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authortonikitoo <tonikitoo@igalia.com>2016-08-26 08:37:10 -0700
committerCommit bot <commit-bot@chromium.org>2016-08-26 08:37:10 -0700
commit3e98158a6c47361ca7d6c2c18d47c9f8f3aabb8a (patch)
tree704926c3b5edbabde50fbee3aa1abceb8e180e72 /pdfium.gyp
parent9b57ec9ff50aeab53cf3f028222f69c78840385d (diff)
downloadpdfium-3e98158a6c47361ca7d6c2c18d47c9f8f3aabb8a.tar.xz
Extend pdfium_test capability so that more Javascript can be executedchromium/2841
In [1], the lack of support of pdfium_test to some application level hooks was felt. More specifically, the lack of implementation of the hook FFI_GetPage, called when 'this.getAnnot()' is executed in an Acrobar JS context, makes it non-trivial to JS texts that manipulate PDF annotations. [1] https://codereview.chromium.org/2265313002/ Here is the failing call stack in pdfium_test: 0 ::RenderPdf (samples/pdfium_test.cc) 1 ::FORM_DoDocumentOpenAction (fpdfsdk/fpdfformfill.cpp) 2 CPDFSDK_Document::ProcOpenAction (fpdfsdk/fsdk_mgr.cpp) 3 CPDFSDK_ActionHandler::DoAction_DocOpen (fpdfsdk/fsdk_actionhandler.cpp) <----v8----> 4 Document::getAnnot (fpdfsdk/javascript/Document.cpp) 5 CPDFSDK_Document::GetPageView (fpdfsdk/fsdk_mgr.cpp) 6 CPDFDoc_Environment::FFI_GetPage (fpdfsdk/include/fsdk_mgr.h) (frame 6 returns nullptr, and getAnnot call in frame 4 bails) CL extends pdfium_test app with a FFI_GetPage hook implementation. Basically what FFI_GetPage does is returning a FPDF_PAGE instance. In case of pdfium_test, FPDF_PAGE instances were only created on demand when the page was going to get rendered, and then discarded. Since FFI_GetPage can be called by JS before pages are rendered, CL moved the page creation code into a helper function, and cached the FPDF_PAGE instances created in a map, so it does not recreate them needlessly. BUG=pdfium:492 Review-Url: https://codereview.chromium.org/2277063003
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