core/java/android/webkit/PluginFullScreenHolder.java

/*
 * Copyright 2009, The Android Open Source Project
 *
 * 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 copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package android.webkit;

import android.app.Dialog;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;

class PluginFullScreenHolder extends Dialog {

    private final WebView mWebView;
    private final int mNpp;
    private View mContentView;

    PluginFullScreenHolder(WebView webView, int npp) {
        super(webView.getContext(), android.R.style.Theme_NoTitleBar_Fullscreen);
        mWebView = webView;
        mNpp = npp;
    }

    @Override
    public void setContentView(View contentView) {
        // as we are sharing the View between full screen and
        // embedded mode, we have to remove the
        // AbsoluteLayout.LayoutParams set by embedded mode to
        // ViewGroup.LayoutParams before adding it to the dialog
        contentView.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));
        // fixed size is only used either during pinch zoom or surface is too
        // big. Make sure it is not fixed size before setting it to the full
        // screen content view. The SurfaceView will be set to the correct mode
        // by the ViewManager when it is re-attached to the WebView.
        if (contentView instanceof SurfaceView) {
            final SurfaceView sView = (SurfaceView) contentView;
            if (sView.isFixedSize()) {
                sView.getHolder().setSizeFromLayout();
            }
        }
        super.setContentView(contentView);
        mContentView = contentView;
    }

    @Override
    public void onBackPressed() {
        mWebView.mPrivateHandler.obtainMessage(WebView.HIDE_FULLSCREEN)
                .sendToTarget();
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (event.isSystem()) {
            return super.onKeyDown(keyCode, event);
        }
        mWebView.onKeyDown(keyCode, event);
        // always return true as we are the handler
        return true;
    }

    @Override
    public boolean onKeyUp(int keyCode, KeyEvent event) {
        if (event.isSystem()) {
            return super.onKeyUp(keyCode, event);
        }
        mWebView.onKeyUp(keyCode, event);
        // always return true as we are the handler
        return true;
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        // always return true as we don't want the event to propagate any further
        return true;
    }

    @Override
    public boolean onTrackballEvent(MotionEvent event) {
        mWebView.onTrackballEvent(event);
        // always return true as we are the handler
        return true;
    }

    @Override
    protected void onStop() {
        super.onStop();
        // manually remove the contentView's parent since the dialog does not
        if (mContentView != null && mContentView.getParent() != null) {
            ViewGroup vg = (ViewGroup) mContentView.getParent();
            vg.removeView(mContentView);
        }
        mWebView.getWebViewCore().sendMessage(
                WebViewCore.EventHub.HIDE_FULLSCREEN, mNpp, 0);
    }

}