BackendPro 0.6.1

[eluser]ddrury[/eluser]
Right!

I think this works and may form the basis for the way forward.
In modules\page\config\page.php
create new arrays 'cond_css' for each of the admin,public & shared areas.

In modules\page\libraries\Page.php.
modify function output_assets() to handle 'cond_css' (2 lines marked with comment)
create new function _include_cond_css to handle the output.

BTW in the release version of the code you call for navigation.css in the admin area but it's missing!

Dave

Code:

$config['default_assets'] = array(
    'admin'  => array(
        'css'   => array('layout.css','style.css'),
        'js'    => array('navigation.js','select_all.js'),
        'cond_css'  => array('ie.ie.css','gte_ie_6.ie.css','ie_5.ie.css','ie_6.ie.css')),
    'public' => array(
        'css'   => array('layout.css'),
        'js'    => array(),
        'cond_css'  => array('ie.ie.css','gte_ie_6.ie.css','ie_5.ie.css','ie_6.ie.css')),
    'shared' => array(
        'css'   => array('reset.css','typography.css','forms.css','FlashStatus.css','icons.php','treeview.css'),
        'js'    => array('jquery.js','interface.js','jquery.cookie.js','jquery.treeview.js'),
        'cond_css'  => array()),
);


        function output_assets ($area = 'public',$print = TRUE)
        {
            if ($area != 'public' AND $area != 'admin')
            {
                // Just check a valid area has been given
                log_message("error","Cannot link asset area '" . $area . "'.");
                return;
            }
            // PREPARE VARIABLE OUTPUT
            // Transfer PHP variables into JS variables
            if (count($this->variables) != 0)
            {
                $this->output .= "\n<!--\n";
                foreach($this->variables as $name => $value)
                {
                    $this->output .= "var " . $name . " = ";
                    $this->_handle_variable($value);
                    $this->output .= ";\n";
                }
                $this->output .= "// -->\n\n";
            }

            // PREPARE ASSET OUTPUT
            $this->CI->load->helper('file');
            foreach(array('shared',$area) as $type)
            //foreach(array($area) as $type)
            {
                foreach(array('css','js','cond_css') as $asset) // CHANGED LINE
                {
                    // Asset path
                    $dir = $this->CI->config->item($type . "_assets") . $asset . "/";

                    // Get all files in asset path
                    $asset_files = get_filenames($dir);

                    // First lets check if there is a cache
                    if($this->CI->config->item('asset_cache_length') != 0 && $asset != 'cond_css') //CHANGED LINE
                    {
                        $is_cache = FALSE;
                        foreach($asset_files as $file)
                        {
                            if( preg_match("/".$this->CI->config->item('asset_cache_file_pfx')."([0-9]+).*/",$file,$match)){
                                // Check if the cache file has not expired
                                if($match[1] >= time())
                                {
                                    // Cache is valid
                                    $is_cache = TRUE;
                                    $this->{'_include_' . $asset}($dir . $file);
                                }
                                else
                                {
                                    // Remove old cache file
                                    unlink($dir . $file);
                                }
                                break;
                            }
                        }

                        // We couldn't find a valid cache file so create one
                        if( ! $is_cache)
                            $this->_write_cache($dir,$type,$asset);
                    }
                    else
                    {
                        // Caching is not used link files normally
                        foreach($this->default_assets[$type][$asset] as $file)
                        {
                            if( file_exists ($dir . $file))
                            {
                                $this->{'_include_' . $asset}($dir . $file);
                            }
                        }
                    }

                    // Link any extra asset files loaded on the fly
                    if( isset($this->extra_assets[$type][$asset]) && count($this->extra_assets[$type][$asset]) != 0)
                    {
                        foreach($this->extra_assets[$type][$asset] as $file)
                        {
                            $this->{'_include_' . $asset}($dir . $file);
                        }
                    }
                }
            }

            // Output HTML
            if($print){
                print $this->output;
            } else {
                return $this->output;
            }
        }
        function _include_cond_css($file)
        {
          if (strpos($file,'.ie.css')===FALSE)
          {
              $prefix = $suffix = '';
          }
          else
          {
            $prefix = '<!--[if ' . preg_replace(array('/ie/','/_/'),array('IE',' '),basename($file,'.ie.css')) . ']>';
            $suffix = '<![endif]--&gt;';
          }
          $this->output .= $prefix . '&lt;link rel="stylesheet" type="text/css" href="' . base_url() . $file . '" /&gt;' . $suffix;
          $this->output .= "\n";
        }