initial

wp-content/plugins/file-manager-advanced/application/library/js/elFinder.history.js

@@ -0,0 +1,122 @@
+/**
+ * @class elFinder.history
+ * Store visited folders
+ * and provide "back" and "forward" methods
+ *
+ * @author Dmitry (dio) Levashov
+ */
+elFinder.prototype.history = function(fm) {
+	"use strict";
+	var self = this,
+		/**
+		 * Update history on "open" event?
+		 *
+		 * @type Boolean
+		 */
+		update = true,
+		/**
+		 * Directories hashes storage
+		 *
+		 * @type Array
+		 */
+		history = [],
+		/**
+		 * Current directory index in history
+		 *
+		 * @type Number
+		 */
+		current,
+		/**
+		 * Clear history
+		 *
+		 * @return void
+		 */
+		reset = function() {
+			history = [fm.cwd().hash];
+			current = 0;
+			update  = true;
+		},
+		/**
+		 * Browser native history object
+		 */
+		nativeHistory = (fm.options.useBrowserHistory && window.history && window.history.pushState)? window.history : null,
+		/**
+		 * Open prev/next folder
+		 *
+		 * @Boolen  open next folder?
+		 * @return jQuery.Deferred
+		 */
+		go = function(fwd) {
+			if ((fwd && self.canForward()) || (!fwd && self.canBack())) {
+				update = false;
+				return fm.exec('open', history[fwd ? ++current : --current]).fail(reset);
+			}
+			return $.Deferred().reject();
+		},
+		/**
+		 * Sets the native history.
+		 *
+		 * @param String thash target hash
+		 */
+		setNativeHistory = function(thash) {
+			if (nativeHistory && (! nativeHistory.state || nativeHistory.state.thash !== thash)) {
+				nativeHistory.pushState({thash: thash}, null, location.pathname + location.search + (thash? '#elf_' + thash : ''));
+			}
+		};
+	
+	/**
+	 * Return true if there is previous visited directories
+	 *
+	 * @return Boolen
+	 */
+	this.canBack = function() {
+		return current > 0;
+	};
+	
+	/**
+	 * Return true if can go forward
+	 *
+	 * @return Boolen
+	 */
+	this.canForward = function() {
+		return current < history.length - 1;
+	};
+	
+	/**
+	 * Go back
+	 *
+	 * @return void
+	 */
+	this.back = go;
+	
+	/**
+	 * Go forward
+	 *
+	 * @return void
+	 */
+	this.forward = function() {
+		return go(true);
+	};
+	
+	// bind to elfinder events
+	fm.bind('init', function() {
+		if (nativeHistory && !nativeHistory.state) {
+			setNativeHistory(fm.startDir());
+		}
+	})
+	.open(function() {
+		var l = history.length,
+			cwd = fm.cwd().hash;
+
+		if (update) {
+			current >= 0 && l > current + 1 && history.splice(current+1);
+			history[history.length-1] != cwd && history.push(cwd);
+			current = history.length - 1;
+		}
+		update = true;
+
+		setNativeHistory(cwd);
+	})
+	.reload(fm.options.reloadClearHistory && reset);
+	
+};