src/content/shell/android/java/src/org/chromium/content_shell/ShellManager.java

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 package org.chromium.content_shell;
   6
   7 import android.content.Context;
   8 import android.util.AttributeSet;
   9 import android.view.LayoutInflater;
  10 import android.widget.FrameLayout;
  11
  12 import org.chromium.base.CalledByNative;
  13 import org.chromium.base.JNINamespace;
  14 import org.chromium.content.browser.ContentView;
  15 import org.chromium.content.browser.ContentViewRenderView;
  16 import org.chromium.ui.WindowAndroid;
  17
  18 /**
  19  * Container and generator of ShellViews.
  20  */
  21 @JNINamespace("content")
  22 public class ShellManager extends FrameLayout {
  23
  24     public static final String DEFAULT_SHELL_URL = "http://www.google.com";
  25     private static boolean sStartup = true;
  26     private WindowAndroid mWindow;
  27     private Shell mActiveShell;
  28
  29     private String mStartupUrl = DEFAULT_SHELL_URL;
  30
  31     // The target for all content rendering.
  32     private ContentViewRenderView mContentViewRenderView;
  33
  34     /**
  35      * Constructor for inflating via XML.
  36      */
  37     public ShellManager(Context context, AttributeSet attrs) {
  38         super(context, attrs);
  39         nativeInit(this);
  40         mContentViewRenderView = new ContentViewRenderView(context) {
  41             @Override
  42             protected void onReadyToRender() {
  43                 if (sStartup) {
  44                     mActiveShell.loadUrl(mStartupUrl);
  45                     sStartup = false;
  46                 }
  47             }
  48         };
  49     }
  50
  51     /**
  52      * @param window The window used to generate all shells.
  53      */
  54     public void setWindow(WindowAndroid window) {
  55         mWindow = window;
  56     }
  57
  58     /**
  59      * @return The window used to generate all shells.
  60      */
  61     public WindowAndroid getWindow() {
  62         return mWindow;
  63     }
  64
  65     /**
  66      * Sets the startup URL for new shell windows.
  67      */
  68     public void setStartupUrl(String url) {
  69         mStartupUrl = url;
  70     }
  71
  72     /**
  73      * @return The currently visible shell view or null if one is not showing.
  74      */
  75     public Shell getActiveShell() {
  76         return mActiveShell;
  77     }
  78
  79     /**
  80      * Creates a new shell pointing to the specified URL.
  81      * @param url The URL the shell should load upon creation.
  82      */
  83     public void launchShell(String url) {
  84         nativeLaunchShell(url);
  85     }
  86
  87     @SuppressWarnings("unused")
  88     @CalledByNative
  89     private Object createShell() {
  90         LayoutInflater inflater =
  91                 (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  92         Shell shellView = (Shell) inflater.inflate(R.layout.shell_view, null);
  93         shellView.setWindow(mWindow);
  94
  95         if (mActiveShell != null) closeShell(mActiveShell);
  96
  97         shellView.setContentViewRenderView(mContentViewRenderView);
  98         addView(shellView, new FrameLayout.LayoutParams(
  99                 FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));
 100         mActiveShell = shellView;
 101         ContentView contentView = mActiveShell.getContentView();
 102         if (contentView != null) {
 103             mContentViewRenderView.setCurrentContentView(contentView);
 104             contentView.onShow();
 105         }
 106
 107         return shellView;
 108     }
 109
 110     @SuppressWarnings("unused")
 111     @CalledByNative
 112     private void closeShell(Shell shellView) {
 113         if (shellView == mActiveShell) mActiveShell = null;
 114         ContentView contentView = shellView.getContentView();
 115         if (contentView != null) contentView.onHide();
 116         shellView.setContentViewRenderView(null);
 117         shellView.setWindow(null);
 118         removeView(shellView);
 119     }
 120
 121     private static native void nativeInit(Object shellManagerInstance);
 122     private static native void nativeLaunchShell(String url);
 123 }