wp/wp-includes/js/tinymce/plugins/wpemoji/plugin.js
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     1 ( function( tinymce, wp ) {
       
     2 	tinymce.PluginManager.add( 'wpemoji', function( editor ) {
       
     3 		var typing,
       
     4 			env = tinymce.Env,
       
     5 			ua = window.navigator.userAgent,
       
     6 			isWin = ua.indexOf( 'Windows' ) > -1,
       
     7 			isWin8 = ( function() {
       
     8 				var match = ua.match( /Windows NT 6\.(\d)/ );
       
     9 
       
    10 				if ( match && match[1] > 1 ) {
       
    11 					return true;
       
    12 				}
       
    13 
       
    14 				return false;
       
    15 			}());
       
    16 
       
    17 		if ( ! wp || ! wp.emoji || ! wp.emoji.replaceEmoji ) {
       
    18 			return;
       
    19 		}
       
    20 
       
    21 		function setImgAttr( image ) {
       
    22 			image.className = 'emoji';
       
    23 			image.setAttribute( 'data-mce-resize', 'false' );
       
    24 			image.setAttribute( 'data-mce-placeholder', '1' );
       
    25 			image.setAttribute( 'data-wp-emoji', '1' );
       
    26 		}
       
    27 
       
    28 		function replaceEmoji( node ) {
       
    29 			var imgAttr = {
       
    30 				'data-mce-resize': 'false',
       
    31 				'data-mce-placeholder': '1',
       
    32 				'data-wp-emoji': '1'
       
    33 			};
       
    34 
       
    35 			wp.emoji.parse( node, { imgAttr: imgAttr } );
       
    36 		}
       
    37 
       
    38 		// Test if the node text contains emoji char(s) and replace.
       
    39 		function parseNode( node ) {
       
    40 			var selection, bookmark;
       
    41 
       
    42 			if ( node && window.twemoji && window.twemoji.test( node.textContent || node.innerText ) ) {
       
    43 				if ( env.webkit ) {
       
    44 					selection = editor.selection;
       
    45 					bookmark = selection.getBookmark();
       
    46 				}
       
    47 
       
    48 				replaceEmoji( node );
       
    49 
       
    50 				if ( env.webkit ) {
       
    51 					selection.moveToBookmark( bookmark );
       
    52 				}
       
    53 			}
       
    54 		}
       
    55 
       
    56 		if ( isWin8 ) {
       
    57 			// Windows 8+ emoji can be "typed" with the onscreen keyboard.
       
    58 			// That triggers the normal keyboard events, but not the 'input' event.
       
    59 			// Thankfully it sets keyCode 231 when the onscreen keyboard inserts any emoji.
       
    60 			editor.on( 'keyup', function( event ) {
       
    61 				if ( event.keyCode === 231 ) {
       
    62 					parseNode( editor.selection.getNode() );
       
    63 				}
       
    64 			} );
       
    65 		} else if ( ! isWin ) {
       
    66 			// In MacOS inserting emoji doesn't trigger the stanradr keyboard events.
       
    67 			// Thankfully it triggers the 'input' event.
       
    68 			// This works in Android and iOS as well.
       
    69 			editor.on( 'keydown keyup', function( event ) {
       
    70 				typing = ( event.type === 'keydown' );
       
    71 			} );
       
    72 
       
    73 			editor.on( 'input', function() {
       
    74 				if ( typing ) {
       
    75 					return;
       
    76 				}
       
    77 
       
    78 				parseNode( editor.selection.getNode() );
       
    79 			});
       
    80 		}
       
    81 
       
    82 		editor.on( 'setcontent', function( event ) {
       
    83 			var selection = editor.selection,
       
    84 				node = selection.getNode();
       
    85 
       
    86 			if ( window.twemoji && window.twemoji.test( node.textContent || node.innerText ) ) {
       
    87 				replaceEmoji( node );
       
    88 
       
    89 				// In IE all content in the editor is left selected after wp.emoji.parse()...
       
    90 				// Collapse the selection to the beginning.
       
    91 				if ( env.ie && env.ie < 9 && event.load && node && node.nodeName === 'BODY' ) {
       
    92 					selection.collapse( true );
       
    93 				}
       
    94 			}
       
    95 		} );
       
    96 
       
    97 		// Convert Twemoji compatible pasted emoji replacement images into our format.
       
    98 		editor.on( 'PastePostProcess', function( event ) {
       
    99 			if ( window.twemoji ) {
       
   100 				tinymce.each( editor.dom.$( 'img.emoji', event.node ), function( image ) {
       
   101 					if ( image.alt && window.twemoji.test( image.alt ) ) {
       
   102 						setImgAttr( image );
       
   103 					}
       
   104 				});
       
   105 			}
       
   106 		});
       
   107 
       
   108 		editor.on( 'postprocess', function( event ) {
       
   109 			if ( event.content ) {
       
   110 				event.content = event.content.replace( /<img[^>]+data-wp-emoji="[^>]+>/g, function( img ) {
       
   111 					var alt = img.match( /alt="([^"]+)"/ );
       
   112 
       
   113 					if ( alt && alt[1] ) {
       
   114 						return alt[1];
       
   115 					}
       
   116 
       
   117 					return img;
       
   118 				});
       
   119 			}
       
   120 		} );
       
   121 
       
   122 		editor.on( 'resolvename', function( event ) {
       
   123 			if ( event.target.nodeName === 'IMG' && editor.dom.getAttrib( event.target, 'data-wp-emoji' ) ) {
       
   124 				event.preventDefault();
       
   125 			}
       
   126 		} );
       
   127 	} );
       
   128 } )( window.tinymce, window.wp );