | 300 shared_buf.Unmap(); |
289 return false; | 301 return false; |
290 } | 302 } |
291 shared_buf.GiveToProcess(base::GetCurrentProcessHandle(), shared_mem_handle); | 303 shared_buf.GiveToProcess(base::GetCurrentProcessHandle(), shared_mem_handle); |
292 shared_buf.Unmap(); | 304 shared_buf.Unmap(); |
293 | 305 |
294 Send(new PrintHostMsg_DuplicateSection(routing_id(), *shared_mem_handle, | 306 Send(new PrintHostMsg_DuplicateSection(routing_id(), *shared_mem_handle, |
295 shared_mem_handle)); | 307 shared_mem_handle)); |
296 return true; | 308 return true; |
297 } | 309 } |
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