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packages/drawer/index.js

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+import Drawer from './src/main';
+
+/* istanbul ignore next */
+Drawer.install = function(Vue) {
+  Vue.component(Drawer.name, Drawer);
+};
+
+export default Drawer;

packages/drawer/src/main.vue

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+<template>
+  <transition
+    name="el-drawer-fade"
+    @after-enter="afterEnter"
+    @after-leave="afterLeave">
+    <div
+      class="el-drawer__wrapper"
+      tabindex="-1"
+      v-show="visible">
+      <div
+        class="el-drawer__container"
+        :class="visible && 'el-drawer__open'"
+        @click.self="handleWrapperClick"
+        role="document"
+        tabindex="-1">
+        <div
+          aria-modal="true"
+          aria-labelledby="el-drawer__title"
+          :aria-label="title"
+          class="el-drawer"
+          :class="[direction, customClass]"
+          :style="isHorizontal ? `width: ${drawerSize}` : `height: ${drawerSize}`"
+          ref="drawer"
+          role="dialog"
+          tabindex="-1"
+          >
+          <header class="el-drawer__header" id="el-drawer__title" v-if="withHeader">
+            <slot name="title">
+              <span role="heading" :title="title">{{ title }}</span>
+            </slot>
+            <button
+              :aria-label="`close ${title || 'drawer'}`"
+              class="el-drawer__close-btn"
+              type="button"
+              v-if="showClose"
+              @click="closeDrawer">
+              <i class="el-dialog__close el-icon el-icon-close"></i>
+            </button>
+          </header>
+          <section class="el-drawer__body" v-if="rendered">
+            <slot></slot>
+          </section>
+        </div>
+      </div>
+    </div>
+  </transition>
+</template>
+
+<script>
+import Popup from 'element-ui/src/utils/popup';
+import emitter from 'element-ui/src/mixins/emitter';
+
+export default {
+  name: 'ElDrawer',
+  mixins: [Popup, emitter],
+  props: {
+    appendToBody: {
+      type: Boolean,
+      default: false
+    },
+    beforeClose: {
+      type: Function
+    },
+    customClass: {
+      type: String,
+      default: ''
+    },
+    closeOnPressEscape: {
+      type: Boolean,
+      default: true
+    },
+    destroyOnClose: {
+      type: Boolean,
+      default: false
+    },
+    modal: {
+      type: Boolean,
+      default: true
+    },
+    direction: {
+      type: String,
+      default: 'rtl',
+      validator(val) {
+        return ['ltr', 'rtl', 'ttb', 'btt'].indexOf(val) !== -1;
+      }
+    },
+    modalAppendToBody: {
+      type: Boolean,
+      default: true
+    },
+    showClose: {
+      type: Boolean,
+      default: true
+    },
+    size: {
+      type: [Number, String],
+      default: '30%'
+    },
+    title: {
+      type: String,
+      default: ''
+    },
+    visible: {
+      type: Boolean
+    },
+    wrapperClosable: {
+      type: Boolean,
+      default: true
+    },
+    withHeader: {
+      type: Boolean,
+      default: true
+    }
+  },
+  computed: {
+    isHorizontal() {
+      return this.direction === 'rtl' || this.direction === 'ltr';
+    },
+    drawerSize() {
+      return typeof this.size === 'number' ? `${this.size}px` : this.size;
+    }
+  },
+  data() {
+    return {
+      closed: false,
+      prevActiveElement: null
+    };
+  },
+  watch: {
+    visible(val) {
+      if (val) {
+        this.closed = false;
+        this.$emit('open');
+        if (this.appendToBody) {
+          document.body.appendChild(this.$el);
+        }
+        this.prevActiveElement = document.activeElement;
+      } else {
+        if (!this.closed) this.$emit('close');
+        this.$nextTick(() => {
+          if (this.prevActiveElement) {
+            this.prevActiveElement.focus();
+          }
+        });
+      }
+    }
+  },
+  methods: {
+    afterEnter() {
+      this.$emit('opened');
+    },
+    afterLeave() {
+      this.$emit('closed');
+    },
+    hide(cancel) {
+      if (cancel !== false) {
+        this.$emit('update:visible', false);
+        this.$emit('close');
+        if (this.destroyOnClose === true) {
+          this.rendered = false;
+        }
+        this.closed = true;
+      }
+    },
+    handleWrapperClick() {
+      if (this.wrapperClosable) {
+        this.closeDrawer();
+      }
+    },
+    closeDrawer() {
+      if (typeof this.beforeClose === 'function') {
+        this.beforeClose(this.hide);
+      } else {
+        this.hide();
+      }
+    },
+    handleClose() {
+      // This method here will be called by PopupManger, when the `closeOnPressEscape` was set to true
+      // pressing `ESC` will call this method, and also close the drawer.
+      // This method also calls `beforeClose` if there was one.
+      this.closeDrawer();
+    }
+  },
+  mounted() {
+    if (this.visible) {
+      this.rendered = true;
+      this.open();
+    }
+  },
+  destroyed() {
+    // if appendToBody is true, remove DOM node after destroy
+    if (this.appendToBody && this.$el && this.$el.parentNode) {
+      this.$el.parentNode.removeChild(this.$el);
+    }
+  }
+};
+</script>