Java Code Examples for org.chromium.content.browser.ContentViewCore#getContainerView()

/**
 * Starts showing a context menu for {@code view} based on {@code params}.
 * @param contentViewCore The {@link ContentViewCore} to show the menu to.
 * @param params          The {@link ContextMenuParams} that indicate what menu items to show.
 */
@CalledByNative
private boolean showContextMenu(ContentViewCore contentViewCore, ContextMenuParams params) {
    final View view = contentViewCore.getContainerView();

    if (view == null
            || view.getVisibility() != View.VISIBLE
            || view.getParent() == null) {
        return false;
    }

    mCurrentContextMenuParams = params;

    view.setOnCreateContextMenuListener(this);
    if (view.showContextMenu()) {
        WebContents webContents = contentViewCore.getWebContents();
        RecordHistogram.recordBooleanHistogram(
                "ContextMenu.Shown", webContents != null);
        if (webContents != null) webContents.onContextMenuOpened();
        return true;
    }
    return false;
}
 

private boolean shouldShowAndroidControls() {
    if (mTopControlsAndroidViewHidden) return false;

    boolean showControls = getControlOffset() == 0;
    ContentViewCore contentViewCore = getActiveContentViewCore();
    if (contentViewCore == null) return showControls;
    ViewGroup contentView = contentViewCore.getContainerView();

    for (int i = 0; i < contentView.getChildCount(); i++) {
        View child = contentView.getChildAt(i);
        if (!(child.getLayoutParams() instanceof FrameLayout.LayoutParams)) continue;

        FrameLayout.LayoutParams layoutParams =
                (FrameLayout.LayoutParams) child.getLayoutParams();
        if (Gravity.TOP == (layoutParams.gravity & Gravity.FILL_VERTICAL)) {
            showControls = true;
            break;
        }
    }

    showControls |= !mPersistentControlTokens.isEmpty();

    return showControls;
}
 

/**
 * Starts showing a context menu for {@code view} based on {@code params}.
 * @param contentViewCore The {@link ContentViewCore} to show the menu to.
 * @param params          The {@link ContextMenuParams} that indicate what menu items to show.
 */
@CalledByNative
private void showContextMenu(ContentViewCore contentViewCore, ContextMenuParams params) {
    final View view = contentViewCore.getContainerView();

    if (view == null
            || view.getVisibility() != View.VISIBLE
            || view.getParent() == null) {
        return;
    }

    mCurrentContextMenuParams = params;

    view.setOnCreateContextMenuListener(this);
    if (view.showContextMenu()) {
        WebContents webContents = contentViewCore.getWebContents();
        RecordHistogram.recordBooleanHistogram(
                "ContextMenu.Shown", webContents != null);
    }
}
 

private boolean shouldShowAndroidControls() {
    if (mBrowserControlsAndroidViewHidden) return false;

    boolean showControls = !drawControlsAsTexture();
    ContentViewCore contentViewCore = getActiveContentViewCore();
    if (contentViewCore == null) return showControls;
    ViewGroup contentView = contentViewCore.getContainerView();

    for (int i = 0; i < contentView.getChildCount(); i++) {
        View child = contentView.getChildAt(i);
        if (!(child.getLayoutParams() instanceof FrameLayout.LayoutParams)) continue;

        FrameLayout.LayoutParams layoutParams =
                (FrameLayout.LayoutParams) child.getLayoutParams();
        if (Gravity.TOP == (layoutParams.gravity & Gravity.FILL_VERTICAL)) {
            showControls = true;
            break;
        }
    }

    return showControls;
}
 

private boolean shouldShowAndroidControls() {
    if (mBrowserControlsAndroidViewHidden) return false;

    boolean showControls = !drawControlsAsTexture();
    ContentViewCore contentViewCore = getActiveContentViewCore();
    if (contentViewCore == null) return showControls;
    ViewGroup contentView = contentViewCore.getContainerView();

    for (int i = 0; i < contentView.getChildCount(); i++) {
        View child = contentView.getChildAt(i);
        if (!(child.getLayoutParams() instanceof FrameLayout.LayoutParams)) continue;

        FrameLayout.LayoutParams layoutParams =
                (FrameLayout.LayoutParams) child.getLayoutParams();
        if (Gravity.TOP == (layoutParams.gravity & Gravity.FILL_VERTICAL)) {
            showControls = true;
            break;
        }
    }

    return showControls;
}
 

@Override
public void updateContentViewChildrenState() {
    ContentViewCore contentViewCore = getActiveContentViewCore();
    if (contentViewCore == null) return;
    ViewGroup view = contentViewCore.getContainerView();

    float topViewsTranslation = (getControlOffset() + mControlContainerHeight);
    applyTranslationToTopChildViews(view, topViewsTranslation);
    applyMarginToFullChildViews(view, topViewsTranslation);
    updateContentViewViewportSize(contentViewCore);
}
 

@Override
public void updateContentViewChildrenState() {
    ContentViewCore contentViewCore = getActiveContentViewCore();
    if (contentViewCore == null) return;
    ViewGroup view = contentViewCore.getContainerView();

    float topViewsTranslation = getTopVisibleContentOffset();
    applyTranslationToTopChildViews(view, topViewsTranslation);
    applyMarginToFullChildViews(view, topViewsTranslation);
    updateContentViewViewportSize(contentViewCore);
}
 

/**
 * Adjusts the physical backing size of a given ContentViewCore. This method checks
 * the associated container view to see if the size needs to be overriden, such as when used for
 * {@link OverlayPanel}.
 * @param contentViewCore The {@link ContentViewCore} to resize.
 * @param width The default width.
 * @param height The default height.
 */
private void adjustPhysicalBackingSize(ContentViewCore contentViewCore, int width, int height) {
    ContentView contentView = (ContentView) contentViewCore.getContainerView();
    if (contentView == mOverlayContentView) {
        width = MeasureSpec.getSize(mOverlayContentWidthMeasureSpec);
        height = MeasureSpec.getSize(mOverlayContentHeightMeasureSpec);
    }
    mCompositorView.onPhysicalBackingSizeChanged(
            contentViewCore.getWebContents(), width, height);
}
 

@Override
public void updateContentViewChildrenState() {
    ContentViewCore contentViewCore = getActiveContentViewCore();
    if (contentViewCore == null) return;
    ViewGroup view = contentViewCore.getContainerView();

    float topViewsTranslation = getTopVisibleContentOffset();
    applyTranslationToTopChildViews(view, topViewsTranslation);
    applyMarginToFullChildViews(view, topViewsTranslation);
    updateContentViewViewportSize(contentViewCore);
}
 

/**
 * Propagates the given {@link MotionEvent} to the {@link ContentViewCore}.
 * @param e The {@link MotionEvent} to be propagated.
 */
protected void propagateEventToContentViewCore(MotionEvent e) {
    MotionEvent event = e;
    int action = event.getActionMasked();
    boolean isSyntheticEvent = false;
    if (mGestureOrientation == GestureOrientation.HORIZONTAL && !mPanel.isMaximized()) {
        // Ignores multitouch events to prevent the Content View from scrolling.
        if (action == MotionEvent.ACTION_POINTER_UP
                || action == MotionEvent.ACTION_POINTER_DOWN) {
            return;
        }

        // NOTE(pedrosimonetti): Lock horizontal motion, ignoring all vertical changes,
        // when the Panel is not maximized. This is to prevent the Content View
        // from scrolling when side swiping on the expanded Panel. Also, note that the
        // method {@link OverlayPanelEventFilter#lockEventHorizontallty} will always
        // return an event with a single pointer, which is necessary to prevent
        // the app from crashing when the motion involves multiple pointers.
        // See: crbug.com/486901
        event = MotionEvent.obtain(
                e.getDownTime(),
                e.getEventTime(),
                // NOTE(pedrosimonetti): Use getActionMasked() to make sure we're not
                // send any pointer information to the event, given that getAction()
                // may have the pointer Id associated to it.
                e.getActionMasked(),
                e.getX(),
                mInitialEventY,
                e.getMetaState());

        isSyntheticEvent = true;
    }

    final float contentViewOffsetXPx = mPanel.getContentX() / mPxToDp;
    final float contentViewOffsetYPx = mPanel.getContentY() / mPxToDp;

    // Adjust the offset to be relative to the Content View.
    event.offsetLocation(-contentViewOffsetXPx, -contentViewOffsetYPx);

    // Get the container view to propagate the event to.
    ContentViewCore cvc = mPanel.getContentViewCore();
    ViewGroup containerView = cvc == null ? null : cvc.getContainerView();

    boolean wasEventCanceled = false;
    if (mWasActionDownEventSynthetic && action == MotionEvent.ACTION_UP) {
        float deltaX = event.getX() - mSyntheticActionDownX;
        float deltaY = event.getY() - mSyntheticActionDownY;
        // NOTE(pedrosimonetti): If the ACTION_DOWN event was synthetic and the distance
        // between it and the ACTION_UP event was short, then we should synthesize an
        // ACTION_CANCEL event to prevent a Tap gesture from being triggered on the
        // Content View. See crbug.com/408654
        if (!isDistanceGreaterThanTouchSlop(deltaX, deltaY)) {
            event.setAction(MotionEvent.ACTION_CANCEL);
            if (containerView != null) containerView.dispatchTouchEvent(event);
            wasEventCanceled = true;
        }
    } else if (action == MotionEvent.ACTION_DOWN) {
        mPanel.onTouchSearchContentViewAck();
    }

    if (!wasEventCanceled && containerView != null) containerView.dispatchTouchEvent(event);

    // Synthetic events should be recycled.
    if (isSyntheticEvent) event.recycle();
}
 

/**
 * Propagates the given {@link MotionEvent} to the {@link ContentViewCore}.
 * @param e The {@link MotionEvent} to be propagated.
 */
protected void propagateEventToContentViewCore(MotionEvent e) {
    MotionEvent event = e;
    int action = event.getActionMasked();
    boolean isSyntheticEvent = false;
    if (mGestureOrientation == GestureOrientation.HORIZONTAL && !mPanel.isMaximized()) {
        // Ignores multitouch events to prevent the Content View from scrolling.
        if (action == MotionEvent.ACTION_POINTER_UP
                || action == MotionEvent.ACTION_POINTER_DOWN) {
            return;
        }

        // NOTE(pedrosimonetti): Lock horizontal motion, ignoring all vertical changes,
        // when the Panel is not maximized. This is to prevent the Content View
        // from scrolling when side swiping on the expanded Panel. Also, note that the
        // method {@link OverlayPanelEventFilter#lockEventHorizontallty} will always
        // return an event with a single pointer, which is necessary to prevent
        // the app from crashing when the motion involves multiple pointers.
        // See: crbug.com/486901
        event = MotionEvent.obtain(
                e.getDownTime(),
                e.getEventTime(),
                // NOTE(pedrosimonetti): Use getActionMasked() to make sure we're not
                // send any pointer information to the event, given that getAction()
                // may have the pointer Id associated to it.
                e.getActionMasked(),
                e.getX(),
                mInitialEventY,
                e.getMetaState());

        isSyntheticEvent = true;
    }

    final float contentViewOffsetXPx = mPanel.getContentX() / mPxToDp;
    final float contentViewOffsetYPx = mPanel.getContentY() / mPxToDp;

    // Adjust the offset to be relative to the Content View.
    event.offsetLocation(-contentViewOffsetXPx, -contentViewOffsetYPx);

    // Get the container view to propagate the event to.
    ContentViewCore cvc = mPanel.getContentViewCore();
    ViewGroup containerView = cvc == null ? null : cvc.getContainerView();

    boolean wasEventCanceled = false;
    if (mWasActionDownEventSynthetic && action == MotionEvent.ACTION_UP) {
        float deltaX = event.getX() - mSyntheticActionDownX;
        float deltaY = event.getY() - mSyntheticActionDownY;
        // NOTE(pedrosimonetti): If the ACTION_DOWN event was synthetic and the distance
        // between it and the ACTION_UP event was short, then we should synthesize an
        // ACTION_CANCEL event to prevent a Tap gesture from being triggered on the
        // Content View. See crbug.com/408654
        if (!isDistanceGreaterThanTouchSlop(deltaX, deltaY)) {
            event.setAction(MotionEvent.ACTION_CANCEL);
            if (containerView != null) containerView.dispatchTouchEvent(event);
            wasEventCanceled = true;
        }
    } else if (action == MotionEvent.ACTION_DOWN) {
        mPanel.onTouchSearchContentViewAck();
    }

    if (!wasEventCanceled && containerView != null) containerView.dispatchTouchEvent(event);

    // Synthetic events should be recycled.
    if (isSyntheticEvent) event.recycle();
}
 

/**
 * Starts showing a context menu for {@code view} based on {@code params}.
 * @param contentViewCore The {@link ContentViewCore} to show the menu to.
 * @param params          The {@link ContextMenuParams} that indicate what menu items to show.
 */
@CalledByNative
private void showContextMenu(final ContentViewCore contentViewCore, ContextMenuParams params) {
    if (params.isFile()) return;
    View view = contentViewCore.getContainerView();
    final WindowAndroid windowAndroid = contentViewCore.getWindowAndroid();

    if (view == null || view.getVisibility() != View.VISIBLE || view.getParent() == null
            || windowAndroid == null || windowAndroid.getActivity().get() == null
            || mPopulator == null) {
        return;
    }

    mCurrentContextMenuParams = params;
    mActivity = windowAndroid.getActivity().get();
    mCallback = new Callback<Integer>() {
        @Override
        public void onResult(Integer result) {
            mPopulator.onItemSelected(
                    ContextMenuHelper.this, mCurrentContextMenuParams, result);
        }
    };
    mOnMenuShown = new Runnable() {
        @Override
        public void run() {
            WebContents webContents = contentViewCore.getWebContents();
            RecordHistogram.recordBooleanHistogram("ContextMenu.Shown", webContents != null);
        }
    };
    mOnMenuClosed = new Runnable() {
        @Override
        public void run() {
            if (mNativeContextMenuHelper == 0) return;
            nativeOnContextMenuClosed(mNativeContextMenuHelper);
        }
    };

    if (ChromeFeatureList.isEnabled(ChromeFeatureList.CUSTOM_CONTEXT_MENU)) {
        List<Pair<Integer, List<ContextMenuItem>>> items =
                mPopulator.buildContextMenu(null, mActivity, mCurrentContextMenuParams);
        if (items.isEmpty()) {
            ThreadUtils.postOnUiThread(mOnMenuClosed);
            return;
        }

        final ContextMenuUi menuUi = new TabularContextMenuUi(new Runnable() {
            @Override
            public void run() {
                shareImageDirectly(ShareHelper.getLastShareComponentName());
            }
        });
        menuUi.displayMenu(mActivity, mCurrentContextMenuParams, items, mCallback, mOnMenuShown,
                mOnMenuClosed);
        if (mCurrentContextMenuParams.isImage()) {
            getThumbnail(new Callback<Bitmap>() {
                @Override
                public void onResult(Bitmap result) {
                    ((TabularContextMenuUi) menuUi).onImageThumbnailRetrieved(result);
                }
            });
        }
        return;
    }

    // The Platform Context Menu requires the listener within this hepler since this helper and
    // provides context menu for us to show.
    view.setOnCreateContextMenuListener(this);
    if (view.showContextMenu()) {
        mOnMenuShown.run();
        windowAndroid.addContextMenuCloseListener(new OnCloseContextMenuListener() {
            @Override
            public void onContextMenuClosed() {
                mOnMenuClosed.run();
                windowAndroid.removeContextMenuCloseListener(this);
            }
        });
    }
}
 

/**
 * Propagates the given {@link MotionEvent} to the {@link ContentViewCore}.
 * @param e The {@link MotionEvent} to be propagated.
 */
protected void propagateEventToContentViewCore(MotionEvent e) {
    MotionEvent event = e;
    int action = event.getActionMasked();
    boolean isSyntheticEvent = false;
    if (mGestureOrientation == GestureOrientation.HORIZONTAL && !mPanel.isMaximized()) {
        // Ignores multitouch events to prevent the Content View from scrolling.
        if (action == MotionEvent.ACTION_POINTER_UP
                || action == MotionEvent.ACTION_POINTER_DOWN) {
            return;
        }

        // NOTE(pedrosimonetti): Lock horizontal motion, ignoring all vertical changes,
        // when the Panel is not maximized. This is to prevent the Content View
        // from scrolling when side swiping on the expanded Panel. Also, note that the
        // method {@link OverlayPanelEventFilter#lockEventHorizontallty} will always
        // return an event with a single pointer, which is necessary to prevent
        // the app from crashing when the motion involves multiple pointers.
        // See: crbug.com/486901
        event = MotionEvent.obtain(
                e.getDownTime(),
                e.getEventTime(),
                // NOTE(pedrosimonetti): Use getActionMasked() to make sure we're not
                // send any pointer information to the event, given that getAction()
                // may have the pointer Id associated to it.
                e.getActionMasked(),
                e.getX(),
                mInitialEventY,
                e.getMetaState());

        isSyntheticEvent = true;
    }

    final float contentViewOffsetXPx = mPanel.getContentX() / mPxToDp;
    final float contentViewOffsetYPx = mPanel.getContentY() / mPxToDp;

    // Adjust the offset to be relative to the Content View.
    event.offsetLocation(-contentViewOffsetXPx, -contentViewOffsetYPx);

    // Get the container view to propagate the event to.
    ContentViewCore cvc = mPanel.getContentViewCore();
    ViewGroup containerView = cvc == null ? null : cvc.getContainerView();

    boolean wasEventCanceled = false;
    if (mWasActionDownEventSynthetic && action == MotionEvent.ACTION_UP) {
        float deltaX = event.getX() - mSyntheticActionDownX;
        float deltaY = event.getY() - mSyntheticActionDownY;
        // NOTE(pedrosimonetti): If the ACTION_DOWN event was synthetic and the distance
        // between it and the ACTION_UP event was short, then we should synthesize an
        // ACTION_CANCEL event to prevent a Tap gesture from being triggered on the
        // Content View. See crbug.com/408654
        if (!isDistanceGreaterThanTouchSlop(deltaX, deltaY)) {
            event.setAction(MotionEvent.ACTION_CANCEL);
            if (containerView != null) containerView.dispatchTouchEvent(event);
            wasEventCanceled = true;
        }
    } else if (action == MotionEvent.ACTION_DOWN) {
        mPanel.onTouchSearchContentViewAck();
    }

    if (!wasEventCanceled && containerView != null) containerView.dispatchTouchEvent(event);

    // Synthetic events should be recycled.
    if (isSyntheticEvent) event.recycle();
}
 

private static boolean canShowBubble(ContentViewCore contentViewCore) {
    return contentViewCore.getContainerView() != null
            && contentViewCore.getContainerView().getWindowToken() != null;
}
 

public void init(ContentViewCore contentViewCore) {
    mContentViewCore = contentViewCore;
    mContainerView = contentViewCore.getContainerView();
}
 

public void init(ContentViewCore contentViewCore) {
    mContentViewCore = contentViewCore;
    mContainerView = contentViewCore.getContainerView();
}