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| author | sadrul@chromium.org <sadrul@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-11-05 02:07:46 +0000 |
|---|---|---|
| committer | sadrul@chromium.org <sadrul@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-11-05 02:07:46 +0000 |
| commit | bcfef7a01ded80ae37e697c12e5e35f3d337ec0c (patch) | |
| tree | 9b1082251d5d108b3023b5d06baaf5f0bfac3ceb /cc/layers/draw_properties.h | |
| parent | f9df530b76176476ba0d6f67e1b8b2cb17bc34bb (diff) | |
| download | chromium_src-bcfef7a01ded80ae37e697c12e5e35f3d337ec0c.zip chromium_src-bcfef7a01ded80ae37e697c12e5e35f3d337ec0c.tar.gz chromium_src-bcfef7a01ded80ae37e697c12e5e35f3d337ec0c.tar.bz2 | |
cc: Fix hit-testing in zero-opacity layers.
If a layer that accepts touch or wheel events, but the layer (or one of its
ancestor layers) has zero opacity, then make sure the layer hit-tests correctly.
BUG=295295
R=enne@chromium.org, rbyers@google.com
Review URL: https://codereview.chromium.org/26112002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232881 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'cc/layers/draw_properties.h')
| -rw-r--r-- | cc/layers/draw_properties.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/cc/layers/draw_properties.h b/cc/layers/draw_properties.h index 990b4c97..fffb5a9 100644 --- a/cc/layers/draw_properties.h +++ b/cc/layers/draw_properties.h @@ -35,7 +35,8 @@ struct CC_EXPORT DrawProperties { index_of_first_descendants_addition(0), num_descendants_added(0), index_of_first_render_surface_layer_list_addition(0), - num_render_surfaces_added(0) {} + num_render_surfaces_added(0), + skip_drawing(false) {} // Transforms objects from content space to target surface space, where // this layer would be drawn. @@ -121,6 +122,12 @@ struct CC_EXPORT DrawProperties { size_t num_descendants_added; size_t index_of_first_render_surface_layer_list_addition; size_t num_render_surfaces_added; + + // If the layer is part of a [sub]tree that has a touch/wheel event handler, + // then the layer is not skipped during CalculateDrawPropertiesInternal, even + // if it does not actually have anything to draw (e.g. zero opacity, or empty + // content). This flag is used to keep track of such layers. + bool skip_drawing; }; } // namespace cc |