blob: 0636c0c87d416d8d5da99b87c482827ce1ff2ac3 [file] [log] [blame]
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +00001/*
mjs@apple.com92047332014-03-15 04:08:27 +00002 * Copyright (C) 2003 Apple Inc.
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +00003 *
4 * Portions are Copyright (C) 1998 Netscape Communications Corporation.
5 *
6 * Other contributors:
7 * Robert O'Callahan <roc+@cs.cmu.edu>
8 * David Baron <dbaron@fas.harvard.edu>
9 * Christian Biesinger <cbiesinger@web.de>
10 * Randall Jesup <rjesup@wgate.com>
11 * Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
12 * Josh Soref <timeless@mac.com>
13 * Boris Zbarsky <bzbarsky@mit.edu>
14 *
15 * This library is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU Lesser General Public
17 * License as published by the Free Software Foundation; either
18 * version 2.1 of the License, or (at your option) any later version.
19 *
20 * This library is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 * Lesser General Public License for more details.
24 *
25 * You should have received a copy of the GNU Lesser General Public
26 * License along with this library; if not, write to the Free Software
27 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 *
29 * Alternatively, the contents of this file may be used under the terms
30 * of either the Mozilla Public License Version 1.1, found at
31 * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
32 * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
33 * (the "GPL"), in which case the provisions of the MPL or the GPL are
34 * applicable instead of those above. If you wish to allow use of your
35 * version of this file only under the terms of one of those two
36 * licenses (the MPL or the GPL) and not to allow others to use your
37 * version of this file under the LGPL, indicate your decision by
38 * deletingthe provisions above and replace them with the notice and
39 * other provisions required by the MPL or the GPL, as the case may be.
40 * If you do not delete the provisions above, a recipient may use your
41 * version of this file under any of the LGPL, the MPL or the GPL.
42 */
43
commit-queue@webkit.org46c0f522016-11-13 10:05:43 +000044#pragma once
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +000045
weinig@apple.comb0999b82009-02-04 23:20:07 +000046#include "Length.h"
47#include "RenderStyleConstants.h"
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +000048#include "Timer.h"
49
50namespace WebCore {
51
52class RenderLayer;
53
zalan@apple.com0272a652016-03-16 01:51:12 +000054// This class handles the auto-scrolling for <marquee>
cdumez@apple.comd563e1d2014-10-23 04:32:27 +000055class RenderMarquee final {
ossy@webkit.org95c1bc42011-01-20 16:30:54 +000056 WTF_MAKE_NONCOPYABLE(RenderMarquee); WTF_MAKE_FAST_ALLOCATED;
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +000057public:
commit-queue@webkit.org7538c252010-10-09 02:00:07 +000058 explicit RenderMarquee(RenderLayer*);
cdumez@apple.comd563e1d2014-10-23 04:32:27 +000059 ~RenderMarquee();
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +000060
61 int speed() const { return m_speed; }
62 int marqueeSpeed() const;
63
64 EMarqueeDirection reverseDirection() const { return static_cast<EMarqueeDirection>(-direction()); }
65 EMarqueeDirection direction() const;
66
67 bool isHorizontal() const;
68
69 int computePosition(EMarqueeDirection, bool stopAtClientEdge);
70
71 void setEnd(int end) { m_end = end; }
72
73 void start();
74 void suspend();
75 void stop();
76
77 void updateMarqueeStyle();
78 void updateMarqueePosition();
79
80private:
andersca@apple.com574a7452014-11-21 20:10:13 +000081 void timerFired();
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +000082
83 RenderLayer* m_layer;
84 int m_currentLoop;
85 int m_totalLoops;
jer.noble@apple.com50862fe2014-11-06 23:06:03 +000086 Timer m_timer;
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +000087 int m_start;
88 int m_end;
89 int m_speed;
90 Length m_height;
91 bool m_reset: 1;
92 bool m_suspended : 1;
93 bool m_stopped : 1;
bfulgham@apple.com9c9b8a12014-06-24 19:49:25 +000094 EMarqueeDirection m_direction : 4; // Not unsigned because EMarqueeDirection has negative values
simon.fraser@apple.com6a1316d2008-08-07 21:55:37 +000095};
96
97} // namespace WebCore