jQuery plugin to add common checkable menu items checkbox and radio and more features to jQuery.contextMenu.

A very useful jQuery plugin jQuery.contextMenu supports text, textarea, checkbox, radio, etc., as item.type. Those allow you to embed form elements in the menu.
Those may be useful in special cases, aside from whether users welcome a form that appears via right-click or not.
But two types checkbox and radio are very popular UI many apps need, and behavior of those differs from that of common menu UI many apps have because those are embedded form elements. For example, those get a focus and tab-stop, a user can’t make the focus move through to other menu items by pressing arrow keys. And also, those don’t keep own state by itself, the states are cleared when the menu is reopened.
This jQuery.contextMenuCommon plugin wraps jQuery.contextMenu, and adds checkbox and radio menu types that work like common menu UI users usually use. Also, it supports sub-labels such as shortcut-keys, dynamic changing, and so on.

checkbox and radio menu types like common menu UI are supported.
Font Awesome icons are supported.
Disabled menu items are grayed-out like common menu UI. Included icons and mouse cursor are also controlled.
Sub-label like displaying shortcut-keys by common menu UI is supported.

Load jQuery.contextMenuCommon (2 files css and js) after jQuery.contextMenu.  
Since jQuery.contextMenuCommon wraps jQuery.contextMenu, it works as jQuery.contextMenu completely, except additional features. See jQuery.contextMenu Documentation for basic usage.
Each item object that is included in items in constructor options accepts ‘checkbox’ and ‘radio’ as value of type property.
For example:
$.contextMenuCommon({  selector: ‘#trigger’,  items: {     fontBold: {      label: ‘Bold Font’,      type: ‘checkbox’    },     fontSize: {      label: ‘Font Size’,      items: {        size1: {          label: ‘Small’,          type: ‘radio’        },        size2: {          label: ‘Medium’,          type: ‘radio’        },        size3: {          label: ‘Large’,          type: ‘radio’        }      }    }   }});
You can specify a value property of each menu item, that value is got when the menu item is in the specified state.
There are two way to get a current value (or state).

A value of checked property of each menu item is updated synchronously with the state that is changed by user or your app.
value method returns a current value.

For example:
var items = {   fontWeight: {    label: ‘Bold Font’,    type: ‘checkbox’,    value: [‘normal’, ‘bold’]    // For user: “Do you want Bold Font?” -> “Yes” or “No”    // For your app: Current value of `fontWeight` -> ‘bold’ or ‘normal’  },   fontSize: {    label: ‘Font Size’,    items: {      size1: {        label: ‘Small’,        type: ‘radio’,        radiogroup: ‘fontSize’,        value: ‘8pt’      },      size2: {        label: ‘Medium’,        type: ‘radio’,        radiogroup: ‘fontSize’,        value: ’12pt’,        checked: true      },      size3: {        label: ‘Large’,        type: ‘radio’,        radiogroup: ‘fontSize’,        value: ’16pt’      }    }    // For user: “Please choose Font Size” -> “Small”, “Medium” or “Large”    // For your app: Current value of `fontSize` -> ‘8pt’, ’12pt’ or ’16pt’  } }; $.contextMenuCommon({selector: ‘#trigger’, items: items}); $(‘#button’).click(function() {  console.log(‘================ Get `checked`’);  console.log(‘fontWeight: ‘ + items.fontWeight.checked);  console.log(‘fontSize size1: ‘ + items.fontSize.items.size1.checked);  console.log(‘fontSize size2: ‘ + items.fontSize.items.size2.checked);  console.log(‘fontSize size3: ‘ + items.fontSize.items.size3.checked);  console.log(‘================ Get value’);  var $trigger = $(‘#trigger’);  console.log(‘fontWeight: ‘ + $trigger.contextMenuCommon(‘value’, ‘fontWeight’));  console.log(‘fontSize: ‘ + $trigger.contextMenuCommon(‘value’, ‘fontSize’));});
checkbox type
A menu item that ‘checkbox’ is specified to type property works as checkbox menu item.
For example:
// In constructor optionsitems: {   fontBold: {    label: ‘Bold Font’,    type: ‘checkbox’  } }
The checkbox menu item accepts following properties:
(All properties are optional)
Alias: selected
Type: boolean
Default: false
An initial or current state to indicate whether the checkbox of this menu item is checked or not.
This is updated synchronously with the state that is changed by user or your app.
For example:
// In constructor optionsitems: {  item: {    label: ‘Item’,    type: ‘checkbox’,    checked: true // This checkbox is checked when constructed  }}
Type: Array or any
Default: [false, true]
If something other than an array is specified, it is considered as [false, ].
When the checkbox of this menu item is checked, value method returns value[1] as a current value, otherwise value[0].
For example:
// In constructor optionsitems: {  appendTo: {    label: ‘Add to document’,    type: ‘checkbox’,    value: [$header, document]  }}// When user checked ‘Add to Document’, `appendTo` value is `document`.// When user did not check it, `appendTo` value is `$header`.
For example, set reversed booleans, that is, get true when the checkbox is not checked, and get false when it is checked:
// In constructor optionsitems: {  overwrite: { // This `overwrite` is meaningful name.    label: ‘Confirm existing file’,    type: ‘checkbox’,    value: [true, false] // reversed  }}
radio type
A menu item that ‘radio’ is specified to type property works as radio menu item.
For example:
// In constructor optionsitems: {   small: {    label: ‘Small’,    type: ‘radio’  },   large: {    label: ‘Large’,    type: ‘radio’  } }
The radio menu item accepts following properties:
(All properties are optional)
Alias: radio
Type: string
Default: undefined
A string to group the menu items and identify the group.
In one list (i.e. one items object’s children), items that radiogroup is not specified are grouped into one group.
For example, there are five groups:
// In constructor optionsitems: {  a1: {    label: ‘Group A (1)’,    type: ‘radio’  },  a2: {    label: ‘Group A (2)’,    type: ‘radio’  },  a3: {    label: ‘Group A (3)’,    type: ‘radio’  },   sep1: { type: ‘cm_seperator’ },   b1: {    label: ‘Group B (1)’,    type: ‘radio’,    radiogroup: ‘groupB’  },  b2: {    label: ‘Group B (2)’,    type: ‘radio’,    radiogroup: ‘groupB’  },  b3: {    label: ‘Group B (3)’,    type: ‘radio’,    radiogroup: ‘groupB’  },   sep2: { type: ‘cm_seperator’ },   c: {    label: ‘Group C’,    items: {      c1: {        label: ‘(1)’,        type: ‘radio’      },      c2: {        label: ‘(2)’,        type: ‘radio’      },      c3: {        label: ‘(3)’,        type: ‘radio’      }    }  },   sep3: { type: ‘cm_seperator’ },   de: {    label: ‘Group D and E’,    items: {      d1: {        label: ‘Group D (1)’,        type: ‘radio’      },      d2: {        label: ‘Group D (2)’,        type: ‘radio’      },      d3: {        label: ‘Group D (3)’,        type: ‘radio’      },       sep4: { type: ‘cm_seperator’ },       e1: {        label: ‘Group E (1)’,        type: ‘radio’,        radiogroup: ‘groupE’      },      e2: {        label: ‘Group E (2)’,        type: ‘radio’,        radiogroup: ‘groupE’      },      e3: {        label: ‘Group E (3)’,        type: ‘radio’,        radiogroup: ‘groupE’      }    }  }}
Alias: selected
Type: boolean
Default: first item in a group is true, others are false
An initial or current state to indicate whether the radio of this menu item is checked or not.
This is updated synchronously with the state that is changed by user or your app.
Only a last menu item true is specified in a group is checked. By default, a first menu item in a group is checked.
For example:
// In constructor optionsitems: {  item1: {    label: ‘Item 1’,    type: ‘radio’  },  item2: {    label: ‘Item 2’,    type: ‘radio’,    checked: true // This radio is checked when constructed  },  item3: {    label: ‘Item 3’,    type: ‘radio’  }}
Type: any
Default: zero-based index number in a group
When the radio of this menu item is checked, value method returns value as a current value of a group that includes this menu item.
In other words, a current value of a group is a value of checked menu item in the group.
For example:
// In constructor optionsitems: {  a: {    label: ‘Item A’,    type: ‘radio’,    value: ‘A’ // ‘A’ is returned when this item is checked.  },  b: {    label: ‘Item B’,    type: ‘radio’ // `1` (index) is returned when this item is checked.  },  c: {    label: ‘Item C’,    type: ‘radio’,    value: ‘C’ // ‘C’ is returned when this item is checked.  }}
currentOrNewValue = $trigger.contextMenuCommon(‘value’, itemKeyOrRadioGroup[, newValue])
Return a current value of the target. If newValue is passed, update a value of the target before return.
The target is a menu item or a group of radio menu items itemKeyOrRadioGroup indicates. itemKeyOrRadioGroup is a key of an items object, or a string as radiogroup. It is discriminated automatically.
A returned value differs depending on checked state of the target menu item or menu items in the target group.
If itemKeyOrRadioGroup indicates a radio menu item, a current value of a group that includes that menu item is returned (i.e. it is considered as that itemKeyOrRadioGroup indicates the group). Therefore, note that a returned value might be not value of the target menu item. (Because a value of a group is a value of checked menu item in the group. And another item in that group might be checked.)
Also, newValue is a value in value array of the target checkbox menu item or value of any of radio menu items in the target group.
For example:
$.contextMenuCommon({  selector: ‘#trigger’,  items: {     fontWeight: {      label: ‘Bold Font’,      type: ‘checkbox’,      value: [‘normal’, ‘bold’]    },     fontSize: {      label: ‘Font Size’,      items: {        size1: {          label: ‘Small’,          type: ‘radio’,          radiogroup: ‘fontSize’,          value: ‘8pt’        },        size2: {          label: ‘Medium’,          type: ‘radio’,          radiogroup: ‘fontSize’,          value: ’12pt’        },        size3: {          label: ‘Large’,          type: ‘radio’,          radiogroup: ‘fontSize’,          value: ’16pt’        }      }    }   }}); var $trigger = $(‘#trigger’); $(‘#button-get-values’).click(function() {  console.log(‘fontWeight: ‘ + $trigger.contextMenuCommon(‘value’, ‘fontWeight’));  console.log(‘fontSize: ‘ + $trigger.contextMenuCommon(‘value’, ‘fontSize’));}); $(‘#button-set-weight’).click(function() {  $trigger.contextMenuCommon(‘value’, ‘fontWeight’, ‘bold’);}); $(‘#button-set-size’).click(function() {  $trigger.contextMenuCommon(‘value’, ‘fontSize’, ’12pt’);});
$trigger = $trigger.contextMenuCommon(‘click’, itemKey)
Emulate a click operation by user.
The state of checkbox or radio, checked and value property are updated.
This is mainly used to toggle the checkbox.
For example, the following two codes work same:
$.contextMenuCommon({  selector: ‘#trigger’,  items: {     fontWeight: {      label: ‘Bold Font’,      type: ‘checkbox’,      value: [‘normal’, ‘bold’]    },     fontSize: {      label: ‘Font Size’,      items: {        size1: {          label: ‘Small’,          type: ‘radio’,          radiogroup: ‘fontSize’,          value: ‘8pt’        },        size2: {          label: ‘Medium’,          type: ‘radio’,          radiogroup: ‘fontSize’,          value: ’12pt’        },        size3: {          label: ‘Large’,          type: ‘radio’,          radiogroup: ‘fontSize’,          value: ’16pt’        }      }    }   }}); var $trigger = $(‘#trigger’); $trigger.contextMenuCommon(‘click’, ‘fontWeight’);$trigger.contextMenuCommon(‘click’, ‘size2’);
// … same to above var $trigger = $(‘#trigger’); var currentValue = $trigger.contextMenuCommon(‘value’, ‘fontWeight’);$trigger.contextMenuCommon(‘value’, ‘fontWeight’,  currentValue === ‘normal’ ? ‘bold’ : ‘normal’);$trigger.contextMenuCommon(‘value’, ‘fontSize’, ’12pt’);
Alias: name
Type: string, jQuery, DOM or Array
A string that is specified to label property of a menu item is shown to user on the menu item.
If an array is specified, the second string is shown as sub-label that is positioned to the right of the label. It is usually used to indicate a shortcut-keys of the command.
For example:
// In constructor optionsitems: {  a: {    label: ‘Create New’, // no sub-label    icon: ‘add’  },  b: {    label: [‘Open File…’, ‘Ctrl+O’],    icon: ‘fa fa-folder-open-o’ // Icon by Font Awesome  },  c: {    label: [‘Save’, ‘Ctrl+S’],    icon: ‘fa fa-floppy-o’ // Icon by Font Awesome  },  d: {    label: [‘Save As…’, ‘Ctrl+Shift+S’]  },  e: {    label: [‘Quit’, ‘u2318Q’], // symbol for OS X    icon: ‘quit’  }}
Note that the shortcut-keys are not a access-keys, and jQuery.contextMenuCommon only shows it. And your app has to handle those key events, and so on if your app supports shortcut-keys, because shortcut-keys have to work without depending on the menu.
Also, you can specify a jQuery object or a DOM element instead of a string to a label and sub-label. It is used to decorate the label or sub-label, change those dynamically, or customize those more, or you can do anything you want. Note that you can also break a layout of the menu easily.
For example:
// In constructor optionsitems: {  a: {    label: $(‘Open My File…‘)  },  b: {    label: [‘Save’, $(‘Ctrl+S‘)]  }}
For example, change dynamically, and add animation:
var label = $(‘Download Data File‘),  item, rate, span, isLoading; function progress() {  if (!item) {    item = label.parent().css({      backgroundImage: ‘url(‘data:image/svg+xml;utf8,’ +        ‘’ +        ‘%200%2025%2025%22%20width%3D%2225%22%20height%3D%2225%22%3E%3Crect%20x%3D%22’ +        ‘0%22%20y%3D%220%22%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D’ +        ‘%22rgba%28168%2C241%2C163%2C0.8%29%22%2F%3E%3C%2Fsvg%3E’)’,      // Chrome does not support adjusting background-size.      // backgroundSize: ‘0 100%’,      backgroundSize: ‘0’,      backgroundRepeat: ‘repeat-y’    });    rate = span = 0;  }  if ((rate += span) < 100) {    span = Math.floor(Math.random() * 26) + 5; // [5, 30]    if (span > 100 – rate) { span = 100 – rate; }    item.animate({backgroundSize: rate + span + ‘%’},      Math.floor(Math.random() * 2501) + 500, // [500, 3000]      progress);  } else {    isLoading = false;    rate = span = 0;    label.text(‘Download Next File’);  }} $.contextMenuCommon({  selector: ‘#trigger’,  items: {    download: {      label: label,      icon: ‘fa fa-download’,      callback: function() {        if (isLoading) {          isLoading = false;          label.text(‘Restart Download’);          item.stop();        } else {          isLoading = true;          label.text(‘Stop Download’);          if (rate === 0 && span === 0) { item.css(‘backgroundSize’, ‘0’); } // next          progress();        }        return false;      }    }  }});
icon property accepts class names of basic icons, and class names of Font Awesome icons such as fa fa-folder-open-o also.
For example:
// In constructor optionsitems: {  a: {    label: ‘Basic Icon’,    icon: ‘edit’  },  b: {    label: ‘Font Awesome Icon’,    icon: ‘fa fa-github-alt’    //  }}

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