diff js/foundation/foundation.dropdown.js @ 0:7abe02bf29ec

initial commit
author Alex Krolick <whokilledtheelectricmonk@gmail.com>
date Sat, 07 Nov 2015 18:04:42 -0800
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/foundation/foundation.dropdown.js	Sat Nov 07 18:04:42 2015 -0800
@@ -0,0 +1,468 @@
+;(function ($, window, document, undefined) {
+  'use strict';
+
+  Foundation.libs.dropdown = {
+    name : 'dropdown',
+
+    version : '5.5.3',
+
+    settings : {
+      active_class : 'open',
+      disabled_class : 'disabled',
+      mega_class : 'mega',
+      align : 'bottom',
+      is_hover : false,
+      hover_timeout : 150,
+      opened : function () {},
+      closed : function () {}
+    },
+
+    init : function (scope, method, options) {
+      Foundation.inherit(this, 'throttle');
+
+      $.extend(true, this.settings, method, options);
+      this.bindings(method, options);
+    },
+
+    events : function (scope) {
+      var self = this,
+          S = self.S;
+
+      S(this.scope)
+        .off('.dropdown')
+        .on('click.fndtn.dropdown', '[' + this.attr_name() + ']', function (e) {
+          var settings = S(this).data(self.attr_name(true) + '-init') || self.settings;
+          if (!settings.is_hover || Modernizr.touch) {
+            e.preventDefault();
+            if (S(this).parent('[data-reveal-id]').length) {
+              e.stopPropagation();
+            }
+            self.toggle($(this));
+          }
+        })
+        .on('mouseenter.fndtn.dropdown', '[' + this.attr_name() + '], [' + this.attr_name() + '-content]', function (e) {
+          var $this = S(this),
+              dropdown,
+              target;
+
+          clearTimeout(self.timeout);
+
+          if ($this.data(self.data_attr())) {
+            dropdown = S('#' + $this.data(self.data_attr()));
+            target = $this;
+          } else {
+            dropdown = $this;
+            target = S('[' + self.attr_name() + '="' + dropdown.attr('id') + '"]');
+          }
+
+          var settings = target.data(self.attr_name(true) + '-init') || self.settings;
+
+          if (S(e.currentTarget).data(self.data_attr()) && settings.is_hover) {
+            self.closeall.call(self);
+          }
+
+          if (settings.is_hover) {
+            self.open.apply(self, [dropdown, target]);
+          }
+        })
+        .on('mouseleave.fndtn.dropdown', '[' + this.attr_name() + '], [' + this.attr_name() + '-content]', function (e) {
+          var $this = S(this);
+          var settings;
+
+          if ($this.data(self.data_attr())) {
+              settings = $this.data(self.data_attr(true) + '-init') || self.settings;
+          } else {
+              var target   = S('[' + self.attr_name() + '="' + S(this).attr('id') + '"]'),
+                  settings = target.data(self.attr_name(true) + '-init') || self.settings;
+          }
+
+          self.timeout = setTimeout(function () {
+            if ($this.data(self.data_attr())) {
+              if (settings.is_hover) {
+                self.close.call(self, S('#' + $this.data(self.data_attr())));
+              }
+            } else {
+              if (settings.is_hover) {
+                self.close.call(self, $this);
+              }
+            }
+          }.bind(this), settings.hover_timeout);
+        })
+        .on('click.fndtn.dropdown', function (e) {
+          var parent = S(e.target).closest('[' + self.attr_name() + '-content]');
+          var links  = parent.find('a');
+
+          if (links.length > 0 && parent.attr('aria-autoclose') !== 'false') {
+              self.close.call(self, S('[' + self.attr_name() + '-content]'));
+          }
+
+          if (e.target !== document && !$.contains(document.documentElement, e.target)) {
+            return;
+          }
+
+          if (S(e.target).closest('[' + self.attr_name() + ']').length > 0) {
+            return;
+          }
+
+          if (!(S(e.target).data('revealId')) &&
+            (parent.length > 0 && (S(e.target).is('[' + self.attr_name() + '-content]') ||
+              $.contains(parent.first()[0], e.target)))) {
+            e.stopPropagation();
+            return;
+          }
+
+          self.close.call(self, S('[' + self.attr_name() + '-content]'));
+        })
+        .on('opened.fndtn.dropdown', '[' + self.attr_name() + '-content]', function () {
+          self.settings.opened.call(this);
+        })
+        .on('closed.fndtn.dropdown', '[' + self.attr_name() + '-content]', function () {
+          self.settings.closed.call(this);
+        });
+
+      S(window)
+        .off('.dropdown')
+        .on('resize.fndtn.dropdown', self.throttle(function () {
+          self.resize.call(self);
+        }, 50));
+
+      this.resize();
+    },
+
+    close : function (dropdown) {
+      var self = this;
+      dropdown.each(function (idx) {
+        var original_target = $('[' + self.attr_name() + '=' + dropdown[idx].id + ']') || $('aria-controls=' + dropdown[idx].id + ']');
+        original_target.attr('aria-expanded', 'false');
+        if (self.S(this).hasClass(self.settings.active_class)) {
+          self.S(this)
+            .css(Foundation.rtl ? 'right' : 'left', '-99999px')
+            .attr('aria-hidden', 'true')
+            .removeClass(self.settings.active_class)
+            .prev('[' + self.attr_name() + ']')
+            .removeClass(self.settings.active_class)
+            .removeData('target');
+
+          self.S(this).trigger('closed.fndtn.dropdown', [dropdown]);
+        }
+      });
+      dropdown.removeClass('f-open-' + this.attr_name(true));
+    },
+
+    closeall : function () {
+      var self = this;
+      $.each(self.S('.f-open-' + this.attr_name(true)), function () {
+        self.close.call(self, self.S(this));
+      });
+    },
+
+    open : function (dropdown, target) {
+      this
+        .css(dropdown
+        .addClass(this.settings.active_class), target);
+      dropdown.prev('[' + this.attr_name() + ']').addClass(this.settings.active_class);
+      dropdown.data('target', target.get(0)).trigger('opened.fndtn.dropdown', [dropdown, target]);
+      dropdown.attr('aria-hidden', 'false');
+      target.attr('aria-expanded', 'true');
+      dropdown.focus();
+      dropdown.addClass('f-open-' + this.attr_name(true));
+    },
+
+    data_attr : function () {
+      if (this.namespace.length > 0) {
+        return this.namespace + '-' + this.name;
+      }
+
+      return this.name;
+    },
+
+    toggle : function (target) {
+      if (target.hasClass(this.settings.disabled_class)) {
+        return;
+      }
+      var dropdown = this.S('#' + target.data(this.data_attr()));
+      if (dropdown.length === 0) {
+        // No dropdown found, not continuing
+        return;
+      }
+
+      this.close.call(this, this.S('[' + this.attr_name() + '-content]').not(dropdown));
+
+      if (dropdown.hasClass(this.settings.active_class)) {
+        this.close.call(this, dropdown);
+        if (dropdown.data('target') !== target.get(0)) {
+          this.open.call(this, dropdown, target);
+        }
+      } else {
+        this.open.call(this, dropdown, target);
+      }
+    },
+
+    resize : function () {
+      var dropdown = this.S('[' + this.attr_name() + '-content].open');
+      var target = $(dropdown.data("target"));
+
+      if (dropdown.length && target.length) {
+        this.css(dropdown, target);
+      }
+    },
+
+    css : function (dropdown, target) {
+      var left_offset = Math.max((target.width() - dropdown.width()) / 2, 8),
+          settings = target.data(this.attr_name(true) + '-init') || this.settings,
+          parentOverflow = dropdown.parent().css('overflow-y') || dropdown.parent().css('overflow');
+
+      this.clear_idx();
+
+
+
+      if (this.small()) {
+        var p = this.dirs.bottom.call(dropdown, target, settings);
+
+        dropdown.attr('style', '').removeClass('drop-left drop-right drop-top').css({
+          position : 'absolute',
+          width : '95%',
+          'max-width' : 'none',
+          top : p.top
+        });
+
+        dropdown.css(Foundation.rtl ? 'right' : 'left', left_offset);
+      }
+      // detect if dropdown is in an overflow container
+      else if (parentOverflow !== 'visible') {
+        var offset = target[0].offsetTop + target[0].offsetHeight;
+
+        dropdown.attr('style', '').css({
+          position : 'absolute',
+          top : offset
+        });
+
+        dropdown.css(Foundation.rtl ? 'right' : 'left', left_offset);
+      }
+      else {
+
+        this.style(dropdown, target, settings);
+      }
+
+      return dropdown;
+    },
+
+    style : function (dropdown, target, settings) {
+      var css = $.extend({position : 'absolute'},
+        this.dirs[settings.align].call(dropdown, target, settings));
+
+      dropdown.attr('style', '').css(css);
+    },
+
+    // return CSS property object
+    // `this` is the dropdown
+    dirs : {
+      // Calculate target offset
+      _base : function (t, s) {
+        var o_p = this.offsetParent(),
+            o = o_p.offset(),
+            p = t.offset();
+
+        p.top -= o.top;
+        p.left -= o.left;
+
+        //set some flags on the p object to pass along
+        p.missRight = false;
+        p.missTop = false;
+        p.missLeft = false;
+        p.leftRightFlag = false;
+
+        //lets see if the panel will be off the screen
+        //get the actual width of the page and store it
+        var actualBodyWidth;
+        var windowWidth = window.innerWidth;
+        
+        if (document.getElementsByClassName('row')[0]) {
+          actualBodyWidth = document.getElementsByClassName('row')[0].clientWidth;
+        } else {
+          actualBodyWidth = windowWidth;
+        }
+
+        var actualMarginWidth = (windowWidth - actualBodyWidth) / 2;
+        var actualBoundary = actualBodyWidth;
+
+        if (!this.hasClass('mega') && !s.ignore_repositioning) {
+          var outerWidth = this.outerWidth();
+          var o_left = t.offset().left;
+		  
+          //miss top
+          if (t.offset().top <= this.outerHeight()) {
+            p.missTop = true;
+            actualBoundary = windowWidth - actualMarginWidth;
+            p.leftRightFlag = true;
+          }
+
+          //miss right
+          if (o_left + outerWidth > o_left + actualMarginWidth && o_left - actualMarginWidth > outerWidth) {
+            p.missRight = true;
+            p.missLeft = false;
+          }
+
+          //miss left
+          if (o_left - outerWidth <= 0) {
+            p.missLeft = true;
+            p.missRight = false;
+          }
+        }
+
+        return p;
+      },
+
+      top : function (t, s) {
+        var self = Foundation.libs.dropdown,
+            p = self.dirs._base.call(this, t, s);
+
+        this.addClass('drop-top');
+
+        if (p.missTop == true) {
+          p.top = p.top + t.outerHeight() + this.outerHeight();
+          this.removeClass('drop-top');
+        }
+
+        if (p.missRight == true) {
+          p.left = p.left - this.outerWidth() + t.outerWidth();
+        }
+
+        if (t.outerWidth() < this.outerWidth() || self.small() || this.hasClass(s.mega_menu)) {
+          self.adjust_pip(this, t, s, p);
+        }
+
+        if (Foundation.rtl) {
+          return {left : p.left - this.outerWidth() + t.outerWidth(),
+            top : p.top - this.outerHeight()};
+        }
+
+        return {left : p.left, top : p.top - this.outerHeight()};
+      },
+
+      bottom : function (t, s) {
+        var self = Foundation.libs.dropdown,
+            p = self.dirs._base.call(this, t, s);
+
+        if (p.missRight == true) {
+          p.left = p.left - this.outerWidth() + t.outerWidth();
+        }
+
+        if (t.outerWidth() < this.outerWidth() || self.small() || this.hasClass(s.mega_menu)) {
+          self.adjust_pip(this, t, s, p);
+        }
+
+        if (self.rtl) {
+          return {left : p.left - this.outerWidth() + t.outerWidth(), top : p.top + t.outerHeight()};
+        }
+
+        return {left : p.left, top : p.top + t.outerHeight()};
+      },
+
+      left : function (t, s) {
+        var p = Foundation.libs.dropdown.dirs._base.call(this, t, s);
+
+        this.addClass('drop-left');
+
+        if (p.missLeft == true) {
+          p.left =  p.left + this.outerWidth();
+          p.top = p.top + t.outerHeight();
+          this.removeClass('drop-left');
+        }
+
+        return {left : p.left - this.outerWidth(), top : p.top};
+      },
+
+      right : function (t, s) {
+        var p = Foundation.libs.dropdown.dirs._base.call(this, t, s);
+
+        this.addClass('drop-right');
+
+        if (p.missRight == true) {
+          p.left = p.left - this.outerWidth();
+          p.top = p.top + t.outerHeight();
+          this.removeClass('drop-right');
+        } else {
+          p.triggeredRight = true;
+        }
+
+        var self = Foundation.libs.dropdown;
+
+        if (t.outerWidth() < this.outerWidth() || self.small() || this.hasClass(s.mega_menu)) {
+          self.adjust_pip(this, t, s, p);
+        }
+
+        return {left : p.left + t.outerWidth(), top : p.top};
+      }
+    },
+
+    // Insert rule to style psuedo elements
+    adjust_pip : function (dropdown, target, settings, position) {
+      var sheet = Foundation.stylesheet,
+          pip_offset_base = 8;
+
+      if (dropdown.hasClass(settings.mega_class)) {
+        pip_offset_base = position.left + (target.outerWidth() / 2) - 8;
+      } else if (this.small()) {
+        pip_offset_base += position.left - 8;
+      }
+
+      this.rule_idx = sheet.cssRules.length;
+
+      //default
+      var sel_before = '.f-dropdown.open:before',
+          sel_after  = '.f-dropdown.open:after',
+          css_before = 'left: ' + pip_offset_base + 'px;',
+          css_after  = 'left: ' + (pip_offset_base - 1) + 'px;';
+
+      if (position.missRight == true) {
+        pip_offset_base = dropdown.outerWidth() - 23;
+        sel_before = '.f-dropdown.open:before',
+        sel_after  = '.f-dropdown.open:after',
+        css_before = 'left: ' + pip_offset_base + 'px;',
+        css_after  = 'left: ' + (pip_offset_base - 1) + 'px;';
+      }
+
+      //just a case where right is fired, but its not missing right
+      if (position.triggeredRight == true) {
+        sel_before = '.f-dropdown.open:before',
+        sel_after  = '.f-dropdown.open:after',
+        css_before = 'left:-12px;',
+        css_after  = 'left:-14px;';
+      }
+
+      if (sheet.insertRule) {
+        sheet.insertRule([sel_before, '{', css_before, '}'].join(' '), this.rule_idx);
+        sheet.insertRule([sel_after, '{', css_after, '}'].join(' '), this.rule_idx + 1);
+      } else {
+        sheet.addRule(sel_before, css_before, this.rule_idx);
+        sheet.addRule(sel_after, css_after, this.rule_idx + 1);
+      }
+    },
+
+    // Remove old dropdown rule index
+    clear_idx : function () {
+      var sheet = Foundation.stylesheet;
+
+      if (typeof this.rule_idx !== 'undefined') {
+        sheet.deleteRule(this.rule_idx);
+        sheet.deleteRule(this.rule_idx);
+        delete this.rule_idx;
+      }
+    },
+
+    small : function () {
+      return matchMedia(Foundation.media_queries.small).matches &&
+        !matchMedia(Foundation.media_queries.medium).matches;
+    },
+
+    off : function () {
+      this.S(this.scope).off('.fndtn.dropdown');
+      this.S('html, body').off('.fndtn.dropdown');
+      this.S(window).off('.fndtn.dropdown');
+      this.S('[data-dropdown-content]').off('.fndtn.dropdown');
+    },
+
+    reflow : function () {}
+  };
+}(jQuery, window, window.document));