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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 #ifndef CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_ | 5 #ifndef CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_ |
6 #define CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_ | 6 #define CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
12 #include "base/shared_memory.h" | 12 #include "base/shared_memory.h" |
13 #include "base/time.h" | 13 #include "base/time.h" |
| 14 #include "base/values.h" |
14 #include "content/renderer/render_view_observer.h" | 15 #include "content/renderer/render_view_observer.h" |
15 #include "content/renderer/render_view_observer_tracker.h" | 16 #include "content/renderer/render_view_observer_tracker.h" |
16 #include "printing/metafile.h" | 17 #include "printing/metafile.h" |
| 18 #include "skia/ext/vector_canvas.h" |
| 19 #include "skia/ext/vector_platform_device_skia.h" |
| 20 #include "third_party/skia/include/core/SkRefCnt.h" |
17 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrameClient.h" | 21 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrameClient.h" |
18 #include "third_party/WebKit/Source/WebKit/chromium/public/WebViewClient.h" | 22 #include "third_party/WebKit/Source/WebKit/chromium/public/WebViewClient.h" |
19 #include "ui/gfx/size.h" | 23 #include "ui/gfx/size.h" |
20 | 24 |
21 struct PrintMsg_Print_Params; | 25 struct PrintMsg_Print_Params; |
22 struct PrintMsg_PrintPage_Params; | 26 struct PrintMsg_PrintPage_Params; |
23 struct PrintMsg_PrintPages_Params; | 27 struct PrintMsg_PrintPages_Params; |
24 | 28 |
25 namespace base { | 29 namespace base { |
26 class DictionaryValue; | 30 class DictionaryValue; |
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59 gfx::Size print_canvas_size_; | 63 gfx::Size print_canvas_size_; |
60 gfx::Size prev_view_size_; | 64 gfx::Size prev_view_size_; |
61 gfx::Size prev_scroll_offset_; | 65 gfx::Size prev_scroll_offset_; |
62 int expected_pages_count_; | 66 int expected_pages_count_; |
63 bool use_browser_overlays_; | 67 bool use_browser_overlays_; |
64 bool finished_; | 68 bool finished_; |
65 | 69 |
66 DISALLOW_COPY_AND_ASSIGN(PrepareFrameAndViewForPrint); | 70 DISALLOW_COPY_AND_ASSIGN(PrepareFrameAndViewForPrint); |
67 }; | 71 }; |
68 | 72 |
| 73 // Struct that holds margin and content area information of a page. |
| 74 typedef struct PageSizeMargins { |
| 75 double content_width; |
| 76 double content_height; |
| 77 double margin_top; |
| 78 double margin_right; |
| 79 double margin_bottom; |
| 80 double margin_left; |
| 81 } PageSizeMargins; |
| 82 |
| 83 // Given the |device| and |canvas| to draw on, prints the appropriate headers |
| 84 // and footers using strings from |header_footer_info| on to the canvas. |
| 85 void PrintHeaderAndFooter(skia::VectorPlatformDeviceSkia* device, |
| 86 const SkRefPtr<skia::VectorCanvas>& canvas, |
| 87 int page_number, int total_pages, |
| 88 float webkit_scale_factor, |
| 89 PageSizeMargins& page_size_margins, |
| 90 const DictionaryValue* header_footer_info); |
| 91 |
69 // PrintWebViewHelper handles most of the printing grunt work for RenderView. | 92 // PrintWebViewHelper handles most of the printing grunt work for RenderView. |
70 // We plan on making print asynchronous and that will require copying the DOM | 93 // We plan on making print asynchronous and that will require copying the DOM |
71 // of the document and creating a new WebView with the contents. | 94 // of the document and creating a new WebView with the contents. |
72 class PrintWebViewHelper : public RenderViewObserver, | 95 class PrintWebViewHelper : public RenderViewObserver, |
73 public RenderViewObserverTracker<PrintWebViewHelper>, | 96 public RenderViewObserverTracker<PrintWebViewHelper>, |
74 public WebKit::WebViewClient, | 97 public WebKit::WebViewClient, |
75 public WebKit::WebFrameClient { | 98 public WebKit::WebFrameClient { |
76 public: | 99 public: |
77 explicit PrintWebViewHelper(RenderView* render_view); | 100 explicit PrintWebViewHelper(RenderView* render_view); |
78 virtual ~PrintWebViewHelper(); | 101 virtual ~PrintWebViewHelper(); |
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103 | 126 |
104 // Message handlers --------------------------------------------------------- | 127 // Message handlers --------------------------------------------------------- |
105 | 128 |
106 // Print the document. | 129 // Print the document. |
107 void OnPrintPages(); | 130 void OnPrintPages(); |
108 | 131 |
109 // Initiate print preview. | 132 // Initiate print preview. |
110 void OnInitiatePrintPreview(); | 133 void OnInitiatePrintPreview(); |
111 | 134 |
112 // Start the process of generating a print preview using |settings|. | 135 // Start the process of generating a print preview using |settings|. |
113 void OnPrintPreview(const base::DictionaryValue& settings); | 136 // |header_footer_info| contains the necessary strings generated by the |
| 137 // browser process to be printed as headers and footers if requested by the |
| 138 // user. |
| 139 void OnPrintPreview(const base::DictionaryValue& settings, |
| 140 const DictionaryValue& header_footer_info); |
114 // Initialize the print preview document. | 141 // Initialize the print preview document. |
115 bool CreatePreviewDocument(); | 142 bool CreatePreviewDocument(); |
116 | 143 |
117 // Continue generating the print preview. | 144 // Continue generating the print preview. |
118 void OnContinuePreview(); | 145 void OnContinuePreview(); |
119 // Renders a print preview page. |page_number| is 0-based. | 146 // Renders a print preview page. |page_number| is 0-based. |
120 void RenderPreviewPage(int page_number); | 147 void RenderPreviewPage(int page_number); |
121 // Finalize the print preview document. | 148 // Finalize the print preview document. |
122 bool FinalizePreviewDocument(); | 149 bool FinalizePreviewDocument(); |
123 | 150 |
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181 // It will implicitly revert the document to display CSS media type. | 208 // It will implicitly revert the document to display CSS media type. |
182 bool PrintPages(const PrintMsg_PrintPages_Params& params, | 209 bool PrintPages(const PrintMsg_PrintPages_Params& params, |
183 WebKit::WebFrame* frame, | 210 WebKit::WebFrame* frame, |
184 WebKit::WebNode* node); | 211 WebKit::WebNode* node); |
185 | 212 |
186 // Prints the page listed in |params|. | 213 // Prints the page listed in |params|. |
187 #if defined(USE_X11) | 214 #if defined(USE_X11) |
188 void PrintPageInternal(const PrintMsg_PrintPage_Params& params, | 215 void PrintPageInternal(const PrintMsg_PrintPage_Params& params, |
189 const gfx::Size& canvas_size, | 216 const gfx::Size& canvas_size, |
190 WebKit::WebFrame* frame, | 217 WebKit::WebFrame* frame, |
191 printing::Metafile* metafile); | 218 printing::Metafile* metafile, |
| 219 bool is_preview); |
192 #else | 220 #else |
193 void PrintPageInternal(const PrintMsg_PrintPage_Params& params, | 221 void PrintPageInternal(const PrintMsg_PrintPage_Params& params, |
194 const gfx::Size& canvas_size, | 222 const gfx::Size& canvas_size, |
195 WebKit::WebFrame* frame); | 223 WebKit::WebFrame* frame); |
196 #endif | 224 #endif |
197 | 225 |
198 // Render the frame for printing. | 226 // Render the frame for printing. |
199 bool RenderPagesForPrint(WebKit::WebFrame* frame, WebKit::WebNode* node); | 227 bool RenderPagesForPrint(WebKit::WebFrame* frame, WebKit::WebNode* node); |
200 | 228 |
201 // Platform specific helper function for rendering page(s) to |metafile|. | 229 // Platform specific helper function for rendering page(s) to |metafile|. |
202 #if defined(OS_WIN) | 230 #if defined(OS_WIN) |
203 void RenderPage(const PrintMsg_Print_Params& params, float* scale_factor, | 231 void RenderPage(const PrintMsg_Print_Params& params, float* scale_factor, |
204 int page_number, bool is_preview, WebKit::WebFrame* frame, | 232 int page_number, bool is_preview, WebKit::WebFrame* frame, |
205 scoped_ptr<printing::Metafile>* metafile); | 233 scoped_ptr<printing::Metafile>* metafile); |
206 #elif defined(OS_MACOSX) | 234 #elif defined(OS_MACOSX) |
207 void RenderPage(const gfx::Size& page_size, const gfx::Rect& content_area, | 235 void RenderPage(const gfx::Size& page_size, const gfx::Rect& content_area, |
208 const float& scale_factor, int page_number, | 236 const float& scale_factor, int page_number, |
209 WebKit::WebFrame* frame, printing::Metafile* metafile); | 237 WebKit::WebFrame* frame, printing::Metafile* metafile, |
| 238 bool is_preview, bool display_header_footer); |
210 #elif defined(OS_POSIX) | 239 #elif defined(OS_POSIX) |
211 bool RenderPages(const PrintMsg_PrintPages_Params& params, | 240 bool RenderPages(const PrintMsg_PrintPages_Params& params, |
212 WebKit::WebFrame* frame, WebKit::WebNode* node, | 241 WebKit::WebFrame* frame, WebKit::WebNode* node, |
213 int* page_count, printing::Metafile* metafile); | 242 int* page_count, printing::Metafile* metafile); |
214 #endif // defined(OS_WIN) | 243 #endif // defined(OS_WIN) |
215 | 244 |
216 // Helper methods ----------------------------------------------------------- | 245 // Helper methods ----------------------------------------------------------- |
217 | 246 |
218 bool CopyAndPrint(WebKit::WebFrame* web_frame); | 247 bool CopyAndPrint(WebKit::WebFrame* web_frame); |
219 | 248 |
220 bool CopyMetafileDataToSharedMem(printing::Metafile* metafile, | 249 bool CopyMetafileDataToSharedMem(printing::Metafile* metafile, |
221 base::SharedMemoryHandle* shared_mem_handle); | 250 base::SharedMemoryHandle* shared_mem_handle); |
222 | 251 |
223 void GetPageSizeAndMarginsInPoints( | 252 PageSizeMargins GetPageSizeAndMarginsInPoints( |
224 WebKit::WebFrame* frame, | 253 WebKit::WebFrame* frame, |
225 int page_index, | 254 int page_index, |
226 const PrintMsg_Print_Params& default_params, | 255 const PrintMsg_Print_Params& default_params); |
227 double* content_width_in_points, | |
228 double* content_height_in_points, | |
229 double* margin_top_in_points, | |
230 double* margin_right_in_points, | |
231 double* margin_bottom_in_points, | |
232 double* margin_left_in_points); | |
233 | 256 |
234 void UpdatePrintableSizeInPrintParameters(WebKit::WebFrame* frame, | 257 void UpdatePrintableSizeInPrintParameters(WebKit::WebFrame* frame, |
235 WebKit::WebNode* node, | 258 WebKit::WebNode* node, |
236 PrintMsg_Print_Params* params); | 259 PrintMsg_Print_Params* params); |
237 | 260 |
238 bool GetPrintFrame(WebKit::WebFrame** frame); | 261 bool GetPrintFrame(WebKit::WebFrame** frame); |
239 | 262 |
240 // This reports the current time - |start_time| as the time to render a page. | 263 // This reports the current time - |start_time| as the time to render a page. |
241 void ReportPreviewPageRenderTime(base::TimeTicks start_time); | 264 void ReportPreviewPageRenderTime(base::TimeTicks start_time); |
242 | 265 |
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270 // Used for scripted initiated printing blocking. | 293 // Used for scripted initiated printing blocking. |
271 base::Time last_cancelled_script_print_; | 294 base::Time last_cancelled_script_print_; |
272 int user_cancelled_scripted_print_count_; | 295 int user_cancelled_scripted_print_count_; |
273 | 296 |
274 // Let the browser process know of a printing failure. Only set to false when | 297 // Let the browser process know of a printing failure. Only set to false when |
275 // the failure came from the browser in the first place. | 298 // the failure came from the browser in the first place. |
276 bool notify_browser_of_print_failure_; | 299 bool notify_browser_of_print_failure_; |
277 | 300 |
278 scoped_ptr<PrintMsg_PrintPages_Params> old_print_pages_params_; | 301 scoped_ptr<PrintMsg_PrintPages_Params> old_print_pages_params_; |
279 | 302 |
| 303 // Contains strings generated by the browser process to be printed as headers |
| 304 // and footers if requested by the user. |
| 305 const DictionaryValue* header_footer_info_; |
| 306 |
280 // Keeps track of the state of print preview between messages. | 307 // Keeps track of the state of print preview between messages. |
281 class PrintPreviewContext { | 308 class PrintPreviewContext { |
282 public: | 309 public: |
283 PrintPreviewContext(); | 310 PrintPreviewContext(); |
284 ~PrintPreviewContext(); | 311 ~PrintPreviewContext(); |
285 | 312 |
286 // Initializes the print preview context. Need to be called to set | 313 // Initializes the print preview context. Need to be called to set |
287 // the |web_frame| / |web_node| to generate the print preview for. | 314 // the |web_frame| / |web_node| to generate the print preview for. |
288 void InitWithFrame(WebKit::WebFrame* web_frame); | 315 void InitWithFrame(WebKit::WebFrame* web_frame); |
289 void InitWithNode(const WebKit::WebNode& web_node); | 316 void InitWithNode(const WebKit::WebNode& web_node); |
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358 | 385 |
359 State state_; | 386 State state_; |
360 }; | 387 }; |
361 | 388 |
362 PrintPreviewContext print_preview_context_; | 389 PrintPreviewContext print_preview_context_; |
363 | 390 |
364 DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper); | 391 DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper); |
365 }; | 392 }; |
366 | 393 |
367 #endif // CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_ | 394 #endif // CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_ |
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