diff options
Diffstat (limited to 'xfa_test/pdf/pdfium/pdfium_engine.cc')
| -rw-r--r-- | xfa_test/pdf/pdfium/pdfium_engine.cc | 3884 |
1 files changed, 3884 insertions, 0 deletions
diff --git a/xfa_test/pdf/pdfium/pdfium_engine.cc b/xfa_test/pdf/pdfium/pdfium_engine.cc new file mode 100644 index 0000000000..44e7052bf3 --- /dev/null +++ b/xfa_test/pdf/pdfium/pdfium_engine.cc @@ -0,0 +1,3884 @@ +// 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 pageCount = FPDF_GetPageCount(document);
+}
+
+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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