IPH - Added triggers for Download page

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarManager.java

 // Copyright 2015 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.toolbar;
 
 import android.content.Context;
 import android.content.res.Configuration;
 import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
 import android.os.SystemClock;
 import android.support.v7.app.ActionBar;
 import android.text.TextUtils;
 import android.view.View;
 import android.view.View.OnAttachStateChangeListener;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup.MarginLayoutParams;
 import android.widget.FrameLayout;
+import android.widget.PopupWindow.OnDismissListener;
 
 import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.Callback;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.VisibleForTesting;
 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.ChromeTabbedActivity;
 import org.chromium.chrome.browser.NativePage;
 import org.chromium.chrome.browser.TabLoadStatus;
 import org.chromium.chrome.browser.UrlConstants;
 import org.chromium.chrome.browser.WindowDelegate;
 import org.chromium.chrome.browser.appmenu.AppMenuButtonHelper;
 import org.chromium.chrome.browser.appmenu.AppMenuHandler;
 import org.chromium.chrome.browser.appmenu.AppMenuObserver;
 import org.chromium.chrome.browser.appmenu.AppMenuPropertiesDelegate;
 import org.chromium.chrome.browser.bookmarks.BookmarkBridge;
 import org.chromium.chrome.browser.compositor.Invalidator;
 import org.chromium.chrome.browser.compositor.layouts.EmptyOverviewModeObserver;
 import org.chromium.chrome.browser.compositor.layouts.Layout;
 import org.chromium.chrome.browser.compositor.layouts.LayoutManager;
 import org.chromium.chrome.browser.compositor.layouts.OverviewModeBehavior;
 import org.chromium.chrome.browser.compositor.layouts.OverviewModeBehavior.OverviewModeObserver;
 import org.chromium.chrome.browser.compositor.layouts.SceneChangeObserver;
+import org.chromium.chrome.browser.download.DownloadUtils;
+import org.chromium.chrome.browser.feature_engagement_tracker.FeatureEngagementTrackerFactory;
 import org.chromium.chrome.browser.fullscreen.BrowserStateBrowserControlsVisibilityDelegate;
 import org.chromium.chrome.browser.fullscreen.FullscreenManager;
 import org.chromium.chrome.browser.ntp.IncognitoNewTabPage;
 import org.chromium.chrome.browser.ntp.NativePageFactory;
 import org.chromium.chrome.browser.ntp.NewTabPage;
+import org.chromium.chrome.browser.offlinepages.OfflinePageBridge;
 import org.chromium.chrome.browser.omnibox.LocationBar;
 import org.chromium.chrome.browser.omnibox.UrlFocusChangeListener;
 import org.chromium.chrome.browser.partnercustomizations.HomepageManager;
 import org.chromium.chrome.browser.partnercustomizations.HomepageManager.HomepageStateListener;
 import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService.TemplateUrl;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService.TemplateUrlServiceObserver;
 import org.chromium.chrome.browser.tab.EmptyTabObserver;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabObserver;
 import org.chromium.chrome.browser.tabmodel.EmptyTabModelObserver;
 import org.chromium.chrome.browser.tabmodel.EmptyTabModelSelectorObserver;
 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.TabModelObserver;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
 import org.chromium.chrome.browser.tabmodel.TabModelSelectorObserver;
 import org.chromium.chrome.browser.toolbar.ActionModeController.ActionBarDelegate;
 import org.chromium.chrome.browser.widget.findinpage.FindToolbarManager;
 import org.chromium.chrome.browser.widget.findinpage.FindToolbarObserver;
+import org.chromium.chrome.browser.widget.textbubble.ViewAnchoredTextBubble;
+import org.chromium.components.feature_engagement_tracker.EventConstants;
+import org.chromium.components.feature_engagement_tracker.FeatureConstants;
+import org.chromium.components.feature_engagement_tracker.FeatureEngagementTracker;
 import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.content_public.browser.NavigationController;
 import org.chromium.content_public.browser.NavigationEntry;
 import org.chromium.content_public.browser.WebContents;
 import org.chromium.ui.UiUtils;
 import org.chromium.ui.base.DeviceFormFactor;
 import org.chromium.ui.base.PageTransition;
 
 import java.util.ArrayList;
 import java.util.List;
@@ skipping 49 matching lines @@
 
     private final TabObserver mTabObserver;
     private final BookmarkBridge.BookmarkModelObserver mBookmarksObserver;
     private final List<FindToolbarObserver> mFindToolbarObservers;
     private final OverviewModeObserver mOverviewModeObserver;
     private final SceneChangeObserver mSceneChangeObserver;
     private final ActionBarDelegate mActionBarDelegate;
     private final ActionModeController mActionModeController;
     private final LoadProgressSimulator mLoadProgressSimulator;
     private final Callback<Boolean> mUrlFocusChangedCallback;
+    private final Handler mHandler = new Handler();
 
     private BrowserStateBrowserControlsVisibilityDelegate mControlsVisibilityDelegate;
     private int mFullscreenFocusToken = FullscreenManager.INVALID_TOKEN;
     private int mFullscreenFindInPageToken = FullscreenManager.INVALID_TOKEN;
     private int mFullscreenMenuToken = FullscreenManager.INVALID_TOKEN;
     private int mFullscreenHighlightToken = FullscreenManager.INVALID_TOKEN;
 
     private int mPreselectedTabId = Tab.INVALID_TAB_ID;
 
     private boolean mNativeLibraryReady;
     private boolean mTabRestoreCompleted;
 
     private AppMenuButtonHelper mAppMenuButtonHelper;
 
+    private ViewAnchoredTextBubble mTextBubble;
+
     private HomepageStateListener mHomepageStateListener;
 
     private boolean mInitializedWithNative;
 
     private boolean mShouldUpdateTabCount = true;
     private boolean mShouldUpdateToolbarPrimaryColor = true;
 
     /**
      * Creates a ToolbarManager object.
      *
@@ skipping 167 matching lines @@
             }
 
             @Override
             public void onCrash(Tab tab, boolean sadTabShown) {
                 updateTabLoadingState(false);
                 updateButtonStatus();
                 finishLoadProgress(false);
             }
 
             @Override
+            public void onPageLoadFinished(Tab tab) {
+                if (tab.isShowingErrorPage()) {
+                    handleIPHForErrorPageShown(tab);
+                    return;
+                }
+
+                handleIPHForSuccessfulPageLoad(tab);
+            }
+
+            @Override
             public void onLoadStarted(Tab tab, boolean toDifferentDocument) {
                 if (!toDifferentDocument) return;
                 updateButtonStatus();
                 updateTabLoadingState(true);
             }
 
             @Override
             public void onLoadStopped(Tab tab, boolean toDifferentDocument) {
                 if (!toDifferentDocument) return;
                 updateTabLoadingState(true);
@@ skipping 121 matching lines @@
                 // location bar animations.
                 if (errorCode != 0 && isInMainFrame && !hasPendingNonNtpNavigation(tab)) {
                     NewTabPage ntp = mToolbarModel.getNewTabPageForCurrentTab();
                     if (ntp == null) return;
 
                     ntp.setUrlFocusAnimationsDisabled(false);
                     mToolbar.onTabOrModelChanged();
                     if (mToolbar.getProgressBar() != null) mToolbar.getProgressBar().finish(false);
                 }
             }
+
+            private void handleIPHForSuccessfulPageLoad(final Tab tab) {
+                if (mTextBubble != null) {
+                    mTextBubble.dismiss();
+                    mTextBubble = null;
+                    return;
+                }
+
+                // TODO(shaktisahu): Find out if the download menu button is enabled (crbug/712438).
+                if (!(activity instanceof ChromeTabbedActivity)
+                        || DeviceFormFactor.isTablet(mToolbar.getContext())
+                        || activity.isInOverviewMode()
+                        || !DownloadUtils.isAllowedToDownloadPage(tab)) {
+                    return;
+                }
+
+                final FeatureEngagementTracker tracker =
+                        FeatureEngagementTrackerFactory.getFeatureEngagementTrackerForProfile(
+                                tab.getProfile());
+
+                if (!tracker.shouldTriggerHelpUI(FeatureConstants.DOWNLOAD_PAGE_FEATURE)) return;
+
+                mTextBubble = new ViewAnchoredTextBubble(mToolbar.getContext(), getMenuAnchor(),
+                        R.string.iph_download_page_for_offline_usage_text);
+                mTextBubble.setDismissOnTouchInteraction(true);
+                mTextBubble.addOnDismissListener(new OnDismissListener() {
+                    @Override
+                    public void onDismiss() {
+                        mHandler.post(new Runnable() {
+                            @Override
+                            public void run() {
+                                tracker.dismissed();
+                                activity.getAppMenuHandler().setMenuHighlight(null);
+                            }
+                        });
+                    }
+                });
+                activity.getAppMenuHandler().setMenuHighlight(R.id.offline_page_id);
+                int yInsetPx = activity.getResources().getDimensionPixelOffset(
+                        R.dimen.text_bubble_menu_anchor_y_inset);
+                mTextBubble.setInsetPx(0, yInsetPx, 0, 0);
+                mTextBubble.show();
+            }
+
+            private void handleIPHForErrorPageShown(Tab tab) {
+                if (!(activity instanceof ChromeTabbedActivity)
+                        || DeviceFormFactor.isTablet(mToolbar.getContext())) {
+                    return;
+                }
+
+                OfflinePageBridge bridge = OfflinePageBridge.getForProfile(tab.getProfile());
+                if (bridge == null
+                        || !bridge.isShowingDownloadButtonInErrorPage(tab.getWebContents())) {
+                    return;
+                }
+
+                FeatureEngagementTracker tracker =
+                        FeatureEngagementTrackerFactory.getFeatureEngagementTrackerForProfile(
+                                tab.getProfile());
+                tracker.notifyEvent(EventConstants.USER_HAS_SEEN_DINO);
+            }
         };
 
         mBookmarksObserver = new BookmarkBridge.BookmarkModelObserver() {
             @Override
             public void bookmarkModelChanged() {
                 updateBookmarkButtonStatus();
             }
         };
 
         mFindToolbarObservers = new ArrayList<>();
@@ skipping 790 matching lines @@
         }
 
         /**
          * Cancels simulating load progress.
          */
         public void cancel() {
             mHandler.removeMessages(MSG_ID_UPDATE_PROGRESS);
         }
     }
 }