From 8979c734695c2e4e9063e622f8a0bb3accc97a5b Mon Sep 17 00:00:00 2001
From: "zhigang.li" <zhigang.li@tendcloud.com>
Date: Thu, 7 Jun 2018 15:34:42 +0800
Subject: [PATCH] add split components

---
 examples/app.vue                 |   1 +
 examples/main.js                 |   4 +
 examples/routers/split.vue       |  74 +++++++++++++++
 src/components/split/index.js    |   2 +
 src/components/split/split.vue   | 155 +++++++++++++++++++++++++++++++
 src/components/split/trigger.vue |  39 ++++++++
 src/index.js                     |   2 +
 src/styles/components/index.less |   1 +
 src/styles/components/split.less | 114 +++++++++++++++++++++++
 9 files changed, 392 insertions(+)
 create mode 100644 examples/routers/split.vue
 create mode 100644 src/components/split/index.js
 create mode 100644 src/components/split/split.vue
 create mode 100644 src/components/split/trigger.vue
 create mode 100644 src/styles/components/split.less

diff --git a/examples/app.vue b/examples/app.vue
index e8cc10b3..de15360a 100644
--- a/examples/app.vue
+++ b/examples/app.vue
@@ -16,6 +16,7 @@ nav {
     <div class="container">
         <nav>
             <ul>
+                <li><router-link to="/split">Split</router-link></li>
                 <li><router-link to="/layout">Layout</router-link></li>
                 <li><router-link to="/affix">Affix</router-link></li>
                 <li><router-link to="/grid">Grid</router-link></li>
diff --git a/examples/main.js b/examples/main.js
index 9d7c0e26..1dcce760 100644
--- a/examples/main.js
+++ b/examples/main.js
@@ -19,6 +19,10 @@ Vue.config.debug = true;
 const router = new VueRouter({
     esModule: false,
     routes: [
+        {
+            path: '/split',
+            component: (resolve) => require(['./routers/split.vue'], resolve)
+        },
         {
             path: '/layout',
             component: (resolve) => require(['./routers/layout.vue'], resolve)
diff --git a/examples/routers/split.vue b/examples/routers/split.vue
new file mode 100644
index 00000000..4649a509
--- /dev/null
+++ b/examples/routers/split.vue
@@ -0,0 +1,74 @@
+<template>
+  <div class="split-pane-page-wrapper">
+    <Split v-model="offset" @on-moving="handleMoving">
+      <div slot="left" class="pane left-pane">
+        <Split v-model="offsetVertical" mode="vertical" @on-moving="handleMoving">
+          <div slot="top" class="pane top-pane"></div>
+          <div slot="bottom" class="pane bottom-pane"></div>
+          <div slot="trigger" class="custom-trigger">
+            <Icon class="trigger-icon" :size="22" type="android-more-vertical" color="#000000"/>
+          </div>
+        </Split>
+      </div>
+      <div slot="right" class="pane right-pane"></div>
+    </Split>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'split_pane_page',
+  data () {
+    return {
+      offset: 0.6,
+      offsetVertical: '250px'
+    }
+  },
+  methods: {
+    handleMoving (e) {
+      console.log(e.atMin, e.atMax)
+    }
+  }
+}
+</script>
+
+<style lang="less">
+.center-middle{
+  position: absolute;
+  left: 50%;
+  top: 50%;
+  transform: translate(-50%, -50%);
+}
+.split-pane-page-wrapper{
+  height: 600px;
+  .pane{
+    width: 100%;
+    height: 100%;
+    &.left-pane{
+      background: sandybrown;
+    }
+    &.right-pane{
+      background: palevioletred;
+    }
+    &.top-pane{
+      background: sandybrown;
+    }
+    &.bottom-pane{
+      background: palevioletred;
+    }
+  }
+  .custom-trigger{
+    width: 20px;
+    height: 20px;
+    border-radius: 50%;
+    background: #fff;
+    position: absolute;
+    .center-middle;
+    box-shadow: 0 0 6px 0 rgba(28, 36, 56, 0.4);
+    cursor: row-resize;
+    i.trigger-icon{
+      .center-middle;
+    }
+  }
+}
+</style>
diff --git a/src/components/split/index.js b/src/components/split/index.js
new file mode 100644
index 00000000..f5ed60e0
--- /dev/null
+++ b/src/components/split/index.js
@@ -0,0 +1,2 @@
+import Split from './split.vue'
+export default Split
diff --git a/src/components/split/split.vue b/src/components/split/split.vue
new file mode 100644
index 00000000..c632ef06
--- /dev/null
+++ b/src/components/split/split.vue
@@ -0,0 +1,155 @@
+<template>
+  <div ref="outerWrapper" :class="wrapperClasses">
+    <div v-if="isHorizontal" :class="`${prefix}-horizontal`">
+      <div :style="{right: `${anotherOffset}%`}" :class="[`${prefix}-pane`, 'left-pane']"><slot name="left"/></div>
+      <div :class="`${prefix}-trigger-con`" :style="{left: `${offset}%`}" @mousedown="handleMousedown">
+        <slot name="trigger">
+          <trigger mode="vertical"/>
+        </slot>
+      </div>
+      <div :style="{left: `${offset}%`}" :class="[`${prefix}-pane`, 'right-pane']"><slot name="right"/></div>
+    </div>
+    <div v-else :class="`${prefix}-vertical`">
+      <div :style="{bottom: `${anotherOffset}%`}" :class="[`${prefix}-pane`, 'top-pane']"><slot name="top"/></div>
+     <div :class="`${prefix}-trigger-con`" :style="{top: `${offset}%`}" @mousedown="handleMousedown">
+        <slot name="trigger">
+          <trigger mode="horizontal"/>
+        </slot>
+      </div>
+      <div :style="{top: `${offset}%`}" :class="[`${prefix}-pane`, 'bottom-pane']"><slot name="bottom"/></div>
+    </div>
+  </div>
+</template>
+
+<script>
+import { oneOf } from '../../utils/assist';
+import { on, off } from '../../utils/dom';
+import Trigger from './trigger.vue'
+export default {
+  name: 'SplitPane',
+  components: {
+    Trigger
+  },
+  props: {
+    value: {
+      type: [Number, String],
+      default: 0.5
+    },
+    mode: {
+      validator (value) {
+        return oneOf(value, ['horizontal', 'vertical'])
+      },
+      default: 'horizontal'
+    },
+    min: {
+      type: [Number, String],
+      default: '40px'
+    },
+    max: {
+      type: [Number, String],
+      default: '40px'
+    }
+  },
+  /**
+   * Events
+   * @on-move-start
+   * @on-moving 返回值：事件对象，但是在事件对象中加入了两个参数：atMin(当前是否在最小值处), atMax(当前是否在最大值处)
+   * @on-move-end
+   */
+  data () {
+    return {
+      prefix: 'ivu-split',
+      offset: 0,
+      oldOffset: 0,
+      isMoving: false
+    }
+  },
+  computed: {
+    wrapperClasses () {
+      return [
+        `${this.prefix}-wrapper`,
+        this.isMoving ? 'no-select' : ''
+      ]
+    },
+    isHorizontal () {
+      return this.mode === 'horizontal'
+    },
+    anotherOffset () {
+      return 100 - this.offset
+    },
+    valueIsPx () {
+      return typeof this.value === 'string'
+    },
+    offsetSize () {
+      return this.isHorizontal ? 'offsetWidth' : 'offsetHeight'
+    },
+    computedMin () {
+      return this.getComputedThresholdValue('min')
+    },
+    computedMax () {
+      return this.getComputedThresholdValue('max')
+    }
+  },
+  methods: {
+    px2percent (numerator, denominator) {
+      return parseFloat(numerator) / parseFloat(denominator)
+    },
+    getComputedThresholdValue (type) {
+      let size = this.$refs.outerWrapper[this.offsetSize]
+      if (this.valueIsPx) return typeof this[type] === 'string' ? this[type] : size * this[type]
+      else return typeof this[type] === 'string' ? this.px2percent(this[type], size) : this[type]
+    },
+    getMin (value1, value2) {
+      if (this.valueIsPx) return `${Math.min(parseFloat(value1), parseFloat(value2))}px`
+      else return Math.min(value1, value2)
+    },
+    getMax (value1, value2) {
+      if (this.valueIsPx) return `${Math.max(parseFloat(value1), parseFloat(value2))}px`
+      else return Math.max(value1, value2)
+    },
+    getAnotherOffset (value) {
+      let res = 0
+      if (this.valueIsPx) res = `${this.$refs.outerWrapper[this.offsetSize] - parseFloat(value)}px`
+      else res = 1 - value
+      return res
+    },
+    handleMove (e) {
+      let pageOffset = this.isHorizontal ? e.pageX : e.pageY
+      let offset = pageOffset - this.initOffset
+      let outerWidth = this.$refs.outerWrapper[this.offsetSize]
+      let value = this.valueIsPx ? `${parseFloat(this.oldOffset) + offset}px` : (this.px2percent(outerWidth * this.oldOffset + offset, outerWidth))
+      let anotherValue = this.getAnotherOffset(value)
+      if (parseFloat(value) <= parseFloat(this.computedMin)) value = this.getMax(value, this.computedMin)
+      if (parseFloat(anotherValue) <= parseFloat(this.computedMax)) value = this.getAnotherOffset(this.getMax(anotherValue, this.computedMax))
+      e.atMin = this.value === this.computedMin
+      e.atMax = this.valueIsPx ? this.getAnotherOffset(this.value) === this.computedMax : this.getAnotherOffset(this.value).toFixed(5) === this.computedMax.toFixed(5)
+      this.$emit('input', value)
+      this.$emit('on-moving', e)
+    },
+    handleUp () {
+      this.isMoving = false
+      off(document, 'mousemove', this.handleMove)
+      off(document, 'mouseup', this.handleUp)
+      this.$emit('on-move-end')
+    },
+    handleMousedown (e) {
+      this.initOffset = this.isHorizontal ? e.pageX : e.pageY
+      this.oldOffset = this.value
+      this.isMoving = true
+      on(document, 'mousemove', this.handleMove)
+      on(document, 'mouseup', this.handleUp)
+      this.$emit('on-move-start')
+    }
+  },
+  watch: {
+    value () {
+      this.offset = (this.valueIsPx ? this.px2percent(this.value, this.$refs.outerWrapper[this.offsetSize]) : this.value) * 10000 / 100
+    }
+  },
+  mounted () {
+    this.$nextTick(() => {
+      this.offset = (this.valueIsPx ? this.px2percent(this.value, this.$refs.outerWrapper[this.offsetSize]) : this.value) * 10000 / 100
+    })
+  }
+}
+</script>
diff --git a/src/components/split/trigger.vue b/src/components/split/trigger.vue
new file mode 100644
index 00000000..eb4017c8
--- /dev/null
+++ b/src/components/split/trigger.vue
@@ -0,0 +1,39 @@
+<template>
+  <div :class="classes">
+    <div :class="barConClasses">
+      <i :class="`${prefix}-bar`" v-once v-for="i in 8" :key="`trigger-${i}`"></i>
+    </div>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'Trigger',
+  props: {
+    mode: String
+  },
+  data () {
+    return {
+      prefix: 'ivu-split-trigger',
+      initOffset: 0
+    }
+  },
+  computed: {
+    isVertical () {
+      return this.mode === 'vertical'
+    },
+    classes () {
+      return [
+        this.prefix,
+        this.isVertical ? `${this.prefix}-vertical` : `${this.prefix}-horizontal`
+      ]
+    },
+    barConClasses () {
+      return [
+        `${this.prefix}-bar-con`,
+        this.isVertical ? 'vertical' : 'horizontal'
+      ]
+    }
+  }
+}
+</script>
diff --git a/src/index.js b/src/index.js
index ee7d67dc..8c113013 100644
--- a/src/index.js
+++ b/src/index.js
@@ -23,6 +23,7 @@ import Icon from './components/icon';
 import Input from './components/input';
 import InputNumber from './components/input-number';
 import Scroll from './components/scroll';
+import Split from './components/split';
 import Layout from './components/layout';
 import LoadingBar from './components/loading-bar';
 import Menu from './components/menu';
@@ -86,6 +87,7 @@ const components = {
     InputNumber,
     Scroll,
     Sider: Sider,
+    Split,
     Submenu: Menu.Sub,
     Layout: Layout,
     LoadingBar,
diff --git a/src/styles/components/index.less b/src/styles/components/index.less
index cb877ad4..11b8da86 100644
--- a/src/styles/components/index.less
+++ b/src/styles/components/index.less
@@ -24,6 +24,7 @@
 @import "modal";
 @import "select";
 @import "select-dropdown";
+@import "split";
 @import "tooltip";
 @import "poptip";
 @import "input";
diff --git a/src/styles/components/split.less b/src/styles/components/split.less
new file mode 100644
index 00000000..0b5e81d0
--- /dev/null
+++ b/src/styles/components/split.less
@@ -0,0 +1,114 @@
+@split-prefix-cls: ~"@{css-prefix}split";
+@box-shadow: 0 0 4px 0 rgba(28, 36, 56, 0.4);
+@trigger-bar-background: rgba(23, 35, 61, 0.25);
+@trigger-background: #F8F8F9;
+@trigger-width: 6px;
+@trigger-bar-width: 4px;
+@trigger-bar-offset: (@trigger-width - @trigger-bar-width) / 2;
+@trigger-bar-interval: 3px;
+@trigger-bar-weight: 1px;
+@trigger-bar-con-height: (@trigger-bar-weight + @trigger-bar-interval) * 8;
+
+.@{split-prefix-cls}{
+  &-wrapper{
+    position: relative;
+    width: 100%;
+    height: 100%;
+  }
+  &-pane{
+    position: absolute;
+    &.left-pane, &.right-pane{
+      top: 0px;
+      bottom: 0px;
+    }
+    &.left-pane{
+      left: 0px;
+    }
+    &.right-pane{
+      right: 0px;
+    }
+    &.top-pane, &.bottom-pane{
+      left: 0px;
+      right: 0px;
+    }
+    &.top-pane{
+      top: 0px;
+    }
+    &.bottom-pane{
+      bottom: 0px;
+    }
+  }
+  &-trigger{
+    &-con{
+      position: absolute;
+      transform: translate(-50%, -50%);
+      z-index: 10;
+    }
+    &-bar-con{
+      position: absolute;
+      overflow: hidden;
+      &.vertical{
+        left: @trigger-bar-offset;
+        top: 50%;
+        height: @trigger-bar-con-height;
+        transform: translate(0, -50%);
+      }
+      &.horizontal{
+        left: 50%;
+        top: @trigger-bar-offset;
+        width: @trigger-bar-con-height;
+        transform: translate(-50%, 0);
+      }
+    }
+    &-vertical{
+      width: @trigger-width;
+      height: 100%;
+      background: @trigger-background;
+      box-shadow: @box-shadow;
+      cursor: col-resize;
+      .@{split-prefix-cls}-trigger-bar{
+        width: @trigger-bar-width;
+        height: 1px;
+        background: @trigger-bar-background;
+        float: left;
+        margin-top: @trigger-bar-interval;
+      }
+    }
+    &-horizontal{
+      height: @trigger-width;
+      width: 100%;
+      background: @trigger-background;
+      box-shadow: @box-shadow;
+      cursor: row-resize;
+      .@{split-prefix-cls}-trigger-bar{
+        height: @trigger-bar-width;
+        width: 1px;
+        background: @trigger-bar-background;
+        float: left;
+        margin-right: @trigger-bar-interval;
+      }
+    }
+  }
+  &-horizontal{
+    .@{split-prefix-cls}-trigger-con{
+      top: 50%;
+      height: 100%;
+      width: 0;
+    }
+  }
+  &-vertical{
+    .@{split-prefix-cls}-trigger-con{
+      left: 50%;
+      height: 0;
+      width: 100%;
+    }
+  }
+  .no-select{
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    -khtml-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+  }
+}