[Webkit-unassigned] [Bug 40209] New: [GTK] Enabling File Reader/Writer APIs

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=40209

           Summary: [GTK] Enabling File Reader/Writer APIs
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Platform
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: joone at kldp.org


Created an attachment (id=57976)
 --> (https://bugs.webkit.org/attachment.cgi?id=57976)
Proposed Patch

Enabling FileAPI for GTK Port causes build error.
Because there are 3 functions not implemented yet in FileSystemGtk.cpp
 * CString fileSystemRepresentation(const String& path)
 * PlatformFileHandle openFile(const String& path, FileOpenMode mode)
 * int readFromFile(PlatformFileHandle handle, char* data, int length)

I copied these functions from other port and tweaked a bit.
However, it could not pass fast/files test case.

The problem is that fileBlob, the parameter of readAsBinaryString is null as follows,

#0  0x002c42d8 in WTF::RefPtr<WebCore::StringImpl>::operator! (this=0xc) at ../../JavaScriptCore/wtf/RefPtr.h:68
#1  0x002ccc27 in WebCore::String::length (this=0xc) at ../../JavaScriptCore/wtf/text/WTFString.h:123
#2  0x00ca4b6f in WebCore::String::utf8 (this=0xc) at ../../JavaScriptCore/wtf/text/WTFString.cpp:641
#3  0x005b19da in WebCore::FileReader::readAsBinaryString (this=0x85ab058, fileBlob=0x0) at ../../WebCore/html/FileReader.cpp:88
#4  0x00df4baf in WebCore::jsFileReaderPrototypeFunctionReadAsBinaryString (exec=0xb544e118) at DerivedSources/JSFileReader.cpp:390

Is there any idea for solving this problem?

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