1 files changed, 72 insertions, 0 deletions
diff --git a/platform/lang-impl/src/com/intellij/codeInsight/documentation/QuickDocUtil.java b/platform/lang-impl/src/com/intellij/codeInsight/documentation/QuickDocUtil.java
new file mode 100644
index 000000000000..064bd020183b
--- /dev/null
+++ b/platform/lang-impl/src/com/intellij/codeInsight/documentation/QuickDocUtil.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.codeInsight.documentation;
+
+import com.intellij.openapi.application.ApplicationManager;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.ui.popup.JBPopup;
+import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.openapi.wm.ToolWindow;
+import com.intellij.openapi.wm.ToolWindowId;
+import com.intellij.openapi.wm.ToolWindowManager;
+import com.intellij.psi.PsiElement;
+import com.intellij.ui.content.Content;
+import com.intellij.ui.popup.AbstractPopup;
+import com.intellij.util.Producer;
+import org.jetbrains.annotations.NotNull;
+
+import javax.swing.*;
+
+/**
+ * @author gregsh
+ */
+public class QuickDocUtil {
+
+  public static void updateQuickDocAsync(@NotNull final PsiElement element, @NotNull final Producer<String> docProducer) {
+    final Project project = element.getProject();
+    ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
+      @Override
+      public void run() {
+        final String documentation = docProducer.produce();
+        if (StringUtil.isEmpty(documentation)) return;
+        // modal dialogs with fragment editors fix: can't guess proper modality state here
+        //noinspection SSBasedInspection
+        SwingUtilities.invokeLater(new Runnable() {
+          @Override
+          public void run() {
+            DocumentationManager documentationManager = DocumentationManager.getInstance(project);
+            DocumentationComponent component;
+            JBPopup hint = documentationManager.getDocInfoHint();
+            if (hint != null) {
+              component = (DocumentationComponent)((AbstractPopup)hint).getComponent();
+            }
+            else if (documentationManager.hasActiveDockedDocWindow()) {
+              ToolWindow toolWindow = ToolWindowManager.getInstance(project).getToolWindow(ToolWindowId.DOCUMENTATION);
+              Content selectedContent = toolWindow == null ? null : toolWindow.getContentManager().getSelectedContent();
+              component = selectedContent == null ? null : (DocumentationComponent)selectedContent.getComponent();
+            }
+            else {
+              component = null;
+            }
+            if (component != null) {
+              component.replaceText(documentation, element);
+            }
+          }
+        });
+      }
+    });
+  }
+}