| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#scroll-snap-type" /> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| div { |
| position: absolute; |
| } |
| .scroller-x { |
| overflow: scroll; |
| scroll-snap-type: x mandatory; |
| width: 500px; |
| height: 500px; |
| } |
| .scroller-y { |
| overflow: scroll; |
| scroll-snap-type: y mandatory; |
| width: 500px; |
| height: 500px; |
| } |
| .space { |
| width: 4000px; |
| height: 4000px; |
| } |
| .target { |
| scroll-snap-align: start; |
| height: 400px; |
| width: 400px; |
| } |
| .large-x { |
| width: 3000px; |
| background-color: yellow; |
| } |
| .large-y { |
| height: 2000px; |
| background-color: yellow; |
| } |
| .small { |
| height: 200px; |
| width: 200px; |
| background-color: black; |
| } |
| </style> |
| <div class="scroller-x" id="one-target"> |
| <div class="space"></div> |
| <div class="large-x target" id="single" style="left: 200px;"></div> |
| </div> |
| |
| <div class="scroller-x" id="x"> |
| <div class="space"></div> |
| <div style="left: 200px;"> |
| <div class="target large-x"></div> |
| <div class="target small" style="left: 200px"></div> |
| <div class="target small" style="left: 600px"></div> |
| <div class="target small" style="left: 1200px"></div> |
| </div> |
| </div> |
| |
| <div class="scroller-y" id="y"> |
| <div class="space"></div> |
| <div style="top: 200px;"> |
| <div class="target large-y"></div> |
| <div class="target small" style="top: 200px"></div> |
| <div class="target small" style="top: 600px"></div> |
| <div class="target small" style="top: 1200px"></div> |
| <div class="target large-y" style="top: 2000px"></div> |
| </div> |
| </div> |
| |
| <div class="scroller-x" id="two-axes" style="scroll-snap-type: both mandatory"> |
| <div class="space"></div> |
| <div class="target large-x" style="top: 200px"></div> |
| </div> |
| |
| <div class="scroller-x" id="overlapping-overflow" style="scroll-snap-type: both mandatory"> |
| <div class="space"></div> |
| <div style="left: 200px; top: 200px;"> |
| <div class="target small"></div> |
| <div class="target small"></div> |
| <div class="target small"></div> |
| <div class="target large-y large-x"></div> |
| <div class="target small"></div> |
| <div class="target small"></div> |
| <div class="target small"></div> |
| </div> |
| </div> |
| |
| <script> |
| var one_target_scroller = document.getElementById("one-target"); |
| var scroller_x = document.getElementById("x"); |
| var scroller_y = document.getElementById("y"); |
| var two_axes_scroller = document.getElementById("two-axes"); |
| var overlapping_scroller = document.getElementById("overlapping-overflow"); |
| |
| test(() => { |
| scroller_x.scrollTo(950, 0); |
| assert_equals(scroller_x.scrollLeft, 1000); |
| assert_equals(scroller_x.scrollTop, 0); |
| }, "Snap within a snap area which covers snapport on x selects a valid snap " + |
| "position that avoids the overlapping areas at 800-1000 and 1400-1600."); |
| |
| test(() => { |
| scroller_y.scrollTo(0, 950); |
| assert_equals(scroller_y.scrollLeft, 0); |
| assert_equals(scroller_y.scrollTop, 1000); |
| }, "Snap within a snap area which covers snapport on y selects a valid snap " + |
| "position that avoids the overlapping areas at 800-1000 and 1400-1600."); |
| </script> |
