ionic-framework/scss/_animations.scss

/**
 * Animations
 * --------------------------------------------------
 * The animations in this file are "simple" - not too complex
 * and pretty easy on performance. They can be overidden
 * and enhanced easily.
 */
 $transition-duration: 250ms;

.noop-animation {
  > .ng-enter, &.ng-enter, > .ng-leave, &.ng-leave {
    @include transition(all cubic-bezier(0.250, 0.460, 0.450, 0.940) $transition-duration);
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
  }
}


// required for Android
.ng-animate .pane {
  position: absolute;
}


/**
 * Slide Left-Right
 * --------------------------------------------------
 * NEW content slides IN from the RIGHT, OLD slides OUT to the LEFT
 * Reverse: NEW content slides IN from the LEFT, OLD slides OUT to the RIGHT
 */

.slide-left-right {
  > .ng-enter, &.ng-enter, 
  > .ng-leave, &.ng-leave {
    @include transition(all ease-in-out $transition-duration);
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
  }
  > .ng-enter, &.ng-enter {
    /* NEW content placed far RIGHT BEFORE it slides IN from the RIGHT */
    @include translate3d(100%, 0, 0);
  }
  > .ng-enter.ng-enter-active, &.ng-enter.ng-enter-active {
    /* NEW content ACTIVELY sliding IN from the RIGHT */
    @include translate3d(0, 0, 0);
    //.scroll { background: purple; } //for debugging
  }
  > .ng-leave.ng-leave-active, &.ng-leave.ng-leave-active {
    /* OLD content ACTIVELY sliding OUT to the LEFT */
    @include translate3d(-100%, 0, 0);
    //.scroll { background: green; } //for debugging
  }

  &.reverse {
    > .ng-enter, &.ng-enter, > .ng-leave, &.ng-leave {
      @include transition(all ease-in-out $transition-duration);
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
    }
    > .ng-enter, &.ng-enter {
      /* NEW content placed far LEFT BEFORE it slides IN from the LEFT */
      @include translate3d(-100%, 0, 0);
    }
    > .ng-enter.ng-enter-active, &.ng-enter.ng-enter-active {
      /* NEW content ACTIVELY sliding IN from the LEFT */
      @include translate3d(0, 0, 0);
      //.scroll { background: blue; } //for debugging
    }
    > .ng-leave.ng-leave-active, &.ng-leave.ng-leave-active {
      /* OLD content ACTIVELY sliding OUT to the RIGHT */
      @include translate3d(100%, 0, 0);
      //.scroll { background: yellow; } //for debugging
    }
  }
}


/**
 * iOS7 style slide left to right 
 * --------------------------------------------------
 */
$ios7-timing-function: ease-in-out;
$ios7-transition-duration: 250ms;

.slide-left-right-ios7 {
  > .ng-enter, &.ng-enter, 
  > .ng-leave, &.ng-leave {
    @include transition(all $ios7-timing-function $ios7-transition-duration);
    position: absolute;
    top: 0;
    right: -1px;
    bottom: 0;
    left: -1px;
    border-left: 1px solid #ddd;
    border-right: 1px solid #ddd;
  }
  > .ng-enter, &.ng-enter {
    /* NEW content placed far RIGHT BEFORE it slides IN from the RIGHT */
    @include translate3d(100%, 0, 0);
  }
  > .ng-enter.ng-enter-active, &.ng-enter.ng-enter-active {
    /* NEW content ACTIVELY sliding IN from the RIGHT */
    @include translate3d(0, 0, 0);
    //.scroll { background: red; } //for debugging
  }
  > .ng-leave.ng-leave-active, &.ng-leave.ng-leave-active {
    /* OLD content ACTIVELY sliding OUT to the LEFT */
    @include translate3d(-15%, 0, 0);
    //.scroll { background: blue; } //for debugging
  }
  
  &.reverse {
    > .ng-enter, &.ng-enter, > .ng-leave, &.ng-leave {
      @include transition(all $ios7-timing-function $ios7-transition-duration);
      position: absolute;
      top: 0;
      right: -1px;
      bottom: 0;
      left: -1px;
      border-left: 1px solid #ddd;
      border-right: 1px solid #ddd;
    }
    > .ng-enter, &.ng-enter {
      /* NEW content placed far LEFT BEFORE it slides IN from the LEFT */
      @include translate3d(-100%, 0, 0);
    }
    > .ng-enter.ng-enter-active, &.ng-enter.ng-enter-active {
      /* NEW content ACTIVELY sliding IN from the LEFT */
      @include translate3d(0, 0, 0);
      //.scroll { background: orange; } //for debugging
    }
    > .ng-leave.ng-leave-active, &.ng-leave.ng-leave-active {
      /* OLD content ACTIVELY sliding OUT to the RIGHT */
      @include translate3d(15%, 0, 0);
      //.scroll { background: maroon; } //for debugging
    }
  }
}



.slide-in-left {
  @include translate3d(0%,0,0);
  &.ng-enter, > .ng-enter {
    @include animation-name(slideInFromLeft);
    @include animation-duration($transition-duration);
    @include animation-timing-function(ease-in-out);
    @include animation-fill-mode(both);
  }
  &.ng-leave, > .ng-leave {
    @include animation-name(slideOutToLeft);
    @include animation-duration($transition-duration);
    @include animation-timing-function(ease-in-out);
    @include animation-fill-mode(both);
  }
}


.slide-in-left-add {
  @include translate3d(100%,0,0);
  @include animation-duration($transition-duration);
  @include animation-timing-function(ease-in-out);
  @include animation-fill-mode(both);
}
.slide-in-left-add-active {
  @include animation-name(slideInFromLeft);
}

.slide-out-left {
  @include translate3d(-100%,0,0);
  &.ng-enter, > .ng-enter {
    @include animation-name(slideOutToLeft);
    @include animation-duration($transition-duration);
    @include animation-timing-function(ease-in-out);
    @include animation-fill-mode(both);
  }
  &.ng-leave, > .ng-leave {
    @include animation-name(slideOutToLeft);
    @include animation-duration($transition-duration);
    @include animation-timing-function(ease-in-out);
    @include animation-fill-mode(both);
  }
}

.slide-out-left {
}

.slide-out-left-add {
  @include translate3d(0,0,0);
  @include animation-duration($transition-duration);
  @include animation-timing-function(ease-in-out);
  @include animation-fill-mode(both);
}
.slide-out-left-add-active {
  @include animation-name(slideOutToLeft);
}

.slide-in-right {
  @include translate3d(0%,0,0);
  &.ng-enter, > .ng-enter {
    @include animation-name(slideInFromRight);
    @include animation-duration($transition-duration);
    @include animation-timing-function(ease-in-out);
    @include animation-fill-mode(both);
  }
  &.ng-leave, > .ng-leave {
    @include animation-name(slideInFromRight);
    @include animation-duration($transition-duration);
    @include animation-timing-function(ease-in-out);
    @include animation-fill-mode(both);
  }
}

.slide-in-right-add {
  @include translate3d(-100%,0,0);
  @include animation-duration($transition-duration);
  @include animation-timing-function(ease-in-out);
  @include animation-fill-mode(both);
}
.slide-in-right-add-active {
  @include animation-name(slideInFromRight);
}

.slide-out-right {
  @include translate3d(100%,0,0);
  &.ng-enter, > .ng-enter {
    @include animation-name(slideOutToRight);
    @include animation-duration($transition-duration);
    @include animation-timing-function(ease-in-out);
    @include animation-fill-mode(both);
  }
  &.ng-leave, > .ng-leave {
    @include animation-name(slideOutToRight);
    @include animation-duration($transition-duration);
    @include animation-timing-function(ease-in-out);
    @include animation-fill-mode(both);
  }
}

.slide-out-right {
}
.slide-out-right-add {
  @include translate3d(0,0,0);
  @include animation-duration($transition-duration);
  @include animation-timing-function(ease-in-out);
  @include animation-fill-mode(both);
}
.slide-out-right-add-active {
  @include animation-name(slideOutToRight);
}

.slide-in-up {
  // Start it down low
  @include translate3d(0, 0%, 0);
  opacity: 1;

  &.ng-enter, .ng-enter {
    // Start it down low
    @include translate3d(0, 100%, 0);

    @include animation-duration(400ms);
    @include animation-timing-function($slide-in-up-function);
    @include animation-fill-mode(both);
    // Start hidden
    opacity: 0;
  }

  &.ng-enter-active, .ng-enter-active {
    @include animation-name(slideInUp);
  }

  &.ng-leave, .ng-leave {
    @include animation-duration(400ms);
    @include animation-timing-function($slide-in-up-function);
    @include animation-fill-mode(both);
  }

  &.ng-leave-active, .ng-leave {
    @include animation-name(slideOutUp);
  }
}

.slide-in-up-add {
  @include animation-duration(400ms);
  @include animation-timing-function($slide-in-up-function);
  @include animation-fill-mode(both);
}
.slide-in-up-add-active {
  @include animation-name(slideInUp);
}

.slide-in-up-remove {
  @include animation-duration(400ms);
  @include animation-timing-function($slide-in-up-function);
  @include animation-fill-mode(forwards);
}
.slide-in-up-remove-active {
  @include animation-name(slideOutUp);
}

.fade-in {
  @include animation(fadeOut 0.3s);
  &.active {
    @include animation(fadeIn 0.3s);
  }
}

.fade-in-not-out {
  &.ng-enter, .ng-enter {
    @include animation(fadeIn 0.3s);
    position: relative;
  }
  &.ng-leave, .ng-leave {
    display: none;
  }
}


/**
 * Some component specific animations
 */
$nav-title-slide-ios7-delay: 350ms;
.nav-title-slide-ios7 {
  > .ng-enter, &.ng-enter, 
  > .ng-leave, &.ng-leave {
    @include transition(all $nav-title-slide-ios7-delay);
    @include transition-timing-function($ios7-timing-function);
    opacity: 1;
  }
  > .ng-enter, &.ng-enter {
    @include translate3d(30%, 0, 0);
    opacity: 0;
  }
  > .ng-enter.ng-enter-active, &.ng-enter.ng-enter-active {
    @include translate3d(0, 0, 0);
    opacity: 1;
  }
  > .ng-leave.ng-leave-active, &.ng-leave.ng-leave-active {
    @include translate3d(-30%, 0, 0);
    opacity: 0;
  }

}
.reverse {
  .nav-title-slide-ios7 {
    > .ng-enter, &.ng-enter, 
    > .ng-leave, &.ng-leave {
      @include transition(all $nav-title-slide-ios7-delay);
      @include transition-timing-function($ios7-timing-function);
      opacity: 1;
    }
    > .ng-enter, &.ng-enter {
      @include translate3d(-30%, 0, 0);
      opacity: 0;
    }
    > .ng-enter.ng-enter-active, &.ng-enter.ng-enter-active {
      @include translate3d(0, 0, 0);
      opacity: 1;
    }
    > .ng-leave.ng-leave-active, &.ng-leave.ng-leave-active {
      @include translate3d(30%, 0, 0);
      opacity: 0;
    }
  }
}