xahaud/modules/beast_core/native/android_Files.cpp

//------------------------------------------------------------------------------
/*
    This file is part of Beast: https://github.com/vinniefalco/Beast
    Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>

    Portions of this file are from JUCE.
    Copyright (c) 2013 - Raw Material Software Ltd.
    Please visit http://www.juce.com

    Permission to use, copy, modify, and/or distribute this software for any
    purpose  with  or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.

    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================

namespace beast
{

bool File::copyInternal (const File& dest) const
{
    FileInputStream in (*this);

    if (dest.deleteFile())
    {
        {
            FileOutputStream out (dest);

            if (out.failedToOpen())
                return false;

            if (out.writeFromInputStream (in, -1) == getSize())
                return true;
        }

        dest.deleteFile();
    }

    return false;
}

void File::findFileSystemRoots (Array<File>& destArray)
{
    destArray.add (File ("/"));
}

//==============================================================================
bool File::isOnCDRomDrive() const
{
    return false;
}

bool File::isOnHardDisk() const
{
    return true;
}

bool File::isOnRemovableDrive() const
{
    return false;
}

bool File::isHidden() const
{
    return getFileName().startsWithChar ('.');
}

//==============================================================================
namespace
{
    File beast_readlink (const String& file, const File& defaultFile)
    {
        const int size = 8192;
        HeapBlock<char> buffer;
        buffer.malloc (size + 4);

        const size_t numBytes = readlink (file.toUTF8(), buffer, size);

        if (numBytes > 0 && numBytes <= size)
            return File (file).getSiblingFile (String::fromUTF8 (buffer, (int) numBytes));

        return defaultFile;
    }
}

File File::getLinkedTarget() const
{
    return beast_readlink (getFullPathName().toUTF8(), *this);
}

//==============================================================================
File File::getSpecialLocation (const SpecialLocationType type)
{
    switch (type)
    {
        case userHomeDirectory:
        case userDocumentsDirectory:
        case userMusicDirectory:
        case userMoviesDirectory:
        case userPicturesDirectory:
        case userApplicationDataDirectory:
        case commonDocumentsDirectory:
        case userDesktopDirectory:
            return File (android.appDataDir);

        case commonApplicationDataDirectory:
            return File (android.appDataDir);

        case globalApplicationsDirectory:
            return File ("/system/app");

        case tempDirectory:
            return File (android.appDataDir).getChildFile (".temp");

        case invokedExecutableFile:
        case currentExecutableFile:
        case currentApplicationFile:
        case hostApplicationPath:
            return beast_getExecutableFile();

        default:
            bassertfalse; // unknown type?
            break;
    }

    return File::nonexistent ();
}

//==============================================================================
String File::getVersion() const
{
    return String::empty;
}

//==============================================================================
bool File::moveToTrash() const
{
    if (! exists())
        return true;

    // TODO

    return false;
}

//==============================================================================
class DirectoryIterator::NativeIterator::Pimpl : public Uncopyable
{
public:
    Pimpl (const File& directory, const String& wildCard_)
        : parentDir (File::addTrailingSeparator (directory.getFullPathName())),
          wildCard (wildCard_),
          dir (opendir (directory.getFullPathName().toUTF8()))
    {
    }

    ~Pimpl()
    {
        if (dir != 0)
            closedir (dir);
    }

    bool next (String& filenameFound,
               bool* const isDir, bool* const isHidden, int64* const fileSize,
               Time* const modTime, Time* const creationTime, bool* const isReadOnly)
    {
        if (dir != 0)
        {
            const char* wildcardUTF8 = nullptr;

            for (;;)
            {
                struct dirent* const de = readdir (dir);

                if (de == nullptr)
                    break;

                if (wildcardUTF8 == nullptr)
                    wildcardUTF8 = wildCard.toUTF8();

                if (fnmatch (wildcardUTF8, de->d_name, FNM_CASEFOLD) == 0)
                {
                    filenameFound = CharPointer_UTF8 (de->d_name);

                    updateStatInfoForFile (parentDir + filenameFound, isDir, fileSize, modTime, creationTime, isReadOnly);

                    if (isHidden != 0)
                        *isHidden = filenameFound.startsWithChar ('.');

                    return true;
                }
            }
        }

        return false;
    }

private:
    String parentDir, wildCard;
    DIR* dir;
};


DirectoryIterator::NativeIterator::NativeIterator (const File& directory, const String& wildCard)
    : pimpl (new DirectoryIterator::NativeIterator::Pimpl (directory, wildCard))
{
}

DirectoryIterator::NativeIterator::~NativeIterator()
{
}

bool DirectoryIterator::NativeIterator::next (String& filenameFound,
                                              bool* const isDir, bool* const isHidden, int64* const fileSize,
                                              Time* const modTime, Time* const creationTime, bool* const isReadOnly)
{
    return pimpl->next (filenameFound, isDir, isHidden, fileSize, modTime, creationTime, isReadOnly);
}


//==============================================================================
bool Process::openDocument (const String& fileName, const String& parameters)
{
    const LocalRef<jstring> t (javaString (fileName));
    android.activity.callVoidMethod (BeastAppActivity.launchURL, t.get());
    return true;
}

void File::revealToUser() const
{
}

}  // namespace beast