BI-30745 操控class来实现ie hack

src/base/pane.js

@@ -74,25 +74,20 @@ BI.Pane = BI.inherit(BI.Widget, {
                 width: 5
             }]
         });
-        var loadingGif = BI.createWidget({
-            type: "bi.layout",
-            cls: "loading-background",
-            height: 30
-        });
-        var loadingEffect = (BI.isIE() && BI.getIEVersion() < 10) ? loadingGif : loadingAnimation;
+        (BI.isIE() && BI.getIEVersion() < 10) && loadingAnimation.element.addClass("hack");
         if (o.overlap === true) {
             if (!BI.Layers.has(this.getName())) {
                 BI.createWidget({
                     type: "bi.absolute_center_adapt",
                     items: [{
-                        el: loadingEffect
+                        el: loadingAnimation
                     }],
                     element: BI.Layers.make(this.getName(), this)
                 });
             }
             BI.Layers.show(self.getName());
         } else if (BI.isNull(this._loading)) {
-            this._loading = loadingEffect;
+            this._loading = loadingAnimation;
             this._loading.element.css("zIndex", 1);
             BI.createWidget({
                 type: "bi.absolute_center_adapt",

src/less/base/pane.less

@@ -1,4 +1,5 @@
 @import "../index";
+@import "../resource/background";
 .bi-pane {
     min-height: 25px;
     .background-color(@color-bi-background-normal, 0);
@@ -17,12 +18,17 @@
         .animation-delay(-0.4s);
     }
     .keyframes (loading-widget, {
-        0%,
-        100% {
+        0%, 100% {
             .transform (scaleY(0.3));
         }
         50% {
             .transform (scaleY(1));
         }
     });
+    &.hack {
+        .loading-background;
+        div {
+            .background-color(@background-color-highlight, 0%);
+        }
+    }
 }