[Android] Composited selection handle rendering

content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java

Index: content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java b/content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java
deleted file mode 100644
index bd3a464f0098acd0e2bc63dd72ed9db708962152..0000000000000000000000000000000000000000
--- a/content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java
+++ /dev/null
@@ -1,332 +0,0 @@
-// Copyright 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.input;
-
-import android.content.ClipboardManager;
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.graphics.drawable.Drawable;
-import android.view.Gravity;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.ViewGroup;
-import android.view.ViewGroup.LayoutParams;
-import android.widget.PopupWindow;
-
-import com.google.common.annotations.VisibleForTesting;
-
-import org.chromium.content.browser.PositionObserver;
-
-/**
- * CursorController for inserting text at the cursor position.
- */
-public abstract class InsertionHandleController implements CursorController {
-
-    /** The handle view, lazily created when first shown */
-    private HandleView mHandle;
-
-    /** The view over which the insertion handle should be shown */
-    private final View mParent;
-
-    /** True iff the insertion handle is currently showing */
-    private boolean mIsShowing;
-
-    /** True iff the insertion handle can be shown automatically when selection changes */
-    private boolean mAllowAutomaticShowing;
-
-    private final Context mContext;
-
-    private final PositionObserver mPositionObserver;
-
-    public InsertionHandleController(View parent, PositionObserver positionObserver) {
-        mParent = parent;
-
-        mContext = parent.getContext();
-        mPositionObserver = positionObserver;
-    }
-
-    /** Allows the handle to be shown automatically when cursor position changes */
-    public void allowAutomaticShowing() {
-        mAllowAutomaticShowing = true;
-    }
-
-    /** Disallows the handle from being shown automatically when cursor position changes */
-    public void hideAndDisallowAutomaticShowing() {
-        hide();
-        mAllowAutomaticShowing = false;
-    }
-
-    /**
-     * Shows the handle.
-     */
-    public void showHandle() {
-        createHandleIfNeeded();
-        showHandleIfNeeded();
-    }
-
-    void showPastePopup() {
-        if (mIsShowing) {
-            mHandle.showPastePopupWindow();
-        }
-    }
-
-    public void showHandleWithPastePopup() {
-        showHandle();
-        showPastePopup();
-    }
-
-    /**
-     * @return whether the handle is being dragged.
-     */
-    public boolean isDragging() {
-        return mHandle != null && mHandle.isDragging();
-    }
-
-    /** Shows the handle at the given coordinates, as long as automatic showing is allowed */
-    public void onCursorPositionChanged() {
-        if (mAllowAutomaticShowing) {
-            showHandle();
-        }
-    }
-
-    /**
-     * Moves the handle so that it points at the given coordinates.
-     * @param x Handle x in physical pixels.
-     * @param y Handle y in physical pixels.
-     */
-    public void setHandlePosition(float x, float y) {
-        mHandle.positionAt((int) x, (int) y);
-    }
-
-    /**
-     * If the handle is not visible, sets its visibility to View.VISIBLE and begins fading it in.
-     */
-    public void beginHandleFadeIn() {
-        mHandle.beginFadeIn();
-    }
-
-    /**
-     * Sets the handle to the given visibility.
-     */
-    public void setHandleVisibility(int visibility) {
-        mHandle.setVisibility(visibility);
-    }
-
-    int getHandleX() {
-        return mHandle.getAdjustedPositionX();
-    }
-
-    int getHandleY() {
-        return mHandle.getAdjustedPositionY();
-    }
-
-    @VisibleForTesting
-    public HandleView getHandleViewForTest() {
-        return mHandle;
-    }
-
-    @Override
-    public void onTouchModeChanged(boolean isInTouchMode) {
-        if (!isInTouchMode) {
-            hide();
-        }
-    }
-
-    @Override
-    public void hide() {
-        if (mIsShowing) {
-            if (mHandle != null) mHandle.hide();
-            mIsShowing = false;
-        }
-    }
-
-    @Override
-    public boolean isShowing() {
-        return mIsShowing;
-    }
-
-    @Override
-    public void beforeStartUpdatingPosition(HandleView handle) {}
-
-    @Override
-    public void updatePosition(HandleView handle, int x, int y) {
-        setCursorPosition(x, y);
-    }
-
-    /**
-     * The concrete implementation must cause the cursor position to move to the given
-     * coordinates and (possibly asynchronously) set the insertion handle position
-     * after the cursor position change is made via setHandlePosition.
-     * @param x
-     * @param y
-     */
-    protected abstract void setCursorPosition(int x, int y);
-
-    /** Pastes the contents of clipboard at the current insertion point */
-    protected abstract void paste();
-
-    /** Returns the current line height in pixels */
-    protected abstract int getLineHeight();
-
-    @Override
-    public void onDetached() {}
-
-    boolean canPaste() {
-        return ((ClipboardManager) mContext.getSystemService(
-                Context.CLIPBOARD_SERVICE)).hasPrimaryClip();
-    }
-
-    private void createHandleIfNeeded() {
-        if (mHandle == null) {
-            mHandle = new HandleView(this, HandleView.CENTER, mParent, mPositionObserver);
-        }
-    }
-
-    private void showHandleIfNeeded() {
-        if (!mIsShowing) {
-            mIsShowing = true;
-            mHandle.show();
-            setHandleVisibility(HandleView.VISIBLE);
-        }
-    }
-
-    /*
-     * This class is based on TextView.PastePopupMenu.
-     */
-    class PastePopupMenu implements OnClickListener {
-        private final PopupWindow mContainer;
-        private int mPositionX;
-        private int mPositionY;
-        private final View[] mPasteViews;
-        private final int[] mPasteViewLayouts;
-
-        public PastePopupMenu() {
-            mContainer = new PopupWindow(mContext, null,
-                    android.R.attr.textSelectHandleWindowStyle);
-            mContainer.setSplitTouchEnabled(true);
-            mContainer.setClippingEnabled(false);
-
-            mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT);
-            mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
-
-            final int[] POPUP_LAYOUT_ATTRS = {
-                android.R.attr.textEditPasteWindowLayout,
-                android.R.attr.textEditNoPasteWindowLayout,
-                android.R.attr.textEditSidePasteWindowLayout,
-                android.R.attr.textEditSideNoPasteWindowLayout,
-            };
-
-            mPasteViews = new View[POPUP_LAYOUT_ATTRS.length];
-            mPasteViewLayouts = new int[POPUP_LAYOUT_ATTRS.length];
-
-            TypedArray attrs = mContext.obtainStyledAttributes(POPUP_LAYOUT_ATTRS);
-            for (int i = 0; i < attrs.length(); ++i) {
-                mPasteViewLayouts[i] = attrs.getResourceId(attrs.getIndex(i), 0);
-            }
-            attrs.recycle();
-        }
-
-        private int viewIndex(boolean onTop) {
-            return (onTop ? 0 : 1 << 1) + (canPaste() ? 0 : 1 << 0);
-        }
-
-        private void updateContent(boolean onTop) {
-            final int viewIndex = viewIndex(onTop);
-            View view = mPasteViews[viewIndex];
-
-            if (view == null) {
-                final int layout = mPasteViewLayouts[viewIndex];
-                LayoutInflater inflater = (LayoutInflater) mContext.
-                    getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-                if (inflater != null) {
-                    view = inflater.inflate(layout, null);
-                }
-
-                if (view == null) {
-                    throw new IllegalArgumentException("Unable to inflate TextEdit paste window");
-                }
-
-                final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
-                view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
-                        ViewGroup.LayoutParams.WRAP_CONTENT));
-                view.measure(size, size);
-
-                view.setOnClickListener(this);
-
-                mPasteViews[viewIndex] = view;
-            }
-
-            mContainer.setContentView(view);
-        }
-
-        void show() {
-            updateContent(true);
-            positionAtCursor();
-        }
-
-        void hide() {
-            mContainer.dismiss();
-        }
-
-        boolean isShowing() {
-            return mContainer.isShowing();
-        }
-
-        @Override
-        public void onClick(View v) {
-            if (canPaste()) {
-                paste();
-            }
-            hide();
-        }
-
-        void positionAtCursor() {
-            View contentView = mContainer.getContentView();
-            int width = contentView.getMeasuredWidth();
-            int height = contentView.getMeasuredHeight();
-
-            int lineHeight = getLineHeight();
-
-            mPositionX = (int) (mHandle.getAdjustedPositionX() - width / 2.0f);
-            mPositionY = mHandle.getAdjustedPositionY() - height - lineHeight;
-
-            final int[] coords = new int[2];
-            mParent.getLocationInWindow(coords);
-            coords[0] += mPositionX;
-            coords[1] += mPositionY;
-
-            final int screenWidth = mContext.getResources().getDisplayMetrics().widthPixels;
-            if (coords[1] < 0) {
-                updateContent(false);
-                // Update dimensions from new view
-                contentView = mContainer.getContentView();
-                width = contentView.getMeasuredWidth();
-                height = contentView.getMeasuredHeight();
-
-                // Vertical clipping, move under edited line and to the side of insertion cursor
-                // TODO bottom clipping in case there is no system bar
-                coords[1] += height;
-                coords[1] += lineHeight;
-
-                // Move to right hand side of insertion cursor by default. TODO RTL text.
-                final Drawable handle = mHandle.getDrawable();
-                final int handleHalfWidth = handle.getIntrinsicWidth() / 2;
-
-                if (mHandle.getAdjustedPositionX() + width < screenWidth) {
-                    coords[0] += handleHalfWidth + width / 2;
-                } else {
-                    coords[0] -= handleHalfWidth + width / 2;
-                }
-            } else {
-                // Horizontal clipping
-                coords[0] = Math.max(0, coords[0]);
-                coords[0] = Math.min(screenWidth - width, coords[0]);
-            }
-
-            mContainer.showAtLocation(mParent, Gravity.NO_GRAVITY, coords[0], coords[1]);
-        }
-    }
-}