mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 21:55:31 +00:00
119 lines
4.3 KiB
JavaScript
119 lines
4.3 KiB
JavaScript
/* ***** 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;
|
|
#ifdef XP_WIN
|
|
this._elem.addEventListener("MozMouseHittest", this, false);
|
|
#else
|
|
this._elem.addEventListener("mousedown", this, false);
|
|
#endif
|
|
}
|
|
|
|
WindowDraggingElement.prototype = {
|
|
mouseDownCheck: function(e) { return true; },
|
|
dragTags: ["box", "hbox", "vbox", "spacer", "label", "statusbarpanel", "stack",
|
|
"toolbaritem", "toolbarseparator", "toolbarspring", "toolbarspacer",
|
|
"radiogroup", "deck", "scrollbox", "arrowscrollbox", "tabs"],
|
|
shouldDrag: function(aEvent) {
|
|
if (aEvent.button != 0 ||
|
|
this._window.fullScreen ||
|
|
!this.mouseDownCheck.call(this._elem, aEvent) ||
|
|
aEvent.getPreventDefault())
|
|
return false;
|
|
|
|
let target = aEvent.originalTarget, parent = aEvent.originalTarget;
|
|
|
|
// The target may be inside an embedded iframe or browser. (bug 615152)
|
|
if (target.ownerDocument.defaultView != this._window)
|
|
return false;
|
|
|
|
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 false;
|
|
target = target.parentNode;
|
|
}
|
|
return true;
|
|
},
|
|
handleEvent: function(aEvent) {
|
|
#ifdef XP_WIN
|
|
if (this.shouldDrag(aEvent))
|
|
aEvent.preventDefault();
|
|
#else
|
|
switch (aEvent.type) {
|
|
case "mousedown":
|
|
if (!this.shouldDrag(aEvent))
|
|
return;
|
|
|
|
#ifdef MOZ_WIDGET_GTK2
|
|
// On GTK, there is a toolkit-level function which handles
|
|
// window dragging, which must be used.
|
|
this._window.beginWindowMove(aEvent);
|
|
#else
|
|
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);
|
|
#endif
|
|
break;
|
|
case "mousemove":
|
|
if (this._draggingWindow)
|
|
this._window.moveTo(aEvent.screenX - this._deltaX, aEvent.screenY - this._deltaY);
|
|
break;
|
|
case "mouseup":
|
|
if (this._draggingWindow) {
|
|
this._draggingWindow = false;
|
|
this._window.removeEventListener("mousemove", this, false);
|
|
this._window.removeEventListener("mouseup", this, false);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
}
|