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Play <video> tags from the Webview in a Fullscreen video player.

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Code from the Froyo Android Browser was adapted to support <video> elements in Cordova. The WebView creates a "CustomView" (a video player) that is displayed fullscreen.
It uses API level 7, work has to be done to support lower version.

Tested on Androdi 2.2: works
Tested on Android 4.1: doesn't work. It seems videos are handled differently (without the use of "Custom views"). To make video playing work on Android 4, add the android:hardwareAccelerated="true" attribute to the main activity of the AndroidManifest.
This commit is contained in:
Steren Giannini 2012-08-14 18:13:35 +02:00
parent 946e345a3f
commit 06aafc96c9
2 changed files with 141 additions and 18 deletions
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56
framework/src/org/apache/cordova/CordovaChromeClient.java
View File

@ -27,7 +27,14 @@ import org.json.JSONException;
import android.app.AlertDialog;
//import android.content.Context;
import android.content.DialogInterface;
import android.util.Log;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.WindowManager;
//import android.view.View;
import android.webkit.ConsoleMessage;
import android.webkit.JsPromptResult;
@ -37,6 +44,11 @@ import android.webkit.WebStorage;
import android.webkit.WebView;
import android.webkit.GeolocationPermissions.Callback;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.Toast;
/**
* This class is the WebChromeClient that implements callbacks for our web view.
@ -48,6 +60,9 @@ public class CordovaChromeClient extends WebChromeClient {
private CordovaInterface cordova;
private CordovaWebView appView;
// the video progress view
private View mVideoProgressView;
/**
* Constructor.
*
@ -329,4 +344,45 @@ public class CordovaChromeClient extends WebChromeClient {
super.onGeolocationPermissionsShowPrompt(origin, callback);
callback.invoke(origin, true, false);
}
// API level 7 is required for this, see if we could lower this using something else
@Override
public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
this.appView.showCustomView(view, callback);
}
@Override
public void onHideCustomView() {
this.appView.hideCustomView();
}
@Override
/**
* Ask the host application for a custom progress view to show while
* a <video> is loading.
* @return View The progress view.
*/
public View getVideoLoadingProgressView() {
if (mVideoProgressView == null) {
// Create a new Loading view programmatically.
// create the linear layout
LinearLayout layout = new LinearLayout(this.appView.getContext());
layout.setOrientation(LinearLayout.VERTICAL);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
layout.setLayoutParams(layoutParams);
// the proress bar
ProgressBar bar = new ProgressBar(this.appView.getContext());
LinearLayout.LayoutParams barLayoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
barLayoutParams.gravity = Gravity.CENTER;
bar.setLayoutParams(barLayoutParams);
layout.addView(bar);
mVideoProgressView = layout;
}
return mVideoProgressView;
}
}

103
framework/src/org/apache/cordova/CordovaWebView.java
View File

@ -39,11 +39,16 @@ import android.net.Uri;
import android.os.Bundle;
import android.util.AttributeSet;
import android.util.Log;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebSettings.LayoutAlgorithm;
import android.widget.FrameLayout;
public class CordovaWebView extends WebView {
@ -84,6 +89,16 @@ public class CordovaWebView extends WebView {
private boolean handleButton = false;
/** custom view created by the browser (a video player for example) */
private View mCustomView;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
static final FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER =
new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT,
Gravity.CENTER);
/**
* Constructor.
*
@ -208,8 +223,9 @@ public class CordovaWebView extends WebView {
//Jellybean rightfully tried to lock this down. Too bad they didn't give us a whitelist
//while we do this
if(android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1)
settings.setAllowUniversalAccessFromFileURLs(true);
// TODO .setAllowUniversalAccessFromFileURLs(true); is abstract and cannot be called
//if(android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1)
// settings.setAllowUniversalAccessFromFileURLs(true);
// Enable database
settings.setDatabaseEnabled(true);
String databasePath = this.cordova.getActivity().getApplicationContext().getDir("database", Context.MODE_PRIVATE).getPath();
@ -733,22 +749,28 @@ public class CordovaWebView extends WebView {
{
// If back key
if (keyCode == KeyEvent.KEYCODE_BACK) {
// If back key is bound, then send event to JavaScript
if (this.bound) {
this.loadUrl("javascript:cordova.fireDocumentEvent('backbutton');");
return true;
} else {
// If not bound
// Go to previous page in webview if it is possible to go back
if (this.backHistory()) {
return true;
}
// If not, then invoke default behaviour
else {
//this.activityState = ACTIVITY_EXITING;
return false;
}
}
// A custom view is currently displayed (e.g. playing a video)
if(mCustomView != null) {
this.hideCustomView();
} else {
// The webview is currently displayed
// If back key is bound, then send event to JavaScript
if (this.bound) {
this.loadUrl("javascript:cordova.fireDocumentEvent('backbutton');");
return true;
} else {
// If not bound
// Go to previous page in webview if it is possible to go back
if (this.backHistory()) {
return true;
}
// If not, then invoke default behaviour
else {
//this.activityState = ACTIVITY_EXITING;
return false;
}
}
}
}
// Legacy
else if (keyCode == KeyEvent.KEYCODE_MENU) {
@ -871,4 +893,49 @@ public class CordovaWebView extends WebView {
public boolean hadKeyEvent() {
return handleButton;
}
public void showCustomView(View view, WebChromeClient.CustomViewCallback callback) {
// This code is adapted from the original Android Browser code, licensed under the Apache License, Version 2.0
Log.d(TAG, "showing Custom View");
// if a view already exists then immediately terminate the new one
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
// Store the view and its callback for later (to kill it properly)
mCustomView = view;
mCustomViewCallback = callback;
// Add the custom view to its container.
ViewGroup parent = (ViewGroup) this.getParent();
parent.addView(view, COVER_SCREEN_GRAVITY_CENTER);
// Hide the content view.
this.setVisibility(View.GONE);
// Finally show the custom view container.
parent.setVisibility(View.VISIBLE);
parent.bringToFront();
}
public void hideCustomView() {
// This code is adapted from the original Android Browser code, licensed under the Apache License, Version 2.0
Log.d(TAG, "Hidding Custom View");
if (mCustomView == null) return;
// Hide the custom view.
mCustomView.setVisibility(View.GONE);
// Remove the custom view from its container.
ViewGroup parent = (ViewGroup) this.getParent();
parent.removeView(mCustomView);
mCustomView = null;
mCustomViewCallback.onCustomViewHidden();
// Show the content view.
this.setVisibility(View.VISIBLE);
}
}