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| -rw-r--r-- | layout/reftests/svg/smil/repeat/init-repeat-1.svg | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/layout/reftests/svg/smil/repeat/init-repeat-1.svg b/layout/reftests/svg/smil/repeat/init-repeat-1.svg new file mode 100644 index 0000000000..7481fbcba8 --- /dev/null +++ b/layout/reftests/svg/smil/repeat/init-repeat-1.svg @@ -0,0 +1,47 @@ +<!-- + The following tests an anomaly in the SMIL Animation spec. + + SMILANIM 3.6.8 says: + + Thus the strict definition of the first acceptable interval for the element + is the first interval that ends after the document begins. + + This is then demonstrated in pseudocode. + + However, it is contradicted by a statement just before the first that says: + + The element has one or more intervals defined that begin and end before the + document begins (before 0). These are filtered out of the model. + + So there is some ambiguity about intervals that end at time zero. However, the + first statement seems more authorative ("the strict definition") and the + second statement does not explicitly say that intervals that end at t=0 are + not filtered. Furthermore, the pseudocode is in agreement with the first + statement so we conclude that if an interval finishes at time zero it is not + an acceptable interval and is filtered out. + + The following animation sets up such an interval, that, based on its + repeatCount has an active duration of 1s, producing an interval of (-1s, 0s). + Therefore this interval should be filtered out and no animation effect should + be produced. The circle should remain at position 0 (the first marker). If the + interval is not correctly filtered out it will be at position 100 (the second + marker). + + We include this test as a regression test so that no one is tempted to "fix" + this behaviour. + + Note that this behaviour persists even in SMIL 3 (including the ambiguity + noted above). + See http://www.w3.org/TR/SMIL3/smil-timing.html#Timing-BeginEnd-LC-Start + --> +<svg xmlns="http://www.w3.org/2000/svg"> + <g transform="translate(50 50)"> + <circle r="40" style="fill: yellow; stroke: black; stroke-width: 1"> + <animate attributeName="cx" attributeType="XML" fill="freeze" + values="0; 200" dur="2s" begin="-1s" repeatCount="0.5"/> + </circle> + <path d="M0 -10v20" stroke="blue"/> + <path d="M100 -10v20" stroke="blue"/> + <path d="M200 -10v20" stroke="blue"/> + </g> +</svg> |