/* * Copyright (C) 2013 Google Inc. * Licensed to The Android Open Source Project. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.mail.ui; import android.app.Fragment; import android.app.FragmentManager; import android.content.res.Resources; import android.graphics.Rect; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.webkit.WebSettings; import com.android.mail.FormattedDateBuilder; import com.android.mail.R; import com.android.mail.browse.ConversationMessage; import com.android.mail.browse.ConversationViewAdapter; import com.android.mail.browse.ConversationViewAdapter.MessageHeaderItem; import com.android.mail.browse.ConversationViewHeader; import com.android.mail.browse.InlineAttachmentViewIntentBuilderCreator; import com.android.mail.browse.InlineAttachmentViewIntentBuilderCreatorHolder; import com.android.mail.browse.MessageFooterView; import com.android.mail.browse.MessageHeaderView; import com.android.mail.browse.MessageScrollView; import com.android.mail.browse.MessageWebView; import com.android.mail.browse.ScrollNotifier.ScrollListener; import com.android.mail.browse.WebViewContextMenu; import com.android.mail.print.PrintUtils; import com.android.mail.providers.Conversation; import com.android.mail.providers.Message; import com.android.mail.utils.ConversationViewUtils; /** * Controller to do most of the heavy lifting for * {@link SecureConversationViewFragment} and * {@link com.android.mail.browse.EmlMessageViewFragment}. Currently that work * is pretty much the rendering logic. */ public class SecureConversationViewController implements MessageHeaderView.MessageHeaderViewCallbacks, ScrollListener, MessageFooterView.MessageFooterCallbacks { private static final String BEGIN_HTML = "

"; private static final String END_HTML = "

"; private final SecureConversationViewControllerCallbacks mCallbacks; private MessageWebView mWebView; private ConversationViewHeader mConversationHeaderView; private MessageHeaderView mMessageHeaderView; private MessageHeaderView mSnapHeaderView; private MessageFooterView mMessageFooterView; private ConversationMessage mMessage; private MessageScrollView mScrollView; private ConversationViewProgressController mProgressController; private FormattedDateBuilder mDateBuilder; private int mSideMarginInWebPx; public SecureConversationViewController(SecureConversationViewControllerCallbacks callbacks) { mCallbacks = callbacks; } public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.secure_conversation_view, container, false); mScrollView = (MessageScrollView) rootView.findViewById(R.id.scroll_view); mConversationHeaderView = (ConversationViewHeader) rootView.findViewById(R.id.conv_header); mMessageHeaderView = (MessageHeaderView) rootView.findViewById(R.id.message_header); mSnapHeaderView = (MessageHeaderView) rootView.findViewById(R.id.snap_header); mMessageFooterView = (MessageFooterView) rootView.findViewById(R.id.message_footer); mScrollView.addScrollListener(this); // Add color backgrounds to the header and footer. // Otherwise the backgrounds are grey. They can't // be set in xml because that would add more overdraw // in ConversationViewFragment. final int color = rootView.getResources().getColor( R.color.message_header_background_color); mMessageHeaderView.setBackgroundColor(color); mSnapHeaderView.setBackgroundColor(color); mMessageFooterView.setBackgroundColor(color); mProgressController = new ConversationViewProgressController( mCallbacks.getFragment(), mCallbacks.getHandler()); mProgressController.instantiateProgressIndicators(rootView); mWebView = (MessageWebView) rootView.findViewById(R.id.webview); mWebView.setOverScrollMode(View.OVER_SCROLL_NEVER); mWebView.setWebViewClient(mCallbacks.getWebViewClient()); final InlineAttachmentViewIntentBuilderCreator creator = InlineAttachmentViewIntentBuilderCreatorHolder. getInlineAttachmentViewIntentCreator(); mWebView.setOnCreateContextMenuListener(new WebViewContextMenu( mCallbacks.getFragment().getActivity(), creator.createInlineAttachmentViewIntentBuilder(null, -1))); mWebView.setFocusable(false); final WebSettings settings = mWebView.getSettings(); settings.setJavaScriptEnabled(false); settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NORMAL); ConversationViewUtils.setTextZoom(mCallbacks.getFragment().getResources(), settings); settings.setSupportZoom(true); settings.setBuiltInZoomControls(true); settings.setDisplayZoomControls(false); mScrollView.setInnerScrollableView(mWebView); return rootView; } public void onActivityCreated(Bundle savedInstanceState) { mCallbacks.setupConversationHeaderView(mConversationHeaderView); final Fragment fragment = mCallbacks.getFragment(); mDateBuilder = new FormattedDateBuilder(fragment.getActivity()); mMessageHeaderView.initialize( mCallbacks.getConversationAccountController(), mCallbacks.getAddressCache()); mMessageHeaderView.setContactInfoSource(mCallbacks.getContactInfoSource()); mMessageHeaderView.setCallbacks(this); mMessageHeaderView.setExpandable(false); mMessageHeaderView.setViewOnlyMode(mCallbacks.isViewOnlyMode()); mSnapHeaderView.setSnappy(); mSnapHeaderView.initialize( mCallbacks.getConversationAccountController(), mCallbacks.getAddressCache()); mSnapHeaderView.setContactInfoSource(mCallbacks.getContactInfoSource()); mSnapHeaderView.setCallbacks(this); mSnapHeaderView.setExpandable(false); mSnapHeaderView.setViewOnlyMode(mCallbacks.isViewOnlyMode()); mCallbacks.setupMessageHeaderVeiledMatcher(mMessageHeaderView); mCallbacks.setupMessageHeaderVeiledMatcher(mSnapHeaderView); mMessageFooterView.initialize(fragment.getLoaderManager(), fragment.getFragmentManager(), mCallbacks.getConversationAccountController(), this); mCallbacks.startMessageLoader(); mProgressController.showLoadingStatus(mCallbacks.isViewVisibleToUser()); final Resources r = mCallbacks.getFragment().getResources(); mSideMarginInWebPx = (int) (r.getDimensionPixelOffset( R.dimen.conversation_message_content_margin_side) / r.getDisplayMetrics().density); } @Override public void onNotifierScroll(final int y) { // We need to decide whether or not to display the snap header. // Get the location of the moveable message header inside the scroll view. Rect rect = new Rect(); mScrollView.offsetDescendantRectToMyCoords(mMessageHeaderView, rect); // If we have scrolled further than the distance from the top of the scrollView to the top // of the message header, then the message header is at least partially ofscreen. As soon // as the message header goes partially offscreen we need to display the snap header. // TODO - re-enable when dogfooders howl // if (y > rect.top) { // mSnapHeaderView.setVisibility(View.VISIBLE); // } else { mSnapHeaderView.setVisibility(View.GONE); // } } /** * Populate the adapter with overlay views (message headers, super-collapsed * blocks, a conversation header), and return an HTML document with spacer * divs inserted for all overlays. */ public void renderMessage(ConversationMessage message) { mMessage = message; final boolean alwaysShowImages = mCallbacks.shouldAlwaysShowImages(); mWebView.getSettings().setBlockNetworkImage( !alwaysShowImages && !mMessage.alwaysShowImages); // Add formatting to message body // At this point, only adds margins. StringBuilder dataBuilder = new StringBuilder( String.format(BEGIN_HTML, mSideMarginInWebPx)); dataBuilder.append(mMessage.getBodyAsHtml()); dataBuilder.append(END_HTML); mWebView.loadDataWithBaseURL(mCallbacks.getBaseUri(), dataBuilder.toString(), "text/html", "utf-8", null); final MessageHeaderItem item = ConversationViewAdapter.newMessageHeaderItem( null, mDateBuilder, mMessage, true, mMessage.alwaysShowImages); // Clear out the old info from the header before (re)binding mMessageHeaderView.unbind(); mMessageHeaderView.bind(item, false); mSnapHeaderView.unbind(); mSnapHeaderView.bind(item, false); if (mMessage.hasAttachments) { mMessageFooterView.setVisibility(View.VISIBLE); mMessageFooterView.bind(item, false); } } public ConversationMessage getMessage() { return mMessage; } public ConversationViewHeader getConversationHeaderView() { return mConversationHeaderView; } public void dismissLoadingStatus() { mProgressController.dismissLoadingStatus(); } public void setSubject(String subject) { mConversationHeaderView.setSubject(subject); } public void printMessage() { final Conversation conversation = mMessage.getConversation(); PrintUtils.printMessage(mCallbacks.getFragment().getActivity(), mMessage, conversation != null ? conversation.subject : mMessage.subject, mCallbacks.getAddressCache(), mCallbacks.getBaseUri(), false /* useJavascript */); } // Start MessageHeaderViewCallbacks implementations @Override public void setMessageSpacerHeight(MessageHeaderItem item, int newSpacerHeight) { // Do nothing. } @Override public void setMessageExpanded(MessageHeaderItem item, int newSpacerHeight) { // Do nothing. } @Override public void setMessageDetailsExpanded(MessageHeaderItem i, boolean expanded, int heightBefore) { // Do nothing. } @Override public void showExternalResources(final Message msg) { mWebView.getSettings().setBlockNetworkImage(false); } @Override public void showExternalResources(final String rawSenderAddress) { mWebView.getSettings().setBlockNetworkImage(false); } @Override public boolean supportsMessageTransforms() { return false; } @Override public String getMessageTransforms(final Message msg) { return null; } @Override public boolean isSecure() { return true; } @Override public FragmentManager getFragmentManager() { return mCallbacks.getFragment().getFragmentManager(); } // End MessageHeaderViewCallbacks implementations }