function scroll_to_top_init in scroll to top 7.2

Same name and namespace in other branches

1. 6.2 scroll_to_top.module \scroll_to_top_init()
2. 6 scroll_to_top.module \scroll_to_top_init()
3. 7 scroll_to_top.module \scroll_to_top_init()

Implementation of hook_init().

File

./scroll_to_top.module, line 11

Provide scroll to top link.

Code

function scroll_to_top_init() {
  global $theme;
  if (variable_get('scroll_to_top_enable_admin_theme', TRUE) == TRUE || variable_get('scroll_to_top_enable_admin_theme', TRUE) == FALSE && $theme != variable_get('admin_theme')) {
    drupal_add_css(drupal_get_path('module', 'scroll_to_top') . '/scroll_to_top.css', array(
      'group' => CSS_DEFAULT,
      'every_page' => TRUE,
    ));
    drupal_add_js(drupal_get_path('module', 'scroll_to_top') . '/scroll_to_top.js');
    drupal_add_js(array(
      'scroll_to_top' => array(
        'label' => t(check_plain(variable_get('scroll_to_top_label', 'Back to top'))),
      ),
    ), 'setting');

    //building the css style
    $position = "";

    // Button position
    if (variable_get('scroll_to_top_position', 1) == 1) {
      $position = "#back-top { right:40px; }";
    }
    if (variable_get('scroll_to_top_position', 1) == 3) {
      $position = "#back-top { left:50%;margin:0px;}";
    }

    // Display label
    if (variable_get('scroll_to_top_display_text', TRUE) == FALSE) {
      $display = "span#link {display : none;}";
    }
    else {
      $display = "";
    }

    // background color on hover
    $bgcolor = "#back-top span#button { background-color: " . variable_get('scroll_to_top_bg_color_out', '#CCCCCC') . ";}";
    $bgcolor .= " #back-top span#button:hover {opacity:1;filter:alpha(opacity = 1);background-color: " . variable_get('scroll_to_top_bg_color_hover', '#777777') . ";}";
    $css = $position;
    $css .= $bgcolor;
    $css .= $display;
    drupal_add_css($css, 'inline');
  }
}