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2018-08-16Add a way to save a barcode generated bitmap to a .png.Henrique Nakashima
This is useful for debugging and validation purposes. The hashes that are in BarcodeTest are not necessarily for valid outputs. This CL refactors the code in embedder_test.png that already does this, moving it to testing/utils where unit tests can access it too. Bug: pdfium:1135 Change-Id: I6f1d70a4e133f8f04dbe52646087f99c448e95f8 Reviewed-on: https://pdfium-review.googlesource.com/40152 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-08-16Optimize rendering of two dimensional barcodes: deduplicate regions.Henrique Nakashima
Reduce the logical size of the barcode by removing unnecessary region duplication. As far as I can tell, the line thickness is useless and the aspect ratio causes arbitrary changes in rounding, but ultimately the dimensions of a barcode are defined by its width and height, rather than by this ratio. The improvement with this CL is from ~580ms to ~390ms per barcode, so about 1.5x. Combined with https://pdfium-review.googlesource.com/c/pdfium/+/40010 the improvement is to ~15ms, which is about 39x. This also fixes the rendering of the barcode in the pixel and corpus tests. You can verify this pointing a barcode reader app at the screen. It does not however fix every case, as the unit test is still unreadable. Bug: 872907, pdfium:1135 Change-Id: Ic28e60f54719552cfe69ace7ebc3f730c338a129 Reviewed-on: https://pdfium-review.googlesource.com/40030 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-08-16Do not set barcode module width and height in unittest.Henrique Nakashima
Setting these to anything outside of [1, 10] is non-op. Not sure why the test did that, but these lines have no effect. Bug: pdfium:1135 Change-Id: I175d07137674ab1b6b9c86b3bc68b4a128601b9f Reviewed-on: https://pdfium-review.googlesource.com/40250 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-08-15Remove optional prepend argument from matrix transformations.Tom Sepez
Callers always want one form or the other, so split into separate methods. This may save some branching. Remove forms that are not used. Put more helpful helper function in .cpp file. Change-Id: I4e025de7f69ce3f323cd290a5dc8202dd4f8ca07 Reviewed-on: https://pdfium-review.googlesource.com/40270 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-15Make CFX_MemoryStream always consecutive.chromium/3524Lei Zhang
Non-consecutive mode has questionable correctness and is not an obvious performance win. Change-Id: Idaa66e5ee5c4604628a0f55b67d5a04ab47ea5ec Reviewed-on: https://pdfium-review.googlesource.com/40050 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-14Remove CFX_BufferSeekableReadStream.Lei Zhang
Replace it with CFX_ReadOnlyMemoryStream, which does the same thing. Take some checks from CFX_BufferSeekableReadStream and add them CFX_ReadOnlyMemoryStream. Change-Id: I25554c3aec3ec96967f8df16ca68a64dba121b6f Reviewed-on: https://pdfium-review.googlesource.com/40070 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-14Remove more default arg = nullptr cases.Tom Sepez
Bring in line with standards. Remove argument entirely for mac code that is always nullptr. Change-Id: I0710bdbd51fc0bc2e1d428ef44976be39a631147 Reviewed-on: https://pdfium-review.googlesource.com/40091 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-14Remove |bTakeOver| parameter from CFX_MemoryStream ctor.Lei Zhang
It is always true now. BUG=pdfium:263 Change-Id: I74fd0091f5815701718e8cd5acc6e7a0de772a85 Reviewed-on: https://pdfium-review.googlesource.com/40031 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-13Make CFX_ReadOnlyMemoryStream take a span.Lei Zhang
Change-Id: Id097320ab2d9b5d1579582e5797e29c701499501 Reviewed-on: https://pdfium-review.googlesource.com/39991 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-08-13Use CFX_ReadOnlyMemoryStream in more places.Lei Zhang
More const pointers, less const_casts. BUG=pdfium:263 Change-Id: I47fc6d8f2f837390e40ad22d8b67946065294eaa Reviewed-on: https://pdfium-review.googlesource.com/39879 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-10Kill some optional parameters that are always supplied.Tom Sepez
No need to even bring any .cpp files in line with these headers. Change-Id: I934169d77ae09adc11f02e5ea92b1f8b078c9477 Reviewed-on: https://pdfium-review.googlesource.com/39876 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-10Remove const args and const_casts where not required.Tom Sepez
Introduce const/non-const versions of method where required. Part of the war on const_cast<>. Tidy one expression to use [] instead of .data(). Change-Id: I41e45669c79eee242ff2244c7dc3afcf6386a433 Reviewed-on: https://pdfium-review.googlesource.com/39852 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-08Move ByteString::FromUnicode() to WideString::ToDefANSI()Tom Sepez
Turns out that "FromUnicode" is misleading in that, on linux, it simply removes any characters beyond 0xFF and passes the rest unchanged, so no unicode decoding actually takes place. On Windows, it passes it into the system function specifying FX_CODEPAGE_DefANSI, converting it into the so-called "default ANSI code plane", passing some characters, converting others to '?' and still others to 'A'. Either way, nothing resembling UTF8 comes out of this, so pick a better name. These now immediately look suspicious, so a follow-up CL will see which ones should really be WideString::UTF8Encode() instead. Making this a normal method on a widestring rather than a static method on a bytestring feels more natural; this is parallel to the UTF8Encode and UTF16LE_Encode functions. Add a test that shows these conversions. Change-Id: Ia7551b47199eba61b5c328a97bfe9176ac8e583c Reviewed-on: https://pdfium-review.googlesource.com/39690 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-08Limit size of expression list in FormCalc parserchromium/3517Ryan Harrison
Limits the number of elements that can be added to the expressions list in the FormCalc parser. This handles cases like long strings of ! repeated, since ! is a valid identifier and identifiers are valid expression, even though it will be no-op. This is another case of something that is valid, but stupid. BUG=chromium:870385 Change-Id: I8e34ce00bcbe4499e0a45bd5dc38541793144481 Reviewed-on: https://pdfium-review.googlesource.com/39630 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-08-07Use wide string addition in place of some Format() calls.Tom Sepez
Simpler, faster, and avoids platform idiosyncracies of wprintf(). Change-Id: I91676bc38199ca2c30936094ca145239f915bc53 Reviewed-on: https://pdfium-review.googlesource.com/39610 Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-01Replace more unchecked casts with type conversion funtions.Tom Sepez
Change-Id: If3eb4396232daed28f2b63ffe1d110075c9299de Reviewed-on: https://pdfium-review.googlesource.com/39230 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-01Rename PageSetContainerLayoutItem to TraverseStrategy_PageSet.chromium/3509Tom Sepez
Provides consistency with the naming of other traverse strategies. Fix dubious casting inside the strategy. Change-Id: Ic96b1922ae1dc601a37c8c3b3dd0f118ab6b2eea Reviewed-on: https://pdfium-review.googlesource.com/39210 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-01Add a ScopedLocale for use within CXFA_LocaleValue.Lei Zhang
Add more checks for |m_pLocaleMgr| before dereferencing it. Change-Id: I39ab44d652364f5530266d2b724fa6703d1b51f1 Reviewed-on: https://pdfium-review.googlesource.com/39114 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-08-01Mark CFGAS_FormatString methods as const.Lei Zhang
Change-Id: I7809f2648d24b4ae0dd1a5a0d4fd98a0bd4d8939 Reviewed-on: https://pdfium-review.googlesource.com/39113 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-08-01Fix a nullptr crash in CXFA_LocaleValue::ValidateValue().Lei Zhang
Fix some nits as well. BUG=chromium:868271 Change-Id: Ia3231fde98c3e16e41b092a9833402cedc8e828d Reviewed-on: https://pdfium-review.googlesource.com/39112 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-07-31Remove CXFA_Corner downcasts from cxfa_rectangle.cppTom Sepez
We don't need anything that the parent class can't provide, so avoid dubious casting. Change-Id: I9f3d9735f3bfbcf005865772af31817c2b8addef Reviewed-on: https://pdfium-review.googlesource.com/39270 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-30Replace m_bIsContentLayoutItem with proper enum for type.Tom Sepez
Because bools are bogus. Change-Id: I54a2627443784cec40912288230e657c63a35408 Reviewed-on: https://pdfium-review.googlesource.com/39190 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-30Don't static_cast<>(this) to subclass in CXFA_LayoutItem methods.chromium/3508Tom Sepez
Instead, move the methods to the subclass where they belong. Fix IWYU in CJX_Object.h to fix compilation. Change-Id: I4c71f28235b9cf5000e9ddaf33d6602baf22205f Reviewed-on: https://pdfium-review.googlesource.com/39170 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-30Return unique_ptr from CXFA_FFNotify::OnCreate{Container,Content}LayoutItem()Tom Sepez
... and then immediately release it, but it is a step in the right direction. Change-Id: Ib52972c6789d8f98a576d1c69f8019541c96ac51 Reviewed-on: https://pdfium-review.googlesource.com/39152 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-30Convert some asserts to ifs in cxfa_ffnotify.cpp.Tom Sepez
We'll get a nice safe segv should this somehow happen in the wild instead of a type confusion error. We'll assert later on in the debug builds when the null is seen, as well. Change-Id: Iabd8468adcbacaa0acdc7c68f27cc8f94e0e68cc Reviewed-on: https://pdfium-review.googlesource.com/39151 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-30Type-safe iteration over CXFA_ContentLayoutItems.Tom Sepez
There's no reason that every CXFA_LayoutItem must be a CXFA_ContentLayout item, so use checked conversions. The code may already be arranging things so the constraint is already satisfied, but this adds an additional layer of safety. Tidy some long expressions with pre-existing typedef for node iterator while we're at it. Change-Id: If1448131ca73bfedb2266b070f1a913688598e64 Reviewed-on: https://pdfium-review.googlesource.com/39051 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-30Fix a misspelling of "locale".Lei Zhang
Change-Id: I3fdc6d473f08835b6caeacbbd583bb651a9c5678 Reviewed-on: https://pdfium-review.googlesource.com/39111 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-07-30Remove a NOTREACHED() in FormValueNode_SetChildContent().Lei Zhang
It is reachable, and the action is currently a no-op, so let it be. Also change FormValueNode_SetChildContent() to return void since no caller checks the return value. Remove its default argument, since all the callers set it. Change-Id: I742ca2d936872a3b3d609c178321199abc06546c Reviewed-on: https://pdfium-review.googlesource.com/39115 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-07-30Remove CFGAS_PDFFontMgr::m_FDE2PDFFont font cache.Henrique Nakashima
This cache is never read. Change-Id: Iaa4dcf8debf01ab783c2e757a19b18c0317d6fe1 Reviewed-on: https://pdfium-review.googlesource.com/39150 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-07-28Remove CXFA_TraverseStrategy_ContentLayoutItem.chromium/3507chromium/3506Tom Sepez
It makes illegal casts and requires its callers to double-check the type validity of results before use. Instead, use the parent class iterator and perform checked casts. No functional difference, since it looks like the requisite checks were being made in all places. Make one "using" visible to other files to save some verbosity. Change-Id: I894ca15b4bdddd4723b787663950a58bc58b7f06 Reviewed-on: https://pdfium-review.googlesource.com/39030 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-07-28Add ToXML{Instruction,Text,CharData}() checked conversion functionsTom Sepez
All usages were previously checked correctly, but this consolidates some code as well. Change-Id: I63711748b31b698a3f21f98fdb536db1e9e0b1cf Reviewed-on: https://pdfium-review.googlesource.com/39010 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-26Use moar ToXMLElement() in place of static_cast<>.Tom Sepez
Introduces checks in a few new places, but mainly just consolidates checking/casting logic. Change-Id: I634a03060d254db099972c6978249992367e146c Reviewed-on: https://pdfium-review.googlesource.com/38900 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-26Remove font cache from CFGAS_DefaultFontManager.chromium/3504Henrique Nakashima
The cache is never accessed and retains fonts in memory that will not be used anymore. Change-Id: Ia763499dc88a99741a85afc4ddd09257e8e1119c Reviewed-on: https://pdfium-review.googlesource.com/38898 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-07-25Remove CFX_MemoryStream uses in tests.Lei Zhang
Replace with CFX_BufferSeekableReadStream, which allows for spans and const inputs. Change CXFA_DocumentParser to take IFX_SeekableReadStream instead of IFX_SeekableStream in the process. Change-Id: I0168451350c9fc250231f0414c38738a4d86ca42 Reviewed-on: https://pdfium-review.googlesource.com/38852 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-07-25Disable submit in XFA forms.Henrique Nakashima
Bug: chromium:842503 Change-Id: If411815d8324929f482e3cad0fda54f24d370c2a Reviewed-on: https://pdfium-review.googlesource.com/37830 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-07-25Introduce ToXMLElement() checked downcast helper functionTom Sepez
And use it in place of ASSERT() that the type was correct. Since we can check it, doing so at runtime may help avoid type confusion, and we'll get a nice safe SEGV if the asserted condition ever fails. Change-Id: I46b65a4b70e819a670d7cad7966e0d100f0d9a63 Reviewed-on: https://pdfium-review.googlesource.com/38810 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-25Move CXFA_ThisProxy helper to CXFA_Object.Tom Sepez
Because the other helpers are declared here. Rename VariablesThis to ThisProxy in a few places; VariablesThis is a slightly different concept (see GetVariablesThis()). Then introduce helper for CXFA_List subclass as well. Remove unused const version of some helpers. Change-Id: Ia328d8cd170a8b97015e98c1c770fa8a44810455 Reviewed-on: https://pdfium-review.googlesource.com/38670 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-24Fix UAF in CPDFSDK_Widget::GetMixXFAWidget().chromium/3502Henrique Nakashima
Do not allow instanceManager methods to run in Foreground XFA forms. They are static, and their widgets should not be inserted or removed. See "XML Forms Architecture (XFA) Specification Version 3.3", page 272. Bug: chromium:860697 Change-Id: Ia96834e085ee508618ca4dcb2bd5271466369ede Reviewed-on: https://pdfium-review.googlesource.com/38751 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-07-23Tighten up ThisProxy casts.Tom Sepez
Previous CLs have shown that the "lpClass" checks aren't sufficient here, so ensure we are always checking C++ enum value before downcasting this type. Change-Id: I418127c5e7131e0a3363363a60d1976719d6837c Reviewed-on: https://pdfium-review.googlesource.com/38550 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-23Remove unused CScript_DataWindow::JSDataWindow().Tom Sepez
Do the same thing for N other similar files. Change-Id: If9bb7f6335287441206083c3512fc8a788e9d39b Reviewed-on: https://pdfium-review.googlesource.com/38532 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-23Replace CFXJSE_HostObject::type_ with polymorphic conversion methodsTom Sepez
More foolproof technique, and saves one word in every instance at a cost of two pointers in every subclass vtable. Change-Id: Ied4f91d4d203b5e6d83abe751159eb7e55489bb5 Reviewed-on: https://pdfium-review.googlesource.com/38530 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-20Replace downcasts in cxfa_node to checked conversion methods.Tom Sepez
Part of the effort to not trust downcasts in the CFXA_Node hierarchy. The number of subclasses is small enough here that the O(n^2) space overhead for the vtables is not significant. Put all sub-classes in same top-level namespace as the parent, just because we avoid jumping in and out of anonymous namespace. Change-Id: I32b80a93c75f8a09eb17c01fe1e29d04b4053fa1 Reviewed-on: https://pdfium-review.googlesource.com/38510 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-19Use pdfium::as_writable_bytes() in cxfa_xmllocale_unittest.cppTom Sepez
This is a cleaner way of getting the required argument. Add helper function and anonymous namespace as misc. cleanups along the way. Change-Id: I600074b7f6597ffd9b451a21ee374f937a8e9940 Reviewed-on: https://pdfium-review.googlesource.com/38310 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-17Limit recursion depth for CXFA_DocumentParser::NormalLoader().Henrique Nakashima
Bug: chromium:849143 Change-Id: I973bb3be6151ac3afad850533cb735c03e9f3d2c Reviewed-on: https://pdfium-review.googlesource.com/38210 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-07-16Use UnownedPtr/Optional in cfxa_layoutcontext.cppTom Sepez
Introduce cfxa_layoutcontext.cpp to satisfy chromium style ctor check. Fix typo in class forward declaration in cfxa_layoutcontext.h Change-Id: I2b29bf61a21be0f895faf8984897c5655a4f0e89 Reviewed-on: https://pdfium-review.googlesource.com/37950 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-07-16Fix crash when typing letters into an XFA datetime field.Henrique Nakashima
The root of the issue is that CXFA_FFDateTimeEdit inherits from CXFA_FFTextEdit and methods in the former treat its widget as a CFWL_Edit, while it can be a CFWL_DateTimePicker. Bug: chromium:857521 Change-Id: I764b6c03095b16f6a9cf72ff36768ca4c57c4070 Reviewed-on: https://pdfium-review.googlesource.com/37910 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2018-07-16Process data changes regardless if they can be formattedRyan Harrison
UI elements in XFA can have two different <picture> clauses with different meanings. One is a formatting statement that dictates the format the underlying data should appear in. The other <picture> occurs within an <validate> block and specificies what format the underlying should be. If it doesn't fit this <picture> the <validate> block indicates what should occur. In the existing code actually running the second <picture> type was being conditionally guarded on whether of not the formatting of the first type succeeded. This CL moves the calls related to data changing earlier, to before the formatting and UI updating occurs. BUG=pdfium:1065 Change-Id: Ib525c490074187c3272f4263ab451bf347b74f9c Reviewed-on: https://pdfium-review.googlesource.com/37250 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-07-16Use UnownedPtr in CXFA_LocaleMgrTom Sepez
Change-Id: I74b1828570e54a3868a77231a8ac13bc412c6c43 Reviewed-on: https://pdfium-review.googlesource.com/37051 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-05Clean up ProcessFormatTestValidateRyan Harrison
The existing implementation was overly complex and hard to understand, so this simplifies the logic. As part of this a number of issues, such as the lack of a failure path, have been resolved. The spec implies that a picture clause of "" should only accept the empty string, but existing implementation returns that validation does exist. This is due to the GetPicture() method returning a string, instead of a pointer or an Optional, so there is no mechanism to differentiate between a clause with an empty string and the clause not being present. This CL maintains the existing behaviour, because there may be code elsewhere that depends on it. The existing implementation returns validation not existing if the node under test is non-interactive. Though this seems intuitively correct, it is problematic, because this logic isn't just called via an interaction with the node. The validity check could be initiated by a call from JS attached to an event or a different node. Thus it is possible for a node under test to be non-interactive, but the result of the test is still important. The caller may make the node interactive if it isn't valid, for example. The spec doesn't state anything about interactivity controlling if validity checks run. This CL removes the related logic, since it was causing issues with an example PDF from the wild. BUG=pdfium:1065 Change-Id: Icb5b97e0d90f6fbc7ad6b87d81e256803c757eb0 Reviewed-on: https://pdfium-review.googlesource.com/37131 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-07-03Use unowned ptr to Node from outside XFA node tree.chromium/3481Tom Sepez
Change-Id: Idcd992224fc5411c97f3001293af83a6c581e695 Reviewed-on: https://pdfium-review.googlesource.com/36991 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
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