Steven Ng
22b6039270
Test: resize widget, move widget, add widget. Bug: 189975670 Change-Id: Ia0bc2297891e1cfa33697e985064db5d1dcdfc8b
528 lines
22 KiB
Java
528 lines
22 KiB
Java
package com.android.launcher3.accessibility;
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import static android.view.accessibility.AccessibilityNodeInfo.ACTION_LONG_CLICK;
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import static com.android.launcher3.LauncherState.NORMAL;
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import static com.android.launcher3.anim.AnimatorListeners.forSuccessCallback;
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import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.IGNORE;
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import android.appwidget.AppWidgetProviderInfo;
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import android.graphics.Point;
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import android.graphics.Rect;
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import android.graphics.RectF;
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import android.os.Bundle;
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import android.os.Handler;
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import android.text.TextUtils;
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import android.util.Log;
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import android.util.SparseArray;
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import android.view.KeyEvent;
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import android.view.View;
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import android.view.View.AccessibilityDelegate;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
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import com.android.launcher3.BubbleTextView;
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import com.android.launcher3.ButtonDropTarget;
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import com.android.launcher3.CellLayout;
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import com.android.launcher3.DropTarget.DragObject;
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import com.android.launcher3.Launcher;
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import com.android.launcher3.LauncherSettings.Favorites;
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import com.android.launcher3.PendingAddItemInfo;
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import com.android.launcher3.R;
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import com.android.launcher3.Workspace;
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import com.android.launcher3.dragndrop.DragController.DragListener;
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import com.android.launcher3.dragndrop.DragOptions;
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import com.android.launcher3.dragndrop.DragView;
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import com.android.launcher3.folder.Folder;
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import com.android.launcher3.keyboard.KeyboardDragAndDropView;
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import com.android.launcher3.model.data.AppInfo;
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import com.android.launcher3.model.data.FolderInfo;
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import com.android.launcher3.model.data.ItemInfo;
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import com.android.launcher3.model.data.LauncherAppWidgetInfo;
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import com.android.launcher3.model.data.WorkspaceItemInfo;
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import com.android.launcher3.notification.NotificationListener;
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import com.android.launcher3.popup.ArrowPopup;
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import com.android.launcher3.popup.PopupContainerWithArrow;
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import com.android.launcher3.touch.ItemLongClickListener;
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import com.android.launcher3.util.IntArray;
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import com.android.launcher3.util.ShortcutUtil;
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import com.android.launcher3.util.Thunk;
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import com.android.launcher3.views.OptionsPopupView;
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import com.android.launcher3.views.OptionsPopupView.OptionItem;
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import com.android.launcher3.widget.LauncherAppWidgetHostView;
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import com.android.launcher3.widget.util.WidgetSizes;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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public class LauncherAccessibilityDelegate extends AccessibilityDelegate implements DragListener {
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private static final String TAG = "LauncherAccessibilityDelegate";
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public static final int REMOVE = R.id.action_remove;
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public static final int UNINSTALL = R.id.action_uninstall;
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public static final int DISMISS_PREDICTION = R.id.action_dismiss_prediction;
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public static final int PIN_PREDICTION = R.id.action_pin_prediction;
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public static final int RECONFIGURE = R.id.action_reconfigure;
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protected static final int ADD_TO_WORKSPACE = R.id.action_add_to_workspace;
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protected static final int MOVE = R.id.action_move;
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protected static final int MOVE_TO_WORKSPACE = R.id.action_move_to_workspace;
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protected static final int RESIZE = R.id.action_resize;
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public static final int DEEP_SHORTCUTS = R.id.action_deep_shortcuts;
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public static final int SHORTCUTS_AND_NOTIFICATIONS = R.id.action_shortcuts_and_notifications;
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public enum DragType {
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ICON,
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FOLDER,
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WIDGET
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}
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public static class DragInfo {
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public DragType dragType;
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public ItemInfo info;
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public View item;
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}
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protected final SparseArray<LauncherAction> mActions = new SparseArray<>();
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protected final Launcher mLauncher;
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private DragInfo mDragInfo = null;
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public LauncherAccessibilityDelegate(Launcher launcher) {
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mLauncher = launcher;
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mActions.put(REMOVE, new LauncherAction(
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REMOVE, R.string.remove_drop_target_label, KeyEvent.KEYCODE_X));
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mActions.put(UNINSTALL, new LauncherAction(
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UNINSTALL, R.string.uninstall_drop_target_label, KeyEvent.KEYCODE_U));
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mActions.put(DISMISS_PREDICTION, new LauncherAction(DISMISS_PREDICTION,
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R.string.dismiss_prediction_label, KeyEvent.KEYCODE_X));
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mActions.put(RECONFIGURE, new LauncherAction(
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RECONFIGURE, R.string.gadget_setup_text, KeyEvent.KEYCODE_E));
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mActions.put(ADD_TO_WORKSPACE, new LauncherAction(
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ADD_TO_WORKSPACE, R.string.action_add_to_workspace, KeyEvent.KEYCODE_P));
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mActions.put(MOVE, new LauncherAction(
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MOVE, R.string.action_move, KeyEvent.KEYCODE_M));
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mActions.put(MOVE_TO_WORKSPACE, new LauncherAction(MOVE_TO_WORKSPACE,
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R.string.action_move_to_workspace, KeyEvent.KEYCODE_P));
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mActions.put(RESIZE, new LauncherAction(
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RESIZE, R.string.action_resize, KeyEvent.KEYCODE_R));
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mActions.put(DEEP_SHORTCUTS, new LauncherAction(DEEP_SHORTCUTS,
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R.string.action_deep_shortcut, KeyEvent.KEYCODE_S));
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mActions.put(SHORTCUTS_AND_NOTIFICATIONS, new LauncherAction(DEEP_SHORTCUTS,
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R.string.shortcuts_menu_with_notifications_description, KeyEvent.KEYCODE_S));
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}
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@Override
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public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
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super.onInitializeAccessibilityNodeInfo(host, info);
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if (host.getTag() instanceof ItemInfo) {
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ItemInfo item = (ItemInfo) host.getTag();
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List<LauncherAction> actions = new ArrayList<>();
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getSupportedActions(host, item, actions);
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actions.forEach(la -> info.addAction(la.accessibilityAction));
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if (!itemSupportsLongClick(host, item)) {
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info.setLongClickable(false);
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info.removeAction(AccessibilityAction.ACTION_LONG_CLICK);
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}
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}
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}
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/**
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* Adds all the accessibility actions that can be handled.
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*/
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protected void getSupportedActions(View host, ItemInfo item, List<LauncherAction> out) {
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// If the request came from keyboard, do not add custom shortcuts as that is already
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// exposed as a direct shortcut
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if (ShortcutUtil.supportsShortcuts(item)) {
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out.add(mActions.get(NotificationListener.getInstanceIfConnected() != null
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? SHORTCUTS_AND_NOTIFICATIONS : DEEP_SHORTCUTS));
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}
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for (ButtonDropTarget target : mLauncher.getDropTargetBar().getDropTargets()) {
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if (target.supportsAccessibilityDrop(item, host)) {
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out.add(mActions.get(target.getAccessibilityAction()));
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}
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}
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// Do not add move actions for keyboard request as this uses virtual nodes.
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if (itemSupportsAccessibleDrag(item)) {
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out.add(mActions.get(MOVE));
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if (item.container >= 0) {
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out.add(mActions.get(MOVE_TO_WORKSPACE));
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} else if (item instanceof LauncherAppWidgetInfo) {
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if (!getSupportedResizeActions(host, (LauncherAppWidgetInfo) item).isEmpty()) {
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out.add(mActions.get(RESIZE));
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}
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}
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}
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if ((item instanceof AppInfo) || (item instanceof PendingAddItemInfo)) {
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out.add(mActions.get(ADD_TO_WORKSPACE));
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}
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}
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/**
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* Returns all the accessibility actions that can be handled by the host.
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*/
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public static List<LauncherAction> getSupportedActions(Launcher launcher, View host) {
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if (host == null || !(host.getTag() instanceof ItemInfo)) {
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return Collections.emptyList();
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}
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PopupContainerWithArrow container = PopupContainerWithArrow.getOpen(launcher);
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LauncherAccessibilityDelegate delegate = container != null
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? container.getAccessibilityDelegate() : launcher.getAccessibilityDelegate();
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List<LauncherAction> result = new ArrayList<>();
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delegate.getSupportedActions(host, (ItemInfo) host.getTag(), result);
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return result;
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}
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private boolean itemSupportsLongClick(View host, ItemInfo info) {
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return PopupContainerWithArrow.canShow(host, info);
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}
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private boolean itemSupportsAccessibleDrag(ItemInfo item) {
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if (item instanceof WorkspaceItemInfo) {
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// Support the action unless the item is in a context menu.
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return item.screenId >= 0 && item.container != Favorites.CONTAINER_HOTSEAT_PREDICTION;
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}
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return (item instanceof LauncherAppWidgetInfo)
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|| (item instanceof FolderInfo);
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}
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@Override
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public boolean performAccessibilityAction(View host, int action, Bundle args) {
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if ((host.getTag() instanceof ItemInfo)
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&& performAction(host, (ItemInfo) host.getTag(), action, false)) {
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return true;
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}
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return super.performAccessibilityAction(host, action, args);
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}
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/**
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* Performs the provided action on the host
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*/
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protected boolean performAction(final View host, final ItemInfo item, int action,
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boolean fromKeyboard) {
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if (action == ACTION_LONG_CLICK) {
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if (PopupContainerWithArrow.canShow(host, item)) {
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// Long press should be consumed for workspace items, and it should invoke the
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// Shortcuts / Notifications / Actions pop-up menu, and not start a drag as the
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// standard long press path does.
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PopupContainerWithArrow.showForIcon((BubbleTextView) host);
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return true;
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}
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} else if (action == MOVE) {
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return beginAccessibleDrag(host, item, fromKeyboard);
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} else if (action == ADD_TO_WORKSPACE) {
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final int[] coordinates = new int[2];
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final int screenId = findSpaceOnWorkspace(item, coordinates);
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mLauncher.getStateManager().goToState(NORMAL, true, forSuccessCallback(() -> {
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if (item instanceof AppInfo) {
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WorkspaceItemInfo info = ((AppInfo) item).makeWorkspaceItem();
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mLauncher.getModelWriter().addItemToDatabase(info,
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Favorites.CONTAINER_DESKTOP,
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screenId, coordinates[0], coordinates[1]);
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mLauncher.bindItems(
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Collections.singletonList(info),
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/* forceAnimateIcons= */ true,
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/* focusFirstItemForAccessibility= */ true);
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announceConfirmation(R.string.item_added_to_workspace);
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} else if (item instanceof PendingAddItemInfo) {
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PendingAddItemInfo info = (PendingAddItemInfo) item;
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Workspace workspace = mLauncher.getWorkspace();
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workspace.snapToPage(workspace.getPageIndexForScreenId(screenId));
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mLauncher.addPendingItem(info, Favorites.CONTAINER_DESKTOP,
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screenId, coordinates, info.spanX, info.spanY);
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}
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}));
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return true;
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} else if (action == MOVE_TO_WORKSPACE) {
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Folder folder = Folder.getOpen(mLauncher);
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folder.close(true);
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WorkspaceItemInfo info = (WorkspaceItemInfo) item;
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folder.getInfo().remove(info, false);
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final int[] coordinates = new int[2];
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final int screenId = findSpaceOnWorkspace(item, coordinates);
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mLauncher.getModelWriter().moveItemInDatabase(info,
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Favorites.CONTAINER_DESKTOP,
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screenId, coordinates[0], coordinates[1]);
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// Bind the item in next frame so that if a new workspace page was created,
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// it will get laid out.
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new Handler().post(() -> {
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mLauncher.bindItems(Collections.singletonList(item), true);
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announceConfirmation(R.string.item_moved);
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});
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return true;
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} else if (action == RESIZE) {
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final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) item;
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List<OptionItem> actions = getSupportedResizeActions(host, info);
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Rect pos = new Rect();
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mLauncher.getDragLayer().getDescendantRectRelativeToSelf(host, pos);
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ArrowPopup popup = OptionsPopupView.show(mLauncher, new RectF(pos), actions, false);
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popup.requestFocus();
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popup.setOnCloseCallback(host::requestFocus);
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return true;
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} else if (action == DEEP_SHORTCUTS || action == SHORTCUTS_AND_NOTIFICATIONS) {
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return PopupContainerWithArrow.showForIcon((BubbleTextView) host) != null;
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} else {
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for (ButtonDropTarget dropTarget : mLauncher.getDropTargetBar().getDropTargets()) {
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if (dropTarget.supportsAccessibilityDrop(item, host)
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&& action == dropTarget.getAccessibilityAction()) {
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dropTarget.onAccessibilityDrop(host, item);
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return true;
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}
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}
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}
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return false;
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}
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private List<OptionItem> getSupportedResizeActions(View host, LauncherAppWidgetInfo info) {
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List<OptionItem> actions = new ArrayList<>();
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AppWidgetProviderInfo providerInfo = ((LauncherAppWidgetHostView) host).getAppWidgetInfo();
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if (providerInfo == null) {
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return actions;
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}
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CellLayout layout;
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if (host.getParent() instanceof DragView) {
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layout = (CellLayout) ((DragView) host.getParent()).getContentViewParent().getParent();
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} else {
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layout = (CellLayout) host.getParent().getParent();
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}
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if ((providerInfo.resizeMode & AppWidgetProviderInfo.RESIZE_HORIZONTAL) != 0) {
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if (layout.isRegionVacant(info.cellX + info.spanX, info.cellY, 1, info.spanY) ||
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layout.isRegionVacant(info.cellX - 1, info.cellY, 1, info.spanY)) {
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actions.add(new OptionItem(mLauncher,
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R.string.action_increase_width,
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R.drawable.ic_widget_width_increase,
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IGNORE,
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v -> performResizeAction(R.string.action_increase_width, host, info)));
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}
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if (info.spanX > info.minSpanX && info.spanX > 1) {
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actions.add(new OptionItem(mLauncher,
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R.string.action_decrease_width,
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R.drawable.ic_widget_width_decrease,
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IGNORE,
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v -> performResizeAction(R.string.action_decrease_width, host, info)));
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}
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}
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if ((providerInfo.resizeMode & AppWidgetProviderInfo.RESIZE_VERTICAL) != 0) {
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if (layout.isRegionVacant(info.cellX, info.cellY + info.spanY, info.spanX, 1) ||
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layout.isRegionVacant(info.cellX, info.cellY - 1, info.spanX, 1)) {
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actions.add(new OptionItem(mLauncher,
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R.string.action_increase_height,
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R.drawable.ic_widget_height_increase,
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IGNORE,
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v -> performResizeAction(R.string.action_increase_height, host, info)));
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}
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if (info.spanY > info.minSpanY && info.spanY > 1) {
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actions.add(new OptionItem(mLauncher,
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R.string.action_decrease_height,
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R.drawable.ic_widget_height_decrease,
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IGNORE,
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v -> performResizeAction(R.string.action_decrease_height, host, info)));
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}
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}
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return actions;
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}
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private boolean performResizeAction(int action, View host, LauncherAppWidgetInfo info) {
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CellLayout.LayoutParams lp = (CellLayout.LayoutParams) host.getLayoutParams();
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CellLayout layout = (CellLayout) host.getParent().getParent();
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layout.markCellsAsUnoccupiedForView(host);
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if (action == R.string.action_increase_width) {
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if (((host.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL)
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&& layout.isRegionVacant(info.cellX - 1, info.cellY, 1, info.spanY))
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|| !layout.isRegionVacant(info.cellX + info.spanX, info.cellY, 1, info.spanY)) {
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lp.cellX --;
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info.cellX --;
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}
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lp.cellHSpan ++;
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info.spanX ++;
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} else if (action == R.string.action_decrease_width) {
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lp.cellHSpan --;
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info.spanX --;
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} else if (action == R.string.action_increase_height) {
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if (!layout.isRegionVacant(info.cellX, info.cellY + info.spanY, info.spanX, 1)) {
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lp.cellY --;
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info.cellY --;
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}
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lp.cellVSpan ++;
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info.spanY ++;
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} else if (action == R.string.action_decrease_height) {
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lp.cellVSpan --;
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info.spanY --;
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}
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layout.markCellsAsOccupiedForView(host);
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WidgetSizes.updateWidgetSizeRanges(((LauncherAppWidgetHostView) host), mLauncher,
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info.spanX, info.spanY);
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host.requestLayout();
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mLauncher.getModelWriter().updateItemInDatabase(info);
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announceConfirmation(mLauncher.getString(R.string.widget_resized, info.spanX, info.spanY));
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return true;
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}
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@Thunk void announceConfirmation(int resId) {
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announceConfirmation(mLauncher.getResources().getString(resId));
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}
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@Thunk void announceConfirmation(String confirmation) {
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mLauncher.getDragLayer().announceForAccessibility(confirmation);
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}
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public boolean isInAccessibleDrag() {
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return mDragInfo != null;
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}
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public DragInfo getDragInfo() {
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return mDragInfo;
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}
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/**
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* @param clickedTarget the actual view that was clicked
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* @param dropLocation relative to {@param clickedTarget}. If provided, its center is used
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* as the actual drop location otherwise the views center is used.
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*/
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public void handleAccessibleDrop(View clickedTarget, Rect dropLocation,
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String confirmation) {
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if (!isInAccessibleDrag()) return;
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int[] loc = new int[2];
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if (dropLocation == null) {
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loc[0] = clickedTarget.getWidth() / 2;
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loc[1] = clickedTarget.getHeight() / 2;
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} else {
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loc[0] = dropLocation.centerX();
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loc[1] = dropLocation.centerY();
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}
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mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(clickedTarget, loc);
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mLauncher.getDragController().completeAccessibleDrag(loc);
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if (!TextUtils.isEmpty(confirmation)) {
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announceConfirmation(confirmation);
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}
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}
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private boolean beginAccessibleDrag(View item, ItemInfo info, boolean fromKeyboard) {
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if (!itemSupportsAccessibleDrag(info)) {
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return false;
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}
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mDragInfo = new DragInfo();
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mDragInfo.info = info;
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mDragInfo.item = item;
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mDragInfo.dragType = DragType.ICON;
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if (info instanceof FolderInfo) {
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mDragInfo.dragType = DragType.FOLDER;
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} else if (info instanceof LauncherAppWidgetInfo) {
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mDragInfo.dragType = DragType.WIDGET;
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}
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Rect pos = new Rect();
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mLauncher.getDragLayer().getDescendantRectRelativeToSelf(item, pos);
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mLauncher.getDragController().addDragListener(this);
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DragOptions options = new DragOptions();
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options.isAccessibleDrag = true;
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options.isKeyboardDrag = fromKeyboard;
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options.simulatedDndStartPoint = new Point(pos.centerX(), pos.centerY());
|
|
|
|
if (fromKeyboard) {
|
|
KeyboardDragAndDropView popup = (KeyboardDragAndDropView) mLauncher.getLayoutInflater()
|
|
.inflate(R.layout.keyboard_drag_and_drop, mLauncher.getDragLayer(), false);
|
|
popup.showForIcon(item, info, options);
|
|
} else {
|
|
ItemLongClickListener.beginDrag(item, mLauncher, info, options);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public void onDragStart(DragObject dragObject, DragOptions options) {
|
|
// No-op
|
|
}
|
|
|
|
@Override
|
|
public void onDragEnd() {
|
|
mLauncher.getDragController().removeDragListener(this);
|
|
mDragInfo = null;
|
|
}
|
|
|
|
/**
|
|
* Find empty space on the workspace and returns the screenId.
|
|
*/
|
|
protected int findSpaceOnWorkspace(ItemInfo info, int[] outCoordinates) {
|
|
Workspace workspace = mLauncher.getWorkspace();
|
|
IntArray workspaceScreens = workspace.getScreenOrder();
|
|
int screenId;
|
|
|
|
// First check if there is space on the current screen.
|
|
int screenIndex = workspace.getCurrentPage();
|
|
screenId = workspaceScreens.get(screenIndex);
|
|
CellLayout layout = (CellLayout) workspace.getPageAt(screenIndex);
|
|
|
|
boolean found = layout.findCellForSpan(outCoordinates, info.spanX, info.spanY);
|
|
screenIndex = 0;
|
|
while (!found && screenIndex < workspaceScreens.size()) {
|
|
screenId = workspaceScreens.get(screenIndex);
|
|
layout = (CellLayout) workspace.getPageAt(screenIndex);
|
|
found = layout.findCellForSpan(outCoordinates, info.spanX, info.spanY);
|
|
screenIndex++;
|
|
}
|
|
|
|
if (found) {
|
|
return screenId;
|
|
}
|
|
|
|
workspace.addExtraEmptyScreen();
|
|
screenId = workspace.commitExtraEmptyScreen();
|
|
layout = workspace.getScreenWithId(screenId);
|
|
found = layout.findCellForSpan(outCoordinates, info.spanX, info.spanY);
|
|
|
|
if (!found) {
|
|
Log.wtf(TAG, "Not enough space on an empty screen");
|
|
}
|
|
return screenId;
|
|
}
|
|
|
|
public class LauncherAction {
|
|
public final int keyCode;
|
|
public final AccessibilityAction accessibilityAction;
|
|
|
|
private final LauncherAccessibilityDelegate mDelegate;
|
|
|
|
public LauncherAction(int id, int labelRes, int keyCode) {
|
|
this.keyCode = keyCode;
|
|
accessibilityAction = new AccessibilityAction(id, mLauncher.getString(labelRes));
|
|
mDelegate = LauncherAccessibilityDelegate.this;
|
|
}
|
|
|
|
/**
|
|
* Invokes the action for the provided host
|
|
*/
|
|
public boolean invokeFromKeyboard(View host) {
|
|
if (host != null && host.getTag() instanceof ItemInfo) {
|
|
return mDelegate.performAction(
|
|
host, (ItemInfo) host.getTag(), accessibilityAction.getId(), true);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|