Examples with CellLayout com.android.launcher3.CellLayout used on opensource projects

Example 61 with CellLayout

use of com.android.launcher3.CellLayout in project android_packages_apps_Trebuchet by LineageOS.

the class Workspace method removeItemsByMatcher.

/**
 * Removes items that match the {@param matcher}. When applications are removed
 * as a part of an update, this is called to ensure that other widgets and application
 * shortcuts are not removed.
 */
public void removeItemsByMatcher(final ItemInfoMatcher matcher) {
    for (final CellLayout layoutParent : getWorkspaceAndHotseatCellLayouts()) {
        final ViewGroup layout = layoutParent.getShortcutsAndWidgets();
        IntSparseArrayMap<View> idToViewMap = new IntSparseArrayMap<>();
        ArrayList<ItemInfo> items = new ArrayList<>();
        for (int j = 0; j < layout.getChildCount(); j++) {
            final View view = layout.getChildAt(j);
            if (view.getTag() instanceof ItemInfo) {
                ItemInfo item = (ItemInfo) view.getTag();
                items.add(item);
                idToViewMap.put(item.id, view);
            }
        }
        for (ItemInfo itemToRemove : matcher.filterItemInfos(items)) {
            View child = idToViewMap.get(itemToRemove.id);
            if (child != null) {
                // Note: We can not remove the view directly from CellLayoutChildren as this
                // does not re-mark the spaces as unoccupied.
                layoutParent.removeViewInLayout(child);
                if (child instanceof DropTarget) {
                    mDragController.removeDropTarget((DropTarget) child);
                }
            } else if (itemToRemove.container >= 0) {
                // The item may belong to a folder.
                View parent = idToViewMap.get(itemToRemove.container);
                if (parent instanceof FolderIcon) {
                    FolderInfo folderInfo = (FolderInfo) parent.getTag();
                    folderInfo.remove((WorkspaceItemInfo) itemToRemove, false);
                    if (((FolderIcon) parent).getFolder().isOpen()) {
                        ((FolderIcon) parent).getFolder().close(false);
                    }
                }
            }
        }
    }
    // Strip all the empty screens
    stripEmptyScreens();
}

Example 62 with CellLayout

use of com.android.launcher3.CellLayout in project android_packages_apps_Trebuchet by LineageOS.

the class Workspace method mapOverCellLayout.

private boolean mapOverCellLayout(CellLayout layout, ItemOperator op) {
    // TODO(b/128460496) Potential race condition where layout is not yet loaded
    if (layout == null) {
        return false;
    }
    ShortcutAndWidgetContainer container = layout.getShortcutsAndWidgets();
    // map over all the shortcuts on the workspace
    final int itemCount = container.getChildCount();
    for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) {
        View item = container.getChildAt(itemIdx);
        if (op.evaluate((ItemInfo) item.getTag(), item)) {
            return true;
        }
    }
    return false;
}

Example 63 with CellLayout

use of com.android.launcher3.CellLayout in project android_packages_apps_Trebuchet by LineageOS.

the class Workspace method stripEmptyScreens.

public void stripEmptyScreens() {
    if (mLauncher.isWorkspaceLoading()) {
        // This is dangerous and can result in data loss.
        return;
    }
    if (isPageInTransition()) {
        mStripScreensOnPageStopMoving = true;
        return;
    }
    int currentPage = getNextPage();
    IntArray removeScreens = new IntArray();
    int total = mWorkspaceScreens.size();
    for (int i = 0; i < total; i++) {
        int id = mWorkspaceScreens.keyAt(i);
        CellLayout cl = mWorkspaceScreens.valueAt(i);
        // FIRST_SCREEN_ID can never be removed.
        if ((!FeatureFlags.QSB_ON_FIRST_SCREEN || id > FIRST_SCREEN_ID) && cl.getShortcutsAndWidgets().getChildCount() == 0) {
            removeScreens.add(id);
        }
    }
    // We enforce at least one page to add new items to. In the case that we remove the last
    // such screen, we convert the last screen to the empty screen
    int minScreens = 1;
    int pageShift = 0;
    for (int i = 0; i < removeScreens.size(); i++) {
        int id = removeScreens.get(i);
        CellLayout cl = mWorkspaceScreens.get(id);
        mWorkspaceScreens.remove(id);
        mScreenOrder.removeValue(id);
        if (getChildCount() > minScreens) {
            if (indexOfChild(cl) < currentPage) {
                pageShift++;
            }
            removeView(cl);
        } else {
            // if this is the last screen, convert it to the empty screen
            mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl);
            mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID);
        }
    }
    if (pageShift >= 0) {
        setCurrentPage(currentPage - pageShift);
    }
}

Example 64 with CellLayout

use of com.android.launcher3.CellLayout in project android_packages_apps_Trebuchet by LineageOS.

the class Workspace method createUserFolderIfNecessary.

boolean createUserFolderIfNecessary(View newView, int container, CellLayout target, int[] targetCell, float distance, boolean external, DragObject d) {
    if (distance > mMaxDistanceForFolderCreation)
        return false;
    View v = target.getChildAt(targetCell[0], targetCell[1]);
    boolean hasntMoved = false;
    if (mDragInfo != null) {
        CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell);
        hasntMoved = (mDragInfo.cellX == targetCell[0] && mDragInfo.cellY == targetCell[1]) && (cellParent == target);
    }
    if (v == null || hasntMoved || !mCreateUserFolderOnDrop)
        return false;
    mCreateUserFolderOnDrop = false;
    final int screenId = getIdForScreen(target);
    boolean aboveShortcut = (v.getTag() instanceof WorkspaceItemInfo);
    boolean willBecomeShortcut = (newView.getTag() instanceof WorkspaceItemInfo);
    if (aboveShortcut && willBecomeShortcut) {
        WorkspaceItemInfo sourceInfo = (WorkspaceItemInfo) newView.getTag();
        WorkspaceItemInfo destInfo = (WorkspaceItemInfo) v.getTag();
        // if the drag started here, we need to remove it from the workspace
        if (!external) {
            getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
        }
        Rect folderLocation = new Rect();
        float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation);
        target.removeView(v);
        mStatsLogManager.logger().withItemInfo(destInfo).withInstanceId(d.logInstanceId).log(LauncherEvent.LAUNCHER_ITEM_DROP_FOLDER_CREATED);
        FolderIcon fi = mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]);
        destInfo.cellX = -1;
        destInfo.cellY = -1;
        sourceInfo.cellX = -1;
        sourceInfo.cellY = -1;
        // If the dragView is null, we can't animate
        boolean animate = d != null;
        if (animate) {
            // In order to keep everything continuous, we hand off the currently rendered
            // folder background to the newly created icon. This preserves animation state.
            fi.setFolderBackground(mFolderCreateBg);
            mFolderCreateBg = new PreviewBackground();
            fi.performCreateAnimation(destInfo, v, sourceInfo, d, folderLocation, scale);
        } else {
            fi.prepareCreateAnimation(v);
            fi.addItem(destInfo);
            fi.addItem(sourceInfo);
        }
        mLauncher.folderCreatedFromItem(fi.getFolder(), destInfo);
        return true;
    }
    return false;
}

Example 65 with CellLayout

use of com.android.launcher3.CellLayout in project android_packages_apps_Trebuchet by LineageOS.

the class LauncherAccessibilityDelegate method getSupportedResizeActions.

private IntArray getSupportedResizeActions(View host, LauncherAppWidgetInfo info) {
    IntArray actions = new IntArray();
    AppWidgetProviderInfo providerInfo = ((LauncherAppWidgetHostView) host).getAppWidgetInfo();
    if (providerInfo == null) {
        return actions;
    }
    CellLayout layout = (CellLayout) host.getParent().getParent();
    if ((providerInfo.resizeMode & AppWidgetProviderInfo.RESIZE_HORIZONTAL) != 0) {
        if (layout.isRegionVacant(info.cellX + info.spanX, info.cellY, 1, info.spanY) || layout.isRegionVacant(info.cellX - 1, info.cellY, 1, info.spanY)) {
            actions.add(R.string.action_increase_width);
        }
        if (info.spanX > info.minSpanX && info.spanX > 1) {
            actions.add(R.string.action_decrease_width);
        }
    }
    if ((providerInfo.resizeMode & AppWidgetProviderInfo.RESIZE_VERTICAL) != 0) {
        if (layout.isRegionVacant(info.cellX, info.cellY + info.spanY, info.spanX, 1) || layout.isRegionVacant(info.cellX, info.cellY - 1, info.spanX, 1)) {
            actions.add(R.string.action_increase_height);
        }
        if (info.spanY > info.minSpanY && info.spanY > 1) {
            actions.add(R.string.action_decrease_height);
        }
    }
    return actions;
}