Blink handle selection handle visibility

third_party/WebKit/Source/core/input/EventHandlerTest.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/input/EventHandler.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Range.h"
 #include "core/editing/Editor.h"
 #include "core/editing/FrameSelection.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/page/AutoscrollController.h"
 #include "core/page/Page.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/PlatformMouseEvent.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <memory>
 
 namespace blink {
 
 class EventHandlerTest : public ::testing::Test {
  protected:
   void SetUp() override;
 
   Page& page() const { return m_dummyPageHolder->page(); }
   Document& document() const { return m_dummyPageHolder->document(); }
+  FrameSelection& selection() const { return document().frame()->selection(); }
 
   void setHtmlInnerHTML(const char* htmlContent);
 
  private:
   std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
 };
 
 class TapEventBuilder : public PlatformGestureEvent {
  public:
   TapEventBuilder(IntPoint position, int tapCount)
       : PlatformGestureEvent(PlatformEvent::GestureTap,
                              position,
                              position,
                              IntSize(5, 5),
                              WTF::monotonicallyIncreasingTime(),
                              static_cast<PlatformEvent::Modifiers>(0),
                              PlatformGestureSourceTouchscreen) {
     m_data.m_tap.m_tapCount = tapCount;
   }
 };
 
+class LongPressEventBuilder : public PlatformGestureEvent {
+ public:
+  LongPressEventBuilder(IntPoint position)
+      : PlatformGestureEvent(PlatformEvent::GestureLongPress,
+                             position,
+                             position,
+                             IntSize(5, 5),
+                             WTF::monotonicallyIncreasingTime(),
+                             static_cast<PlatformEvent::Modifiers>(0),
+                             PlatformGestureSourceTouchscreen) {}
+};
+
+class MousePressEventBuilder : public PlatformMouseEvent {
+ public:
+  MousePressEventBuilder(IntPoint position,
+                         int clickCount,
+                         WebMouseEvent::Button button)
+      : PlatformMouseEvent(position,
+                           position,
+                           button,
+                           PlatformEvent::MousePressed,
+                           clickCount,
+                           static_cast<PlatformEvent::Modifiers>(0),
+                           WTF::monotonicallyIncreasingTime()) {}
+};
+
 void EventHandlerTest::SetUp() {
   m_dummyPageHolder = DummyPageHolder::create(IntSize(300, 400));
 }
 
 void EventHandlerTest::setHtmlInnerHTML(const char* htmlContent) {
   document().documentElement()->setInnerHTML(String::fromUTF8(htmlContent));
   document().view()->updateAllLifecyclePhases();
 }
 
 TEST_F(EventHandlerTest, dragSelectionAfterScroll) {
@@ skipping 30 matching lines @@
   page().autoscrollController().animate(WTF::monotonicallyIncreasingTime());
   page().animator().serviceScriptedAnimations(
       WTF::monotonicallyIncreasingTime());
 
   PlatformMouseEvent mouseUpEvent(
       IntPoint(100, 50), IntPoint(200, 250), WebPointerProperties::Button::Left,
       PlatformEvent::MouseReleased, 1, static_cast<PlatformEvent::Modifiers>(0),
       WTF::monotonicallyIncreasingTime());
   document().frame()->eventHandler().handleMouseReleaseEvent(mouseUpEvent);
 
-  FrameSelection& selection = document().frame()->selection();
-  ASSERT_TRUE(selection.isRange());
+  ASSERT_TRUE(selection().isRange());
   Range* range =
-      createRange(selection.selection().toNormalizedEphemeralRange());
+      createRange(selection().selection().toNormalizedEphemeralRange());
   ASSERT_TRUE(range);
   EXPECT_EQ("Line 1\nLine 2", range->text());
 }
 
 TEST_F(EventHandlerTest, multiClickSelectionFromTap) {
   setHtmlInnerHTML(
       "<style> body { margin: 0px; } .line { display: block; width: 300px; "
       "height: 30px; } </style>"
       "<body contenteditable='true'><span class='line' id='line'>One Two "
       "Three</span></body>");
 
-  FrameSelection& selection = document().frame()->selection();
   Node* line = document().getElementById("line")->firstChild();
 
   TapEventBuilder singleTapEvent(IntPoint(0, 0), 1);
   document().frame()->eventHandler().handleGestureEvent(singleTapEvent);
-  ASSERT_TRUE(selection.isCaret());
-  EXPECT_EQ(Position(line, 0), selection.start());
+  ASSERT_TRUE(selection().isCaret());
+  EXPECT_EQ(Position(line, 0), selection().start());
 
   // Multi-tap events on editable elements should trigger selection, just
   // like multi-click events.
   TapEventBuilder doubleTapEvent(IntPoint(0, 0), 2);
   document().frame()->eventHandler().handleGestureEvent(doubleTapEvent);
-  ASSERT_TRUE(selection.isRange());
-  EXPECT_EQ(Position(line, 0), selection.start());
+  ASSERT_TRUE(selection().isRange());
+  EXPECT_EQ(Position(line, 0), selection().start());
   if (document().frame()->editor().isSelectTrailingWhitespaceEnabled()) {
-    EXPECT_EQ(Position(line, 4), selection.end());
-    EXPECT_EQ("One ", WebString(selection.selectedText()).utf8());
+    EXPECT_EQ(Position(line, 4), selection().end());
+    EXPECT_EQ("One ", WebString(selection().selectedText()).utf8());
   } else {
-    EXPECT_EQ(Position(line, 3), selection.end());
-    EXPECT_EQ("One", WebString(selection.selectedText()).utf8());
+    EXPECT_EQ(Position(line, 3), selection().end());
+    EXPECT_EQ("One", WebString(selection().selectedText()).utf8());
   }
 
   TapEventBuilder tripleTapEvent(IntPoint(0, 0), 3);
   document().frame()->eventHandler().handleGestureEvent(tripleTapEvent);
-  ASSERT_TRUE(selection.isRange());
-  EXPECT_EQ(Position(line, 0), selection.start());
-  EXPECT_EQ(Position(line, 13), selection.end());
-  EXPECT_EQ("One Two Three", WebString(selection.selectedText()).utf8());
+  ASSERT_TRUE(selection().isRange());
+  EXPECT_EQ(Position(line, 0), selection().start());
+  EXPECT_EQ(Position(line, 13), selection().end());
+  EXPECT_EQ("One Two Three", WebString(selection().selectedText()).utf8());
 }
 
 TEST_F(EventHandlerTest, multiClickSelectionFromTapDisabledIfNotEditable) {
   setHtmlInnerHTML(
       "<style> body { margin: 0px; } .line { display: block; width: 300px; "
       "height: 30px; } </style>"
       "<span class='line' id='line'>One Two Three</span>");
 
-  FrameSelection& selection = document().frame()->selection();
   Node* line = document().getElementById("line")->firstChild();
 
   TapEventBuilder singleTapEvent(IntPoint(0, 0), 1);
   document().frame()->eventHandler().handleGestureEvent(singleTapEvent);
-  ASSERT_TRUE(selection.isCaret());
-  EXPECT_EQ(Position(line, 0), selection.start());
+  ASSERT_TRUE(selection().isCaret());
+  EXPECT_EQ(Position(line, 0), selection().start());
 
   // As the text is readonly, multi-tap events should not trigger selection.
   TapEventBuilder doubleTapEvent(IntPoint(0, 0), 2);
   document().frame()->eventHandler().handleGestureEvent(doubleTapEvent);
-  ASSERT_TRUE(selection.isCaret());
-  EXPECT_EQ(Position(line, 0), selection.start());
+  ASSERT_TRUE(selection().isCaret());
+  EXPECT_EQ(Position(line, 0), selection().start());
 
   TapEventBuilder tripleTapEvent(IntPoint(0, 0), 3);
   document().frame()->eventHandler().handleGestureEvent(tripleTapEvent);
-  ASSERT_TRUE(selection.isCaret());
-  EXPECT_EQ(Position(line, 0), selection.start());
+  ASSERT_TRUE(selection().isCaret());
+  EXPECT_EQ(Position(line, 0), selection().start());
 }
 
 TEST_F(EventHandlerTest, draggedInlinePositionTest) {
   setHtmlInnerHTML(
       "<style>"
       "body { margin: 0px; }"
       ".line { font-family: sans-serif; background: blue; width: 300px; "
       "height: 30px; font-size: 40px; margin-left: 250px; }"
       "</style>"
       "<div style='width: 300px; height: 100px;'>"
@@ skipping 69 matching lines @@
           .build());
   PlatformMouseEvent mouseDownEvent(
       IntPoint(0, 0), IntPoint(100, 200), WebPointerProperties::Button::Right,
       PlatformEvent::MousePressed, 1, PlatformEvent::Modifiers::RightButtonDown,
       WTF::monotonicallyIncreasingTime());
   EXPECT_EQ(
       WebInputEventResult::HandledApplication,
       document().frame()->eventHandler().sendContextMenuEvent(mouseDownEvent));
 }
 
+TEST_F(EventHandlerTest, EmptyTextfieldInsertionOnTap) {
+  setHtmlInnerHTML("<textarea cols=50 rows=50></textarea>");
+
+  TapEventBuilder singleTapEvent(IntPoint(200, 200), 1);
+  document().frame()->eventHandler().handleGestureEvent(singleTapEvent);
+
+  ASSERT_TRUE(selection().isCaret());
+  ASSERT_FALSE(selection().isHandleVisible());
+}
+
+TEST_F(EventHandlerTest, NonEmptyTextfieldInsertionOnTap) {
+  setHtmlInnerHTML("<textarea cols=50 rows=50>Enter text</textarea>");
+
+  TapEventBuilder singleTapEvent(IntPoint(200, 200), 1);
+  document().frame()->eventHandler().handleGestureEvent(singleTapEvent);
+
+  ASSERT_TRUE(selection().isCaret());
+  ASSERT_TRUE(selection().isHandleVisible());
+}
+
+TEST_F(EventHandlerTest, EmptyTextfieldInsertionOnLongPress) {
+  setHtmlInnerHTML("<textarea cols=50 rows=50></textarea>");
+
+  LongPressEventBuilder longPressEvent(IntPoint(200, 200));
+  document().frame()->eventHandler().handleGestureEvent(longPressEvent);
+
+  ASSERT_TRUE(selection().isCaret());
+  ASSERT_TRUE(selection().isHandleVisible());
+
+  // Single Tap on an empty edit field should clear insertion handle
+  TapEventBuilder singleTapEvent(IntPoint(200, 200), 1);
+  document().frame()->eventHandler().handleGestureEvent(singleTapEvent);
+
+  ASSERT_TRUE(selection().isCaret());
+  ASSERT_FALSE(selection().isHandleVisible());
+}
+
+TEST_F(EventHandlerTest, NonEmptyTextfieldInsertionOnLongPress) {
+  setHtmlInnerHTML("<textarea cols=50 rows=50>Enter text</textarea>");
+
+  LongPressEventBuilder longPressEvent(IntPoint(200, 200));
+  document().frame()->eventHandler().handleGestureEvent(longPressEvent);
+
+  ASSERT_TRUE(selection().isCaret());
+  ASSERT_TRUE(selection().isHandleVisible());
+}
+
+TEST_F(EventHandlerTest, ClearHandleAfterTap) {
+  setHtmlInnerHTML("<textarea cols=50 rows=50>Enter text</textarea>");
+
+  // Show handle
+  LongPressEventBuilder longPressEvent(IntPoint(200, 200));
+  document().frame()->eventHandler().handleGestureEvent(longPressEvent);
+
+  ASSERT_TRUE(selection().isCaret());
+  ASSERT_TRUE(selection().isHandleVisible());
+
+  // Tap away from text area should clear handle
+  TapEventBuilder singleTapEvent(IntPoint(700, 700), 1);
+  document().frame()->eventHandler().handleGestureEvent(singleTapEvent);
+
+  ASSERT_TRUE(selection().isNone());
+  ASSERT_FALSE(selection().isHandleVisible());
+}
+
+TEST_F(EventHandlerTest, HandleNotShownOnMouseEvents) {
+  setHtmlInnerHTML("<textarea cols=50 rows=50>Enter text</textarea>");
+
+  MousePressEventBuilder leftMousePressEvent(
+      IntPoint(200, 200), 1, WebPointerProperties::Button::Left);
+  document().frame()->eventHandler().handleMousePressEvent(leftMousePressEvent);
+
+  ASSERT_TRUE(selection().isCaret());
+  ASSERT_FALSE(selection().isHandleVisible());
+
+  MousePressEventBuilder rightMousePressEvent(
+      IntPoint(200, 200), 1, WebPointerProperties::Button::Right);
+  document().frame()->eventHandler().handleMousePressEvent(
+      rightMousePressEvent);
+
+  ASSERT_TRUE(selection().isCaret());
+  ASSERT_FALSE(selection().isHandleVisible());
+
+  MousePressEventBuilder doubleClickMousePressEvent(
+      IntPoint(200, 200), 2, WebPointerProperties::Button::Left);
+  document().frame()->eventHandler().handleMousePressEvent(
+      doubleClickMousePressEvent);
+
+  ASSERT_TRUE(selection().isRange());
+  ASSERT_FALSE(selection().isHandleVisible());
+
+  MousePressEventBuilder tripleClickMousePressEvent(
+      IntPoint(200, 200), 3, WebPointerProperties::Button::Left);
+  document().frame()->eventHandler().handleMousePressEvent(
+      tripleClickMousePressEvent);
+
+  ASSERT_TRUE(selection().isRange());
+  ASSERT_FALSE(selection().isHandleVisible());
+}
+
 }  // namespace blink