| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package org.chromium.chrome.browser.tab; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.Color; |
| import android.os.Build; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.provider.Browser; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.view.ContextThemeWrapper; |
| import android.view.View; |
| import android.view.View.OnClickListener; |
| import android.view.ViewGroup; |
| import android.view.ViewGroup.LayoutParams; |
| import android.widget.FrameLayout; |
| |
| import org.chromium.base.ApiCompatibilityUtils; |
| import org.chromium.base.ApplicationStatus; |
| import org.chromium.base.ObserverList; |
| import org.chromium.base.ObserverList.RewindableIterator; |
| import org.chromium.base.TraceEvent; |
| import org.chromium.base.VisibleForTesting; |
| import org.chromium.base.annotations.CalledByNative; |
| import org.chromium.base.metrics.RecordHistogram; |
| import org.chromium.base.metrics.RecordUserAction; |
| import org.chromium.chrome.R; |
| import org.chromium.chrome.browser.ChromeActivity; |
| import org.chromium.chrome.browser.ChromeApplication; |
| import org.chromium.chrome.browser.FrozenNativePage; |
| import org.chromium.chrome.browser.IntentHandler.TabOpenType; |
| import org.chromium.chrome.browser.NativePage; |
| import org.chromium.chrome.browser.SwipeRefreshHandler; |
| import org.chromium.chrome.browser.TabState; |
| import org.chromium.chrome.browser.TabState.WebContentsState; |
| import org.chromium.chrome.browser.UrlConstants; |
| import org.chromium.chrome.browser.WebContentsFactory; |
| import org.chromium.chrome.browser.banners.AppBannerManager; |
| import org.chromium.chrome.browser.bookmarks.BookmarkUtils; |
| import org.chromium.chrome.browser.compositor.layouts.content.TabContentManager; |
| import org.chromium.chrome.browser.contextmenu.ContextMenuPopulator; |
| import org.chromium.chrome.browser.contextualsearch.ContextualSearchTabHelper; |
| import org.chromium.chrome.browser.crash.MinidumpDirectoryObserver; |
| import org.chromium.chrome.browser.crash.MinidumpUploadService; |
| import org.chromium.chrome.browser.customtabs.CustomTabActivity; |
| import org.chromium.chrome.browser.download.ChromeDownloadDelegate; |
| import org.chromium.chrome.browser.fullscreen.FullscreenManager; |
| import org.chromium.chrome.browser.help.HelpAndFeedback; |
| import org.chromium.chrome.browser.infobar.InfoBarContainer; |
| import org.chromium.chrome.browser.media.ui.MediaSessionTabHelper; |
| import org.chromium.chrome.browser.ntp.NativePageAssassin; |
| import org.chromium.chrome.browser.ntp.NativePageFactory; |
| import org.chromium.chrome.browser.omnibox.geo.GeolocationHeader; |
| import org.chromium.chrome.browser.policy.PolicyAuditor; |
| import org.chromium.chrome.browser.printing.TabPrinter; |
| import org.chromium.chrome.browser.profiles.Profile; |
| import org.chromium.chrome.browser.rlz.RevenueStats; |
| import org.chromium.chrome.browser.search_engines.TemplateUrlService; |
| import org.chromium.chrome.browser.snackbar.LofiBarController; |
| import org.chromium.chrome.browser.snackbar.SnackbarManager; |
| import org.chromium.chrome.browser.ssl.SecurityStateModel; |
| import org.chromium.chrome.browser.tab.TabUma.TabCreationState; |
| import org.chromium.chrome.browser.tabmodel.SingleTabModelSelector; |
| import org.chromium.chrome.browser.tabmodel.TabModel; |
| import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType; |
| import org.chromium.chrome.browser.tabmodel.TabModel.TabSelectionType; |
| import org.chromium.chrome.browser.tabmodel.TabModelImpl; |
| import org.chromium.chrome.browser.tabmodel.TabModelSelector; |
| import org.chromium.components.dom_distiller.core.DomDistillerUrlUtils; |
| import org.chromium.components.navigation_interception.InterceptNavigationDelegate; |
| import org.chromium.components.security_state.ConnectionSecurityLevel; |
| import org.chromium.components.variations.VariationsAssociatedData; |
| import org.chromium.content.browser.ActivityContentVideoViewEmbedder; |
| import org.chromium.content.browser.ChildProcessLauncher; |
| import org.chromium.content.browser.ContentVideoViewEmbedder; |
| import org.chromium.content.browser.ContentView; |
| import org.chromium.content.browser.ContentViewClient; |
| import org.chromium.content.browser.ContentViewCore; |
| import org.chromium.content.browser.crypto.CipherFactory; |
| import org.chromium.content_public.browser.GestureStateListener; |
| import org.chromium.content_public.browser.LoadUrlParams; |
| import org.chromium.content_public.browser.WebContents; |
| import org.chromium.content_public.common.Referrer; |
| import org.chromium.content_public.common.TopControlsState; |
| import org.chromium.printing.PrintManagerDelegateImpl; |
| import org.chromium.printing.PrintingController; |
| import org.chromium.printing.PrintingControllerImpl; |
| import org.chromium.ui.WindowOpenDisposition; |
| import org.chromium.ui.base.LocalizationUtils; |
| import org.chromium.ui.base.PageTransition; |
| import org.chromium.ui.base.WindowAndroid; |
| |
| import java.lang.ref.WeakReference; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * The basic Java representation of a tab. Contains and manages a {@link ContentView}. |
| * <p> |
| * This class is intended to be extended either on Java or both Java and C++, with ownership managed |
| * by this base class. |
| * <p> |
| * Extending just Java: |
| * - Just extend the class normally. Do not override initializeNative(). |
| * Extending Java and C++: |
| * - Because of the inner-workings of JNI, the subclass is responsible for constructing the native |
| * subclass, which in turn constructs TabAndroid (the native counterpart to Tab), which in |
| * turn sets the native pointer for Tab. For destruction, subclasses in Java must clear |
| * their own native pointer reference, but Tab#destroy() will handle deleting the native |
| * object. |
| */ |
| public final class Tab implements ViewGroup.OnHierarchyChangeListener, |
| View.OnSystemUiVisibilityChangeListener { |
| public static final int INVALID_TAB_ID = -1; |
| |
| /** Return value from {@link #getBookmarkId()} if this tab is not bookmarked. */ |
| public static final long INVALID_BOOKMARK_ID = -1; |
| |
| /** The maximum amount of time to wait for a page to load before entering fullscreen. -1 means |
| * wait until the page finishes loading. */ |
| private static final long MAX_FULLSCREEN_LOAD_DELAY_MS = 3000; |
| |
| protected static final int MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD = 1; |
| |
| private static final long INVALID_TIMESTAMP = -1; |
| |
| /** |
| * The required page load percentage for the page to be considered ready assuming the |
| * TextureView is also ready. |
| */ |
| private static final int CONSIDERED_READY_LOAD_PERCENTAGE = 100; |
| |
| /** Used for logging. */ |
| private static final String TAG = "Tab"; |
| |
| private long mNativeTabAndroid; |
| |
| /** Unique id of this tab (within its container). */ |
| private final int mId; |
| |
| /** Whether or not this tab is an incognito tab. */ |
| private final boolean mIncognito; |
| |
| /** |
| * An Application {@link Context}. Unlike {@link #mActivity}, this is the only one that is |
| * publicly exposed to help prevent leaking the {@link Activity}. |
| */ |
| private final Context mThemedApplicationContext; |
| |
| /** Gives {@link Tab} a way to interact with the Android window. */ |
| private WindowAndroid mWindowAndroid; |
| |
| /** Whether or not this {@link Tab} is initialized and should be interacted with. */ |
| private boolean mIsInitialized; |
| |
| /** The current native page (e.g. chrome-native://newtab), or {@code null} if there is none. */ |
| private NativePage mNativePage; |
| |
| /** InfoBar container to show InfoBars for this tab. */ |
| private InfoBarContainer mInfoBarContainer; |
| |
| /** Manages app banners shown for this tab. */ |
| private AppBannerManager mAppBannerManager; |
| |
| /** Controls overscroll pull-to-refresh behavior for this tab. */ |
| private SwipeRefreshHandler mSwipeRefreshHandler; |
| |
| /** The sync id of the Tab if session sync is enabled. */ |
| private int mSyncId; |
| |
| /** {@link ContentViewCore} showing the current page, or {@code null} if the tab is frozen. */ |
| private ContentViewCore mContentViewCore; |
| |
| /** Listens to gesture events fired by the ContentViewCore. */ |
| private GestureStateListener mGestureStateListener; |
| |
| /** The parent view of the ContentView and the InfoBarContainer. */ |
| private FrameLayout mContentViewParent; |
| |
| /** A list of Tab observers. These are used to broadcast Tab events to listeners. */ |
| private final ObserverList<TabObserver> mObservers = new ObserverList<TabObserver>(); |
| |
| /** |
| * A list of {@link ContentViewCore} overlay objects that are managed by external components but |
| * need to be sized and rendered along side this {@link Tab}s content. |
| */ |
| private final List<ContentViewCore> mOverlayContentViewCores = new ArrayList<ContentViewCore>(); |
| |
| // Content layer Observers and Delegates |
| private ContentViewClient mContentViewClient; |
| private TabWebContentsObserver mWebContentsObserver; |
| private TabWebContentsDelegateAndroid mWebContentsDelegate; |
| |
| /** |
| * If this tab was opened from another tab, store the id of the tab that |
| * caused it to be opened so that we can activate it when this tab gets |
| * closed. |
| */ |
| private int mParentId = INVALID_TAB_ID; |
| |
| /** |
| * If this tab was opened from another tab in another Activity, this is the Intent that can be |
| * fired to bring the parent Activity back. |
| * TODO(dfalcantara): Remove this mechanism when we have a global TabManager. |
| */ |
| private Intent mParentIntent; |
| |
| /** |
| * Whether the tab should be grouped with its parent tab. |
| */ |
| private boolean mGroupedWithParent = true; |
| |
| private boolean mIsClosing; |
| private boolean mIsShowingErrorPage; |
| |
| private Bitmap mFavicon; |
| |
| private String mFaviconUrl; |
| |
| /** |
| * The size in pixels at which favicons will be drawn. Ideally mFavicon will have this size to |
| * avoid scaling artifacts. |
| */ |
| private int mIdealFaviconSize; |
| |
| /** Whether or not the TabState has changed. */ |
| private boolean mIsTabStateDirty = true; |
| |
| /** |
| * Saves how this tab was launched (from a link, external app, etc) so that |
| * we can determine the different circumstances in which it should be |
| * closed. For example, a tab opened from an external app should be closed |
| * when the back stack is empty and the user uses the back hardware key. A |
| * standard tab however should be kept open and the entire activity should |
| * be moved to the background. |
| */ |
| private final TabLaunchType mLaunchType; |
| |
| /** |
| * Navigation state of the WebContents as returned by nativeGetContentsStateAsByteBuffer(), |
| * stored to be inflated on demand using unfreezeContents(). If this is not null, there is no |
| * WebContents around. Upon tab switch WebContents will be unfrozen and the variable will be set |
| * to null. |
| */ |
| private WebContentsState mFrozenContentsState; |
| |
| /** |
| * Whether the restoration from frozen state failed. |
| */ |
| private boolean mFailedToRestore; |
| |
| /** |
| * URL load to be performed lazily when the Tab is next shown. |
| */ |
| private LoadUrlParams mPendingLoadParams; |
| |
| /** |
| * URL of the page currently loading. Used as a fall-back in case tab restore fails. |
| */ |
| private String mUrl; |
| |
| /** |
| * The external application that this Tab is associated with (null if not associated with any |
| * app). Allows reusing of tabs opened from the same application. |
| */ |
| private String mAppAssociatedWith; |
| |
| /** |
| * Keeps track of whether the Tab should be kept in the TabModel after the user hits "back". |
| * Used by Document mode to keep track of whether we want to remove the tab when user hits back. |
| */ |
| private boolean mShouldPreserve; |
| |
| /** |
| * Indicates if the tab needs to be reloaded upon next display. This is set to true when the tab |
| * crashes while in background, or if a speculative restore in background gets cancelled before |
| * it completes. |
| */ |
| private boolean mNeedsReload; |
| |
| /** |
| * True while a page load is in progress. |
| */ |
| private boolean mIsLoading; |
| |
| /** |
| * True while a restore page load is in progress. |
| */ |
| private boolean mIsBeingRestored; |
| |
| /** |
| * Whether or not the Tab is currently visible to the user. |
| */ |
| private boolean mIsHidden = true; |
| |
| /** |
| * The last time this tab was shown or the time of its initialization if it wasn't yet shown. |
| */ |
| private long mTimestampMillis = INVALID_TIMESTAMP; |
| |
| /** |
| * Title of the ContentViews webpage.Always update mTitle through updateTitle() so that it also |
| * updates mIsTitleDirectionRtl correctly. |
| */ |
| private String mTitle; |
| |
| /** |
| * Indicates if mTitle should be displayed from right to left. |
| */ |
| private boolean mIsTitleDirectionRtl; |
| |
| /** |
| * The mInterceptNavigationDelegate will be consulted for top-level frame navigations. This |
| * allows presenting the intent picker to the user so that a native Android application can be |
| * used if available. |
| */ |
| private InterceptNavigationDelegateImpl mInterceptNavigationDelegate; |
| |
| /** |
| * Whether didCommitProvisionalLoadForFrame() hasn't yet been called for the current native page |
| * (page A). To decrease latency, we show native pages in both loadUrl() and |
| * didCommitProvisionalLoadForFrame(). However, we mustn't show a new native page (page B) in |
| * loadUrl() if the current native page hasn't yet been committed. Otherwise, we'll show each |
| * page twice (A, B, A, B): the first two times in loadUrl(), the second two times in |
| * didCommitProvisionalLoadForFrame(). |
| */ |
| private boolean mIsNativePageCommitPending; |
| |
| private TabRedirectHandler mTabRedirectHandler; |
| |
| private FullscreenManager mFullscreenManager; |
| private float mPreviousFullscreenTopControlsOffsetY = Float.NaN; |
| private float mPreviousFullscreenContentOffsetY = Float.NaN; |
| private int mFullscreenHungRendererToken = FullscreenManager.INVALID_TOKEN; |
| private boolean mIsFullscreenWaitingForLoad = false; |
| |
| /** |
| * The UMA object used to report stats for this tab. Note that this may be null under certain |
| * conditions, such as incognito mode. |
| */ |
| private TabUma mTabUma; |
| |
| /** |
| * Reference to the current sadTabView if one is defined. |
| */ |
| private View mSadTabView; |
| |
| private final int mDefaultThemeColor; |
| |
| private ChromeDownloadDelegate mDownloadDelegate; |
| |
| protected Handler mHandler; |
| |
| private LofiBarController mLoFiBarController; |
| |
| /** Whether or not the tab closing the tab can send the user back to the app that opened it. */ |
| private boolean mIsAllowedToReturnToExternalApp; |
| |
| private class TabContentViewClient extends ContentViewClient { |
| @Override |
| public void onBackgroundColorChanged(int color) { |
| Tab.this.onBackgroundColorChanged(color); |
| } |
| |
| @Override |
| public void onOffsetsForFullscreenChanged( |
| float topControlsOffsetY, float contentOffsetY) { |
| onOffsetsChanged(topControlsOffsetY, contentOffsetY, isShowingSadTab()); |
| } |
| |
| @Override |
| public void onUpdateTitle(String title) { |
| updateTitle(title); |
| } |
| |
| @Override |
| public void onContextualActionBarShown() { |
| for (TabObserver observer : mObservers) { |
| observer.onContextualActionBarVisibilityChanged(Tab.this, true); |
| } |
| } |
| |
| @Override |
| public void onContextualActionBarHidden() { |
| for (TabObserver observer : mObservers) { |
| observer.onContextualActionBarVisibilityChanged(Tab.this, false); |
| } |
| } |
| |
| @Override |
| public void onImeEvent() { |
| // Some text was set in the page. Don't reuse it if a tab is |
| // open from the same external application, we might lose some |
| // user data. |
| mAppAssociatedWith = null; |
| } |
| |
| @Override |
| public void onFocusedNodeEditabilityChanged(boolean editable) { |
| if (getFullscreenManager() == null) return; |
| updateFullscreenEnabledState(); |
| } |
| |
| @Override |
| public boolean doesPerformWebSearch() { |
| return true; |
| } |
| |
| @Override |
| public void performWebSearch(String searchQuery) { |
| if (TextUtils.isEmpty(searchQuery)) return; |
| if (getTabModelSelector() == null) return; |
| String url = TemplateUrlService.getInstance().getUrlForSearchQuery(searchQuery); |
| String headers = GeolocationHeader.getGeoHeader(getApplicationContext(), url, |
| isIncognito()); |
| |
| LoadUrlParams loadUrlParams = new LoadUrlParams(url); |
| loadUrlParams.setVerbatimHeaders(headers); |
| loadUrlParams.setTransitionType(PageTransition.GENERATED); |
| getTabModelSelector().openNewTab(loadUrlParams, |
| TabLaunchType.FROM_LONGPRESS_FOREGROUND, Tab.this, isIncognito()); |
| } |
| |
| @Override |
| public int getSystemWindowInsetLeft() { |
| ChromeActivity activity = getActivity(); |
| if (activity != null) { |
| return activity.getInsetObserverView().getSystemWindowInsetsLeft(); |
| } |
| return 0; |
| } |
| |
| @Override |
| public int getSystemWindowInsetTop() { |
| ChromeActivity activity = getActivity(); |
| if (activity != null) { |
| return activity.getInsetObserverView().getSystemWindowInsetsTop(); |
| } |
| return 0; |
| } |
| |
| @Override |
| public int getSystemWindowInsetRight() { |
| ChromeActivity activity = getActivity(); |
| if (activity != null) { |
| return activity.getInsetObserverView().getSystemWindowInsetsRight(); |
| } |
| return 0; |
| } |
| |
| @Override |
| public int getSystemWindowInsetBottom() { |
| ChromeActivity activity = getActivity(); |
| if (activity != null) { |
| return activity.getInsetObserverView().getSystemWindowInsetsBottom(); |
| } |
| return 0; |
| } |
| |
| @Override |
| public ContentVideoViewEmbedder getContentVideoViewEmbedder() { |
| return new ActivityContentVideoViewEmbedder(getActivity()) { |
| @Override |
| public void enterFullscreenVideo(View view) { |
| super.enterFullscreenVideo(view); |
| FullscreenManager fullscreenManager = getFullscreenManager(); |
| if (fullscreenManager != null) { |
| fullscreenManager.setOverlayVideoMode(true); |
| // Disable double tap for video. |
| if (getContentViewCore() != null) { |
| getContentViewCore().updateDoubleTapSupport(false); |
| } |
| } |
| } |
| |
| @Override |
| public void exitFullscreenVideo() { |
| FullscreenManager fullscreenManager = getFullscreenManager(); |
| if (fullscreenManager != null) { |
| fullscreenManager.setOverlayVideoMode(false); |
| // Disable double tap for video. |
| if (getContentViewCore() != null) { |
| getContentViewCore().updateDoubleTapSupport(true); |
| } |
| } |
| super.exitFullscreenVideo(); |
| } |
| }; |
| } |
| } |
| |
| private GestureStateListener createGestureStateListener() { |
| return new GestureStateListener() { |
| @Override |
| public void onFlingStartGesture(int vx, int vy, int scrollOffsetY, int scrollExtentY) { |
| onScrollingStateChanged(); |
| } |
| |
| @Override |
| public void onFlingEndGesture(int scrollOffsetY, int scrollExtentY) { |
| onScrollingStateChanged(); |
| } |
| |
| @Override |
| public void onScrollStarted(int scrollOffsetY, int scrollExtentY) { |
| onScrollingStateChanged(); |
| } |
| |
| @Override |
| public void onScrollEnded(int scrollOffsetY, int scrollExtentY) { |
| onScrollingStateChanged(); |
| } |
| |
| private void onScrollingStateChanged() { |
| FullscreenManager fullscreenManager = getFullscreenManager(); |
| if (fullscreenManager == null) return; |
| fullscreenManager.onContentViewScrollingStateChanged( |
| getContentViewCore() != null && getContentViewCore().isScrollInProgress()); |
| } |
| }; |
| } |
| |
| // TODO(dtrainor): Port more methods to the observer. |
| private final TabObserver mTabObserver = new EmptyTabObserver() { |
| @Override |
| public void onSSLStateUpdated(Tab tab) { |
| PolicyAuditor auditor = |
| ((ChromeApplication) getApplicationContext()).getPolicyAuditor(); |
| auditor.notifyCertificateFailure(getWebContents(), getApplicationContext()); |
| updateFullscreenEnabledState(); |
| } |
| |
| @Override |
| public void onWebContentsSwapped(Tab tab, boolean didStartLoad, boolean didFinishLoad) { |
| if (!didStartLoad) return; |
| |
| String url = tab.getUrl(); |
| // Simulate the PAGE_LOAD_STARTED notification that we did not get. |
| didStartPageLoad(url, false); |
| |
| // As we may have missed the main frame commit notification for the |
| // swapped web contents, schedule the enabling of fullscreen now. |
| scheduleEnableFullscreenLoadDelayIfNecessary(); |
| |
| if (didFinishLoad) { |
| // Simulate the PAGE_LOAD_FINISHED notification that we did not get. |
| didFinishPageLoad(); |
| } |
| } |
| }; |
| |
| private TabDelegateFactory mDelegateFactory; |
| |
| private TopControlsVisibilityDelegate mTopControlsVisibilityDelegate; |
| |
| /** |
| * Creates an instance of a {@link Tab}. |
| * |
| * This constructor may be called before the native library has been loaded, so any additions |
| * must be vetted for library calls. |
| * |
| * @param id The id this tab should be identified with. |
| * @param incognito Whether or not this tab is incognito. |
| * @param window An instance of a {@link WindowAndroid}. |
| */ |
| public Tab(int id, boolean incognito, WindowAndroid window) { |
| this(id, INVALID_TAB_ID, incognito, null, window, null, null, null); |
| } |
| |
| /** |
| * Creates an instance of a {@link Tab}. |
| * |
| * This constructor can be called before the native library has been loaded, so any additions |
| * must be vetted for library calls. |
| * |
| * @param id The id this tab should be identified with. |
| * @param parentId The id id of the tab that caused this tab to be opened. |
| * @param incognito Whether or not this tab is incognito. |
| * @param context An instance of a {@link Context}. |
| * @param window An instance of a {@link WindowAndroid}. |
| * @param creationState State in which the tab is created, needed to initialize TabUma |
| * accounting. When null, TabUma will not be initialized. |
| * @param frozenState State containing information about this Tab, if it was persisted. |
| */ |
| public Tab(int id, int parentId, boolean incognito, Context context, |
| WindowAndroid window, TabLaunchType type, TabCreationState creationState, |
| TabState frozenState) { |
| mId = TabIdManager.getInstance().generateValidId(id); |
| mParentId = parentId; |
| mIncognito = incognito; |
| mThemedApplicationContext = context != null ? new ContextThemeWrapper( |
| context.getApplicationContext(), ChromeActivity.getThemeId()) : null; |
| mWindowAndroid = window; |
| mLaunchType = type; |
| if (mThemedApplicationContext != null) { |
| if (getSnackbarManager() != null) { |
| mLoFiBarController = new LofiBarController( |
| mThemedApplicationContext, getSnackbarManager()); |
| } |
| Resources resources = mThemedApplicationContext.getResources(); |
| mIdealFaviconSize = resources.getDimensionPixelSize(R.dimen.default_favicon_size); |
| mDefaultThemeColor = mIncognito |
| ? ApiCompatibilityUtils.getColor(resources, R.color.incognito_primary_color) |
| : ApiCompatibilityUtils.getColor(resources, R.color.default_primary_color); |
| } else { |
| mIdealFaviconSize = 16; |
| mDefaultThemeColor = 0; |
| } |
| |
| // Restore data from the TabState, if it existed. |
| if (frozenState == null) { |
| assert type != TabLaunchType.FROM_RESTORE; |
| } else { |
| assert type == TabLaunchType.FROM_RESTORE; |
| restoreFieldsFromState(frozenState); |
| } |
| |
| setContentViewClient(new TabContentViewClient()); |
| |
| mHandler = new Handler() { |
| @Override |
| public void handleMessage(Message msg) { |
| if (msg == null) return; |
| if (msg.what == MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD) { |
| enableFullscreenAfterLoad(); |
| } |
| } |
| }; |
| mTabRedirectHandler = new TabRedirectHandler(mThemedApplicationContext); |
| addObserver(mTabObserver); |
| |
| if (incognito) { |
| CipherFactory.getInstance().triggerKeyGeneration(); |
| } |
| |
| ContextualSearchTabHelper.createForTab(this); |
| MediaSessionTabHelper.createForTab(this); |
| |
| if (creationState != null) { |
| mTabUma = new TabUma(creationState); |
| if (frozenState == null) { |
| assert type != TabLaunchType.FROM_RESTORE |
| && creationState != TabCreationState.FROZEN_ON_RESTORE; |
| } else { |
| assert type == TabLaunchType.FROM_RESTORE |
| && creationState == TabCreationState.FROZEN_ON_RESTORE; |
| } |
| } |
| } |
| |
| private void enableFullscreenAfterLoad() { |
| if (!mIsFullscreenWaitingForLoad) return; |
| |
| mIsFullscreenWaitingForLoad = false; |
| updateFullscreenEnabledState(); |
| } |
| |
| /** |
| * Restores member fields from the given TabState. |
| * @param state TabState containing information about this Tab. |
| */ |
| private void restoreFieldsFromState(TabState state) { |
| assert state != null; |
| mAppAssociatedWith = state.openerAppId; |
| mFrozenContentsState = state.contentsState; |
| mSyncId = (int) state.syncId; |
| mShouldPreserve = state.shouldPreserve; |
| mTimestampMillis = state.timestampMillis; |
| mUrl = state.getVirtualUrlFromState(); |
| |
| mTitle = state.getDisplayTitleFromState(); |
| mIsTitleDirectionRtl = LocalizationUtils.getFirstStrongCharacterDirection(mTitle) |
| == LocalizationUtils.RIGHT_TO_LEFT; |
| } |
| |
| /** |
| * Adds a {@link TabObserver} to be notified on {@link Tab} changes. |
| * @param observer The {@link TabObserver} to add. |
| */ |
| public void addObserver(TabObserver observer) { |
| mObservers.addObserver(observer); |
| } |
| |
| /** |
| * Removes a {@link TabObserver}. |
| * @param observer The {@link TabObserver} to remove. |
| */ |
| public void removeObserver(TabObserver observer) { |
| mObservers.removeObserver(observer); |
| } |
| |
| /** |
| * @return Whether or not this tab has a previous navigation entry. |
| */ |
| public boolean canGoBack() { |
| return getWebContents() != null && getWebContents().getNavigationController().canGoBack(); |
| } |
| |
| /** |
| * @return Whether or not this tab has a navigation entry after the current one. |
| */ |
| public boolean canGoForward() { |
| return getWebContents() != null && getWebContents().getNavigationController() |
| .canGoForward(); |
| } |
| |
| /** |
| * Goes to the navigation entry before the current one. |
| */ |
| public void goBack() { |
| if (getWebContents() != null) getWebContents().getNavigationController().goBack(); |
| } |
| |
| /** |
| * Goes to the navigation entry after the current one. |
| */ |
| public void goForward() { |
| if (getWebContents() != null) getWebContents().getNavigationController().goForward(); |
| } |
| |
| /** |
| * Loads the current navigation if there is a pending lazy load (after tab restore). |
| */ |
| public void loadIfNecessary() { |
| if (getWebContents() != null) getWebContents().getNavigationController().loadIfNecessary(); |
| } |
| |
| /** |
| * Requests the current navigation to be loaded upon the next call to loadIfNecessary(). |
| */ |
| protected void requestRestoreLoad() { |
| if (getWebContents() != null) { |
| getWebContents().getNavigationController().requestRestoreLoad(); |
| } |
| } |
| |
| /** |
| * Causes this tab to navigate to the specified URL. |
| * @param params parameters describing the url load. Note that it is important to set correct |
| * page transition as it is used for ranking URLs in the history so the omnibox |
| * can report suggestions correctly. |
| * @return FULL_PRERENDERED_PAGE_LOAD or PARTIAL_PRERENDERED_PAGE_LOAD if the page has been |
| * prerendered. DEFAULT_PAGE_LOAD if it had not. |
| */ |
| public int loadUrl(LoadUrlParams params) { |
| try { |
| TraceEvent.begin("Tab.loadUrl"); |
| // TODO(tedchoc): When showing the android NTP, delay the call to nativeLoadUrl until |
| // the android view has entirely rendered. |
| if (!mIsNativePageCommitPending) { |
| mIsNativePageCommitPending = maybeShowNativePage(params.getUrl(), false); |
| } |
| |
| removeSadTabIfPresent(); |
| |
| // Clear the app association if the user navigated to a different page from the omnibox. |
| if ((params.getTransitionType() & PageTransition.FROM_ADDRESS_BAR) |
| == PageTransition.FROM_ADDRESS_BAR) { |
| mAppAssociatedWith = null; |
| setIsAllowedToReturnToExternalApp(false); |
| } |
| |
| // We load the URL from the tab rather than directly from the ContentView so the tab has |
| // a chance of using a prerenderer page is any. |
| int loadType = nativeLoadUrl(mNativeTabAndroid, params.getUrl(), |
| params.getVerbatimHeaders(), params.getPostData(), params.getTransitionType(), |
| params.getReferrer() != null ? params.getReferrer().getUrl() : null, |
| // Policy will be ignored for null referrer url, 0 is just a placeholder. |
| // TODO(ppi): Should we pass Referrer jobject and add JNI methods to read it |
| // from the native? |
| params.getReferrer() != null ? params.getReferrer().getPolicy() : 0, |
| params.getIsRendererInitiated(), params.getShouldReplaceCurrentEntry(), |
| params.getIntentReceivedTimestamp(), params.getHasUserGesture()); |
| |
| for (TabObserver observer : mObservers) { |
| observer.onLoadUrl(this, params, loadType); |
| } |
| return loadType; |
| } finally { |
| TraceEvent.end("Tab.loadUrl"); |
| } |
| } |
| |
| /** |
| * Load the original image (uncompressed by spdy proxy) in this tab. |
| */ |
| void loadOriginalImage() { |
| if (mNativeTabAndroid != 0) nativeLoadOriginalImage(mNativeTabAndroid); |
| } |
| |
| /** |
| * @return Whether or not the {@link Tab} is currently showing an interstitial page, such as |
| * a bad HTTPS page. |
| */ |
| public boolean isShowingInterstitialPage() { |
| return getWebContents() != null && getWebContents().isShowingInterstitialPage(); |
| } |
| |
| /** |
| * @return Whether the {@link Tab} is currently showing an error page. |
| */ |
| public boolean isShowingErrorPage() { |
| return mIsShowingErrorPage; |
| } |
| |
| /** |
| * Sets whether the tab is showing an error page. This is reset whenever the tab finishes a |
| * navigation. |
| * |
| * @param isShowingErrorPage Whether the tab shows an error page. |
| */ |
| public void setIsShowingErrorPage(boolean isShowingErrorPage) { |
| mIsShowingErrorPage = isShowingErrorPage; |
| } |
| |
| /** |
| * @return Whether or not the tab has something valid to render. |
| */ |
| public boolean isReady() { |
| return mNativePage != null || (getWebContents() != null && getWebContents().isReady()); |
| } |
| |
| /** |
| * @return The {@link View} displaying the current page in the tab. This might be a |
| * native view or a placeholder view for content rendered by the compositor. |
| * This can be {@code null}, if the tab is frozen or being initialized or destroyed. |
| */ |
| public View getView() { |
| return mNativePage != null ? mNativePage.getView() : mContentViewParent; |
| } |
| |
| /** |
| * @return The width of the content of this tab. Can be 0 if there is no content. |
| */ |
| public int getWidth() { |
| View view = getView(); |
| return view != null ? view.getWidth() : 0; |
| } |
| |
| /** |
| * @return The height of the content of this tab. Can be 0 if there is no content. |
| */ |
| public int getHeight() { |
| View view = getView(); |
| return view != null ? view.getHeight() : 0; |
| } |
| |
| /** |
| * @return The application {@link Context} associated with this tab. |
| */ |
| protected Context getApplicationContext() { |
| return mThemedApplicationContext.getApplicationContext(); |
| } |
| |
| /** |
| * @return {@link ChromeActivity} that currently contains this {@link Tab} in its |
| * {@link TabModel}. |
| */ |
| ChromeActivity getActivity() { |
| Activity activity = WindowAndroid.activityFromContext( |
| getWindowAndroid().getContext().get()); |
| if (activity instanceof ChromeActivity) return (ChromeActivity) activity; |
| return null; |
| } |
| |
| /** |
| * @return {@link TabModelSelector} that currently hosts the {@link TabModel} for this |
| * {@link Tab}. |
| */ |
| TabModelSelector getTabModelSelector() { |
| if (getActivity() == null) return null; |
| return getActivity().getTabModelSelector(); |
| } |
| |
| /** |
| * @return The infobar container. |
| */ |
| public final InfoBarContainer getInfoBarContainer() { |
| return mInfoBarContainer; |
| } |
| |
| /** @return An opaque "state" object that can be persisted to storage. */ |
| public TabState getState() { |
| if (!isInitialized()) return null; |
| TabState tabState = new TabState(); |
| tabState.contentsState = getWebContentsState(); |
| tabState.openerAppId = mAppAssociatedWith; |
| tabState.parentId = mParentId; |
| tabState.shouldPreserve = mShouldPreserve; |
| tabState.syncId = mSyncId; |
| tabState.timestampMillis = mTimestampMillis; |
| return tabState; |
| } |
| |
| /** @return WebContentsState representing the state of the WebContents (navigations, etc.) */ |
| public WebContentsState getFrozenContentsState() { |
| return mFrozenContentsState; |
| } |
| |
| /** Returns an object representing the state of the Tab's WebContents. */ |
| private TabState.WebContentsState getWebContentsState() { |
| if (mFrozenContentsState != null) return mFrozenContentsState; |
| |
| // Native call returns null when buffer allocation needed to serialize the state failed. |
| ByteBuffer buffer = getWebContentsStateAsByteBuffer(); |
| if (buffer == null) return null; |
| |
| TabState.WebContentsState state = new TabState.WebContentsStateNative(buffer); |
| state.setVersion(TabState.CONTENTS_STATE_CURRENT_VERSION); |
| return state; |
| } |
| |
| /** Returns an ByteBuffer representing the state of the Tab's WebContents. */ |
| private ByteBuffer getWebContentsStateAsByteBuffer() { |
| if (mPendingLoadParams == null) { |
| return TabState.getContentsStateAsByteBuffer(this); |
| } else { |
| Referrer referrer = mPendingLoadParams.getReferrer(); |
| return TabState.createSingleNavigationStateAsByteBuffer( |
| mPendingLoadParams.getUrl(), |
| referrer != null ? referrer.getUrl() : null, |
| // Policy will be ignored for null referrer url, 0 is just a placeholder. |
| referrer != null ? referrer.getPolicy() : 0, |
| isIncognito()); |
| } |
| } |
| |
| /** |
| * Prints the current page. |
| * |
| * @return Whether the printing process is started successfully. |
| **/ |
| public boolean print() { |
| assert mNativeTabAndroid != 0; |
| return nativePrint(mNativeTabAndroid); |
| } |
| |
| @CalledByNative |
| public void setPendingPrint() { |
| PrintingController printingController = PrintingControllerImpl.getInstance(); |
| if (printingController == null) return; |
| |
| printingController.setPendingPrint(new TabPrinter(this), |
| new PrintManagerDelegateImpl(getActivity())); |
| } |
| |
| /** |
| * Reloads the current page content. |
| */ |
| public void reload() { |
| // TODO(dtrainor): Should we try to rebuild the ContentView if it's frozen? |
| if (getWebContents() != null) getWebContents().getNavigationController().reload(true); |
| } |
| |
| /** |
| * Reloads the current page content. |
| * This version ignores the cache and reloads from the network. |
| */ |
| public void reloadIgnoringCache() { |
| if (getWebContents() != null) { |
| getWebContents().getNavigationController().reloadIgnoringCache(true); |
| } |
| } |
| |
| /** |
| * Reloads the current page content with Lo-Fi off. |
| * This version ignores the cache and reloads from the network. |
| */ |
| public void reloadDisableLoFi() { |
| if (getWebContents() != null) { |
| getWebContents().getNavigationController().reloadDisableLoFi(true); |
| } |
| } |
| |
| /** |
| * Reloads all the Lo-Fi images in this Tab's WebContents. |
| * This version ignores the cache and reloads from the network. |
| */ |
| public void reloadLoFiImages() { |
| if (getWebContents() != null) { |
| getWebContents().reloadLoFiImages(); |
| } |
| } |
| |
| /** |
| * @return Whether or not the loading and rendering of the page is done. |
| */ |
| @VisibleForTesting |
| public boolean isLoadingAndRenderingDone() { |
| return isReady() && getProgress() >= CONSIDERED_READY_LOAD_PERCENTAGE; |
| } |
| |
| /** Stop the current navigation. */ |
| public void stopLoading() { |
| if (isLoading()) { |
| RewindableIterator<TabObserver> observers = getTabObservers(); |
| while (observers.hasNext()) observers.next().onPageLoadFinished(this); |
| } |
| if (getWebContents() != null) getWebContents().stop(); |
| } |
| |
| /** |
| * @return a value between 0 and 100 reflecting what percentage of the page load is complete. |
| */ |
| public int getProgress() { |
| TabWebContentsDelegateAndroid delegate = getTabWebContentsDelegateAndroid(); |
| if (delegate == null) return 0; |
| return isLoading() ? delegate.getMostRecentProgress() : 100; |
| } |
| |
| /** |
| * @return The background color of the tab. |
| */ |
| public int getBackgroundColor() { |
| if (mNativePage != null) return mNativePage.getBackgroundColor(); |
| if (getWebContents() != null) return getWebContents().getBackgroundColor(); |
| return Color.WHITE; |
| } |
| |
| /** |
| * @return The current theme color based on the value passed from the web contents and the |
| * security state. |
| */ |
| public int getThemeColor() { |
| if (isNativePage()) return mNativePage.getThemeColor(); |
| if (mWebContentsObserver != null) return mWebContentsObserver.getThemeColor(); |
| return mDefaultThemeColor; |
| } |
| |
| /** |
| * @return The web contents associated with this tab. |
| */ |
| public WebContents getWebContents() { |
| return mContentViewCore != null ? mContentViewCore.getWebContents() : null; |
| } |
| |
| /** |
| * @return The profile associated with this tab. |
| */ |
| public Profile getProfile() { |
| if (mNativeTabAndroid == 0) return null; |
| return nativeGetProfileAndroid(mNativeTabAndroid); |
| } |
| |
| /** |
| * For more information about the uniqueness of {@link #getId()} see comments on {@link Tab}. |
| * @see Tab |
| * @return The id representing this tab. |
| */ |
| @CalledByNative |
| public int getId() { |
| return mId; |
| } |
| |
| /** |
| * @return Whether or not this tab is incognito. |
| */ |
| public boolean isIncognito() { |
| return mIncognito; |
| } |
| |
| /** |
| * @return The {@link ContentViewCore} associated with the current page, or {@code null} if |
| * there is no current page or the current page is displayed using a native view. |
| */ |
| public ContentViewCore getContentViewCore() { |
| return mNativePage == null ? mContentViewCore : null; |
| } |
| |
| /** |
| * @return The {@link NativePage} associated with the current page, or {@code null} if there is |
| * no current page or the current page is displayed using something besides |
| * {@link NativePage}. |
| */ |
| public NativePage getNativePage() { |
| return mNativePage; |
| } |
| |
| /** |
| * @return Whether or not the {@link Tab} represents a {@link NativePage}. |
| */ |
| public boolean isNativePage() { |
| return mNativePage != null; |
| } |
| |
| /** |
| * Set whether or not the {@link ContentViewCore} should be using a desktop user agent for the |
| * currently loaded page. |
| * @param useDesktop If {@code true}, use a desktop user agent. Otherwise use a mobile one. |
| * @param reloadOnChange Reload the page if the user agent has changed. |
| */ |
| public void setUseDesktopUserAgent(boolean useDesktop, boolean reloadOnChange) { |
| if (getWebContents() != null) { |
| getWebContents().getNavigationController() |
| .setUseDesktopUserAgent(useDesktop, reloadOnChange); |
| } |
| } |
| |
| /** |
| * @return Whether or not the {@link ContentViewCore} is using a desktop user agent. |
| */ |
| public boolean getUseDesktopUserAgent() { |
| return getWebContents() != null && getWebContents().getNavigationController() |
| .getUseDesktopUserAgent(); |
| } |
| |
| /** |
| * @return The current {@link ConnectionSecurityLevel} for the tab. |
| */ |
| // TODO(tedchoc): Remove this and transition all clients to use ToolbarModel directly. |
| public int getSecurityLevel() { |
| return SecurityStateModel.getSecurityLevelForWebContents(getWebContents()); |
| } |
| |
| /** |
| * @return The sync id of the tab if session sync is enabled, {@code 0} otherwise. |
| */ |
| @CalledByNative |
| private int getSyncId() { |
| return mSyncId; |
| } |
| |
| /** |
| * @param syncId The sync id of the tab if session sync is enabled. |
| */ |
| @CalledByNative |
| private void setSyncId(int syncId) { |
| mSyncId = syncId; |
| } |
| |
| /** |
| * @return An {@link ObserverList.RewindableIterator} instance that points to all of |
| * the current {@link TabObserver}s on this class. Note that calling |
| * {@link java.util.Iterator#remove()} will throw an |
| * {@link UnsupportedOperationException}. |
| */ |
| public ObserverList.RewindableIterator<TabObserver> getTabObservers() { |
| return mObservers.rewindableIterator(); |
| } |
| |
| /** |
| * @param client The {@link ContentViewClient} to be bound to any current or new |
| * {@link ContentViewCore}s associated with this {@link Tab}. |
| */ |
| private void setContentViewClient(ContentViewClient client) { |
| if (mContentViewClient == client) return; |
| |
| ContentViewClient oldClient = mContentViewClient; |
| mContentViewClient = client; |
| |
| if (mContentViewCore == null) return; |
| |
| if (mContentViewClient != null) { |
| mContentViewCore.setContentViewClient(mContentViewClient); |
| } else if (oldClient != null) { |
| // We can't set a null client, but we should clear references to the last one. |
| mContentViewCore.setContentViewClient(new ContentViewClient()); |
| } |
| } |
| |
| /** |
| * Called on the foreground tab when the Activity showing the Tab gets started. This is called |
| * on both cold and warm starts. |
| */ |
| public void onActivityShown() { |
| if (isHidden()) { |
| show(TabSelectionType.FROM_USER); |
| } else { |
| // The visible Tab's renderer process may have died after the activity was paused. |
| // Ensure that it's restored appropriately. |
| loadIfNeeded(); |
| } |
| |
| // When resuming the activity, force an update to the fullscreen state to ensure a |
| // subactivity did not change the fullscreen configuration of this ChromeTab's renderer in |
| // the case where it was shared (i.e. via an EmbedContentViewActivity). |
| updateFullscreenEnabledState(); |
| } |
| |
| /** |
| * Called on the foreground tab when the Activity showing the Tab gets stopped. |
| */ |
| public void onActivityHidden() { |
| hide(); |
| |
| if (mTabUma != null) mTabUma.onActivityHidden(); |
| } |
| |
| /** |
| * @return Whether the tab is ready to display or it should be faded in as it loads. |
| */ |
| public boolean shouldStall() { |
| return (isFrozen() || needsReload()) |
| && !NativePageFactory.isNativePageUrl(getUrl(), isIncognito()); |
| } |
| |
| /** |
| * Prepares the tab to be shown. This method is supposed to be called before the tab is |
| * displayed. It restores the ContentView if it is not available after the cold start and |
| * reloads the tab if its renderer has crashed. |
| * @param type Specifies how the tab was selected. |
| */ |
| public final void show(TabSelectionType type) { |
| try { |
| TraceEvent.begin("Tab.show"); |
| if (!isHidden()) return; |
| // Keep unsetting mIsHidden above loadIfNeeded(), so that we pass correct visibility |
| // when spawning WebContents in loadIfNeeded(). |
| mIsHidden = false; |
| |
| loadIfNeeded(); |
| assert !isFrozen(); |
| |
| if (mContentViewCore != null) mContentViewCore.onShow(); |
| |
| if (mTabUma != null) { |
| mTabUma.onShow(type, getTimestampMillis(), |
| computeMRURank(this, getTabModelSelector().getModel(mIncognito))); |
| } |
| |
| // If the NativePage was frozen while in the background (see NativePageAssassin), |
| // recreate the NativePage now. |
| if (getNativePage() instanceof FrozenNativePage) { |
| maybeShowNativePage(getUrl(), true); |
| } |
| NativePageAssassin.getInstance().tabShown(this); |
| |
| // If the page is still loading, update the progress bar (otherwise it would not show |
| // until the renderer notifies of new progress being made). |
| if (getProgress() < 100 && !isShowingInterstitialPage()) { |
| notifyLoadProgress(getProgress()); |
| } |
| |
| // Updating the timestamp has to happen after the showInternal() call since subclasses |
| // may use it for logging. |
| mTimestampMillis = System.currentTimeMillis(); |
| |
| for (TabObserver observer : mObservers) observer.onShown(this); |
| } finally { |
| TraceEvent.end("Tab.show"); |
| } |
| } |
| |
| /** |
| * Triggers the hiding logic for the view backing the tab. |
| */ |
| public final void hide() { |
| try { |
| TraceEvent.begin("Tab.hide"); |
| if (isHidden()) return; |
| mIsHidden = true; |
| |
| if (mContentViewCore != null) mContentViewCore.onHide(); |
| |
| // Clean up any fullscreen state that might impact other tabs. |
| if (mFullscreenManager != null) { |
| mFullscreenManager.setPersistentFullscreenMode(false); |
| mFullscreenManager.hideControlsPersistent(mFullscreenHungRendererToken); |
| mFullscreenHungRendererToken = FullscreenManager.INVALID_TOKEN; |
| } |
| |
| if (mTabUma != null) mTabUma.onHide(); |
| |
| mTabRedirectHandler.clear(); |
| |
| cancelEnableFullscreenLoadDelay(); |
| |
| // Allow this tab's NativePage to be frozen if it stays hidden for a while. |
| NativePageAssassin.getInstance().tabHidden(this); |
| |
| for (TabObserver observer : mObservers) observer.onHidden(this); |
| } finally { |
| TraceEvent.end("Tab.hide"); |
| } |
| } |
| |
| /** |
| * Shows the given {@code nativePage} if it's not already showing. |
| * @param nativePage The {@link NativePage} to show. |
| */ |
| private void showNativePage(NativePage nativePage) { |
| if (mNativePage == nativePage) return; |
| NativePage previousNativePage = mNativePage; |
| mNativePage = nativePage; |
| pushNativePageStateToNavigationEntry(); |
| // Notifying of theme color change before content change because some of |
| // the observers depend on the theme information being correct in |
| // onContentChanged(). |
| for (TabObserver observer : mObservers) { |
| observer.onDidChangeThemeColor(this, mDefaultThemeColor); |
| } |
| for (TabObserver observer : mObservers) { |
| observer.onContentChanged(this); |
| } |
| destroyNativePageInternal(previousNativePage); |
| } |
| |
| /** |
| * Replaces the current NativePage with a empty stand-in for a NativePage. This can be used |
| * to reduce memory pressure. |
| */ |
| public void freezeNativePage() { |
| if (mNativePage == null || mNativePage instanceof FrozenNativePage) return; |
| assert mNativePage.getView().getParent() == null : "Cannot freeze visible native page"; |
| mNativePage = FrozenNativePage.freeze(mNativePage); |
| } |
| |
| /** |
| * Hides the current {@link NativePage}, if any, and shows the {@link ContentViewCore}'s view. |
| */ |
| protected void showRenderedPage() { |
| updateTitle(); |
| |
| if (mNativePage == null) return; |
| NativePage previousNativePage = mNativePage; |
| mNativePage = null; |
| for (TabObserver observer : mObservers) observer.onContentChanged(this); |
| destroyNativePageInternal(previousNativePage); |
| } |
| |
| /** |
| * Initializes {@link Tab} with {@code webContents}. If {@code webContents} is {@code null} a |
| * new {@link WebContents} will be created for this {@link Tab}. |
| * @param webContents A {@link WebContents} object or {@code null} if one should be |
| * created. |
| * @param tabContentManager A {@link TabContentManager} instance or {@code null} if the web |
| * content will be managed/displayed manually. |
| * @param delegateFactory The {@link TabDelegateFactory} to be used for delegate creation. |
| * @param initiallyHidden Only used if {@code webContents} is {@code null}. Determines |
| * whether or not the newly created {@link WebContents} will be hidden |
| * or not. |
| * @param unfreeze Whether there should be an attempt to restore state at the end of |
| * the initialization. |
| */ |
| public final void initialize(WebContents webContents, TabContentManager tabContentManager, |
| TabDelegateFactory delegateFactory, boolean initiallyHidden, boolean unfreeze) { |
| try { |
| TraceEvent.begin("Tab.initialize"); |
| |
| mDelegateFactory = delegateFactory; |
| initializeNative(); |
| |
| RevenueStats.getInstance().tabCreated(this); |
| |
| if (AppBannerManager.isEnabled()) { |
| mAppBannerManager = mDelegateFactory.createAppBannerManager(this); |
| if (mAppBannerManager != null) addObserver(mAppBannerManager); |
| } |
| |
| mTopControlsVisibilityDelegate = |
| mDelegateFactory.createTopControlsVisibilityDelegate(this); |
| |
| // Attach the TabContentManager if we have one. This will bind this Tab's content layer |
| // to this manager. |
| // TODO(dtrainor): Remove this and move to a pull model instead of pushing the layer. |
| attachTabContentManager(tabContentManager); |
| |
| // If there is a frozen WebContents state or a pending lazy load, don't create a new |
| // WebContents. |
| if (getFrozenContentsState() != null || getPendingLoadParams() != null) { |
| if (unfreeze) unfreezeContents(); |
| return; |
| } |
| |
| boolean creatingWebContents = webContents == null; |
| if (creatingWebContents) { |
| webContents = WebContentsFactory.createWebContents(isIncognito(), initiallyHidden); |
| } |
| |
| ContentViewCore contentViewCore = ContentViewCore.fromWebContents(webContents); |
| |
| if (contentViewCore == null) { |
| initContentViewCore(webContents); |
| } else { |
| setContentViewCore(contentViewCore); |
| } |
| |
| if (!creatingWebContents && webContents.isLoadingToDifferentDocument()) { |
| didStartPageLoad(webContents.getUrl(), false); |
| } |
| } finally { |
| if (mTimestampMillis == INVALID_TIMESTAMP) { |
| mTimestampMillis = System.currentTimeMillis(); |
| } |
| |
| TraceEvent.end("Tab.initialize"); |
| } |
| } |
| |
| /** |
| * Detaches tab and related objects from an existing activity and attaches to a new one. This |
| * updates many delegates inside the tab and {@link ContentViewCore} both on java and native |
| * sides. |
| * @param activity The new activity this tab should be associated with. |
| * @param tabDelegateFactory The new delegate factory this tab should be using. |
| */ |
| public void reparentToActivity(ChromeActivity activity, TabDelegateFactory tabDelegateFactory) { |
| // TODO(yusufo): Share these calls with the construction related calls. |
| // crbug.com/590281 |
| |
| // Update and propagate for the new WindowAndroid. |
| mWindowAndroid = activity.getWindowAndroid(); |
| mContentViewCore.updateWindowAndroid(mWindowAndroid); |
| |
| // Update for the controllers that need the Compositor from the new Activity. |
| attachTabContentManager(activity.getTabContentManager()); |
| mFullscreenManager = activity.getFullscreenManager(); |
| activity.getCompositorViewHolder().prepareForTabReparenting(); |
| |
| // Update the delegate factory, then recreate and propagate all delegates. |
| mDelegateFactory = tabDelegateFactory; |
| mWebContentsDelegate = mDelegateFactory.createWebContentsDelegate(this); |
| nativeUpdateDelegates(mNativeTabAndroid, |
| mWebContentsDelegate, mDelegateFactory.createContextMenuPopulator(this)); |
| mTopControlsVisibilityDelegate = mDelegateFactory.createTopControlsVisibilityDelegate(this); |
| setInterceptNavigationDelegate(mDelegateFactory.createInterceptNavigationDelegate(this)); |
| mAppBannerManager = mDelegateFactory.createAppBannerManager(this); |
| } |
| |
| /** |
| * Attach the content layer for this tab to the given {@link TabContentManager}. |
| * @param tabContentManager {@link TabContentManager} to attach to. |
| */ |
| public void attachTabContentManager(TabContentManager tabContentManager) { |
| nativeAttachToTabContentManager(mNativeTabAndroid, tabContentManager); |
| } |
| |
| /** |
| * @return The delegate factory for testing purposes only. |
| */ |
| public TabDelegateFactory getDelegateFactory() { |
| return mDelegateFactory; |
| } |
| |
| /** |
| * Used to get a list of Android {@link View}s that represent both the normal content as well as |
| * overlays. This does not return {@link View}s for {@link NativePage}s. |
| * @param content A {@link List} that will be populated with {@link View}s that represent all of |
| * the content in this {@link Tab}. |
| */ |
| public void getAllContentViews(List<View> content) { |
| if (!isNativePage()) { |
| content.add(getView()); |
| } else if (mContentViewCore != null) { |
| content.add(mContentViewCore.getContainerView()); |
| } |
| for (int i = 0; i < mOverlayContentViewCores.size(); i++) { |
| content.add(mOverlayContentViewCores.get(i).getContainerView()); |
| } |
| } |
| |
| /** |
| * Used to get a list of {@link ContentViewCore}s that represent both the normal content as well |
| * as overlays. These are all {@link ContentViewCore}s currently showing or rendering content |
| * for this {@link Tab}. |
| * @param content A {@link List} that will be populated with {@link ContentViewCore}s currently |
| * rendering content related to this {@link Tab}. |
| */ |
| public void getAllContentViewCores(List<ContentViewCore> content) { |
| if (mContentViewCore != null) content.add(mContentViewCore); |
| for (int i = 0; i < mOverlayContentViewCores.size(); i++) { |
| content.add(mOverlayContentViewCores.get(i)); |
| } |
| } |
| |
| /** |
| * Adds a {@link ContentViewCore} to this {@link Tab} as an overlay object. |
| * If attachLayer is set, the {@link ContentViewCore} will be attached to CC layer hierarchy. |
| * This {@link ContentViewCore} will have all layout events propagated to it. |
| * This {@link ContentViewCore} can be removed via |
| * {@link #detachOverlayContentViewCore(ContentViewCore)}. |
| * @param content The {@link ContentViewCore} to attach. |
| * @param visible Whether or not to make the content visible. |
| * @param attachLayer Whether or not to attach the content view to the CC layer hierarchy. |
| */ |
| public void attachOverlayContentViewCore( |
| ContentViewCore content, boolean visible, boolean attachLayer) { |
| if (content == null) return; |
| |
| assert !mOverlayContentViewCores.contains(content); |
| mOverlayContentViewCores.add(content); |
| if (attachLayer) nativeAttachOverlayContentViewCore(mNativeTabAndroid, content, visible); |
| for (TabObserver observer : mObservers) { |
| observer.onOverlayContentViewCoreAdded(this, content); |
| } |
| } |
| |
| /** |
| * Removes a {@link ContentViewCore} overlay object from this {@link Tab}. This |
| * {@link ContentViewCore} must have previously been added via |
| * {@link #attachOverlayContentViewCore(ContentViewCore, boolean)}. |
| * @param content The {@link ContentViewCore} to detach. |
| */ |
| public void detachOverlayContentViewCore(ContentViewCore content) { |
| if (content == null) return; |
| |
| for (TabObserver observer : mObservers) { |
| observer.onOverlayContentViewCoreRemoved(this, content); |
| } |
| |
| assert mOverlayContentViewCores.contains(content); |
| mOverlayContentViewCores.remove(content); |
| |
| nativeDetachOverlayContentViewCore(mNativeTabAndroid, content); |
| } |
| |
| /** |
| * Called when a navigation begins and no navigation was in progress |
| * @param toDifferentDocument Whether this navigation will transition between |
| * documents (i.e., not a fragment navigation or JS History API call). |
| */ |
| protected void onLoadStarted(boolean toDifferentDocument) { |
| if (toDifferentDocument) mIsLoading = true; |
| for (TabObserver observer : mObservers) observer.onLoadStarted(this, toDifferentDocument); |
| } |
| |
| /** |
| * Called when a navigation completes and no other navigation is in progress. |
| */ |
| protected void onLoadStopped() { |
| // mIsLoading should only be false if this is a same-document navigation. |
| boolean toDifferentDocument = mIsLoading; |
| mIsLoading = false; |
| for (TabObserver observer : mObservers) observer.onLoadStopped(this, toDifferentDocument); |
| } |
| |
| /** |
| * Called when a page has started loading. |
| * @param validatedUrl URL being loaded. |
| * @param showingErrorPage Whether an error page is being shown. |
| */ |
| protected void didStartPageLoad(String validatedUrl, boolean showingErrorPage) { |
| mIsFullscreenWaitingForLoad = !DomDistillerUrlUtils.isDistilledPage(validatedUrl); |
| |
| if (mLoFiBarController != null) { |
| mLoFiBarController.resetLoFiPopupShownForPageLoad(); |
| } |
| |
| updateTitle(); |
| removeSadTabIfPresent(); |
| |
| clearHungRendererState(); |
| |
| if (mTabUma != null) mTabUma.onPageLoadStarted(); |
| |
| for (TabObserver observer : mObservers) observer.onPageLoadStarted(this, validatedUrl); |
| } |
| |
| /** |
| * Called when a page has finished loading. |
| */ |
| protected void didFinishPageLoad() { |
| mIsBeingRestored = false; |
| mIsTabStateDirty = true; |
| updateTitle(); |
| updateFullscreenEnabledState(); |
| if (!isNativePage()) { |
| RecordHistogram.recordBooleanHistogram( |
| "Navigation.IsMobileOptimized", mContentViewCore.getIsMobileOptimizedHint()); |
| } |
| |
| if (mTabUma != null) mTabUma.onPageLoadFinished(); |
| |
| for (TabObserver observer : mObservers) observer.onPageLoadFinished(this); |
| |
| // Handle the case where a commit or prerender swap notification failed to arrive and the |
| // enable fullscreen message was never enqueued. |
| scheduleEnableFullscreenLoadDelayIfNecessary(); |
| } |
| |
| private void scheduleEnableFullscreenLoadDelayIfNecessary() { |
| if (mIsFullscreenWaitingForLoad |
| && !mHandler.hasMessages(MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD)) { |
| mHandler.sendEmptyMessageDelayed( |
| MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD, MAX_FULLSCREEN_LOAD_DELAY_MS); |
| } |
| } |
| |
| /** |
| * @return Whether fullscreen state is waiting for the load to finish for an update. |
| */ |
| boolean isFullscreenWaitingForLoad() { |
| return mIsFullscreenWaitingForLoad; |
| } |
| |
| /** |
| * Called when a page has failed loading. |
| * @param errorCode The error code causing the page to fail loading. |
| */ |
| protected void didFailPageLoad(int errorCode) { |
| cancelEnableFullscreenLoadDelay(); |
| mIsBeingRestored = false; |
| if (mTabUma != null) mTabUma.onLoadFailed(errorCode); |
| for (TabObserver observer : mObservers) observer.onPageLoadFailed(this, errorCode); |
| updateFullscreenEnabledState(); |
| } |
| |
| private void cancelEnableFullscreenLoadDelay() { |
| mHandler.removeMessages(MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD); |
| mIsFullscreenWaitingForLoad = false; |
| } |
| |
| /** |
| * Builds the native counterpart to this class. Meant to be overridden by subclasses to build |
| * subclass native counterparts instead. Subclasses should not call this via super and instead |
| * rely on the native class to create the JNI association. |
| * |
| * TODO(dfalcantara): Make this function harder to access. |
| */ |
| public void initializeNative() { |
| if (mNativeTabAndroid == 0) nativeInit(); |
| assert mNativeTabAndroid != 0; |
| mIsInitialized = true; |
| } |
| |
| /** |
| * Creates and initializes the {@link ContentViewCore}. |
| * |
| * @param webContents The WebContents object that will be used to build the |
| * {@link ContentViewCore}. |
| */ |
| protected void initContentViewCore(WebContents webContents) { |
| ContentViewCore cvc = new ContentViewCore(mThemedApplicationContext); |
| ContentView cv = ContentView.createContentView(mThemedApplicationContext, cvc); |
| cv.setContentDescription(mThemedApplicationContext.getResources().getString( |
| R.string.accessibility_content_view)); |
| cvc.initialize(cv, cv, webContents, getWindowAndroid()); |
| setContentViewCore(cvc); |
| if (getTabModelSelector() instanceof SingleTabModelSelector) { |
| getContentViewCore().setFullscreenRequiredForOrientationLock(false); |
| } |
| } |
| |
| /** |
| * Completes the {@link ContentViewCore} specific initialization around a native WebContents |
| * pointer. {@link #getNativePage()} will still return the {@link NativePage} if there is one. |
| * All initialization that needs to reoccur after a web contents swap should be added here. |
| * <p /> |
| * NOTE: If you attempt to pass a native WebContents that does not have the same incognito |
| * state as this tab this call will fail. |
| * |
| * @param cvc The content view core that needs to be set as active view for the tab. |
| */ |
| private void setContentViewCore(ContentViewCore cvc) { |
| try { |
| TraceEvent.begin("ChromeTab.setContentViewCore"); |
| NativePage previousNativePage = mNativePage; |
| mNativePage = null; |
| destroyNativePageInternal(previousNativePage); |
| |
| mContentViewCore = cvc; |
| cvc.getContainerView().setOnHierarchyChangeListener(this); |
| cvc.getContainerView().setOnSystemUiVisibilityChangeListener(this); |
| |
| // Wrap the ContentView in a FrameLayout, which will contain both the ContentView and |
| // the InfoBarContainer. The alternative -- placing the InfoBarContainer inside the |
| // ContentView -- causes problems since then the ContentView would contain both real |
| // views (the infobars) and virtual views (the web page elements), which breaks Android |
| // accessibility. http://crbug.com/416663 |
| if (mContentViewParent != null) { |
| assert false; |
| mContentViewParent.removeAllViews(); |
| } |
| mContentViewParent = new FrameLayout(mThemedApplicationContext); |
| mContentViewParent.addView(cvc.getContainerView(), |
| new FrameLayout.LayoutParams( |
| LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); |
| |
| mWebContentsDelegate = mDelegateFactory.createWebContentsDelegate(this); |
| mWebContentsObserver = |
| new TabWebContentsObserver(mContentViewCore.getWebContents(), this); |
| |
| if (mContentViewClient != null) { |
| mContentViewCore.setContentViewClient(mContentViewClient); |
| } |
| |
| assert mNativeTabAndroid != 0; |
| nativeInitWebContents( |
| mNativeTabAndroid, mIncognito, mContentViewCore, mWebContentsDelegate, |
| new TabContextMenuPopulator(mDelegateFactory.createContextMenuPopulator(this), |
| this)); |
| |
| // In the case where restoring a Tab or showing a prerendered one we already have a |
| // valid infobar container, no need to recreate one. |
| if (mInfoBarContainer == null) { |
| // The InfoBarContainer needs to be created after the ContentView has been natively |
| // initialized. |
| mInfoBarContainer = new InfoBarContainer( |
| mThemedApplicationContext, getId(), mContentViewParent, this); |
| } else { |
| mInfoBarContainer.onParentViewChanged(getId(), mContentViewParent); |
| } |
| mInfoBarContainer.setContentViewCore(mContentViewCore); |
| |
| mSwipeRefreshHandler = new SwipeRefreshHandler(mThemedApplicationContext); |
| mSwipeRefreshHandler.setContentViewCore(mContentViewCore); |
| |
| for (TabObserver observer : mObservers) observer.onContentChanged(this); |
| |
| // For browser tabs, we want to set accessibility focus to the page |
| // when it loads. This is not the default behavior for embedded |
| // web views. |
| mContentViewCore.setShouldSetAccessibilityFocusOnPageLoad(true); |
| |
| mDownloadDelegate = new ChromeDownloadDelegate( |
| mThemedApplicationContext, getTabModelSelector(), this); |
| cvc.setDownloadDelegate(mDownloadDelegate); |
| |
| setInterceptNavigationDelegate(mDelegateFactory.createInterceptNavigationDelegate( |
| this)); |
| |
| if (mGestureStateListener == null) { |
| mGestureStateListener = createGestureStateListener(); |
| } |
| cvc.addGestureStateListener(mGestureStateListener); |
| } finally { |
| TraceEvent.end("ChromeTab.setContentViewCore"); |
| } |
| } |
| |
| /** |
| * Shows a native page for url if it's a valid chrome-native URL. Otherwise, does nothing. |
| * @param url The url of the current navigation. |
| * @param isReload Whether the current navigation is a reload. |
| * @return True, if a native page was displayed for url. |
| */ |
| boolean maybeShowNativePage(String url, boolean isReload) { |
| NativePage candidateForReuse = isReload ? null : getNativePage(); |
| NativePage nativePage = NativePageFactory.createNativePageForURL(url, candidateForReuse, |
| this, getTabModelSelector(), getActivity()); |
| if (nativePage != null) { |
| showNativePage(nativePage); |
| notifyPageTitleChanged(); |
| notifyFaviconChanged(); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Update internal Tab state when provisional load gets committed. |
| * @param url The URL that was loaded. |
| * @param transitionType The transition type to the current URL. |
| */ |
| void handleDidCommitProvisonalLoadForFrame(String url, int transitionType) { |
| mIsNativePageCommitPending = false; |
| boolean isReload = (transitionType == PageTransition.RELOAD); |
| if (!maybeShowNativePage(url, isReload)) { |
| showRenderedPage(); |
| } |
| |
| mHandler.removeMessages(MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD); |
| mHandler.sendEmptyMessageDelayed( |
| MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD, MAX_FULLSCREEN_LOAD_DELAY_MS); |
| updateFullscreenEnabledState(); |
| |
| if (getInterceptNavigationDelegate() != null) { |
| getInterceptNavigationDelegate().maybeUpdateNavigationHistory(); |
| } |
| } |
| |
| /** |
| * Constructs and shows a sad tab (Aw, Snap!). |
| */ |
| protected void showSadTab() { |
| if (getContentViewCore() != null) { |
| OnClickListener suggestionAction = new OnClickListener() { |
| @Override |
| public void onClick(View view) { |
| Activity activity = mWindowAndroid.getActivity().get(); |
| assert activity != null; |
| HelpAndFeedback.getInstance(activity).show(activity, |
| activity.getString(R.string.help_context_sad_tab), |
| Profile.getLastUsedProfile(), null); |
| } |
| }; |
| OnClickListener reloadButtonAction = new OnClickListener() { |
| @Override |
| public void onClick(View view) { |
| reload(); |
| } |
| }; |
| |
| // Make sure we are not adding the "Aw, snap" view over an existing one. |
| assert mSadTabView == null; |
| mSadTabView = SadTabViewFactory.createSadTabView( |
| mThemedApplicationContext, suggestionAction, reloadButtonAction); |
| |
| // Show the sad tab inside ContentView. |
| getContentViewCore().getContainerView().addView( |
| mSadTabView, new FrameLayout.LayoutParams( |
| LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); |
| for (TabObserver observer : mObservers) observer.onContentChanged(this); |
| } |
| FullscreenManager fullscreenManager = getFullscreenManager(); |
| if (fullscreenManager != null) { |
| fullscreenManager.setPositionsForTabToNonFullscreen(); |
| } |
| } |
| |
| /** |
| * Removes the sad tab view if present. |
| */ |
| private void removeSadTabIfPresent() { |
| if (isShowingSadTab()) { |
| getContentViewCore().getContainerView().removeView(mSadTabView); |
| for (TabObserver observer : mObservers) observer.onContentChanged(this); |
| } |
| mSadTabView = null; |
| } |
| |
| /** |
| * @return Whether or not the sad tab is showing. |
| */ |
| public boolean isShowingSadTab() { |
| return mSadTabView != null && getContentViewCore() != null |
| && mSadTabView.getParent() == getContentViewCore().getContainerView(); |
| } |
| |
| /** |
| * Cleans up all internal state, destroying any {@link NativePage} or {@link ContentViewCore} |
| * currently associated with this {@link Tab}. This also destroys the native counterpart |
| * to this class, which means that all subclasses should erase their native pointers after |
| * this method is called. Once this call is made this {@link Tab} should no longer be used. |
| */ |
| public void destroy() { |
| mIsInitialized = false; |
| // Update the title before destroying the tab. http://b/5783092 |
| updateTitle(); |
| |
| if (mTabUma != null) mTabUma.onDestroy(); |
| |
| for (TabObserver observer : mObservers) observer.onDestroyed(this); |
| mObservers.clear(); |
| |
| NativePage currentNativePage = mNativePage; |
| mNativePage = null; |
| destroyNativePageInternal(currentNativePage); |
| destroyContentViewCore(true); |
| |
| // Destroys the native tab after destroying the ContentView but before destroying the |
| // InfoBarContainer. The native tab should be destroyed before the infobar container as |
| // destroying the native tab cleanups up any remaining infobars. The infobar container |
| // expects all infobars to be cleaned up before its own destruction. |
| assert mNativeTabAndroid != 0; |
| nativeDestroy(mNativeTabAndroid); |
| assert mNativeTabAndroid == 0; |
| |
| if (mInfoBarContainer != null) { |
| mInfoBarContainer.destroy(); |
| mInfoBarContainer = null; |
| } |
| |
| // Destroy the AppBannerManager after the InfoBarContainer because it monitors for infobar |
| // removals. |
| if (mAppBannerManager != null) { |
| mAppBannerManager.destroy(); |
| mAppBannerManager = null; |
| } |
| |
| mPreviousFullscreenTopControlsOffsetY = Float.NaN; |
| mPreviousFullscreenContentOffsetY = Float.NaN; |
| |
| mNeedsReload = false; |
| } |
| |
| /** |
| * @return Whether or not this Tab has a live native component. This will be true prior to |
| * {@link #initializeNative()} being called or after {@link #destroy()}. |
| */ |
| public boolean isInitialized() { |
| return mIsInitialized; |
| } |
| |
| /** |
| * @return The URL associated with the tab. |
| */ |
| @CalledByNative |
| public String getUrl() { |
| String url = getWebContents() != null ? getWebContents().getUrl() : ""; |
| |
| // If we have a ContentView, or a NativePage, or the url is not empty, we have a WebContents |
| // so cache the WebContent's url. If not use the cached version. |
| if (getContentViewCore() != null || getNativePage() != null || !TextUtils.isEmpty(url)) { |
| mUrl = url; |
| } |
| |
| return mUrl != null ? mUrl : ""; |
| } |
| |
| /** |
| * @return The tab title. |
| */ |
| @CalledByNative |
| public String getTitle() { |
| if (mTitle == null) updateTitle(); |
| return mTitle; |
| } |
| |
| void updateTitle() { |
| if (isFrozen()) return; |
| |
| // When restoring the tabs, the title will no longer be populated, so request it from the |
| // ContentViewCore or NativePage (if present). |
| String title = ""; |
| if (mNativePage != null) { |
| title = mNativePage.getTitle(); |
| } else if (getWebContents() != null) { |
| title = getWebContents().getTitle(); |
| } |
| updateTitle(title); |
| } |
| |
| /** |
| * Cache the title for the current page. |
| * |
| * {@link ContentViewClient#onUpdateTitle} is unreliable, particularly for navigating backwards |
| * and forwards in the history stack, so pull the correct title whenever the page changes. |
| * onUpdateTitle is only called when the title of a navigation entry changes. When the user goes |
| * back a page the navigation entry exists with the correct title, thus the title is not |
| * actually changed, and no notification is sent. |
| * @param title Title of the page. |
| */ |
| private void updateTitle(String title) { |
| if (TextUtils.equals(mTitle, title)) return; |
| |
| mIsTabStateDirty = true; |
| mTitle = title; |
| mIsTitleDirectionRtl = LocalizationUtils.getFirstStrongCharacterDirection(title) |
| == LocalizationUtils.RIGHT_TO_LEFT; |
| notifyPageTitleChanged(); |
| } |
| |
| private void notifyPageTitleChanged() { |
| RewindableIterator<TabObserver> observers = getTabObservers(); |
| while (observers.hasNext()) { |
| observers.next().onTitleUpdated(this); |
| } |
| } |
| |
| /** |
| * Notify the observers that the load progress has changed. |
| * @param progress The current percentage of progress. |
| */ |
| protected void notifyLoadProgress(int progress) { |
| for (TabObserver observer : mObservers) observer.onLoadProgressChanged(Tab.this, progress); |
| } |
| |
| private void notifyFaviconChanged() { |
| RewindableIterator<TabObserver> observers = getTabObservers(); |
| while (observers.hasNext()) { |
| observers.next().onFaviconUpdated(this, null); |
| } |
| } |
| |
| /** |
| * @return True if the tab title should be displayed from right to left. |
| */ |
| public boolean isTitleDirectionRtl() { |
| return mIsTitleDirectionRtl; |
| } |
| |
| /** |
| * @return The bitmap of the favicon scaled to 16x16dp. null if no favicon |
| * is specified or it requires the default favicon. |
| */ |
| public Bitmap getFavicon() { |
| // If we have no content or a native page, return null. |
| if (getContentViewCore() == null) return null; |
| |
| // Use the cached favicon only if the page wasn't changed. |
| if (mFavicon != null && mFaviconUrl != null && mFaviconUrl.equals(getUrl())) { |
| return mFavicon; |
| } |
| |
| return nativeGetFavicon(mNativeTabAndroid); |
| } |
| |
| /** |
| * Loads the tab if it's not loaded (e.g. because it was killed in background). |
| * This will trigger a regular load for tabs with pending lazy first load (tabs opened in |
| * background on low-memory devices). |
| * @return true iff the Tab handled the request. |
| */ |
| @CalledByNative |
| public boolean loadIfNeeded() { |
| if (getActivity() == null) { |
| Log.e(TAG, "Tab couldn't be loaded because Context was null."); |
| return false; |
| } |
| |
| if (mPendingLoadParams != null) { |
| assert isFrozen(); |
| initContentViewCore(WebContentsFactory.createWebContents(isIncognito(), isHidden())); |
| loadUrl(mPendingLoadParams); |
| mPendingLoadParams = null; |
| return true; |
| } |
| |
| restoreIfNeeded(); |
| return true; |
| } |
| |
| /** |
| * Loads a tab that was already loaded but since then was lost. This happens either when we |
| * unfreeze the tab from serialized state or when we reload a tab that crashed. In both cases |
| * the load codepath is the same (run in loadIfNecessary()) and the same caching policies of |
| * history load are used. |
| */ |
| private final void restoreIfNeeded() { |
| try { |
| TraceEvent.begin("Tab.restoreIfNeeded"); |
| if (isFrozen() && mFrozenContentsState != null) { |
| // Restore is needed for a tab that is loaded for the first time. WebContents will |
| // be restored from a saved state. |
| unfreezeContents(); |
| } else if (mNeedsReload) { |
| // Restore is needed for a tab that was previously loaded, but its renderer was |
| // killed by the oom killer. |
| mNeedsReload = false; |
| requestRestoreLoad(); |
| } else { |
| // No restore needed. |
| return; |
| } |
| |
| loadIfNecessary(); |
| mIsBeingRestored = true; |
| if (mTabUma != null) mTabUma.onRestoreStarted(); |
| } finally { |
| TraceEvent.end("Tab.restoreIfNeeded"); |
| } |
| } |
| |
| /** |
| * Issues a fake notification about the renderer being killed. |
| * |
| * @param wasOomProtected True if the renderer was protected from the OS out-of-memory killer |
| * (e.g. renderer for the currently selected tab) |
| */ |
| @VisibleForTesting |
| public void simulateRendererKilledForTesting(boolean wasOomProtected) { |
| if (mWebContentsObserver != null) { |
| mWebContentsObserver.renderProcessGone(wasOomProtected); |
| } |
| } |
| |
| /** |
| * Restores the WebContents from its saved state. This should only be called if the tab is |
| * frozen with a saved TabState, and NOT if it was frozen for a lazy load. |
| * @return Whether or not the restoration was successful. |
| */ |
| protected boolean unfreezeContents() { |
| try { |
| TraceEvent.begin("Tab.unfreezeContents"); |
| assert mFrozenContentsState != null; |
| assert getContentViewCore() == null; |
| |
| WebContents webContents = |
| mFrozenContentsState.restoreContentsFromByteBuffer(isHidden()); |
| if (webContents == null) { |
| // State restore failed, just create a new empty web contents as that is the best |
| // that can be done at this point. TODO(jcivelli) http://b/5910521 - we should show |
| // an error page instead of a blank page in that case (and the last loaded URL). |
| webContents = WebContentsFactory.createWebContents(isIncognito(), isHidden()); |
| mTabUma = new TabUma(TabCreationState.FROZEN_ON_RESTORE_FAILED); |
| mFailedToRestore = true; |
| } |
| |
| mFrozenContentsState = null; |
| initContentViewCore(webContents); |
| |
| if (mFailedToRestore) { |
| String url = TextUtils.isEmpty(mUrl) ? UrlConstants.NTP_URL : mUrl; |
| loadUrl(new LoadUrlParams(url, PageTransition.GENERATED)); |
| } |
| return !mFailedToRestore; |
| } finally { |
| TraceEvent.end("Tab.unfreezeContents"); |
| } |
| } |
| |
| /** |
| * @return Whether the unfreeze attempt from a saved tab state failed. |
| */ |
| public boolean didFailToRestore() { |
| return mFailedToRestore; |
| } |
| |
| /** |
| * @return Whether or not the tab is hidden. |
| */ |
| public boolean isHidden() { |
| return mIsHidden; |
| } |
| |
| /** |
| * @return Whether or not the tab is in the closing process. |
| */ |
| public boolean isClosing() { |
| return mIsClosing; |
| } |
| |
| /** |
| * @param closing Whether or not the tab is in the closing process. |
| */ |
| public void setClosing(boolean closing) { |
| mIsClosing = closing; |
| |
| for (TabObserver observer : mObservers) observer.onClosingStateChanged(this, closing); |
| } |
| |
| /** |
| * @return Whether the Tab needs to be reloaded. {@see #mNeedsReload} |
| */ |
| public boolean needsReload() { |
| return mNeedsReload; |
| } |
| |
| /** |
| * Set whether the Tab needs to be reloaded. {@see #mNeedsReload} |
| */ |
| protected void setNeedsReload(boolean needsReload) { |
| mNeedsReload = needsReload; |
| } |
| |
| /** |
| * @return true iff the tab is loading and an interstitial page is not showing. |
| */ |
| public boolean isLoading() { |
| return mIsLoading && !isShowingInterstitialPage(); |
| } |
| |
| /** |
| * @return true iff the tab is performing a restore page load. |
| */ |
| public boolean isBeingRestored() { |
| return mIsBeingRestored; |
| } |
| |
| /** |
| * @return The id of the tab that caused this tab to be opened. |
| */ |
| public int getParentId() { |
| return mParentId; |
| } |
| |
| /** |
| * @return Whether the tab should be grouped with its parent tab (true by default). |
| */ |
| public boolean isGroupedWithParent() { |
| return mGroupedWithParent; |
| } |
| |
| /** |
| * Sets whether the tab should be grouped with its parent tab. |
| * |
| * @param groupedWithParent The new value. |
| * @see #isGroupedWithParent |
| */ |
| public void setGroupedWithParent(boolean groupedWithParent) { |
| mGroupedWithParent = groupedWithParent; |
| } |
| |
| private void destroyNativePageInternal(NativePage nativePage) { |
| if (nativePage == null) return; |
| assert nativePage != mNativePage : "Attempting to destroy active page."; |
| |
| nativePage.destroy(); |
| } |
| |
| /** |
| * Called when the background color for the content changes. |
| * @param color The current for the background. |
| */ |
| protected void onBackgroundColorChanged(int color) { |
| for (TabObserver observer : mObservers) observer.onBackgroundColorChanged(this, color); |
| } |
| |
| /** |
| * Destroys the current {@link ContentViewCore}. |
| * @param deleteNativeWebContents Whether or not to delete the native WebContents pointer. |
| */ |
| private final void destroyContentViewCore(boolean deleteNativeWebContents) { |
| if (mContentViewCore == null) return; |
| |
| mContentViewCore.getContainerView().setOnHierarchyChangeListener(null); |
| mContentViewCore.getContainerView().setOnSystemUiVisibilityChangeListener(null); |
| if (mGestureStateListener != null) { |
| mContentViewCore.removeGestureStateListener(mGestureStateListener); |
| } |
| |
| if (mInfoBarContainer != null && mInfoBarContainer.getParent() != null) { |
| mInfoBarContainer.removeFromParentView(); |
| mInfoBarContainer.setContentViewCore(null); |
| } |
| if (mSwipeRefreshHandler != null) { |
| mSwipeRefreshHandler.setContentViewCore(null); |
| mSwipeRefreshHandler = null; |
| } |
| mContentViewParent = null; |
| mContentViewCore.destroy(); |
| mContentViewCore = null; |
| |
| mWebContentsDelegate = null; |
| |
| if (mWebContentsObserver != null) { |
| mWebContentsObserver.destroy(); |
| mWebContentsObserver = null; |
| } |
| |
| assert mNativeTabAndroid != 0; |
| nativeDestroyWebContents(mNativeTabAndroid, deleteNativeWebContents); |
| } |
| |
| /** |
| * A helper method to allow subclasses to handle the Instant support |
| * disabled event. |
| */ |
| @CalledByNative |
| private void onWebContentsInstantSupportDisabled() { |
| for (TabObserver observer : mObservers) observer.onWebContentsInstantSupportDisabled(); |
| } |
| |
| /** |
| * @return The {@link WindowAndroid} associated with this {@link Tab}. |
| */ |
| public WindowAndroid getWindowAndroid() { |
| return mWindowAndroid; |
| } |
| |
| /** |
| * @return The current {@link TabWebContentsDelegateAndroid} instance. |
| */ |
| public TabWebContentsDelegateAndroid getTabWebContentsDelegateAndroid() { |
| return mWebContentsDelegate; |
| } |
| |
| @CalledByNative |
| protected void onFaviconAvailable(Bitmap icon) { |
| if (icon == null) return; |
| String url = getUrl(); |
| boolean pageUrlChanged = !url.equals(mFaviconUrl); |
| // This method will be called multiple times if the page has more than one favicon. |
| // we are trying to use the 16x16 DP icon here, Bitmap.createScaledBitmap will return |
| // the origin bitmap if it is already 16x16 DP. |
| if (pageUrlChanged || (icon.getWidth() == mIdealFaviconSize |
| && icon.getHeight() == mIdealFaviconSize)) { |
| mFavicon = Bitmap.createScaledBitmap(icon, mIdealFaviconSize, mIdealFaviconSize, true); |
| mFaviconUrl = url; |
| } |
| |
| for (TabObserver observer : mObservers) observer.onFaviconUpdated(this, icon); |
| } |
| /** |
| * Called when the navigation entry containing the history item changed, |
| * for example because of a scroll offset or form field change. |
| */ |
| @CalledByNative |
| private void onNavEntryChanged() { |
| mIsTabStateDirty = true; |
| } |
| |
| /** |
| * Returns the SnackbarManager for the activity that owns this Tab, if any. May |
| * return null. |
| */ |
| public SnackbarManager getSnackbarManager() { |
| if (getActivity() == null) return null; |
| return getActivity().getSnackbarManager(); |
| } |
| |
| /** |
| * @return The native pointer representing the native side of this {@link Tab} object. |
| */ |
| @CalledByNative |
| private long getNativePtr() { |
| return mNativeTabAndroid; |
| } |
| |
| /** This is currently called when committing a pre-rendered page. */ |
| @VisibleForTesting |
| @CalledByNative |
| public void swapWebContents( |
| WebContents webContents, boolean didStartLoad, boolean didFinishLoad) { |
| ContentViewCore cvc = new ContentViewCore(mThemedApplicationContext); |
| ContentView cv = ContentView.createContentView(mThemedApplicationContext, cvc); |
| cv.setContentDescription(mThemedApplicationContext.getResources().getString( |
| R.string.accessibility_content_view)); |
| cvc.initialize(cv, cv, webContents, getWindowAndroid()); |
| swapContentViewCore(cvc, false, didStartLoad, didFinishLoad); |
| } |
| |
| /** |
| * Called to swap out the current view with the one passed in. |
| * |
| * @param newContentViewCore The content view that should be swapped into the tab. |
| * @param deleteOldNativeWebContents Whether to delete the native web |
| * contents of old view. |
| * @param didStartLoad Whether |
| * WebContentsObserver::DidStartProvisionalLoadForFrame() has |
| * already been called. |
| * @param didFinishLoad Whether WebContentsObserver::DidFinishLoad() has |
| * already been called. |
| */ |
| public void swapContentViewCore(ContentViewCore newContentViewCore, |
| boolean deleteOldNativeWebContents, boolean didStartLoad, boolean didFinishLoad) { |
| int originalWidth = 0; |
| int originalHeight = 0; |
| if (mContentViewCore != null) { |
| originalWidth = mContentViewCore.getViewportWidthPix(); |
| originalHeight = mContentViewCore.getViewportHeightPix(); |
| mContentViewCore.onHide(); |
| } |
| destroyContentViewCore(deleteOldNativeWebContents); |
| NativePage previousNativePage = mNativePage; |
| mNativePage = null; |
| setContentViewCore(newContentViewCore); |
| // Size of the new ContentViewCore is zero at this point. If we don't call onSizeChanged(), |
| // next onShow() call would send a resize message with the current ContentViewCore size |
| // (zero) to the renderer process, although the new size will be set soon. |
| // However, this size fluttering may confuse Blink and rendered result can be broken |
| // (see http://crbug.com/340987). |
| mContentViewCore.onSizeChanged(originalWidth, originalHeight, 0, 0); |
| mContentViewCore.onShow(); |
| mContentViewCore.attachImeAdapter(); |
| |
| // If the URL has already committed (e.g. prerendering), tell process management logic that |
| // it can rely on the process visibility signal for binding management. |
| // TODO: Call ChildProcessLauncher#determinedVisibility() at a more intuitive time. |
| // See crbug.com/537671 |
| if (!mContentViewCore.getWebContents().getLastCommittedUrl().equals("")) { |
| ChildProcessLauncher.determinedVisibility(mContentViewCore.getCurrentRenderProcessId()); |
| } |
| |
| destroyNativePageInternal(previousNativePage); |
| mWebContentsObserver.didChangeThemeColor( |
| getWebContents().getThemeColor(mDefaultThemeColor)); |
| for (TabObserver observer : mObservers) { |
| observer.onWebContentsSwapped(this, didStartLoad, didFinishLoad); |
| } |
| } |
| |
| /** Requests the app banner. This method is called from the DevTools. */ |
| protected boolean requestAppBanner() { |
| if (mAppBannerManager == null) return false; |
| mAppBannerManager.requestAppBanner(); |
| return true; |
| } |
| |
| @CalledByNative |
| private void clearNativePtr() { |
| assert mNativeTabAndroid != 0; |
| mNativeTabAndroid = 0; |
| } |
| |
| @CalledByNative |
| private void setNativePtr(long nativePtr) { |
| assert mNativeTabAndroid == 0; |
| mNativeTabAndroid = nativePtr; |
| } |
| |
| /** |
| * @return Whether the TabState representing this Tab has been updated. |
| */ |
| public boolean isTabStateDirty() { |
| return mIsTabStateDirty; |
| } |
| |
| /** |
| * Set whether the TabState representing this Tab has been updated. |
| * @param isDirty Whether the Tab's state has changed. |
| */ |
| public void setIsTabStateDirty(boolean isDirty) { |
| mIsTabStateDirty = isDirty; |
| } |
| |
| /** |
| * @return Whether the Tab should be preserved in Android's Recents list when users hit "back". |
| */ |
| public boolean shouldPreserve() { |
| return mShouldPreserve; |
| } |
| |
| /** |
| * Sets whether the Tab should be preserved in Android's Recents list when users hit "back". |
| * @param preserve Whether the tab should be preserved. |
| */ |
| public void setShouldPreserve(boolean preserve) { |
| mShouldPreserve = preserve; |
| } |
| |
| /** |
| * @return Parameters that should be used for a lazily loaded Tab. May be null. |
| */ |
| private LoadUrlParams getPendingLoadParams() { |
| return mPendingLoadParams; |
| } |
| |
| /** |
| * @param params Parameters that should be used for a lazily loaded Tab. |
| */ |
| private void setPendingLoadParams(LoadUrlParams params) { |
| mPendingLoadParams = params; |
| mUrl = params.getUrl(); |
| } |
| |
| /** |
| * @see #setAppAssociatedWith(String) for more information. |
| * TODO(aurimas): investigate reducing the visibility of this method after TabModel refactoring. |
| * |
| * @return The id of the application associated with that tab (null if not |
| * associated with an app). |
| */ |
| public String getAppAssociatedWith() { |
| return mAppAssociatedWith; |
| } |
| |
| /** |
| * Associates this tab with the external app with the specified id. Once a Tab is associated |
| * with an app, it is reused when a new page is opened from that app (unless the user typed in |
| * the location bar or in the page, in which case the tab is dissociated from any app) |
| * TODO(aurimas): investigate reducing the visibility of this method after TabModel refactoring. |
| * |
| * @param appId The ID of application associated with the tab. |
| */ |
| public void setAppAssociatedWith(String appId) { |
| mAppAssociatedWith = appId; |
| } |
| |
| /** |
| * @return See {@link #mTimestampMillis}. |
| */ |
| private long getTimestampMillis() { |
| return mTimestampMillis; |
| } |
| |
| /** |
| * Restores a tab either frozen or from state. |
| * TODO(aurimas): investigate reducing the visibility of this method after TabModel refactoring. |
| */ |
| public void createHistoricalTab() { |
| if (!isFrozen()) { |
| nativeCreateHistoricalTab(mNativeTabAndroid); |
| } else if (mFrozenContentsState != null) { |
| mFrozenContentsState.createHistoricalTab(); |
| } |
| } |
| |
| /** |
| * @return The reason the Tab was launched. |
| */ |
| public TabLaunchType getLaunchType() { |
| return mLaunchType; |
| } |
| |
| /** |
| * @return true iff the tab doesn't hold a live page. This happens before initialize() and when |
| * the tab holds frozen WebContents state that is yet to be inflated. |
| */ |
| @VisibleForTesting |
| public boolean isFrozen() { |
| return getNativePage() == null && getContentViewCore() == null; |
| } |
| |
| /** |
| * @return An instance of a {@link FullscreenManager}. |
| */ |
| protected FullscreenManager getFullscreenManager() { |
| return mFullscreenManager; |
| } |
| |
| /** |
| * Clears hung renderer state. |
| */ |
| private void clearHungRendererState() { |
| if (mFullscreenManager == null) return; |
| |
| mFullscreenManager.hideControlsPersistent(mFullscreenHungRendererToken); |
| mFullscreenHungRendererToken = FullscreenManager.INVALID_TOKEN; |
| updateFullscreenEnabledState(); |
| } |
| |
| /** |
| * Called when offset values related with fullscreen functionality has been changed by the |
| * compositor. |
| * @param topControlsOffsetY The Y offset of the top controls in physical pixels. |
| * @param contentOffsetY The Y offset of the content in physical pixels. |
| * @param isNonFullscreenPage Whether a current page is non-fullscreen page or not. |
| */ |
| private void onOffsetsChanged(float topControlsOffsetY, float contentOffsetY, |
| boolean isNonFullscreenPage) { |
| mPreviousFullscreenTopControlsOffsetY = topControlsOffsetY; |
| mPreviousFullscreenContentOffsetY = contentOffsetY; |
| |
| if (mFullscreenManager == null) return; |
| if (isNonFullscreenPage || isNativePage()) { |
| mFullscreenManager.setPositionsForTabToNonFullscreen(); |
| } else { |
| mFullscreenManager.setPositionsForTab(topControlsOffsetY, contentOffsetY); |
| } |
| TabModelImpl.setActualTabSwitchLatencyMetricRequired(); |
| } |
| |
| /** |
| * Push state about whether or not the top controls can show or hide to the renderer. |
| */ |
| public void updateFullscreenEnabledState() { |
| if (isFrozen()) return; |
| |
| updateTopControlsState(getTopControlsStateConstraints(), TopControlsState.BOTH, true); |
| |
| if (getContentViewCore() != null && mFullscreenManager != null) { |
| getContentViewCore().updateMultiTouchZoomSupport( |
| !mFullscreenManager.getPersistentFullscreenMode()); |
| } |
| } |
| |
| /** |
| * Updates the top controls state for this tab. As these values are set at the renderer |
| * level, there is potential for this impacting other tabs that might share the same |
| * process. |
| * |
| * @param constraints The constraints that determine whether the controls can be shown |
| * or hidden at all. |
| * @param current The desired current state for the controls. Pass |
| * {@link TopControlsState#BOTH} to preserve the current position. |
| * @param animate Whether the controls should animate to the specified ending condition or |
| * should jump immediately. |
| */ |
| protected void updateTopControlsState(int constraints, int current, boolean animate) { |
| if (mNativeTabAndroid == 0) return; |
| nativeUpdateTopControlsState(mNativeTabAndroid, constraints, current, animate); |
| } |
| |
| /** |
| * Updates the top controls state for this tab. As these values are set at the renderer |
| * level, there is potential for this impacting other tabs that might share the same |
| * process. |
| * |
| * @param current The desired current state for the controls. Pass |
| * {@link TopControlsState#BOTH} to preserve the current position. |
| * @param animate Whether the controls should animate to the specified ending condition or |
| * should jump immediately. |
| */ |
| public void updateTopControlsState(int current, boolean animate) { |
| int constraints = getTopControlsStateConstraints(); |
| // Do nothing if current and constraints conflict to avoid error in |
| // renderer. |
| if ((constraints == TopControlsState.HIDDEN && current == TopControlsState.SHOWN) |
| || (constraints == TopControlsState.SHOWN && current == TopControlsState.HIDDEN)) { |
| return; |
| } |
| updateTopControlsState(getTopControlsStateConstraints(), current, animate); |
| } |
| |
| /** |
| * @return Whether hiding top controls is enabled or not. |
| */ |
| private boolean isHidingTopControlsEnabled() { |
| return mTopControlsVisibilityDelegate.isHidingTopControlsEnabled(); |
| } |
| |
| /** |
| * Performs any subclass-specific tasks when the Tab crashes. |
| */ |
| void handleTabCrash() { |
| mIsLoading = false; |
| mIsBeingRestored = false; |
| |
| if (mTabUma != null) mTabUma.onRendererCrashed(); |
| |
| if (!TextUtils.equals("true", VariationsAssociatedData.getVariationParamValue( |
| MinidumpDirectoryObserver.MINIDUMP_EXPERIMENT_NAME, "Enabled"))) { |
| try { |
| // Update the most recent minidump file with the logcat. Doing this asynchronously |
| // adds a race condition in the case of multiple simultaneously renderer crashses |
| // but because the data will be the same for all of them it is innocuous. We can |
| // attempt to do this regardless of whether it was a foreground tab in the event |
| // that it's a real crash and not just android killing the tab. |
| Context context = getApplicationContext(); |
| Intent intent = MinidumpUploadService.createFindAndUploadLastCrashIntent(context); |
| context.startService(intent); |
| RecordUserAction.record("MobileBreakpadUploadAttempt"); |
| } catch (SecurityException e) { |
| // For KitKat and below, there was a framework bug which cause us to not be able to |
| // find our own crash uploading service. Ignore a SecurityException here on older |
| // OS versions since the crash will eventually get uploaded on next start. |
| // crbug/542533 |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { |
| throw e; |
| } |
| } |
| } |
| } |
| |
| /** |
| * @return Whether showing top controls is enabled or not. |
| */ |
| public boolean isShowingTopControlsEnabled() { |
| return mTopControlsVisibilityDelegate.isShowingTopControlsEnabled(); |
| } |
| |
| /** |
| * @return The current visibility constraints for the display of top controls. |
| * {@link TopControlsState} defines the valid return options. |
| */ |
| public int getTopControlsStateConstraints() { |
| boolean enableHidingTopControls = isHidingTopControlsEnabled(); |
| boolean enableShowingTopControls = isShowingTopControlsEnabled(); |
| |
| int constraints = TopControlsState.BOTH; |
| if (!enableShowingTopControls) { |
| constraints = TopControlsState.HIDDEN; |
| } else if (!enableHidingTopControls) { |
| constraints = TopControlsState.SHOWN; |
| } |
| return constraints; |
| } |
| |
| /** |
| * @param manager The fullscreen manager that should be notified of changes to this tab (if |
| * set to null, no more updates will come from this tab). |
| */ |
| public void setFullscreenManager(FullscreenManager manager) { |
| mFullscreenManager = manager; |
| if (mFullscreenManager != null) { |
| if (Float.isNaN(mPreviousFullscreenTopControlsOffsetY) |
| || Float.isNaN(mPreviousFullscreenContentOffsetY)) { |
| mFullscreenManager.setPositionsForTabToNonFullscreen(); |
| } else { |
| mFullscreenManager.setPositionsForTab( |
| mPreviousFullscreenTopControlsOffsetY, mPreviousFullscreenContentOffsetY); |
| } |
| mFullscreenManager.showControlsTransient(); |
| updateFullscreenEnabledState(); |
| } |
| } |
| |
| /** |
| * Add a new navigation entry for the current URL and page title. |
| */ |
| void pushNativePageStateToNavigationEntry() { |
| assert mNativeTabAndroid != 0 && getNativePage() != null; |
| nativeSetActiveNavigationEntryTitleForUrl(mNativeTabAndroid, getNativePage().getUrl(), |
| getNativePage().getTitle()); |
| } |
| |
| @Override |
| public void onChildViewRemoved(View parent, View child) { |
| FullscreenManager fullscreenManager = getFullscreenManager(); |
| if (fullscreenManager != null) { |
| fullscreenManager.updateContentViewChildrenState(); |
| } |
| } |
| |
| @Override |
| public void onChildViewAdded(View parent, View child) { |
| FullscreenManager fullscreenManager = getFullscreenManager(); |
| if (fullscreenManager != null) { |
| fullscreenManager.updateContentViewChildrenState(); |
| } |
| } |
| |
| @Override |
| public void onSystemUiVisibilityChange(int visibility) { |
| FullscreenManager fullscreenManager = getFullscreenManager(); |
| if (fullscreenManager != null) { |
| fullscreenManager.onContentViewSystemUiVisibilityChange(visibility); |
| } |
| } |
| |
| /** |
| * @return The ID of the bookmark associated with the current URL, or |
| * {@link #INVALID_BOOKMARK_ID} if no such bookmark exists. |
| */ |
| public long getBookmarkId() { |
| return isFrozen() ? INVALID_BOOKMARK_ID : nativeGetBookmarkId(mNativeTabAndroid, false); |
| } |
| |
| /** |
| * Same as getBookmarkId() but never returns ids for managed bookmarks, or any other bookmarks |
| * that can't be edited by the user. |
| */ |
| public long getUserBookmarkId() { |
| return isFrozen() ? INVALID_BOOKMARK_ID : nativeGetBookmarkId(mNativeTabAndroid, true); |
| } |
| |
| /** |
| * @return Whether an offline copy of this tab's URL exists. |
| */ |
| public boolean hasOfflineCopy() { |
| return isFrozen() ? false : nativeHasOfflineCopy(mNativeTabAndroid); |
| } |
| |
| /** |
| * @return True if the offline page is opened. |
| */ |
| public boolean isOfflinePage() { |
| return isFrozen() ? false : nativeIsOfflinePage(mNativeTabAndroid); |
| } |
| |
| /** |
| * @return Url of the original page, if tab currently displays offline copy of it, |
| * <code>null</code> otherwise. |
| */ |
| public String getOfflinePageOriginalUrl() { |
| return isFrozen() ? null : nativeGetOfflinePageOriginalUrl(mNativeTabAndroid); |
| } |
| |
| /** |
| * Shows the list of offline pages. This should only be hit when offline pages feature is |
| * enabled. |
| */ |
| @CalledByNative |
| public void showOfflinePages() { |
| // The offline pages filter view will be loaded by default when offline. |
| BookmarkUtils.showBookmarkManager(getActivity()); |
| } |
| |
| /** |
| * If a Lo-Fi snackbar has not been shown yet for this page load, a Lo-Fi snackbar is shown. |
| * |
| * @param isPreview Whether the Lo-Fi response was a preview response. |
| */ |
| @CalledByNative |
| public void onLoFiResponseReceived(boolean isPreview) { |
| if (mLoFiBarController != null) { |
| mLoFiBarController.maybeCreateLoFiBar(this, isPreview); |
| } |
| } |
| |
| /** |
| * Request that this tab receive focus. Currently, this function requests focus for the main |
| * View (usually a ContentView). |
| */ |
| public void requestFocus() { |
| View view = getView(); |
| if (view != null) view.requestFocus(); |
| } |
| |
| @CalledByNative |
| protected void openNewTab(String url, String extraHeaders, byte[] postData, int disposition, |
| boolean hasParent, boolean isRendererInitiated) { |
| if (isClosing()) return; |
| |
| boolean incognito = isIncognito(); |
| TabLaunchType tabLaunchType = TabLaunchType.FROM_LONGPRESS_FOREGROUND; |
| Tab parentTab = hasParent ? this : null; |
| |
| switch (disposition) { |
| case WindowOpenDisposition.NEW_WINDOW: // fall through |
| case WindowOpenDisposition.NEW_FOREGROUND_TAB: |
| break; |
| case WindowOpenDisposition.NEW_POPUP: // fall through |
| case WindowOpenDisposition.NEW_BACKGROUND_TAB: |
| tabLaunchType = TabLaunchType.FROM_LONGPRESS_BACKGROUND; |
| break; |
| case WindowOpenDisposition.OFF_THE_RECORD: |
| assert incognito; |
| incognito = true; |
| break; |
| default: |
| assert false; |
| } |
| |
| // If shouldIgnoreNewTab returns true, the intent is handled by another |
| // activity. As a result, don't launch a new tab to open the URL. If TabModelSelector |
| // is not accessible, then we can't open a new tab. |
| if (shouldIgnoreNewTab(url, incognito) || getTabModelSelector() == null) return; |
| |
| LoadUrlParams loadUrlParams = new LoadUrlParams(url); |
| loadUrlParams.setVerbatimHeaders(extraHeaders); |
| loadUrlParams.setPostData(postData); |
| loadUrlParams.setIsRendererInitiated(isRendererInitiated); |
| getTabModelSelector().openNewTab( |
| loadUrlParams, tabLaunchType, parentTab, incognito); |
| } |
| |
| /** |
| * @return True if the Tab should block the creation of new tabs via {@link #openNewTab}. |
| */ |
| private boolean shouldIgnoreNewTab(String url, boolean incognito) { |
| InterceptNavigationDelegateImpl delegate = getInterceptNavigationDelegate(); |
| return delegate != null && delegate.shouldIgnoreNewTab(url, incognito); |
| } |
| |
| /** |
| * See {@link #mInterceptNavigationDelegate}. |
| */ |
| public InterceptNavigationDelegateImpl getInterceptNavigationDelegate() { |
| return mInterceptNavigationDelegate; |
| } |
| |
| @VisibleForTesting |
| public AuthenticatorNavigationInterceptor getAuthenticatorHelper() { |
| return getInterceptNavigationDelegate().getAuthenticatorNavigationInterceptor(); |
| } |
| |
| /** |
| * See {@link #mInterceptNavigationDelegate}. |
| */ |
| @VisibleForTesting |
| protected void setInterceptNavigationDelegate(InterceptNavigationDelegateImpl delegate) { |
| mInterceptNavigationDelegate = delegate; |
| nativeSetInterceptNavigationDelegate(mNativeTabAndroid, delegate); |
| } |
| |
| /** |
| * @return the TabRedirectHandler for the tab. |
| */ |
| public TabRedirectHandler getTabRedirectHandler() { |
| return mTabRedirectHandler; |
| } |
| |
| /** |
| * @return the AppBannerManager. |
| */ |
| @VisibleForTesting |
| public AppBannerManager getAppBannerManagerForTesting() { |
| return mAppBannerManager; |
| } |
| |
| @VisibleForTesting |
| public boolean hasPrerenderedUrl(String url) { |
| return nativeHasPrerenderedUrl(mNativeTabAndroid, url); |
| } |
| |
| /** |
| * @return the UMA object for the tab. Note that this may be null in some |
| * cases. |
| */ |
| public TabUma getTabUma() { |
| return mTabUma; |
| } |
| |
| /** |
| * @return The most recently used rank for this tab in the given TabModel. |
| */ |
| private static int computeMRURank(Tab tab, TabModel model) { |
| final long tabLastShow = tab.getTabUma().getLastShownTimestamp(); |
| int mruRank = 0; |
| for (int i = 0; i < model.getCount(); i++) { |
| Tab otherTab = model.getTabAt(i); |
| if (otherTab != tab && otherTab.getTabUma() != null |
| && otherTab.getTabUma().getLastShownTimestamp() > tabLastShow) { |
| mruRank++; |
| } |
| } |
| return mruRank; |
| } |
| |
| /** |
| * Sets the Intent that can be fired to restart the Activity of this Tab's parent. |
| * Should only be called if the Tab was launched via a different Activity. |
| */ |
| public void setParentIntent(Intent parentIntent) { |
| mParentIntent = parentIntent; |
| } |
| |
| /** |
| * @return Intent that can be fired to restart the parent Activity. |
| */ |
| protected Intent getParentIntent() { |
| return mParentIntent; |
| } |
| |
| /** |
| * Creates a new, "frozen" tab from a saved state. This can be used for background tabs restored |
| * on cold start that should be loaded when switched to. initialize() needs to be called |
| * afterwards to complete the second level initialization. |
| */ |
| public static Tab createFrozenTabFromState( |
| int id, ChromeActivity activity, boolean incognito, |
| WindowAndroid nativeWindow, int parentId, TabState state) { |
| assert state != null; |
| return new Tab(id, parentId, incognito, activity, nativeWindow, |
| TabLaunchType.FROM_RESTORE, TabCreationState.FROZEN_ON_RESTORE, state); |
| } |
| |
| /** |
| * Creates a new tab to be loaded lazily. This can be used for tabs opened in the background |
| * that should be loaded when switched to. initialize() needs to be called afterwards to |
| * complete the second level initialization. |
| */ |
| public static Tab createTabForLazyLoad(ChromeActivity activity, boolean incognito, |
| WindowAndroid nativeWindow, TabLaunchType type, int parentId, |
| LoadUrlParams loadUrlParams) { |
| Tab tab = new Tab( |
| INVALID_TAB_ID, parentId, incognito, activity, nativeWindow, type, |
| TabCreationState.FROZEN_FOR_LAZY_LOAD, null); |
| tab.setPendingLoadParams(loadUrlParams); |
| return tab; |
| } |
| |
| /** |
| * Creates a fresh tab. initialize() needs to be called afterwards to complete the second level |
| * initialization. |
| * @param initiallyHidden true iff the tab being created is initially in background |
| */ |
| public static Tab createLiveTab(int id, ChromeActivity activity, boolean incognito, |
| WindowAndroid nativeWindow, TabLaunchType type, int parentId, boolean initiallyHidden) { |
| return new Tab(id, parentId, incognito, activity, nativeWindow, type, initiallyHidden |
| ? TabCreationState.LIVE_IN_BACKGROUND |
| : TabCreationState.LIVE_IN_FOREGROUND, null); |
| } |
| |
| /** |
| * @return Whether the theme color for this tab is the default color. |
| */ |
| public boolean isDefaultThemeColor() { |
| return isNativePage() || mDefaultThemeColor == getThemeColor(); |
| } |
| |
| /** |
| * @return The default theme color for this tab. |
| */ |
| int getDefaultThemeColor() { |
| return mDefaultThemeColor; |
| } |
| |
| /** |
| * @return Intent that tells Chrome to bring an Activity for a particular Tab back to the |
| * foreground, or null if this isn't possible. |
| */ |
| public static Intent createBringTabToFrontIntent(int tabId) { |
| // Iterate through all {@link CustomTab}s and check whether the given tabId belongs to a |
| // {@link CustomTab}. If so, return null as the client app's task cannot be foregrounded. |
| List<WeakReference<Activity>> list = ApplicationStatus.getRunningActivities(); |
| for (WeakReference<Activity> ref : list) { |
| Activity activity = ref.get(); |
| if (activity instanceof CustomTabActivity |
| && ((CustomTabActivity) activity).getActivityTab() != null |
| && tabId == ((CustomTabActivity) activity).getActivityTab().getId()) { |
| return null; |
| } |
| } |
| |
| String packageName = ApplicationStatus.getApplicationContext().getPackageName(); |
| Intent intent = new Intent(Intent.ACTION_MAIN); |
| intent.putExtra(Browser.EXTRA_APPLICATION_ID, packageName); |
| intent.putExtra(TabOpenType.BRING_TAB_TO_FRONT.name(), tabId); |
| intent.setPackage(packageName); |
| return intent; |
| } |
| |
| /** |
| * Removes the enable fullscreen runnable from the UI queue and runs it immediately. |
| */ |
| @VisibleForTesting |
| public void processEnableFullscreenRunnableForTest() { |
| if (mHandler.hasMessages(MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD)) { |
| mHandler.removeMessages(MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD); |
| enableFullscreenAfterLoad(); |
| } |
| } |
| |
| /** |
| * Check whether the context menu download should be intercepted. |
| * |
| * @param url URL to be downloaded. |
| * @return whether the download should be intercepted. |
| */ |
| protected boolean shouldInterceptContextMenuDownload(String url) { |
| return mDownloadDelegate.shouldInterceptContextMenuDownload(url); |
| } |
| |
| void handleRendererUnresponsive() { |
| if (mFullscreenManager == null) return; |
| mFullscreenHungRendererToken = |
| mFullscreenManager.showControlsPersistentAndClearOldToken( |
| mFullscreenHungRendererToken); |
| } |
| |
| void handleRendererResponsive() { |
| if (mFullscreenManager == null) return; |
| mFullscreenManager.hideControlsPersistent(mFullscreenHungRendererToken); |
| mFullscreenHungRendererToken = FullscreenManager.INVALID_TOKEN; |
| } |
| |
| /** |
| * Reset swipe-to-refresh handler. |
| */ |
| void resetSwipeRefreshHandler() { |
| // When the dialog is visible, keeping the refresh animation active |
| // in the background is distracting and unnecessary (and likely to |
| // jank when the dialog is shown). |
| if (mSwipeRefreshHandler != null) { |
| mSwipeRefreshHandler.reset(); |
| } |
| } |
| |
| /** |
| * Stop swipe-to-refresh animation. |
| */ |
| void stopSwipeRefreshHandler() { |
| if (mSwipeRefreshHandler != null) { |
| mSwipeRefreshHandler.didStopRefreshing(); |
| } |
| } |
| |
| /** |
| * Set whether closing this Tab should return the user to the app that spawned Chrome. |
| */ |
| public void setIsAllowedToReturnToExternalApp(boolean state) { |
| mIsAllowedToReturnToExternalApp = state; |
| } |
| |
| /** |
| * @return Whether closing this Tab should return the user to the app that spawned Chrome. |
| */ |
| public boolean isAllowedToReturnToExternalApp() { |
| return mIsAllowedToReturnToExternalApp; |
| } |
| |
| /** |
| * @return Whether or not the tab was opened by an app other than Chrome. |
| */ |
| public boolean isCreatedForExternalApp() { |
| String packageName = ApplicationStatus.getApplicationContext().getPackageName(); |
| return getLaunchType() == TabLaunchType.FROM_EXTERNAL_APP |
| && !TextUtils.equals(getAppAssociatedWith(), packageName); |
| } |
| |
| private native void nativeInit(); |
| private native void nativeDestroy(long nativeTabAndroid); |
| private native void nativeInitWebContents(long nativeTabAndroid, boolean incognito, |
| ContentViewCore contentViewCore, TabWebContentsDelegateAndroid delegate, |
| ContextMenuPopulator contextMenuPopulator); |
| private native void nativeUpdateDelegates(long nativeTabAndroid, |
| TabWebContentsDelegateAndroid delegate, ContextMenuPopulator contextMenuPopulator); |
| private native void nativeDestroyWebContents(long nativeTabAndroid, boolean deleteNative); |
| private native Profile nativeGetProfileAndroid(long nativeTabAndroid); |
| private native int nativeLoadUrl(long nativeTabAndroid, String url, String extraHeaders, |
| byte[] postData, int transition, String referrerUrl, int referrerPolicy, |
| boolean isRendererInitiated, boolean shoulReplaceCurrentEntry, |
| long intentReceivedTimestamp, boolean hasUserGesture); |
| private native void nativeSetActiveNavigationEntryTitleForUrl(long nativeTabAndroid, String url, |
| String title); |
| private native boolean nativePrint(long nativeTabAndroid); |
| private native Bitmap nativeGetFavicon(long nativeTabAndroid); |
| private native void nativeCreateHistoricalTab(long nativeTabAndroid); |
| private native void nativeUpdateTopControlsState( |
| long nativeTabAndroid, int constraints, int current, boolean animate); |
| private native void nativeLoadOriginalImage(long nativeTabAndroid); |
| private native long nativeGetBookmarkId(long nativeTabAndroid, boolean onlyEditable); |
| private native boolean nativeHasOfflineCopy(long nativeTabAndroid); |
| private native boolean nativeIsOfflinePage(long nativeTabAndroid); |
| private native String nativeGetOfflinePageOriginalUrl(long nativeTabAndroid); |
| private native void nativeSetInterceptNavigationDelegate(long nativeTabAndroid, |
| InterceptNavigationDelegate delegate); |
| private native void nativeAttachToTabContentManager(long nativeTabAndroid, |
| TabContentManager tabContentManager); |
| private native void nativeAttachOverlayContentViewCore(long nativeTabAndroid, |
| ContentViewCore content, boolean visible); |
| private native void nativeDetachOverlayContentViewCore(long nativeTabAndroid, |
| ContentViewCore content); |
| private native boolean nativeHasPrerenderedUrl(long nativeTabAndroid, String url); |
| } |