cc/animation/scrollbar_animation_controller_thinning.cc - Issue 640063002: Hide scrollbars when their dimensions are not scrollable.

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Unified Diff: cc/animation/scrollbar_animation_controller_thinning.cc

Issue 640063002: Hide scrollbars when their dimensions are not scrollable. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Added unit tests Created 6 years, 2 months ago

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« cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc ('K') | « cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc ('k') | cc/animation/scrollbar_animation_controller_thinning_unittest.cc » ('j') | no next file with comments »
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Index: cc/animation/scrollbar_animation_controller_thinning.cc

diff --git a/cc/animation/scrollbar_animation_controller_thinning.cc b/cc/animation/scrollbar_animation_controller_thinning.cc

index 0c05709c8c06e7985104aebb3cf9a36d4bf20af1..e95b5994ecf5a6d55daa1e864d795534807dc9a1 100644

--- a/cc/animation/scrollbar_animation_controller_thinning.cc

+++ b/cc/animation/scrollbar_animation_controller_thinning.cc

@@ -145,8 +145,12 @@ void ScrollbarAnimationControllerThinning::ApplyOpacityAndThumbThicknessScale(

++it) {

ScrollbarLayerImplBase* scrollbar = *it;

if (scrollbar->is_overlay_scrollbar()) {

- scrollbar->SetOpacity(

- AdjustScale(opacity, scrollbar->opacity(), opacity_change_));

+ float effectiveOpacity =

+ scrollbar->can_scroll_orientation()

+ ? AdjustScale(opacity, scrollbar->opacity(), opacity_change_)

+ : 0;

+ scrollbar->SetOpacity(effectiveOpacity);

scrollbar->SetThumbThicknessScaleFactor(

AdjustScale(thumb_thickness_scale,

scrollbar->thumb_thickness_scale_factor(),