Add Materialize.select.js

Materialize.select.js

+
+//;// Required for Meteor package, the use of window prevents export by Meteor
+(function(window){
+  if(window.Package){
+    Materialize = {};
+  } else {
+    window.Materialize = {};
+  }
+})(window);
+
+Materialize.guid = (function() {
+  function s4() {
+    return Math.floor((1 + Math.random()) * 0x10000)
+      .toString(16)
+      .substring(1);
+  }
+  return function() {
+    return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
+      s4() + '-' + s4() + s4() + s4();
+  };
+})();
+
+(function ($) {
+  // Add posibility to scroll to selected option
+  // usefull for select for example
+  $.fn.scrollTo = function(elem) {
+    $(this).scrollTop($(this).scrollTop() - $(this).offset().top + $(elem).offset().top);
+    return this;
+  };
+
+  $.fn.dropdown = function (option) {
+    var defaults = {
+      inDuration: 300,
+      outDuration: 225,
+      constrain_width: true, // Constrains width of dropdown to the activator
+      hover: false,
+      gutter: 0, // Spacing from edge
+      belowOrigin: false,
+      alignment: 'left'
+    };
+
+    this.each(function(){
+      var origin = $(this);
+      var popup = option.popup;
+      var options = $.extend({}, defaults, option);
+      var isFocused = false;
+
+      // Dropdown menu
+      var activates = $("#"+ origin.attr('data-activates'));
+
+      function updateOptions() {
+        if (origin.data('induration') !== undefined)
+          options.inDuration = origin.data('inDuration');
+        if (origin.data('outduration') !== undefined)
+          options.outDuration = origin.data('outDuration');
+        if (origin.data('constrainwidth') !== undefined)
+          options.constrain_width = origin.data('constrainwidth');
+        if (origin.data('hover') !== undefined)
+          options.hover = origin.data('hover');
+        if (origin.data('gutter') !== undefined)
+          options.gutter = origin.data('gutter');
+        if (origin.data('beloworigin') !== undefined)
+          options.belowOrigin = origin.data('beloworigin');
+        if (origin.data('alignment') !== undefined)
+          options.alignment = origin.data('alignment');
+      }
+
+      updateOptions();
+
+      // Attach dropdown to its activator
+      origin.after(activates);
+
+      /*
+       Helper function to position and resize dropdown.
+       Used in hover and click handler.
+       */
+      function placeDropdown(eventType) {
+        // Check for simultaneous focus and click events.
+        if (eventType === 'focus') {
+          isFocused = true;
+        }
+
+        // Check html data attributes
+        updateOptions();
+
+        // Set Dropdown state
+        activates.addClass('active');
+        origin.addClass('active');
+
+        // Constrain width
+        if (options.constrain_width === true) {
+          activates.css('width', origin.outerWidth());
+
+        } else {
+          activates.css('white-space', 'nowrap');
+        }
+
+        // Offscreen detection
+        var windowHeight = window.innerHeight;
+        var originHeight = origin.innerHeight();
+        var offsetLeft = origin.offset().left;
+        var offsetTop = origin.offset().top - $(window).scrollTop();
+        var currAlignment = options.alignment;
+        var gutterSpacing = 0;
+        var leftPosition = 0;
+
+        // Below Origin
+        var verticalOffset = 0;
+        if (options.belowOrigin === true) {
+          verticalOffset = originHeight;
+        }
+
+        // Check for scrolling positioned container.
+        var scrollOffset = 0;
+        var wrapper = origin.parent();
+        if (!wrapper.is('body') && wrapper[0].scrollHeight > wrapper[0].clientHeight) {
+          scrollOffset = wrapper[0].scrollTop;
+        }
+
+        if (offsetLeft + activates.innerWidth() > $(window).width()) {
+          // Dropdown goes past screen on right, force right alignment
+          currAlignment = 'right';
+
+        } else if (offsetLeft - activates.innerWidth() + origin.innerWidth() < 0) {
+          // Dropdown goes past screen on left, force left alignment
+          currAlignment = 'left';
+        }
+        // Vertical bottom offscreen detection
+        var popupHeight = popup && popup.innerHeight()
+            ? popup.innerHeight()
+            : 0;
+        if ((offsetTop + activates.innerHeight() > windowHeight) || (popupHeight && (offsetTop + activates.innerHeight() > popupHeight))) {
+          // If going upwards still goes offscreen, just crop height of dropdown.
+          if (offsetTop + originHeight - activates.innerHeight() < 0) {
+            var adjustedHeight = windowHeight - offsetTop - verticalOffset;
+            activates.css('max-height', adjustedHeight);
+          } else {
+            // Flow upwards.
+            if (!verticalOffset) {
+              verticalOffset += originHeight;
+            }
+            verticalOffset -= activates.innerHeight();
+          }
+        }
+
+        // Handle edge alignment
+        if (currAlignment === 'left') {
+          gutterSpacing = options.gutter;
+          leftPosition = origin.position().left + gutterSpacing;
+        }
+        else if (currAlignment === 'right') {
+          var offsetRight = origin.position().left + origin.outerWidth() - activates.outerWidth();
+          gutterSpacing = -options.gutter;
+          leftPosition =  offsetRight + gutterSpacing;
+        }
+
+        // Position dropdown
+        activates.css({
+          position: 'absolute',
+          top: origin.position().top + verticalOffset + scrollOffset,
+          left: leftPosition
+        });
+
+
+        // Show dropdown
+        activates.stop(true, true).css('opacity', 0)
+          .slideDown({
+            queue: false,
+            duration: options.inDuration,
+            easing: 'easeOutCubic',
+            complete: function() {
+              $(this).css('height', '').trigger('jspShowDropdown');
+            }
+          })
+          .animate( {opacity: 1}, {queue: false, duration: options.inDuration, easing: 'easeOutSine'});
+      }
+
+      function hideDropdown() {
+        // Check for simultaneous focus and click events.
+        isFocused = false;
+        activates.fadeOut(options.outDuration);
+        activates.removeClass('active');
+        origin.removeClass('active');
+        setTimeout(function() { activates.css('max-height', ''); }, options.outDuration);
+      }
+
+      // Hover
+      if (options.hover) {
+        var open = false;
+        origin.unbind('click.' + origin.attr('id'));
+        // Hover handler to show dropdown
+        origin.on('mouseenter', function(e){ // Mouse over
+          if (open === false) {
+            placeDropdown();
+            open = true;
+          }
+        });
+        origin.on('mouseleave', function(e){
+          // If hover on origin then to something other than dropdown content, then close
+          var toEl = e.toElement || e.relatedTarget; // added browser compatibility for target element
+          if(!$(toEl).closest('.dropdown-content').is(activates)) {
+            activates.stop(true, true);
+            hideDropdown();
+            open = false;
+          }
+        });
+
+        activates.on('mouseleave', function(e){ // Mouse out
+          var toEl = e.toElement || e.relatedTarget;
+          if(!$(toEl).closest('.dropdown-button').is(origin)) {
+            activates.stop(true, true);
+            hideDropdown();
+            open = false;
+          }
+        });
+
+        // Click
+      } else {
+        // Click handler to show dropdown
+        origin.unbind('click.' + origin.attr('id'));
+        origin.bind('click.'+origin.attr('id'), function(e){
+          if (!isFocused) {
+            if ( origin[0] == e.currentTarget &&
+              !origin.hasClass('active') &&
+              ($(e.target).closest('.dropdown-content').length === 0)) {
+              e.preventDefault(); // Prevents button click from moving window
+              placeDropdown('click');
+            }
+            // If origin is clicked and menu is open, close menu
+            else if (origin.hasClass('active')) {
+              hideDropdown();
+              $(document).unbind('click.'+ activates.attr('id') + ' touchstart.' + activates.attr('id'));
+            }
+            // If menu open, add click close handler to document
+            if (activates.hasClass('active')) {
+              $(document).bind('click.'+ activates.attr('id') + ' touchstart.' + activates.attr('id'), function (e) {
+                if (!activates.is(e.target) && !origin.is(e.target) && (!origin.find(e.target).length) ) {
+                  hideDropdown();
+                  $(document).unbind('click.'+ activates.attr('id') + ' touchstart.' + activates.attr('id'));
+                }
+              });
+            }
+          }
+        });
+
+      } // End else
+
+      // Listen to open and close event - useful for select component
+      origin.on('open', function(e, eventType) {
+        placeDropdown(eventType);
+      });
+      origin.on('close', hideDropdown);
+
+
+    });
+  }; // End dropdown plugin
+
+  /*******************
+   *  Select Plugin  *
+   ******************/
+  $.fn.material_select = function (callback, optionAdvanced) {
+    optionAdvanced = optionAdvanced || {};
+
+    $(this).each(function(){
+      var $select = $(this);
+
+      if ($select.hasClass('browser-default')) {
+        return; // Continue to next (return false breaks out of entire loop)
+      }
+
+      var multiple = $select.attr('multiple') ? true : false,
+        lastID = $select.data('select-id'); // Tear down structure if Select needs to be rebuilt
+
+      if (lastID) {
+        $select.parent().find('span.caret').remove();
+        $select.parent().find('input').remove();
+
+        $select.unwrap();
+        $('ul#select-options-'+lastID).remove();
+      }
+
+      // If destroying the select, remove the selelct-id and reset it to it's uninitialized state.
+      if(callback === 'destroy') {
+        $select.data('select-id', null).removeClass('initialized');
+        return;
+      }
+
+      var uniqueID = Materialize.guid();
+      $select.data('select-id', uniqueID);
+      var wrapper = $('<div class="select-wrapper"></div>');
+      wrapper.addClass($select.attr('class'));
+      var options = $('<ul id="select-options-' + uniqueID +'" class="dropdown-content select-dropdown ' + (multiple ? 'multiple-select-dropdown' : '') + '"></ul>'),
+        selectChildren = $select.children('option, optgroup'),
+        valuesSelected = [],
+        optionsHover = false;
+
+      var label = $select.find('option:selected').html() || $select.find('option:first').html() || "";
+
+      // Function that renders and appends the option taking into
+      // account type and possible image icon.
+      var appendOptionWithIcon = function(select, option, type) {
+        // Add disabled attr if disabled
+        var disabledClass = (option.is(':disabled')) ? 'disabled ' : '';
+        var optgroupClass = (type === 'optgroup-option') ? 'optgroup-option ' : '';
+
+        // add icons
+        var icon_url = option.data('icon');
+        var classes = option.attr('class');
+        if (!!icon_url) {
+          var classString = '';
+          if (!!classes) classString = ' class="' + classes + '"';
+
+          // Check for multiple type.
+          if (type === 'multiple') {
+            options.append($('<li class="' + disabledClass + '"><img src="' + icon_url + '"' + classString + '><span><input type="checkbox"' + disabledClass + '/><label></label>' + option.html() + '</span></li>'));
+          } else {
+            options.append($('<li class="' + disabledClass + optgroupClass + '"><img src="' + icon_url + '"' + classString + '><span>' + option.html() + '</span></li>'));
+          }
+          return true;
+        }
+
+        // Check for multiple type.
+        if (type === 'multiple') {
+          options.append($('<li class="' + disabledClass + '"><span><input type="checkbox"' + disabledClass + '/><label></label>' + option.html() + '</span></li>'));
+        } else {
+          options.append($('<li class="' + disabledClass + optgroupClass + '"><span>' + option.html() + '</span></li>'));
+        }
+      };
+
+      /* Create dropdown structure. */
+      if (selectChildren.length) {
+        selectChildren.each(function() {
+          if ($(this).is('option')) {
+            // Direct descendant option.
+            if (multiple) {
+              appendOptionWithIcon($select, $(this), 'multiple');
+
+            } else {
+              appendOptionWithIcon($select, $(this));
+            }
+          } else if ($(this).is('optgroup')) {
+            // Optgroup.
+            var selectOptions = $(this).children('option');
+            options.append($('<li class="optgroup"><span>' + $(this).attr('label') + '</span></li>'));
+
+            selectOptions.each(function() {
+              appendOptionWithIcon($select, $(this), 'optgroup-option');
+            });
+          }
+        });
+      }
+
+      options.find('li:not(.optgroup)').each(function (i) {
+        $(this).click(function (e) {
+          // Check if option element is disabled
+          if (!$(this).hasClass('disabled') && !$(this).hasClass('optgroup')) {
+            var selected = true;
+
+            if (multiple) {
+              $('input[type="checkbox"]', this).prop('checked', function(i, v) { return !v; });
+              selected = toggleEntryFromArray(valuesSelected, $(this).index(), $select);
+              $newSelect.trigger('focus');
+            } else {
+              options.find('li').removeClass('active');
+              $(this).toggleClass('active');
+              $newSelect.val($(this).text());
+            }
+
+            activateOption(options, $(this));
+            $select.find('option').eq(i).prop('selected', selected);
+            // Trigger onchange() event
+            $select.trigger('change');
+            if (typeof callback !== 'undefined') callback();
+          }
+
+          e.stopPropagation();
+        });
+      });
+
+      // Wrap Elements
+      $select.wrap(wrapper);
+      // Add Select Display Element
+      var dropdownIcon = $('<span class="caret">&#9660;</span>');
+      if ($select.is(':disabled'))
+        dropdownIcon.addClass('disabled');
+
+      // escape double quotes
+      var sanitizedLabelHtml = label.replace(/"/g, '&quot;');
+
+      var $newSelect = $('<input type="text" class="select-dropdown" readonly="true" ' + (($select.is(':disabled')) ? 'disabled' : '') + ' data-activates="select-options-' + uniqueID +'" value="'+ sanitizedLabelHtml +'"/>');
+      $select.before($newSelect);
+      $newSelect.before(dropdownIcon);
+
+      $newSelect.after(options);
+      // Check if section element is disabled
+      if (!$select.is(':disabled')) {
+        var optionDefault = {'hover': false, 'closeOnClick': false};
+
+        $newSelect.dropdown($.extend(optionDefault, optionAdvanced));
+      }
+
+      // Copy tabindex
+      if ($select.attr('tabindex')) {
+        $($newSelect[0]).attr('tabindex', $select.attr('tabindex'));
+      }
+
+      $select.addClass('initialized');
+
+      $newSelect.on({
+        'focus': function (){
+          if ($('ul.select-dropdown').not(options[0]).is(':visible')) {
+            $('input.select-dropdown').trigger('close');
+          }
+          if (!options.is(':visible')) {
+            $(this).trigger('open', ['focus']);
+            var label = $(this).val();
+            var selectedOption = options.find('li').filter(function() {
+              return $(this).text().toLowerCase() === label.toLowerCase();
+            })[0];
+            activateOption(options, selectedOption);
+          }
+        },
+        'click': function (e){
+          e.stopPropagation();
+        }
+      });
+
+      $newSelect.on('blur', function() {
+        if (!multiple) {
+          $(this).trigger('close');
+        }
+        options.find('li.selected').removeClass('selected');
+      });
+
+      options.hover(function() {
+        optionsHover = true;
+      }, function () {
+        optionsHover = false;
+      });
+
+      options.on('jspScrollToElement', function (e, elem) {
+        options.scrollTo(elem);
+      });
+
+      $(window).on({
+        'click': function () {
+          multiple && (optionsHover || $newSelect.trigger('close'));
+        }
+      });
+
+      // Add initial multiple selections.
+      if (multiple) {
+        $select.find("option:selected:not(:disabled)").each(function () {
+          var index = $(this).index();
+
+          toggleEntryFromArray(valuesSelected, index, $select);
+          options.find("li").eq(index).find(":checkbox").prop("checked", true);
+        });
+      }
+
+      // Make option as selected and scroll to selected position
+      var activateOption = function(collection, newOption) {
+        if (newOption) {
+          collection.find('li.selected').removeClass('selected');
+          var option = $(newOption);
+          option.addClass('selected');
+          options.trigger('jspScrollToElement', option);
+        }
+      };
+
+      // Allow user to search by typing
+      // this array is cleared after 1 second
+      var filterQuery = [],
+        onKeyDown = function(e){
+          // TAB - switch to another input
+          if(e.which == 9){
+            $newSelect.trigger('close');
+            return;
+          }
+
+          // ARROW DOWN WHEN SELECT IS CLOSED - open select options
+          if(e.which == 40 && !options.is(':visible')){
+            $newSelect.trigger('open');
+            return;
+          }
+
+          // ENTER WHEN SELECT IS CLOSED - submit form
+          if(e.which == 13 && !options.is(':visible')){
+            return;
+          }
+
+          e.preventDefault();
+
+          // CASE WHEN USER TYPE LETTERS
+          var letter = String.fromCharCode(e.which).toLowerCase(),
+            nonLetters = [9,13,27,38,40];
+          if (letter && (nonLetters.indexOf(e.which) === -1)) {
+            filterQuery.push(letter);
+
+            var string = filterQuery.join(''),
+              newOption = options.find('li').filter(function() {
+                return $(this).text().toLowerCase().indexOf(string) === 0;
+              })[0];
+
+            if (newOption) {
+              activateOption(options, newOption);
+            }
+          }
+
+          // ENTER - select option and close when select options are opened
+          if (e.which == 13) {
+            var activeOption = options.find('li.selected:not(.disabled)')[0];
+            if(activeOption){
+              $(activeOption).trigger('click');
+              if (!multiple) {
+                $newSelect.trigger('close');
+              }
+            }
+          }
+
+          // ARROW DOWN - move to next not disabled option
+          if (e.which == 40) {
+            if (options.find('li.selected').length) {
+              newOption = options.find('li.selected').next('li:not(.disabled)')[0];
+            } else {
+              newOption = options.find('li:not(.disabled)')[0];
+            }
+            activateOption(options, newOption);
+          }
+
+          // ESC - close options
+          if (e.which == 27) {
+            $newSelect.trigger('close');
+          }
+
+          // ARROW UP - move to previous not disabled option
+          if (e.which == 38) {
+            newOption = options.find('li.selected').prev('li:not(.disabled)')[0];
+            if(newOption)
+              activateOption(options, newOption);
+          }
+
+          // Automaticaly clean filter query so user can search again by starting letters
+          setTimeout(function(){ filterQuery = []; }, 1000);
+        };
+
+      $newSelect.on('keydown', onKeyDown);
+    });
+
+    function toggleEntryFromArray(entriesArray, entryIndex, select) {
+      var index = entriesArray.indexOf(entryIndex),
+        notAdded = index === -1;
+
+      if (notAdded) {
+        entriesArray.push(entryIndex);
+      } else {
+        entriesArray.splice(index, 1);
+      }
+
+      select.siblings('ul.dropdown-content').find('li').eq(entryIndex).toggleClass('active');
+
+      // use notAdded instead of true (to detect if the option is selected or not)
+      select.find('option').eq(entryIndex).prop('selected', notAdded);
+      setValueToInput(entriesArray, select);
+
+      return notAdded;
+    }
+
+    function setValueToInput(entriesArray, select) {
+      var value = '';
+
+      for (var i = 0, count = entriesArray.length; i < count; i++) {
+        var text = select.find('option').eq(entriesArray[i]).text();
+
+        i === 0 ? value += text : value += ', ' + text;
+      }
+
+      if (value === '') {
+        value = select.find('option:disabled').eq(0).text();
+      }
+
+      select.siblings('input.select-dropdown').val(value);
+    }
+  };
+
+}) (jQuery);
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