Java Code Examples for org.chromium.chrome.browser.tabmodel.TabModelUtils#setIndex()

/**
 * Displays the tab menu below the anchor tab.
 * @param anchorTab The tab the menu will be anchored to
 */
private void showTabMenu(StripLayoutTab anchorTab) {
    // 1. Bring the anchor tab to the foreground.
    int tabIndex = TabModelUtils.getTabIndexById(mModel, anchorTab.getId());
    TabModelUtils.setIndex(mModel, tabIndex);

    // 2. Anchor the popupMenu to the view associated with the tab
    View tabView = TabModelUtils.getCurrentTab(mModel).getView();
    mTabMenu.setAnchorView(tabView);

    // 3. Set the vertical offset to align the tab menu with bottom of the tab strip
    int verticalOffset =
            -(tabView.getHeight()
                    - (int) mContext.getResources().getDimension(R.dimen.tab_strip_height))
            - ((MarginLayoutParams) tabView.getLayoutParams()).topMargin;
    mTabMenu.setVerticalOffset(verticalOffset);

    // 4. Set the horizontal offset to align the tab menu with the right side of the tab
    int horizontalOffset = Math.round((anchorTab.getDrawX() + anchorTab.getWidth())
                                   * mContext.getResources().getDisplayMetrics().density)
            - mTabMenu.getWidth()
            - ((MarginLayoutParams) tabView.getLayoutParams()).leftMargin;
    mTabMenu.setHorizontalOffset(horizontalOffset);

    mTabMenu.show();
}
 

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void changeTabs() {
    DocumentTabModelSelector selector =
            ChromeApplication.getDocumentTabModelSelector();
    TabModel tabModel = selector.getCurrentModel();
    int currentIndex = tabModel.index();
    if (mLastScroll == ScrollDirection.LEFT) {
        if (currentIndex < tabModel.getCount() - 1) {
            TabModelUtils.setIndex(tabModel, currentIndex + 1);
        }
    } else {
        if (currentIndex > 0) {
            TabModelUtils.setIndex(tabModel, currentIndex - 1);
        }
    }
}
 

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private boolean switchToExistingTab(String url) {
    String matchPattern = CommandLine.getInstance().getSwitchValue(
            ChromeSwitches.NTP_SWITCH_TO_EXISTING_TAB);
    boolean matchByHost;
    if ("url".equals(matchPattern)) {
        matchByHost = false;
    } else if ("host".equals(matchPattern)) {
        matchByHost = true;
    } else {
        return false;
    }

    TabModel tabModel = mTabModelSelector.getModel(false);
    for (int i = tabModel.getCount() - 1; i >= 0; --i) {
        if (matchURLs(tabModel.getTabAt(i).getUrl(), url, matchByHost)) {
            TabModelUtils.setIndex(tabModel, i);
            return true;
        }
    }
    return false;
}
 

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private boolean switchToExistingTab(String url) {
    String matchPattern =
            CommandLine.getInstance().getSwitchValue(ChromeSwitches.NTP_SWITCH_TO_EXISTING_TAB);
    boolean matchByHost;
    if ("url".equals(matchPattern)) {
        matchByHost = false;
    } else if ("host".equals(matchPattern)) {
        matchByHost = true;
    } else {
        return false;
    }

    TabModel tabModel = mTabModelSelector.getModel(false);
    for (int i = tabModel.getCount() - 1; i >= 0; --i) {
        if (matchURLs(tabModel.getTabAt(i).getUrl(), url, matchByHost)) {
            TabModelUtils.setIndex(tabModel, i);
            return true;
        }
    }
    return false;
}
 

@Override
public void activateContents() {
    boolean activityIsDestroyed = false;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
        activityIsDestroyed = mTab.getActivity().isDestroyed();
    }
    if (activityIsDestroyed || !mTab.isInitialized()) {
        Log.e(TAG, "Activity destroyed before calling activateContents().  Bailing out.");
        return;
    }

    TabModel model = getTabModel();
    int index = model.indexOf(mTab);
    if (index == TabModel.INVALID_TAB_INDEX) return;
    TabModelUtils.setIndex(model, index);
    bringActivityToForeground();
}
 

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void changeTabs() {
    DocumentTabModelSelector selector =
            ChromeApplication.getDocumentTabModelSelector();
    TabModel tabModel = selector.getCurrentModel();
    int currentIndex = tabModel.index();
    if (mLastScroll == ScrollDirection.LEFT) {
        if (currentIndex < tabModel.getCount() - 1) {
            TabModelUtils.setIndex(tabModel, currentIndex + 1);
        }
    } else {
        if (currentIndex > 0) {
            TabModelUtils.setIndex(tabModel, currentIndex - 1);
        }
    }
}
 

/**
 * To be called when the transition out of the view mode is done.
 * This is currently called by the renderer when all the animation are done while hiding.
 */
public void doneHiding() {
    mIsHiding = false;
    if (mNextTabId != Tab.INVALID_TAB_ID) {
        TabModel model = mTabModelSelector.getModelForTabId(mNextTabId);
        if (model != null) {
            TabModelUtils.setIndex(model, TabModelUtils.getTabIndexById(model, mNextTabId));
        }
        mNextTabId = Tab.INVALID_TAB_ID;
    }
    mUpdateHost.doneHiding();
    if (mRenderHost != null && mRenderHost.getResourceManager() != null) {
        mRenderHost.getResourceManager().clearTintedResourceCache();
    }
}
 

@CalledByNative
private void showTab(int id) {
    Tab tab = mActivity.getTabModelSelector().getTabById(id);
    if (tab == null) {
        return;
    }
    int index = mActivity.getTabModelSelector().getModel(tab.isIncognito()).indexOf(tab);
    if (index == TabModel.INVALID_TAB_INDEX) {
        return;
    }
    TabModelUtils.setIndex(mActivity.getTabModelSelector().getModel(tab.isIncognito()), index);
}
 

/**
 * To be called when the transition out of the view mode is done.
 * This is currently called by the renderer when all the animation are done while hiding.
 */
public void doneHiding() {
    mIsHiding = false;
    if (mNextTabId != Tab.INVALID_TAB_ID) {
        TabModel model = mTabModelSelector.getModelForTabId(mNextTabId);
        if (model != null) {
            TabModelUtils.setIndex(model, TabModelUtils.getTabIndexById(model, mNextTabId));
        }
        mNextTabId = Tab.INVALID_TAB_ID;
    }
    mUpdateHost.doneHiding();
    if (mRenderHost != null && mRenderHost.getResourceManager() != null) {
        mRenderHost.getResourceManager().clearTintedResourceCache();
    }
}
 

private void startReorderMode(long time, float currentX, float startX) {
    if (mInReorderMode) return;

    // 1. Reset the last pressed close button state.
    if (mLastPressedCloseButton != null && mLastPressedCloseButton.isPressed()) {
        mLastPressedCloseButton.setPressed(false);
    }
    mLastPressedCloseButton = null;

    // 2. Check to see if we have a valid tab to start dragging.
    mInteractingTab = getTabAtPosition(startX);
    if (mInteractingTab == null) return;

    // 3. Set initial state parameters.
    mLastReorderScrollTime = 0;
    mReorderState = REORDER_SCROLL_NONE;
    mLastReorderX = startX;
    mInReorderMode = true;

    // 4. Select this tab so that it is always in the foreground.
    TabModelUtils.setIndex(
            mModel, TabModelUtils.getTabIndexById(mModel, mInteractingTab.getId()));

    // 5. Fast expand to make sure this tab is visible. If tabs are not cascaded, the selected
    //    tab will already be visible, so there's no need to fast expand to make it visible.
    if (mShouldCascadeTabs) {
        float fastExpandDelta =
                calculateOffsetToMakeTabVisible(mInteractingTab, true, true, true);
        mScroller.startScroll(mScrollOffset, 0, (int) fastExpandDelta, 0, time,
                EXPAND_DURATION_MS);
    }

    // 6. Request an update.
    mUpdateHost.requestUpdate();
}
 

private boolean openRecentTabSnippet(SnippetArticle article) {
    TabModel tabModel = mTabModelSelector.getModel(false);
    int tabId = article.getRecentTabId();
    int tabIndex = TabModelUtils.getTabIndexById(tabModel, tabId);
    if (tabIndex == TabModel.INVALID_TAB_INDEX) return false;
    TabModelUtils.setIndex(tabModel, tabIndex);
    return true;
}
 

@Override
public void tabSelected(int tab) {
    if (mListener != null) mListener.showTab(tab);
    TabModelUtils.setIndex(mActualTabModel,
            TabModelUtils.getTabIndexById(mActualTabModel, tab));
    notifyDataSetChanged();
}
 

/**
 * Called on click. This is called before the onUpOrCancel event.
 * @param time      The current time of the app in ms.
 * @param x         The x coordinate of the position of the click.
 * @param y         The y coordinate of the position of the click.
 * @param fromMouse Whether the event originates from a mouse.
 * @param buttons   State of all buttons that were pressed when onDown was invoked.
 */
public void click(long time, float x, float y, boolean fromMouse, int buttons) {
    resetResizeTimeout(false);

    if (mNewTabButton.click(x, y) && mModel != null) {
        mTabCreator.launchNTP();
        return;
    }

    final StripLayoutTab clickedTab = getTabAtPosition(x);
    if (clickedTab == null || clickedTab.isDying()) return;
    if (clickedTab.checkCloseHitTest(x, y)
            || (fromMouse && (buttons & MotionEvent.BUTTON_TERTIARY) != 0)) {
        // 1. Start the close animation.
        startAnimation(buildTabClosedAnimation(clickedTab), true);

        // 2. Set the dying state of the tab.
        clickedTab.setIsDying(true);

        // 3. Fake a selection on the next tab now.
        Tab nextTab = mModel.getNextTabIfClosed(clickedTab.getId());
        if (nextTab != null) tabSelected(time, nextTab.getId(), clickedTab.getId());

        // 4. Find out if we're closing the last tab.  This determines if we resize immediately.
        boolean lastTab = mStripTabs.length == 0
                || mStripTabs[mStripTabs.length - 1].getId() == clickedTab.getId();

        // 5. Resize the tabs appropriately.
        resizeTabStrip(!lastTab);
    } else {
        int newIndex = TabModelUtils.getTabIndexById(mModel, clickedTab.getId());
        TabModelUtils.setIndex(mModel, newIndex);
    }
}
 

/**
 * Displays the tab menu below the anchor tab.
 * @param anchorTab The tab the menu will be anchored to
 */
private void showTabMenu(StripLayoutTab anchorTab) {
    // 1. Bring the anchor tab to the foreground.
    int tabIndex = TabModelUtils.getTabIndexById(mModel, anchorTab.getId());
    TabModelUtils.setIndex(mModel, tabIndex);

    // 2. Anchor the popupMenu to the view associated with the tab
    View tabView = TabModelUtils.getCurrentTab(mModel).getView();
    mTabMenu.setAnchorView(tabView);

    // 3. Set the vertical offset to align the tab menu with bottom of the tab strip
    int verticalOffset =
            -(tabView.getHeight()
                    - (int) mContext.getResources().getDimension(R.dimen.tab_strip_height))
            - ((MarginLayoutParams) tabView.getLayoutParams()).topMargin;
    mTabMenu.setVerticalOffset(verticalOffset);

    // 4. Set the horizontal offset to align the tab menu with the right side of the tab
    int horizontalOffset = Math.round((anchorTab.getDrawX() + anchorTab.getWidth())
                                   * mContext.getResources().getDisplayMetrics().density)
            - mTabMenu.getWidth()
            - ((MarginLayoutParams) tabView.getLayoutParams()).leftMargin;
    // Cap the horizontal offset so that the tab menu doesn't get drawn off screen.
    horizontalOffset = Math.max(horizontalOffset, 0);
    mTabMenu.setHorizontalOffset(horizontalOffset);

    mTabMenu.show();
}
 

private void startReorderMode(long time, float currentX, float startX) {
    if (mInReorderMode) return;

    // 1. Reset the last pressed close button state.
    if (mLastPressedCloseButton != null && mLastPressedCloseButton.isPressed()) {
        mLastPressedCloseButton.setPressed(false);
    }
    mLastPressedCloseButton = null;

    // 2. Check to see if we have a valid tab to start dragging.
    mInteractingTab = getTabAtPosition(startX);
    if (mInteractingTab == null) return;

    // 3. Set initial state parameters.
    mLastReorderScrollTime = 0;
    mReorderState = REORDER_SCROLL_NONE;
    mLastReorderX = startX;
    mInReorderMode = true;

    // 4. Select this tab so that it is always in the foreground.
    TabModelUtils.setIndex(
            mModel, TabModelUtils.getTabIndexById(mModel, mInteractingTab.getId()));

    // 5. Fast expand to make sure this tab is visible. If tabs are not cascaded, the selected
    //    tab will already be visible, so there's no need to fast expand to make it visible.
    if (mShouldCascadeTabs) {
        float fastExpandDelta =
                calculateOffsetToMakeTabVisible(mInteractingTab, true, true, true);
        mScroller.startScroll(mScrollOffset, 0, (int) fastExpandDelta, 0, time,
                EXPAND_DURATION_MS);
    }

    // 6. Request an update.
    mUpdateHost.requestUpdate();
}
 

@Override
public void tabSelected(int tab) {
    if (mListener != null) mListener.showTab(tab);
    TabModelUtils.setIndex(mActualTabModel,
            TabModelUtils.getTabIndexById(mActualTabModel, tab));
    notifyDataSetChanged();
}
 

@Override
public void activateContents() {
    ChromeActivity activity = mTab.getActivity();
    if (activity == null) {
        Log.e(TAG, "Activity not set activateContents().  Bailing out.");
        return;
    }
    if (activity.isActivityDestroyed()) {
        Log.e(TAG, "Activity destroyed before calling activateContents().  Bailing out.");
        return;
    }
    if (!mTab.isInitialized()) {
        Log.e(TAG, "Tab not initialized before calling activateContents().  Bailing out.");
        return;
    }

    // Do nothing if the tab can currently be interacted with by the user.
    if (mTab.isUserInteractable()) return;

    TabModel model = getTabModel();
    int index = model.indexOf(mTab);
    if (index == TabModel.INVALID_TAB_INDEX) return;
    TabModelUtils.setIndex(model, index);

    // Do nothing if the activity is visible (STOPPED is the only valid invisible state as we
    // explicitly check isActivityDestroyed above).
    if (ApplicationStatus.getStateForActivity(activity) == ActivityState.STOPPED) {
        bringActivityToForeground();
    }
}
 

@Override
public void tabSelected(int tab) {
    if (mListener != null) mListener.showTab(tab);
    TabModelUtils.setIndex(mActualTabModel,
            TabModelUtils.getTabIndexById(mActualTabModel, tab));
    notifyDataSetChanged();
}
 

/**
 * To be called when the transition out of the view mode is done.
 * This is currently called by the renderer when all the animation are done while hiding.
 */
public void doneHiding() {
    mIsHiding = false;
    if (mNextTabId != Tab.INVALID_TAB_ID) {
        TabModel model = mTabModelSelector.getModelForTabId(mNextTabId);
        if (model != null) {
            TabModelUtils.setIndex(model, TabModelUtils.getTabIndexById(model, mNextTabId));
        }
        mNextTabId = Tab.INVALID_TAB_ID;
    }
    mUpdateHost.doneHiding();
}
 

private void startReorderMode(long time, float currentX, float startX) {
    if (mInReorderMode) return;

    // 1. Reset the last pressed close button state.
    if (mLastPressedCloseButton != null && mLastPressedCloseButton.isPressed()) {
        mLastPressedCloseButton.setPressed(false);
    }
    mLastPressedCloseButton = null;

    // 2. Check to see if we have a valid tab to start dragging.
    mInteractingTab = getTabAtPosition(startX);
    if (mInteractingTab == null) return;

    // 3. Set initial state parameters.
    mLastReorderScrollTime = 0;
    mReorderState = REORDER_SCROLL_NONE;
    mLastReorderX = startX;
    mInReorderMode = true;

    // 4. Select this tab so that it is always in the foreground.
    TabModelUtils.setIndex(
            mModel, TabModelUtils.getTabIndexById(mModel, mInteractingTab.getId()));

    // 5. Fast expand to make sure this tab is visible. If tabs are not cascaded, the selected
    //    tab will already be visible, so there's no need to fast expand to make it visible.
    if (mShouldCascadeTabs) {
        float fastExpandDelta =
                calculateOffsetToMakeTabVisible(mInteractingTab, true, true, true);
        mScroller.startScroll(mScrollOffset, 0, (int) fastExpandDelta, 0, time,
                EXPAND_DURATION_MS);
    }

    // 6. Request an update.
    mUpdateHost.requestUpdate();
}