android: Introduce a ui::PlatformWindow implementation for android.

components/view_manager/native_viewport/android/src/org/chromium/mojo/PlatformViewportAndroid.java

Index: components/view_manager/native_viewport/android/src/org/chromium/mojo/PlatformViewportAndroid.java
diff --git a/components/view_manager/native_viewport/android/src/org/chromium/mojo/PlatformViewportAndroid.java b/components/view_manager/native_viewport/android/src/org/chromium/mojo/PlatformViewportAndroid.java
deleted file mode 100644
index 330ef85c39fdc739330dd98d719bb8de84e85a87..0000000000000000000000000000000000000000
--- a/components/view_manager/native_viewport/android/src/org/chromium/mojo/PlatformViewportAndroid.java
+++ /dev/null
@@ -1,184 +0,0 @@
-// Copyright 2013 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.mojo;
-
-import android.app.Activity;
-import android.content.Context;
-import android.view.KeyEvent;
-import android.view.MotionEvent;
-import android.view.Surface;
-import android.view.SurfaceHolder;
-import android.view.SurfaceView;
-import android.view.View;
-
-import org.chromium.base.CalledByNative;
-import org.chromium.base.JNINamespace;
-
-/**
- * Exposes SurfaceView to native code.
- */
-@JNINamespace("native_viewport")
-public class PlatformViewportAndroid extends SurfaceView {
-
-    private long mNativeMojoViewport;
-    private final SurfaceHolder.Callback mSurfaceCallback;
-
-    @CalledByNative
-    public static PlatformViewportAndroid createForActivity(
-            Activity activity, long nativeViewport) {
-        PlatformViewportAndroid rv = new PlatformViewportAndroid(activity, nativeViewport);
-        activity.setContentView(rv);
-        return rv;
-    }
-
-    public PlatformViewportAndroid(Context context, long nativeViewport) {
-        super(context);
-
-        setFocusable(true);
-        setFocusableInTouchMode(true);
-
-        mNativeMojoViewport = nativeViewport;
-        assert mNativeMojoViewport != 0;
-
-        final float density = context.getResources().getDisplayMetrics().density;
-
-        mSurfaceCallback = new SurfaceHolder.Callback() {
-            @Override
-            public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
-                assert mNativeMojoViewport != 0;
-                nativeSurfaceSetSize(mNativeMojoViewport, width, height, density);
-            }
-
-            @Override
-            public void surfaceCreated(SurfaceHolder holder) {
-                assert mNativeMojoViewport != 0;
-                nativeSurfaceCreated(mNativeMojoViewport, holder.getSurface(), density);
-            }
-
-            @Override
-            public void surfaceDestroyed(SurfaceHolder holder) {
-                assert mNativeMojoViewport != 0;
-                nativeSurfaceDestroyed(mNativeMojoViewport);
-            }
-        };
-        getHolder().addCallback(mSurfaceCallback);
-
-    }
-
-    @CalledByNative
-    public void detach() {
-        getHolder().removeCallback(mSurfaceCallback);
-        mNativeMojoViewport = 0;
-    }
-
-    @Override
-    protected void onWindowVisibilityChanged(int visibility) {
-        super.onWindowVisibilityChanged(visibility);
-        if (visibility == View.VISIBLE) {
-            requestFocusFromTouch();
-            requestFocus();
-        }
-    }
-
-    @Override
-    public boolean onTouchEvent(MotionEvent event) {
-        final int actionMasked = event.getActionMasked();
-        if (actionMasked == MotionEvent.ACTION_POINTER_DOWN
-                || actionMasked == MotionEvent.ACTION_POINTER_UP) {
-            // Up/down events identify a single point.
-            return notifyTouchEventAtIndex(event, event.getActionIndex());
-        }
-        assert event.getPointerCount() != 0;
-        // All other types can have more than one point.
-        boolean result = false;
-        for (int i = 0, count = event.getPointerCount(); i < count; i++) {
-            final boolean sub_result = notifyTouchEventAtIndex(event, i);
-            result |= sub_result;
-        }
-        return result;
-    }
-
-    @Override
-    public boolean dispatchKeyEvent(KeyEvent event) {
-        if (privateDispatchKeyEvent(event)) {
-            return true;
-        }
-        return super.dispatchKeyEvent(event);
-    }
-
-    @Override
-    public boolean dispatchKeyEventPreIme(KeyEvent event) {
-        if (privateDispatchKeyEvent(event)) {
-            return true;
-        }
-        return super.dispatchKeyEventPreIme(event);
-    }
-
-    @Override
-    public boolean dispatchKeyShortcutEvent(KeyEvent event) {
-        if (privateDispatchKeyEvent(event)) {
-            return true;
-        }
-        return super.dispatchKeyShortcutEvent(event);
-    }
-
-    private boolean notifyTouchEventAtIndex(MotionEvent event, int index) {
-        return nativeTouchEvent(mNativeMojoViewport, event.getEventTime(), event.getActionMasked(),
-                event.getPointerId(index), event.getX(index), event.getY(index),
-                event.getPressure(index), event.getTouchMajor(index), event.getTouchMinor(index),
-                event.getOrientation(index), event.getAxisValue(MotionEvent.AXIS_HSCROLL, index),
-                event.getAxisValue(MotionEvent.AXIS_VSCROLL, index));
-    }
-
-    private boolean privateDispatchKeyEvent(KeyEvent event) {
-        if (event.getAction() == KeyEvent.ACTION_MULTIPLE) {
-            boolean result = false;
-            if (event.getKeyCode() == KeyEvent.KEYCODE_UNKNOWN && event.getCharacters() != null) {
-                String characters = event.getCharacters();
-                for (int i = 0; i < characters.length(); ++i) {
-                    char c = characters.charAt(i);
-                    int codepoint = c;
-                    if (codepoint >= Character.MIN_SURROGATE
-                            && codepoint < (Character.MAX_SURROGATE + 1)) {
-                        i++;
-                        char c2 = characters.charAt(i);
-                        codepoint = Character.toCodePoint(c, c2);
-                    }
-                    result |= nativeKeyEvent(mNativeMojoViewport, true, 0, codepoint);
-                    result |= nativeKeyEvent(mNativeMojoViewport, false, 0, codepoint);
-                }
-            } else {
-                for (int i = 0; i < event.getRepeatCount(); ++i) {
-                    result |= nativeKeyEvent(
-                            mNativeMojoViewport, true, event.getKeyCode(), event.getUnicodeChar());
-                    result |= nativeKeyEvent(
-                            mNativeMojoViewport, false, event.getKeyCode(), event.getUnicodeChar());
-                }
-            }
-            return result;
-        } else {
-            return nativeKeyEvent(mNativeMojoViewport, event.getAction() == KeyEvent.ACTION_DOWN,
-                    event.getKeyCode(), event.getUnicodeChar());
-        }
-    }
-
-    private static native void nativeDestroy(long nativePlatformViewportAndroid);
-
-    private static native void nativeSurfaceCreated(
-            long nativePlatformViewportAndroid, Surface surface, float devicePixelRatio);
-
-    private static native void nativeSurfaceDestroyed(
-            long nativePlatformViewportAndroid);
-
-    private static native void nativeSurfaceSetSize(
-            long nativePlatformViewportAndroid, int width, int height, float density);
-
-    private static native boolean nativeTouchEvent(long nativePlatformViewportAndroid, long timeMs,
-            int maskedAction, int pointerId, float x, float y, float pressure, float touchMajor,
-            float touchMinor, float orientation, float hWheel, float vWheel);
-
-    private static native boolean nativeKeyEvent(
-            long nativePlatformViewportAndroid, boolean pressed, int keyCode, int unicodeCharacter);
-}