// variables for the field and option names

var $site_icon_name = 'site_icon';

var $site_icon;

var $lh_iphone_app_web_app_capable_field_name = 'apple-mobile-web-app-capable';

var $lh_iphone_app_title_field_name = 'apple-mobile-web-app-title';

var $lh_iphone_app_apple_touch_startup_image = 'apple-touch-startup-image';

var $lh_iphone_app_maintain_state_field_name = 'js_helper-maintain_state';

var $lh_iphone_app_show_webapp_prompt_field_name = 'js_helper-show_addtohome_prompt';

var $lh_iphone_app_opt_name = 'lh_iphone_web_app-options';

var $lh_iphone_app_apple_touch_icon_sizes;

var $lh_iphone_app_apple_touch_startup_image_sizes;

var $filename;

function create_startup_image_sizes() {

$touch_icon_sizes[0] = array('height' => '460','width' => '320');

$touch_icon_sizes[1] = array('height' => '920','width' => '640');

$touch_icon_sizes[2] = array('height' => '960','width' => '640');

$touch_icon_sizes[3] = array('height' => '1096', 'width' => '640');

return $touch_icon_sizes;

}

function create_touch_icon_sizes() {

$startup_image_sizes[0] = array('height' => '57','width' => '57');

$startup_image_sizes[1] = array('height' => '72', 'width' => '72');

$startup_image_sizes[2] = array('height' => '114', 'width' => '114');

$startup_image_sizes[3] = array('height' => '144', 'width' => '144');

return $startup_image_sizes;

}

function get_image_sizes( $size = '' ) {

global $_wp_additional_image_sizes;

$sizes = array();

$get_intermediate_image_sizes = get_intermediate_image_sizes();

// Create the full array with sizes and crop info

foreach( $get_intermediate_image_sizes as $_size ) {

if ( in_array( $_size, array( 'thumbnail', 'medium', 'large' ) ) ) {

$sizes[ $_size ]['width'] = get_option( $_size . '_size_w' );

$sizes[ $_size ]['height'] = get_option( $_size . '_size_h' );

$sizes[ $_size ]['crop'] = (bool) get_option( $_size . '_crop' );

} elseif ( isset( $_wp_additional_image_sizes[ $_size ] ) ) {

$sizes[ $_size ] = array(

'width' => $_wp_additional_image_sizes[ $_size ]['width'],

'height' => $_wp_additional_image_sizes[ $_size ]['height'],

'crop' => $_wp_additional_image_sizes[ $_size ]['crop']

);

}

}

// Get only 1 size if found

if ( $size ) {

if( isset( $sizes[ $size ] ) ) {

return $sizes[ $size ];

} else {

return false;

}

}

return $sizes;

}

function check_image_size($id,$size){

remove_filter( 'image_downsize', array( Jetpack_Photon::instance(), 'filter_image_downsize' ) );

$imagedata = wp_get_attachment_image_src( $id, $size );

add_filter( 'image_downsize', array( Jetpack_Photon::instance(), 'filter_image_downsize' ), 10, 3 );

if ($imagedata){

$size = $this->get_image_sizes($size);

if (($imagedata[1] == $size['width']) and ($imagedata[2] == $size['height'])){

return $imagedata[0];

}

} else {

return false;

}

}

function add_new_image_sizes_to_wp() {

foreach( $this->lh_iphone_app_apple_touch_icon_sizes as $size ){

add_image_size($this->site_icon_name.'_'.$size['width'].'x'.$size['height'], $size['width'], $size['height'], true );

}

foreach( $this->lh_iphone_app_apple_touch_startup_image_sizes as $size ){

add_image_size( $this->lh_iphone_app_apple_touch_startup_image.'_'.$size['width'].'x'.$size['height'], $size['width'], $size['height'], true );

}

}

function add_meta_to_head() {

$options = get_option($this->lh_iphone_app_opt_name);

echo "\n<!-- Start LH ios Web App -->\n";

echo "<meta name=\"viewport\" content=\"width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;\" />\n";

if ($options[$this->lh_iphone_app_title_field_name]){

echo "<meta name=\"apple-mobile-web-app-title\" content=\"".$options[$this->lh_iphone_app_title_field_name]."\" />\n";

}

if ($options[$this->lh_iphone_app_web_app_capable_field_name] == 1){

echo "<meta name=\"apple-mobile-web-app-capable\" content=\"yes\" />\n";

}

foreach( $this->lh_iphone_app_apple_touch_icon_sizes as $size ){

if ($href = $this->check_image_size($this->site_icon, $this->site_icon_name.'_'.$size['width'].'x'.$size['height'] )){

echo "<link rel=\"apple-touch-icon-precomposed\" sizes=\"".$size['width']."x".$size['height']."\" href=\"".$href."\" />\n";

}

}

foreach( $this->lh_iphone_app_apple_touch_startup_image_sizes as $size ){

if ($href = $this->check_image_size($options[$this->lh_iphone_app_apple_touch_startup_image], $this->lh_iphone_app_apple_touch_startup_image.'_'.$size['width'].'x'.$size['height'] )){

echo "<link rel=\"".$this->lh_iphone_app_apple_touch_startup_image."\" sizes=\"".$size['width']."x".$size['height']."\" href=\"".$href."\" />\n";

}

}

echo "<meta name=\"apple-mobile-web-app-status-bar-style\" content=\"black\" />\n";

echo "<!-- End LH ios Web App -->\n\n";

}

function enqueue_scripts() {

$options = get_option($this->lh_iphone_app_opt_name);

if ($options[$this->lh_iphone_app_show_webapp_prompt_field_name] == 1){

wp_enqueue_script('lh_iphone_app-add_to_home_script', plugins_url( '/scripts/init_prompt.js' , __FILE__ ), array(), '1.1', true );

}

if ($options[$this->lh_iphone_app_web_app_capable_field_name] == 1){

wp_enqueue_script('lh_iphone_app-web_app_capable', plugins_url( '/scripts/app_overrides.js' , __FILE__ ),array(), '1.1', true );

}

if ($options[$this->lh_iphone_app_maintain_state_field_name] == 1){

wp_enqueue_script('lh_iphone_app-maintain_state', plugins_url( '/scripts/app_state.js' , __FILE__ ),array(), '1.1', true );

}

}

// Now include admin GUI functions

// Prepare the media uploader

function add_admin_scripts(){

if (isset($_GET['page']) && $_GET['page'] == $this->filename) {

// must be running 3.5+ to use color pickers and image upload

wp_enqueue_media();

wp_register_script('lh-ios-app-admin', LH_IOS_WEB_APP_PLUGIN_URL.'scripts/uploader.js', array('jquery','media-upload','thickbox'));

wp_enqueue_script('lh-ios-app-admin');

}

}

function plugin_menu() {

add_options_page('LH Ios Web App Options', 'LH Ios Web App', 'manage_options', $this->filename, array($this,"plugin_options"));

}

function plugin_options() {

if (!current_user_can('manage_options')){

wp_die( __('You do not have sufficient permissions to access this page.') );

}

$lh_iphone_app_hidden_field_name = 'lh_iphone_app_submit_hidden';

if( isset($_POST[ $lh_iphone_app_hidden_field_name ]) && $_POST[ $lh_iphone_app_hidden_field_name ] == 'Y' ) {

// Read their posted value

$lh_iphone_app_options[ $this->lh_iphone_app_web_app_capable_field_name ] = $_POST[ $this->lh_iphone_app_web_app_capable_field_name ];

$lh_iphone_app_options[ $this->lh_iphone_app_title_field_name ] = $_POST[ $this->lh_iphone_app_title_field_name];

if ($_POST[ $this->lh_iphone_app_apple_touch_startup_image."-url" ] != ""){

$lh_iphone_app_options[ $this->lh_iphone_app_apple_touch_startup_image ] = $_POST[ $this->lh_iphone_app_apple_touch_startup_image ];

}

$lh_iphone_app_options[ $this->lh_iphone_app_maintain_state_field_name ] = $_POST[ $this->lh_iphone_app_maintain_state_field_name ];

$lh_iphone_app_options[ $this->lh_iphone_app_show_webapp_prompt_field_name ] = $_POST[ $this->lh_iphone_app_show_webapp_prompt_field_name ];

// Save the posted value in the database

update_option( $this->lh_iphone_app_opt_name , $lh_iphone_app_options );

// Put an settings updated message on the screen

?>

<div class="updated"><p><strong><?php _e('settings saved.', 'lh-ios-web-app' ); ?></strong></p></div>

<?php

} else {

$lh_iphone_app_options = get_option($this->lh_iphone_app_opt_name);

}

echo "<h1>" . __( 'LH Ios Web App Settings', 'lh-ios-web-app' ) . "</h1>";

?>

<form name="form1" method="post" action="">

<input type="hidden" name="<?php echo $lh_iphone_app_hidden_field_name; ?>" value="Y">

<p><?php _e("Web App Capable:", 'lh-ios-web-app'); ?>

<select name="<?php echo $this->lh_iphone_app_web_app_capable_field_name; ?>" id="<?php echo $this->lh_iphone_app_web_app_capable_field_name; ?>">

<option value="1" <?php if ($lh_iphone_app_options[$this->lh_iphone_app_web_app_capable_field_name] == 1){ echo 'selected="selected"'; } ?>>Yes</option>

<option value="0" <?php if ($lh_iphone_app_options[$this->lh_iphone_app_web_app_capable_field_name] == 0){ echo 'selected="selected"';} ?>>No</option>

</select>

<?php if ($lh_iphone_app_options[$this->lh_iphone_app_web_app_capable_field_name] == 1){ ?>

<p><?php _e('Title of your Web App: ', 'lh-ios-web-app'); ?>

<input type="text" name="<?php echo $this->lh_iphone_app_title_field_name; ?>" id="<?php echo $this->lh_iphone_app_title_field_name; ?>" value="<?php echo $lh_iphone_app_options[$this->lh_iphone_app_title_field_name]; ?>" />

(<a href="http://lhero.org/plugins/lh-ios-web-app/#<?php echo $this->lh_iphone_app_title_field_name; ?>">What does this mean?</a>)

</p>

<p><?php _e("Startup Image url: ", 'lh-ios-web-app'); ?>

<input type="hidden" name="<?php echo $this->lh_iphone_app_apple_touch_startup_image; ?>" id="<?php echo $this->lh_iphone_app_apple_touch_startup_image; ?>" value="<?php echo $lh_iphone_app_options[$this->lh_iphone_app_apple_touch_startup_image]; ?>" size="10" />

<input type="url" name="<?php echo $this->lh_iphone_app_apple_touch_startup_image; ?>-url" id="<?php echo $this->lh_iphone_app_apple_touch_startup_image; ?>-url" value="<?php echo wp_get_attachment_url($lh_iphone_app_options[$this->lh_iphone_app_apple_touch_startup_image]); ?>" size="50" />

<input type="button" class="button" name="<?php echo $this->lh_iphone_app_apple_touch_startup_image; ?>-upload_button" id="<?php echo $this->lh_iphone_app_apple_touch_startup_image; ?>-upload_button" value="Upload/Select Image" />

</p>

<p><?php _e("Maintain App State: ", 'lh-ios-web-app'); ?>

<select name="<?php echo $this->lh_iphone_app_maintain_state_field_name; ?>" id="<?php echo $this->lh_iphone_app_maintain_state_field_name; ?>">

<option value="1" <?php if ($lh_iphone_app_options[$this->lh_iphone_app_maintain_state_field_name] == 1){ echo 'selected="selected"'; } ?>>Yes</option>

<option value="0" <?php if ($lh_iphone_app_options[$this->lh_iphone_app_maintain_state_field_name] == 0){ echo 'selected="selected"';} ?>>No</option>

</select>

(<a href="http://lhero.org/plugins/lh-ios-web-app/#<?php echo $this->lh_iphone_app_maintain_state_field_name; ?>">What does this mean?</a>)

</p>

<p>

<?php _e("Show Web App Prompt:", 'lh-ios-web-app'); ?>

<select name="<?php echo $this->lh_iphone_app_show_webapp_prompt_field_name; ?>" id="<?php echo $this->lh_iphone_app_show_webapp_prompt_field_name; ?>">

<option value="1" <?php if ($lh_iphone_app_options[$this->lh_iphone_app_show_webapp_prompt_field_name] == 1){ echo 'selected="selected"'; } ?>>Yes</option>

<option value="0" <?php if ($lh_iphone_app_options[$this->lh_iphone_app_show_webapp_prompt_field_name] == 0){ echo 'selected="selected"';} ?>>No</option>

</select>

(<a href="http://lhero.org/plugins/lh-ios-web-app/#<?php echo $this->lh_iphone_app_show_webapp_prompt_field_name; ?>">What does this mean?</a>)

</p>

<?php } ?>

<p class="submit">

<input type="submit" name="Submit" class="button-primary" value="<?php esc_attr_e('Save Changes') ?>" />

</p>

</form>

<?php

}

// add a settings link next to deactive / edit

public function add_settings_link( $links, $file ) {

if( $file == $this->filename ){

$links[] = '<a href="'. admin_url( 'options-general.php?page=' ).$this->filename.'">Settings</a>';

}

return $links;

}

public function remove_apple_touch_site_icon_tag( $meta_tags ) {

foreach( $meta_tags as $meta_tag ) {

if (!strpos($meta_tag, "apple-touch-icon-precomposed")){

$tag[] = $meta_tag;

}

}

return $tag;

}

function __construct() {

$this->lh_iphone_app_apple_touch_icon_sizes = $this->create_touch_icon_sizes();

$this->lh_iphone_app_apple_touch_startup_image_sizes = $this->create_startup_image_sizes();

$this->filename = plugin_basename( __FILE__ );

$this->site_icon = get_option($this->site_icon_name);

add_action( 'init', array($this,"add_new_image_sizes_to_wp"));

add_action('wp_head', array($this,"add_meta_to_head"));

add_action( 'wp_enqueue_scripts', array($this,"enqueue_scripts"));

add_action('admin_enqueue_scripts', array($this,"add_admin_scripts"));

add_action('admin_menu', array($this,"plugin_menu"));

add_filter('plugin_action_links', array($this,"add_settings_link"), 10, 2);

add_filter( 'site_icon_meta_tags', array($this,"remove_apple_touch_site_icon_tag"), 10, 1);

}