3 * A helper for web links
5 * @author Roland Haeder <webmaster@ship-simu.org>
7 * @copyright Copyright (c) 2007, 2008 Roland Haeder, this is free software
8 * @license GNU GPL 3.0 or any newer version
9 * @link http://www.ship-simu.org
11 * This program is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 class WebLinkHelper extends BaseWebHelper implements HelpableTemplate {
28 private $linkName = "";
33 private $linkBase = "";
36 * Protected constructor
40 protected function __construct () {
41 // Call parent constructor
42 parent::__construct(__CLASS__);
46 * Creates the helper class
48 * @param $templateInstance An instance of a template engine
49 * @param $linkName Name of the link we shall generate
50 * @param $linkBase Link base for all generated links
51 * @return $helperInstance A prepared instance of this helper
53 public final static function createWebLinkHelper (CompileableTemplate $templateInstance, $linkName, $linkBase) {
55 $helperInstance = new WebLinkHelper();
57 // Set template instance
58 $helperInstance->setTemplateInstance($templateInstance);
61 $helperInstance->setLinkName($linkName);
64 $helperInstance->setLinkBase($linkBase);
67 $helperInstance->openGroupByIdContent('main', "");
69 // Return the prepared instance
70 return $helperInstance;
74 * Renders the link content (HTML code) with given link text and optional
77 * @param $linkText Link text to set in link
78 * @param $extraContent Optional extra HTML content
79 * @return $linkContent Rendered text link content
81 private function renderLinkContentWithTextExtraContent ($linkText, $extraContent="") {
82 // Construct link content
83 $linkContent = sprintf("<a href=\"%s%s\" title=\"%s\">%s</a>",
95 * Setter for link name
97 * @param $linkName Name of the link we shall generate
100 protected final function setLinkName ($linkName) {
101 $this->linkName = (string) $linkName;
105 * Getter for link name
107 * @return $linkName Name of the link we shall generate
109 public final function getLinkName () {
110 return $this->linkName;
114 * Setter for link base
116 * @param $linkBase Base of the link we shall generate
119 protected final function setLinkBase ($linkBase) {
120 $this->linkBase = (string) $linkBase;
124 * Getter for link base
126 * @return $linkBase Base of the link we shall generate
128 public final function getLinkBase () {
129 return $this->linkBase;
133 * Flush the content out,e g. to a template variable
136 * @todo Completely unimplemented
138 public function flushContent () {
139 // Is a previous opened group still open?
140 if ($this->ifGroupOpenedPreviously()) {
142 $this->closePreviousGroupByContent("</div>");
146 $content = $this->renderContent();
148 // Get template engine
149 $templateInstance = $this->getTemplateInstance();
151 // Add content to variable
152 $templateInstance->assignVariable($this->getLinkName(), $content);
156 * Adds a link group (like the form group is) with some raw language to the
159 * @param $groupId Id string of the group
160 * @param $groupText Text for this group to add
163 public function addLinkGroup ($groupId, $groupText) {
164 // Is a group with that name open?
165 if ($this->ifGroupIsOpened($groupId)) {
166 // Then close it here
167 $this->closePreviousGroupByContent("</div>");
169 // Is a previous opened group still open?
170 if ($this->ifGroupOpenedPreviously()) {
172 $this->closePreviousGroupByContent("</div>");
175 // Generate the group content
176 $content = sprintf("<div id=\"group_%s_%s\">%s",
177 $this->getLinkName(),
182 // Open the new group
183 $this->openGroupByIdContent($groupId, $content);
188 * Adds text (note) to the previously opened group or throws an exception
189 * if no previous group was opened.
191 * @param $groupNote Note to be added to a group
193 * @throws NoGroupOpenedException If no previous group was opened
195 public function addLinkNote ($groupNote) {
196 // Check if a previous group was opened
197 if (!$this->ifGroupOpenedPreviously()) {
198 // No group was opened before!
199 throw new NoGroupOpenedException(array($this, $groupNote), self::EXCEPTION_GROUP_NOT_OPENED);
202 // Add the content to the previous group
203 $this->addContentToPreviousGroup($groupNote);
207 * Adds a link to the previously opened group or throws an exception if no group has been opened
209 * @param $linkAction Action (action=xxx) value for the link
210 * @param $linkText Link text and title (title="xxx") for the link
212 * @throws NoGroupOpenedException If no previous group was opened
214 public function addActionLink ($linkAction, $linkText) {
215 // Check if a previous group was opened
216 if (!$this->ifGroupOpenedPreviously()) {
217 // No group was opened before!
218 throw new NoGroupOpenedException(array($this, $linkAction."(".$linkText.")"), self::EXCEPTION_GROUP_NOT_OPENED);
221 // Default parameter seperator is &
222 $seperator = "&";
224 // Is there a question mark in?
225 $linkArray = explode("?", $this->getLinkBase());
226 if (count($linkArray) == 0) {
232 $action = sprintf("%saction=%s",
237 // Renders the link content
238 $linkContent = $this->renderLinkContentWithTextExtraContent($linkText, $action);
240 // Add the content to the previous group
241 $this->addContentToPreviousGroup($linkContent);
245 * Adds a default link (no extra parameters) to the content with specified
246 * language id string.
248 * @param $languageId Language id string to use
251 public function addLinkWithTextById ($languageId) {
252 // Resolve the language string
253 $languageResolved = $this->getLanguageInstance()->getMessage($languageId);
256 $linkContent = $this->renderLinkContentWithTextExtraContent($languageResolved);
258 // Add the content to the previous group
259 $this->addContentToPreviousGroup($linkContent);