--- /dev/null
+<?php
+/**
+ * A helper for web links
+ *
+ * @author Roland Haeder <webmaster@ship-simu.org>
+ * @version 0.0.0
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, this is free software
+ * @license GNU GPL 3.0 or any newer version
+ * @link http://www.ship-simu.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+class WebLinkHelper extends BaseWebHelper implements HelpableTemplate {
+ /**
+ * Name of the link
+ */
+ private $linkName = "";
+
+ /**
+ * Base of the link
+ */
+ private $linkBase = "";
+
+ /**
+ * Protected constructor
+ *
+ * @return void
+ */
+ protected function __construct () {
+ // Call parent constructor
+ parent::__construct(__CLASS__);
+ }
+
+ /**
+ * Creates the helper class
+ *
+ * @param $templateInstance An instance of a template engine
+ * @param $linkName Name of the link we shall generate
+ * @param $linkBase Link base for all generated links
+ * @return $helperInstance A prepared instance of this helper
+ */
+ public final static function createWebLinkHelper (CompileableTemplate $templateInstance, $linkName, $linkBase) {
+ // Get new instance
+ $helperInstance = new WebLinkHelper();
+
+ // Set template instance
+ $helperInstance->setTemplateInstance($templateInstance);
+
+ // Set link name
+ $helperInstance->setLinkName($linkName);
+
+ // Set link base
+ $helperInstance->setLinkBase($linkBase);
+
+ // Return the prepared instance
+ return $helperInstance;
+ }
+
+ /**
+ * Setter for link name
+ *
+ * @param $linkName Name of the link we shall generate
+ * @return void
+ */
+ protected final function setLinkName ($linkName) {
+ $this->linkName = (string) $linkName;
+ }
+
+ /**
+ * Getter for link name
+ *
+ * @return $linkName Name of the link we shall generate
+ */
+ public final function getLinkName () {
+ return $this->linkName;
+ }
+
+ /**
+ * Setter for link base
+ *
+ * @param $linkBase Base of the link we shall generate
+ * @return void
+ */
+ protected final function setLinkBase ($linkBase) {
+ $this->linkBase = (string) $linkBase;
+ }
+
+ /**
+ * Getter for link base
+ *
+ * @return $linkBase Base of the link we shall generate
+ */
+ public final function getLinkBase () {
+ return $this->linkBase;
+ }
+
+ /**
+ * Flush the content out,e g. to a template variable
+ *
+ * @return void
+ * @todo Completely unimplemented
+ */
+ public function flushContent () {
+ // Is a previous opened group still open?
+ if ($this->ifGroupOpenedPreviously()) {
+ // Then close it
+ $this->closePreviousGroupByContent("</div>");
+ } // END - if
+
+ // Get the content
+ $content = $this->renderContent();
+
+ // Get template engine
+ $templateInstance = $this->getTemplateInstance();
+
+ // Add content to variable
+ $templateInstance->assignVariable($this->getLinkName(), $content);
+ }
+
+ /**
+ * Adds a link group (like the form group is) with some raw language to the
+ * helper.
+ *
+ * @param $groupId Id string of the group
+ * @param $groupText Text for this group to add
+ * @return void
+ */
+ public function addLinkGroup ($groupId, $groupText) {
+ // Is a group with that name open?
+ if ($this->ifGroupIsOpened($groupId)) {
+ // Then close it here
+ $this->closePreviousGroupByContent("</div>");
+ } else {
+ // Is a previous opened group still open?
+ if ($this->ifGroupOpenedPreviously()) {
+ // Then close it
+ $this->closePreviousGroupByContent("</div>");
+ } // END - if
+
+ // Generate the group content
+ $content = sprintf("<div id=\"group_%s_%s\">%s",
+ $this->getLinkName(),
+ $groupId,
+ $groupText
+ );
+
+ // Open the new group
+ $this->openGroupByIdContent($groupId, $content);
+ }
+ }
+
+ /**
+ * Adds text (note) to the previously opened group or throws an exception
+ * if no previous group was opened.
+ *
+ * @param $groupNote Note to be added to a group
+ * @return void
+ * @throws NoGroupOpenedException If no previous group was opened
+ */
+ public function addLinkNote ($groupNote) {
+ // Check if a previous group was opened
+ if (!$this->ifGroupOpenedPreviously()) {
+ // No group was opened before!
+ throw new NoGroupOpenedException(array($this, $groupNote), self::EXCEPTION_GROUP_NOT_OPENED);
+ } // END - if
+
+ // Add the content to the previous group
+ $this->addContentToPreviousGroup($groupNote);
+ }
+
+ /**
+ * Adds a link to the previously opened group or throws an exception if no group has been opened
+ *
+ * @param $linkAction Action (action=xxx) value for the link
+ * @param $linkText Link text and title (title="xxx") for the link
+ * @return void
+ * @throws NoGroupOpenedException If no previous group was opened
+ */
+ public function addActionLink ($linkAction, $linkText) {
+ // Check if a previous group was opened
+ if (!$this->ifGroupOpenedPreviously()) {
+ // No group was opened before!
+ throw new NoGroupOpenedException(array($this, $groupNote), self::EXCEPTION_GROUP_NOT_OPENED);
+ } // END - if
+
+ // Default parameter seperator is &
+ $seperator = "&";
+
+ // Get link base
+ $linkBase = $this->getLinkBase();
+
+ // Is there a question mark in?
+ $linkArray = explode("?", $linkBase);
+ if (count($linkArray) == 0) {
+ // No question mark
+ $seperator = "?";
+ }
+
+ // Renders the link content
+ $linkContent = sprintf("<a href=\"%s%saction=%s\" title=\"%s\">%s</a>",
+ $linkBase,
+ $seperator,
+ $linkAction,
+ $linkText,
+ $linkText
+ );
+
+ // Add the content to the previous group
+ $this->addContentToPreviousGroup($linkContent);
+ }
+}
+
+// [EOF]
+?>