| 1 | // Copyright 2013 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.android_webview; |
| 6 | |
| 7 | import android.graphics.Rect; |
| 8 | import android.os.Handler; |
| 9 | import android.os.Looper; |
| 10 | import android.os.Message; |
| 11 | import android.util.Log; |
| 12 | import android.view.KeyEvent; |
| 13 | import android.webkit.ConsoleMessage; |
| 14 | import android.webkit.ValueCallback; |
| 15 | |
| 16 | import org.chromium.content.browser.ContentViewCore; |
| 17 | |
| 18 | /** |
| 19 | * Adapts the AwWebContentsDelegate interface to the AwContentsClient interface. |
| 20 | * This class also serves a secondary function of routing certain callbacks from the content layer |
| 21 | * to specific listener interfaces. |
| 22 | */ |
| 23 | class AwWebContentsDelegateAdapter extends AwWebContentsDelegate { |
| 24 | private static final String TAG = "AwWebContentsDelegateAdapter"; |
| 25 | |
| 26 | /** |
| 27 | * Listener definition for a callback to be invoked when the preferred size of the page |
| 28 | * contents changes. |
| 29 | */ |
| 30 | public interface PreferredSizeChangedListener { |
| 31 | /** |
| 32 | * Called when the preferred size of the page contents changes. |
| 33 | * @see AwWebContentsDelegate#updatePreferredSize |
| 34 | */ |
| 35 | void updatePreferredSize(int width, int height); |
| 36 | } |
| 37 | |
| 38 | final AwContentsClient mContentsClient; |
| 39 | final PreferredSizeChangedListener mPreferredSizeChangedListener; |
| 40 | |
| 41 | public AwWebContentsDelegateAdapter(AwContentsClient contentsClient, |
| 42 | PreferredSizeChangedListener preferredSizeChangedListener) { |
| 43 | mContentsClient = contentsClient; |
| 44 | mPreferredSizeChangedListener = preferredSizeChangedListener; |
| 45 | } |
| 46 | |
| 47 | @Override |
| 48 | public void onLoadProgressChanged(int progress) { |
| 49 | mContentsClient.onProgressChanged(progress); |
| 50 | } |
| 51 | |
| 52 | @Override |
| 53 | public void handleKeyboardEvent(KeyEvent event) { |
| 54 | mContentsClient.onUnhandledKeyEvent(event); |
| 55 | } |
| 56 | |
| 57 | @Override |
| 58 | public boolean addMessageToConsole(int level, String message, int lineNumber, |
| 59 | String sourceId) { |
| 60 | ConsoleMessage.MessageLevel messageLevel = ConsoleMessage.MessageLevel.DEBUG; |
| 61 | switch(level) { |
| 62 | case LOG_LEVEL_TIP: |
| 63 | messageLevel = ConsoleMessage.MessageLevel.TIP; |
| 64 | break; |
| 65 | case LOG_LEVEL_LOG: |
| 66 | messageLevel = ConsoleMessage.MessageLevel.LOG; |
| 67 | break; |
| 68 | case LOG_LEVEL_WARNING: |
| 69 | messageLevel = ConsoleMessage.MessageLevel.WARNING; |
| 70 | break; |
| 71 | case LOG_LEVEL_ERROR: |
| 72 | messageLevel = ConsoleMessage.MessageLevel.ERROR; |
| 73 | break; |
| 74 | default: |
| 75 | Log.w(TAG, "Unknown message level, defaulting to DEBUG"); |
| 76 | break; |
| 77 | } |
| 78 | |
| 79 | return mContentsClient.onConsoleMessage( |
| 80 | new ConsoleMessage(message, sourceId, lineNumber, messageLevel)); |
| 81 | } |
| 82 | |
| 83 | @Override |
| 84 | public void onUpdateUrl(String url) { |
| 85 | // TODO: implement |
| 86 | } |
| 87 | |
| 88 | @Override |
| 89 | public void openNewTab(String url, String extraHeaders, byte[] postData, int disposition) { |
| 90 | // This is only called in chrome layers. |
| 91 | assert false; |
| 92 | } |
| 93 | |
| 94 | @Override |
| 95 | public boolean addNewContents(int nativeSourceWebContents, int nativeWebContents, |
| 96 | int disposition, Rect initialPosition, boolean userGesture) { |
| 97 | // This is overridden native side; see the other addNewContents overload. |
| 98 | throw new RuntimeException("Impossible"); |
| 99 | } |
| 100 | |
| 101 | @Override |
| 102 | public void closeContents() { |
| 103 | mContentsClient.onCloseWindow(); |
| 104 | } |
| 105 | |
| 106 | @Override |
| 107 | public void showRepostFormWarningDialog(final ContentViewCore contentViewCore) { |
| 108 | // TODO(mkosiba) We should be using something akin to the JsResultReceiver as the |
| 109 | // callback parameter (instead of ContentViewCore) and implement a way of converting |
| 110 | // that to a pair of messages. |
| 111 | final int MSG_CONTINUE_PENDING_RELOAD = 1; |
| 112 | final int MSG_CANCEL_PENDING_RELOAD = 2; |
| 113 | |
| 114 | // TODO(sgurun) Remember the URL to cancel the reload behavior |
| 115 | // if it is different than the most recent NavigationController entry. |
| 116 | final Handler handler = new Handler(Looper.getMainLooper()) { |
| 117 | @Override |
| 118 | public void handleMessage(Message msg) { |
| 119 | switch(msg.what) { |
| 120 | case MSG_CONTINUE_PENDING_RELOAD: { |
| 121 | contentViewCore.continuePendingReload(); |
| 122 | break; |
| 123 | } |
| 124 | case MSG_CANCEL_PENDING_RELOAD: { |
| 125 | contentViewCore.cancelPendingReload(); |
| 126 | break; |
| 127 | } |
| 128 | default: |
| 129 | throw new IllegalStateException( |
| 130 | "WebContentsDelegateAdapter: unhandled message " + msg.what); |
| 131 | } |
| 132 | } |
| 133 | }; |
| 134 | |
| 135 | Message resend = handler.obtainMessage(MSG_CONTINUE_PENDING_RELOAD); |
| 136 | Message dontResend = handler.obtainMessage(MSG_CANCEL_PENDING_RELOAD); |
| 137 | mContentsClient.onFormResubmission(dontResend, resend); |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public void runFileChooser(final int processId, final int renderId, final int mode_flags, |
| 142 | String acceptTypes, String title, String defaultFilename, boolean capture) { |
| 143 | AwContentsClient.FileChooserParams params = new AwContentsClient.FileChooserParams(); |
| 144 | params.mode = mode_flags; |
| 145 | params.acceptTypes = acceptTypes; |
| 146 | params.title = title; |
| 147 | params.defaultFilename = defaultFilename; |
| 148 | params.capture = capture; |
| 149 | |
| 150 | mContentsClient.showFileChooser(new ValueCallback<String[]>() { |
| 151 | boolean completed = false; |
| 152 | @Override |
| 153 | public void onReceiveValue(String[] results) { |
| 154 | if (completed) { |
| 155 | throw new IllegalStateException("Duplicate showFileChooser result"); |
| 156 | } |
| 157 | completed = true; |
| 158 | nativeFilesSelectedInChooser(processId, renderId, mode_flags, results); |
| 159 | } |
| 160 | }, params); |
| 161 | } |
| 162 | |
| 163 | @Override |
| 164 | public boolean addNewContents(boolean isDialog, boolean isUserGesture) { |
| 165 | return mContentsClient.onCreateWindow(isDialog, isUserGesture); |
| 166 | } |
| 167 | |
| 168 | @Override |
| 169 | public void activateContents() { |
| 170 | mContentsClient.onRequestFocus(); |
| 171 | } |
| 172 | |
| 173 | @Override |
| 174 | public void updatePreferredSize(int width, int height) { |
| 175 | mPreferredSizeChangedListener.updatePreferredSize(width, height); |
| 176 | } |
| 177 | } |