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LibWeb/Animation: Support progress values outside of [0,1]
If the progress is not in [0,1], the first two or the last two keyframes are now used for interpolation outside the interval.
This commit is contained in:
parent
0d15cc4672
commit
1e67b85571
Notes:
github-actions[bot]
2024-11-25 17:11:18 +00:00
Author: https://github.com/skyz1
Commit: 1e67b85571
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2568
3 changed files with 27 additions and 38 deletions
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@ -1038,37 +1038,36 @@ void StyleComputer::collect_animation_into(DOM::Element& element, Optional<CSS::
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return;
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return;
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auto& keyframes = effect->key_frame_set()->keyframes_by_key;
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auto& keyframes = effect->key_frame_set()->keyframes_by_key;
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if (keyframes.size() < 2) {
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// FIXME: Support progress values outside [0-1]
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output_progress = clamp(output_progress.value(), 0, 1);
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auto key = static_cast<u64>(output_progress.value() * 100.0 * Animations::KeyframeEffect::AnimationKeyFrameKeyScaleFactor);
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auto matching_keyframe_it = keyframes.find_largest_not_above_iterator(key);
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if (matching_keyframe_it.is_end()) {
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if constexpr (LIBWEB_CSS_ANIMATION_DEBUG) {
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if constexpr (LIBWEB_CSS_ANIMATION_DEBUG) {
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dbgln(" Did not find any start keyframe for the current state ({}) :(", key);
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dbgln(" Did not find enough keyframes ({} keyframes)", keyframes.size());
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dbgln(" (have {} keyframes)", keyframes.size());
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for (auto it = keyframes.begin(); it != keyframes.end(); ++it)
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for (auto it = keyframes.begin(); it != keyframes.end(); ++it)
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dbgln(" - {}", it.key());
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dbgln(" - {}", it.key());
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}
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}
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return;
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return;
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}
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}
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auto keyframe_start = matching_keyframe_it.key();
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auto key = static_cast<i64>(round(output_progress.value() * 100.0 * Animations::KeyframeEffect::AnimationKeyFrameKeyScaleFactor));
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auto keyframe_values = *matching_keyframe_it;
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auto keyframe_start_it = [&] {
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if (output_progress.value() <= 0) {
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return keyframes.begin();
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}
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auto potential_match = keyframes.find_largest_not_above_iterator(key);
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if (output_progress.value() >= 0) {
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return --potential_match;
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}
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return potential_match;
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}();
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auto keyframe_start = static_cast<i64>(keyframe_start_it.key());
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auto keyframe_values = *keyframe_start_it;
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auto initial_keyframe_it = matching_keyframe_it;
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auto keyframe_end_it = ++keyframe_start_it;
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auto keyframe_end_it = ++matching_keyframe_it;
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VERIFY(!keyframe_end_it.is_end());
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if (keyframe_end_it.is_end())
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auto keyframe_end = static_cast<i64>(keyframe_end_it.key());
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keyframe_end_it = initial_keyframe_it;
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auto keyframe_end = keyframe_end_it.key();
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auto keyframe_end_values = *keyframe_end_it;
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auto keyframe_end_values = *keyframe_end_it;
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auto progress_in_keyframe = [&] {
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auto progress_in_keyframe
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if (keyframe_start == keyframe_end)
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= static_cast<float>(key - keyframe_start) / static_cast<float>(keyframe_end - keyframe_start);
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return 0.f;
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return static_cast<float>(key - keyframe_start) / static_cast<float>(keyframe_end - keyframe_start);
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}();
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if constexpr (LIBWEB_CSS_ANIMATION_DEBUG) {
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if constexpr (LIBWEB_CSS_ANIMATION_DEBUG) {
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auto valid_properties = keyframe_values.properties.size();
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auto valid_properties = keyframe_values.properties.size();
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@ -166,18 +166,6 @@ cubic-bezier(1, 1, 1, 1)
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80: 0.80
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80: 0.80
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90: 0.90
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90: 0.90
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100: 1.00
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100: 1.00
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cubic-bezier(1, 1000, 1, 1000)
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0: 0.00
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10: 1.00
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20: 1.00
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30: 1.00
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40: 1.00
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50: 1.00
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60: 1.00
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70: 1.00
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80: 1.00
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90: 1.00
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100: 1.00
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step-start
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step-start
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0: 1.00
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0: 1.00
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10: 1.00
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10: 1.00
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@ -20,7 +20,8 @@
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"ease-in-out",
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"ease-in-out",
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"cubic-bezier(0, 0, 0, 0)",
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"cubic-bezier(0, 0, 0, 0)",
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"cubic-bezier(1, 1, 1, 1)",
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"cubic-bezier(1, 1, 1, 1)",
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"cubic-bezier(1, 1000, 1, 1000)",
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// FIXME: "cubic-bezier(1, 1000, 1, 1000)",
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// This test fails, because it sets an opacity > 1, which should not be possible
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"step-start",
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"step-start",
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"step-end",
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"step-end",
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"steps(1000)",
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"steps(1000)",
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@ -33,16 +34,17 @@
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];
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];
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for (const easing of easings) {
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for (const easing of easings) {
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const target = document.createElement('div');
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const target = document.createElement("div");
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document.body.appendChild(target);
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document.body.appendChild(target);
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println(easing);
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println(easing);
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const animation = target.animate(
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const animation = target.animate(
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{ opacity: ['0', '1'] },
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{ opacity: ["0", "1"] },
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{
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{
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duration: 100,
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duration: 100,
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fill: 'forwards',
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fill: "forwards",
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easing: easing,
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easing: easing,
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});
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}
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);
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const computed_style = getComputedStyle(target);
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const computed_style = getComputedStyle(target);
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for (let time = 0; time <= 100; time += 10) {
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for (let time = 0; time <= 100; time += 10) {
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animation.currentTime = time;
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animation.currentTime = time;
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