Java Code Examples for org.chromium.chrome.browser.tab.Tab#getContentViewCore()

@Override
public boolean onTouchEvent(MotionEvent event) {
    if (!mFocused) {
        mGestureDetector.onTouchEvent(event);
        return true;
    }

    if (event.getActionMasked() == MotionEvent.ACTION_DOWN) mDownEventHadFocus = mFocused;

    Tab currentTab = mUrlBarDelegate.getCurrentTab();
    if (event.getAction() == MotionEvent.ACTION_DOWN && currentTab != null) {
        // Make sure to hide the current ContentView ActionBar.
        ContentViewCore viewCore = currentTab.getContentViewCore();
        if (viewCore != null) viewCore.destroySelectActionMode();
    }

    return super.onTouchEvent(event);
}
 

@Override
public void initLayoutTabFromHost(final int tabId) {
    if (getTabModelSelector() == null || getActiveLayout() == null) return;

    TabModelSelector selector = getTabModelSelector();
    Tab tab = selector.getTabById(tabId);
    if (tab == null) return;

    LayoutTab layoutTab = mTabCache.get(tabId);
    if (layoutTab == null) return;

    String url = tab.getUrl();
    boolean isNativePage = url != null && url.startsWith(UrlConstants.CHROME_NATIVE_SCHEME);
    int themeColor = tab.getThemeColor();
    boolean canUseLiveTexture =
            tab.getContentViewCore() != null && !tab.isShowingSadTab() && !isNativePage;
    layoutTab.initFromHost(tab.getBackgroundColor(), tab.shouldStall(), canUseLiveTexture,
            themeColor, ColorUtils.getTextBoxColorForToolbarBackground(
                                mContext.getResources(), tab, themeColor),
            ColorUtils.getTextBoxAlphaForToolbarBackground(tab));

    mHost.requestRender();
}
 

@Override
public void onPageLoadStarted(Tab tab, String url) {
    if (tab.getContentViewCore() == null) {
        // Nothing to do yet.
        return;
    }

    mBaseContentViewCore = tab.getContentViewCore();
    // Add Contextual Search here in case it couldn't get added in onContentChanged() due to
    // being too early in initialization of Chrome (ContextualSearchManager being null).
    updateContextualSearchHooks(mBaseContentViewCore);

    ContextualSearchManager manager = getContextualSearchManager();
    if (manager != null) {
        manager.onBasePageLoadStarted();
    }
}
 

@Override
public void onPageLoadStarted(Tab tab, String url) {
    if (tab.getContentViewCore() == null) {
        // Nothing to do yet.
        return;
    }

    mBaseContentViewCore = tab.getContentViewCore();
    // Add Contextual Search here in case it couldn't get added in onContentChanged() due to
    // being too early in initialization of Chrome (ContextualSearchManager being null).
    updateContextualSearchHooks(mBaseContentViewCore);

    ContextualSearchManager manager = getContextualSearchManager();
    if (manager != null) {
        manager.onBasePageLoadStarted();
    }
}
 

@Override
public boolean onTouchEvent(MotionEvent event) {
    if (!mFocused) {
        mGestureDetector.onTouchEvent(event);
        return true;
    }

    Tab currentTab = mUrlBarDelegate.getCurrentTab();
    if (event.getAction() == MotionEvent.ACTION_DOWN && currentTab != null) {
        // Make sure to hide the current ContentView ActionBar.
        ContentViewCore viewCore = currentTab.getContentViewCore();
        if (viewCore != null) viewCore.destroySelectActionMode();
    }

    return super.onTouchEvent(event);
}
 

private void toggleOverview() {
    Tab currentTab = getActivityTab();
    ContentViewCore contentViewCore =
            currentTab != null ? currentTab.getContentViewCore() : null;

    if (!mLayoutManager.overviewVisible()) {
        getCompositorViewHolder().hideKeyboard(new Runnable() {
            @Override
            public void run() {
                mLayoutManager.showOverview(true);
            }
        });
        if (contentViewCore != null) {
            contentViewCore.setAccessibilityState(false);
        }
    } else {
        Layout activeLayout = mLayoutManager.getActiveLayout();
        if (activeLayout instanceof StackLayout) {
            ((StackLayout) activeLayout).commitOutstandingModelState(LayoutManager.time());
        }
        if (getCurrentTabModel().getCount() != 0) {
            // Don't hide overview if current tab stack is empty()
            mLayoutManager.hideOverview(true);

            // hideOverview could change the current tab.  Update the local variables.
            currentTab = getActivityTab();
            contentViewCore = currentTab != null ? currentTab.getContentViewCore() : null;

            if (contentViewCore != null) {
                contentViewCore.setAccessibilityState(true);
            }
        }
    }
}
 

@Override
public String getUpdatedTitle(Tab tab, String defaultTitle) {
    // If content view core is null, tab does not have direct access to the favicon, and we
    // will initially show default favicon. But favicons are stored in the history database, so
    // we will fetch favicons asynchronously from database.
    boolean fetchFaviconFromHistory = tab.getContentViewCore() == null;

    String titleString = getTitleForTab(tab, defaultTitle);
    getUpdatedTitleInternal(tab, titleString, fetchFaviconFromHistory);
    if (fetchFaviconFromHistory) fetchFaviconForTab(tab);
    return titleString;
}
 

private void toggleOverview() {
    Tab currentTab = getActivityTab();
    ContentViewCore contentViewCore =
            currentTab != null ? currentTab.getContentViewCore() : null;

    if (!mLayoutManager.overviewVisible()) {
        getCompositorViewHolder().hideKeyboard(new Runnable() {
            @Override
            public void run() {
                mLayoutManager.showOverview(true);
            }
        });
        if (contentViewCore != null) {
            contentViewCore.setAccessibilityState(false);
        }
    } else {
        Layout activeLayout = mLayoutManager.getActiveLayout();
        if (activeLayout instanceof StackLayout) {
            ((StackLayout) activeLayout).commitOutstandingModelState(LayoutManager.time());
        }
        if (getCurrentTabModel().getCount() != 0) {
            // Don't hide overview if current tab stack is empty()
            mLayoutManager.hideOverview(true);

            // hideOverview could change the current tab.  Update the local variables.
            currentTab = getActivityTab();
            contentViewCore = currentTab != null ? currentTab.getContentViewCore() : null;

            if (contentViewCore != null) {
                contentViewCore.setAccessibilityState(true);
            }
        }
    }
}
 

/**
 * @return The Base Page's {@link WebContents}, or {@code null} if there is no current tab or
 *         the current tab has no {@link ContentViewCore}.
 */
WebContents getBaseWebContents() {
    Tab currentTab = mActivity.getActivityTab();
    if (currentTab == null) return null;

    ContentViewCore contentViewCore = currentTab.getContentViewCore();
    if (contentViewCore == null) return null;

    return contentViewCore.getWebContents();
}
 

/**
 * @param model The {@link TabModel} to act on.
 * @return      The currently active {@link ContentViewCore}, or {@code null} if no {@link Tab}
 *              is selected or the selected {@link Tab} has no current {@link ContentViewCore}.
 */
public static ContentViewCore getCurrentContentViewCore(TabList model) {
    Tab tab = getCurrentTab(model);
    if (tab == null) return null;

    return tab.getContentViewCore();
}
 

/**
 * @param model The {@link TabModel} to act on.
 * @return      The currently active {@link ContentViewCore}, or {@code null} if no {@link Tab}
 *              is selected or the selected {@link Tab} has no current {@link ContentViewCore}.
 */
public static ContentViewCore getCurrentContentViewCore(TabList model) {
    Tab tab = getCurrentTab(model);
    if (tab == null) return null;

    return tab.getContentViewCore();
}
 

private ContentViewCore getContentViewCore() {
    Tab tab = getActivityTab();
    if (tab == null) return null;
    return tab.getContentViewCore();
}
 

public InterceptNavigationDelegateImpl() {
    Tab tab = mActivity.getActivityTab();
    mExternalNavHandler = (tab != null && tab.getContentViewCore() != null)
            ? new ExternalNavigationHandler(tab) : null;
}
 

/**
 * Gets the base page ContentViewCore.
 * Deprecated, use getBaseWebContents instead.
 * @return The Base Page's {@link ContentViewCore}, or {@code null} if there is no current tab.
 */
@Deprecated
ContentViewCore getBaseContentView() {
    Tab currentTab = mActivity.getActivityTab();
    return currentTab != null ? currentTab.getContentViewCore() : null;
}
 

private ContentViewCore getContentViewCore() {
    Tab tab = getActivityTab();
    if (tab == null) return null;
    return tab.getContentViewCore();
}
 

/**
 * Should be called whenever the Tab's ContentViewCore changes. Removes hooks from the
 * existing ContentViewCore, if necessary and then adds hooks for the new ContentViewCore.
 * @param tab
 */
private void updateHooksForNewContentViewCore(Tab tab) {
    removeContextualSearchHooks(mBaseContentViewCore);
    mBaseContentViewCore = tab.getContentViewCore();
    updateContextualSearchHooks(mBaseContentViewCore);
}
 

/**
 * @return The Base Page's {@link ContentViewCore}, or {@code null} if there is no current tab.
 */
ContentViewCore getBaseContentView() {
    Tab currentTab = mActivity.getActivityTab();
    return currentTab != null ? currentTab.getContentViewCore() : null;
}
 

/**
 * Should be called whenever the Tab's ContentViewCore changes. Removes hooks from the
 * existing ContentViewCore, if necessary and then adds hooks for the new ContentViewCore.
 * @param tab
 */
private void updateHooksForNewContentViewCore(Tab tab) {
    removeContextualSearchHooks(mBaseContentViewCore);
    mBaseContentViewCore = tab.getContentViewCore();
    updateContextualSearchHooks(mBaseContentViewCore);
}
 

/**
 * @return The Base Page's {@link ContentViewCore}, or {@code null} if there is no current tab.
 */
ContentViewCore getBaseContentView() {
    Tab currentTab = mActivity.getActivityTab();
    return currentTab != null ? currentTab.getContentViewCore() : null;
}
 

private ContentViewCore getContentViewCore() {
    Tab tab = getActivityTab();
    if (tab == null) return null;
    return tab.getContentViewCore();
}