forked from mirrors/gecko-dev
117 lines
4 KiB
JavaScript
117 lines
4 KiB
JavaScript
# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
#
|
|
# ***** 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 this file as it was released upon January 6, 2001.
|
|
#
|
|
# The Initial Developer of the Original Code is
|
|
# Peter Annema.
|
|
# Portions created by the Initial Developer are Copyright (C) 2000
|
|
# the Initial Developer. All Rights Reserved.
|
|
#
|
|
# Contributor(s):
|
|
# Peter Annema <disttsc@bart.nl> (Original Author)
|
|
# Jonas Sicking <sicking@bigfoot.com>
|
|
# Jason Barnabe <jason_barnabe@fastmail.fm>
|
|
# Dão Gottwald <dao@mozilla.com>
|
|
#
|
|
# 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 *****
|
|
|
|
/** Document Zoom Management Code
|
|
*
|
|
* To use this, you'll need to have a getBrowser() function.
|
|
**/
|
|
|
|
var ZoomManager = {
|
|
get _prefBranch ZoomManager_get__prefBranch() {
|
|
return Components.classes["@mozilla.org/preferences-service;1"]
|
|
.getService(Components.interfaces.nsIPrefBranch);
|
|
},
|
|
|
|
get MIN ZoomManager_get_MIN() {
|
|
delete this.MIN;
|
|
return this.MIN = this._prefBranch.getIntPref("fullZoom.minPercent") / 100;
|
|
},
|
|
|
|
get MAX ZoomManager_get_MAX() {
|
|
delete this.MAX;
|
|
return this.MAX = this._prefBranch.getIntPref("fullZoom.maxPercent") / 100;
|
|
},
|
|
|
|
get fullZoom ZoomManager_get_fullZoom() {
|
|
return getBrowser().markupDocumentViewer.fullZoom;
|
|
},
|
|
|
|
set fullZoom ZoomManager_set_fullZoom(aVal) {
|
|
if (aVal < this.MIN || aVal > this.MAX)
|
|
throw Components.results.NS_ERROR_INVALID_ARG;
|
|
|
|
return (getBrowser().markupDocumentViewer.fullZoom = aVal);
|
|
},
|
|
|
|
get fullZoomValues ZoomManager_get_fullZoomValues() {
|
|
var fullZoomValues = this._prefBranch.getCharPref("toolkit.zoomManager.fullZoomValues")
|
|
.split(",").map(parseFloat);
|
|
fullZoomValues.sort();
|
|
|
|
while (fullZoomValues[0] < this.MIN)
|
|
fullZoomValues.shift();
|
|
|
|
while (fullZoomValues[fullZoomValues.length - 1] > this.MAX)
|
|
fullZoomValues.pop();
|
|
|
|
delete this.fullZoomValues;
|
|
return this.fullZoomValues = fullZoomValues;
|
|
},
|
|
|
|
enlarge: function ZoomManager_enlarge() {
|
|
var i = this.fullZoomValues.indexOf(this.snap(this.fullZoom)) + 1;
|
|
if (i < this.fullZoomValues.length)
|
|
this.fullZoom = this.fullZoomValues[i];
|
|
},
|
|
|
|
reduce: function ZoomManager_reduce() {
|
|
var i = this.fullZoomValues.indexOf(this.snap(this.fullZoom)) - 1;
|
|
if (i >= 0)
|
|
this.fullZoom = this.fullZoomValues[i];
|
|
},
|
|
|
|
reset: function ZoomManager_reset() {
|
|
this.fullZoom = 1;
|
|
},
|
|
|
|
snap: function ZoomManager_snap(aVal) {
|
|
var values = this.fullZoomValues;
|
|
for (var i = 0; i < values.length; i++) {
|
|
if (values[i] >= aVal) {
|
|
if (i > 0 && aVal - values[i - 1] < values[i] - aVal)
|
|
i--;
|
|
return values[i];
|
|
}
|
|
}
|
|
return values[i - 1];
|
|
}
|
|
}
|