/var-www-hotglue/hotglue.org-test/dev/module_page.inc.php

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<?php

/*
 *      module_page.inc.php
 *      Module for managing pages
 *
 *      Copyright Gottfried Haider, Danja Vasiliev 2010.
 *      This source code is licensed under the GNU General Public License.
 *      See the file COPYING for more details.
 */

@require_once('config.inc.php');
require_once('common.inc.php');
require_once('html.inc.php');
require_once('util.inc.php');


// module_image.inc.php has more information on what's going on inside modules 
// (they can be easier than that one though)


/**
 *      clear the page's current background image
 *
 *      @param array $args arguments
 *              key 'page' is the page (i.e. page.rev)
 *      @return array response
 */
function page_clear_background_img($args)
{
        if (!isset($args['page'])) {
                return response('Required argument "page" missing', 400);
        }
        if (!page_exists($args['page'])) {
                return response('Page '.quot($args['page']).' does not exist', 400);
        }
        
        load_modules('glue');
        $obj = load_object(array('name'=>$args['page'].'.page'));
        if ($obj['#error']) {
                // page object does not exist, hence no background image to clear
                return response(true);
        } else {
                $obj = $obj['#data'];
        }
        
        if (!empty($obj['page-background-file'])) {
                // delete file
                delete_upload(array('pagename'=>array_shift(expl('.', $args['page'])), 'file'=>$obj['page-background-file'], 'max_cnt'=>1));
                // and remove attributes
                return object_remove_attr(array('name'=>$obj['name'], 'attr'=>array('page-background-file', 'page-background-mime')));
        } else {
                return response(true);
        }
}

register_service('page.clear_background_img', 'page_clear_background_img', array('auth'=>true));


function page_delete_page($args)
{
        $page = $args['page'];
        
        // check if there is a page object
        $obj = load_object(array('name'=>$page.'.page'));
        if ($obj['#error']) {
                return false;
        } else {
                $obj = $obj['#data'];
        }
        // check if there is a background-image
        if (!empty($obj['page-background-file'])) {
                // delete it
                delete_upload(array('pagename'=>array_shift(expl('.', $page)), 'file'=>$obj['page-background-file'], 'max_cnt'=>1));
                return true;
        } else {
                return false;
        }
}


function page_has_reference($args)
{
        $obj = $args['obj'];
        if (array_pop(expl('.', $obj['name'])) != 'page') {
                return false;
        }
        
        if (!empty($obj['page-background-file']) && $obj['page-background-file'] == $args['file']) {
                return true;
        } else {
                return false;
        }
}


/**
 *      get the current grid size
 *
 *      @param array $args arguments
 *      @return array response
 *              'x', 'y' the grid size
 */
function page_get_grid($args)
{
        if (($s = @file_get_contents(CONTENT_DIR.'/grid')) !== false) {
                $a = expl(' ', $s);
                return response(array('x'=>intval($a[0]), 'y'=>intval($a[1])));
        } else {
                return response(array('x'=>PAGE_DEFAULT_GRID_X, 'y'=>PAGE_DEFAULT_GRID_Y));
        }
}

register_service('page.get_grid', 'page_get_grid');


function page_render_object($args)
{
        $obj = $args['obj'];
        $a = expl('.', $obj['name']);
        if ($a[2] != 'page') {
                return false;
        }
        
        // background-attachment
        if (!empty($obj['page-background-attachment'])) {
                html_css('background-attachment', $obj['page-background-attachment']);
        }
        // background-color
        if (!empty($obj['page-background-color'])) {
                html_css('background-color', $obj['page-background-color']);
        }
        // background-image
        if (!empty($obj['page-background-file'])) {
                if (SHORT_URLS) {
                        html_css('background-image', 'url('.base_url().htmlspecialchars(urlencode($obj['name']), ENT_NOQUOTES, 'UTF-8').')');
                } else {
                        html_css('background-image', 'url('.base_url().'?'.htmlspecialchars(urlencode($obj['name']), ENT_NOQUOTES, 'UTF-8').')');
                }
        }
        // background-image-position
        if (!empty($obj['page-background-image-position'])) {
                html_css('background-position', $obj['page-background-image-position']);
        }
        // set the html title
        if (isset($obj['page-title'])) {
                html_title($obj['page-title']);
        }
}


function page_render_page_early($args)
{
        if ($args['edit']) {
                if (USE_MIN_FILES) {
                        html_add_js(base_url().'modules/page/page-edit.min.js');
                } else {
                        html_add_js(base_url().'modules/page/page-edit.js');
                }
                html_add_css(base_url().'modules/page/page-edit.css');
                
                // set default grid
                $grid = page_get_grid(array());
                $grid = $grid['#data'];
                html_add_js_var('$.glue.conf.page.default_grid_x', $grid['x']);
                html_add_js_var('$.glue.conf.page.default_grid_y', $grid['y']);
                                
                // set guides
                $guide = expl(' ', PAGE_GUIDES_X);
                for ($i=0; $i < count($guide); $i++) {
                        $guide[$i] = intval(trim($guide[$i]));
                }
                html_add_js_var('$.glue.conf.page.guides_x', $guide);
                $guide = expl(' ', PAGE_GUIDES_Y);
                for ($i=0; $i < count($guide); $i++) {
                        $guide[$i] = intval(trim($guide[$i]));
                }
                html_add_js_var('$.glue.conf.page.guides_y', $guide);
        }

        // set the html title to the page name by default
        html_title(page_short($args['page']));
}


function page_serve_resource($args)
{
        $obj = $args['obj'];
        if (array_pop(expl('.', $obj['name'])) != 'page') {
                return false;
        }
        $pn = array_shift(expl('.', $obj['name']));
        
        if (!empty($obj['page-background-file'])) {
                $fn = CONTENT_DIR.'/'.$pn.'/shared/'.$obj['page-background-file'];
                if (isset($obj['page-background-mime'])) {
                        $mime = $obj['page-background-mime'];
                } else {
                        $mime = '';
                }
                serve_file($fn, false, $mime);
        }
        
        // if everything fails
        return false;
}


/**
 *      get the current grid size
 *
 *      @param array $args arguments
 *              key 'x', 'y' is the grid size
 *      @return array response
 *              true if successful
 */
function page_set_grid($args)
{
        if (($x = @intval($args['x'])) == 0) {
                return response('Required argument "x" missing or invalid', 400);
        }
        if (($y = @intval($args['y'])) == 0) {
                return response('Required argument "y" missing or invalid', 400);
        }
        
        $m = umask(0111);
        if (!@file_put_contents(CONTENT_DIR.'/grid', $x.' '.$y)) {
                umask($m);
                return response('Error saving to global grid file', 500);
        } else {
                umask($m);
                return response(true);
        }
}

register_service('page.set_grid', 'page_set_grid', array('auth'=>true));


function page_upload($args)
{
        // only handle the file if the frontend wants us to
        if (empty($args['preferred_module']) || $args['preferred_module'] != 'page') {
                return false;
        }
        // check if supported file
        if (!in_array($args['mime'], array('image/jpeg', 'image/png', 'image/gif')) || ($args['mime'] == '' && !in_array(filext($args['file']), array('jpg', 'jpeg', 'png', 'gif')))) {
                return false;
        }
        
        // check if there is already a background-image and delete it
        $obj = load_object(array('name'=>$args['page'].'.page'));
        if (!$obj['#error']) {
                $obj = $obj['#data'];
                if (!empty($obj['page-background-file'])) {
                        delete_upload(array('pagename'=>array_shift(expl('.', $args['page'])), 'file'=>$obj['page-background-file'], 'max_cnt'=>1));
                }
        }
        
        // set as background-image in page object
        $obj = array();
        $obj['name'] = $args['page'].'.page';
        $obj['page-background-file'] = $args['file'];
        $obj['page-background-mime'] = $args['mime'];
        
        // update page object
        load_modules('glue');
        $ret = update_object($obj);
        if ($ret['#error']) {
                log_msg('page_upload: error updating page object: '.quot($ret['#data']));
                return false;
        } else {
                // we don't actually render the object here, but signal the 
                // frontend that everything went okay
                return true;
        }
}

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