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Side by Side Diff: chrome/renderer/print_web_view_helper_mac.mm

Issue 6544028: Create a Factory for NativeMetafile. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fixed NativeMetafileFactory class comments Created 9 years, 10 months ago
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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 #import <AppKit/AppKit.h> 7 #import <AppKit/AppKit.h>
8 8
9 #include "base/logging.h" 9 #include "base/logging.h"
10 #include "base/scoped_ptr.h"
10 #include "chrome/common/render_messages.h" 11 #include "chrome/common/render_messages.h"
11 #include "chrome/common/render_messages_params.h" 12 #include "chrome/common/render_messages_params.h"
12 #include "chrome/renderer/render_view.h" 13 #include "chrome/renderer/render_view.h"
13 #include "grit/generated_resources.h" 14 #include "grit/generated_resources.h"
14 #include "printing/native_metafile.h" 15 #include "printing/native_metafile.h"
16 #include "printing/native_metafile_factory.h"
15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h" 17 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
16 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCanvas.h" 18 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCanvas.h"
17 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRect.h" 19 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRect.h"
18 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSize.h" 20 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSize.h"
19 #include "ui/base/l10n/l10n_util.h" 21 #include "ui/base/l10n/l10n_util.h"
20 22
21 using WebKit::WebFrame; 23 using WebKit::WebFrame;
22 using WebKit::WebCanvas; 24 using WebKit::WebCanvas;
23 using WebKit::WebRect; 25 using WebKit::WebRect;
24 using WebKit::WebSize; 26 using WebKit::WebSize;
25 27
26 void PrintWebViewHelper::PrintPage(const ViewMsg_PrintPage_Params& params, 28 void PrintWebViewHelper::PrintPage(const ViewMsg_PrintPage_Params& params,
27 const gfx::Size& canvas_size, 29 const gfx::Size& canvas_size,
28 WebFrame* frame) { 30 WebFrame* frame) {
29 printing::NativeMetafile metafile; 31 scoped_ptr<printing::NativeMetafile> metafile(
30 if (!metafile.Init()) 32 printing::MetafileFactory::GetMetafile());
33 if (!metafile->Init())
31 return; 34 return;
32 35
33 float scale_factor = frame->getPrintPageShrink(params.page_number); 36 float scale_factor = frame->getPrintPageShrink(params.page_number);
34 double width = params.params.printable_size.width(); 37 double width = params.params.printable_size.width();
35 double height = params.params.printable_size.height(); 38 double height = params.params.printable_size.height();
36 int page_number = params.page_number; 39 int page_number = params.page_number;
37 40
38 // Render page for printing. 41 // Render page for printing.
39 gfx::Point origin(0.0f, 0.0f); 42 gfx::Point origin(0.0f, 0.0f);
40 RenderPage(params.params.printable_size, origin, scale_factor, page_number, 43 RenderPage(params.params.printable_size, origin, scale_factor, page_number,
41 frame, &metafile); 44 frame, metafile);
42 45
43 metafile.Close(); 46 metafile->Close();
44 47
45 double margin_left = params.params.margin_left; 48 double margin_left = params.params.margin_left;
46 double margin_top = params.params.margin_top; 49 double margin_top = params.params.margin_top;
47 50
48 // Get the size of the compiled metafile. 51 // Get the size of the compiled metafile.
49 ViewHostMsg_DidPrintPage_Params page_params; 52 ViewHostMsg_DidPrintPage_Params page_params;
50 page_params.data_size = metafile.GetDataSize(); 53 page_params.data_size = metafile->GetDataSize();
51 page_params.page_number = page_number; 54 page_params.page_number = page_number;
52 page_params.document_cookie = params.params.document_cookie; 55 page_params.document_cookie = params.params.document_cookie;
53 page_params.actual_shrink = scale_factor; 56 page_params.actual_shrink = scale_factor;
54 57
55 page_params.page_size = params.params.page_size; 58 page_params.page_size = params.params.page_size;
56 page_params.content_area = gfx::Rect(margin_left, margin_top, width, height); 59 page_params.content_area = gfx::Rect(margin_left, margin_top, width, height);
57 60
58 // Ask the browser to create the shared memory for us. 61 // Ask the browser to create the shared memory for us.
59 if (!CopyMetafileDataToSharedMem(&metafile, 62 if (!CopyMetafileDataToSharedMem(metafile,
60 &(page_params.metafile_data_handle))) { 63 &(page_params.metafile_data_handle))) {
61 page_params.data_size = 0; 64 page_params.data_size = 0;
62 } 65 }
63 66
64 Send(new ViewHostMsg_DidPrintPage(routing_id(), page_params)); 67 Send(new ViewHostMsg_DidPrintPage(routing_id(), page_params));
65 } 68 }
66 69
67 void PrintWebViewHelper::CreatePreviewDocument( 70 void PrintWebViewHelper::CreatePreviewDocument(
68 const ViewMsg_PrintPages_Params& params, WebFrame* frame) { 71 const ViewMsg_PrintPages_Params& params, WebFrame* frame) {
69 ViewMsg_Print_Params printParams = params.params; 72 ViewMsg_Print_Params printParams = params.params;
70 UpdatePrintableSizeInPrintParameters(frame, NULL, &printParams); 73 UpdatePrintableSizeInPrintParameters(frame, NULL, &printParams);
71 74
72 PrepareFrameAndViewForPrint prep_frame_view(printParams, 75 PrepareFrameAndViewForPrint prep_frame_view(printParams,
73 frame, NULL, frame->view()); 76 frame, NULL, frame->view());
74 int page_count = prep_frame_view.GetExpectedPageCount(); 77 int page_count = prep_frame_view.GetExpectedPageCount();
75 78
76 if (!page_count) 79 if (!page_count)
77 return; 80 return;
78 81
79 float scale_factor = frame->getPrintPageShrink(0); 82 float scale_factor = frame->getPrintPageShrink(0);
80 double originX = printParams.margin_left; 83 double originX = printParams.margin_left;
81 double originY = printParams.margin_top; 84 double originY = printParams.margin_top;
82 85
83 printing::NativeMetafile metafile; 86 scoped_ptr<printing::NativeMetafile> metafile(
84 if (!metafile.Init()) 87 printing::MetafileFactory::GetMetafile());
88 if (!metafile->Init())
85 return; 89 return;
86 90
87 gfx::Point origin(originX, originY); 91 gfx::Point origin(originX, originY);
88 92
89 if (params.pages.empty()) { 93 if (params.pages.empty()) {
90 for (int i = 0; i < page_count; ++i) { 94 for (int i = 0; i < page_count; ++i) {
91 RenderPage(printParams.page_size, origin, scale_factor, i, frame, 95 RenderPage(printParams.page_size, origin, scale_factor, i, frame,
92 &metafile); 96 metafile);
93 } 97 }
94 } else { 98 } else {
95 for (size_t i = 0; i < params.pages.size(); ++i) { 99 for (size_t i = 0; i < params.pages.size(); ++i) {
96 if (params.pages[i] >= page_count) 100 if (params.pages[i] >= page_count)
97 break; 101 break;
98 RenderPage(printParams.page_size, origin, scale_factor, 102 RenderPage(printParams.page_size, origin, scale_factor,
99 static_cast<int>(params.pages[i]), frame, &metafile); 103 static_cast<int>(params.pages[i]), frame, metafile);
100 } 104 }
101 } 105 }
102 metafile.Close(); 106 metafile->Close();
103 107
104 ViewHostMsg_DidPreviewDocument_Params preview_params; 108 ViewHostMsg_DidPreviewDocument_Params preview_params;
105 preview_params.data_size = metafile.GetDataSize(); 109 preview_params.data_size = metafile->GetDataSize();
106 preview_params.document_cookie = params.params.document_cookie; 110 preview_params.document_cookie = params.params.document_cookie;
107 111
108 // Ask the browser to create the shared memory for us. 112 // Ask the browser to create the shared memory for us.
109 if (!CopyMetafileDataToSharedMem(&metafile, 113 if (!CopyMetafileDataToSharedMem(metafile,
110 &(preview_params.metafile_data_handle))) { 114 &(preview_params.metafile_data_handle))) {
111 preview_params.data_size = 0; 115 preview_params.data_size = 0;
112 } 116 }
113 Send(new ViewHostMsg_PagesReadyForPreview(routing_id(), preview_params)); 117 Send(new ViewHostMsg_PagesReadyForPreview(routing_id(), preview_params));
114 } 118 }
115 119
116 void PrintWebViewHelper::RenderPage( 120 void PrintWebViewHelper::RenderPage(
117 const gfx::Size& page_size, const gfx::Point& content_origin, 121 const gfx::Size& page_size, const gfx::Point& content_origin,
118 const float& scale_factor, int page_number, WebFrame* frame, 122 const float& scale_factor, int page_number, WebFrame* frame,
119 printing::NativeMetafile* metafile) { 123 printing::NativeMetafile* metafile) {
120 CGContextRef context = metafile->StartPage(page_size, content_origin, 124 CGContextRef context = metafile->StartPage(page_size, content_origin,
121 scale_factor); 125 scale_factor);
122 DCHECK(context); 126 DCHECK(context);
123 127
124 // printPage can create autoreleased references to |context|. PDF contexts 128 // printPage can create autoreleased references to |context|. PDF contexts
125 // don't write all their data until they are destroyed, so we need to make 129 // don't write all their data until they are destroyed, so we need to make
126 // certain that there are no lingering references. 130 // certain that there are no lingering references.
127 NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; 131 NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
128 frame->printPage(page_number, context); 132 frame->printPage(page_number, context);
129 [pool release]; 133 [pool release];
130 134
131 // Done printing. Close the device context to retrieve the compiled metafile. 135 // Done printing. Close the device context to retrieve the compiled metafile.
132 metafile->FinishPage(); 136 metafile->FinishPage();
133 } 137 }
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