diff options
| author | Bo Xu <bo_xu@foxitsoftware.com> | 2014-11-03 18:38:41 -0800 |
|---|---|---|
| committer | Bo Xu <bo_xu@foxitsoftware.com> | 2014-11-03 18:38:41 -0800 |
| commit | 9d9f6c347f56b07ec519c93097066a7eb541263d (patch) | |
| tree | 040b7a6aa6618e31fc11500d658b56567fbc89b7 /xfa_test/pdf/pdfium/pdfium_engine.cc | |
| parent | 062a0798d91646959e8092a129fbe706534ca387 (diff) | |
| download | pdfium-9d9f6c347f56b07ec519c93097066a7eb541263d.tar.xz | |
Remove xfa_test for delivery
Diffstat (limited to 'xfa_test/pdf/pdfium/pdfium_engine.cc')
| -rw-r--r-- | xfa_test/pdf/pdfium/pdfium_engine.cc | 3883 |
1 files changed, 0 insertions, 3883 deletions
diff --git a/xfa_test/pdf/pdfium/pdfium_engine.cc b/xfa_test/pdf/pdfium/pdfium_engine.cc deleted file mode 100644 index ff77d572ad..0000000000 --- a/xfa_test/pdf/pdfium/pdfium_engine.cc +++ /dev/null @@ -1,3883 +0,0 @@ -// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "pdf/pdfium/pdfium_engine.h"
-
-#include <math.h>
-
-#include "base/json/json_writer.h"
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/stl_util.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_piece.h"
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/values.h"
-#include "pdf/draw_utils.h"
-#include "pdf/pdfium/pdfium_mem_buffer_file_read.h"
-#include "pdf/pdfium/pdfium_mem_buffer_file_write.h"
-#include "ppapi/c/pp_errors.h"
-#include "ppapi/c/pp_input_event.h"
-#include "ppapi/c/ppb_core.h"
-#include "ppapi/c/private/ppb_pdf.h"
-#include "ppapi/cpp/dev/memory_dev.h"
-#include "ppapi/cpp/input_event.h"
-#include "ppapi/cpp/instance.h"
-#include "ppapi/cpp/module.h"
-#include "ppapi/cpp/private/pdf.h"
-#include "ppapi/cpp/trusted/browser_font_trusted.h"
-#include "ppapi/cpp/url_response_info.h"
-#include "ppapi/cpp/var.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdf_ext.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdf_flatten.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdf_searchex.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdf_sysfontinfo.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdf_transformpage.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdfedit.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdfoom.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdfppo.h"
-#include "third_party/pdfium/fpdfsdk/include/fpdfsave.h"
-#include "third_party/pdfium/fpdfsdk/include/pdfwindow/PDFWindow.h"
-#include "third_party/pdfium/fpdfsdk/include/pdfwindow/PWL_FontMap.h"
-#include "ui/events/keycodes/keyboard_codes.h"
-
-namespace chrome_pdf {
-
-namespace {
-
-#define kPageShadowTop 3
-#define kPageShadowBottom 7
-#define kPageShadowLeft 5
-#define kPageShadowRight 5
-
-#define kPageSeparatorThickness 4
-#define kHighlightColorR 153
-#define kHighlightColorG 193
-#define kHighlightColorB 218
-
-const uint32 kPendingPageColor = 0xFFEEEEEE;
-
-#define kFormHighlightColor 0xFFE4DD
-#define kFormHighlightAlpha 100
-
-#define kMaxPasswordTries 3
-
-// See Table 3.20 in
-// http://www.adobe.com/devnet/acrobat/pdfs/pdf_reference_1-7.pdf
-#define kPDFPermissionPrintLowQualityMask 1 << 2
-#define kPDFPermissionPrintHighQualityMask 1 << 11
-#define kPDFPermissionCopyMask 1 << 4
-#define kPDFPermissionCopyAccessibleMask 1 << 9
-
-#define kLoadingTextVerticalOffset 50
-
-// The maximum amount of time we'll spend doing a paint before we give back
-// control of the thread.
-#define kMaxProgressivePaintTimeMs 50
-
-// The maximum amount of time we'll spend doing the first paint. This is less
-// than the above to keep things smooth if the user is scrolling quickly. We
-// try painting a little because with accelerated compositing, we get flushes
-// only every 16 ms. If we were to wait until the next flush to paint the rest
-// of the pdf, we would never get to draw the pdf and would only draw the
-// scrollbars. This value is picked to give enough time for gpu related code to
-// do its thing and still fit within the timelimit for 60Hz. For the
-// non-composited case, this doesn't make things worse since we're still
-// painting the scrollbars > 60 Hz.
-#define kMaxInitialProgressivePaintTimeMs 10
-
-// Copied from printing/units.cc because we don't want to depend on printing
-// since it brings in libpng which causes duplicate symbols with PDFium.
-const int kPointsPerInch = 72;
-const int kPixelsPerInch = 96;
-
-struct ClipBox {
- float left;
- float right;
- float top;
- float bottom;
-};
-
-int ConvertUnit(int value, int old_unit, int new_unit) {
- // With integer arithmetic, to divide a value with correct rounding, you need
- // to add half of the divisor value to the dividend value. You need to do the
- // reverse with negative number.
- if (value >= 0) {
- return ((value * new_unit) + (old_unit / 2)) / old_unit;
- } else {
- return ((value * new_unit) - (old_unit / 2)) / old_unit;
- }
-}
-
-std::vector<uint32_t> GetPageNumbersFromPrintPageNumberRange(
- const PP_PrintPageNumberRange_Dev* page_ranges,
- uint32_t page_range_count) {
- std::vector<uint32_t> page_numbers;
- for (uint32_t index = 0; index < page_range_count; ++index) {
- for (uint32_t page_number = page_ranges[index].first_page_number;
- page_number <= page_ranges[index].last_page_number; ++page_number) {
- page_numbers.push_back(page_number);
- }
- }
- return page_numbers;
-}
-
-#if defined(OS_LINUX)
-
-PP_Instance g_last_instance_id;
-
-struct PDFFontSubstitution {
- const char* pdf_name;
- const char* face;
- bool bold;
- bool italic;
-};
-
-PP_BrowserFont_Trusted_Weight WeightToBrowserFontTrustedWeight(int weight) {
- COMPILE_ASSERT(PP_BROWSERFONT_TRUSTED_WEIGHT_100 == 0,
- PP_BrowserFont_Trusted_Weight_Min);
- COMPILE_ASSERT(PP_BROWSERFONT_TRUSTED_WEIGHT_900 == 8,
- PP_BrowserFont_Trusted_Weight_Max);
- const int kMinimumWeight = 100;
- const int kMaximumWeight = 900;
- int normalized_weight =
- std::min(std::max(weight, kMinimumWeight), kMaximumWeight);
- normalized_weight = (normalized_weight / 100) - 1;
- return static_cast<PP_BrowserFont_Trusted_Weight>(normalized_weight);
-}
-
-// This list is for CPWL_FontMap::GetDefaultFontByCharset().
-// We pretend to have these font natively and let the browser (or underlying
-// fontconfig) to pick the proper font on the system.
-void EnumFonts(struct _FPDF_SYSFONTINFO* sysfontinfo, void* mapper) {
- FPDF_AddInstalledFont(mapper, "Arial", FXFONT_DEFAULT_CHARSET);
-
- int i = 0;
- while (CPWL_FontMap::defaultTTFMap[i].charset != -1) {
- FPDF_AddInstalledFont(mapper,
- CPWL_FontMap::defaultTTFMap[i].fontname,
- CPWL_FontMap::defaultTTFMap[i].charset);
- ++i;
- }
-}
-
-const PDFFontSubstitution PDFFontSubstitutions[] = {
- {"Courier", "Courier New", false, false},
- {"Courier-Bold", "Courier New", true, false},
- {"Courier-BoldOblique", "Courier New", true, true},
- {"Courier-Oblique", "Courier New", false, true},
- {"Helvetica", "Arial", false, false},
- {"Helvetica-Bold", "Arial", true, false},
- {"Helvetica-BoldOblique", "Arial", true, true},
- {"Helvetica-Oblique", "Arial", false, true},
- {"Times-Roman", "Times New Roman", false, false},
- {"Times-Bold", "Times New Roman", true, false},
- {"Times-BoldItalic", "Times New Roman", true, true},
- {"Times-Italic", "Times New Roman", false, true},
-
- // MS P?(Mincho|Gothic) are the most notable fonts in Japanese PDF files
- // without embedding the glyphs. Sometimes the font names are encoded
- // in Japanese Windows's locale (CP932/Shift_JIS) without space.
- // Most Linux systems don't have the exact font, but for outsourcing
- // fontconfig to find substitutable font in the system, we pass ASCII
- // font names to it.
- {"MS-PGothic", "MS PGothic", false, false},
- {"MS-Gothic", "MS Gothic", false, false},
- {"MS-PMincho", "MS PMincho", false, false},
- {"MS-Mincho", "MS Mincho", false, false},
- // MS PGothic in Shift_JIS encoding.
- {"\x82\x6C\x82\x72\x82\x6F\x83\x53\x83\x56\x83\x62\x83\x4E",
- "MS PGothic", false, false},
- // MS Gothic in Shift_JIS encoding.
- {"\x82\x6C\x82\x72\x83\x53\x83\x56\x83\x62\x83\x4E",
- "MS Gothic", false, false},
- // MS PMincho in Shift_JIS encoding.
- {"\x82\x6C\x82\x72\x82\x6F\x96\xBE\x92\xA9",
- "MS PMincho", false, false},
- // MS Mincho in Shift_JIS encoding.
- {"\x82\x6C\x82\x72\x96\xBE\x92\xA9",
- "MS Mincho", false, false},
-};
-
-void* MapFont(struct _FPDF_SYSFONTINFO*, int weight, int italic,
- int charset, int pitch_family, const char* face, int* exact) {
- // Do not attempt to map fonts if pepper is not initialized (for privet local
- // printing).
- // TODO(noamsml): Real font substitution (http://crbug.com/391978)
- if (!pp::Module::Get())
- return NULL;
-
- pp::BrowserFontDescription description;
-
- // Pretend the system does not have the Symbol font to force a fallback to
- // the built in Symbol font in CFX_FontMapper::FindSubstFont().
- if (strcmp(face, "Symbol") == 0)
- return NULL;
-
- if (pitch_family & FXFONT_FF_FIXEDPITCH) {
- description.set_family(PP_BROWSERFONT_TRUSTED_FAMILY_MONOSPACE);
- } else if (pitch_family & FXFONT_FF_ROMAN) {
- description.set_family(PP_BROWSERFONT_TRUSTED_FAMILY_SERIF);
- }
-
- // Map from the standard PDF fonts to TrueType font names.
- size_t i;
- for (i = 0; i < arraysize(PDFFontSubstitutions); ++i) {
- if (strcmp(face, PDFFontSubstitutions[i].pdf_name) == 0) {
- description.set_face(PDFFontSubstitutions[i].face);
- if (PDFFontSubstitutions[i].bold)
- description.set_weight(PP_BROWSERFONT_TRUSTED_WEIGHT_BOLD);
- if (PDFFontSubstitutions[i].italic)
- description.set_italic(true);
- break;
- }
- }
-
- if (i == arraysize(PDFFontSubstitutions)) {
- // TODO(kochi): Pass the face in UTF-8. If face is not encoded in UTF-8,
- // convert to UTF-8 before passing.
- description.set_face(face);
-
- description.set_weight(WeightToBrowserFontTrustedWeight(weight));
- description.set_italic(italic > 0);
- }
-
- if (!pp::PDF::IsAvailable()) {
- NOTREACHED();
- return NULL;
- }
-
- PP_Resource font_resource = pp::PDF::GetFontFileWithFallback(
- pp::InstanceHandle(g_last_instance_id),
- &description.pp_font_description(),
- static_cast<PP_PrivateFontCharset>(charset));
- long res_id = font_resource;
- return reinterpret_cast<void*>(res_id);
-}
-
-unsigned long GetFontData(struct _FPDF_SYSFONTINFO*, void* font_id,
- unsigned int table, unsigned char* buffer,
- unsigned long buf_size) {
- if (!pp::PDF::IsAvailable()) {
- NOTREACHED();
- return 0;
- }
-
- uint32_t size = buf_size;
- long res_id = reinterpret_cast<long>(font_id);
- if (!pp::PDF::GetFontTableForPrivateFontFile(res_id, table, buffer, &size))
- return 0;
- return size;
-}
-
-void DeleteFont(struct _FPDF_SYSFONTINFO*, void* font_id) {
- long res_id = reinterpret_cast<long>(font_id);
- pp::Module::Get()->core()->ReleaseResource(res_id);
-}
-
-FPDF_SYSFONTINFO g_font_info = {
- 1,
- 0,
- EnumFonts,
- MapFont,
- 0,
- GetFontData,
- 0,
- 0,
- DeleteFont
-};
-#endif // defined(OS_LINUX)
-
-void OOM_Handler(_OOM_INFO*) {
- // Kill the process. This is important for security, since the code doesn't
- // NULL-check many memory allocations. If a malloc fails, returns NULL, and
- // the buffer is then used, it provides a handy mapping of memory starting at
- // address 0 for an attacker to utilize.
- abort();
-}
-
-OOM_INFO g_oom_info = {
- 1,
- OOM_Handler
-};
-
-PDFiumEngine* g_engine_for_unsupported;
-
-void Unsupported_Handler(UNSUPPORT_INFO*, int type) {
- if (!g_engine_for_unsupported) {
- NOTREACHED();
- return;
- }
-
- g_engine_for_unsupported->UnsupportedFeature(type);
-}
-
-UNSUPPORT_INFO g_unsuppored_info = {
- 1,
- Unsupported_Handler
-};
-
-// Set the destination page size and content area in points based on source
-// page rotation and orientation.
-//
-// |rotated| True if source page is rotated 90 degree or 270 degree.
-// |is_src_page_landscape| is true if the source page orientation is landscape.
-// |page_size| has the actual destination page size in points.
-// |content_rect| has the actual destination page printable area values in
-// points.
-void SetPageSizeAndContentRect(bool rotated,
- bool is_src_page_landscape,
- pp::Size* page_size,
- pp::Rect* content_rect) {
- bool is_dst_page_landscape = page_size->width() > page_size->height();
- bool page_orientation_mismatched = is_src_page_landscape !=
- is_dst_page_landscape;
- bool rotate_dst_page = rotated ^ page_orientation_mismatched;
- if (rotate_dst_page) {
- page_size->SetSize(page_size->height(), page_size->width());
- content_rect->SetRect(content_rect->y(), content_rect->x(),
- content_rect->height(), content_rect->width());
- }
-}
-
-// Calculate the scale factor between |content_rect| and a page of size
-// |src_width| x |src_height|.
-//
-// |scale_to_fit| is true, if we need to calculate the scale factor.
-// |content_rect| specifies the printable area of the destination page, with
-// origin at left-bottom. Values are in points.
-// |src_width| specifies the source page width in points.
-// |src_height| specifies the source page height in points.
-// |rotated| True if source page is rotated 90 degree or 270 degree.
-double CalculateScaleFactor(bool scale_to_fit,
- const pp::Rect& content_rect,
- double src_width, double src_height, bool rotated) {
- if (!scale_to_fit || src_width == 0 || src_height == 0)
- return 1.0;
-
- double actual_source_page_width = rotated ? src_height : src_width;
- double actual_source_page_height = rotated ? src_width : src_height;
- double ratio_x = static_cast<double>(content_rect.width()) /
- actual_source_page_width;
- double ratio_y = static_cast<double>(content_rect.height()) /
- actual_source_page_height;
- return std::min(ratio_x, ratio_y);
-}
-
-// Compute source clip box boundaries based on the crop box / media box of
-// source page and scale factor.
-//
-// |page| Handle to the source page. Returned by FPDF_LoadPage function.
-// |scale_factor| specifies the scale factor that should be applied to source
-// clip box boundaries.
-// |rotated| True if source page is rotated 90 degree or 270 degree.
-// |clip_box| out param to hold the computed source clip box values.
-void CalculateClipBoxBoundary(FPDF_PAGE page, double scale_factor, bool rotated,
- ClipBox* clip_box) {
- if (!FPDFPage_GetCropBox(page, &clip_box->left, &clip_box->bottom,
- &clip_box->right, &clip_box->top)) {
- if (!FPDFPage_GetMediaBox(page, &clip_box->left, &clip_box->bottom,
- &clip_box->right, &clip_box->top)) {
- // Make the default size to be letter size (8.5" X 11"). We are just
- // following the PDFium way of handling these corner cases. PDFium always
- // consider US-Letter as the default page size.
- float paper_width = 612;
- float paper_height = 792;
- clip_box->left = 0;
- clip_box->bottom = 0;
- clip_box->right = rotated ? paper_height : paper_width;
- clip_box->top = rotated ? paper_width : paper_height;
- }
- }
- clip_box->left *= scale_factor;
- clip_box->right *= scale_factor;
- clip_box->bottom *= scale_factor;
- clip_box->top *= scale_factor;
-}
-
-// Calculate the clip box translation offset for a page that does need to be
-// scaled. All parameters are in points.
-//
-// |content_rect| specifies the printable area of the destination page, with
-// origin at left-bottom.
-// |source_clip_box| specifies the source clip box positions, relative to
-// origin at left-bottom.
-// |offset_x| and |offset_y| will contain the final translation offsets for the
-// source clip box, relative to origin at left-bottom.
-void CalculateScaledClipBoxOffset(const pp::Rect& content_rect,
- const ClipBox& source_clip_box,
- double* offset_x, double* offset_y) {
- const float clip_box_width = source_clip_box.right - source_clip_box.left;
- const float clip_box_height = source_clip_box.top - source_clip_box.bottom;
-
- // Center the intended clip region to real clip region.
- *offset_x = (content_rect.width() - clip_box_width) / 2 + content_rect.x() -
- source_clip_box.left;
- *offset_y = (content_rect.height() - clip_box_height) / 2 + content_rect.y() -
- source_clip_box.bottom;
-}
-
-// Calculate the clip box offset for a page that does not need to be scaled.
-// All parameters are in points.
-//
-// |content_rect| specifies the printable area of the destination page, with
-// origin at left-bottom.
-// |rotation| specifies the source page rotation values which are N / 90
-// degrees.
-// |page_width| specifies the screen destination page width.
-// |page_height| specifies the screen destination page height.
-// |source_clip_box| specifies the source clip box positions, relative to origin
-// at left-bottom.
-// |offset_x| and |offset_y| will contain the final translation offsets for the
-// source clip box, relative to origin at left-bottom.
-void CalculateNonScaledClipBoxOffset(const pp::Rect& content_rect, int rotation,
- int page_width, int page_height,
- const ClipBox& source_clip_box,
- double* offset_x, double* offset_y) {
- // Align the intended clip region to left-top corner of real clip region.
- switch (rotation) {
- case 0:
- *offset_x = -1 * source_clip_box.left;
- *offset_y = page_height - source_clip_box.top;
- break;
- case 1:
- *offset_x = 0;
- *offset_y = -1 * source_clip_box.bottom;
- break;
- case 2:
- *offset_x = page_width - source_clip_box.right;
- *offset_y = 0;
- break;
- case 3:
- *offset_x = page_height - source_clip_box.right;
- *offset_y = page_width - source_clip_box.top;
- break;
- default:
- NOTREACHED();
- break;
- }
-}
-
-// This formats a string with special 0xfffe end-of-line hyphens the same way
-// as Adobe Reader. When a hyphen is encountered, the next non-CR/LF whitespace
-// becomes CR+LF and the hyphen is erased. If there is no whitespace between
-// two hyphens, the latter hyphen is erased and ignored.
-void FormatStringWithHyphens(base::string16* text) {
- // First pass marks all the hyphen positions.
- struct HyphenPosition {
- HyphenPosition() : position(0), next_whitespace_position(0) {}
- size_t position;
- size_t next_whitespace_position; // 0 for none
- };
- std::vector<HyphenPosition> hyphen_positions;
- HyphenPosition current_hyphen_position;
- bool current_hyphen_position_is_valid = false;
- const base::char16 kPdfiumHyphenEOL = 0xfffe;
-
- for (size_t i = 0; i < text->size(); ++i) {
- const base::char16& current_char = (*text)[i];
- if (current_char == kPdfiumHyphenEOL) {
- if (current_hyphen_position_is_valid)
- hyphen_positions.push_back(current_hyphen_position);
- current_hyphen_position = HyphenPosition();
- current_hyphen_position.position = i;
- current_hyphen_position_is_valid = true;
- } else if (IsWhitespace(current_char)) {
- if (current_hyphen_position_is_valid) {
- if (current_char != L'\r' && current_char != L'\n')
- current_hyphen_position.next_whitespace_position = i;
- hyphen_positions.push_back(current_hyphen_position);
- current_hyphen_position_is_valid = false;
- }
- }
- }
- if (current_hyphen_position_is_valid)
- hyphen_positions.push_back(current_hyphen_position);
-
- // With all the hyphen positions, do the search and replace.
- while (!hyphen_positions.empty()) {
- static const base::char16 kCr[] = {L'\r', L'\0'};
- const HyphenPosition& position = hyphen_positions.back();
- if (position.next_whitespace_position != 0) {
- (*text)[position.next_whitespace_position] = L'\n';
- text->insert(position.next_whitespace_position, kCr);
- }
- text->erase(position.position, 1);
- hyphen_positions.pop_back();
- }
-
- // Adobe Reader also get rid of trailing spaces right before a CRLF.
- static const base::char16 kSpaceCrCn[] = {L' ', L'\r', L'\n', L'\0'};
- static const base::char16 kCrCn[] = {L'\r', L'\n', L'\0'};
- ReplaceSubstringsAfterOffset(text, 0, kSpaceCrCn, kCrCn);
-}
-
-// Replace CR/LF with just LF on POSIX.
-void FormatStringForOS(base::string16* text) {
-#if defined(OS_POSIX)
- static const base::char16 kCr[] = {L'\r', L'\0'};
- static const base::char16 kBlank[] = {L'\0'};
- base::ReplaceChars(*text, kCr, kBlank, text);
-#elif defined(OS_WIN)
- // Do nothing
-#else
- NOTIMPLEMENTED();
-#endif
-}
-
-} // namespace
-
-bool InitializeSDK(void* data) {
- FPDF_InitLibrary(data);
-
-#if defined(OS_LINUX)
- // Font loading doesn't work in the renderer sandbox in Linux.
- FPDF_SetSystemFontInfo(&g_font_info);
-#endif
-
- FSDK_SetOOMHandler(&g_oom_info);
- FSDK_SetUnSpObjProcessHandler(&g_unsuppored_info);
-
- return true;
-}
-
-void ShutdownSDK() {
- FPDF_DestroyLibrary();
-}
-
-PDFEngine* PDFEngine::Create(PDFEngine::Client* client) {
- return new PDFiumEngine(client);
-}
-
-PDFiumEngine::PDFiumEngine(PDFEngine::Client* client)
- : client_(client),
- current_zoom_(1.0),
- current_rotation_(0),
- doc_loader_(this),
- password_tries_remaining_(0),
- doc_(NULL),
- form_(NULL),
- defer_page_unload_(false),
- selecting_(false),
- mouse_down_state_(PDFiumPage::NONSELECTABLE_AREA,
- PDFiumPage::LinkTarget()),
- next_page_to_search_(-1),
- last_page_to_search_(-1),
- last_character_index_to_search_(-1),
- current_find_index_(-1),
- resume_find_index_(-1),
- permissions_(0),
- fpdf_availability_(NULL),
- next_timer_id_(0),
- last_page_mouse_down_(-1),
- first_visible_page_(-1),
- most_visible_page_(-1),
- called_do_document_action_(false),
- render_grayscale_(false),
- progressive_paint_timeout_(0),
- getting_password_(false) {
- find_factory_.Initialize(this);
- password_factory_.Initialize(this);
-
- file_access_.m_FileLen = 0;
- file_access_.m_GetBlock = &GetBlock;
- file_access_.m_Param = &doc_loader_;
-
- file_availability_.version = 1;
- file_availability_.IsDataAvail = &IsDataAvail;
- file_availability_.loader = &doc_loader_;
-
- download_hints_.version = 1;
- download_hints_.AddSegment = &AddSegment;
- download_hints_.loader = &doc_loader_;
-
- // Initialize FPDF_FORMFILLINFO member variables. Deriving from this struct
- // allows the static callbacks to be able to cast the FPDF_FORMFILLINFO in
- // callbacks to ourself instead of maintaining a map of them to
- // PDFiumEngine.
- FPDF_FORMFILLINFO::version = 1;
- FPDF_FORMFILLINFO::m_pJsPlatform = this;
- FPDF_FORMFILLINFO::Release = NULL;
- FPDF_FORMFILLINFO::FFI_Invalidate = Form_Invalidate;
- FPDF_FORMFILLINFO::FFI_OutputSelectedRect = Form_OutputSelectedRect;
- FPDF_FORMFILLINFO::FFI_SetCursor = Form_SetCursor;
- FPDF_FORMFILLINFO::FFI_SetTimer = Form_SetTimer;
- FPDF_FORMFILLINFO::FFI_KillTimer = Form_KillTimer;
- FPDF_FORMFILLINFO::FFI_GetLocalTime = Form_GetLocalTime;
- FPDF_FORMFILLINFO::FFI_OnChange = Form_OnChange;
- FPDF_FORMFILLINFO::FFI_GetPage = Form_GetPage;
- FPDF_FORMFILLINFO::FFI_GetCurrentPage = Form_GetCurrentPage;
- FPDF_FORMFILLINFO::FFI_GetRotation = Form_GetRotation;
- FPDF_FORMFILLINFO::FFI_ExecuteNamedAction = Form_ExecuteNamedAction;
- FPDF_FORMFILLINFO::FFI_SetTextFieldFocus = Form_SetTextFieldFocus;
- FPDF_FORMFILLINFO::FFI_DoURIAction = Form_DoURIAction;
- FPDF_FORMFILLINFO::FFI_DoGoToAction = Form_DoGoToAction;
-#ifdef _TEST_XFA
- FPDF_FORMFILLINFO::FFI_EmailTo = Form_EmailTo;
- FPDF_FORMFILLINFO::FFI_DisplayCaret = Form_DisplayCaret;
- //FPDF_FORMFILLINFO::FFI_GetCurDocumentIndex = Form_GetCurDocumentIndex;
- //FPDF_FORMFILLINFO::FFI_GetDocumentCount = Form_GetDocumentCount;
- FPDF_FORMFILLINFO::FFI_SetCurrentPage = Form_SetCurrentPage;
- FPDF_FORMFILLINFO::FFI_GetCurrentPageIndex = Form_GetCurrentPageIndex;
- FPDF_FORMFILLINFO::FFI_GetPageViewRect = Form_GetPageViewRect;
- FPDF_FORMFILLINFO::FFI_GetPlatform = Form_GetPlatform;
- FPDF_FORMFILLINFO::FFI_PopupMenu = Form_PopupMenu;
- FPDF_FORMFILLINFO::FFI_PostRequestURL = Form_PostRequestURL;
- FPDF_FORMFILLINFO::FFI_PutRequestURL = Form_PutRequestURL;
-// FPDF_FORMFILLINFO::FFI_ShowFileDialog = Form_ShowFileDialog;
- FPDF_FORMFILLINFO::FFI_UploadTo = Form_UploadTo;
- FPDF_FORMFILLINFO::FFI_DownloadFromURL = Form_DownloadFromURL;
- // FPDF_FORMFILLINFO::FFI_GetFilePath = MyForm_GetFilePath;
- FPDF_FORMFILLINFO::FFI_OpenFile = Form_OpenFile;
- FPDF_FORMFILLINFO::FFI_GotoURL = Form_GotoURL;
- FPDF_FORMFILLINFO::FFI_GetLanguage = Form_GetLanguage;
-#endif // _TEST_XFA
- IPDF_JSPLATFORM::version = 1;
- IPDF_JSPLATFORM::app_alert = Form_Alert;
- IPDF_JSPLATFORM::app_beep = Form_Beep;
- IPDF_JSPLATFORM::app_response = Form_Response;
- IPDF_JSPLATFORM::Doc_getFilePath = Form_GetFilePath;
- IPDF_JSPLATFORM::Doc_mail = Form_Mail;
- IPDF_JSPLATFORM::Doc_print = Form_Print;
- IPDF_JSPLATFORM::Doc_submitForm = Form_SubmitForm;
- IPDF_JSPLATFORM::Doc_gotoPage = Form_GotoPage;
- IPDF_JSPLATFORM::Field_browse = Form_Browse;
-
- IFSDK_PAUSE::version = 1;
- IFSDK_PAUSE::user = NULL;
- IFSDK_PAUSE::NeedToPauseNow = Pause_NeedToPauseNow;
-}
-
-PDFiumEngine::~PDFiumEngine() {
- for (size_t i = 0; i < pages_.size(); ++i)
- pages_[i]->Unload();
-
- if (doc_) {
- if (form_) {
- FORM_DoDocumentAAction(form_, FPDFDOC_AACTION_WC);
- }
- FPDF_CloseDocument(doc_);
- if (form_) {
- FPDFDOC_ExitFormFillEnviroument(form_);
- }
- }
-
- if (fpdf_availability_)
- FPDFAvail_Destroy(fpdf_availability_);
-
- STLDeleteElements(&pages_);
-}
-
-#ifdef _TEST_XFA
-
-typedef struct _FPDF_FILE {
- FPDF_FILEHANDLER fileHandler;
- FILE* file;
-}FPDF_FILE;
-
-
-void Sample_Release(FPDF_LPVOID clientData) {
- if (!clientData) return;
-
- fclose(((FPDF_FILE*)clientData)->file);
- delete ((FPDF_FILE*)clientData);
-}
-
-FPDF_DWORD Sample_GetSize(FPDF_LPVOID clientData) {
- if (!clientData) return 0;
-
- long curPos = ftell(((FPDF_FILE*)clientData)->file);
- fseek(((FPDF_FILE*)clientData)->file, 0, SEEK_END);
- long size = ftell(((FPDF_FILE*)clientData)->file);
- fseek(((FPDF_FILE*)clientData)->file, curPos, SEEK_SET);
-
- return (FPDF_DWORD)size;
-}
-
-FPDF_RESULT Sample_ReadBlock(FPDF_LPVOID clientData, FPDF_DWORD offset, FPDF_LPVOID buffer, FPDF_DWORD size) {
- if (!clientData) return -1;
-
- fseek(((FPDF_FILE*)clientData)->file, (long)offset, SEEK_SET);
- size_t readSize = fread(buffer, 1, size, ((FPDF_FILE*)clientData)->file);
- return readSize == size ? 0 : -1;
-}
-
-FPDF_RESULT Sample_WriteBlock(FPDF_LPVOID clientData, FPDF_DWORD offset, FPDF_LPCVOID buffer, FPDF_DWORD size) {
- if (!clientData) return -1;
-
- fseek(((FPDF_FILE*)clientData)->file, (long)offset, SEEK_SET);
- //Write data
- size_t writeSize = fwrite(buffer, 1, size, ((FPDF_FILE*)clientData)->file);
- return writeSize == size ? 0 : -1;
-}
-
-FPDF_RESULT Sample_Flush(FPDF_LPVOID clientData) {
- if (!clientData) return -1;
-
- //Flush file
- fflush(((FPDF_FILE*)clientData)->file);
-
- return 0;
-}
-
-FPDF_RESULT Sample_Truncate(FPDF_LPVOID clientData, FPDF_DWORD size) {
- return 0;
-}
-
-
-void PDFiumEngine::Form_EmailTo(FPDF_FORMFILLINFO* pThis,
- FPDF_FILEHANDLER* fileHandler,
- FPDF_WIDESTRING to,
- FPDF_WIDESTRING subject,
- FPDF_WIDESTRING cc,
- FPDF_WIDESTRING bcc,
- FPDF_WIDESTRING message) {
- std::string to_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(to));
- std::string subject_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(subject));
- std::string cc_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(cc));
- std::string bcc_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(bcc));
- std::string message_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(message));
-
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
- engine->client_->Email(to_str, cc_str, bcc_str, subject_str, message_str);
-}
-
-void PDFiumEngine::Form_DisplayCaret(FPDF_FORMFILLINFO* pThis,
- FPDF_PAGE page, FPDF_BOOL bVisible,
- double left, double top, double right, double bottom) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
- engine->client_->UpdateCursor(PP_CURSORTYPE_IBEAM);
- std::vector<pp::Rect> tickmarks;
- pp::Rect rect(left, top, right, bottom);
- tickmarks.push_back(rect);
- engine->client_->UpdateTickMarks(tickmarks);
-}
-
-//int PDFiumEngine::Form_GetCurDocumentIndex(FPDF_FORMFILLINFO* pThis) {
-// PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
-// engine->client_->RunJSCmd("alert(\"GetCurDocumentIndex\")");
-// return 0;
-//}
-//
-//int PDFiumEngine::Form_GetDocumentCount(FPDF_FORMFILLINFO* pThis) {
-// PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
-// engine->client_->RunJSCmd("alert(\"GetCurDocumentCount\")");
-// return 0;
-//}
-
-void PDFiumEngine::Form_SetCurrentPage(FPDF_FORMFILLINFO* pThis, FPDF_DOCUMENT document, int iCurPage) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
- pp::Rect pageViewRect = engine->GetPageContentsRect(iCurPage);
- engine->ScrolledToYPosition(pageViewRect.height());
- pp::Point pos(1, pageViewRect.height());
- engine->SetScrollPosition(pos);
-}
-
-int PDFiumEngine::Form_GetCurrentPageIndex(FPDF_FORMFILLINFO* pThis, FPDF_DOCUMENT document) {
- //int pageCount = FPDF_GetPageCount(document);
- int pageIndex = -1;
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
- pageIndex = engine->GetMostVisiblePage();
- return pageIndex;
-}
-
-void PDFiumEngine::Form_GetPageViewRect(FPDF_FORMFILLINFO* pThis,
- FPDF_PAGE page,
- double* left, double* top, double* right, double* bottom) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
- int page_index = engine->GetMostVisiblePage();
- pp::Rect pageViewRect = engine->GetPageContentsRect(page_index);
-
- *left = pageViewRect.x();
- *right = pageViewRect.width() + pageViewRect.x();
- *top = pageViewRect.y();
- *bottom = pageViewRect.height();
-
- std::string javascript = "alert(\"PageViewRect:"
- + base::DoubleToString(*left) + ","
- + base::DoubleToString(*right) + ","
- + base::DoubleToString(*top) + ","
- + base::DoubleToString(*bottom) + ","
- + "\")";
-
-}
-
-int PDFiumEngine::Form_GetPlatform(FPDF_FORMFILLINFO* pThis,
- void* platform,
- int length) {
- int platform_flag = -1;
-#if defined(WIN32)
- platform_flag = 0;
-#elif defined(__linux__)
- platform_flag = 1;
-#else
- platform_flag = 2;
-#endif
- std::string javascript = "alert(\"Platform:"
- + base::DoubleToString(platform_flag)
- + "\")";
- //platform = new char[3];
- //char tem[10] = "WIN";
- //strncpy((char*)platform, tem, 3);
-
- return 3;
-}
-
-FPDF_BOOL PDFiumEngine::Form_PopupMenu(FPDF_FORMFILLINFO* pThis,
- FPDF_PAGE page,
- FPDF_WIDGET hWidget,
- int menuFlag, float x, float y) {
- return false;
-}
-
-FPDF_BOOL PDFiumEngine::Form_PostRequestURL(FPDF_FORMFILLINFO* pThis, FPDF_WIDESTRING wsURL,
- FPDF_WIDESTRING wsData, FPDF_WIDESTRING wsContentType,
- FPDF_WIDESTRING wsEncode, FPDF_WIDESTRING wsHeader, FPDF_BSTR* respone) {
- std::string url_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsURL));
- std::string data_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsData));
- std::string content_type_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsContentType));
- std::string encode_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsEncode));
- std::string header_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsHeader));
-
- std::string javascript = "alert(\"Post:"
- + url_str + "," + data_str + "," + content_type_str + ","
- + encode_str + "," + header_str
- + "\")";
- return true;
-}
-
-FPDF_BOOL PDFiumEngine::Form_PutRequestURL(FPDF_FORMFILLINFO* pThis,
- FPDF_WIDESTRING wsURL, FPDF_WIDESTRING wsData, FPDF_WIDESTRING wsEncode) {
- std::string url_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsURL));
- std::string data_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsData));
- std::string encode_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsEncode));
-
- std::string javascript = "alert(\"Put:"
- + url_str + "," + data_str + "," + encode_str
- + "\")";
-
- return true;
-}
-
-//FPDF_BOOL PDFiumEngine::Form_ShowFileDialog(FPDF_FORMFILLINFO* pThis, FPDF_WIDESTRING wsTitle, FPDF_WIDESTRING wsFilter, FPDF_BOOL isOpen, FPDF_STRINGHANDLE pathArr) {
-// int tem = 1;
-// tem++;
-// return false;
-//}
-
-void PDFiumEngine::Form_UploadTo(FPDF_FORMFILLINFO* pThis, FPDF_FILEHANDLER* fileHandler, int fileFlag, FPDF_WIDESTRING uploadTo) {
- std::string to_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(uploadTo));
-
-}
-
-FPDF_LPFILEHANDLER PDFiumEngine::Form_DownloadFromURL(FPDF_FORMFILLINFO* pThis, FPDF_WIDESTRING URL) {
- std::string url_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(URL));
-
-
- // Get URL data...
- FILE* file = fopen(FXQA_TESTFILE("downloadtest.tem"), "w");
- FPDF_FILE* pFileHander = new FPDF_FILE;
- pFileHander->file = file;
- pFileHander->fileHandler.clientData = pFileHander;
- pFileHander->fileHandler.Flush = Sample_Flush;
- pFileHander->fileHandler.GetSize = Sample_GetSize;
- pFileHander->fileHandler.ReadBlock = Sample_ReadBlock;
- pFileHander->fileHandler.Release = Sample_Release;
- pFileHander->fileHandler.Truncate = Sample_Truncate;
- pFileHander->fileHandler.WriteBlock = Sample_WriteBlock;
-
- return &pFileHander->fileHandler;
-}
-
-//FPDF_BOOL PDFiumEngine::MyForm_GetFilePath(FPDF_FORMFILLINFO* pThis, FPDF_FILEHANDLER* pFileHandler, void* filePath, int length) {
-// //std::string filePath = engine->client_->FileOpen(fileFlag);
-// if (filePath == NULL) {
-// std::string javascript = "alert(\"GetFilePath:NULL\")";
-// PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
-// engine->client_->RunJSCmd(javascript);
-// return false;
-// }
-// std::string filePath_str = (char*)filePath;
-//
-// std::string javascript = "alert(\"GetFilePath:" + filePath_str + "\")";
-// PDFiumEngine* engine = static_cast<PDFiumEngine*>(pThis);
-// engine->client_->RunJSCmd(javascript);
-//
-// FILE* file = fopen(FXQA_TESTFILE("tem.xdp"), "w");
-// FPDF_FILE* pFileHander = new FPDF_FILE;
-// pFileHander->file = file;
-// pFileHander->fileHandler.clientData = pFileHander;
-// pFileHander->fileHandler.Flush = Sample_Flush;
-// pFileHander->fileHandler.GetSize = Sample_GetSize;
-// pFileHander->fileHandler.ReadBlock = Sample_ReadBlock;
-// pFileHander->fileHandler.Release = Sample_Release;
-// pFileHander->fileHandler.Truncate = Sample_Truncate;
-// pFileHander->fileHandler.WriteBlock = Sample_WriteBlock;
-//
-// pFileHandler = &pFileHander->fileHandler;
-//
-// return true;
-//}
-
-FPDF_FILEHANDLER* PDFiumEngine::Form_OpenFile(FPDF_FORMFILLINFO* pThis, int fileFlag, FPDF_WIDESTRING wsURL, const char* mode) {
- std::string url_str = "NULL";
- if (wsURL == NULL) {
- url_str = "NULL";
- }
- else {
- url_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsURL));
- }
- if (strncmp(mode, "wb", 2) == 0) {
-
- FILE* file = fopen(FXQA_TESTFILE("tem.txt"), mode);
- FPDF_FILE* pFileHander = new FPDF_FILE;
- pFileHander->file = file;
- pFileHander->fileHandler.clientData = pFileHander;
- pFileHander->fileHandler.Flush = Sample_Flush;
- pFileHander->fileHandler.GetSize = Sample_GetSize;
- pFileHander->fileHandler.ReadBlock = Sample_ReadBlock;
- pFileHander->fileHandler.Release = Sample_Release;
- pFileHander->fileHandler.Truncate = Sample_Truncate;
- pFileHander->fileHandler.WriteBlock = Sample_WriteBlock;
- return &pFileHander->fileHandler;
- }
- else {
- url_str = base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsURL));
- }
- return NULL;
-}
-
-
-void PDFiumEngine::Form_GotoURL(FPDF_FORMFILLINFO* pThis, FPDF_DOCUMENT document, FPDF_WIDESTRING wsURL) {
- std::string url_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(wsURL));
-}
-
-int PDFiumEngine::Form_GetLanguage(FPDF_FORMFILLINFO* pThis, void* language, int length) {
- return 0;
-}
-
-#endif // _TEST_XFA
-
-int PDFiumEngine::GetBlock(void* param, unsigned long position,
- unsigned char* buffer, unsigned long size) {
- DocumentLoader* loader = static_cast<DocumentLoader*>(param);
- return loader->GetBlock(position, size, buffer);
-}
-
-bool PDFiumEngine::IsDataAvail(FX_FILEAVAIL* param,
- size_t offset, size_t size) {
- PDFiumEngine::FileAvail* file_avail =
- static_cast<PDFiumEngine::FileAvail*>(param);
- return file_avail->loader->IsDataAvailable(offset, size);
-}
-
-void PDFiumEngine::AddSegment(FX_DOWNLOADHINTS* param,
- size_t offset, size_t size) {
- PDFiumEngine::DownloadHints* download_hints =
- static_cast<PDFiumEngine::DownloadHints*>(param);
- return download_hints->loader->RequestData(offset, size);
-}
-
-bool PDFiumEngine::New(const char* url) {
- url_ = url;
- headers_ = std::string();
- return true;
-}
-
-bool PDFiumEngine::New(const char* url,
- const char* headers) {
- url_ = url;
- if (!headers)
- headers_ = std::string();
- else
- headers_ = headers;
- return true;
-}
-
-void PDFiumEngine::PageOffsetUpdated(const pp::Point& page_offset) {
- page_offset_ = page_offset;
-}
-
-void PDFiumEngine::PluginSizeUpdated(const pp::Size& size) {
- CancelPaints();
-
- plugin_size_ = size;
- CalculateVisiblePages();
-}
-
-void PDFiumEngine::ScrolledToXPosition(int position) {
- CancelPaints();
-
- int old_x = position_.x();
- position_.set_x(position);
- CalculateVisiblePages();
- client_->Scroll(pp::Point(old_x - position, 0));
-}
-
-void PDFiumEngine::ScrolledToYPosition(int position) {
- CancelPaints();
-
- int old_y = position_.y();
- position_.set_y(position);
- CalculateVisiblePages();
- client_->Scroll(pp::Point(0, old_y - position));
-}
-
-void PDFiumEngine::PrePaint() {
- for (size_t i = 0; i < progressive_paints_.size(); ++i)
- progressive_paints_[i].painted_ = false;
-}
-
-void PDFiumEngine::Paint(const pp::Rect& rect,
- pp::ImageData* image_data,
- std::vector<pp::Rect>* ready,
- std::vector<pp::Rect>* pending) {
- pp::Rect leftover = rect;
- for (size_t i = 0; i < visible_pages_.size(); ++i) {
- int index = visible_pages_[i];
- pp::Rect page_rect = pages_[index]->rect();
- // Convert the current page's rectangle to screen rectangle. We do this
- // instead of the reverse (converting the dirty rectangle from screen to
- // page coordinates) because then we'd have to convert back to screen
- // coordinates, and the rounding errors sometime leave pixels dirty or even
- // move the text up or down a pixel when zoomed.
- pp::Rect page_rect_in_screen = GetPageScreenRect(index);
- pp::Rect dirty_in_screen = page_rect_in_screen.Intersect(leftover);
- if (dirty_in_screen.IsEmpty())
- continue;
-
- leftover = leftover.Subtract(dirty_in_screen);
-
- if (pages_[index]->available()) {
- int progressive = GetProgressiveIndex(index);
- if (progressive != -1 &&
- progressive_paints_[progressive].rect != dirty_in_screen) {
- // The PDFium code can only handle one progressive paint at a time, so
- // queue this up. Previously we used to merge the rects when this
- // happened, but it made scrolling up on complex PDFs very slow since
- // there would be a damaged rect at the top (from scroll) and at the
- // bottom (from toolbar).
- pending->push_back(dirty_in_screen);
- continue;
- }
-
- if (progressive == -1) {
- progressive = StartPaint(index, dirty_in_screen);
- progressive_paint_timeout_ = kMaxInitialProgressivePaintTimeMs;
- } else {
- progressive_paint_timeout_ = kMaxProgressivePaintTimeMs;
- }
-
- progressive_paints_[progressive].painted_ = true;
- if (ContinuePaint(progressive, image_data)) {
- FinishPaint(progressive, image_data);
- ready->push_back(dirty_in_screen);
- } else {
- pending->push_back(dirty_in_screen);
- }
- } else {
- PaintUnavailablePage(index, dirty_in_screen, image_data);
- ready->push_back(dirty_in_screen);
- }
- }
-}
-
-void PDFiumEngine::PostPaint() {
- for (size_t i = 0; i < progressive_paints_.size(); ++i) {
- if (progressive_paints_[i].painted_)
- continue;
-
- // This rectangle must have been merged with another one, that's why we
- // weren't asked to paint it. Remove it or otherwise we'll never finish
- // painting.
- FPDF_RenderPage_Close(
- pages_[progressive_paints_[i].page_index]->GetPage());
- FPDFBitmap_Destroy(progressive_paints_[i].bitmap);
- progressive_paints_.erase(progressive_paints_.begin() + i);
- --i;
- }
-}
-
-bool PDFiumEngine::HandleDocumentLoad(const pp::URLLoader& loader) {
- password_tries_remaining_ = kMaxPasswordTries;
- return doc_loader_.Init(loader, url_, headers_);
-}
-
-pp::Instance* PDFiumEngine::GetPluginInstance() {
- return client_->GetPluginInstance();
-}
-
-pp::URLLoader PDFiumEngine::CreateURLLoader() {
- return client_->CreateURLLoader();
-}
-
-void PDFiumEngine::AppendPage(PDFEngine* engine, int index) {
- // Unload and delete the blank page before appending.
- pages_[index]->Unload();
- pages_[index]->set_calculated_links(false);
- pp::Size curr_page_size = GetPageSize(index);
- FPDFPage_Delete(doc_, index);
- FPDF_ImportPages(doc_,
- static_cast<PDFiumEngine*>(engine)->doc(),
- "1",
- index);
- pp::Size new_page_size = GetPageSize(index);
- if (curr_page_size != new_page_size)
- LoadPageInfo(true);
- client_->Invalidate(GetPageScreenRect(index));
-}
-
-pp::Point PDFiumEngine::GetScrollPosition() {
- return position_;
-}
-
-void PDFiumEngine::SetScrollPosition(const pp::Point& position) {
- position_ = position;
-}
-
-bool PDFiumEngine::IsProgressiveLoad() {
- return doc_loader_.is_partial_document();
-}
-
-void PDFiumEngine::OnPartialDocumentLoaded() {
- file_access_.m_FileLen = doc_loader_.document_size();
- fpdf_availability_ = FPDFAvail_Create(&file_availability_, &file_access_);
- DCHECK(fpdf_availability_);
-
- // Currently engine does not deal efficiently with some non-linearized files.
- // See http://code.google.com/p/chromium/issues/detail?id=59400
- // To improve user experience we download entire file for non-linearized PDF.
- if (!FPDFAvail_IsLinearized(fpdf_availability_)) {
- doc_loader_.RequestData(0, doc_loader_.document_size());
- return;
- }
-
- LoadDocument();
-}
-
-void PDFiumEngine::OnPendingRequestComplete() {
- if (!doc_ || !form_) {
- LoadDocument();
- return;
- }
-
- // LoadDocument() will result in |pending_pages_| being reset so there's no
- // need to run the code below in that case.
- bool update_pages = false;
- std::vector<int> still_pending;
- for (size_t i = 0; i < pending_pages_.size(); ++i) {
- if (CheckPageAvailable(pending_pages_[i], &still_pending)) {
- update_pages = true;
- if (IsPageVisible(pending_pages_[i]))
- client_->Invalidate(GetPageScreenRect(pending_pages_[i]));
- }
- }
- pending_pages_.swap(still_pending);
- if (update_pages)
- LoadPageInfo(true);
-}
-
-void PDFiumEngine::OnNewDataAvailable() {
- client_->DocumentLoadProgress(doc_loader_.GetAvailableData(),
- doc_loader_.document_size());
-}
-
-void PDFiumEngine::OnDocumentComplete() {
- if (!doc_ || !form_) {
- file_access_.m_FileLen = doc_loader_.document_size();
- LoadDocument();
- return;
- }
-
- bool need_update = false;
- for (size_t i = 0; i < pages_.size(); ++i) {
- if (pages_[i]->available())
- continue;
-
- pages_[i]->set_available(true);
- // We still need to call IsPageAvail() even if the whole document is
- // already downloaded.
- FPDFAvail_IsPageAvail(fpdf_availability_, i, &download_hints_);
- need_update = true;
- if (IsPageVisible(i))
- client_->Invalidate(GetPageScreenRect(i));
- }
- if (need_update)
- LoadPageInfo(true);
-
- FinishLoadingDocument();
-}
-
-void PDFiumEngine::FinishLoadingDocument() {
- DCHECK(doc_loader_.IsDocumentComplete() && doc_);
- if (called_do_document_action_)
- return;
- called_do_document_action_ = true;
-
- // These can only be called now, as the JS might end up needing a page.
- FORM_DoDocumentJSAction(form_);
- FORM_DoDocumentOpenAction(form_);
- if (most_visible_page_ != -1) {
- FPDF_PAGE new_page = pages_[most_visible_page_]->GetPage();
- FORM_DoPageAAction(new_page, form_, FPDFPAGE_AACTION_OPEN);
- }
-
- if (doc_) // This can only happen if loading |doc_| fails.
- client_->DocumentLoadComplete(pages_.size());
-}
-
-void PDFiumEngine::UnsupportedFeature(int type) {
- std::string feature;
- switch (type) {
- case FPDF_UNSP_DOC_XFAFORM:
- //feature = "XFA";
- break;
- case FPDF_UNSP_DOC_PORTABLECOLLECTION:
- feature = "Portfolios_Packages";
- break;
- case FPDF_UNSP_DOC_ATTACHMENT:
- case FPDF_UNSP_ANNOT_ATTACHMENT:
- feature = "Attachment";
- break;
- case FPDF_UNSP_DOC_SECURITY:
- feature = "Rights_Management";
- break;
- case FPDF_UNSP_DOC_SHAREDREVIEW:
- feature = "Shared_Review";
- break;
- case FPDF_UNSP_DOC_SHAREDFORM_ACROBAT:
- case FPDF_UNSP_DOC_SHAREDFORM_FILESYSTEM:
- case FPDF_UNSP_DOC_SHAREDFORM_EMAIL:
- feature = "Shared_Form";
- break;
- case FPDF_UNSP_ANNOT_3DANNOT:
- feature = "3D";
- break;
- case FPDF_UNSP_ANNOT_MOVIE:
- feature = "Movie";
- break;
- case FPDF_UNSP_ANNOT_SOUND:
- feature = "Sound";
- break;
- case FPDF_UNSP_ANNOT_SCREEN_MEDIA:
- case FPDF_UNSP_ANNOT_SCREEN_RICHMEDIA:
- feature = "Screen";
- break;
- case FPDF_UNSP_ANNOT_SIG:
- feature = "Digital_Signature";
- break;
- }
- client_->DocumentHasUnsupportedFeature(feature);
-}
-
-void PDFiumEngine::ContinueFind(int32_t result) {
- StartFind(current_find_text_.c_str(), !!result);
-}
-
-bool PDFiumEngine::HandleEvent(const pp::InputEvent& event) {
- DCHECK(!defer_page_unload_);
- defer_page_unload_ = true;
- bool rv = false;
- switch (event.GetType()) {
- case PP_INPUTEVENT_TYPE_MOUSEDOWN:
- rv = OnMouseDown(pp::MouseInputEvent(event));
- break;
- case PP_INPUTEVENT_TYPE_MOUSEUP:
- rv = OnMouseUp(pp::MouseInputEvent(event));
- break;
- case PP_INPUTEVENT_TYPE_MOUSEMOVE:
- rv = OnMouseMove(pp::MouseInputEvent(event));
- break;
- case PP_INPUTEVENT_TYPE_KEYDOWN:
- rv = OnKeyDown(pp::KeyboardInputEvent(event));
- break;
- case PP_INPUTEVENT_TYPE_KEYUP:
- rv = OnKeyUp(pp::KeyboardInputEvent(event));
- break;
- case PP_INPUTEVENT_TYPE_CHAR:
- rv = OnChar(pp::KeyboardInputEvent(event));
- break;
- default:
- break;
- }
-
- DCHECK(defer_page_unload_);
- defer_page_unload_ = false;
- for (size_t i = 0; i < deferred_page_unloads_.size(); ++i)
- pages_[deferred_page_unloads_[i]]->Unload();
- deferred_page_unloads_.clear();
- return rv;
-}
-
-uint32_t PDFiumEngine::QuerySupportedPrintOutputFormats() {
- if (!HasPermission(PDFEngine::PERMISSION_PRINT_LOW_QUALITY))
- return 0;
- return PP_PRINTOUTPUTFORMAT_PDF;
-}
-
-void PDFiumEngine::PrintBegin() {
- FORM_DoDocumentAAction(form_, FPDFDOC_AACTION_WP);
-}
-
-pp::Resource PDFiumEngine::PrintPages(
- const PP_PrintPageNumberRange_Dev* page_ranges, uint32_t page_range_count,
- const PP_PrintSettings_Dev& print_settings) {
- if (HasPermission(PDFEngine::PERMISSION_PRINT_HIGH_QUALITY))
- return PrintPagesAsPDF(page_ranges, page_range_count, print_settings);
- else if (HasPermission(PDFEngine::PERMISSION_PRINT_LOW_QUALITY))
- return PrintPagesAsRasterPDF(page_ranges, page_range_count, print_settings);
- return pp::Resource();
-}
-
-FPDF_DOCUMENT PDFiumEngine::CreateSinglePageRasterPdf(
- double source_page_width,
- double source_page_height,
- const PP_PrintSettings_Dev& print_settings,
- PDFiumPage* page_to_print) {
- FPDF_DOCUMENT temp_doc = FPDF_CreateNewDocument();
- if (!temp_doc)
- return temp_doc;
-
- const pp::Size& bitmap_size(page_to_print->rect().size());
-
- FPDF_PAGE temp_page =
- FPDFPage_New(temp_doc, 0, source_page_width, source_page_height);
-
- pp::ImageData image = pp::ImageData(client_->GetPluginInstance(),
- PP_IMAGEDATAFORMAT_BGRA_PREMUL,
- bitmap_size,
- false);
-
- FPDF_BITMAP bitmap = FPDFBitmap_CreateEx(bitmap_size.width(),
- bitmap_size.height(),
- FPDFBitmap_BGRx,
- image.data(),
- image.stride());
-
- // Clear the bitmap
- FPDFBitmap_FillRect(
- bitmap, 0, 0, bitmap_size.width(), bitmap_size.height(), 0xFFFFFFFF);
-
- pp::Rect page_rect = page_to_print->rect();
- FPDF_RenderPageBitmap(bitmap,
- page_to_print->GetPrintPage(),
- page_rect.x(),
- page_rect.y(),
- page_rect.width(),
- page_rect.height(),
- print_settings.orientation,
- FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH);
-
- double ratio_x = (static_cast<double>(bitmap_size.width()) * kPointsPerInch) /
- print_settings.dpi;
- double ratio_y =
- (static_cast<double>(bitmap_size.height()) * kPointsPerInch) /
- print_settings.dpi;
-
- // Add the bitmap to an image object and add the image object to the output
- // page.
- FPDF_PAGEOBJECT temp_img = FPDFPageObj_NewImgeObj(temp_doc);
- FPDFImageObj_SetBitmap(&temp_page, 1, temp_img, bitmap);
- FPDFImageObj_SetMatrix(temp_img, ratio_x, 0, 0, ratio_y, 0, 0);
- FPDFPage_InsertObject(temp_page, temp_img);
- FPDFPage_GenerateContent(temp_page);
- FPDF_ClosePage(temp_page);
-
- page_to_print->ClosePrintPage();
- FPDFBitmap_Destroy(bitmap);
-
- return temp_doc;
-}
-
-pp::Buffer_Dev PDFiumEngine::PrintPagesAsRasterPDF(
- const PP_PrintPageNumberRange_Dev* page_ranges, uint32_t page_range_count,
- const PP_PrintSettings_Dev& print_settings) {
- if (!page_range_count)
- return pp::Buffer_Dev();
-
- // If document is not downloaded yet, disable printing.
- if (doc_ && !doc_loader_.IsDocumentComplete())
- return pp::Buffer_Dev();
-
- FPDF_DOCUMENT output_doc = FPDF_CreateNewDocument();
- if (!output_doc)
- return pp::Buffer_Dev();
-
- SaveSelectedFormForPrint();
-
- std::vector<PDFiumPage> pages_to_print;
- // width and height of source PDF pages.
- std::vector<std::pair<double, double> > source_page_sizes;
- // Collect pages to print and sizes of source pages.
- std::vector<uint32_t> page_numbers =
- GetPageNumbersFromPrintPageNumberRange(page_ranges, page_range_count);
- for (size_t i = 0; i < page_numbers.size(); ++i) {
- uint32_t page_number = page_numbers[i];
- FPDF_PAGE pdf_page = FPDF_LoadPage(doc_, page_number);
- double source_page_width = FPDF_GetPageWidth(pdf_page);
- double source_page_height = FPDF_GetPageHeight(pdf_page);
- source_page_sizes.push_back(std::make_pair(source_page_width,
- source_page_height));
-
- int width_in_pixels = ConvertUnit(source_page_width,
- static_cast<int>(kPointsPerInch),
- print_settings.dpi);
- int height_in_pixels = ConvertUnit(source_page_height,
- static_cast<int>(kPointsPerInch),
- print_settings.dpi);
-
- pp::Rect rect(width_in_pixels, height_in_pixels);
- pages_to_print.push_back(PDFiumPage(this, page_number, rect, true));
- FPDF_ClosePage(pdf_page);
- }
-
-#if defined(OS_LINUX)
- g_last_instance_id = client_->GetPluginInstance()->pp_instance();
-#endif
-
- size_t i = 0;
- for (; i < pages_to_print.size(); ++i) {
- double source_page_width = source_page_sizes[i].first;
- double source_page_height = source_page_sizes[i].second;
-
- // Use temp_doc to compress image by saving PDF to buffer.
- FPDF_DOCUMENT temp_doc = CreateSinglePageRasterPdf(source_page_width,
- source_page_height,
- print_settings,
- &pages_to_print[i]);
-
- if (!temp_doc)
- break;
-
- pp::Buffer_Dev buffer = GetFlattenedPrintData(temp_doc);
- FPDF_CloseDocument(temp_doc);
-
- PDFiumMemBufferFileRead file_read(buffer.data(), buffer.size());
- temp_doc = FPDF_LoadCustomDocument(&file_read, NULL);
-
- FPDF_BOOL imported = FPDF_ImportPages(output_doc, temp_doc, "1", i);
- FPDF_CloseDocument(temp_doc);
- if (!imported)
- break;
- }
-
- pp::Buffer_Dev buffer;
- if (i == pages_to_print.size()) {
- FPDF_CopyViewerPreferences(output_doc, doc_);
- FitContentsToPrintableAreaIfRequired(output_doc, print_settings);
- // Now flatten all the output pages.
- buffer = GetFlattenedPrintData(output_doc);
- }
- FPDF_CloseDocument(output_doc);
- return buffer;
-}
-
-pp::Buffer_Dev PDFiumEngine::GetFlattenedPrintData(const FPDF_DOCUMENT& doc) {
- int page_count = FPDF_GetPageCount(doc);
- bool flatten_succeeded = true;
- for (int i = 0; i < page_count; ++i) {
- FPDF_PAGE page = FPDF_LoadPage(doc, i);
- DCHECK(page);
- if (page) {
- int flatten_ret = FPDFPage_Flatten(page, FLAT_PRINT);
- FPDF_ClosePage(page);
- if (flatten_ret == FLATTEN_FAIL) {
- flatten_succeeded = false;
- break;
- }
- } else {
- flatten_succeeded = false;
- break;
- }
- }
- if (!flatten_succeeded) {
- FPDF_CloseDocument(doc);
- return pp::Buffer_Dev();
- }
-
- pp::Buffer_Dev buffer;
- PDFiumMemBufferFileWrite output_file_write;
- if (FPDF_SaveAsCopy(doc, &output_file_write, 0)) {
- buffer = pp::Buffer_Dev(
- client_->GetPluginInstance(), output_file_write.size());
- if (!buffer.is_null()) {
- memcpy(buffer.data(), output_file_write.buffer().c_str(),
- output_file_write.size());
- }
- }
- return buffer;
-}
-
-pp::Buffer_Dev PDFiumEngine::PrintPagesAsPDF(
- const PP_PrintPageNumberRange_Dev* page_ranges, uint32_t page_range_count,
- const PP_PrintSettings_Dev& print_settings) {
- if (!page_range_count)
- return pp::Buffer_Dev();
-
- DCHECK(doc_);
- FPDF_DOCUMENT output_doc = FPDF_CreateNewDocument();
- if (!output_doc)
- return pp::Buffer_Dev();
-
- SaveSelectedFormForPrint();
-
- std::string page_number_str;
- for (uint32_t index = 0; index < page_range_count; ++index) {
- if (!page_number_str.empty())
- page_number_str.append(",");
- page_number_str.append(
- base::IntToString(page_ranges[index].first_page_number + 1));
- if (page_ranges[index].first_page_number !=
- page_ranges[index].last_page_number) {
- page_number_str.append("-");
- page_number_str.append(
- base::IntToString(page_ranges[index].last_page_number + 1));
- }
- }
-
- std::vector<uint32_t> page_numbers =
- GetPageNumbersFromPrintPageNumberRange(page_ranges, page_range_count);
- for (size_t i = 0; i < page_numbers.size(); ++i) {
- uint32_t page_number = page_numbers[i];
- pages_[page_number]->GetPage();
- if (!IsPageVisible(page_numbers[i]))
- pages_[page_number]->Unload();
- }
-
- FPDF_CopyViewerPreferences(output_doc, doc_);
- if (!FPDF_ImportPages(output_doc, doc_, page_number_str.c_str(), 0)) {
- FPDF_CloseDocument(output_doc);
- return pp::Buffer_Dev();
- }
-
- FitContentsToPrintableAreaIfRequired(output_doc, print_settings);
-
- // Now flatten all the output pages.
- pp::Buffer_Dev buffer = GetFlattenedPrintData(output_doc);
- FPDF_CloseDocument(output_doc);
- return buffer;
-}
-
-void PDFiumEngine::FitContentsToPrintableAreaIfRequired(
- const FPDF_DOCUMENT& doc, const PP_PrintSettings_Dev& print_settings) {
- // Check to see if we need to fit pdf contents to printer paper size.
- if (print_settings.print_scaling_option !=
- PP_PRINTSCALINGOPTION_SOURCE_SIZE) {
- int num_pages = FPDF_GetPageCount(doc);
- // In-place transformation is more efficient than creating a new
- // transformed document from the source document. Therefore, transform
- // every page to fit the contents in the selected printer paper.
- for (int i = 0; i < num_pages; ++i) {
- FPDF_PAGE page = FPDF_LoadPage(doc, i);
- TransformPDFPageForPrinting(page, print_settings);
- FPDF_ClosePage(page);
- }
- }
-}
-
-void PDFiumEngine::SaveSelectedFormForPrint() {
- FORM_ForceToKillFocus(form_);
- client_->FormTextFieldFocusChange(false);
-}
-
-void PDFiumEngine::PrintEnd() {
- FORM_DoDocumentAAction(form_, FPDFDOC_AACTION_DP);
-}
-
-PDFiumPage::Area PDFiumEngine::GetCharIndex(
- const pp::MouseInputEvent& event, int* page_index,
- int* char_index, PDFiumPage::LinkTarget* target) {
- // First figure out which page this is in.
- pp::Point mouse_point = event.GetPosition();
- pp::Point point(
- static_cast<int>((mouse_point.x() + position_.x()) / current_zoom_),
- static_cast<int>((mouse_point.y() + position_.y()) / current_zoom_));
- return GetCharIndex(point, page_index, char_index, target);
-}
-
-PDFiumPage::Area PDFiumEngine::GetCharIndex(
- const pp::Point& point,
- int* page_index,
- int* char_index,
- PDFiumPage::LinkTarget* target) {
- int page = -1;
- for (size_t i = 0; i < visible_pages_.size(); ++i) {
- if (pages_[visible_pages_[i]]->rect().Contains(point)) {
- page = visible_pages_[i];
- break;
- }
- }
- if (page == -1)
- return PDFiumPage::NONSELECTABLE_AREA;
-
- // If the page hasn't finished rendering, calling into the page sometimes
- // leads to hangs.
- for (size_t i = 0; i < progressive_paints_.size(); ++i) {
- if (progressive_paints_[i].page_index == page)
- return PDFiumPage::NONSELECTABLE_AREA;
- }
-
- *page_index = page;
- return pages_[page]->GetCharIndex(point, current_rotation_, char_index,
- target);
-}
-
-bool PDFiumEngine::OnMouseDown(const pp::MouseInputEvent& event) {
- if (event.GetButton() != PP_INPUTEVENT_MOUSEBUTTON_LEFT)
- return false;
-
- SelectionChangeInvalidator selection_invalidator(this);
- selection_.clear();
-
- int page_index = -1;
- int char_index = -1;
- PDFiumPage::LinkTarget target;
- PDFiumPage::Area area = GetCharIndex(event, &page_index,
- &char_index, &target);
- mouse_down_state_.Set(area, target);
-
- // Decide whether to open link or not based on user action in mouse up and
- // mouse move events.
- if (area == PDFiumPage::WEBLINK_AREA)
- return true;
-
- if (area == PDFiumPage::DOCLINK_AREA) {
- client_->ScrollToPage(target.page);
- client_->FormTextFieldFocusChange(false);
- return true;
- }
-
- if (page_index != -1) {
- last_page_mouse_down_ = page_index;
- double page_x, page_y;
- pp::Point point = event.GetPosition();
- DeviceToPage(page_index, point.x(), point.y(), &page_x, &page_y);
-
- FORM_OnLButtonDown(form_, pages_[page_index]->GetPage(), 0, page_x, page_y);
- int control = FPDPage_HasFormFieldAtPoint(
- form_, pages_[page_index]->GetPage(), page_x, page_y);
- if (control > FPDF_FORMFIELD_UNKNOWN) { // returns -1 sometimes...
-#ifdef _TEST_XFA
- client_->FormTextFieldFocusChange(control == FPDF_FORMFIELD_TEXTFIELD ||
- control == FPDF_FORMFIELD_COMBOBOX ||
- control == FPDF_FORMFIELD_XFA);
-#else
- client_->FormTextFieldFocusChange(control == FPDF_FORMFIELD_TEXTFIELD ||
- control == FPDF_FORMFIELD_COMBOBOX);
-#endif
- return true; // Return now before we get into the selection code.
- }
- }
-
- client_->FormTextFieldFocusChange(false);
-
- if (area != PDFiumPage::TEXT_AREA)
- return true; // Return true so WebKit doesn't do its own highlighting.
-
- if (event.GetClickCount() == 1) {
- OnSingleClick(page_index, char_index);
- } else if (event.GetClickCount() == 2 ||
- event.GetClickCount() == 3) {
- OnMultipleClick(event.GetClickCount(), page_index, char_index);
- }
-
- return true;
-}
-
-void PDFiumEngine::OnSingleClick(int page_index, int char_index) {
- selecting_ = true;
- selection_.push_back(PDFiumRange(pages_[page_index], char_index, 0));
-}
-
-void PDFiumEngine::OnMultipleClick(int click_count,
- int page_index,
- int char_index) {
- // It would be more efficient if the SDK could support finding a space, but
- // now it doesn't.
- int start_index = char_index;
- do {
- base::char16 cur = pages_[page_index]->GetCharAtIndex(start_index);
- // For double click, we want to select one word so we look for whitespace
- // boundaries. For triple click, we want the whole line.
- if (cur == '\n' || (click_count == 2 && (cur == ' ' || cur == '\t')))
- break;
- } while (--start_index >= 0);
- if (start_index)
- start_index++;
-
- int end_index = char_index;
- int total = pages_[page_index]->GetCharCount();
- while (end_index++ <= total) {
- base::char16 cur = pages_[page_index]->GetCharAtIndex(end_index);
- if (cur == '\n' || (click_count == 2 && (cur == ' ' || cur == '\t')))
- break;
- }
-
- selection_.push_back(PDFiumRange(
- pages_[page_index], start_index, end_index - start_index));
-}
-
-bool PDFiumEngine::OnMouseUp(const pp::MouseInputEvent& event) {
- if (event.GetButton() != PP_INPUTEVENT_MOUSEBUTTON_LEFT)
- return false;
-
- int page_index = -1;
- int char_index = -1;
- PDFiumPage::LinkTarget target;
- PDFiumPage::Area area =
- GetCharIndex(event, &page_index, &char_index, &target);
-
- // Open link on mouse up for same link for which mouse down happened earlier.
- if (mouse_down_state_.Matches(area, target)) {
- if (area == PDFiumPage::WEBLINK_AREA) {
- bool open_in_new_tab = !!(event.GetModifiers() & kDefaultKeyModifier);
- client_->NavigateTo(target.url, open_in_new_tab);
- client_->FormTextFieldFocusChange(false);
- return true;
- }
- }
-
- if (page_index != -1) {
- double page_x, page_y;
- pp::Point point = event.GetPosition();
- DeviceToPage(page_index, point.x(), point.y(), &page_x, &page_y);
- FORM_OnLButtonUp(
- form_, pages_[page_index]->GetPage(), 0, page_x, page_y);
- }
-
- if (!selecting_)
- return false;
-
- selecting_ = false;
- return true;
-}
-
-bool PDFiumEngine::OnMouseMove(const pp::MouseInputEvent& event) {
- int page_index = -1;
- int char_index = -1;
- PDFiumPage::LinkTarget target;
- PDFiumPage::Area area =
- GetCharIndex(event, &page_index, &char_index, &target);
-
- // Clear |mouse_down_state_| if mouse moves away from where the mouse down
- // happened.
- if (!mouse_down_state_.Matches(area, target))
- mouse_down_state_.Reset();
-
- if (!selecting_) {
- PP_CursorType_Dev cursor;
- switch (area) {
- case PDFiumPage::TEXT_AREA:
- cursor = PP_CURSORTYPE_IBEAM;
- break;
- case PDFiumPage::WEBLINK_AREA:
- case PDFiumPage::DOCLINK_AREA:
- cursor = PP_CURSORTYPE_HAND;
- break;
- case PDFiumPage::NONSELECTABLE_AREA:
- default:
- cursor = PP_CURSORTYPE_POINTER;
- break;
- }
-
- if (page_index != -1) {
- double page_x, page_y;
- pp::Point point = event.GetPosition();
- DeviceToPage(page_index, point.x(), point.y(), &page_x, &page_y);
-
- FORM_OnMouseMove(form_, pages_[page_index]->GetPage(), 0, page_x, page_y);
- int control = FPDPage_HasFormFieldAtPoint(
- form_, pages_[page_index]->GetPage(), page_x, page_y);
- switch (control) {
- case FPDF_FORMFIELD_PUSHBUTTON:
- case FPDF_FORMFIELD_CHECKBOX:
- case FPDF_FORMFIELD_RADIOBUTTON:
- case FPDF_FORMFIELD_COMBOBOX:
- case FPDF_FORMFIELD_LISTBOX:
- cursor = PP_CURSORTYPE_HAND;
- break;
- case FPDF_FORMFIELD_TEXTFIELD:
- cursor = PP_CURSORTYPE_IBEAM;
- break;
- default:
- break;
- }
- }
-
- client_->UpdateCursor(cursor);
- pp::Point point = event.GetPosition();
- std::string url = GetLinkAtPosition(event.GetPosition());
- if (url != link_under_cursor_) {
- link_under_cursor_ = url;
- pp::PDF::SetLinkUnderCursor(GetPluginInstance(), url.c_str());
- }
- // No need to swallow the event, since this might interfere with the
- // scrollbars if the user is dragging them.
- return false;
- }
-
- // We're selecting but right now we're not over text, so don't change the
- // current selection.
- if (area != PDFiumPage::TEXT_AREA && area != PDFiumPage::WEBLINK_AREA &&
- area != PDFiumPage::DOCLINK_AREA) {
- return false;
- }
-
- SelectionChangeInvalidator selection_invalidator(this);
-
- // Check if the user has descreased their selection area and we need to remove
- // pages from selection_.
- for (size_t i = 0; i < selection_.size(); ++i) {
- if (selection_[i].page_index() == page_index) {
- // There should be no other pages after this.
- selection_.erase(selection_.begin() + i + 1, selection_.end());
- break;
- }
- }
-
- if (selection_.size() == 0)
- return false;
-
- int last = selection_.size() - 1;
- if (selection_[last].page_index() == page_index) {
- // Selecting within a page.
- int count;
- if (char_index >= selection_[last].char_index()) {
- // Selecting forward.
- count = char_index - selection_[last].char_index() + 1;
- } else {
- count = char_index - selection_[last].char_index() - 1;
- }
- selection_[last].SetCharCount(count);
- } else if (selection_[last].page_index() < page_index) {
- // Selecting into the next page.
-
- // First make sure that there are no gaps in selection, i.e. if mousedown on
- // page one but we only get mousemove over page three, we want page two.
- for (int i = selection_[last].page_index() + 1; i < page_index; ++i) {
- selection_.push_back(PDFiumRange(pages_[i], 0,
- pages_[i]->GetCharCount()));
- }
-
- int count = pages_[selection_[last].page_index()]->GetCharCount();
- selection_[last].SetCharCount(count - selection_[last].char_index());
- selection_.push_back(PDFiumRange(pages_[page_index], 0, char_index));
- } else {
- // Selecting into the previous page.
- selection_[last].SetCharCount(-selection_[last].char_index());
-
- // First make sure that there are no gaps in selection, i.e. if mousedown on
- // page three but we only get mousemove over page one, we want page two.
- for (int i = selection_[last].page_index() - 1; i > page_index; --i) {
- selection_.push_back(PDFiumRange(pages_[i], 0,
- pages_[i]->GetCharCount()));
- }
-
- int count = pages_[page_index]->GetCharCount();
- selection_.push_back(
- PDFiumRange(pages_[page_index], count, count - char_index));
- }
-
- return true;
-}
-
-bool PDFiumEngine::OnKeyDown(const pp::KeyboardInputEvent& event) {
- if (last_page_mouse_down_ == -1)
- return false;
-
- bool rv = !!FORM_OnKeyDown(
- form_, pages_[last_page_mouse_down_]->GetPage(),
- event.GetKeyCode(), event.GetModifiers());
-
- if (event.GetKeyCode() == ui::VKEY_BACK ||
- event.GetKeyCode() == ui::VKEY_ESCAPE) {
- // Chrome doesn't send char events for backspace or escape keys, see
- // PlatformKeyboardEventBuilder::isCharacterKey() and
- // http://chrome-corpsvn.mtv.corp.google.com/viewvc?view=rev&root=chrome&revision=31805
- // for more information. So just fake one since PDFium uses it.
- std::string str;
- str.push_back(event.GetKeyCode());
- pp::KeyboardInputEvent synthesized(pp::KeyboardInputEvent(
- client_->GetPluginInstance(),
- PP_INPUTEVENT_TYPE_CHAR,
- event.GetTimeStamp(),
- event.GetModifiers(),
- event.GetKeyCode(),
- str));
- OnChar(synthesized);
- }
-
- return rv;
-}
-
-bool PDFiumEngine::OnKeyUp(const pp::KeyboardInputEvent& event) {
- if (last_page_mouse_down_ == -1)
- return false;
-
- return !!FORM_OnKeyUp(
- form_, pages_[last_page_mouse_down_]->GetPage(),
- event.GetKeyCode(), event.GetModifiers());
-}
-
-bool PDFiumEngine::OnChar(const pp::KeyboardInputEvent& event) {
- if (last_page_mouse_down_ == -1)
- return false;
-
- base::string16 str = base::UTF8ToUTF16(event.GetCharacterText().AsString());
- return !!FORM_OnChar(
- form_, pages_[last_page_mouse_down_]->GetPage(),
- str[0],
- event.GetModifiers());
-}
-
-void PDFiumEngine::StartFind(const char* text, bool case_sensitive) {
- // We can get a call to StartFind before we have any page information (i.e.
- // before the first call to LoadDocument has happened). Handle this case.
- if (pages_.empty())
- return;
-
- bool first_search = false;
- int character_to_start_searching_from = 0;
- if (current_find_text_ != text) { // First time we search for this text.
- first_search = true;
- std::vector<PDFiumRange> old_selection = selection_;
- StopFind();
- current_find_text_ = text;
-
- if (old_selection.empty()) {
- // Start searching from the beginning of the document.
- next_page_to_search_ = 0;
- last_page_to_search_ = pages_.size() - 1;
- last_character_index_to_search_ = -1;
- } else {
- // There's a current selection, so start from it.
- next_page_to_search_ = old_selection[0].page_index();
- last_character_index_to_search_ = old_selection[0].char_index();
- character_to_start_searching_from = old_selection[0].char_index();
- last_page_to_search_ = next_page_to_search_;
- }
- }
-
- int current_page = next_page_to_search_;
-
- if (pages_[current_page]->available()) {
- base::string16 str = base::UTF8ToUTF16(text);
- // Don't use PDFium to search for now, since it doesn't support unicode text.
- // Leave the code for now to avoid bit-rot, in case it's fixed later.
- if (0) {
- SearchUsingPDFium(
- str, case_sensitive, first_search, character_to_start_searching_from,
- current_page);
- } else {
- SearchUsingICU(
- str, case_sensitive, first_search, character_to_start_searching_from,
- current_page);
- }
-
- if (!IsPageVisible(current_page))
- pages_[current_page]->Unload();
- }
-
- if (next_page_to_search_ != last_page_to_search_ ||
- (first_search && last_character_index_to_search_ != -1)) {
- ++next_page_to_search_;
- }
-
- if (next_page_to_search_ == static_cast<int>(pages_.size()))
- next_page_to_search_ = 0;
- // If there's only one page in the document and we start searching midway,
- // then we'll want to search the page one more time.
- bool end_of_search =
- next_page_to_search_ == last_page_to_search_ &&
- // Only one page but didn't start midway.
- ((pages_.size() == 1 && last_character_index_to_search_ == -1) ||
- // Started midway, but only 1 page and we already looped around.
- (pages_.size() == 1 && !first_search) ||
- // Started midway, and we've just looped around.
- (pages_.size() > 1 && current_page == next_page_to_search_));
-
- if (end_of_search) {
- // Send the final notification.
- client_->NotifyNumberOfFindResultsChanged(find_results_.size(), true);
-
- // When searching is complete, resume finding at a particular index.
- if (resume_find_index_ != -1) {
- current_find_index_ = resume_find_index_;
- resume_find_index_ = -1;
- }
- } else {
- pp::CompletionCallback callback =
- find_factory_.NewCallback(&PDFiumEngine::ContinueFind);
- pp::Module::Get()->core()->CallOnMainThread(
- 0, callback, case_sensitive ? 1 : 0);
- }
-}
-
-void PDFiumEngine::SearchUsingPDFium(const base::string16& term,
- bool case_sensitive,
- bool first_search,
- int character_to_start_searching_from,
- int current_page) {
- // Find all the matches in the current page.
- unsigned long flags = case_sensitive ? FPDF_MATCHCASE : 0;
- FPDF_SCHHANDLE find = FPDFText_FindStart(
- pages_[current_page]->GetTextPage(),
- reinterpret_cast<const unsigned short*>(term.c_str()),
- flags, character_to_start_searching_from);
-
- // Note: since we search one page at a time, we don't find matches across
- // page boundaries. We could do this manually ourself, but it seems low
- // priority since Reader itself doesn't do it.
- while (FPDFText_FindNext(find)) {
- PDFiumRange result(pages_[current_page],
- FPDFText_GetSchResultIndex(find),
- FPDFText_GetSchCount(find));
-
- if (!first_search &&
- last_character_index_to_search_ != -1 &&
- result.page_index() == last_page_to_search_ &&
- result.char_index() >= last_character_index_to_search_) {
- break;
- }
-
- AddFindResult(result);
- }
-
- FPDFText_FindClose(find);
-}
-
-void PDFiumEngine::SearchUsingICU(const base::string16& term,
- bool case_sensitive,
- bool first_search,
- int character_to_start_searching_from,
- int current_page) {
- base::string16 page_text;
- int text_length = pages_[current_page]->GetCharCount();
- if (character_to_start_searching_from) {
- text_length -= character_to_start_searching_from;
- } else if (!first_search &&
- last_character_index_to_search_ != -1 &&
- current_page == last_page_to_search_) {
- text_length = last_character_index_to_search_;
- }
- if (text_length <= 0)
- return;
- unsigned short* data =
- reinterpret_cast<unsigned short*>(WriteInto(&page_text, text_length + 1));
- FPDFText_GetText(pages_[current_page]->GetTextPage(),
- character_to_start_searching_from,
- text_length,
- data);
- std::vector<PDFEngine::Client::SearchStringResult> results;
- client_->SearchString(
- page_text.c_str(), term.c_str(), case_sensitive, &results);
- for (size_t i = 0; i < results.size(); ++i) {
- // Need to map the indexes from the page text, which may have generated
- // characters like space etc, to character indices from the page.
- int temp_start = results[i].start_index + character_to_start_searching_from;
- int start = FPDFText_GetCharIndexFromTextIndex(
- pages_[current_page]->GetTextPage(), temp_start);
- int end = FPDFText_GetCharIndexFromTextIndex(
- pages_[current_page]->GetTextPage(),
- temp_start + results[i].length);
- AddFindResult(PDFiumRange(pages_[current_page], start, end - start));
- }
-}
-
-void PDFiumEngine::AddFindResult(const PDFiumRange& result) {
- // Figure out where to insert the new location, since we could have
- // started searching midway and now we wrapped.
- size_t i;
- int page_index = result.page_index();
- int char_index = result.char_index();
- for (i = 0; i < find_results_.size(); ++i) {
- if (find_results_[i].page_index() > page_index ||
- (find_results_[i].page_index() == page_index &&
- find_results_[i].char_index() > char_index)) {
- break;
- }
- }
- find_results_.insert(find_results_.begin() + i, result);
- UpdateTickMarks();
-
- if (current_find_index_ == -1 && resume_find_index_ == -1) {
- // Select the first match.
- SelectFindResult(true);
- } else if (static_cast<int>(i) <= current_find_index_) {
- // Update the current match index
- current_find_index_++;
- client_->NotifySelectedFindResultChanged(current_find_index_);
- }
- client_->NotifyNumberOfFindResultsChanged(find_results_.size(), false);
-}
-
-bool PDFiumEngine::SelectFindResult(bool forward) {
- if (find_results_.empty()) {
- NOTREACHED();
- return false;
- }
-
- SelectionChangeInvalidator selection_invalidator(this);
-
- // Move back/forward through the search locations we previously found.
- if (forward) {
- if (++current_find_index_ == static_cast<int>(find_results_.size()))
- current_find_index_ = 0;
- } else {
- if (--current_find_index_ < 0) {
- current_find_index_ = find_results_.size() - 1;
- }
- }
-
- // Update the selection before telling the client to scroll, since it could
- // paint then.
- selection_.clear();
- selection_.push_back(find_results_[current_find_index_]);
-
- // If the result is not in view, scroll to it.
- size_t i;
- pp::Rect bounding_rect;
- pp::Rect visible_rect = GetVisibleRect();
- // Use zoom of 1.0 since visible_rect is without zoom.
- std::vector<pp::Rect> rects = find_results_[current_find_index_].
- GetScreenRects(pp::Point(), 1.0, current_rotation_);
- for (i = 0; i < rects.size(); ++i)
- bounding_rect = bounding_rect.Union(rects[i]);
- if (!visible_rect.Contains(bounding_rect)) {
- pp::Point center = bounding_rect.CenterPoint();
- // Make the page centered.
- int new_y = static_cast<int>(center.y() * current_zoom_) -
- static_cast<int>(visible_rect.height() * current_zoom_ / 2);
- if (new_y < 0)
- new_y = 0;
- client_->ScrollToY(new_y);
-
- // Only move horizontally if it's not visible.
- if (center.x() < visible_rect.x() || center.x() > visible_rect.right()) {
- int new_x = static_cast<int>(center.x() * current_zoom_) -
- static_cast<int>(visible_rect.width() * current_zoom_ / 2);
- if (new_x < 0)
- new_x = 0;
- client_->ScrollToX(new_x);
- }
- }
-
- client_->NotifySelectedFindResultChanged(current_find_index_);
-
- return true;
-}
-
-void PDFiumEngine::StopFind() {
- SelectionChangeInvalidator selection_invalidator(this);
-
- selection_.clear();
- selecting_ = false;
- find_results_.clear();
- next_page_to_search_ = -1;
- last_page_to_search_ = -1;
- last_character_index_to_search_ = -1;
- current_find_index_ = -1;
- current_find_text_.clear();
- UpdateTickMarks();
- find_factory_.CancelAll();
-}
-
-void PDFiumEngine::UpdateTickMarks() {
- std::vector<pp::Rect> tickmarks;
- for (size_t i = 0; i < find_results_.size(); ++i) {
- pp::Rect rect;
- // Always use an origin of 0,0 since scroll positions don't affect tickmark.
- std::vector<pp::Rect> rects = find_results_[i].GetScreenRects(
- pp::Point(0, 0), current_zoom_, current_rotation_);
- for (size_t j = 0; j < rects.size(); ++j)
- rect = rect.Union(rects[j]);
- tickmarks.push_back(rect);
- }
-
- client_->UpdateTickMarks(tickmarks);
-}
-
-void PDFiumEngine::ZoomUpdated(double new_zoom_level) {
- CancelPaints();
-
- current_zoom_ = new_zoom_level;
-
- CalculateVisiblePages();
- UpdateTickMarks();
-}
-
-void PDFiumEngine::RotateClockwise() {
- current_rotation_ = (current_rotation_ + 1) % 4;
-
- // Store the current find index so that we can resume finding at that
- // particular index after we have recomputed the find results.
- std::string current_find_text = current_find_text_;
- resume_find_index_ = current_find_index_;
-
- InvalidateAllPages();
-
- if (!current_find_text.empty())
- StartFind(current_find_text.c_str(), false);
-}
-
-void PDFiumEngine::RotateCounterclockwise() {
- current_rotation_ = (current_rotation_ - 1) % 4;
-
- // Store the current find index so that we can resume finding at that
- // particular index after we have recomputed the find results.
- std::string current_find_text = current_find_text_;
- resume_find_index_ = current_find_index_;
-
- InvalidateAllPages();
-
- if (!current_find_text.empty())
- StartFind(current_find_text.c_str(), false);
-}
-
-void PDFiumEngine::InvalidateAllPages() {
- CancelPaints();
- StopFind();
- LoadPageInfo(true);
- client_->Invalidate(pp::Rect(plugin_size_));
-}
-
-std::string PDFiumEngine::GetSelectedText() {
- base::string16 result;
- for (size_t i = 0; i < selection_.size(); ++i) {
- if (i > 0 &&
- selection_[i - 1].page_index() > selection_[i].page_index()) {
- result = selection_[i].GetText() + result;
- } else {
- result.append(selection_[i].GetText());
- }
- }
-
- FormatStringWithHyphens(&result);
- FormatStringForOS(&result);
- return base::UTF16ToUTF8(result);
-}
-
-std::string PDFiumEngine::GetLinkAtPosition(const pp::Point& point) {
- int temp;
- PDFiumPage::LinkTarget target;
- pp::Point point_in_page(
- static_cast<int>((point.x() + position_.x()) / current_zoom_),
- static_cast<int>((point.y() + position_.y()) / current_zoom_));
- PDFiumPage::Area area = GetCharIndex(point_in_page, &temp, &temp, &target);
- if (area == PDFiumPage::WEBLINK_AREA)
- return target.url;
- return std::string();
-}
-
-bool PDFiumEngine::IsSelecting() {
- return selecting_;
-}
-
-bool PDFiumEngine::HasPermission(DocumentPermission permission) const {
- switch (permission) {
- case PERMISSION_COPY:
- return (permissions_ & kPDFPermissionCopyMask) != 0;
- case PERMISSION_COPY_ACCESSIBLE:
- return (permissions_ & kPDFPermissionCopyAccessibleMask) != 0;
- case PERMISSION_PRINT_LOW_QUALITY:
- return (permissions_ & kPDFPermissionPrintLowQualityMask) != 0;
- case PERMISSION_PRINT_HIGH_QUALITY:
- return (permissions_ & kPDFPermissionPrintLowQualityMask) != 0 &&
- (permissions_ & kPDFPermissionPrintHighQualityMask) != 0;
- default:
- return true;
- };
-}
-
-void PDFiumEngine::SelectAll() {
- SelectionChangeInvalidator selection_invalidator(this);
-
- selection_.clear();
- for (size_t i = 0; i < pages_.size(); ++i)
- if (pages_[i]->available()) {
- selection_.push_back(PDFiumRange(pages_[i], 0,
- pages_[i]->GetCharCount()));
- }
-}
-
-int PDFiumEngine::GetNumberOfPages() {
- return pages_.size();
-}
-
-int PDFiumEngine::GetNamedDestinationPage(const std::string& destination) {
- // Look for the destination.
- FPDF_DEST dest = FPDF_GetNamedDestByName(doc_, destination.c_str());
- if (!dest) {
- // Look for a bookmark with the same name.
- base::string16 destination_wide = base::UTF8ToUTF16(destination);
- FPDF_WIDESTRING destination_pdf_wide =
- reinterpret_cast<FPDF_WIDESTRING>(destination_wide.c_str());
- FPDF_BOOKMARK bookmark = FPDFBookmark_Find(doc_, destination_pdf_wide);
- if (!bookmark)
- return -1;
- dest = FPDFBookmark_GetDest(doc_, bookmark);
- }
- return dest ? FPDFDest_GetPageIndex(doc_, dest) : -1;
-}
-
-int PDFiumEngine::GetFirstVisiblePage() {
- CalculateVisiblePages();
- return first_visible_page_;
-}
-
-int PDFiumEngine::GetMostVisiblePage() {
- CalculateVisiblePages();
- return most_visible_page_;
-}
-
-pp::Rect PDFiumEngine::GetPageRect(int index) {
- pp::Rect rc(pages_[index]->rect());
- rc.Inset(-kPageShadowLeft, -kPageShadowTop,
- -kPageShadowRight, -kPageShadowBottom);
- return rc;
-}
-
-pp::Rect PDFiumEngine::GetPageContentsRect(int index) {
- return GetScreenRect(pages_[index]->rect());
-}
-
-void PDFiumEngine::PaintThumbnail(pp::ImageData* image_data, int index) {
- FPDF_BITMAP bitmap = FPDFBitmap_CreateEx(
- image_data->size().width(), image_data->size().height(),
- FPDFBitmap_BGRx, image_data->data(), image_data->stride());
-
- if (pages_[index]->available()) {
- FPDFBitmap_FillRect(bitmap, 0, 0, image_data->size().width(),
- image_data->size().height(), 0xFFFFFFFF);
-
- FPDF_RenderPageBitmap(
- bitmap, pages_[index]->GetPage(), 0, 0, image_data->size().width(),
- image_data->size().height(), 0, GetRenderingFlags());
- } else {
- FPDFBitmap_FillRect(bitmap, 0, 0, image_data->size().width(),
- image_data->size().height(), kPendingPageColor);
- }
-
- FPDFBitmap_Destroy(bitmap);
-}
-
-void PDFiumEngine::SetGrayscale(bool grayscale) {
- render_grayscale_ = grayscale;
-}
-
-void PDFiumEngine::OnCallback(int id) {
- if (!timers_.count(id))
- return;
-
- timers_[id].second(id);
- if (timers_.count(id)) // The callback might delete the timer.
- client_->ScheduleCallback(id, timers_[id].first);
-}
-
-std::string PDFiumEngine::GetPageAsJSON(int index) {
- if (!(HasPermission(PERMISSION_COPY) ||
- HasPermission(PERMISSION_COPY_ACCESSIBLE))) {
- return "{}";
- }
-
- if (index < 0 || static_cast<size_t>(index) > pages_.size() - 1)
- return "{}";
-
- scoped_ptr<base::Value> node(
- pages_[index]->GetAccessibleContentAsValue(current_rotation_));
- std::string page_json;
- base::JSONWriter::Write(node.get(), &page_json);
- return page_json;
-}
-
-bool PDFiumEngine::GetPrintScaling() {
- return !!FPDF_VIEWERREF_GetPrintScaling(doc_);
-}
-
-void PDFiumEngine::AppendBlankPages(int num_pages) {
- DCHECK(num_pages != 0);
-
- if (!doc_)
- return;
-
- selection_.clear();
- pending_pages_.clear();
-
- // Delete all pages except the first one.
- while (pages_.size() > 1) {
- delete pages_.back();
- pages_.pop_back();
- FPDFPage_Delete(doc_, pages_.size());
- }
-
- // Calculate document size and all page sizes.
- std::vector<pp::Rect> page_rects;
- pp::Size page_size = GetPageSize(0);
- page_size.Enlarge(kPageShadowLeft + kPageShadowRight,
- kPageShadowTop + kPageShadowBottom);
- pp::Size old_document_size = document_size_;
- document_size_ = pp::Size(page_size.width(), 0);
- for (int i = 0; i < num_pages; ++i) {
- if (i != 0) {
- // Add space for horizontal separator.
- document_size_.Enlarge(0, kPageSeparatorThickness);
- }
-
- pp::Rect rect(pp::Point(0, document_size_.height()), page_size);
- page_rects.push_back(rect);
-
- document_size_.Enlarge(0, page_size.height());
- }
-
- // Create blank pages.
- for (int i = 1; i < num_pages; ++i) {
- pp::Rect page_rect(page_rects[i]);
- page_rect.Inset(kPageShadowLeft, kPageShadowTop,
- kPageShadowRight, kPageShadowBottom);
- double width_in_points =
- page_rect.width() * kPointsPerInch / kPixelsPerInch;
- double height_in_points =
- page_rect.height() * kPointsPerInch / kPixelsPerInch;
- FPDFPage_New(doc_, i, width_in_points, height_in_points);
- pages_.push_back(new PDFiumPage(this, i, page_rect, true));
- }
-
- CalculateVisiblePages();
- if (document_size_ != old_document_size)
- client_->DocumentSizeUpdated(document_size_);
-}
-
-void PDFiumEngine::LoadDocument() {
- // Check if the document is ready for loading. If it isn't just bail for now,
- // we will call LoadDocument() again later.
- if (!doc_ && !doc_loader_.IsDocumentComplete() &&
- !FPDFAvail_IsDocAvail(fpdf_availability_, &download_hints_)) {
- return;
- }
-
- // If we're in the middle of getting a password, just return. We will retry
- // loading the document after we get the password anyway.
- if (getting_password_)
- return;
-
- ScopedUnsupportedFeature scoped_unsupported_feature(this);
- bool needs_password = false;
- if (TryLoadingDoc(false, std::string(), &needs_password)) {
- ContinueLoadingDocument(false, std::string());
- return;
- }
- if (needs_password)
- GetPasswordAndLoad();
- else
- client_->DocumentLoadFailed();
-}
-
-bool PDFiumEngine::TryLoadingDoc(bool with_password,
- const std::string& password,
- bool* needs_password) {
- *needs_password = false;
- if (doc_)
- return true;
-
- const char* password_cstr = NULL;
- if (with_password) {
- password_cstr = password.c_str();
- password_tries_remaining_--;
- }
- if (doc_loader_.IsDocumentComplete())
- doc_ = FPDF_LoadCustomDocument(&file_access_, password_cstr);
- else
- doc_ = FPDFAvail_GetDocument(fpdf_availability_, password_cstr);
-
- if (!doc_ && FPDF_GetLastError() == FPDF_ERR_PASSWORD)
- *needs_password = true;
-
- return doc_ != NULL;
-}
-
-void PDFiumEngine::GetPasswordAndLoad() {
- getting_password_ = true;
- DCHECK(!doc_ && FPDF_GetLastError() == FPDF_ERR_PASSWORD);
- client_->GetDocumentPassword(password_factory_.NewCallbackWithOutput(
- &PDFiumEngine::OnGetPasswordComplete));
-}
-
-void PDFiumEngine::OnGetPasswordComplete(int32_t result,
- const pp::Var& password) {
- getting_password_ = false;
-
- bool password_given = false;
- std::string password_text;
- if (result == PP_OK && password.is_string()) {
- password_text = password.AsString();
- if (!password_text.empty())
- password_given = true;
- }
- ContinueLoadingDocument(password_given, password_text);
-}
-
-void PDFiumEngine::ContinueLoadingDocument(
- bool has_password,
- const std::string& password) {
- ScopedUnsupportedFeature scoped_unsupported_feature(this);
-
- bool needs_password = false;
- bool loaded = TryLoadingDoc(has_password, password, &needs_password);
- bool password_incorrect = !loaded && has_password && needs_password;
- if (password_incorrect && password_tries_remaining_ > 0) {
- GetPasswordAndLoad();
- return;
- }
-
- if (!doc_) {
- client_->DocumentLoadFailed();
- return;
- }
-
- if (FPDFDoc_GetPageMode(doc_) == PAGEMODE_USEOUTLINES)
- client_->DocumentHasUnsupportedFeature("Bookmarks");
-
- permissions_ = FPDF_GetDocPermissions(doc_);
-
- if (!form_) {
- // Only returns 0 when data isn't available. If form data is downloaded, or
- // if this isn't a form, returns positive values.
- if (!doc_loader_.IsDocumentComplete() &&
- !FPDFAvail_IsFormAvail(fpdf_availability_, &download_hints_)) {
- return;
- }
-
- form_ = FPDFDOC_InitFormFillEnviroument(
- doc_, static_cast<FPDF_FORMFILLINFO*>(this));
-#ifdef _TEST_XFA
- FPDF_LoadXFA(doc_);
-#endif
-
- FPDF_SetFormFieldHighlightColor(form_, 0, kFormHighlightColor);
- FPDF_SetFormFieldHighlightAlpha(form_, kFormHighlightAlpha);
- }
-
- if (!doc_loader_.IsDocumentComplete()) {
- // Check if the first page is available. In a linearized PDF, that is not
- // always page 0. Doing this gives us the default page size, since when the
- // document is available, the first page is available as well.
- CheckPageAvailable(FPDFAvail_GetFirstPageNum(doc_), &pending_pages_);
- }
-
- LoadPageInfo(false);
-
- if (doc_loader_.IsDocumentComplete())
- FinishLoadingDocument();
-}
-
-void PDFiumEngine::LoadPageInfo(bool reload) {
- pending_pages_.clear();
- pp::Size old_document_size = document_size_;
- document_size_ = pp::Size();
- std::vector<pp::Rect> page_rects;
- int page_count = FPDF_GetPageCount(doc_);
- bool doc_complete = doc_loader_.IsDocumentComplete();
- for (int i = 0; i < page_count; ++i) {
- if (i != 0) {
- // Add space for horizontal separator.
- document_size_.Enlarge(0, kPageSeparatorThickness);
- }
-
- // Get page availability. If reload==false, and document is not loaded yet
- // (we are using async loading) - mark all pages as unavailable.
- // If reload==true (we have document constructed already), get page
- // availability flag from already existing PDFiumPage class.
- bool page_available = reload ? pages_[i]->available() : doc_complete;
-
- pp::Size size = page_available ? GetPageSize(i) : default_page_size_;
- size.Enlarge(kPageShadowLeft + kPageShadowRight,
- kPageShadowTop + kPageShadowBottom);
- pp::Rect rect(pp::Point(0, document_size_.height()), size);
- page_rects.push_back(rect);
-
- if (size.width() > document_size_.width())
- document_size_.set_width(size.width());
-
- document_size_.Enlarge(0, size.height());
- }
-
- for (int i = 0; i < page_count; ++i) {
- // Center pages relative to the entire document.
- page_rects[i].set_x((document_size_.width() - page_rects[i].width()) / 2);
- pp::Rect page_rect(page_rects[i]);
- page_rect.Inset(kPageShadowLeft, kPageShadowTop,
- kPageShadowRight, kPageShadowBottom);
- if (reload) {
- pages_[i]->set_rect(page_rect);
- } else {
- pages_.push_back(new PDFiumPage(this, i, page_rect, doc_complete));
- }
- }
-
- CalculateVisiblePages();
- if (document_size_ != old_document_size)
- client_->DocumentSizeUpdated(document_size_);
-}
-
-void PDFiumEngine::CalculateVisiblePages() {
- // Clear pending requests queue, since it may contain requests to the pages
- // that are already invisible (after scrolling for example).
- pending_pages_.clear();
- doc_loader_.ClearPendingRequests();
-
- visible_pages_.clear();
- pp::Rect visible_rect(plugin_size_);
- for (size_t i = 0; i < pages_.size(); ++i) {
- // Check an entire PageScreenRect, since we might need to repaint side
- // borders and shadows even if the page itself is not visible.
- // For example, when user use pdf with different page sizes and zoomed in
- // outside page area.
- if (visible_rect.Intersects(GetPageScreenRect(i))) {
- visible_pages_.push_back(i);
- CheckPageAvailable(i, &pending_pages_);
- } else {
- // Need to unload pages when we're not using them, since some PDFs use a
- // lot of memory. See http://crbug.com/48791
- if (defer_page_unload_) {
- deferred_page_unloads_.push_back(i);
- } else {
- pages_[i]->Unload();
- }
-
- // If the last mouse down was on a page that's no longer visible, reset
- // that variable so that we don't send keyboard events to it (the focus
- // will be lost when the page is first closed anyways).
- if (static_cast<int>(i) == last_page_mouse_down_)
- last_page_mouse_down_ = -1;
- }
- }
-
- // Any pending highlighting of form fields will be invalid since these are in
- // screen coordinates.
- form_highlights_.clear();
-
- if (visible_pages_.size() == 0)
- first_visible_page_ = -1;
- else
- first_visible_page_ = visible_pages_.front();
-
- int most_visible_page = first_visible_page_;
- // Check if the next page is more visible than the first one.
- if (most_visible_page != -1 &&
- pages_.size() > 0 &&
- most_visible_page < static_cast<int>(pages_.size()) - 1) {
- pp::Rect rc_first =
- visible_rect.Intersect(GetPageScreenRect(most_visible_page));
- pp::Rect rc_next =
- visible_rect.Intersect(GetPageScreenRect(most_visible_page + 1));
- if (rc_next.height() > rc_first.height())
- most_visible_page++;
- }
-
- SetCurrentPage(most_visible_page);
-}
-
-bool PDFiumEngine::IsPageVisible(int index) const {
- for (size_t i = 0; i < visible_pages_.size(); ++i) {
- if (visible_pages_[i] == index)
- return true;
- }
-
- return false;
-}
-
-bool PDFiumEngine::CheckPageAvailable(int index, std::vector<int>* pending) {
- if (!doc_ || !form_)
- return false;
-
- if (static_cast<int>(pages_.size()) > index && pages_[index]->available())
- return true;
-
- if (!FPDFAvail_IsPageAvail(fpdf_availability_, index, &download_hints_)) {
- size_t j;
- for (j = 0; j < pending->size(); ++j) {
- if ((*pending)[j] == index)
- break;
- }
-
- if (j == pending->size())
- pending->push_back(index);
- return false;
- }
-
- if (static_cast<int>(pages_.size()) > index)
- pages_[index]->set_available(true);
- if (!default_page_size_.GetArea())
- default_page_size_ = GetPageSize(index);
- return true;
-}
-
-pp::Size PDFiumEngine::GetPageSize(int index) {
- pp::Size size;
- double width_in_points = 0;
- double height_in_points = 0;
- int rv = FPDF_GetPageSizeByIndex(
- doc_, index, &width_in_points, &height_in_points);
-
- if (rv) {
- int width_in_pixels = static_cast<int>(
- width_in_points * kPixelsPerInch / kPointsPerInch);
- int height_in_pixels = static_cast<int>(
- height_in_points * kPixelsPerInch / kPointsPerInch);
- if (current_rotation_ % 2 == 1)
- std::swap(width_in_pixels, height_in_pixels);
- size = pp::Size(width_in_pixels, height_in_pixels);
- }
- return size;
-}
-
-int PDFiumEngine::StartPaint(int page_index, const pp::Rect& dirty) {
- // For the first time we hit paint, do nothing and just record the paint for
- // the next callback. This keeps the UI responsive in case the user is doing
- // a lot of scrolling.
- ProgressivePaint progressive;
- progressive.rect = dirty;
- progressive.page_index = page_index;
- progressive.bitmap = NULL;
- progressive.painted_ = false;
- progressive_paints_.push_back(progressive);
- return progressive_paints_.size() - 1;
-}
-
-bool PDFiumEngine::ContinuePaint(int progressive_index,
- pp::ImageData* image_data) {
-#if defined(OS_LINUX)
- g_last_instance_id = client_->GetPluginInstance()->pp_instance();
-#endif
-
- int rv;
- int page_index = progressive_paints_[progressive_index].page_index;
- last_progressive_start_time_ = base::Time::Now();
- if (progressive_paints_[progressive_index].bitmap) {
- rv = FPDF_RenderPage_Continue(
- pages_[page_index]->GetPage(), static_cast<IFSDK_PAUSE*>(this));
- } else {
- pp::Rect dirty = progressive_paints_[progressive_index].rect;
- progressive_paints_[progressive_index].bitmap = CreateBitmap(dirty,
- image_data);
- int start_x, start_y, size_x, size_y;
- GetPDFiumRect(
- page_index, dirty, &start_x, &start_y, &size_x, &size_y);
- FPDFBitmap_FillRect(progressive_paints_[progressive_index].bitmap, start_x,
- start_y, size_x, size_y, 0xFFFFFFFF);
- rv = FPDF_RenderPageBitmap_Start(
- progressive_paints_[progressive_index].bitmap,
- pages_[page_index]->GetPage(), start_x, start_y, size_x, size_y,
- current_rotation_,
- GetRenderingFlags(), static_cast<IFSDK_PAUSE*>(this));
- }
- return rv != FPDF_RENDER_TOBECOUNTINUED;
-}
-
-void PDFiumEngine::FinishPaint(int progressive_index,
- pp::ImageData* image_data) {
- int page_index = progressive_paints_[progressive_index].page_index;
- pp::Rect dirty_in_screen = progressive_paints_[progressive_index].rect;
- FPDF_BITMAP bitmap = progressive_paints_[progressive_index].bitmap;
- int start_x, start_y, size_x, size_y;
- GetPDFiumRect(
- page_index, dirty_in_screen, &start_x, &start_y, &size_x, &size_y);
-
- // Draw the forms.
- FPDF_FFLDraw(
- form_, bitmap, pages_[page_index]->GetPage(), start_x, start_y, size_x,
- size_y, current_rotation_, GetRenderingFlags());
-
- FillPageSides(progressive_index);
-
- // Paint the page shadows.
- PaintPageShadow(progressive_index, image_data);
-
- DrawSelections(progressive_index, image_data);
-
- FPDF_RenderPage_Close(pages_[page_index]->GetPage());
- FPDFBitmap_Destroy(bitmap);
- progressive_paints_.erase(progressive_paints_.begin() + progressive_index);
-
- client_->DocumentPaintOccurred();
-}
-
-void PDFiumEngine::CancelPaints() {
- for (size_t i = 0; i < progressive_paints_.size(); ++i) {
- FPDF_RenderPage_Close(pages_[progressive_paints_[i].page_index]->GetPage());
- FPDFBitmap_Destroy(progressive_paints_[i].bitmap);
- }
- progressive_paints_.clear();
-}
-
-void PDFiumEngine::FillPageSides(int progressive_index) {
- int page_index = progressive_paints_[progressive_index].page_index;
- pp::Rect dirty_in_screen = progressive_paints_[progressive_index].rect;
- FPDF_BITMAP bitmap = progressive_paints_[progressive_index].bitmap;
-
- pp::Rect page_rect = pages_[page_index]->rect();
- if (page_rect.x() > 0) {
- pp::Rect left(0,
- page_rect.y() - kPageShadowTop,
- page_rect.x() - kPageShadowLeft,
- page_rect.height() + kPageShadowTop +
- kPageShadowBottom + kPageSeparatorThickness);
- left = GetScreenRect(left).Intersect(dirty_in_screen);
-
- FPDFBitmap_FillRect(bitmap, left.x() - dirty_in_screen.x(),
- left.y() - dirty_in_screen.y(), left.width(),
- left.height(), kBackgroundColor);
- }
-
- if (page_rect.right() < document_size_.width()) {
- pp::Rect right(page_rect.right() + kPageShadowRight,
- page_rect.y() - kPageShadowTop,
- document_size_.width() - page_rect.right() -
- kPageShadowRight,
- page_rect.height() + kPageShadowTop +
- kPageShadowBottom + kPageSeparatorThickness);
- right = GetScreenRect(right).Intersect(dirty_in_screen);
-
- FPDFBitmap_FillRect(bitmap, right.x() - dirty_in_screen.x(),
- right.y() - dirty_in_screen.y(), right.width(),
- right.height(), kBackgroundColor);
- }
-
- // Paint separator.
- pp::Rect bottom(page_rect.x() - kPageShadowLeft,
- page_rect.bottom() + kPageShadowBottom,
- page_rect.width() + kPageShadowLeft + kPageShadowRight,
- kPageSeparatorThickness);
- bottom = GetScreenRect(bottom).Intersect(dirty_in_screen);
-
- FPDFBitmap_FillRect(bitmap, bottom.x() - dirty_in_screen.x(),
- bottom.y() - dirty_in_screen.y(), bottom.width(),
- bottom.height(), kBackgroundColor);
-}
-
-void PDFiumEngine::PaintPageShadow(int progressive_index,
- pp::ImageData* image_data) {
- int page_index = progressive_paints_[progressive_index].page_index;
- pp::Rect dirty_in_screen = progressive_paints_[progressive_index].rect;
- pp::Rect page_rect = pages_[page_index]->rect();
- pp::Rect shadow_rect(page_rect);
- shadow_rect.Inset(-kPageShadowLeft, -kPageShadowTop,
- -kPageShadowRight, -kPageShadowBottom);
-
- // Due to the rounding errors of the GetScreenRect it is possible to get
- // different size shadows on the left and right sides even they are defined
- // the same. To fix this issue let's calculate shadow rect and then shrink
- // it by the size of the shadows.
- shadow_rect = GetScreenRect(shadow_rect);
- page_rect = shadow_rect;
-
- page_rect.Inset(static_cast<int>(ceil(kPageShadowLeft * current_zoom_)),
- static_cast<int>(ceil(kPageShadowTop * current_zoom_)),
- static_cast<int>(ceil(kPageShadowRight * current_zoom_)),
- static_cast<int>(ceil(kPageShadowBottom * current_zoom_)));
-
- DrawPageShadow(page_rect, shadow_rect, dirty_in_screen, image_data);
-}
-
-void PDFiumEngine::DrawSelections(int progressive_index,
- pp::ImageData* image_data) {
- int page_index = progressive_paints_[progressive_index].page_index;
- pp::Rect dirty_in_screen = progressive_paints_[progressive_index].rect;
-
- void* region = NULL;
- int stride;
- GetRegion(dirty_in_screen.point(), image_data, ®ion, &stride);
-
- std::vector<pp::Rect> highlighted_rects;
- pp::Rect visible_rect = GetVisibleRect();
- for (size_t k = 0; k < selection_.size(); ++k) {
- if (selection_[k].page_index() != page_index)
- continue;
- std::vector<pp::Rect> rects = selection_[k].GetScreenRects(
- visible_rect.point(), current_zoom_, current_rotation_);
- for (size_t j = 0; j < rects.size(); ++j) {
- pp::Rect visible_selection = rects[j].Intersect(dirty_in_screen);
- if (visible_selection.IsEmpty())
- continue;
-
- visible_selection.Offset(
- -dirty_in_screen.point().x(), -dirty_in_screen.point().y());
- Highlight(region, stride, visible_selection, &highlighted_rects);
- }
- }
-
- for (size_t k = 0; k < form_highlights_.size(); ++k) {
- pp::Rect visible_selection = form_highlights_[k].Intersect(dirty_in_screen);
- if (visible_selection.IsEmpty())
- continue;
-
- visible_selection.Offset(
- -dirty_in_screen.point().x(), -dirty_in_screen.point().y());
- Highlight(region, stride, visible_selection, &highlighted_rects);
- }
- form_highlights_.clear();
-}
-
-void PDFiumEngine::PaintUnavailablePage(int page_index,
- const pp::Rect& dirty,
- pp::ImageData* image_data) {
- int start_x, start_y, size_x, size_y;
- GetPDFiumRect(page_index, dirty, &start_x, &start_y, &size_x, &size_y);
- FPDF_BITMAP bitmap = CreateBitmap(dirty, image_data);
- FPDFBitmap_FillRect(bitmap, start_x, start_y, size_x, size_y,
- kPendingPageColor);
-
- pp::Rect loading_text_in_screen(
- pages_[page_index]->rect().width() / 2,
- pages_[page_index]->rect().y() + kLoadingTextVerticalOffset, 0, 0);
- loading_text_in_screen = GetScreenRect(loading_text_in_screen);
- FPDFBitmap_Destroy(bitmap);
-}
-
-int PDFiumEngine::GetProgressiveIndex(int page_index) const {
- for (size_t i = 0; i < progressive_paints_.size(); ++i) {
- if (progressive_paints_[i].page_index == page_index)
- return i;
- }
- return -1;
-}
-
-FPDF_BITMAP PDFiumEngine::CreateBitmap(const pp::Rect& rect,
- pp::ImageData* image_data) const {
- void* region;
- int stride;
- GetRegion(rect.point(), image_data, ®ion, &stride);
- if (!region)
- return NULL;
- return FPDFBitmap_CreateEx(
- rect.width(), rect.height(), FPDFBitmap_BGRx, region, stride);
-}
-
-void PDFiumEngine::GetPDFiumRect(
- int page_index, const pp::Rect& rect, int* start_x, int* start_y,
- int* size_x, int* size_y) const {
- pp::Rect page_rect = GetScreenRect(pages_[page_index]->rect());
- page_rect.Offset(-rect.x(), -rect.y());
-
- *start_x = page_rect.x();
- *start_y = page_rect.y();
- *size_x = page_rect.width();
- *size_y = page_rect.height();
-}
-
-int PDFiumEngine::GetRenderingFlags() const {
- int flags = FPDF_LCD_TEXT | FPDF_NO_CATCH;
- if (render_grayscale_)
- flags |= FPDF_GRAYSCALE;
- if (client_->IsPrintPreview())
- flags |= FPDF_PRINTING;
- return flags;
-}
-
-pp::Rect PDFiumEngine::GetVisibleRect() const {
- pp::Rect rv;
- rv.set_x(static_cast<int>(position_.x() / current_zoom_));
- rv.set_y(static_cast<int>(position_.y() / current_zoom_));
- rv.set_width(static_cast<int>(ceil(plugin_size_.width() / current_zoom_)));
- rv.set_height(static_cast<int>(ceil(plugin_size_.height() / current_zoom_)));
- return rv;
-}
-
-pp::Rect PDFiumEngine::GetPageScreenRect(int page_index) const {
- // Since we use this rect for creating the PDFium bitmap, also include other
- // areas around the page that we might need to update such as the page
- // separator and the sides if the page is narrower than the document.
- return GetScreenRect(pp::Rect(
- 0,
- pages_[page_index]->rect().y() - kPageShadowTop,
- document_size_.width(),
- pages_[page_index]->rect().height() + kPageShadowTop +
- kPageShadowBottom + kPageSeparatorThickness));
-}
-
-pp::Rect PDFiumEngine::GetScreenRect(const pp::Rect& rect) const {
- pp::Rect rv;
- int right =
- static_cast<int>(ceil(rect.right() * current_zoom_ - position_.x()));
- int bottom =
- static_cast<int>(ceil(rect.bottom() * current_zoom_ - position_.y()));
-
- rv.set_x(static_cast<int>(rect.x() * current_zoom_ - position_.x()));
- rv.set_y(static_cast<int>(rect.y() * current_zoom_ - position_.y()));
- rv.set_width(right - rv.x());
- rv.set_height(bottom - rv.y());
- return rv;
-}
-
-void PDFiumEngine::Highlight(void* buffer,
- int stride,
- const pp::Rect& rect,
- std::vector<pp::Rect>* highlighted_rects) {
- if (!buffer)
- return;
-
- pp::Rect new_rect = rect;
- for (size_t i = 0; i < highlighted_rects->size(); ++i)
- new_rect = new_rect.Subtract((*highlighted_rects)[i]);
-
- highlighted_rects->push_back(new_rect);
- int l = new_rect.x();
- int t = new_rect.y();
- int w = new_rect.width();
- int h = new_rect.height();
-
- for (int y = t; y < t + h; ++y) {
- for (int x = l; x < l + w; ++x) {
- uint8* pixel = static_cast<uint8*>(buffer) + y * stride + x * 4;
- // This is our highlight color.
- pixel[0] = static_cast<uint8>(
- pixel[0] * (kHighlightColorB / 255.0));
- pixel[1] = static_cast<uint8>(
- pixel[1] * (kHighlightColorG / 255.0));
- pixel[2] = static_cast<uint8>(
- pixel[2] * (kHighlightColorR / 255.0));
- }
- }
-}
-
-PDFiumEngine::SelectionChangeInvalidator::SelectionChangeInvalidator(
- PDFiumEngine* engine) : engine_(engine) {
- previous_origin_ = engine_->GetVisibleRect().point();
- GetVisibleSelectionsScreenRects(&old_selections_);
-}
-
-PDFiumEngine::SelectionChangeInvalidator::~SelectionChangeInvalidator() {
- // Offset the old selections if the document scrolled since we recorded them.
- pp::Point offset = previous_origin_ - engine_->GetVisibleRect().point();
- for (size_t i = 0; i < old_selections_.size(); ++i)
- old_selections_[i].Offset(offset);
-
- std::vector<pp::Rect> new_selections;
- GetVisibleSelectionsScreenRects(&new_selections);
- for (size_t i = 0; i < new_selections.size(); ++i) {
- for (size_t j = 0; j < old_selections_.size(); ++j) {
- if (!old_selections_[j].IsEmpty() &&
- new_selections[i] == old_selections_[j]) {
- // Rectangle was selected before and after, so no need to invalidate it.
- // Mark the rectangles by setting them to empty.
- new_selections[i] = old_selections_[j] = pp::Rect();
- break;
- }
- }
- }
-
- for (size_t i = 0; i < old_selections_.size(); ++i) {
- if (!old_selections_[i].IsEmpty())
- engine_->client_->Invalidate(old_selections_[i]);
- }
- for (size_t i = 0; i < new_selections.size(); ++i) {
- if (!new_selections[i].IsEmpty())
- engine_->client_->Invalidate(new_selections[i]);
- }
- engine_->OnSelectionChanged();
-}
-
-void
-PDFiumEngine::SelectionChangeInvalidator::GetVisibleSelectionsScreenRects(
- std::vector<pp::Rect>* rects) {
- pp::Rect visible_rect = engine_->GetVisibleRect();
- for (size_t i = 0; i < engine_->selection_.size(); ++i) {
- int page_index = engine_->selection_[i].page_index();
- if (!engine_->IsPageVisible(page_index))
- continue; // This selection is on a page that's not currently visible.
-
- std::vector<pp::Rect> selection_rects =
- engine_->selection_[i].GetScreenRects(
- visible_rect.point(),
- engine_->current_zoom_,
- engine_->current_rotation_);
- rects->insert(rects->end(), selection_rects.begin(), selection_rects.end());
- }
-}
-
-PDFiumEngine::MouseDownState::MouseDownState(
- const PDFiumPage::Area& area,
- const PDFiumPage::LinkTarget& target)
- : area_(area), target_(target) {
-}
-
-PDFiumEngine::MouseDownState::~MouseDownState() {
-}
-
-void PDFiumEngine::MouseDownState::Set(const PDFiumPage::Area& area,
- const PDFiumPage::LinkTarget& target) {
- area_ = area;
- target_ = target;
-}
-
-void PDFiumEngine::MouseDownState::Reset() {
- area_ = PDFiumPage::NONSELECTABLE_AREA;
- target_ = PDFiumPage::LinkTarget();
-}
-
-bool PDFiumEngine::MouseDownState::Matches(
- const PDFiumPage::Area& area,
- const PDFiumPage::LinkTarget& target) const {
- if (area_ == area) {
- if (area == PDFiumPage::WEBLINK_AREA)
- return target_.url == target.url;
- if (area == PDFiumPage::DOCLINK_AREA)
- return target_.page == target.page;
- return true;
- }
- return false;
-}
-
-void PDFiumEngine::DeviceToPage(int page_index,
- float device_x,
- float device_y,
- double* page_x,
- double* page_y) {
- *page_x = *page_y = 0;
- int temp_x = static_cast<int>((device_x + position_.x())/ current_zoom_ -
- pages_[page_index]->rect().x());
- int temp_y = static_cast<int>((device_y + position_.y())/ current_zoom_ -
- pages_[page_index]->rect().y());
- FPDF_DeviceToPage(
- pages_[page_index]->GetPage(), 0, 0,
- pages_[page_index]->rect().width(), pages_[page_index]->rect().height(),
- current_rotation_, temp_x, temp_y, page_x, page_y);
-}
-
-int PDFiumEngine::GetVisiblePageIndex(FPDF_PAGE page) {
- for (size_t i = 0; i < visible_pages_.size(); ++i) {
- if (pages_[visible_pages_[i]]->GetPage() == page)
- return visible_pages_[i];
- }
- return -1;
-}
-
-void PDFiumEngine::SetCurrentPage(int index) {
- if (index == most_visible_page_ || !form_)
- return;
- if (most_visible_page_ != -1 && called_do_document_action_) {
- FPDF_PAGE old_page = pages_[most_visible_page_]->GetPage();
- FORM_DoPageAAction(old_page, form_, FPDFPAGE_AACTION_CLOSE);
- }
- most_visible_page_ = index;
-#if defined(OS_LINUX)
- g_last_instance_id = client_->GetPluginInstance()->pp_instance();
-#endif
- if (most_visible_page_ != -1 && called_do_document_action_) {
- FPDF_PAGE new_page = pages_[most_visible_page_]->GetPage();
- FORM_DoPageAAction(new_page, form_, FPDFPAGE_AACTION_OPEN);
- }
-}
-
-void PDFiumEngine::TransformPDFPageForPrinting(
- FPDF_PAGE page,
- const PP_PrintSettings_Dev& print_settings) {
- // Get the source page width and height in points.
- const double src_page_width = FPDF_GetPageWidth(page);
- const double src_page_height = FPDF_GetPageHeight(page);
-
- const int src_page_rotation = FPDFPage_GetRotation(page);
- const bool fit_to_page = print_settings.print_scaling_option ==
- PP_PRINTSCALINGOPTION_FIT_TO_PRINTABLE_AREA;
-
- pp::Size page_size(print_settings.paper_size);
- pp::Rect content_rect(print_settings.printable_area);
- const bool rotated = (src_page_rotation % 2 == 1);
- SetPageSizeAndContentRect(rotated,
- src_page_width > src_page_height,
- &page_size,
- &content_rect);
-
- // Compute the screen page width and height in points.
- const int actual_page_width =
- rotated ? page_size.height() : page_size.width();
- const int actual_page_height =
- rotated ? page_size.width() : page_size.height();
-
- const double scale_factor = CalculateScaleFactor(fit_to_page, content_rect,
- src_page_width,
- src_page_height, rotated);
-
- // Calculate positions for the clip box.
- ClipBox source_clip_box;
- CalculateClipBoxBoundary(page, scale_factor, rotated, &source_clip_box);
-
- // Calculate the translation offset values.
- double offset_x = 0;
- double offset_y = 0;
- if (fit_to_page) {
- CalculateScaledClipBoxOffset(content_rect, source_clip_box, &offset_x,
- &offset_y);
- } else {
- CalculateNonScaledClipBoxOffset(content_rect, src_page_rotation,
- actual_page_width, actual_page_height,
- source_clip_box, &offset_x, &offset_y);
- }
-
- // Reset the media box and crop box. When the page has crop box and media box,
- // the plugin will display the crop box contents and not the entire media box.
- // If the pages have different crop box values, the plugin will display a
- // document of multiple page sizes. To give better user experience, we
- // decided to have same crop box and media box values. Hence, the user will
- // see a list of uniform pages.
- FPDFPage_SetMediaBox(page, 0, 0, page_size.width(), page_size.height());
- FPDFPage_SetCropBox(page, 0, 0, page_size.width(), page_size.height());
-
- // Transformation is not required, return. Do this check only after updating
- // the media box and crop box. For more detailed information, please refer to
- // the comment block right before FPDF_SetMediaBox and FPDF_GetMediaBox calls.
- if (scale_factor == 1.0 && offset_x == 0 && offset_y == 0)
- return;
-
-
- // All the positions have been calculated, now manipulate the PDF.
- FS_MATRIX matrix = {static_cast<float>(scale_factor),
- 0,
- 0,
- static_cast<float>(scale_factor),
- static_cast<float>(offset_x),
- static_cast<float>(offset_y)};
- FS_RECTF cliprect = {static_cast<float>(source_clip_box.left+offset_x),
- static_cast<float>(source_clip_box.top+offset_y),
- static_cast<float>(source_clip_box.right+offset_x),
- static_cast<float>(source_clip_box.bottom+offset_y)};
- FPDFPage_TransFormWithClip(page, &matrix, &cliprect);
- FPDFPage_TransformAnnots(page, scale_factor, 0, 0, scale_factor,
- offset_x, offset_y);
-}
-
-void PDFiumEngine::DrawPageShadow(const pp::Rect& page_rc,
- const pp::Rect& shadow_rc,
- const pp::Rect& clip_rc,
- pp::ImageData* image_data) {
- pp::Rect page_rect(page_rc);
- page_rect.Offset(page_offset_);
-
- pp::Rect shadow_rect(shadow_rc);
- shadow_rect.Offset(page_offset_);
-
- pp::Rect clip_rect(clip_rc);
- clip_rect.Offset(page_offset_);
-
- // Page drop shadow parameters.
- const double factor = 0.5;
- uint32 depth = std::max(
- std::max(page_rect.x() - shadow_rect.x(),
- page_rect.y() - shadow_rect.y()),
- std::max(shadow_rect.right() - page_rect.right(),
- shadow_rect.bottom() - page_rect.bottom()));
- depth = static_cast<uint32>(depth * 1.5) + 1;
-
- // We need to check depth only to verify our copy of shadow matrix is correct.
- if (!page_shadow_.get() || page_shadow_->depth() != depth)
- page_shadow_.reset(new ShadowMatrix(depth, factor, kBackgroundColor));
-
- DCHECK(!image_data->is_null());
- DrawShadow(image_data, shadow_rect, page_rect, clip_rect, *page_shadow_);
-}
-
-void PDFiumEngine::GetRegion(const pp::Point& location,
- pp::ImageData* image_data,
- void** region,
- int* stride) const {
- if (image_data->is_null()) {
- DCHECK(plugin_size_.IsEmpty());
- *stride = 0;
- *region = NULL;
- return;
- }
- char* buffer = static_cast<char*>(image_data->data());
- *stride = image_data->stride();
-
- pp::Point offset_location = location + page_offset_;
- // TODO: update this when we support BIDI and scrollbars can be on the left.
- if (!buffer ||
- !pp::Rect(page_offset_, plugin_size_).Contains(offset_location)) {
- *region = NULL;
- return;
- }
-
- buffer += location.y() * (*stride);
- buffer += (location.x() + page_offset_.x()) * 4;
- *region = buffer;
-}
-
-void PDFiumEngine::OnSelectionChanged() {
- if (HasPermission(PDFEngine::PERMISSION_COPY))
- pp::PDF::SetSelectedText(GetPluginInstance(), GetSelectedText().c_str());
-}
-
-void PDFiumEngine::Form_Invalidate(FPDF_FORMFILLINFO* param,
- FPDF_PAGE page,
- double left,
- double top,
- double right,
- double bottom) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- int page_index = engine->GetVisiblePageIndex(page);
- if (page_index == -1) {
- // This can sometime happen when the page is closed because it went off
- // screen, and PDFium invalidates the control as it's being deleted.
- return;
- }
-
- pp::Rect rect = engine->pages_[page_index]->PageToScreen(
- engine->GetVisibleRect().point(), engine->current_zoom_, left, top, right,
- bottom, engine->current_rotation_);
- engine->client_->Invalidate(rect);
-}
-
-void PDFiumEngine::Form_OutputSelectedRect(FPDF_FORMFILLINFO* param,
- FPDF_PAGE page,
- double left,
- double top,
- double right,
- double bottom) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- int page_index = engine->GetVisiblePageIndex(page);
- if (page_index == -1) {
- NOTREACHED();
- return;
- }
- pp::Rect rect = engine->pages_[page_index]->PageToScreen(
- engine->GetVisibleRect().point(), engine->current_zoom_, left, top, right,
- bottom, engine->current_rotation_);
- engine->form_highlights_.push_back(rect);
-}
-
-void PDFiumEngine::Form_SetCursor(FPDF_FORMFILLINFO* param, int cursor_type) {
- // We don't need this since it's not enough to change the cursor in all
- // scenarios. Instead, we check which form field we're under in OnMouseMove.
-}
-
-int PDFiumEngine::Form_SetTimer(FPDF_FORMFILLINFO* param,
- int elapse,
- TimerCallback timer_func) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- engine->timers_[++engine->next_timer_id_] =
- std::pair<int, TimerCallback>(elapse, timer_func);
- engine->client_->ScheduleCallback(engine->next_timer_id_, elapse);
- return engine->next_timer_id_;
-}
-
-void PDFiumEngine::Form_KillTimer(FPDF_FORMFILLINFO* param, int timer_id) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- engine->timers_.erase(timer_id);
-}
-
-FPDF_SYSTEMTIME PDFiumEngine::Form_GetLocalTime(FPDF_FORMFILLINFO* param) {
- base::Time time = base::Time::Now();
- base::Time::Exploded exploded;
- time.LocalExplode(&exploded);
-
- FPDF_SYSTEMTIME rv;
- rv.wYear = exploded.year;
- rv.wMonth = exploded.month;
- rv.wDayOfWeek = exploded.day_of_week;
- rv.wDay = exploded.day_of_month;
- rv.wHour = exploded.hour;
- rv.wMinute = exploded.minute;
- rv.wSecond = exploded.second;
- rv.wMilliseconds = exploded.millisecond;
- return rv;
-}
-
-void PDFiumEngine::Form_OnChange(FPDF_FORMFILLINFO* param) {
- // Don't care about.
-}
-
-FPDF_PAGE PDFiumEngine::Form_GetPage(FPDF_FORMFILLINFO* param,
- FPDF_DOCUMENT document,
- int page_index) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- if (page_index < 0 || page_index >= static_cast<int>(engine->pages_.size()))
- return NULL;
- return engine->pages_[page_index]->GetPage();
-}
-
-FPDF_PAGE PDFiumEngine::Form_GetCurrentPage(FPDF_FORMFILLINFO* param,
- FPDF_DOCUMENT document) {
- // TODO(jam): find out what this is used for.
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- int index = engine->last_page_mouse_down_;
- if (index == -1) {
- index = engine->GetMostVisiblePage();
- if (index == -1) {
- NOTREACHED();
- return NULL;
- }
- }
-
- return engine->pages_[index]->GetPage();
-}
-
-int PDFiumEngine::Form_GetRotation(FPDF_FORMFILLINFO* param, FPDF_PAGE page) {
- return 0;
-}
-
-void PDFiumEngine::Form_ExecuteNamedAction(FPDF_FORMFILLINFO* param,
- FPDF_BYTESTRING named_action) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- std::string action(named_action);
- if (action == "Print") {
- engine->client_->Print();
- return;
- }
-
- int index = engine->last_page_mouse_down_;
- /* Don't try to calculate the most visible page if we don't have a left click
- before this event (this code originally copied Form_GetCurrentPage which of
- course needs to do that and which doesn't have recursion). This can end up
- causing infinite recursion. See http://crbug.com/240413 for more
- information. Either way, it's not necessary for the spec'd list of named
- actions.
- if (index == -1)
- index = engine->GetMostVisiblePage();
- */
- if (index == -1)
- return;
-
- // This is the only list of named actions per the spec (see 12.6.4.11). Adobe
- // Reader supports more, like FitWidth, but since they're not part of the spec
- // and we haven't got bugs about them, no need to now.
- if (action == "NextPage") {
- engine->client_->ScrollToPage(index + 1);
- } else if (action == "PrevPage") {
- engine->client_->ScrollToPage(index - 1);
- } else if (action == "FirstPage") {
- engine->client_->ScrollToPage(0);
- } else if (action == "LastPage") {
- engine->client_->ScrollToPage(engine->pages_.size() - 1);
- }
-}
-
-void PDFiumEngine::Form_SetTextFieldFocus(FPDF_FORMFILLINFO* param,
- FPDF_WIDESTRING value,
- FPDF_DWORD valueLen,
- FPDF_BOOL is_focus) {
- // Do nothing for now.
- // TODO(gene): use this signal to trigger OSK.
-}
-
-void PDFiumEngine::Form_DoURIAction(FPDF_FORMFILLINFO* param,
- FPDF_BYTESTRING uri) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- engine->client_->NavigateTo(std::string(uri), false);
-}
-
-void PDFiumEngine::Form_DoGoToAction(FPDF_FORMFILLINFO* param,
- int page_index,
- int zoom_mode,
- float* position_array,
- int size_of_array) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- engine->client_->ScrollToPage(page_index);
-}
-
-int PDFiumEngine::Form_Alert(IPDF_JSPLATFORM* param,
- FPDF_WIDESTRING message,
- FPDF_WIDESTRING title,
- int type,
- int icon) {
- // See fpdfformfill.h for these values.
- enum AlertType {
- ALERT_TYPE_OK = 0,
- ALERT_TYPE_OK_CANCEL,
- ALERT_TYPE_YES_ON,
- ALERT_TYPE_YES_NO_CANCEL
- };
-
- enum AlertResult {
- ALERT_RESULT_OK = 1,
- ALERT_RESULT_CANCEL,
- ALERT_RESULT_NO,
- ALERT_RESULT_YES
- };
-
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- std::string message_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(message));
- if (type == ALERT_TYPE_OK) {
- engine->client_->Alert(message_str);
- return ALERT_RESULT_OK;
- }
-
- bool rv = engine->client_->Confirm(message_str);
- if (type == ALERT_TYPE_OK_CANCEL)
- return rv ? ALERT_RESULT_OK : ALERT_RESULT_CANCEL;
- return rv ? ALERT_RESULT_YES : ALERT_RESULT_NO;
-}
-
-void PDFiumEngine::Form_Beep(IPDF_JSPLATFORM* param, int type) {
- // Beeps are annoying, and not possible using javascript, so ignore for now.
-}
-
-int PDFiumEngine::Form_Response(IPDF_JSPLATFORM* param,
- FPDF_WIDESTRING question,
- FPDF_WIDESTRING title,
- FPDF_WIDESTRING default_response,
- FPDF_WIDESTRING label,
- FPDF_BOOL password,
- void* response,
- int length) {
- std::string question_str = base::UTF16ToUTF8(
- reinterpret_cast<const base::char16*>(question));
- std::string default_str = base::UTF16ToUTF8(
- reinterpret_cast<const base::char16*>(default_response));
-
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- std::string rv = engine->client_->Prompt(question_str, default_str);
- base::string16 rv_16 = base::UTF8ToUTF16(rv);
- int rv_bytes = rv_16.size() * sizeof(base::char16);
- if (response) {
- int bytes_to_copy = rv_bytes < length ? rv_bytes : length;
- memcpy(response, rv_16.c_str(), bytes_to_copy);
- }
- return rv_bytes;
-}
-
-int PDFiumEngine::Form_GetFilePath(IPDF_JSPLATFORM* param,
- void* file_path,
- int length) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- std::string rv = engine->client_->GetURL();
- if (file_path && rv.size() <= static_cast<size_t>(length))
- memcpy(file_path, rv.c_str(), rv.size());
- return rv.size();
-}
-
-void PDFiumEngine::Form_Mail(IPDF_JSPLATFORM* param,
- void* mail_data,
- int length,
- FPDF_BOOL ui,
- FPDF_WIDESTRING to,
- FPDF_WIDESTRING subject,
- FPDF_WIDESTRING cc,
- FPDF_WIDESTRING bcc,
- FPDF_WIDESTRING message) {
- DCHECK(length == 0); // Don't handle attachments; no way with mailto.
- std::string to_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(to));
- std::string cc_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(cc));
- std::string bcc_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(bcc));
- std::string subject_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(subject));
- std::string message_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(message));
-
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- engine->client_->Email(to_str, cc_str, bcc_str, subject_str, message_str);
-}
-
-void PDFiumEngine::Form_Print(IPDF_JSPLATFORM* param,
- FPDF_BOOL ui,
- int start,
- int end,
- FPDF_BOOL silent,
- FPDF_BOOL shrink_to_fit,
- FPDF_BOOL print_as_image,
- FPDF_BOOL reverse,
- FPDF_BOOL annotations) {
- // No way to pass the extra information to the print dialog using JavaScript.
- // Just opening it is fine for now.
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- engine->client_->Print();
-}
-
-void PDFiumEngine::Form_SubmitForm(IPDF_JSPLATFORM* param,
- void* form_data,
- int length,
- FPDF_WIDESTRING url) {
- std::string url_str =
- base::UTF16ToUTF8(reinterpret_cast<const base::char16*>(url));
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- engine->client_->SubmitForm(url_str, form_data, length);
-}
-
-void PDFiumEngine::Form_GotoPage(IPDF_JSPLATFORM* param,
- int page_number) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- engine->client_->ScrollToPage(page_number);
-}
-
-int PDFiumEngine::Form_Browse(IPDF_JSPLATFORM* param,
- void* file_path,
- int length) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- std::string path = engine->client_->ShowFileSelectionDialog();
- if (path.size() + 1 <= static_cast<size_t>(length))
- memcpy(file_path, &path[0], path.size() + 1);
- return path.size() + 1;
-}
-
-FPDF_BOOL PDFiumEngine::Pause_NeedToPauseNow(IFSDK_PAUSE* param) {
- PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
- return (base::Time::Now() - engine->last_progressive_start_time_).
- InMilliseconds() > engine->progressive_paint_timeout_;
-}
-
-ScopedUnsupportedFeature::ScopedUnsupportedFeature(PDFiumEngine* engine)
- : engine_(engine), old_engine_(g_engine_for_unsupported) {
- g_engine_for_unsupported = engine_;
-}
-
-ScopedUnsupportedFeature::~ScopedUnsupportedFeature() {
- g_engine_for_unsupported = old_engine_;
-}
-
-PDFEngineExports* PDFEngineExports::Create() {
- return new PDFiumEngineExports;
-}
-
-namespace {
-
-int CalculatePosition(FPDF_PAGE page,
- const PDFiumEngineExports::RenderingSettings& settings,
- pp::Rect* dest) {
- int page_width = static_cast<int>(
- FPDF_GetPageWidth(page) * settings.dpi_x / kPointsPerInch);
- int page_height = static_cast<int>(
- FPDF_GetPageHeight(page) * settings.dpi_y / kPointsPerInch);
-
- // Start by assuming that we will draw exactly to the bounds rect
- // specified.
- *dest = settings.bounds;
-
- int rotate = 0; // normal orientation.
-
- // Auto-rotate landscape pages to print correctly.
- if (settings.autorotate &&
- (dest->width() > dest->height()) != (page_width > page_height)) {
- rotate = 3; // 90 degrees counter-clockwise.
- std::swap(page_width, page_height);
- }
-
- // See if we need to scale the output
- bool scale_to_bounds = false;
- if (settings.fit_to_bounds &&
- ((page_width > dest->width()) || (page_height > dest->height()))) {
- scale_to_bounds = true;
- } else if (settings.stretch_to_bounds &&
- ((page_width < dest->width()) || (page_height < dest->height()))) {
- scale_to_bounds = true;
- }
-
- if (scale_to_bounds) {
- // If we need to maintain aspect ratio, calculate the actual width and
- // height.
- if (settings.keep_aspect_ratio) {
- double scale_factor_x = page_width;
- scale_factor_x /= dest->width();
- double scale_factor_y = page_height;
- scale_factor_y /= dest->height();
- if (scale_factor_x > scale_factor_y) {
- dest->set_height(page_height / scale_factor_x);
- } else {
- dest->set_width(page_width / scale_factor_y);
- }
- }
- } else {
- // We are not scaling to bounds. Draw in the actual page size. If the
- // actual page size is larger than the bounds, the output will be
- // clipped.
- dest->set_width(page_width);
- dest->set_height(page_height);
- }
-
- if (settings.center_in_bounds) {
- pp::Point offset((settings.bounds.width() - dest->width()) / 2,
- (settings.bounds.height() - dest->height()) / 2);
- dest->Offset(offset);
- }
- return rotate;
-}
-
-} // namespace
-
-#if defined(OS_WIN)
-bool PDFiumEngineExports::RenderPDFPageToDC(const void* pdf_buffer,
- int buffer_size,
- int page_number,
- const RenderingSettings& settings,
- HDC dc) {
- FPDF_DOCUMENT doc = FPDF_LoadMemDocument(pdf_buffer, buffer_size, NULL);
- if (!doc)
- return false;
- FPDF_PAGE page = FPDF_LoadPage(doc, page_number);
- if (!page) {
- FPDF_CloseDocument(doc);
- return false;
- }
- RenderingSettings new_settings = settings;
- // calculate the page size
- if (new_settings.dpi_x == -1)
- new_settings.dpi_x = GetDeviceCaps(dc, LOGPIXELSX);
- if (new_settings.dpi_y == -1)
- new_settings.dpi_y = GetDeviceCaps(dc, LOGPIXELSY);
-
- pp::Rect dest;
- int rotate = CalculatePosition(page, new_settings, &dest);
-
- int save_state = SaveDC(dc);
- // The caller wanted all drawing to happen within the bounds specified.
- // Based on scale calculations, our destination rect might be larger
- // than the bounds. Set the clip rect to the bounds.
- IntersectClipRect(dc, settings.bounds.x(), settings.bounds.y(),
- settings.bounds.x() + settings.bounds.width(),
- settings.bounds.y() + settings.bounds.height());
-
- // A temporary hack. PDFs generated by Cairo (used by Chrome OS to generate
- // a PDF output from a webpage) result in very large metafiles and the
- // rendering using FPDF_RenderPage is incorrect. In this case, render as a
- // bitmap. Note that this code does not kick in for PDFs printed from Chrome
- // because in that case we create a temp PDF first before printing and this
- // temp PDF does not have a creator string that starts with "cairo".
- base::string16 creator;
- size_t buffer_bytes = FPDF_GetMetaText(doc, "Creator", NULL, 0);
- if (buffer_bytes > 1) {
- FPDF_GetMetaText(
- doc, "Creator", WriteInto(&creator, buffer_bytes + 1), buffer_bytes);
- }
- bool use_bitmap = false;
- if (StartsWith(creator, L"cairo", false))
- use_bitmap = true;
-
- // Another temporary hack. Some PDFs seems to render very slowly if
- // FPDF_RenderPage is directly used on a printer DC. I suspect it is
- // because of the code to talk Postscript directly to the printer if
- // the printer supports this. Need to discuss this with PDFium. For now,
- // render to a bitmap and then blit the bitmap to the DC if we have been
- // supplied a printer DC.
- int device_type = GetDeviceCaps(dc, TECHNOLOGY);
- if (use_bitmap ||
- (device_type == DT_RASPRINTER) || (device_type == DT_PLOTTER)) {
- FPDF_BITMAP bitmap = FPDFBitmap_Create(dest.width(), dest.height(),
- FPDFBitmap_BGRx);
- // Clear the bitmap
- FPDFBitmap_FillRect(bitmap, 0, 0, dest.width(), dest.height(), 0xFFFFFFFF);
- FPDF_RenderPageBitmap(
- bitmap, page, 0, 0, dest.width(), dest.height(), rotate,
- FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH);
- int stride = FPDFBitmap_GetStride(bitmap);
- BITMAPINFO bmi;
- memset(&bmi, 0, sizeof(bmi));
- bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
- bmi.bmiHeader.biWidth = dest.width();
- bmi.bmiHeader.biHeight = -dest.height(); // top-down image
- bmi.bmiHeader.biPlanes = 1;
- bmi.bmiHeader.biBitCount = 32;
- bmi.bmiHeader.biCompression = BI_RGB;
- bmi.bmiHeader.biSizeImage = stride * dest.height();
- StretchDIBits(dc, dest.x(), dest.y(), dest.width(), dest.height(),
- 0, 0, dest.width(), dest.height(),
- FPDFBitmap_GetBuffer(bitmap), &bmi, DIB_RGB_COLORS, SRCCOPY);
- FPDFBitmap_Destroy(bitmap);
- } else {
- FPDF_RenderPage(dc, page, dest.x(), dest.y(), dest.width(), dest.height(),
- rotate, FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH);
- }
- RestoreDC(dc, save_state);
- FPDF_ClosePage(page);
- FPDF_CloseDocument(doc);
- return true;
-}
-#endif // OS_WIN
-
-bool PDFiumEngineExports::RenderPDFPageToBitmap(
- const void* pdf_buffer,
- int pdf_buffer_size,
- int page_number,
- const RenderingSettings& settings,
- void* bitmap_buffer) {
- FPDF_DOCUMENT doc = FPDF_LoadMemDocument(pdf_buffer, pdf_buffer_size, NULL);
- if (!doc)
- return false;
- FPDF_PAGE page = FPDF_LoadPage(doc, page_number);
- if (!page) {
- FPDF_CloseDocument(doc);
- return false;
- }
-
- pp::Rect dest;
- int rotate = CalculatePosition(page, settings, &dest);
-
- FPDF_BITMAP bitmap =
- FPDFBitmap_CreateEx(settings.bounds.width(), settings.bounds.height(),
- FPDFBitmap_BGRA, bitmap_buffer,
- settings.bounds.width() * 4);
- // Clear the bitmap
- FPDFBitmap_FillRect(bitmap, 0, 0, settings.bounds.width(),
- settings.bounds.height(), 0xFFFFFFFF);
- // Shift top-left corner of bounds to (0, 0) if it's not there.
- dest.set_point(dest.point() - settings.bounds.point());
- FPDF_RenderPageBitmap(
- bitmap, page, dest.x(), dest.y(), dest.width(), dest.height(), rotate,
- FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH);
- FPDFBitmap_Destroy(bitmap);
- FPDF_ClosePage(page);
- FPDF_CloseDocument(doc);
- return true;
-}
-
-bool PDFiumEngineExports::GetPDFDocInfo(const void* pdf_buffer,
- int buffer_size,
- int* page_count,
- double* max_page_width) {
- FPDF_DOCUMENT doc = FPDF_LoadMemDocument(pdf_buffer, buffer_size, NULL);
- if (!doc)
- return false;
- int page_count_local = FPDF_GetPageCount(doc);
- if (page_count) {
- *page_count = page_count_local;
- }
- if (max_page_width) {
- *max_page_width = 0;
- for (int page_number = 0; page_number < page_count_local; page_number++) {
- double page_width = 0;
- double page_height = 0;
- FPDF_GetPageSizeByIndex(doc, page_number, &page_width, &page_height);
- if (page_width > *max_page_width) {
- *max_page_width = page_width;
- }
- }
- }
- FPDF_CloseDocument(doc);
- return true;
-}
-
-bool PDFiumEngineExports::GetPDFPageSizeByIndex(
- const void* pdf_buffer,
- int pdf_buffer_size,
- int page_number,
- double* width,
- double* height) {
- FPDF_DOCUMENT doc = FPDF_LoadMemDocument(pdf_buffer, pdf_buffer_size, NULL);
- if (!doc)
- return false;
- bool success = FPDF_GetPageSizeByIndex(doc, page_number, width, height) != 0;
- FPDF_CloseDocument(doc);
- return success;
-}
-
-} // namespace chrome_pdf
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