<template>
  <div>
    <wxc-panel title="Transform" type="primary">
      <wxc-button value="Rotate" onclick="{{rotate}}" type="primary" size="middle"></wxc-button>
      <wxc-button value="Scale" onclick="{{scale}}" type="primary" size="middle" style="margin-top:12px;"></wxc-button>
      <wxc-button value="Translate" onclick="{{translate}}" type="primary" size="middle"
                 style="margin-top:12px;"></wxc-button>
      <wxc-button value="Transform" onclick="{{transform}}" type="success" size="middle"
                 style="margin-top:12px;"></wxc-button>
    </wxc-panel>

    <wxc-panel title="Others" type="primary">
      <wxc-button value="BgColor" onclick="{{color}}" type="primary" size="middle"></wxc-button>
      <wxc-button value="Opacity" onclick="{{opacity}}" type="primary" size="middle"
                 style="margin-top:12px;"></wxc-button>
      <wxc-button value="All" onclick="{{composite}}" type="success" size="middle" style="margin-top:12px;"></wxc-button>
    </wxc-panel>

    <div id="block" class="block" style="transform-origin:{{transformOrigin}}">
      <text class="block-txt">Anim</text>
    </div>
  </div>
</template>

<script>
  require('weex-components');
  module.exports = {
    data: {
      transformOrigin: 'center center',
      current_rotate: 0,
      current_scale: 1,
      current_color: '#FF0000',
      current_opacity: 1,
      current_translate: '',
      current_transform: '',
      isStop: true
    },
    methods: {
      anim: function(styles, timingFunction, duration, callback) {
        this.$call('animation', 'transition', this._ids.block.el.ref, {
          styles: styles,
          timingFunction: timingFunction,
          duration: duration
        }, callback);
      },
      rotate: function() {
        var self = this;
        self.current_rotate += 90;
        self.anim({
          transform: 'rotate(' + self.current_rotate + 'deg)'
        }, 'ease-in-out', 500, function() {
          if (self.current_rotate === 360) {
            self.current_rotate = 0;
          }
          else {
            self.rotate();
          }
        });
      },
      translate: function() {
        this.current_translate = this.current_translate ? '' : 'translate(50%, 50%)';
        this.anim({
          transform: this.current_translate
        }, 'ease-in', 500, function() {
        });
      },
      scale: function() {
        var self = this;
        self.current_scale = self.current_scale === 2 ? .5 : 2
        self.anim({
          transform: 'scale(' + self.current_scale + ')'
        }, 'linear', 500, function() {
        });
      },
      transform: function() {
        var self = this;
        this.current_transform = this.current_transform ? '' : 'rotate(45deg) scale(1.5)';
        this.anim({
          transform: this.current_transform,
          transformOrigin: 'left top'
        }, 'ease-out', 500, function() {
          if (self.current_transform !== '') {
            self.anim({
              transform: 'rotate(-90deg) scale(1.2)',
              transformOrigin: 'left top'
            }, 'ease-out', 500, function() {
            })
          }
          else {

          }
        });
      },
      composite: function() {
        var self = this;
        self.current_transform = self.current_transform ? '' : 'rotate(45deg) scale(1.5) translate(50%, 50%)';
        self.current_color = self.current_color === '#F0AD4E' ? '#D9534F' : '#F0AD4E';
        self.current_opacity = self.current_opacity === 1 ? 0.1 : 1;
        this.anim({
          transform: this.current_transform,
          transformOrigin: 'left top',
          backgroundColor: self.current_color,
          opacity: self.current_opacity
        }, 'ease-out', 1000, function() {
        });
      },
      color: function() {
        var self = this;
        self.current_color = self.current_color === '#F0AD4E' ? '#D9534F' : '#F0AD4E';
        self.anim({
          backgroundColor: self.current_color
        }, 'linear', 500, function() {
        });
      },
      opacity: function() {
        var self = this;
        self.current_opacity = self.current_opacity === 1 ? 0.1 : 1;
        self.anim({
          opacity: self.current_opacity
        }, 'linear', 500, function() {
        });
      }
    }
  };
</script>

<style>
  .block {
    position: absolute;
    width: 250px;
    height: 250px;
    top: 300px;
    left: 400px;
    background-color: #F0AD4E;
    align-items: center;
    justify-content: center;
  }

  .block-txt {
    color: #FFFFFF;
    font-size: 70px;
  }
</style>