Add EventHandlerRegistry

Source/web/tests/WebViewTest.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 33 matching lines @@
 #include "WebFrameImpl.h"
 #include "WebHitTestResult.h"
 #include "WebInputEvent.h"
 #include "WebSettings.h"
 #include "WebSettingsImpl.h"
 #include "WebViewClient.h"
 #include "WebViewImpl.h"
 #include "WebWidget.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
+#include "core/dom/EventHandlerRegistry.h"
 #include "core/html/HTMLDocument.h"
 #include "core/html/HTMLIFrameElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLTextAreaElement.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/frame/FrameView.h"
 #include "core/page/Chrome.h"
 #include "core/frame/Settings.h"
 #include "platform/KeyboardCodes.h"
 #include "platform/graphics/Color.h"
@@ skipping 1466 matching lines @@
     {
         int value = m_hasTouchEventHandlerCount[state];
         m_hasTouchEventHandlerCount[state] = 0;
         return value;
     }
 
 private:
     int m_hasTouchEventHandlerCount[2];
 };
 
-// This test verifies that WebWidgetClient::hasTouchEventHandlers is called accordingly for various
-// calls to Document::did{Add|Remove|Clear}TouchEventHandler. Verifying that those calls are made
-// correctly is the job of LayoutTests/fast/events/touch/touch-handler-count.html.
+// This test verifies that WebWidgetClient::hasTouchEventHandlers is called
+// accordingly for various calls to EventHandlerRegistry::did{Add|Remove|
+// RemoveAll}EventHandler(..., TouchEvent). Verifying that those calls are made
+// correctly is the job of LayoutTests/fast/events/event-handler-count.html.
 TEST_F(WebViewTest, HasTouchEventHandlers)
 {
     TouchEventHandlerWebViewClient client;
     std::string url = m_baseURL + "has_touch_event_handlers.html";
     URLTestHelpers::registerMockedURLLoad(toKURL(url), "has_touch_event_handlers.html");
     WebViewImpl* webViewImpl = m_webViewHelper.initializeAndLoad(url, true, 0, &client);
+    const WebCore::EventHandlerRegistry::EventHandlerClass touchEvent = WebCore::EventHandlerRegistry::TouchEvent;
 
     // The page is initialized with at least one no-handlers call.
     // In practice we get two such calls because WebViewHelper::initializeAndLoad first
     // initializes and empty frame, and then loads a document into it, so there are two
     // FrameLoader::commitProvisionalLoad calls.
     EXPECT_GE(client.getAndResetHasTouchEventHandlerCallCount(false), 1);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding the first document handler results in a has-handlers call.
     WebCore::Document* document = webViewImpl->mainFrameImpl()->frame()->document();
-    document->didAddTouchEventHandler(document);
+    WebCore::EventHandlerRegistry* registry = WebCore::EventHandlerRegistry::from(*document);
+    registry->didAddEventHandler(*document, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding another handler has no effect.
-    document->didAddTouchEventHandler(document);
+    registry->didAddEventHandler(*document, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Removing the duplicate handler has no effect.
-    document->didRemoveTouchEventHandler(document);
+    registry->didRemoveEventHandler(*document, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Removing the final handler results in a no-handlers call.
-    document->didRemoveTouchEventHandler(document);
+    registry->didRemoveEventHandler(*document, touchEvent);
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding a handler on a div results in a has-handlers call.
     WebCore::Element* parentDiv = document->getElementById("parentdiv");
     ASSERT(parentDiv);
-    document->didAddTouchEventHandler(parentDiv);
+    registry->didAddEventHandler(*parentDiv, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding a duplicate handler on the div, clearing all document handlers
     // (of which there are none) and removing the extra handler on the div
     // all have no effect.
-    document->didAddTouchEventHandler(parentDiv);
-    document->didClearTouchEventHandlers(document);
-    document->didRemoveTouchEventHandler(parentDiv);
+    registry->didAddEventHandler(*parentDiv, touchEvent);
+    registry->didRemoveAllEventHandlers(*document);
+    registry->didRemoveEventHandler(*parentDiv, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Removing the final handler on the div results in a no-handlers call.
-    document->didRemoveTouchEventHandler(parentDiv);
+    registry->didRemoveEventHandler(*parentDiv, touchEvent);
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding two handlers then clearing them in a single call results in a
     // has-handlers then no-handlers call.
-    document->didAddTouchEventHandler(parentDiv);
+    registry->didAddEventHandler(*parentDiv, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(true));
-    document->didAddTouchEventHandler(parentDiv);
+    registry->didAddEventHandler(*parentDiv, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
-    document->didClearTouchEventHandlers(parentDiv);
+    registry->didRemoveAllEventHandlers(*parentDiv);
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
+}
+
+TEST_F(WebViewTest, HasTouchEventHandlersInChildDocument)
+{
+    TouchEventHandlerWebViewClient client;
+    std::string url = m_baseURL + "has_touch_event_handlers.html";
+    URLTestHelpers::registerMockedURLLoad(toKURL(url), "has_touch_event_handlers.html");
+    WebViewImpl* webViewImpl = m_webViewHelper.initializeAndLoad(url, true, 0, &client);
+    const WebCore::EventHandlerRegistry::EventHandlerClass touchEvent = WebCore::EventHandlerRegistry::TouchEvent;
+
+    // The page is initialized with at least one no-handlers call.
+    // In practice we get two such calls because WebViewHelper::initializeAndLoad first
+    // initializes and empty frame, and then loads a document into it, so there are two
+    // FrameLoader::commitProvisionalLoad calls.
+    EXPECT_GE(client.getAndResetHasTouchEventHandlerCallCount(false), 1);
+    EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding a handler inside of a child iframe results in a has-handlers call.
+    WebCore::Document* document = webViewImpl->mainFrameImpl()->frame()->document();
+    WebCore::EventHandlerRegistry* registry = WebCore::EventHandlerRegistry::from(*document);
     WebCore::Element* childFrame = document->getElementById("childframe");
     ASSERT(childFrame);
     WebCore::Document* childDocument = toHTMLIFrameElement(childFrame)->contentDocument();
+    WebCore::EventHandlerRegistry* childRegistry = WebCore::EventHandlerRegistry::from(*childDocument);
     WebCore::Element* childDiv = childDocument->getElementById("childdiv");
     ASSERT(childDiv);
-    childDocument->didAddTouchEventHandler(childDiv);
+    childRegistry->didAddEventHandler(*childDiv, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding and clearing handlers in the parent doc or elsewhere in the child doc
     // has no impact.
-    document->didAddTouchEventHandler(document);
-    document->didAddTouchEventHandler(childFrame);
-    childDocument->didAddTouchEventHandler(childDocument);
-    document->didClearTouchEventHandlers(document);
-    document->didClearTouchEventHandlers(childFrame);
-    childDocument->didClearTouchEventHandlers(childDocument);
+    registry->didAddEventHandler(*document, touchEvent);
+    registry->didAddEventHandler(*childFrame, touchEvent);
+    childRegistry->didAddEventHandler(*childDocument, touchEvent);
+    registry->didRemoveAllEventHandlers(*document);
+    registry->didRemoveAllEventHandlers(*childFrame);
+    childRegistry->didRemoveAllEventHandlers(*childDocument);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Removing the final handler inside the child frame results in a no-handlers call.
-    childDocument->didRemoveTouchEventHandler(childDiv);
+    childRegistry->didRemoveAllEventHandlers(*childDiv);
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding a handler inside the child frame results in a has-handlers call.
-    childDocument->didAddTouchEventHandler(childDocument);
+    childRegistry->didAddEventHandler(*childDocument, touchEvent);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Adding a handler in the parent document and removing the one in the frame
     // has no effect.
-    document->didAddTouchEventHandler(childFrame);
-    childDocument->didRemoveTouchEventHandler(childDocument);
-    childDocument->didClearTouchEventHandlers(childDocument);
-    document->didClearTouchEventHandlers(document);
+    registry->didAddEventHandler(*childFrame, touchEvent);
+    childRegistry->didRemoveEventHandler(*childDocument, touchEvent);
+    childRegistry->didRemoveAllEventHandlers(*childDocument);
+    registry->didRemoveAllEventHandlers(*document);
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 
     // Now removing the handler in the parent document results in a no-handlers call.
-    document->didRemoveTouchEventHandler(childFrame);
+    registry->didRemoveEventHandler(*childFrame, touchEvent);
     EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(false));
     EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
 }
+
+// This test verifies that WebWidgetClient::hasTouchEventHandlers is called
+// accordingly for various calls to EventHandlerRegistry::did{Add|Remove|
+// RemoveAll}ExternalEventHandler(TouchEvent).
+TEST_F(WebViewTest, HasExternalTouchEventHandlers)
+{
+    TouchEventHandlerWebViewClient client;
+    WebViewImpl* webViewImpl = m_webViewHelper.initializeAndLoad("about:blank", true, 0, &client);
+    const AtomicString& touchstart = WebCore::EventTypeNames::touchstart;
+
+    // See comment in WebViewTest::HasTouchHandlers.
+    EXPECT_GE(client.getAndResetHasTouchEventHandlerCallCount(false), 1);
+    EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
+
+    // Adding the first document handler results in a has-handlers call.
+    WebCore::Document* document = webViewImpl->mainFrameImpl()->frame()->document();
+    WebCore::EventHandlerRegistry* registry = WebCore::EventHandlerRegistry::from(*document);
+    registry->didAddExternalEventHandler(touchstart);
+    EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
+    EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(true));
+
+    // Adding another handler has no effect.
+    registry->didAddExternalEventHandler(touchstart);
+    EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
+    EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
+
+    // Removing the duplicate handler has no effect.
+    registry->didRemoveExternalEventHandler(touchstart);
+    EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(false));
+    EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
+
+    // Removing the final handler results in a no-handlers call.
+    registry->didRemoveExternalEventHandler(touchstart);
+    EXPECT_EQ(1, client.getAndResetHasTouchEventHandlerCallCount(false));
+    EXPECT_EQ(0, client.getAndResetHasTouchEventHandlerCallCount(true));
+}
 
 static WebRect ExpectedRootBounds(WebCore::Document* document, float scaleFactor)
 {
     WebCore::Element* element = document->getElementById("root");
     if (!element)
         element = document->getElementById("target");
     if (element->hasTagName(WebCore::HTMLNames::iframeTag))
         return ExpectedRootBounds(toHTMLIFrameElement(element)->contentDocument(), scaleFactor);
 
     WebCore::IntRect boundingBox = element->pixelSnappedBoundingBox();
@@ skipping 174 matching lines @@
     client.reset();
     EXPECT_FALSE(client.textIsUpdated());
     document->setFocusedElement(nullptr);
     webViewImpl->setFocus(false);
     EXPECT_NE(document->focusedElement(), static_cast<WebCore::Element*>(textAreaElement));
     inputElement->setValue("testB3");
     EXPECT_FALSE(client.textIsUpdated());
 }
 
 } // namespace