Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/themes/child-theme/js/custom-admin.js

@@ -0,0 +1,57 @@
+function mediaPicker(pickerid) {
+	var custom_uploader;
+	var row_id 
+    //e.preventDefault();
+	row_id = jQuery('#'+pickerid).prev().attr('id');
+
+    //If the uploader object has already been created, reopen the dialog
+    if (custom_uploader) {
+    	custom_uploader.open();
+    	return;
+    }
+
+    //Create the media window.
+    custom_uploader = wp.media.frames.file_frame = wp.media({
+        title: 'Insert Images',
+        button: {
+            text: 'Insert Images'
+        },
+		type: 'image',
+        multiple: false
+    });
+
+    //Insert Media Action. Preview image and insert values to image
+	custom_uploader.on('select', function(){
+	var selection = custom_uploader.state().get('selection');
+		selection.map( function( attachment ) {
+			attachment = attachment.toJSON();
+			//INSERT THE SRC IN INPUT FIELD
+			jQuery('#' + row_id).val(""+attachment.url+"").trigger('change');
+				//APPEND THE PREVIEW IMAGE
+				jQuery('#' + row_id).parent().find('.media-picker-preview, .media-picker-remove').remove();
+				if(attachment.sizes.medium){
+					jQuery('#' + row_id).parent().prepend('<img class="media-picker-preview" src="'+attachment.sizes.medium.url+'" /><span class="media-picker-remove">X</span>');
+				}else{
+					jQuery('#' + row_id).parent().prepend('<img class="media-picker-preview" src="'+attachment.url+'" /><span class="media-picker-remove">X</span>');
+				}
+
+		});
+		jQuery(".media-picker-remove").on('click',function(e) {
+			jQuery(this).parent().find('.media-picker').val('').trigger('change');
+			jQuery(this).parent().find('.media-picker-preview, .media-picker-remove').remove();
+		});
+	});
+    //OPEN THE MEDIA WINDOW
+    custom_uploader.open();
+
+}   
+
+jQuery(document).on( 'ready widget-updated widget-added', function() {
+	
+	//jQuery(".media-picker-remove").unbind( "click" );
+	jQuery(".media-picker-remove").on('click',function(e) {
+		jQuery(this).parent().find('.media-picker').val('').trigger('change');
+		jQuery(this).parent().find('.media-picker-preview, .media-picker-remove').remove();
+	});	 
+
+});