web_frontend/file.js

   1 //
   2 // Armadillo File Manager
   3 // Copyright (c) 2010, Robert Sesek <http://www.bluestatic.org>
   4 //
   5 // This program is free software: you can redistribute it and/or modify it under
   6 // the terms of the GNU General Public License as published by the Free Software
   7 // Foundation, either version 3 of the License, or any later version.
   8 //
   9
  10 goog.provide('armadillo.File');
  11
  12 goog.require('armadillo.Actor');
  13 goog.require('goog.Disposable');
  14 goog.require('goog.dom');
  15
  16 /**
  17  * A file in a directory listing.
  18  * @param  {string}  File name.
  19  * @param  {string}  The path the file resides at.
  20  * @constructor
  21  */
  22 armadillo.File = function(name, path) {
  23   goog.Disposable.call(this);
  24   this.name_ = name;
  25   this.path_ = path;
  26   this.isDirectory_ = app.isDirectory(name);
  27 };
  28 goog.inherits(armadillo.File, goog.Disposable);
  29
  30 /**
  31  * Disposer
  32  * @protected
  33  */
  34 armadillo.File.prototype.disposeInternal = function() {
  35   armadillo.File.superClass_.disposeInternal.call(this);
  36   this.element_ = null;
  37   goog.events.unlistenByKey(this.clickListener_);
  38   goog.events.unlistenByKey(this.mouseOverListener_);
  39   goog.events.unlistenByKey(this.mouseOutListener_);
  40   this.button_ = null;
  41   goog.events.unlistenByKey(this.buttonListener_);
  42 };
  43
  44 /**
  45  * Returns the name of the file.
  46  * @returns string
  47  */
  48 armadillo.File.prototype.getName = function() {
  49   return this.name_;
  50 };
  51
  52 /**
  53  * Constructs the Elements that make up the UI.
  54  * @returns  {Element}  An element ready for insertion into DOM.
  55  */
  56 armadillo.File.prototype.draw = function() {
  57   // Create the element if it does not exist.  If it does, remove all children.
  58   if (!this.element_) {
  59     this.element_ = goog.dom.createElement('li');
  60     this.element_.representedObject = this;
  61     this.clickListener_ = goog.events.listen(this.element_,
  62         goog.events.EventType.CLICK, this.clickHandler_, false, this);
  63     if (!this.isSpecial_()) {
  64       this.mouseOverListener_ = goog.events.listen(this.element_,
  65           goog.events.EventType.MOUSEOVER, this.hoverHandler_, false, this);
  66       this.mouseOutListener_ = goog.events.listen(this.element_,
  67           goog.events.EventType.MOUSEOUT, this.hoverHandler_, false, this);
  68     }
  69   }
  70   goog.dom.removeChildren(this.element_);
  71
  72   // Set the name of the entry.
  73   goog.dom.setTextContent(this.element_, this.name_);
  74
  75   // Create the edit button.
  76   if (!this.isSpecial_()) {
  77     this.button_ = goog.dom.createElement('button');
  78     goog.dom.setTextContent(this.button_, 'Edit');
  79     goog.dom.appendChild(this.element_, this.button_);
  80     this.button_.style.display = 'none';
  81     this.buttonListener_ = goog.events.listen(this.button_,
  82         goog.events.EventType.CLICK, this.buttonClickHandler_, false, this);
  83   }
  84
  85   return this.element_;
  86 };
  87
  88 /**
  89  * Deletes the given file in the backend by sending a request.  On return, it
  90  * will re-query the directory.
  91  */
  92 armadillo.File.prototype.delete = function() {
  93   var file = this;
  94   var callback = function(data) {
  95     if (data['error']) {
  96       app.showError(data['message']);
  97       return;
  98     } else {
  99       app.clearError();
 100     }
 101     app.list(file.path_);
 102   };
 103   app.sendRequest('remove', {'path':this.path_ + this.name_}, callback);
 104 };
 105
 106 /**
 107  * Click handler for the list element.
 108  * @param  {Event}  e
 109  */
 110 armadillo.File.prototype.clickHandler_ = function(e) {
 111   if (armadillo.Actor.isModal()) {
 112     return;
 113   }
 114   if (this.isDirectory_) {
 115     app.navigate(this.name_);
 116   }
 117 };
 118
 119 /**
 120  * Hover event handler for the list element.  This can handle both mouseover
 121  * and mouseout events.
 122  * @param  {Event} e
 123  */
 124 armadillo.File.prototype.hoverHandler_ = function(e) {
 125   if (armadillo.Actor.isModal())
 126     return;
 127   var display = (e.type == goog.events.EventType.MOUSEOVER);
 128   this.button_.style.display = (display ? '' : 'none');
 129 };
 130
 131 /**
 132  * Click handler for the button element.
 133  * @param  {Event}  e
 134  */
 135 armadillo.File.prototype.buttonClickHandler_ = function(e) {
 136   if (armadillo.Actor.isModal())
 137     return;
 138   e.stopPropagation();
 139   var actor = new armadillo.Actor(this);
 140   actor.show(e.clientX, e.clientY);
 141 };
 142
 143 /**
 144  * Returns TRUE if this File is not a real file, but a special kind.
 145  * @returns boolean
 146  */
 147 armadillo.File.prototype.isSpecial_ = function() {
 148   return this.name_ == '../';
 149 };