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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/utf_string_conversions.h" | |
vandebo (ex-Chrome)
2011/07/19 21:31:20
In the header, we only include things that are use
| |
15 #include "base/values.h" | |
14 #include "content/renderer/render_view_observer.h" | 16 #include "content/renderer/render_view_observer.h" |
15 #include "content/renderer/render_view_observer_tracker.h" | 17 #include "content/renderer/render_view_observer_tracker.h" |
16 #include "printing/metafile.h" | 18 #include "printing/metafile.h" |
19 #include "skia/ext/vector_canvas.h" | |
20 #include "third_party/skia/include/core/SkPaint.h" | |
21 #include "third_party/skia/include/core/SkRefCnt.h" | |
22 #include "third_party/skia/include/core/SkScalar.h" | |
17 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrameClient.h" | 23 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrameClient.h" |
18 #include "third_party/WebKit/Source/WebKit/chromium/public/WebViewClient.h" | 24 #include "third_party/WebKit/Source/WebKit/chromium/public/WebViewClient.h" |
19 #include "ui/gfx/size.h" | 25 #include "ui/gfx/size.h" |
20 | 26 |
21 struct PrintMsg_Print_Params; | 27 struct PrintMsg_Print_Params; |
22 struct PrintMsg_PrintPage_Params; | 28 struct PrintMsg_PrintPage_Params; |
23 struct PrintMsg_PrintPages_Params; | 29 struct PrintMsg_PrintPages_Params; |
24 | 30 |
25 namespace base { | 31 namespace base { |
26 class DictionaryValue; | 32 class DictionaryValue; |
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59 gfx::Size print_canvas_size_; | 65 gfx::Size print_canvas_size_; |
60 gfx::Size prev_view_size_; | 66 gfx::Size prev_view_size_; |
61 gfx::Size prev_scroll_offset_; | 67 gfx::Size prev_scroll_offset_; |
62 int expected_pages_count_; | 68 int expected_pages_count_; |
63 bool use_browser_overlays_; | 69 bool use_browser_overlays_; |
64 bool finished_; | 70 bool finished_; |
65 | 71 |
66 DISALLOW_COPY_AND_ASSIGN(PrepareFrameAndViewForPrint); | 72 DISALLOW_COPY_AND_ASSIGN(PrepareFrameAndViewForPrint); |
67 }; | 73 }; |
68 | 74 |
75 typedef struct PageSizeMargins { | |
76 double content_width; | |
77 double content_height; | |
78 double margin_top; | |
79 double margin_right; | |
80 double margin_bottom; | |
81 double margin_left; | |
82 } PageSizeMargins; | |
83 | |
84 void PrintHeaderAndFooter(SkDevice *device, | |
85 const SkRefPtr<skia::VectorCanvas>& canvas, | |
vandebo (ex-Chrome)
2011/07/19 21:31:20
skia::VectorCanvas* canvas,
| |
86 int page_number, int total_pages, | |
87 float webkit_scale_factor, | |
88 PageSizeMargins& page_size_margins, | |
89 const DictionaryValue* header_footer_info); | |
90 | |
69 // PrintWebViewHelper handles most of the printing grunt work for RenderView. | 91 // PrintWebViewHelper handles most of the printing grunt work for RenderView. |
70 // We plan on making print asynchronous and that will require copying the DOM | 92 // 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. | 93 // of the document and creating a new WebView with the contents. |
72 class PrintWebViewHelper : public RenderViewObserver, | 94 class PrintWebViewHelper : public RenderViewObserver, |
73 public RenderViewObserverTracker<PrintWebViewHelper>, | 95 public RenderViewObserverTracker<PrintWebViewHelper>, |
74 public WebKit::WebViewClient, | 96 public WebKit::WebViewClient, |
75 public WebKit::WebFrameClient { | 97 public WebKit::WebFrameClient { |
76 public: | 98 public: |
77 explicit PrintWebViewHelper(RenderView* render_view); | 99 explicit PrintWebViewHelper(RenderView* render_view); |
78 virtual ~PrintWebViewHelper(); | 100 virtual ~PrintWebViewHelper(); |
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103 | 125 |
104 // Message handlers --------------------------------------------------------- | 126 // Message handlers --------------------------------------------------------- |
105 | 127 |
106 // Print the document. | 128 // Print the document. |
107 void OnPrintPages(); | 129 void OnPrintPages(); |
108 | 130 |
109 // Initiate print preview. | 131 // Initiate print preview. |
110 void OnInitiatePrintPreview(); | 132 void OnInitiatePrintPreview(); |
111 | 133 |
112 // Start the process of generating a print preview using |settings|. | 134 // Start the process of generating a print preview using |settings|. |
113 void OnPrintPreview(const base::DictionaryValue& settings); | 135 // |header_footer_info| contains the necessary strings generated by the |
136 // browser process to be printed as headers and footers if requested by the | |
137 // user. | |
138 void OnPrintPreview(const base::DictionaryValue& settings, | |
139 const DictionaryValue& header_footer_info); | |
114 // Initialize the print preview document. | 140 // Initialize the print preview document. |
115 bool CreatePreviewDocument(); | 141 bool CreatePreviewDocument(); |
116 | 142 |
117 // Continue generating the print preview. | 143 // Continue generating the print preview. |
118 void OnContinuePreview(); | 144 void OnContinuePreview(); |
119 // Renders a print preview page. |page_number| is 0-based. | 145 // Renders a print preview page. |page_number| is 0-based. |
120 void RenderPreviewPage(int page_number); | 146 void RenderPreviewPage(int page_number); |
121 // Finalize the print preview document. | 147 // Finalize the print preview document. |
122 bool FinalizePreviewDocument(); | 148 bool FinalizePreviewDocument(); |
123 | 149 |
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181 // It will implicitly revert the document to display CSS media type. | 207 // It will implicitly revert the document to display CSS media type. |
182 bool PrintPages(const PrintMsg_PrintPages_Params& params, | 208 bool PrintPages(const PrintMsg_PrintPages_Params& params, |
183 WebKit::WebFrame* frame, | 209 WebKit::WebFrame* frame, |
184 WebKit::WebNode* node); | 210 WebKit::WebNode* node); |
185 | 211 |
186 // Prints the page listed in |params|. | 212 // Prints the page listed in |params|. |
187 #if defined(USE_X11) | 213 #if defined(USE_X11) |
188 void PrintPageInternal(const PrintMsg_PrintPage_Params& params, | 214 void PrintPageInternal(const PrintMsg_PrintPage_Params& params, |
189 const gfx::Size& canvas_size, | 215 const gfx::Size& canvas_size, |
190 WebKit::WebFrame* frame, | 216 WebKit::WebFrame* frame, |
191 printing::Metafile* metafile); | 217 printing::Metafile* metafile, |
218 bool is_preview); | |
192 #else | 219 #else |
193 void PrintPageInternal(const PrintMsg_PrintPage_Params& params, | 220 void PrintPageInternal(const PrintMsg_PrintPage_Params& params, |
194 const gfx::Size& canvas_size, | 221 const gfx::Size& canvas_size, |
195 WebKit::WebFrame* frame); | 222 WebKit::WebFrame* frame); |
196 #endif | 223 #endif |
197 | 224 |
198 // Render the frame for printing. | 225 // Render the frame for printing. |
199 bool RenderPagesForPrint(WebKit::WebFrame* frame, WebKit::WebNode* node); | 226 bool RenderPagesForPrint(WebKit::WebFrame* frame, WebKit::WebNode* node); |
200 | 227 |
201 // Platform specific helper function for rendering page(s) to |metafile|. | 228 // Platform specific helper function for rendering page(s) to |metafile|. |
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213 int* page_count, printing::Metafile* metafile); | 240 int* page_count, printing::Metafile* metafile); |
214 #endif // defined(OS_WIN) | 241 #endif // defined(OS_WIN) |
215 | 242 |
216 // Helper methods ----------------------------------------------------------- | 243 // Helper methods ----------------------------------------------------------- |
217 | 244 |
218 bool CopyAndPrint(WebKit::WebFrame* web_frame); | 245 bool CopyAndPrint(WebKit::WebFrame* web_frame); |
219 | 246 |
220 bool CopyMetafileDataToSharedMem(printing::Metafile* metafile, | 247 bool CopyMetafileDataToSharedMem(printing::Metafile* metafile, |
221 base::SharedMemoryHandle* shared_mem_handle); | 248 base::SharedMemoryHandle* shared_mem_handle); |
222 | 249 |
223 void GetPageSizeAndMarginsInPoints( | 250 PageSizeMargins GetPageSizeAndMarginsInPoints( |
224 WebKit::WebFrame* frame, | 251 WebKit::WebFrame* frame, |
225 int page_index, | 252 int page_index, |
226 const PrintMsg_Print_Params& default_params, | 253 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 | 254 |
234 void UpdatePrintableSizeInPrintParameters(WebKit::WebFrame* frame, | 255 void UpdatePrintableSizeInPrintParameters(WebKit::WebFrame* frame, |
235 WebKit::WebNode* node, | 256 WebKit::WebNode* node, |
236 PrintMsg_Print_Params* params); | 257 PrintMsg_Print_Params* params); |
237 | 258 |
238 bool GetPrintFrame(WebKit::WebFrame** frame); | 259 bool GetPrintFrame(WebKit::WebFrame** frame); |
239 | 260 |
240 // This reports the current time - |start_time| as the time to render a page. | 261 // This reports the current time - |start_time| as the time to render a page. |
241 void ReportPreviewPageRenderTime(base::TimeTicks start_time); | 262 void ReportPreviewPageRenderTime(base::TimeTicks start_time); |
242 | 263 |
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270 // Used for scripted initiated printing blocking. | 291 // Used for scripted initiated printing blocking. |
271 base::Time last_cancelled_script_print_; | 292 base::Time last_cancelled_script_print_; |
272 int user_cancelled_scripted_print_count_; | 293 int user_cancelled_scripted_print_count_; |
273 | 294 |
274 // Let the browser process know of a printing failure. Only set to false when | 295 // 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. | 296 // the failure came from the browser in the first place. |
276 bool notify_browser_of_print_failure_; | 297 bool notify_browser_of_print_failure_; |
277 | 298 |
278 scoped_ptr<PrintMsg_PrintPages_Params> old_print_pages_params_; | 299 scoped_ptr<PrintMsg_PrintPages_Params> old_print_pages_params_; |
279 | 300 |
301 // Contains strings generated by the browser process to be printed as headers | |
302 // and footers if requested by the user. | |
303 const DictionaryValue* header_footer_info_; | |
304 | |
280 // Keeps track of the state of print preview between messages. | 305 // Keeps track of the state of print preview between messages. |
281 class PrintPreviewContext { | 306 class PrintPreviewContext { |
282 public: | 307 public: |
283 PrintPreviewContext(); | 308 PrintPreviewContext(); |
284 ~PrintPreviewContext(); | 309 ~PrintPreviewContext(); |
285 | 310 |
286 // Initializes the print preview context. Need to be called to set | 311 // Initializes the print preview context. Need to be called to set |
287 // the |web_frame| / |web_node| to generate the print preview for. | 312 // the |web_frame| / |web_node| to generate the print preview for. |
288 void InitWithFrame(WebKit::WebFrame* web_frame); | 313 void InitWithFrame(WebKit::WebFrame* web_frame); |
289 void InitWithNode(const WebKit::WebNode& web_node); | 314 void InitWithNode(const WebKit::WebNode& web_node); |
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358 | 383 |
359 State state_; | 384 State state_; |
360 }; | 385 }; |
361 | 386 |
362 PrintPreviewContext print_preview_context_; | 387 PrintPreviewContext print_preview_context_; |
363 | 388 |
364 DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper); | 389 DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper); |
365 }; | 390 }; |
366 | 391 |
367 #endif // CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_ | 392 #endif // CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_ |
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