[bugfix] Toast: overlay blocked by other element (youzan#740)

packages/mixins/popup/context.js

@@ -1,5 +1,5 @@
-const PopupContext = {
-  idSeed: 1,
+export default {
+  id: 1,
   zIndex: 2000,
   stack: [],
 
@@ -11,5 +11,3 @@ const PopupContext = {
     return this.stack[this.stack.length - 1];
   }
 };
-
-export default PopupContext;

packages/mixins/popup/index.js

@@ -26,49 +26,90 @@ export default {
     }
   },
 
-  data() {
-    this._popupId = 'popup-' + context.plusKey('idSeed');
-    return {
-      opened: false,
-      pos: {
-        x: 0,
-        y: 0
-      }
-    };
-  },
-
   watch: {
     value(val) {
       this[val ? 'open' : 'close']();
     },
 
     getContainer() {
       this.move();
+    },
+
+    overlay() {
+      this.renderOverlay();
+    }
+  },
+
+  created() {
+    this._popupId = 'popup-' + context.plusKey('id');
+    this.pos = {
+      x: 0,
+      y: 0
+    };
+    if (this.value) {
+      this.open();
     }
   },
 
   mounted() {
     if (this.getContainer) {
       this.move();
     }
-    if (this.value) {
-      this.open();
-    }
   },
 
   beforeDestroy() {
-    this.doAfterClose();
+    this.close();
   },
 
   methods: {
-    recordPosition(e) {
+    open() {
+      /* istanbul ignore next */
+      if (this.$isServer) {
+        return;
+      }
+
+      // 如果属性中传入了`zIndex`，则覆盖`context`中对应的`zIndex`
+      if (this.zIndex !== undefined) {
+        context.zIndex = this.zIndex;
+      }
+
+      if (this.lockScroll) {
+        document.body.classList.add('van-overflow-hidden');
+        on(document, 'touchstart', this.onTouchStart);
+        on(document, 'touchmove', this.onTouchMove);
+      }
+
+      this.renderOverlay();
+      this.$emit('input', true);
+    },
+
+    close() {
+      if (this.lockScroll) {
+        document.body.classList.remove('van-overflow-hidden');
+        off(document, 'touchstart', this.onTouchStart);
+        off(document, 'touchmove', this.onTouchMove);
+      }
+
+      manager.close(this._popupId);
+      this.$emit('input', false);
+    },
+
+    move() {
+      if (this.getContainer) {
+        this.getContainer().appendChild(this.$el);
+      } else if (this.$parent) {
+        this.$parent.$el.appendChild(this.$el);
+      }
+    },
+
+    onTouchStart(e) {
       this.pos = {
         x: e.touches[0].clientX,
         y: e.touches[0].clientY
       };
     },
 
-    watchTouchMove(e) {
+    onTouchMove(e) {
       const { pos } = this;
       const dx = e.touches[0].clientX - pos.x;
       const dy = e.touches[0].clientY - pos.y;
@@ -97,64 +138,17 @@ export default {
       }
     },
 
-    open() {
-      /* istanbul ignore next */
-      if (this.opened || this.$isServer) {
-        return;
-      }
-
-      // 如果属性中传入了`zIndex`，则覆盖`context`中对应的`zIndex`
-      if (this.zIndex !== undefined) {
-        context.zIndex = this.zIndex;
-      }
-
+    renderOverlay() {
       if (this.overlay) {
         manager.open(this, {
-          id: this._popupId,
-          dom: this.$el,
           zIndex: context.plusKey('zIndex'),
           className: this.overlayClass,
           customStyle: this.overlayStyle
         });
+      } else {
+        manager.close(this._popupId);
       }
-
-      if (this.lockScroll) {
-        document.body.classList.add('van-overflow-hidden');
-        on(document, 'touchstart', this.recordPosition);
-        on(document, 'touchmove', this.watchTouchMove);
-      }
-
       this.$el.style.zIndex = context.plusKey('zIndex');
-      this.$emit('input', true);
-      this.opened = true;
-    },
-
-    close() {
-      if (!this.opened || this.$isServer) {
-        return;
-      }
-
-      this.$emit('input', false);
-      this.opened = false;
-      this.doAfterClose();
-    },
-
-    doAfterClose() {
-      manager.close(this._popupId);
-
-      if (this.lockScroll) {
-        document.body.classList.remove('van-overflow-hidden');
-        off(document, 'touchstart', this.recordPosition);
-        off(document, 'touchmove', this.watchTouchMove);
-      }
-    },
-
-    move() {
-      if (this.getContainer) {
-        this.getContainer().appendChild(this.$el);
-      } else if (this.$parent) {
-        this.$parent.$el.appendChild(this.$el);
-      }
     }
   }
 };

packages/mixins/popup/manager.js

@@ -9,13 +9,13 @@ const defaultConfig = {
 
 export default {
   open(vm, config) {
-    const { id, dom } = config;
-    const exist = context.stack.some(item => item.id === id);
+    const exist = context.stack.some(item => item.id === vm._popupId);
 
     /* istanbul ignore next */
     if (!exist) {
-      const targetNode = dom && dom.parentNode && dom.parentNode.nodeType !== 11 ? dom.parentNode : document.body;
-      context.stack.push({ vm, id, config, targetNode });
+      const el = vm.$el;
+      const targetNode = el && el.parentNode && el.parentNode.nodeType !== 11 ? el.parentNode : document.body;
+      context.stack.push({ vm, config, targetNode });
       this.update();
     };
   },
@@ -24,11 +24,11 @@ export default {
     const { stack } = context;
 
     if (stack.length) {
-      if (context.top.id === id) {
+      if (context.top.vm._popupId === id) {
         stack.pop();
         this.update();
       } else {
-        context.stack = stack.filter(item => item.id !== id);
+        context.stack = stack.filter(item => item.vm._popupId !== id);
       }
     }
   },
@@ -65,10 +65,8 @@ export default {
   onClick() {
     if (context.top) {
       const { vm } = context.top;
-      if (vm) {
-        vm.$emit('click-overlay');
-        vm.closeOnClickOverlay && vm.close();
-      }
+      vm.$emit('click-overlay');
+      vm.closeOnClickOverlay && vm.close();
     }
   }
 };

packages/toast/index.js

@@ -6,10 +6,11 @@ const defaultOptions = {
   type: 'text',
   mask: false,
   message: '',
-  visible: true,
+  value: true,
   duration: 3000,
   position: 'middle',
-  forbidClick: false
+  forbidClick: false,
+  overlayStyle: {}
 };
 const parseOptions = message => isObj(message) ? message : { message };
 
@@ -28,18 +29,28 @@ function createInstance() {
   return queue[queue.length - 1];
 };
 
+// transform toast options to popup props
+function transformer(options) {
+  options.overlay = options.mask;
+  if (options.forbidClick && !options.overlay) {
+    options.overlay = true;
+    options.overlayStyle = { background: 'transparent' };
+  }
+  return options;
+}
+
 function Toast(options = {}) {
   const toast = createInstance();
 
   options = {
     ...currentOptions,
     ...parseOptions(options),
     clear() {
-      toast.visible = false;
+      toast.value = false;
     }
   };
 
-  Object.assign(toast, options);
+  Object.assign(toast, transformer(options));
   clearTimeout(toast.timer);
 
   if (options.duration > 0) {

packages/toast/toast.vue

@@ -1,51 +1,47 @@
 <template>
   <transition name="van-fade">
-    <div class="van-toast-wrapper" v-show="visible">
-      <div class="van-toast" :class="[`van-toast--${displayStyle}`, `van-toast--${position}`]">
-        <!-- text only -->
-        <div v-if="displayStyle === 'text'">{{ message }}</div>
-        <div v-if="displayStyle === 'html'" v-html="message" />
-
-        <!-- with icon -->
-        <template v-if="displayStyle === 'default'">
-          <loading v-if="type === 'loading'" color="white" />
-          <icon v-else class="van-toast__icon" :name="type" />
-          <div v-if="hasMessage" class="van-toast__text">{{ message }}</div>
-        </template>
-      </div>
-      <div class="van-toast__overlay" :class="{ 'van-toast__overlay--mask': mask }" v-if="forbidClick || mask" />
+    <div class="van-toast" :class="[`van-toast--${displayStyle}`, `van-toast--${position}`]" v-show="value">
+      <!-- text only -->
+      <div v-if="displayStyle === 'text'">{{ message }}</div>
+      <div v-if="displayStyle === 'html'" v-html="message" />
+
+      <!-- with icon -->
+      <template v-if="displayStyle === 'default'">
+        <loading v-if="type === 'loading'" color="white" />
+        <icon v-else class="van-toast__icon" :name="type" />
+        <div v-if="hasMessage" class="van-toast__text">{{ message }}</div>
+      </template>
     </div>
   </transition>
 </template>
 
 <script>
 import create from '../utils/create';
+import Popup from '../mixins/popup';
 
 const STYLE_LIST = ['success', 'fail', 'loading'];
 
 export default create({
   name: 'toast',
 
+  mixins: [Popup],
+
   props: {
-    mask: Boolean,
     message: [String, Number],
-    forbidClick: Boolean,
     type: {
       type: String,
       default: 'text'
     },
     position: {
       type: String,
       default: 'middle'
+    },
+    lockScroll: {
+      type: Boolean,
+      default: false
     }
   },
 
-  data() {
-    return {
-      visible: false
-    };
-  },
-
   computed: {
     displayStyle() {
       return STYLE_LIST.indexOf(this.type) !== -1 ? 'default' : this.type;

packages/vant-css/src/toast.css

@@ -6,7 +6,6 @@
   left: 50%;
   display: flex;  
   color: $white;
-  z-index: 3001;
   font-size: 12px;
   line-height: 1.2;
   border-radius: 5px;
@@ -18,20 +17,6 @@
   transform: translate3d(-50%, -50%, 0);
   background-color: rgba(0, 0, 0, .7);
 
-  &__overlay {
-    position: fixed;
-    top: 0;
-    left: 0;
-    width: 100%;
-    height: 100%;
-    z-index: 3000;
-    background-color: transparent;
-
-    &--mask {
-      background-color: rgba(0, 0, 0, .5);
-    }
-  }
-
   &--text {
     padding: 12px;
     min-width: 220px;