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2017-05-18Break linkage from CPDFXA_DocEnvironment to IJS_EventContext.Tom Sepez
CPDFXFA_DocEnvionment is part of the heirarchy of objects owned by the embedder under its FPDF_Document object. IJS_EventContext is part of the hierarchy of objects owned by the embedder under its FPDF_FormHandle object. The FPDF_Document must outlive the FPDF_FormHandle, so there is a lifetime inversion with the m_pJSEventContext member. No matter, event contexts are transient and allocated in a stack-based manner as control bounces from C++ to JS and vice versa, and keeping a persistent one seems wrong. So make it only as needed. Bug: 723644 Change-Id: I74dd328ad4b501e4adf57821b44ecc78d945eb0f Reviewed-on: https://pdfium-review.googlesource.com/5656 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-16Introduce CFX_UnownedPtr to detect lifetime inversion issues.Tom Sepez
There are places where an object "child" has a raw pointer back to object "owner" with the understanding that owner will always outlive child. Violating this constraint can lead to use after free, but this requires finding two paths: one that frees the objects in the wrong order, and one that uses the object after the free. The purpose of this patch is to detect the constraint violation even when the second path is not hit. We create a template that is used in place of TYPE*. It's dtor, when a memory tool is present, goes out and probes the first byte of the object to which it points. Used in "child", this allows the memory tool to prove that the "owner" is still alive at the time the child is destroyed, and hence the constraint is never violated. Change-Id: I2a6d696d51dda4a79ee2f00a6752965e058a6417 Reviewed-on: https://pdfium-review.googlesource.com/5475 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-03-23Remove unused invalidate flagDan Sinclair
The flag passed to the DocEnvironment::InvalidateRect method is not used. Remove. Change-Id: I2a996e0bbf7f6a010c985bf4e9df0084dc0a7ea3 Reviewed-on: https://pdfium-review.googlesource.com/3154 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-03-14Replace FX_FLOAT with underlying float type.Dan Sinclair
Change-Id: I158b7d80b0ec28b742a9f2d5a96f3dde7fb3ab56 Reviewed-on: https://pdfium-review.googlesource.com/3031 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-02-16Rename IJS_Context to IJS_EventContext.Tom Sepez
Prevents confusion with v8::Context, which is wrapped by a different IJS_ class. Change-Id: Iff75809e65015c0f810294de1f0d8ecf963150a3 Reviewed-on: https://pdfium-review.googlesource.com/2751 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2016-12-07Refcount all the IFX_ stream classes all the time.tsepez
We can remove a lot of "bOwnsStream" logic in the process. Always pass these by const reference, in case the called method wants to hang on to the stream (one exception is where we stick a raw pointer into a void* slot in a context from another layer). Review-Url: https://codereview.chromium.org/2451493002
2016-11-21Fixup lint flags.Dan Sinclair
The -build/include setting was masking out build/include_what_you_use. This CL restores them, fixes any build errors, and adds NOLINT as needed. As well, the runtime/explicit and runtime/printf flags are aslo enabled and NOLINT'd. lint cleanups Change-Id: Ib013b3eb29c8d0e48cad74c5df9028684130719f Reviewed-on: https://pdfium-review.googlesource.com/2030 Reviewed-by: Tom Sepez <tsepez@chromium.org>
2016-11-02Remove FX_BOOL from fpdfsdk.tsepez
Review-Url: https://codereview.chromium.org/2453683011
2016-11-02Rename CPDFXFA_Document to CPDFXFA_Contextdsinclair
The CPDFXFA_Document class isn't a document, it contains documents. Renamed to make the purpose a bit clearer. Review-Url: https://codereview.chromium.org/2469813004
2016-10-24Rename IFX_ stream nameschromium/2900tsepez
It's been troubling for some time that an IFX_FileStream might actually be an in-memory buffer with no backing file. Review-Url: https://codereview.chromium.org/2443723002
2016-09-29Move xfa/fxfa/include to xfa/fxfadsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2383593002
2016-09-29Move fpdfsdk/fpdfxfa/include to fpdfsdk/fpdfxfadsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2381993002