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Note that the merge of this fix to XFA found six bugs. Five
were fixed in https://codereview.chromium.org/826573003 and
one was fixed in https://codereview.chromium.org/831293002.
These bugs are now impossible to compile.
Replace manual/error-prone/hard-to-verify arraysize calculations with
safe FX_ArraySize macro.
pdfium has numerous places where the number of elements in an array is
calculated with expressions like:
sizeof(cFormats)/sizeof(FX_LPCWSTR)
This is suboptimal because it is verbose, it is easy to get wrong, and
it cannot be determined through casual inspection whether the code is
correct. It will give incorrect results if cFormats is a pointer instead
of an array and it will give incorrect results if FX_LPCWSTR is not the
type of the array elements.
The FX_WSTRC macro in fx_string.h which I fixed was particularly scary
because it would silently misbehave if passed a pointer.
The FX_ArraySize macro which I have added and started using (taken from
arraysize in v8's macros.h) is easier to use and will always give correct
results. If passed a pointer it will fail to compile.
For this change I only fixed instances of sizeof(FX_LPCWSTR). There
appear to be about 150 other places in the pdfium code that could
benefit from using FX_ArraySize.
TBR=bo_xu@foxitsoftware.com, tsepez@chromium.org
Review URL: https://codereview.chromium.org/818193004
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Getting rid of more (FX_LPCWSTR) casts and fixing two bugs revealed by this.
Since casts to FX_LPCWSTR have been shown to hide bugs I tried removing
more of them, targeting those places where a cast was used to force a
conversion from CFX_WideString to FX_LPCWSTR, replacing these casts with
calls to the newly added .c_str() function. This revealed two places
where the cast was hiding a bug -- where ->c_str() was required instead!
This removes ~33 FX_LPCWSTR casts and there are ~31 left, many of which
will go away in some future change.
Also includes this change:
Removing unnecessary casts from wchar_t* to wchar_t*, by various names.
Original patch from Bruce Dawson(brucedawson@chromium.org)
TBR=bo_xu@foxitsoftware.com, tsepez@chromium.org
Review URL: https://codereview.chromium.org/811593007
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Avoid duplicate definitions of JSCONST_n*Hash and QeTable variables.
QeTable is a 752 byte array that was defined in a header file. This
caused it to be instantiated by the VC++ compiler 12 times, wasting
8,272 bytes of space in the data segment. Because 'const' implies
'static' this did not cause any duplicate symbol errors.
JSCONST_n*HASH are a set of eight variables that are defined in a header
file. This causes them to be replicated 15 times. The variables
themselves are tiny but they are dynamically initialized and this
dynamic initialization code is replicated 15 times.
When tested on pdfium_test.exe the effect of this change is to:
Reduce the .text (code) segment by 3,616 bytes.
Reduce the .rdata section by 8,656 bytes.
Reduce the total binary file size by 13312 bytes.
These are the worst offenders for pdf.dll as shown in:
https://drive.google.com/open?id=1BvubxoA2SU_2e4T5cq7jHTjc1TlT0qOndpIfX3DMeA8&authuser=0
This will also drastically simplify the list of work to be done
for bug 441899 (getting rid of initializers).
BUG=441988
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/802013002
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Simplify PDFium by removing code that's not used in the open source repo.
-remove parameter from FPDF_InitLibrary
-remove a bunch of ifdefs that are unused
Fix build after previous commit.
TBR=tsepez@chromium.org
BUG=
Review URL: https://codereview.chromium.org/809513002
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Review URL: https://codereview.chromium.org/706993004
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BUG=425129
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/688303003
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BUG=pdfium-52
R=jun_fang@foxitsoftware.com
Review URL: https://codereview.chromium.org/623893003
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BUG=410326
R=tsepez@chromium.org
Review URL: https://codereview.chromium.org/594403003
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Security handler revision number is needed to interpret file permission.
BUG=None
R=thestig@chromium.org
Review URL: https://codereview.chromium.org/589813002
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BUG=chromium:395832
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/478353002
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Should there be cases where this fails to compile, it indicates a mistake,
either an incorrectly declared overrriden virtual method, or a method that
should be declared non-virtual.
The only issues were with CPDF_CustomAccess::GetBlock(), CPDF_CustomAccess::GetByte(),
and CPDF_CustomAccess::GetFullPath(). These don't appear to be used anywhere,
and are removed. Two members are removed that are no longer needed once those
methods are removed.
R=jam@chromium.org, jun_fang@foxitsoftware.com
Review URL: https://codereview.chromium.org/454983003
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BUG=pdfium:28
R=thakis@chromium.org
Review URL: https://codereview.chromium.org/472563002
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This has no ill-effect at present, but may be distracting when viewing the file
since it just looks wrong.
R=jun_fang@foxitsoftware.com
Review URL: https://codereview.chromium.org/461933003
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Edge closer to the goal of building PDFium with the chromium_code
configuration.
BUG=https://code.google.com/p/pdfium/issues/detail?id=29
R=bo_xu@foxitsoftware.com, thakis@chromium.org
Review URL: https://codereview.chromium.org/441763002
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No intended behavior change.
BUG=pdfium:29
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/436483002
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It's unused, and it caused a warning about CPDFSDK_Widget::ResetAppearance()
failing to override it (since these two unrelated methods had the same name).
No intended behavior change.
BUG=pdfium:29
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/429483004
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No intended behavior change.
BUG=pdfium:29
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/426763003
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BUG=pdfium:29
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/427353003
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There are many warnings that look like:
error: 'CPWL_RadioButton::OnChar' hides overloaded virtual function [-Werror,-Woverloaded-virtual]
virtual FX_BOOL OnChar(FX_WORD nChar);
^
note: hidden overloaded virtual function 'CPWL_Wnd::OnChar' declared here: different number of parameters (2 vs 1)
virtual FX_BOOL OnChar(FX_WORD nChar, FX_DWORD nFlag);
^
It looks like someone added the nFlag parameter to the methods in CPWL_Wnd
at some point and missed to update all overloads This patch attempts to fix this:
It adds the parameter to all methods that look like they're trying to overload the base
class method, and renames the method in one case where it fairly clearly looks like
that it's not supposed to be an overload.
BUG=pdfium:29
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/416383004
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fsdk_baseform.h:63:19: error: 'CPDFSDK_Widget::GetLayoutOrder' hides overloaded virtual function [-Werror,-Woverloaded-virtual]
virtual int GetLayoutOrder() {return 2;}
^
fsdk_baseannot.h:70:18: note: hidden overloaded virtual function 'CPDFSDK_Annot::GetLayoutOrder' declared here: different qualifiers (const vs none)
virtual int GetLayoutOrder() const { return 5; }
^
On Windows, I believe MSVS treats these as override since it's such a common and
easy mistake, but clang and gcc do what the standard specifies. Add a "const" to
the function in the subclass so that this is actually an override, as intended.
BUG=pdfium:29
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/427173002
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If somehow different length values could be obtained by two successive calls
to Doc_getFilePath() (and FieldBrowse() for that matter), and the method is
true to the API documentation that says "The return value always indicated
number of bytes required for the buffer, even when there is no buffer
specified, or the buffer size is less then required", then it is possible
to get a returned length describing memory beyond the current buffer.
We can make the corresponding JS_docGetFilePath() method more robust against
this case by applying better checks to the returned value.
This probably is unrelated since ASAN seems to be flagging the corresponding bug
as UAF, but doesn't hurt to make things more robust.
BUG=392956
R=jun_fang@foxitsoftware.com
Review URL: https://codereview.chromium.org/423233002
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Follow-up from https://codereview.chromium.org/424883002/
- Remove some stray whitespace.
- Fix "else after return".
- Remove unused swResponse local.
- Treat unexpectedly large responses as errors.
BUG=
R=jun_fang@foxitsoftware.com
Review URL: https://codereview.chromium.org/423953002
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No intended behavior change.
- Remove more unused variables, functions, member variables.
- Put a few constructor initializers in the order they execute in.
- Add braces for subobject initializers.
- Fix a handful of signed / unsigned comparisons.
BUG=pdfium:29
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/429593005
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Calling `delete` on an object of a type that has virtual functions but
not a virtual destructor is questionable: Since the object has virtual functions,
it likely has subclasses, so if it's deleted through the base pointer and the
destructor isn't virtual, the subclass destructor won't be called.
In most cases, the classes getting deleted can just be marked final to tell
the compiler that it can't possibly have subclasses (this also enables the
compiler to generate better code).
Two classes didn't have any sub- or superclasses but virtual functions -
this doesn't make sense, so make all methods of these classes non-virtual.
(Also delete an unused function on one of the two classes.)
In one case, a class actually did have a subclass that needs to be deleted
virtually, so mark one destructor as virtual.
BUG=none
R=bo_xu@foxitsoftware.com
Review URL: https://codereview.chromium.org/370853002
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It remains to call the PumpMessageLoop() method at a regular interval,
however, since nothing posts to the loop yet, that shouldn't be a
problem.
BUG=25
R=jam@chromium.org
Review URL: https://codereview.chromium.org/374123002
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This change adds the support to extract "NumCopies", "PrintPageRange", "Duplex" viewer preferences for printing.
BUG=169120
R=bo_xu@foxitsoftware.com, vitalybuka@chromium.org
Review URL: https://codereview.chromium.org/345123002
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This contains fixes for the following sorts of issues:
* Nonstandard extension: unnamed struct/union
This also changes the signature of FPDF_FillRect() to enable the cleanest
possible changes in https://codereview.chromium.org/372273005 .
BUG=81439
TEST=none
Original patch by Peter Kasting <pkasting@chromium.org>
Original code review: https://codereview.chromium.org/376003003/
R=pkasting@chromium.org
Review URL: https://codereview.chromium.org/377353002
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Fixes for re-enabling more MSVC level 4 warnings: pdfium/ edition
BUG=81439
TBR=pkasting@chromium.org
Review URL: https://codereview.chromium.org/376043003
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This contains fixes for the following sorts of issues:
* Nonstandard extension: unnamed struct/union
This also changes the signature of FPDF_FillRect() to enable the cleanest
possible changes in https://codereview.chromium.org/372273005 .
BUG=81439
TEST=none
Original patch by Peter Kasting <pkasting@chromium.org>
Original code review: https://codereview.chromium.org/376003003/
R=pkasting@chromium.org
Review URL: https://codereview.chromium.org/372383004
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BUG=382639
R=mdempsky@chromium.org
Review URL: https://codereview.chromium.org/354673002
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MSVC lexes L#macro_arg as a single wide string literal token, but
Clang and other C/C++ compliant lexers do not. There was already
a workaround to use implicit string concatenation for GCC, but there's
a simpler solution of token pasting the L onto the stringized macro
argument with 'L###macro_arg'. This works with Clang, GCC, and MSVC.
R=jun_fang@foxitsoftware.com, jam@chromium.org
BUG=82385
Original patch by Reid Kleckner <rnk@chromium.org>
Review URL: https://codereview.chromium.org/345643002
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R=jam@chromium.org
Review URL: https://codereview.chromium.org/336563004
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R=jam@chromium.org
Review URL: https://codereview.chromium.org/333753002
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R=jam@chromium.org
Review URL: https://codereview.chromium.org/297993002
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into errors. It also makes it clearer to find usage of v8 in the library.
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