1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "KeyboardScrollAnimation.h"
8 #include "ScrollAnimationBezierPhysics.h"
9
10 #include "gfxPrefs.h"
11
12 namespace mozilla {
13 namespace layers {
14
SettingsForType(KeyboardScrollAction::KeyboardScrollActionType aType)15 static ScrollAnimationBezierPhysicsSettings SettingsForType(
16 KeyboardScrollAction::KeyboardScrollActionType aType) {
17 int32_t minMS = 0;
18 int32_t maxMS = 0;
19
20 switch (aType) {
21 case KeyboardScrollAction::eScrollCharacter:
22 case KeyboardScrollAction::eScrollLine: {
23 maxMS = clamped(gfxPrefs::LineSmoothScrollMaxDurationMs(), 0, 10000);
24 minMS = clamped(gfxPrefs::LineSmoothScrollMinDurationMs(), 0, maxMS);
25 break;
26 }
27 case KeyboardScrollAction::eScrollPage: {
28 maxMS = clamped(gfxPrefs::PageSmoothScrollMaxDurationMs(), 0, 10000);
29 minMS = clamped(gfxPrefs::PageSmoothScrollMinDurationMs(), 0, maxMS);
30 break;
31 }
32 case KeyboardScrollAction::eScrollComplete: {
33 maxMS = clamped(gfxPrefs::OtherSmoothScrollMaxDurationMs(), 0, 10000);
34 minMS = clamped(gfxPrefs::OtherSmoothScrollMinDurationMs(), 0, maxMS);
35 break;
36 }
37 }
38
39 // The pref is 100-based int percentage, while mIntervalRatio is 1-based ratio
40 double intervalRatio =
41 ((double)gfxPrefs::SmoothScrollDurationToIntervalRatio()) / 100.0;
42 intervalRatio = std::max(1.0, intervalRatio);
43 return ScrollAnimationBezierPhysicsSettings{minMS, maxMS, intervalRatio};
44 }
45
KeyboardScrollAnimation(AsyncPanZoomController & aApzc,const nsPoint & aInitialPosition,KeyboardScrollAction::KeyboardScrollActionType aType)46 KeyboardScrollAnimation::KeyboardScrollAnimation(
47 AsyncPanZoomController& aApzc, const nsPoint& aInitialPosition,
48 KeyboardScrollAction::KeyboardScrollActionType aType)
49 : GenericScrollAnimation(aApzc, aInitialPosition, SettingsForType(aType)) {}
50
51 } // namespace layers
52 } // namespace mozilla
53