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wp-content/plugins/file-manager-advanced/application/library/js/commands/opendir.js

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+/**
+ * @class  elFinder command "opendir"
+ * Enter parent folder
+ *
+ * @author Naoki Sawada
+ **/  
+elFinder.prototype.commands.opendir = function() {
+	"use strict";
+	this.alwaysEnabled = true;
+	
+	this.getstate = function() {
+		var sel = this.fm.selected(),
+			cnt = sel.length,
+			wz;
+		if (cnt !== 1) {
+			return -1;
+		}
+		wz = this.fm.getUI('workzone');
+		return wz.hasClass('elfinder-search-result')? 0 : -1;
+	};
+	
+	this.exec = function(hashes) {
+		var fm    = this.fm,
+			dfrd  = $.Deferred(),
+			files = this.files(hashes),
+			cnt   = files.length,
+			hash, pcheck = null;
+
+		if (!cnt || !files[0].phash) {
+			return dfrd.reject();
+		}
+
+		hash = files[0].phash;
+		fm.trigger('searchend', { noupdate: true });
+		fm.request({
+			data   : {cmd  : 'open', target : hash},
+			notify : {type : 'open', cnt : 1, hideCnt : true},
+			syncOnFail : false
+		});
+		
+		return dfrd;
+	};
+
+};