2010-02-26 02:51:55 +00:00
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<?php defined("SYSPATH") or die("No direct script access.");
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/**
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* Gallery - a web based photo album viewer and editor
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2010-03-04 05:36:58 +00:00
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* Copyright (C) 2000-2010 Bharat Mediratta
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2010-02-26 02:51:55 +00:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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class exif_gps_event_Core {
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static function pre_deactivate($data) {
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// If the admin is about to deactivate EXIF, warn them that this module requires it.
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if ($data->module == "exif") {
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$data->messages["warn"][] = t("The EXIF_GPS module requires the EXIF module.");
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}
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}
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static function module_change($changes) {
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// If EXIF is deactivated, display a warning that it is required for this module to function properly.
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if (!module::is_active("exif") || in_array("exif", $changes->deactivate)) {
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site_status::warning(
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t("The EXIF_GPS module requires the EXIF module. " .
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"<a href=\"%url\">Activate the EXIF module now</a>",
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array("url" => html::mark_clean(url::site("admin/modules")))),
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"exif_gps_needs_exif");
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} else {
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site_status::clear("exif_gps_needs_exif");
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}
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}
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static function item_created($item) {
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// Whenever a new non-album item is created, check it for GPS coordinates.
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if (!$item->is_album()) {
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exif_gps::extract($item);
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}
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}
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static function item_deleted($item) {
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// Whenever an item is deleted, delete any corresponding GPS coordinates.
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db::build()
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->delete("exif_coordinates")
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->where("item_id", "=", $item->id)
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->execute();
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}
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static function item_edit_form($item, $form) {
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// Allow users to set / edit the GPS coordinates associated with the current item.
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$record = ORM::factory("exif_coordinate")->where("item_id", "=", $item->id)->find();
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if ($record->loaded()) {
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$form->edit_item->input("latitude")->label(t("Latitude"))
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->value($record->latitude);
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$form->edit_item->input("longitude")->label(t("Longitude"))
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->value($record->longitude);
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} else {
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$form->edit_item->input("latitude")->label(t("Latitude"));
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$form->edit_item->input("longitude")->label(t("Longitude"));
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}
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}
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static function item_edit_form_completed($item, $form) {
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// Update the db records with the user-specified coordinates.
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// Require a set of coordinates (both latitude and longitude).
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// If one or both fields are blank, completely delete any coordinates associated with this item.
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if (($form->edit_item->latitude->value == "") || ($form->edit_item->longitude->value == "")) {
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db::build()
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->delete("exif_coordinates")
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->where("item_id", "=", $item->id)
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->execute();
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} else {
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$record = ORM::factory("exif_coordinate")->where("item_id", "=", $item->id)->find();
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if (!$record->loaded()) {
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$record->item_id = $item->id;
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}
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$record->latitude = $form->edit_item->latitude->value;
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$record->longitude = $form->edit_item->longitude->value;
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$record->save();
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}
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}
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}
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