openseadragon/src/control.js

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JavaScript
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(function( $ ){
$.Control = function (elmt, anchor, container) {
this.elmt = elmt;
this.anchor = anchor;
this.container = container;
this.wrapper = $.Utils.makeNeutralElement("span");
this.wrapper.style.display = "inline-block";
this.wrapper.appendChild(this.elmt);
if (this.anchor == $.ControlAnchor.NONE) {
this.wrapper.style.width = this.wrapper.style.height = "100%"; // IE6 fix
}
if (this.anchor == $.ControlAnchor.TOP_RIGHT || this.anchor == $.ControlAnchor.BOTTOM_RIGHT) {
this.container.insertBefore(this.wrapper, this.container.firstChild);
} else {
this.container.appendChild(this.wrapper);
}
};
$.Control.prototype = {
destroy: function() {
this.wrapper.removeChild(this.elmt);
this.container.removeChild(this.wrapper);
},
isVisible: function() {
return this.wrapper.style.display != "none";
},
setVisible: function(visible) {
this.wrapper.style.display = visible ? "inline-block" : "none";
},
setOpacity: function(opacity) {
if (this.elmt[SIGNAL] && $.Utils.getBrowser() == $.Browser.IE) {
$.Utils.setElementOpacity(this.elmt, opacity, true);
} else {
$.Utils.setElementOpacity(this.wrapper, opacity, true);
}
}
};
}( OpenSeadragon ));