!1330 Gray out the Continue button After the last step

From: @feng_xue_feng
Reviewed-by: @yelihua,@yelihua,@ouwenchang
Signed-off-by: @ouwenchang

mindinsight/ui/src/mixins/debugger-mixin.vue

@@ -1436,6 +1436,9 @@ export default {
                   this.debuggerVersion = res.data.metadata.debugger_version;
                 }
                 this.metadata = res.data.metadata;
+                if (!this.trainId) {
+                  this.metadata.total_step_num = 2147483648;
+                }
                 if (
                   res &&
                 res.data &&

mindinsight/ui/src/views/debugger/debugger.vue

@@ -289,6 +289,7 @@ limitations under the License.
                         placement="top-start">
               <el-input v-model="step"
                         :placeholder="$t('debugger.inputStep')"
+                        :disabled="metadata.step === metadata.total_step_num && !!trainId"
                         @input="stepChange"
                         @keyup.native.enter="control(0)">
               </el-input>
@@ -296,13 +297,15 @@ limitations under the License.
             <el-button type="primary"
                        size="mini"
                        class="custom-btn green"
-                       :disabled="!(step && metadata.state === state.waiting)"
+                       :disabled="!(step && metadata.state === state.waiting)
+                       || (metadata.step === metadata.total_step_num && !!trainId)"
                        @click="control(0)">{{ $t('public.sure') }}</el-button>
           </div>
           <div class="btn-two">
             <el-button size="mini"
                        class="custom-btn white"
-                       :disabled="metadata.state !== state.waiting"
+                       :disabled="metadata.state !== state.waiting
+                       || (metadata.step === metadata.total_step_num && !!trainId)"
                        @click="control(1)">{{$t('debugger.continue')}}</el-button>
             <el-button size="mini"
                        class="custom-btn white"