Skip to content

Commit

Permalink
fix($animate): use a scheduled timeout in favor of a fallback propert…
Browse files Browse the repository at this point in the history 
…y to close transitions

With ngAnimate, CSS transitions, that are not properlty triggered, are forceably closed off
by appling a fallback property. The fallback property approach works, however, its styling
itself may effect CSS inheritance or cause the element to render improperly. Therefore, its
best to stick to using a scheduled timeout to run sometime after the highest animation time
has passed.

Closes angular#5255
Closes angular#5241
Closes angular#5405
  • Loading branch information
@matsko
matsko committed Dec 17, 2013
1 parent 5c97731 commit 7e09adf
Show file tree
Hide file tree
Showing 3 changed files with 128 additions and 171 deletions.
11 changes: 0 additions & 11 deletions css/angular.css
View file
Original file line number Diff line number Diff line change
Expand Up @@ -9,14 +9,3 @@
ng\:form {
display: block;
}

/* The styles below ensure that the CSS transition will ALWAYS
* animate and close. A nasty bug occurs with CSS transitions where
* when the active class isn't set, or if the active class doesn't
* contain any styles to transition to, then, if ngAnimate is used,
* it will appear as if the webpage is broken due to the forever hanging
* animations. The border-spacing (!ie) and zoom (ie) CSS properties are
* used below since they trigger a transition without making the browser
* animate anything and they're both highly underused CSS properties */
.ng-animate-start { border-spacing:1px 1px; -ms-zoom:1.0001; }
.ng-animate-active { border-spacing:0px 0px; -ms-zoom:1; }
110 changes: 76 additions & 34 deletions src/ngAnimate/animate.js
View file
Original file line number Diff line number Diff line change
Expand Up @@ -881,27 +881,73 @@ angular.module('ngAnimate', ['ng'])
var ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';
var NG_ANIMATE_PARENT_KEY = '$$ngAnimateKey';
var NG_ANIMATE_CSS_DATA_KEY = '$$ngAnimateCSS3Data';
var NG_ANIMATE_FALLBACK_CLASS_NAME = 'ng-animate-start';
var NG_ANIMATE_FALLBACK_ACTIVE_CLASS_NAME = 'ng-animate-active';
var ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;
var CLOSING_TIME_BUFFER = 1.5;
var ONE_SECOND = 1000;

var animationCounter = 0;
var lookupCache = {};
var parentCounter = 0;
var animationReflowQueue = [];
var animationElementQueue = [];
var animationTimer;
var closingAnimationTime = 0;
var timeOut = false;
function afterReflow(element, callback) {
$timeout.cancel(animationTimer);

var animationReflowQueue = [], animationTimer, timeOut = false;
function afterReflow(callback) {
animationReflowQueue.push(callback);
$timeout.cancel(animationTimer);

var node = extractElementNode(element);
element = angular.element(node);
animationElementQueue.push(element);

var elementData = element.data(NG_ANIMATE_CSS_DATA_KEY);
closingAnimationTime = Math.max(closingAnimationTime,
(elementData.maxDelay + elementData.maxDuration) * CLOSING_TIME_BUFFER * ONE_SECOND);

//by placing a counter we can avoid an accidental
//race condition which may close an animation when
//a follow-up animation is midway in its animation
elementData.animationCount = animationCounter;

animationTimer = $timeout(function() {
forEach(animationReflowQueue, function(fn) {
fn();
});

//copy the list of elements so that successive
//animations won't conflict if they're added before
//the closing animation timeout has run
var elementQueueSnapshot = [];
var animationCounterSnapshot = animationCounter;
forEach(animationElementQueue, function(elm) {
elementQueueSnapshot.push(elm);
});

$timeout(function() {
closeAllAnimations(elementQueueSnapshot, animationCounterSnapshot);
elementQueueSnapshot = null;
}, closingAnimationTime, false);

animationReflowQueue = [];
animationElementQueue = [];
animationTimer = null;
lookupCache = {};
closingAnimationTime = 0;
animationCounter++;
}, 10, false);
}

function closeAllAnimations(elements, count) {
angular.forEach(elements, function(element) {

This comment has been minimized.

Sign in to view

Copy link
@IgorMinar

IgorMinar Dec 19, 2013

just forEach
var elementData = element.data(NG_ANIMATE_CSS_DATA_KEY);
if(elementData && elementData.animationCount == count) {
(elementData.closeAnimationFn || noop)();
}
});
}

function getElementAnimationDetails(element, cacheKey) {
var data = cacheKey ? lookupCache[cacheKey] : null;
if(!data) {
Expand Down Expand Up @@ -1007,6 +1053,7 @@ angular.module('ngAnimate', ['ng'])
timeout is empty (this would cause a flicker bug normally
in the page. There is also no point in performing an animation
that only has a delay and no duration */
var maxDelay = Math.max(timings.transitionDelay, timings.animationDelay);
var maxDuration = Math.max(timings.transitionDuration, timings.animationDuration);
if(maxDuration === 0) {
element.removeClass(className);
Expand All @@ -1016,13 +1063,9 @@ angular.module('ngAnimate', ['ng'])
//temporarily disable the transition so that the enter styles
//don't animate twice (this is here to avoid a bug in Chrome/FF).
var activeClassName = '';
if(timings.transitionDuration > 0) {
element.addClass(NG_ANIMATE_FALLBACK_CLASS_NAME);
activeClassName += NG_ANIMATE_FALLBACK_ACTIVE_CLASS_NAME + ' ';
blockTransitions(element);
} else {
timings.transitionDuration > 0 ?
blockTransitions(element) :
blockKeyframeAnimations(element);
}

forEach(className.split(' '), function(klass, i) {
activeClassName += (i > 0 ? ' ' : '') + klass + '-active';
Expand All @@ -1032,6 +1075,7 @@ angular.module('ngAnimate', ['ng'])
className : className,
activeClassName : activeClassName,
maxDuration : maxDuration,
maxDelay : maxDelay,
classes : className + ' ' + activeClassName,
timings : timings,
stagger : stagger,
Expand Down Expand Up @@ -1066,30 +1110,28 @@ angular.module('ngAnimate', ['ng'])
}

function animateRun(element, className, activeAnimationComplete) {
var data = element.data(NG_ANIMATE_CSS_DATA_KEY);
var elementData = element.data(NG_ANIMATE_CSS_DATA_KEY);
var node = extractElementNode(element);
if(node.className.indexOf(className) == -1 || !data) {
if(node.className.indexOf(className) == -1 || !elementData) {
activeAnimationComplete();
return;
}

var timings = data.timings;
var stagger = data.stagger;
var maxDuration = data.maxDuration;
var activeClassName = data.activeClassName;
var maxDelayTime = Math.max(timings.transitionDelay, timings.animationDelay) * 1000;
var timings = elementData.timings;
var stagger = elementData.stagger;
var maxDuration = elementData.maxDuration;
var activeClassName = elementData.activeClassName;
var maxDelayTime = Math.max(timings.transitionDelay, timings.animationDelay) * ONE_SECOND;
var startTime = Date.now();
var css3AnimationEvents = ANIMATIONEND_EVENT + ' ' + TRANSITIONEND_EVENT;
var ii = data.ii;
var ii = elementData.ii;

var applyFallbackStyle, style = '', appliedStyles = [];
var style = '', appliedStyles = [];
if(timings.transitionDuration > 0) {
var propertyStyle = timings.transitionPropertyStyle;
if(propertyStyle.indexOf('all') == -1) {
applyFallbackStyle = true;
var fallbackProperty = $sniffer.msie ? '-ms-zoom' : 'border-spacing';
style += CSS_PREFIX + 'transition-property: ' + propertyStyle + ', ' + fallbackProperty + '; ';
style += CSS_PREFIX + 'transition-duration: ' + timings.transitionDurationStyle + ', ' + timings.transitionDuration + 's; ';
style += CSS_PREFIX + 'transition-property: ' + propertyStyle + ';';
style += CSS_PREFIX + 'transition-duration: ' + timings.transitionDurationStyle + 's;';
appliedStyles.push(CSS_PREFIX + 'transition-property');
appliedStyles.push(CSS_PREFIX + 'transition-duration');
}
Expand All @@ -1098,10 +1140,6 @@ angular.module('ngAnimate', ['ng'])
if(ii > 0) {
if(stagger.transitionDelay > 0 && stagger.transitionDuration === 0) {
var delayStyle = timings.transitionDelayStyle;
if(applyFallbackStyle) {
delayStyle += ', ' + timings.transitionDelay + 's';
}

style += CSS_PREFIX + 'transition-delay: ' +
prepareStaggerDelay(delayStyle, stagger.transitionDelay, ii) + '; ';
appliedStyles.push(CSS_PREFIX + 'transition-delay');
Expand All @@ -1124,19 +1162,24 @@ angular.module('ngAnimate', ['ng'])

element.on(css3AnimationEvents, onAnimationProgress);
element.addClass(activeClassName);
elementData.closeAnimationFn = function() {
onEnd();
activeAnimationComplete();
};
return onEnd;

// This will automatically be called by $animate so
// there is no need to attach this internally to the
// timeout done method.
return function onEnd(cancelled) {
function onEnd(cancelled) {
element.off(css3AnimationEvents, onAnimationProgress);
element.removeClass(activeClassName);
animateClose(element, className);
var node = extractElementNode(element);
for (var i in appliedStyles) {
node.style.removeProperty(appliedStyles[i]);
}
};
}

function onAnimationProgress(event) {
event.stopPropagation();
Expand Down Expand Up @@ -1202,7 +1245,7 @@ angular.module('ngAnimate', ['ng'])
//data from the element which will not make the 2nd animation
//happen in the first place
var cancel = preReflowCancellation;
afterReflow(function() {
afterReflow(element, function() {
unblockTransitions(element);
unblockKeyframeAnimations(element);
//once the reflow is complete then we point cancel to
Expand All @@ -1218,7 +1261,6 @@ angular.module('ngAnimate', ['ng'])

function animateClose(element, className) {
element.removeClass(className);
element.removeClass(NG_ANIMATE_FALLBACK_CLASS_NAME);
element.removeData(NG_ANIMATE_CSS_DATA_KEY);
}

Expand Down Expand Up @@ -1268,7 +1310,7 @@ angular.module('ngAnimate', ['ng'])
beforeAddClass : function(element, className, animationCompleted) {
var cancellationMethod = animateBefore(element, suffixClasses(className, '-add'));
if(cancellationMethod) {
afterReflow(function() {
afterReflow(element, function() {
unblockTransitions(element);
unblockKeyframeAnimations(element);
animationCompleted();
Expand All @@ -1285,7 +1327,7 @@ angular.module('ngAnimate', ['ng'])
beforeRemoveClass : function(element, className, animationCompleted) {
var cancellationMethod = animateBefore(element, suffixClasses(className, '-remove'));
if(cancellationMethod) {
afterReflow(function() {
afterReflow(element, function() {
unblockTransitions(element);
unblockKeyframeAnimations(element);
animationCompleted();
Expand Down
Loading

1 comment on commit 7e09adf

@IgorMinar
Copy link

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

otherwise LGTM. please merge

Please sign in to comment.