web_frontend/actor.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.Actor');
  11
  12 goog.require('goog.array');
  13 goog.require('goog.dom');
  14 goog.require('goog.positioning.ClientPosition');
  15 goog.require('goog.positioning.Corner');
  16 goog.require('goog.ui.Popup');
  17
  18 /**
  19  * The Actor is a popup that displays the various actions that can be performed
  20  * on a given File.
  21  * @constructor
  22  */
  23 armadillo.Actor = function() {
  24   goog.Disposable.call(this);
  25   this.element_ = this.createElement_();
  26   this.popup_ = new goog.ui.Popup(this.element_);
  27   armadillo.Actor.actors_.push(this);
  28 }
  29 goog.inherits(armadillo.Actor, goog.Disposable);
  30
  31 /**
  32  * An array of all the Actors that have been created.
  33  */
  34 armadillo.Actor.actors_ = new Array();
  35
  36 /**
  37  * A global property that should be checked to see if an actor is present,
  38  * creating a modal session.
  39  */
  40 armadillo.Actor.isModal = function() {
  41   var isVisible = false;
  42   goog.array.forEach(armadillo.Actor.actors_, function (e) {
  43     isVisible |= e.popup_.isVisible();
  44   });
  45   return isVisible;
  46 };
  47
  48 /**
  49  * Disposer
  50  * @protected
  51  */
  52 armadillo.Actor.prototype.disposeInternal = function() {
  53   armadillo.Actor.superClass_.disposeInternal.call(this);
  54   goog.dom.removeNode(this.element_);
  55   this.element_ = null;
  56   this.popup_.dispose();
  57   this.popup_ = null;
  58   goog.array.remove(armadillo.Actor.actors_, this);
  59 };
  60
  61 /**
  62  * Shows the popup.
  63  * @param  {int}  x  The X position to show at
  64  * @param  {int}  y  The Y position to show at
  65  */
  66 armadillo.Actor.prototype.show = function(x, y) {
  67   if (armadillo.Actor.isModal())
  68     return;
  69   var firstBodyElement = goog.dom.getFirstElementChild(document.body);
  70   goog.dom.insertSiblingBefore(this.element_, firstBodyElement);
  71   this.popup_.setPinnedCorner(goog.positioning.Corner.TOP_LEFT);
  72   this.popup_.setPosition(new goog.positioning.ClientPosition(x, y));
  73   this.popup_.setVisible(true);
  74 };
  75
  76 /**
  77  * Hides the popup.
  78  */
  79 armadillo.Actor.prototype.hide = function() {
  80   this.popup_.setVisible(false);
  81 };
  82
  83 /**
  84  * Creates the DOM Element that is inserted into the popup.
  85  * @returns  Element
  86  */
  87 armadillo.Actor.prototype.createElement_ = function() {
  88   var root = goog.dom.createDom('div', 'actor');
  89   goog.dom.setTextContent(root, 'foo bar');
  90   return root;
  91 };