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Side by Side Diff: pdf/pdfium/pdfium_engine.h

Issue 2828413005: Clang format pdf/ (Closed)
Patch Set: Manual tweaks Created 3 years, 8 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 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 PDF_PDFIUM_PDFIUM_ENGINE_H_ 5 #ifndef PDF_PDFIUM_PDFIUM_ENGINE_H_
6 #define PDF_PDFIUM_PDFIUM_ENGINE_H_ 6 #define PDF_PDFIUM_PDFIUM_ENGINE_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 #include <stdint.h> 9 #include <stdint.h>
10 10
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129 129
130 private: 130 private:
131 // This helper class is used to detect the difference in selection between 131 // This helper class is used to detect the difference in selection between
132 // construction and destruction. At destruction, it invalidates all the 132 // construction and destruction. At destruction, it invalidates all the
133 // parts that are newly selected, along with all the parts that used to be 133 // parts that are newly selected, along with all the parts that used to be
134 // selected but are not anymore. 134 // selected but are not anymore.
135 class SelectionChangeInvalidator { 135 class SelectionChangeInvalidator {
136 public: 136 public:
137 explicit SelectionChangeInvalidator(PDFiumEngine* engine); 137 explicit SelectionChangeInvalidator(PDFiumEngine* engine);
138 ~SelectionChangeInvalidator(); 138 ~SelectionChangeInvalidator();
139
139 private: 140 private:
140 // Sets the given container to the all the currently visible selection 141 // Sets the given container to the all the currently visible selection
141 // rectangles, in screen coordinates. 142 // rectangles, in screen coordinates.
142 void GetVisibleSelectionsScreenRects(std::vector<pp::Rect>* rects); 143 void GetVisibleSelectionsScreenRects(std::vector<pp::Rect>* rects);
143 144
144 PDFiumEngine* engine_; 145 PDFiumEngine* engine_;
145 // Screen rectangles that were selected on construction. 146 // Screen rectangles that were selected on construction.
146 std::vector<pp::Rect> old_selections_; 147 std::vector<pp::Rect> old_selections_;
147 // The origin at the time this object was constructed. 148 // The origin at the time this object was constructed.
148 pp::Point previous_origin_; 149 pp::Point previous_origin_;
(...skipping 26 matching lines...) Expand all
175 ~FindTextIndex(); 176 ~FindTextIndex();
176 177
177 bool valid() const { return valid_; } 178 bool valid() const { return valid_; }
178 void Invalidate(); 179 void Invalidate();
179 180
180 size_t GetIndex() const; 181 size_t GetIndex() const;
181 void SetIndex(size_t index); 182 void SetIndex(size_t index);
182 size_t IncrementIndex(); 183 size_t IncrementIndex();
183 184
184 private: 185 private:
185 bool valid_; // Whether |index_| is valid or not. 186 bool valid_; // Whether |index_| is valid or not.
186 size_t index_; // The current search result, 0-based. 187 size_t index_; // The current search result, 0-based.
187 188
188 DISALLOW_COPY_AND_ASSIGN(FindTextIndex); 189 DISALLOW_COPY_AND_ASSIGN(FindTextIndex);
189 }; 190 };
190 191
191 friend class SelectionChangeInvalidator; 192 friend class SelectionChangeInvalidator;
192 193
193 struct FileAvail : public FX_FILEAVAIL { 194 struct FileAvail : public FX_FILEAVAIL {
194 DocumentLoader* loader; 195 DocumentLoader* loader;
195 }; 196 };
196 197
197 struct DownloadHints : public FX_DOWNLOADHINTS { 198 struct DownloadHints : public FX_DOWNLOADHINTS {
198 DocumentLoader* loader; 199 DocumentLoader* loader;
199 }; 200 };
200 201
201 // PDFium interface to get block of data. 202 // PDFium interface to get block of data.
202 static int GetBlock(void* param, unsigned long position, 203 static int GetBlock(void* param,
203 unsigned char* buffer, unsigned long size); 204 unsigned long position,
205 unsigned char* buffer,
206 unsigned long size);
204 207
205 // PDFium interface to check is block of data is available. 208 // PDFium interface to check is block of data is available.
206 static FPDF_BOOL IsDataAvail(FX_FILEAVAIL* param, 209 static FPDF_BOOL IsDataAvail(FX_FILEAVAIL* param, size_t offset, size_t size);
207 size_t offset, size_t size);
208 210
209 // PDFium interface to request download of the block of data. 211 // PDFium interface to request download of the block of data.
210 static void AddSegment(FX_DOWNLOADHINTS* param, 212 static void AddSegment(FX_DOWNLOADHINTS* param, size_t offset, size_t size);
211 size_t offset, size_t size);
212 213
213 // We finished getting the pdf file, so load it. This will complete 214 // We finished getting the pdf file, so load it. This will complete
214 // asynchronously (due to password fetching) and may be run multiple times. 215 // asynchronously (due to password fetching) and may be run multiple times.
215 void LoadDocument(); 216 void LoadDocument();
216 217
217 // Try loading the document. Returns true if the document is successfully 218 // Try loading the document. Returns true if the document is successfully
218 // loaded or is already loaded otherwise it will return false. If there is a 219 // loaded or is already loaded otherwise it will return false. If there is a
219 // password, then |password| is non-empty. If the document could not be loaded 220 // password, then |password| is non-empty. If the document could not be loaded
220 // and needs a password, |needs_password| will be set to true. 221 // and needs a password, |needs_password| will be set to true.
221 bool TryLoadingDoc(const std::string& password, bool* needs_password); 222 bool TryLoadingDoc(const std::string& password, bool* needs_password);
222 223
223 // Asks the user for the document password and then continue loading the 224 // Asks the user for the document password and then continue loading the
224 // document. 225 // document.
225 void GetPasswordAndLoad(); 226 void GetPasswordAndLoad();
226 227
227 // Called when the password has been retrieved. 228 // Called when the password has been retrieved.
228 void OnGetPasswordComplete(int32_t result, 229 void OnGetPasswordComplete(int32_t result, const pp::Var& password);
229 const pp::Var& password);
230 230
231 // Continues loading the document when the password has been retrieved, or if 231 // Continues loading the document when the password has been retrieved, or if
232 // there is no password. If there is no password, then |password| is empty. 232 // there is no password. If there is no password, then |password| is empty.
233 void ContinueLoadingDocument(const std::string& password); 233 void ContinueLoadingDocument(const std::string& password);
234 234
235 // Finishes loading the document. Recalculate the document size if there were 235 // Finishes loading the document. Recalculate the document size if there were
236 // pages that were not previously available. 236 // pages that were not previously available.
237 // Also notifies the client that the document has been loaded. 237 // Also notifies the client that the document has been loaded.
238 // This should only be called after |doc_| has been loaded and the document is 238 // This should only be called after |doc_| has been loaded and the document is
239 // fully downloaded. 239 // fully downloaded.
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373 // Given a page index, returns the corresponding index in progressive_rects_, 373 // Given a page index, returns the corresponding index in progressive_rects_,
374 // or -1 if it doesn't exist. 374 // or -1 if it doesn't exist.
375 int GetProgressiveIndex(int page_index) const; 375 int GetProgressiveIndex(int page_index) const;
376 376
377 // Creates a FPDF_BITMAP from a rectangle in screen coordinates. 377 // Creates a FPDF_BITMAP from a rectangle in screen coordinates.
378 FPDF_BITMAP CreateBitmap(const pp::Rect& rect, 378 FPDF_BITMAP CreateBitmap(const pp::Rect& rect,
379 pp::ImageData* image_data) const; 379 pp::ImageData* image_data) const;
380 380
381 // Given a rectangle in screen coordinates, returns the coordinates in the 381 // Given a rectangle in screen coordinates, returns the coordinates in the
382 // units that PDFium rendering functions expect. 382 // units that PDFium rendering functions expect.
383 void GetPDFiumRect(int page_index, const pp::Rect& rect, int* start_x, 383 void GetPDFiumRect(int page_index,
384 int* start_y, int* size_x, int* size_y) const; 384 const pp::Rect& rect,
385 int* start_x,
386 int* start_y,
387 int* size_x,
388 int* size_y) const;
385 389
386 // Returns the rendering flags to pass to PDFium. 390 // Returns the rendering flags to pass to PDFium.
387 int GetRenderingFlags() const; 391 int GetRenderingFlags() const;
388 392
389 // Returns the currently visible rectangle in document coordinates. 393 // Returns the currently visible rectangle in document coordinates.
390 pp::Rect GetVisibleRect() const; 394 pp::Rect GetVisibleRect() const;
391 395
392 // Given a rectangle in document coordinates, returns the rectange into screen 396 // Given a rectangle in document coordinates, returns the rectange into screen
393 // coordinates (i.e. 0,0 is top left corner of plugin area). If it's not 397 // coordinates (i.e. 0,0 is top left corner of plugin area). If it's not
394 // visible, an empty rectangle is returned. 398 // visible, an empty rectangle is returned.
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667 FileAvail file_availability_; 671 FileAvail file_availability_;
668 // Interface structure to request data chunks from the document stream. 672 // Interface structure to request data chunks from the document stream.
669 DownloadHints download_hints_; 673 DownloadHints download_hints_;
670 // Pointer to the document availability interface. 674 // Pointer to the document availability interface.
671 FPDF_AVAIL fpdf_availability_; 675 FPDF_AVAIL fpdf_availability_;
672 676
673 pp::Size default_page_size_; 677 pp::Size default_page_size_;
674 678
675 // Used to manage timers that form fill API needs. The pair holds the timer 679 // Used to manage timers that form fill API needs. The pair holds the timer
676 // period, in ms, and the callback function. 680 // period, in ms, and the callback function.
677 std::map<int, std::pair<int, TimerCallback> > timers_; 681 std::map<int, std::pair<int, TimerCallback>> timers_;
678 int next_timer_id_; 682 int next_timer_id_;
679 683
680 // Holds the zero-based page index of the last page that the mouse clicked on. 684 // Holds the zero-based page index of the last page that the mouse clicked on.
681 int last_page_mouse_down_; 685 int last_page_mouse_down_;
682 686
683 // Holds the zero-based page index of the most visible page; refreshed by 687 // Holds the zero-based page index of the most visible page; refreshed by
684 // calling CalculateVisiblePages() 688 // calling CalculateVisiblePages()
685 int most_visible_page_; 689 int most_visible_page_;
686 690
687 // Holds the page index requested by PDFium while the scroll operation 691 // Holds the page index requested by PDFium while the scroll operation
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789 bool GetPDFPageSizeByIndex(const void* pdf_buffer, 793 bool GetPDFPageSizeByIndex(const void* pdf_buffer,
790 int pdf_buffer_size, 794 int pdf_buffer_size,
791 int page_number, 795 int page_number,
792 double* width, 796 double* width,
793 double* height) override; 797 double* height) override;
794 }; 798 };
795 799
796 } // namespace chrome_pdf 800 } // namespace chrome_pdf
797 801
798 #endif // PDF_PDFIUM_PDFIUM_ENGINE_H_ 802 #endif // PDF_PDFIUM_PDFIUM_ENGINE_H_
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