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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org Code.
*
* The Initial Developer of the Original Code is
* Markus Stange <mstange@themasta.com>.
* Portions created by the Initial Developer are Copyright (C) 2008
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
let EXPORTED_SYMBOLS = [ "WindowDraggingElement" ];
function WindowDraggingElement(elem, window) {
this._elem = elem;
this._window = window;
this._elem.addEventListener("mousedown", this, false);
}
WindowDraggingElement.prototype = {
mouseDownCheck: function(e) { return true; },
dragTags: ["box", "hbox", "vbox", "spacer", "label", "statusbarpanel", "stack",
"toolbaritem", "toolbarseparator", "toolbarspring", "toolbarspacer",
"radiogroup"],
handleEvent: function(aEvent) {
switch (aEvent.type) {
case "mousedown":
if (aEvent.button != 0 || !this.mouseDownCheck.call(this._elem, aEvent))
return;
let target = aEvent.originalTarget, parent = aEvent.originalTarget;
while (parent != this._elem) {
let mousethrough = parent.getAttribute("mousethrough");
if (mousethrough == "always")
target = parent.parentNode;
else if (mousethrough == "never")
break;
parent = parent.parentNode;
}
while (target != this._elem) {
if (this.dragTags.indexOf(target.localName) == -1)
return;
target = target.parentNode;
}
this._deltaX = aEvent.screenX - this._window.screenX;
this._deltaY = aEvent.screenY - this._window.screenY;
this._draggingWindow = true;
this._window.addEventListener("mousemove", this, false);
this._window.addEventListener("mouseup", this, false);
break;
case "mousemove":
if (this._draggingWindow)
this._window.moveTo(aEvent.screenX - this._deltaX, aEvent.screenY - this._deltaY);
break;
case "mouseup":
this._draggingWindow = false;
this._window.removeEventListener("mousemove", this, false);
this._window.removeEventListener("mouseup", this, false);
break;
}
}
}
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