diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/htmloutputter.php | 353 | ||||
-rw-r--r-- | lib/util.php | 151 |
2 files changed, 354 insertions, 150 deletions
diff --git a/lib/htmloutputter.php b/lib/htmloutputter.php new file mode 100644 index 000000000..b3b2a5ae4 --- /dev/null +++ b/lib/htmloutputter.php @@ -0,0 +1,353 @@ +<?php +/** + * Laconica, the distributed open-source microblogging tool + * + * Low-level generator for HTML + * + * PHP version 5 + * + * LICENCE: This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * @category Output + * @package Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @author Sarven Capadisli <csarven@controlyourself.ca> + * @copyright 2008 Control Yourself, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +if (!defined('LACONICA')) { + exit(1); +} + +require_once INSTALLDIR.'/lib/xmloutputter.php'; + +define('PAGE_TYPE_PREFS', + 'text/html,application/xhtml+xml,'. + 'application/xml;q=0.3,text/xml;q=0.2'); + +/** + * Low-level generator for HTML + * + * Abstracts some of the code necessary for HTML generation. Especially + * has methods for generating HTML form elements. Note that these have + * been created kind of haphazardly, not with an eye to making a general + * HTML-creation class. + * + * @category Output + * @package Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @author Sarven Capadisli <csarven@controlyourself.ca> + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + * @see Action + * @see HTMLOutputter + */ + +class HTMLOutputter extends XMLOutputter +{ + /** + * Constructor + * + * Just wraps the XMLOutputter constructor. + * + * @param string $output URI to output to, default = stdout + * @param boolean $indent Whether to indent output, default true + */ + + function __construct($output='php://output', $indent=true) + { + parent::__construct($output, $indent); + } + + /** + * Start an HTML document + * + * If $type isn't specified, will attempt to do content negotiation. + * + * Attempts to do content negotiation for language, also. + * + * @param string $type MIME type to use; default is to do negotation. + * + * @todo extract content negotiation code to an HTTP module or class. + * + * @return void + */ + + function startHTML($type=null) + { + if (!$type) { + $httpaccept = isset($_SERVER['HTTP_ACCEPT']) ? + $_SERVER['HTTP_ACCEPT'] : null; + + // XXX: allow content negotiation for RDF, RSS, or XRDS + + $cp = common_accept_to_prefs($httpaccept); + $sp = common_accept_to_prefs(PAGE_TYPE_PREFS); + + $type = common_negotiate_type($cp, $sp); + + if (!$type) { + common_user_error(_('This page is not available in a '. + 'media type you accept'), 406); + exit(0); + } + } + + header('Content-Type: '.$type); + + $this->startXML('html', + '-//W3C//DTD XHTML 1.0 Strict//EN', + 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'); + + // FIXME: correct language for interface + + $language = common_language(); + + $this->elementStart('html', array('xmlns' => 'http://www.w3.org/1999/xhtml', + 'xml:lang' => $language, + 'lang' => $language)); + } + + /** + * Output an HTML text input element + * + * Despite the name, it is specifically for outputting a + * text input element, not other <input> elements. It outputs + * a cluster of elements, including a <label> and an associated + * instructions span. + * + * @param string $id element ID, must be unique on page + * @param string $label text of label for the element + * @param string $value value of the element, default null + * @param string $instructions instructions for valid input + * + * @todo add a $name parameter + * @todo add a $maxLength parameter + * @todo add a $size parameter + * + * @return void + */ + + function input($id, $label, $value=null, $instructions=null) + { + $this->elementStart('p'); + $this->element('label', array('for' => $id), $label); + $attrs = array('name' => $id, + 'type' => 'text', + 'class' => 'input_text', + 'id' => $id); + if ($value) { + $attrs['value'] = htmlspecialchars($value); + } + $this->element('input', $attrs); + if ($instructions) { + $this->element('span', 'input_instructions', $instructions); + } + $this->elementEnd('p'); + } + + /** + * output an HTML checkbox and associated elements + * + * Note that the value is default 'true' (the string), which can + * be used by Action::boolean() + * + * @param string $id element ID, must be unique on page + * @param string $label text of label for the element + * @param string $checked if the box is checked, default false + * @param string $instructions instructions for valid input + * @param string $value value of the checkbox, default 'true' + * @param string $disabled show the checkbox disabled, default false + * + * @return void + * + * @todo add a $name parameter + */ + + function checkbox($id, $label, $checked=false, $instructions=null, + $value='true', $disabled=false) + { + $this->elementStart('p'); + $attrs = array('name' => $id, + 'type' => 'checkbox', + 'class' => 'checkbox', + 'id' => $id); + if ($value) { + $attrs['value'] = htmlspecialchars($value); + } + if ($checked) { + $attrs['checked'] = 'checked'; + } + if ($disabled) { + $attrs['disabled'] = 'true'; + } + $this->element('input', $attrs); + $this->text(' '); + $this->element('label', array('class' => 'checkbox_label', + 'for' => $id), + $label); + $this->text(' '); + if ($instructions) { + $this->element('span', 'input_instructions', $instructions); + } + $this->elementEnd('p'); + } + + /** + * output an HTML combobox/select and associated elements + * + * $content is an array of key-value pairs for the dropdown, where + * the key is the option value attribute and the value is the option + * text. (Careful on the overuse of 'value' here.) + * + * @param string $id element ID, must be unique on page + * @param string $label text of label for the element + * @param array $content options array, value => text + * @param string $instructions instructions for valid input + * @param string $blank_select whether to have a blank entry, default false + * @param string $selected selected value, default null + * + * @return void + * + * @todo add a $name parameter + */ + + function dropdown($id, $label, $content, $instructions=null, + $blank_select=false, $selected=null) + { + $this->elementStart('p'); + $this->element('label', array('for' => $id), $label); + $this->elementStart('select', array('id' => $id, 'name' => $id)); + if ($blank_select) { + $this->element('option', array('value' => '')); + } + foreach ($content as $value => $option) { + if ($value == $selected) { + $this->element('option', array('value' => $value, + 'selected' => $value), + $option); + } else { + $this->element('option', array('value' => $value), $option); + } + } + $this->elementEnd('select'); + if ($instructions) { + $this->element('span', 'input_instructions', $instructions); + } + $this->elementEnd('p'); + } + + /** + * output an HTML hidden element + * + * $id is re-used as name + * + * @param string $id element ID, must be unique on page + * @param string $value hidden element value, default null + * + * @return void + * + * @todo add a $name parameter + */ + + function hidden($id, $value) + { + $this->element('input', array('name' => $id, + 'type' => 'hidden', + 'id' => $id, + 'value' => $value)); + } + + /** + * output an HTML password input and associated elements + * + * @param string $id element ID, must be unique on page + * @param string $label text of label for the element + * @param string $instructions instructions for valid input + * + * @return void + * + * @todo add a $name parameter + */ + + function password($id, $label, $instructions=null) + { + $this->elementStart('p'); + $this->element('label', array('for' => $id), $label); + $attrs = array('name' => $id, + 'type' => 'password', + 'class' => 'password', + 'id' => $id); + $this->element('input', $attrs); + if ($instructions) { + $this->element('span', 'input_instructions', $instructions); + } + $this->elementEnd('p'); + } + + /** + * output an HTML submit input and associated elements + * + * @param string $id element ID, must be unique on page + * @param string $label text of the button + * @param string $cls class of the button, default 'submit' + * + * @return void + * + * @todo add a $name parameter + */ + + function submit($id, $label, $cls='submit') + { + $this->elementStart('p'); + $this->element('input', array('type' => 'submit', + 'id' => $id, + 'name' => $id, + 'class' => $cls, + 'value' => $label)); + $this->elementEnd('p'); + } + + /** + * output an HTML textarea and associated elements + * + * @param string $id element ID, must be unique on page + * @param string $label text of label for the element + * @param string $content content of the textarea, default none + * @param string $instructions instructions for valid input + * + * @return void + * + * @todo add a $name parameter + * @todo add a $cols parameter + * @todo add a $rows parameter + */ + + function textarea($id, $label, $content=null, $instructions=null) + { + $this->elementStart('p'); + $this->element('label', array('for' => $id), $label); + $this->element('textarea', array('rows' => 3, + 'cols' => 40, + 'name' => $id, + 'id' => $id), + ($content) ? $content : ''); + if ($instructions) { + $this->element('span', 'input_instructions', $instructions); + } + $this->elementEnd('p'); + } +} diff --git a/lib/util.php b/lib/util.php index dc26a705b..914257608 100644 --- a/lib/util.php +++ b/lib/util.php @@ -17,7 +17,7 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -/* XXX: break up into separate modules (HTTP, HTML, user, files) */ +/* XXX: break up into separate modules (HTTP, user, files) */ // Show a server error @@ -108,8 +108,6 @@ function common_init_language() } } -define('PAGE_TYPE_PREFS', 'text/html,application/xhtml+xml,application/xml;q=0.3,text/xml;q=0.2'); - function common_show_header($pagetitle, $callable=null, $data=null, $headercall=null) { @@ -194,38 +192,6 @@ function common_show_header($pagetitle, $callable=null, $data=null, $headercall= common_element_start('div', array('id' => 'content')); } -function common_start_html($type=null, $indent=true) -{ - - if (!$type) { - $httpaccept = isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : null; - - // XXX: allow content negotiation for RDF, RSS, or XRDS - - $type = common_negotiate_type(common_accept_to_prefs($httpaccept), - common_accept_to_prefs(PAGE_TYPE_PREFS)); - - if (!$type) { - common_user_error(_('This page is not available in a media type you accept'), 406); - exit(0); - } - } - - header('Content-Type: '.$type); - - common_start_xml('html', - '-//W3C//DTD XHTML 1.0 Strict//EN', - 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd', $indent); - - // FIXME: correct language for interface - - $language = common_language(); - - common_element_start('html', array('xmlns' => 'http://www.w3.org/1999/xhtml', - 'xml:lang' => $language, - 'lang' => $language)); -} - function common_show_footer() { global $xw, $config; @@ -321,121 +287,6 @@ function common_menu_item($url, $text, $title=null, $is_selected=false) common_element_end('li'); } -function common_input($id, $label, $value=null,$instructions=null) -{ - common_element_start('p'); - common_element('label', array('for' => $id), $label); - $attrs = array('name' => $id, - 'type' => 'text', - 'class' => 'input_text', - 'id' => $id); - if ($value) { - $attrs['value'] = htmlspecialchars($value); - } - common_element('input', $attrs); - if ($instructions) { - common_element('span', 'input_instructions', $instructions); - } - common_element_end('p'); -} - -function common_checkbox($id, $label, $checked=false, $instructions=null, $value='true', $disabled=false) -{ - common_element_start('p'); - $attrs = array('name' => $id, - 'type' => 'checkbox', - 'class' => 'checkbox', - 'id' => $id); - if ($value) { - $attrs['value'] = htmlspecialchars($value); - } - if ($checked) { - $attrs['checked'] = 'checked'; - } - if ($disabled) { - $attrs['disabled'] = 'true'; - } - common_element('input', $attrs); - common_text(' '); - common_element('label', array('class' => 'checkbox_label', 'for' => $id), $label); - common_text(' '); - if ($instructions) { - common_element('span', 'input_instructions', $instructions); - } - common_element_end('p'); -} - -function common_dropdown($id, $label, $content, $instructions=null, $blank_select=false, $selected=null) -{ - common_element_start('p'); - common_element('label', array('for' => $id), $label); - common_element_start('select', array('id' => $id, 'name' => $id)); - if ($blank_select) { - common_element('option', array('value' => '')); - } - foreach ($content as $value => $option) { - if ($value == $selected) { - common_element('option', array('value' => $value, 'selected' => $value), $option); - } else { - common_element('option', array('value' => $value), $option); - } - } - common_element_end('select'); - if ($instructions) { - common_element('span', 'input_instructions', $instructions); - } - common_element_end('p'); -} -function common_hidden($id, $value) -{ - common_element('input', array('name' => $id, - 'type' => 'hidden', - 'id' => $id, - 'value' => $value)); -} - -function common_password($id, $label, $instructions=null) -{ - common_element_start('p'); - common_element('label', array('for' => $id), $label); - $attrs = array('name' => $id, - 'type' => 'password', - 'class' => 'password', - 'id' => $id); - common_element('input', $attrs); - if ($instructions) { - common_element('span', 'input_instructions', $instructions); - } - common_element_end('p'); -} - -function common_submit($id, $label, $cls='submit') -{ - global $xw; - common_element_start('p'); - common_element('input', array('type' => 'submit', - 'id' => $id, - 'name' => $id, - 'class' => $cls, - 'value' => $label)); - common_element_end('p'); -} - -function common_textarea($id, $label, $content=null, $instructions=null) -{ - common_element_start('p'); - common_element('label', array('for' => $id), $label); - common_element('textarea', array('rows' => 3, - 'cols' => 40, - 'name' => $id, - 'id' => $id), - ($content) ? $content : ''); - if ($instructions) { - common_element('span', 'input_instructions', $instructions); - } - common_element_end('p'); -} - function common_timezone() { if (common_logged_in()) { |