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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;
- }
- }
- }
-