Add insertion handle tests

content/public/android/javatests/src/org/chromium/content/browser/InsertionHandleTest.java

Index: content/public/android/javatests/src/org/chromium/content/browser/InsertionHandleTest.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/InsertionHandleTest.java b/content/public/android/javatests/src/org/chromium/content/browser/InsertionHandleTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..24baeb35543bc1a283958454404db95463f4914b
--- /dev/null
+++ b/content/public/android/javatests/src/org/chromium/content/browser/InsertionHandleTest.java
@@ -0,0 +1,201 @@
+// Copyright (c) 2012 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.
+
+package org.chromium.content.browser;
+
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.test.suitebuilder.annotation.MediumTest;
+import android.text.Editable;
+import android.text.Selection;
+
+import org.chromium.base.test.util.Feature;
+import org.chromium.content.browser.test.util.Criteria;
+import org.chromium.content.browser.test.util.CriteriaHelper;
+import org.chromium.content.browser.test.util.TouchUtils;
+
+public class InsertionHandleTest extends ContentShellTestBase {
+
+    private static final String FILENAME = "content/content_detection/editable_long_text.html";
+    // Offset to compensate for the fact that the handle is below the text.
+    private static final int VERTICAL_OFFSET = 10;
+    // These positions should both be in the text area and not within
+    // HANDLE_POSITON_TOLERANCE of each other in either coordinate.
+    private static final int INITIAL_CLICK_X = 100;
+    private static final int INITIAL_CLICK_Y = 100;
+    private static final int DRAG_TO_X = 287;
+    private static final int DRAG_TO_Y = 199;
+    private static final int HANDLE_POSITION_TOLERANCE = 60;
+    private static final String PASTE_TEXT = "**test text to paste**";
+
+    @MediumTest
+    @Feature({"TextSelection", "TextInput", "Main"})
+    public void testDragInsertionHandle() throws Throwable {
+        startActivityWithTestUrl(FILENAME);
+
+        clickToShowInsertionHandle();
+
+        InsertionHandleController ihc = getContentViewCore().getInsertionHandleControllerForTest();
+        HandleView handle = ihc.getHandleViewForTest();
+        int initialX = handle.getPositionX();
+        int initialY = handle.getPositionY();
+
+        TouchUtils.dragCompleteView(getInstrumentation(), getContentView(), initialX, DRAG_TO_X,
+                initialY + VERTICAL_OFFSET, DRAG_TO_Y, 5);
+
+        assertTrue(waitForHandleNear(handle, DRAG_TO_X, DRAG_TO_Y));
+
+        // Unselecting should cause the handle to disappear.
+        getImeAdapter().unselect();
+        assertTrue(waitForHandleShowingEquals(false));
+    }
+
+    private static boolean isHandleNear(HandleView handle, int x, int y) {
+        return (Math.abs(handle.getPositionX() - x) < HANDLE_POSITION_TOLERANCE) &&
+                (Math.abs(handle.getPositionY() - y) < HANDLE_POSITION_TOLERANCE);
+    }
+
+    private static boolean waitForHandleNear(final HandleView handle, final int x,
+            final int y) throws Throwable {
+        return CriteriaHelper.pollForCriteria(new Criteria() {
+            @Override
+            public boolean isSatisfied() {
+                return isHandleNear(handle, x, y);
+            }
+        });
+    }
+
+    private boolean waitForHandleShowingEquals(final boolean shouldBeShowing)
+            throws Throwable {
+        return CriteriaHelper.pollForCriteria(new Criteria() {
+            @Override
+            public boolean isSatisfied() {
+                InsertionHandleController ihc =
+                        getContentViewCore().getInsertionHandleControllerForTest();
+                boolean isShowing = ihc != null && ihc.isShowing();
+                return isShowing == shouldBeShowing;
+            }
+        });
+    }
+
+    @MediumTest
+    @Feature({"TextSelection", "TextInput"})
+    public void testPasteAtInsertionHandle() throws Throwable {
+        startActivityWithTestUrl(FILENAME);
+
+        clickToShowInsertionHandle();
+
+        assertTrue(waitForHasSelectionPosition());
+
+        int offset = getSelectionStart();
+        String initialText = getEditableText();
+
+        saveToClipboard(PASTE_TEXT);
+        pasteOnMainSync();
+
+        String expectedText =
+                initialText.substring(0, offset) + PASTE_TEXT + initialText.substring(offset);
+
+        // TODO(aurimas): The ImeAdapter is often not receiving the correct update from the paste,
+        // and so the editableText is never equal to the expectedText. Enable this check when fixed.
+        // http://crbug.com/163966
+        // assertTrue(waitForEditableTextEquals(expectedText));
+
+        assertTrue(waitForHandleShowingEquals(false));
+    }
+
+    private boolean waitForEditableTextEquals(final String expectedText)
+            throws Throwable {
+        return CriteriaHelper.pollForCriteria(new Criteria() {
+            @Override
+            public boolean isSatisfied() {
+                return getEditableText().trim().equals(expectedText.trim());
+            }
+        });
+    }
+
+    private boolean waitForHasSelectionPosition()
+            throws Throwable {
+        return CriteriaHelper.pollForCriteria(new Criteria() {
+            @Override
+            public boolean isSatisfied() {
+                int start = getSelectionStart();
+                int end = getSelectionEnd();
+                return start > 0 && start == end;
+            }
+        });
+    }
+
+    private void pasteOnMainSync() {
+        getInstrumentation().runOnMainSync(new Runnable() {
+            @Override
+            public void run() {
+                getContentViewCore().getInsertionHandleControllerForTest().paste();
+            }
+        });
+    }
+
+    @Override
+    protected void tearDown() {
+        // No way to just clear clipboard, so setting to empty string instead.
+        saveToClipboard("");
+    }
+
+    private void clickToShowInsertionHandle() throws Throwable {
+        TouchUtils.singleClickView(getInstrumentation(), getContentView(), INITIAL_CLICK_X,
+                INITIAL_CLICK_Y);
+        TouchUtils.sleepForDoubleTapTimeout(getInstrumentation());
+        TouchUtils.singleClickView(getInstrumentation(), getContentView(), INITIAL_CLICK_X,
+                INITIAL_CLICK_Y);
+        assertTrue(waitForHandleShowingEquals(true));
+        assertTrue(waitForZoomFinished());
+    }
+
+    private boolean waitForZoomFinished() throws Throwable {
+        // If the polling interval is too short, slowly zooming may be detected as not zooming.
+        final int POLLING_INTERVAL = 200;
+        return CriteriaHelper.pollForCriteria(new Criteria() {
+            int mPositionX = -1;
+            int mPositionY = -1;
+            @Override
+            public boolean isSatisfied() {
+                int lastPositionX = mPositionX;
+                int lastPositionY = mPositionY;
+                InsertionHandleController ihc =
+                        getContentViewCore().getInsertionHandleControllerForTest();
+                HandleView handle = ihc.getHandleViewForTest();
+                mPositionX = handle.getPositionX();
+                mPositionY = handle.getPositionY();
+                return mPositionX == lastPositionX && mPositionY == lastPositionY;
+            }
+        }, CriteriaHelper.DEFAULT_MAX_TIME_TO_POLL, POLLING_INTERVAL);
+    }
+
+    private int getSelectionStart() {
+        return Selection.getSelectionStart(getEditable());
+    }
+
+    private int getSelectionEnd() {
+        return Selection.getSelectionEnd(getEditable());
+    }
+
+    private Editable getEditable() {
+        return getContentViewCore().getEditableForTest();
+    }
+
+    private String getEditableText() {
+        return getEditable().toString();
+    }
+
+    private void saveToClipboard(String text) {
+        ClipboardManager clipMgr =
+                (ClipboardManager) getActivity().getSystemService(Context.CLIPBOARD_SERVICE);
+        clipMgr.setPrimaryClip(ClipData.newPlainText(null, text));
+    }
+
+    private ImeAdapter getImeAdapter() {
+        return getContentViewCore().getImeAdapterForTest();
+    }
+}