CPersist Class Reference

Collaboration diagram for CPersist:

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List of all members.

Public Member Functions
	CPersist ()
	~CPersist ()
Static Public Member Functions
static void	SetBrowser (Ereader *p)
static Ereader *	GetBrowser ()
static char *	GetPageLastRead (const char *input)
static void	StorePageLastRead (const char *url)
static void	SetManifestPathName (const char *pathName)
static void	InstallTermHandler ()
static void	UninstallTermHandler ()
static gboolean	FileExist (const char *p)
Static Private Member Functions
static void	OnTerminated (int sig)
static void	PreparePath ()
Static Private Attributes
static Ereader *	s_pBrowser = NULL
static const int	MAX_PATH = 1024
static char	s_url [MAX_PATH]
static char	s_inputUrl [MAX_PATH]
static char	s_ManifestPathName [MAX_PATH]

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Detailed Description

Definition at line 55 of file browser.cpp.

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Constructor & Destructor Documentation

CPersist::CPersist

(

)

[inline]

Definition at line 67 of file browser.cpp.

{}

CPersist::~CPersist

(

)

[inline]

Definition at line 68 of file browser.cpp.

{}

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Member Function Documentation

void CPersist::OnTerminated

(

int

sig

)

[static, private]

Definition at line 111 of file browser.cpp.

{
    // save into manifest file
    destroy_ereader(s_pBrowser);
    s_pBrowser = NULL;
    exit(0);
}

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static void CPersist::PreparePath

(

)

[static, private]

static void CPersist::SetBrowser

(

Ereader *

p

)

[inline, static]

Definition at line 70 of file browser.cpp.

{ s_pBrowser = p; }

static Ereader* CPersist::GetBrowser

(

)

[inline, static]

Definition at line 71 of file browser.cpp.

{ return s_pBrowser; }

char * CPersist::GetPageLastRead

(

const char *

input

)

[static]

Definition at line 186 of file browser.cpp.

{
    BR_LOGPRINTF("input %s", input);

    // save input url first
    strncpy(s_inputUrl, input, MAX_PATH);

    // get url last visisted from manifest file
    char * url = NULL;
    erManifest manifest;
    memset(s_url, 0, MAX_PATH);
    if (RET_OK == ermXmlOpenFile(s_ManifestPathName, &manifest))
    {
        // usually the manifest file is existing
        if (RET_OK == ermXmlGetString(&manifest, "/package/last-location/document", s_url, MAX_PATH))
        {
            url = &s_url[0];
        }
        ermXmlClose(&manifest);
    }
    
    // check url is valid or not
    BR_LOGPRINTF("url from manifest %s", url);
    if (NULL == url) 
    {
        BR_LOGPRINTF("Could not retrieve url from manifest file %s!", s_ManifestPathName);
        return (char *)input;
    }
    
    // convert to path and check file exist, for those manifest using absolute path
    int prefix = strlen("file://");
    char tmp[MAX_PATH]  = {0};
    strcpy(tmp, "file://");
    char *path = mozilla_uri_to_path(url);
    if (path && FileExist(path))
    {
        // absolute path
        strncpy(&s_url[0], path, MAX_PATH);
        free(path);
        return &s_url[0];
    }
    else
    {
        // release 
        if (path) 
        {
            free(path);
        }
    
        // relative path, change to absolute path
        strcpy(tmp + prefix, s_ManifestPathName);
        char * pos = strrchr(tmp + prefix, '/');
        ++pos;
        strcpy(pos, url);
        pos += strlen(url); *pos = 0;
        strncpy(s_url, tmp , strlen(tmp));
    }
    
    // check again now
    BR_LOGPRINTF("check again the input %s", s_url);
    if (FileExist(s_url + prefix))
    {
        BR_LOGPRINTF("url result %s", s_url);
        return s_url;
    }
    return NULL;
}

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void CPersist::StorePageLastRead

(

const char *

url

)

[static]

Definition at line 129 of file browser.cpp.

{
    // get rid of the whole prefix, only use relative path
    // find common sub string in this two strings 
    // and reverse find the /
    BR_LOGPRINTF("Input url %s\n", url);
    char * path = mozilla_uri_to_path(url);
    char * mem  = path;
    if (path == NULL)
    {
        BR_LOGPRINTF("No local path %s", url);
        // Use inputUrl as last known location, instead of
        // an invalid one
        path = strdup(s_inputUrl);
    }
    else
    {
        BR_LOGPRINTF("Output path %s\n", path);
        char * tmp = &s_ManifestPathName[0];
        while (path && tmp && *path == *tmp)
        {
            ++path; ++tmp;
        }
        if (path)
        { 
            while (*path != '/')
            {
                --path;
            }
            path++;
        }
    }
    BR_LOGPRINTF("Last location in relative path %s\n", path);
    erManifest manifest;
    if (RET_OK == ermXmlOpenFile(s_ManifestPathName, &manifest))
    {
        // usually the manifest file is existing
        if (RET_OK != ermXmlExist(&manifest, "/package/last-location/document"))
        {
            ermXmlNewString(&manifest, "/package", "last-location", "");
            ermXmlNewString(&manifest, "/package/last-location", "document", "");
        }
        ermXmlSetString(&manifest, "/package/last-location/document", path);
        ermXmlSaveAndClose(&manifest);
    }
    if (mem)
    {
        free(mem);
    }
}

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void CPersist::SetManifestPathName

(

const char *

pathName

)

[static]

Definition at line 85 of file browser.cpp.

{
    if (pathName)
    {
        strncpy(s_ManifestPathName, pathName, MAX_PATH);
    }        
}

void CPersist::InstallTermHandler

(

)

[static]

Definition at line 93 of file browser.cpp.

{
    // catch the SIGTERM signal
    struct sigaction on_term;
    memset(&on_term, 0x00, sizeof(on_term));
    on_term.sa_handler = OnTerminated;
    sigaction(SIGTERM, &on_term, NULL);
}

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void CPersist::UninstallTermHandler

(

)

[static]

Definition at line 102 of file browser.cpp.

{
    // uninstall the SIGTERM signal
    struct sigaction on_term;
    memset(&on_term, 0x00, sizeof(on_term));
    on_term.sa_handler = SIG_DFL;
    sigaction(SIGTERM, &on_term, NULL);
}

gboolean CPersist::FileExist

(

const char *

p

)

[static]

Definition at line 119 of file browser.cpp.

{
    struct stat statbuf;
    if (0 != stat(pathName, &statbuf))
    {
        return FALSE;
    }
    return TRUE;
}

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Member Data Documentation

Ereader * CPersist::s_pBrowser = NULL [static, private]

Definition at line 58 of file browser.cpp.

const int CPersist::MAX_PATH = 1024 [static, private]

Definition at line 59 of file browser.cpp.

char CPersist::s_url [static, private]

Definition at line 60 of file browser.cpp.

char CPersist::s_inputUrl [static, private]

Definition at line 61 of file browser.cpp.

char CPersist::s_ManifestPathName [static, private]

Definition at line 62 of file browser.cpp.

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The documentation for this class was generated from the following file:

• erbrowser/src/browser.cpp