| Index: chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenu.java
|
| diff --git a/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenu.java b/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenu.java
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..e8fa56dbcaea0c5100706dc73328f51bf034b7d3
|
| --- /dev/null
|
| +++ b/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenu.java
|
| @@ -0,0 +1,1005 @@
|
| +// Copyright 2011 The Chromium Authors. All rights reserved.
|
| +// Use of this source code is governed by a BSD-style license that can be
|
| +// found in the LICENSE file.
|
| +
|
| +package org.chromium.chrome.browser.appmenu;
|
| +
|
| +import android.animation.TimeAnimator;
|
| +import android.app.Activity;
|
| +import android.content.Context;
|
| +import android.content.res.Resources;
|
| +import android.graphics.Point;
|
| +import android.graphics.Rect;
|
| +import android.graphics.drawable.Drawable;
|
| +import android.os.SystemClock;
|
| +import android.util.AttributeSet;
|
| +import android.util.Log;
|
| +import android.view.Display;
|
| +import android.view.KeyEvent;
|
| +import android.view.LayoutInflater;
|
| +import android.view.Menu;
|
| +import android.view.MenuItem;
|
| +import android.view.MotionEvent;
|
| +import android.view.Surface;
|
| +import android.view.View;
|
| +import android.view.View.OnClickListener;
|
| +import android.view.View.OnKeyListener;
|
| +import android.view.View.OnTouchListener;
|
| +import android.view.ViewConfiguration;
|
| +import android.view.ViewGroup;
|
| +import android.view.ViewParent;
|
| +import android.widget.AdapterView;
|
| +import android.widget.BaseAdapter;
|
| +import android.widget.HeaderViewListAdapter;
|
| +import android.widget.ImageButton;
|
| +import android.widget.ImageView;
|
| +import android.widget.ListPopupWindow;
|
| +import android.widget.ListView;
|
| +import android.widget.ListView.FixedViewInfo;
|
| +import android.widget.PopupWindow;
|
| +import android.widget.PopupWindow.OnDismissListener;
|
| +import android.widget.TextView;
|
| +
|
| +import com.google.common.annotations.VisibleForTesting;
|
| +
|
| +import org.chromium.chrome.R;
|
| +import org.chromium.chrome.browser.BookmarksBridge;
|
| +import org.chromium.chrome.browser.UmaBridge;
|
| +import org.chromium.chrome.browser.util.KeyNavigationUtil;
|
| +
|
| +import java.util.ArrayList;
|
| +import java.util.List;
|
| +
|
| +/**
|
| + * Shows a popup of menuitems anchored to a host view. When a item is selected we call
|
| + * Activity.onOptionsItemSelected with the appropriate MenuItem.
|
| + * - Only visible MenuItems are shown.
|
| + * - Disabled items are grayed out.
|
| + */
|
| +public class AppMenu implements AdapterView.OnItemClickListener, OnKeyListener {
|
| + private static final String TAG = "AppMenu";
|
| +
|
| + private static final float LAST_ITEM_SHOW_FRACTION = 0.5f;
|
| + private static final int DIVIDER_HEIGHT_DP = 1;
|
| +
|
| + private static final float AUTO_SCROLL_AREA_MAX_RATIO = 0.25f;
|
| + private static final int EDGE_SWIPE_IN_ADDITIONAL_SLOP_TIME_MS = 500;
|
| +
|
| + // Internally used action constants for dragging.
|
| + private static final int ITEM_ACTION_HIGHLIGHT = 0;
|
| + private static final int ITEM_ACTION_PERFORM = 1;
|
| + private static final int ITEM_ACTION_CLEAR_HIGHLIGHT_ALL = 2;
|
| +
|
| + private final Menu mMenu;
|
| + private final Activity mActivity;
|
| + private final int mItemRowHeight;
|
| + private final int mItemDividerHeight;
|
| + private final int mVerticalFadeDistance;
|
| + private final int mAdditionalVerticalOffset;
|
| + private ListPopupWindow mPopup;
|
| + private LayoutInflater mInflater;
|
| + private boolean mShowIconRow;
|
| + private MenuAdapter mAdapter;
|
| + private ImageButton mBookmarkButton;
|
| + private View mIconRowView;
|
| + private AppMenuHandler mHandler;
|
| +
|
| + // Dragging related variables, i.e., menu showing initiated by touch down and drag to navigate.
|
| + private final float mAutoScrollFullVelocity;
|
| + private final int mEdgeSwipeInSlop;
|
| + private final int mEdgeSwipeInAdditionalSlop;
|
| + private final int mEdgeSwipeOutSlop;
|
| + private int mScaledTouchSlop;
|
| + private long mHardwareMenuButtonUpTime;
|
| + private boolean mIsByHardwareButton;
|
| + private boolean mDragPending;
|
| + private final TimeAnimator mDragScrolling = new TimeAnimator();
|
| + private float mDragScrollOffset;
|
| + private int mDragScrollOffsetRounded;
|
| + private volatile float mDragScrollingVelocity;
|
| + private volatile float mLastTouchX;
|
| + private volatile float mLastTouchY;
|
| + private int mCurrentScreenRotation = -1;
|
| + private float mTopTouchMovedBound;
|
| + private float mBottomTouchMovedBound;
|
| + private boolean mIsDownScrollable;
|
| + private boolean mIsUpScrollable;
|
| +
|
| + // Sub-UI-controls, backward, forward, bookmark and listView, are getting a touch event first
|
| + // if the app menu is initiated by hardware menu button. For those cases, we need to
|
| + // conditionally forward the touch event to our drag scrolling method.
|
| + private final OnTouchListener mDragScrollTouchEventForwarder = new OnTouchListener() {
|
| + @Override
|
| + public boolean onTouch(View view, MotionEvent event) {
|
| + return AppMenu.this.handleDragging(event);
|
| + }
|
| + };
|
| +
|
| + // These are used in a function locally, but defined here to avoid heap allocation on every
|
| + // touch event.
|
| + private final Rect mScreenVisibleRect = new Rect();
|
| + private final int[] mScreenVisiblePoint = new int[2];
|
| +
|
| + /**
|
| + * Creates and sets up the App Menu.
|
| + * @param activity Activity that will handle app menu callbacks.
|
| + * @param menu Original menu created by the framework.
|
| + * @param itemRowHeight Desired height for each app menu row.
|
| + */
|
| + AppMenu(Activity activity, Menu menu, int itemRowHeight, AppMenuHandler handler) {
|
| + mActivity = activity;
|
| + mMenu = menu;
|
| + mScaledTouchSlop =
|
| + ViewConfiguration.get(mActivity.getApplicationContext()).getScaledTouchSlop();
|
| + mItemRowHeight = itemRowHeight;
|
| + assert mItemRowHeight > 0;
|
| +
|
| + mHandler = handler;
|
| + Resources res = mActivity.getResources();
|
| +
|
| + final float dpToPx = res.getDisplayMetrics().density;
|
| + mItemDividerHeight = (int) (DIVIDER_HEIGHT_DP * dpToPx);
|
| +
|
| + mAdditionalVerticalOffset = res.getDimensionPixelSize(R.dimen.menu_vertical_offset);
|
| + mVerticalFadeDistance = res.getDimensionPixelSize(R.dimen.menu_vertical_fade_distance);
|
| + mAutoScrollFullVelocity = res.getDimensionPixelSize(R.dimen.auto_scroll_full_velocity);
|
| + mEdgeSwipeInSlop = res.getDimensionPixelSize(R.dimen.edge_swipe_in_slop);
|
| + mEdgeSwipeInAdditionalSlop = res.getDimensionPixelSize(
|
| + R.dimen.edge_swipe_in_additional_slop);
|
| + mEdgeSwipeOutSlop = res.getDimensionPixelSize(R.dimen.edge_swipe_out_slop);
|
| + // If user is dragging and the popup ListView is too big to display at once,
|
| + // mDragScrolling animator scrolls mPopup.getListView() automatically depending on
|
| + // the user's touch position.
|
| + mDragScrolling.setTimeListener(new TimeAnimator.TimeListener() {
|
| + @Override
|
| + public void onTimeUpdate(TimeAnimator animation, long totalTime, long deltaTime) {
|
| + if (mPopup == null || mPopup.getListView() == null) return;
|
| +
|
| + // We keep both mDragScrollOffset and mDragScrollOffsetRounded because
|
| + // the actual scrolling is by the rounded value but at the same time we also
|
| + // want to keep the precise scroll value in float.
|
| + mDragScrollOffset += (deltaTime * 0.001f) * mDragScrollingVelocity;
|
| + int diff = Math.round(mDragScrollOffset - mDragScrollOffsetRounded);
|
| + mDragScrollOffsetRounded += diff;
|
| + mPopup.getListView().smoothScrollBy(diff, 0);
|
| +
|
| + // Force touch move event to highlight items correctly for the scrolled position.
|
| + if (!Float.isNaN(mLastTouchX) && !Float.isNaN(mLastTouchY)) {
|
| + int actionToPerform = isInSwipeOutRegion(mLastTouchX, mLastTouchY) ?
|
| + ITEM_ACTION_CLEAR_HIGHLIGHT_ALL : ITEM_ACTION_HIGHLIGHT;
|
| + menuItemAction(Math.round(mLastTouchX), Math.round(mLastTouchY),
|
| + actionToPerform);
|
| + }
|
| + }
|
| + });
|
| + }
|
| +
|
| + private void updateBookmarkButton() {
|
| + final MenuItem bookmarkMenuItem = mMenu.findItem(R.id.bookmark_this_page_id);
|
| + if (mBookmarkButton == null || bookmarkMenuItem == null) return;
|
| + if (bookmarkMenuItem.isEnabled()) {
|
| + mBookmarkButton.setImageResource(R.drawable.star);
|
| + mBookmarkButton.setContentDescription(mBookmarkButton.getContext().getString(
|
| + R.string.accessibility_menu_bookmark));
|
| + } else {
|
| + mBookmarkButton.setImageResource(R.drawable.star_lit);
|
| + mBookmarkButton.setContentDescription(mBookmarkButton.getContext().getString(
|
| + R.string.accessibility_menu_edit_bookmark));
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * Creates and shows the app menu anchored to the specified view.
|
| + *
|
| + * @param context The context of the app popup (ensure the proper theme is set on
|
| + * this context).
|
| + * @param anchorView The anchor {@link View} of the {@link ListPopupWindow}.
|
| + * @param showIconRow Whether or not the icon row should be shown,
|
| + * @param isByHardwareButton Whether or not hardware button triggered it. (oppose to software
|
| + * button)
|
| + * @param startDragging Whether dragging is started. For example, if the app menu
|
| + * is showed by tapping on a button, this should be false. If it is
|
| + * showed by start dragging down on the menu button, this should be
|
| + * true. Note that if isByHardwareButton is true, this is ignored.
|
| + */
|
| + void show(Context context, View anchorView, boolean showIconRow,
|
| + boolean isByHardwareButton, boolean startDragging) {
|
| + mPopup = new ListPopupWindow(context, null, android.R.attr.popupMenuStyle);
|
| + mInflater = LayoutInflater.from(context);
|
| + mPopup.setModal(true);
|
| + mPopup.setAnchorView(anchorView);
|
| + mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED);
|
| + mPopup.setOnDismissListener(new OnDismissListener() {
|
| + @Override
|
| + public void onDismiss() {
|
| + if (mPopup.getAnchorView() instanceof ImageButton) {
|
| + ((ImageButton) mPopup.getAnchorView()).setSelected(false);
|
| + }
|
| + mHandler.onMenuVisibilityChanged(false, ListView.INVALID_POSITION);
|
| + }
|
| + });
|
| + mPopup.setWidth(context.getResources().getDimensionPixelSize(R.dimen.menu_width));
|
| +
|
| + mShowIconRow = showIconRow;
|
| + mCurrentScreenRotation = mActivity.getWindowManager().getDefaultDisplay().getRotation();
|
| + mIsByHardwareButton = isByHardwareButton;
|
| +
|
| + // Extract visible items from the Menu.
|
| + int numItems = mMenu.size();
|
| + List<MenuItem> menuItems = new ArrayList<MenuItem>();
|
| + for (int i = 0; i < numItems; ++i) {
|
| + MenuItem item = mMenu.getItem(i);
|
| + if (item.isVisible()) {
|
| + menuItems.add(item);
|
| + }
|
| + }
|
| +
|
| + // A List adapter for visible items in the Menu. The first row is added as a header to the
|
| + // list view.
|
| + mAdapter = new MenuAdapter(menuItems, mInflater);
|
| + if (mShowIconRow) {
|
| + mIconRowView = mInflater.inflate(R.layout.menu_icon_row, null);
|
| + // Add click handlers for the header icons.
|
| + setIconRowEventHandlers(mIconRowView, mActivity);
|
| + updateBookmarkButton();
|
| +
|
| + // Icon row goes into header of List view.
|
| + ArrayList<FixedViewInfo> headerInfoList =
|
| + populateHeaderViewInfo(mActivity.getApplicationContext(), mIconRowView);
|
| +
|
| + HeaderViewListAdapter headerViewListAdapter = new HeaderViewListAdapter(
|
| + headerInfoList, null, mAdapter);
|
| + mPopup.setAdapter(headerViewListAdapter);
|
| + } else {
|
| + mPopup.setAdapter(mAdapter);
|
| + }
|
| +
|
| + // Get the height and width of the display.
|
| + Rect appRect = new Rect();
|
| + mActivity.getWindow().getDecorView().getWindowVisibleDisplayFrame(appRect);
|
| +
|
| + setMenuHeight(menuItems.size() + (mShowIconRow ? 1 : 0), appRect);
|
| + setPopupOffset(mPopup, mCurrentScreenRotation, appRect);
|
| + mPopup.setOnItemClickListener(this);
|
| + mPopup.show();
|
| + mPopup.getListView().setDividerHeight(mItemDividerHeight);
|
| +
|
| + mHandler.onMenuVisibilityChanged(true, getCurrentFocusedPosition());
|
| +
|
| + if (mVerticalFadeDistance > 0) {
|
| + mPopup.getListView().setVerticalFadingEdgeEnabled(true);
|
| + mPopup.getListView().setFadingEdgeLength(mVerticalFadeDistance);
|
| + }
|
| +
|
| + mPopup.getListView().setOnKeyListener(this);
|
| +
|
| + // Initiate drag related variables and listeners.
|
| + mLastTouchX = Float.NaN;
|
| + mLastTouchY = Float.NaN;
|
| + mDragScrollOffset = 0.0f;
|
| + mDragScrollOffsetRounded = 0;
|
| + mDragScrollingVelocity = 0.0f;
|
| +
|
| + mDragPending = isByHardwareButton;
|
| + mIsDownScrollable = !isByHardwareButton;
|
| + mIsUpScrollable = !isByHardwareButton;
|
| +
|
| + mTopTouchMovedBound = Float.POSITIVE_INFINITY;
|
| + mBottomTouchMovedBound = Float.NEGATIVE_INFINITY;
|
| + mHardwareMenuButtonUpTime = -1;
|
| +
|
| + // Handles dragging related logic.
|
| + mPopup.getListView().setOnTouchListener(mDragScrollTouchEventForwarder);
|
| +
|
| + // We assume that the parent of popup ListView is an instance of View. Otherwise, dragging
|
| + // from a hardware menu button won't work.
|
| + ViewParent listViewParent = mPopup.getListView().getParent();
|
| + if (listViewParent instanceof View) {
|
| + ((View) listViewParent).setOnTouchListener(mDragScrollTouchEventForwarder);
|
| + } else {
|
| + assert false;
|
| + }
|
| +
|
| + if (!isByHardwareButton && startDragging) mDragScrolling.start();
|
| + }
|
| +
|
| + private void setPopupOffset(ListPopupWindow popup, int screenRotation, Rect appRect) {
|
| + Rect paddingRect = new Rect();
|
| + popup.getBackground().getPadding(paddingRect);
|
| + int[] anchorLocation = new int[2];
|
| + popup.getAnchorView().getLocationInWindow(anchorLocation);
|
| +
|
| + // If we have a hardware menu button, locate the app menu closer to the estimated
|
| + // hardware menu button location.
|
| + if (mIsByHardwareButton) {
|
| + int horizontalOffset = -anchorLocation[0];
|
| + switch (screenRotation) {
|
| + case Surface.ROTATION_0:
|
| + case Surface.ROTATION_180:
|
| + horizontalOffset += (appRect.width() - mPopup.getWidth()) / 2;
|
| + break;
|
| + case Surface.ROTATION_90:
|
| + horizontalOffset += appRect.width() - mPopup.getWidth();
|
| + break;
|
| + case Surface.ROTATION_270:
|
| + break;
|
| + default:
|
| + assert false;
|
| + break;
|
| + }
|
| + popup.setHorizontalOffset(horizontalOffset);
|
| + // The menu is displayed above the anchored view, so shift the menu up by the top
|
| + // padding of the background.
|
| + popup.setVerticalOffset(mAdditionalVerticalOffset - paddingRect.bottom);
|
| + } else {
|
| + // The menu is displayed below the anchored view, so shift the menu up by the top
|
| + // padding of the background.
|
| + popup.setVerticalOffset(mAdditionalVerticalOffset - paddingRect.top);
|
| + }
|
| + }
|
| +
|
| + @Override
|
| + public boolean onKey(View v, int keyCode, KeyEvent event) {
|
| + if (mPopup == null || mPopup.getListView() == null) return false;
|
| +
|
| + ListView listView = mPopup.getListView();
|
| + if (KeyNavigationUtil.isGoUp(event)) {
|
| + int previousPosition = listView.getSelectedItemPosition();
|
| + boolean handled = mPopup.onKeyDown(keyCode, event);
|
| + if (listView.getSelectedItemPosition() == ListView.INVALID_POSITION) {
|
| + listView.setSelection(0);
|
| + }
|
| +
|
| + if (mShowIconRow && previousPosition == 1) {
|
| + // Clearing the selection is required to move into the icon row.
|
| + mPopup.clearListSelection();
|
| + requestFocusToEnabledIconRowButton();
|
| + }
|
| +
|
| + mHandler.onKeyboardFocusChanged(getCurrentFocusedPosition());
|
| + return handled;
|
| + } else if (KeyNavigationUtil.isGoDown(event)) {
|
| + boolean handled = mPopup.onKeyDown(keyCode, event);
|
| + if (listView.getSelectedItemPosition() == ListView.INVALID_POSITION) {
|
| + listView.setSelection(listView.getCount() - 1);
|
| + }
|
| + mHandler.onKeyboardFocusChanged(getCurrentFocusedPosition());
|
| + return handled;
|
| + } else if (KeyNavigationUtil.isEnter(event)) {
|
| + int position = getCurrentFocusedPosition();
|
| + if (mShowIconRow && position == 0) return false;
|
| +
|
| + int adjustedPosition = mShowIconRow ? position - 1 : position;
|
| + MenuItem clickedItem = mAdapter.getItem(adjustedPosition);
|
| + dismiss();
|
| + mActivity.onOptionsItemSelected(clickedItem);
|
| + mHandler.onKeyboardActivatedItem(position);
|
| + return true;
|
| + } else if (event.getKeyCode() == KeyEvent.KEYCODE_MENU) {
|
| + if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) {
|
| + event.startTracking();
|
| + v.getKeyDispatcherState().startTracking(event, this);
|
| + return true;
|
| + } else if (event.getAction() == KeyEvent.ACTION_UP) {
|
| + v.getKeyDispatcherState().handleUpEvent(event);
|
| + if (event.isTracking() && !event.isCanceled()) {
|
| + dismiss();
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| +
|
| + return false;
|
| + }
|
| +
|
| + /**
|
| + * @return Visible rect in screen coordinates for the given View.
|
| + */
|
| + private Rect getScreenVisibleRect(View view) {
|
| + view.getLocalVisibleRect(mScreenVisibleRect);
|
| + view.getLocationOnScreen(mScreenVisiblePoint);
|
| + mScreenVisibleRect.offset(mScreenVisiblePoint[0], mScreenVisiblePoint[1]);
|
| + return mScreenVisibleRect;
|
| + }
|
| +
|
| + /**
|
| + * This is a hint for adjusting edgeSwipeInSlop. For example. If the touch event started
|
| + * immediately after hardware menu button up, then we use larger edgeSwipeInSlop because it
|
| + * implies user is swiping in fast.
|
| + */
|
| + public void hardwareMenuButtonUp() {
|
| + // There should be only one time hardware menu button up.
|
| + assert mHardwareMenuButtonUpTime == -1;
|
| + mHardwareMenuButtonUpTime = SystemClock.uptimeMillis();
|
| + }
|
| +
|
| + /**
|
| + * @return The shortest distance from the screen edges for the given position rawX, rawY
|
| + * in screen coordinates.
|
| + */
|
| + private float getShortestDistanceFromEdge(float rawX, float rawY) {
|
| + Display display = mActivity.getWindowManager().getDefaultDisplay();
|
| + Point displaySize = new Point();
|
| + display.getSize(displaySize);
|
| +
|
| + float distance = Math.min(
|
| + Math.min(rawY, displaySize.y - rawY - 1),
|
| + Math.min(rawX, displaySize.x - rawX - 1));
|
| + if (distance < 0.0f) {
|
| + Log.d(TAG, "Received touch event out of the screen edge boundary. distance = " +
|
| + distance);
|
| + }
|
| + return Math.abs(distance);
|
| + }
|
| +
|
| + /**
|
| + * @return The distance from the screen edge that is likely where the hardware menu button is
|
| + * located at. We assume the hardware menu button is at the bottom in the default,
|
| + * ROTATION_0, rotation. Note that there is a bug filed for Android API to request
|
| + * hardware menu button position b/10007237.
|
| + */
|
| + private float getDistanceFromHardwareMenuButtonSideEdge(float rawX, float rawY) {
|
| + Display display = mActivity.getWindowManager().getDefaultDisplay();
|
| + Point displaySize = new Point();
|
| + display.getSize(displaySize);
|
| +
|
| + float distance;
|
| + switch (mCurrentScreenRotation) {
|
| + case Surface.ROTATION_0:
|
| + distance = displaySize.y - rawY - 1;
|
| + break;
|
| + case Surface.ROTATION_180:
|
| + distance = rawY;
|
| + break;
|
| + case Surface.ROTATION_90:
|
| + distance = displaySize.x - rawX - 1;
|
| + break;
|
| + case Surface.ROTATION_270:
|
| + distance = rawX;
|
| + break;
|
| + default:
|
| + distance = 0.0f;
|
| + assert false;
|
| + break;
|
| + }
|
| + if (distance < 0.0f) {
|
| + Log.d(TAG, "Received touch event out of hardware menu button side edge boundary." +
|
| + " distance = " + distance);
|
| + }
|
| + return Math.abs(distance);
|
| + }
|
| +
|
| + /**
|
| + * @return Whether or not the position should be considered swiping-out, if ACTION_UP happens
|
| + * at the position.
|
| + */
|
| + private boolean isInSwipeOutRegion(float rawX, float rawY) {
|
| + return getShortestDistanceFromEdge(rawX, rawY) < mEdgeSwipeOutSlop;
|
| + }
|
| +
|
| + /**
|
| + * Computes Edge-swipe-in-slop and returns it.
|
| + *
|
| + * When user swipes in from a hardware menu button, because the swiping-in touch event doesn't
|
| + * necessarily start form the exact edge, we should also consider slightly more inside touch
|
| + * event as swiping-in. This value, Edge-swipe-in-slop, is the threshold distance from the
|
| + * edge that separates swiping-in and normal touch.
|
| + *
|
| + * @param event Touch event that eventually made this call.
|
| + * @return Edge-swipe-in-slop.
|
| + */
|
| + private float getEdgeSwipeInSlop(MotionEvent event) {
|
| + float edgeSwipeInSlope = mEdgeSwipeInSlop;
|
| + if (mHardwareMenuButtonUpTime == -1) {
|
| + // Hardware menu hasn't even had UP event yet. That means, user is swiping in really
|
| + // really fast. So use large edgeSwipeInSlope.
|
| + edgeSwipeInSlope += mEdgeSwipeInAdditionalSlop;
|
| + } else {
|
| + // If it's right after we had hardware menu button UP event, use large edgeSwipeInSlop,
|
| + // Otherwise, use small edgeSwipeInSlop.
|
| + float additionalEdgeSwipeInSlop = ((mHardwareMenuButtonUpTime - event.getEventTime()
|
| + + EDGE_SWIPE_IN_ADDITIONAL_SLOP_TIME_MS) * 0.001f)
|
| + * mEdgeSwipeInAdditionalSlop;
|
| + edgeSwipeInSlope += Math.max(0.0f, additionalEdgeSwipeInSlop);
|
| + }
|
| + return edgeSwipeInSlope;
|
| + }
|
| +
|
| + /**
|
| + * Gets all the touch events and updates dragging related logic. Note that if this app menu
|
| + * is initiated by software UI control, then the control should set onTouchListener and forward
|
| + * all the events to this method because the initial UI control that processed ACTION_DOWN will
|
| + * continue to get all the subsequent events.
|
| + *
|
| + * @param event Touch event to be processed.
|
| + * @return Whether the event is handled.
|
| + */
|
| + boolean handleDragging(MotionEvent event) {
|
| + if (!isShowing() || (!mDragPending && !mDragScrolling.isRunning())) return false;
|
| +
|
| + // We will only use the screen space coordinate (rawX, rawY) to reduce confusion.
|
| + // This code works across many different controls, so using local coordinates will be
|
| + // a disaster.
|
| +
|
| + final float rawX = event.getRawX();
|
| + final float rawY = event.getRawY();
|
| + final int roundedRawX = Math.round(rawX);
|
| + final int roundedRawY = Math.round(rawY);
|
| + final int eventActionMasked = event.getActionMasked();
|
| + final ListView listView = mPopup.getListView();
|
| +
|
| + mLastTouchX = rawX;
|
| + mLastTouchY = rawY;
|
| +
|
| + // Because (hardware) menu button can be right or left side of the screen, if we just
|
| + // trigger auto scrolling based on Y inside the listView, it might be scrolled
|
| + // unintentionally. Therefore, we will require touch position to move up or down a certain
|
| + // amount of distance to trigger auto scrolling up or down.
|
| + mTopTouchMovedBound = Math.min(mTopTouchMovedBound, rawY);
|
| + mBottomTouchMovedBound = Math.max(mBottomTouchMovedBound, rawY);
|
| + if (rawY <= mBottomTouchMovedBound - mScaledTouchSlop) {
|
| + mIsUpScrollable = true;
|
| + }
|
| + if (rawY >= mTopTouchMovedBound + mScaledTouchSlop) {
|
| + mIsDownScrollable = true;
|
| + }
|
| +
|
| + if (eventActionMasked == MotionEvent.ACTION_CANCEL) {
|
| + dismiss();
|
| + return true;
|
| + }
|
| +
|
| + if (eventActionMasked == MotionEvent.ACTION_DOWN) {
|
| + assert mIsByHardwareButton != mDragScrolling.isStarted();
|
| + if (mIsByHardwareButton) {
|
| + if (mDragPending && getDistanceFromHardwareMenuButtonSideEdge(rawX, rawY) <
|
| + getEdgeSwipeInSlop(event)) {
|
| + mDragScrolling.start();
|
| + mDragPending = false;
|
| + UmaBridge.usingMenu(true, true);
|
| + } else {
|
| + if (!getScreenVisibleRect(listView).contains(roundedRawX, roundedRawY)) {
|
| + dismiss();
|
| + }
|
| + mDragPending = false;
|
| + UmaBridge.usingMenu(true, false);
|
| + return false;
|
| + }
|
| + }
|
| + }
|
| +
|
| + // After this line, drag scrolling is happening.
|
| + if (!mDragScrolling.isRunning()) return false;
|
| +
|
| + boolean didPerformClick = false;
|
| + int itemAction = ITEM_ACTION_CLEAR_HIGHLIGHT_ALL;
|
| + if (!isInSwipeOutRegion(rawX, rawY)) {
|
| + switch (eventActionMasked) {
|
| + case MotionEvent.ACTION_DOWN:
|
| + case MotionEvent.ACTION_MOVE:
|
| + itemAction = ITEM_ACTION_HIGHLIGHT;
|
| + break;
|
| + case MotionEvent.ACTION_UP:
|
| + itemAction = ITEM_ACTION_PERFORM;
|
| + break;
|
| + default:
|
| + break;
|
| + }
|
| + }
|
| + didPerformClick = menuItemAction(roundedRawX, roundedRawY, itemAction);
|
| +
|
| + if (eventActionMasked == MotionEvent.ACTION_UP && !didPerformClick) {
|
| + dismiss();
|
| + } else if (eventActionMasked == MotionEvent.ACTION_MOVE) {
|
| + // Auto scrolling on the top or the bottom of the listView.
|
| + if (listView.getHeight() > 0) {
|
| + float autoScrollAreaRatio = Math.min(AUTO_SCROLL_AREA_MAX_RATIO,
|
| + mItemRowHeight * 1.2f / listView.getHeight());
|
| + float normalizedY =
|
| + (rawY - getScreenVisibleRect(listView).top) / listView.getHeight();
|
| + if (mIsUpScrollable && normalizedY < autoScrollAreaRatio) {
|
| + // Top
|
| + mDragScrollingVelocity = (normalizedY / autoScrollAreaRatio - 1.0f)
|
| + * mAutoScrollFullVelocity;
|
| + } else if (mIsDownScrollable && normalizedY > 1.0f - autoScrollAreaRatio) {
|
| + // Bottom
|
| + mDragScrollingVelocity = ((normalizedY - 1.0f) / autoScrollAreaRatio + 1.0f)
|
| + * mAutoScrollFullVelocity;
|
| + } else {
|
| + // Middle or not scrollable.
|
| + mDragScrollingVelocity = 0.0f;
|
| + }
|
| + }
|
| + }
|
| +
|
| + return true;
|
| + }
|
| +
|
| + /**
|
| + * Performs the specified action on the menu item specified by the screen coordinate position.
|
| + * @param screenX X in screen space coordinate.
|
| + * @param screenY Y in screen space coordinate.
|
| + * @param action Action type to perform, it should be one of ITEM_ACTION_* constants.
|
| + * @return true whether or not a menu item is performed (executed).
|
| + */
|
| + private boolean menuItemAction(int screenX, int screenY, int action) {
|
| + ListView listView = mPopup.getListView();
|
| +
|
| + ArrayList<View> itemViews = new ArrayList<View>();
|
| + for (int i = 0; i < listView.getChildCount(); ++i) {
|
| + itemViews.add(listView.getChildAt(i));
|
| + }
|
| +
|
| + if (mIconRowView != null && mShowIconRow) {
|
| + itemViews.add(mIconRowView.findViewById(R.id.menu_item_back));
|
| + itemViews.add(mIconRowView.findViewById(R.id.menu_item_forward));
|
| + itemViews.add(mIconRowView.findViewById(R.id.menu_item_bookmark));
|
| + }
|
| +
|
| + boolean didPerformClick = false;
|
| + for (int i = 0; i < itemViews.size(); ++i) {
|
| + View itemView = itemViews.get(i);
|
| +
|
| + // Skip the icon row that belongs to the listView because that doesn't really
|
| + // exist as an item.
|
| + int listViewPositionIndex = listView.getFirstVisiblePosition() + i;
|
| + if (mShowIconRow && listViewPositionIndex == 0) continue;
|
| +
|
| + boolean shouldPerform = itemView.isEnabled() && itemView.isShown() &&
|
| + getScreenVisibleRect(itemView).contains(screenX, screenY);
|
| +
|
| + switch (action) {
|
| + case ITEM_ACTION_HIGHLIGHT:
|
| + itemView.setPressed(shouldPerform);
|
| + break;
|
| + case ITEM_ACTION_PERFORM:
|
| + if (shouldPerform) {
|
| + if (itemView.getParent() == listView) {
|
| + listView.performItemClick(itemView, listViewPositionIndex, 0);
|
| + } else {
|
| + itemView.performClick();
|
| + }
|
| + didPerformClick = true;
|
| + }
|
| + break;
|
| + case ITEM_ACTION_CLEAR_HIGHLIGHT_ALL:
|
| + itemView.setPressed(false);
|
| + break;
|
| + default:
|
| + assert false;
|
| + break;
|
| + }
|
| + }
|
| + return didPerformClick;
|
| + }
|
| +
|
| + /**
|
| + * Requests focus whichever button in icon row is enabled from the left.
|
| + */
|
| + private void requestFocusToEnabledIconRowButton() {
|
| + View backView = mIconRowView.findViewById(R.id.menu_item_back);
|
| + View forwardView = mIconRowView.findViewById(R.id.menu_item_forward);
|
| + View bookmarkView = mIconRowView.findViewById(R.id.menu_item_bookmark);
|
| + if (backView.isFocusable()) {
|
| + backView.requestFocus();
|
| + } else if (forwardView.isFocusable()) {
|
| + forwardView.requestFocus();
|
| + } else {
|
| + bookmarkView.requestFocus();
|
| + }
|
| + }
|
| +
|
| + private void setMenuHeight(int numMenuItems, Rect appDimensions) {
|
| + assert mPopup.getAnchorView() != null;
|
| + View anchorView = mPopup.getAnchorView();
|
| + int[] anchorViewLocation = new int[2];
|
| + anchorView.getLocationOnScreen(anchorViewLocation);
|
| + anchorViewLocation[1] -= appDimensions.top;
|
| +
|
| + int availableScreenSpace = Math.max(anchorViewLocation[1],
|
| + appDimensions.height() - anchorViewLocation[1] - anchorView.getHeight());
|
| +
|
| + Rect padding = new Rect();
|
| + mPopup.getBackground().getPadding(padding);
|
| +
|
| + if (mIsByHardwareButton) {
|
| + availableScreenSpace -= padding.top;
|
| + } else {
|
| + availableScreenSpace -= padding.bottom;
|
| + }
|
| +
|
| + int numCanFit = availableScreenSpace / (mItemRowHeight + mItemDividerHeight);
|
| +
|
| + // Fade out the last item if we cannot fit all items.
|
| + if (numCanFit < numMenuItems) {
|
| + int spaceForFullItems = numCanFit * (mItemRowHeight + mItemDividerHeight);
|
| + int spaceForPartialItem = (int) (LAST_ITEM_SHOW_FRACTION * mItemRowHeight);
|
| + // Determine which item needs hiding.
|
| + if (spaceForFullItems + spaceForPartialItem < availableScreenSpace) {
|
| + mPopup.setHeight(spaceForFullItems + spaceForPartialItem +
|
| + padding.top + padding.bottom);
|
| + } else {
|
| + mPopup.setHeight(spaceForFullItems - mItemRowHeight + spaceForPartialItem +
|
| + padding.top + padding.bottom);
|
| + }
|
| + } else {
|
| + mPopup.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
|
| + }
|
| + }
|
| +
|
| + private ArrayList<FixedViewInfo> populateHeaderViewInfo(Context context, View headerView) {
|
| + ArrayList<FixedViewInfo> headerInfoList = new ArrayList<FixedViewInfo>();
|
| + ListView lv = new ListView(context);
|
| + FixedViewInfo viewInfo = lv.new FixedViewInfo();
|
| + viewInfo.view = headerView;
|
| + // Make header not selectable, we handle the clicks on our own.
|
| + viewInfo.isSelectable = false;
|
| + headerInfoList.add(viewInfo);
|
| + return headerInfoList;
|
| + }
|
| +
|
| + /**
|
| + * Adds click handlers for items in the icon row.
|
| + * Also disable/enable the view based on the menu item.
|
| + * We assume that we have Back, Forward and Bookmark-star icons in this view.
|
| + */
|
| + private void setIconRowEventHandlers(View iconRowView, final Activity activity) {
|
| + final MenuItem backMenuItem = mMenu.findItem(R.id.back_menu_id);
|
| + final MenuItem forwardMenuItem = mMenu.findItem(R.id.forward_menu_id);
|
| + final MenuItem bookmarkMenuItem = mMenu.findItem(R.id.bookmark_this_page_id);
|
| +
|
| + View.OnFocusChangeListener focusListener = new View.OnFocusChangeListener() {
|
| + @Override
|
| + public void onFocusChange(View v, boolean hasFocus) {
|
| + mHandler.onKeyboardFocusChanged(getCurrentFocusedPosition());
|
| + }
|
| + };
|
| +
|
| + OnKeyListener keyListener = new OnKeyListener() {
|
| + @Override
|
| + public boolean onKey(View v, int keyCode, KeyEvent event) {
|
| + if (isShowing() && v.isFocused()) {
|
| + if (keyCode == KeyEvent.KEYCODE_MENU) {
|
| + v.setSelected(false);
|
| + dismiss();
|
| + return true;
|
| + } else if (KeyNavigationUtil.isGoUp(event)) {
|
| + // Catch attempts to move out of bounds.
|
| + mHandler.onKeyboardFocusChanged(getCurrentFocusedPosition());
|
| + return true;
|
| + } else if (KeyNavigationUtil.isGoDown(event)) {
|
| + // Requesting focus on the mPopup.getListView().getChildAt(0) does not work.
|
| + // Requesting the focus on the ListView focuses the first non-header item.
|
| + mPopup.getListView().requestFocus();
|
| + mHandler.onKeyboardFocusChanged(getCurrentFocusedPosition());
|
| + return true;
|
| + } else if (KeyNavigationUtil.isEnter(event)) {
|
| + mHandler.onKeyboardActivatedItem(getCurrentFocusedPosition());
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| + };
|
| +
|
| + View backIcon = iconRowView.findViewById(R.id.menu_item_back);
|
| + backIcon.setEnabled(backMenuItem.isEnabled());
|
| + backIcon.setFocusable(backMenuItem.isEnabled());
|
| + backIcon.setOnKeyListener(keyListener);
|
| + backIcon.setOnFocusChangeListener(focusListener);
|
| + backIcon.setOnTouchListener(mDragScrollTouchEventForwarder);
|
| + backIcon.setOnClickListener(new OnClickListener() {
|
| + @Override
|
| + public void onClick(View v) {
|
| + dismiss();
|
| + activity.onOptionsItemSelected(backMenuItem);
|
| + }
|
| + });
|
| +
|
| + View forwardIcon = iconRowView.findViewById(R.id.menu_item_forward);
|
| + forwardIcon.setEnabled(forwardMenuItem.isEnabled());
|
| + forwardIcon.setFocusable(forwardMenuItem.isEnabled());
|
| + forwardIcon.setOnKeyListener(keyListener);
|
| + forwardIcon.setOnFocusChangeListener(focusListener);
|
| + forwardIcon.setOnTouchListener(mDragScrollTouchEventForwarder);
|
| + forwardIcon.setOnClickListener(new OnClickListener() {
|
| + @Override
|
| + public void onClick(View v) {
|
| + dismiss();
|
| + activity.onOptionsItemSelected(forwardMenuItem);
|
| + }
|
| + });
|
| +
|
| + // The bookmark button is assumed to be always enabled and focusable when navigating the
|
| + // menu using a keyboard.
|
| + mBookmarkButton = (ImageButton) iconRowView.findViewById(R.id.menu_item_bookmark);
|
| + mBookmarkButton.setEnabled(BookmarksBridge.isEditBookmarksEnabled());
|
| + mBookmarkButton.setOnKeyListener(keyListener);
|
| + mBookmarkButton.setOnFocusChangeListener(focusListener);
|
| + mBookmarkButton.setOnTouchListener(mDragScrollTouchEventForwarder);
|
| + mBookmarkButton.setOnClickListener(new OnClickListener() {
|
| + @Override
|
| + public void onClick(View v) {
|
| + dismiss();
|
| + activity.onOptionsItemSelected(bookmarkMenuItem);
|
| + }
|
| + });
|
| + }
|
| +
|
| + /**
|
| + * Dismisses the app menu and cancels the drag-to-scroll if it is taking place.
|
| + */
|
| + void dismiss() {
|
| + mDragScrolling.cancel();
|
| + if (isShowing()) {
|
| + mPopup.dismiss();
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * @return Whether the app menu is currently showing.
|
| + */
|
| + public boolean isShowing() {
|
| + if (mPopup == null) {
|
| + return false;
|
| + }
|
| + return mPopup.isShowing();
|
| + }
|
| +
|
| + private int getCurrentFocusedPosition() {
|
| + if (mPopup == null || mPopup.getListView() == null) return ListView.INVALID_POSITION;
|
| + ListView listView = mPopup.getListView();
|
| + int position = listView.getSelectedItemPosition();
|
| +
|
| + // Check if any of the icon row icons are focused.
|
| + if (mShowIconRow) {
|
| + if (mIconRowView.findViewById(R.id.menu_item_back).isFocused() ||
|
| + mIconRowView.findViewById(R.id.menu_item_forward).isFocused() ||
|
| + mBookmarkButton.isFocused()) {
|
| + return 0;
|
| + }
|
| + }
|
| + return position;
|
| + }
|
| +
|
| + @Override
|
| + public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
|
| + // Account for header. MenuAdapter does not know about header,
|
| + // but the 'position' includes the header.
|
| + int adjustedPosition = mShowIconRow ? position - 1 : position;
|
| + MenuItem clickedItem = mAdapter.getItem(adjustedPosition);
|
| + if (clickedItem.isEnabled()) {
|
| + dismiss();
|
| + mActivity.onOptionsItemSelected(clickedItem);
|
| + }
|
| + }
|
| +
|
| + @VisibleForTesting
|
| + int getCount() {
|
| + if (mPopup == null || mPopup.getListView() == null) return 0;
|
| + return mPopup.getListView().getCount();
|
| + }
|
| +
|
| + /**
|
| + * ListAdapter to customize the view of items in the list.
|
| + */
|
| + private static class MenuAdapter extends BaseAdapter {
|
| + private static final int VIEW_TYPE_MENUITEM = 0;
|
| + private static final int VIEW_TYPE_COUNT = 1;
|
| +
|
| + private final LayoutInflater mInflater;
|
| + private final List<MenuItem> mMenuItems;
|
| + private final int mNumMenuItems;
|
| +
|
| + public MenuAdapter(List<MenuItem> menuItems, LayoutInflater inflater) {
|
| + mMenuItems = menuItems;
|
| + mInflater = inflater;
|
| + mNumMenuItems = menuItems.size();
|
| + }
|
| +
|
| + @Override
|
| + public int getCount() {
|
| + return mNumMenuItems;
|
| + }
|
| +
|
| + @Override
|
| + public int getViewTypeCount() {
|
| + return VIEW_TYPE_COUNT;
|
| + }
|
| +
|
| + @Override
|
| + public int getItemViewType(int position) {
|
| + return VIEW_TYPE_MENUITEM;
|
| + }
|
| +
|
| + @Override
|
| + public long getItemId(int position) {
|
| + return getItem(position).getItemId();
|
| + }
|
| +
|
| + @Override
|
| + public MenuItem getItem(int position) {
|
| + if (position == ListView.INVALID_POSITION) return null;
|
| + assert position >= 0;
|
| + assert position < mMenuItems.size();
|
| + return mMenuItems.get(position);
|
| + }
|
| +
|
| + @Override
|
| + public View getView(int position, View convertView, ViewGroup parent) {
|
| + View rowView = convertView;
|
| + // A ViewHolder keeps references to children views to avoid unneccessary calls
|
| + // to findViewById() on each row.
|
| + ViewHolder holder = null;
|
| +
|
| + // When convertView is not null, we can reuse it directly, there is no need
|
| + // to reinflate it.
|
| + if (rowView == null) {
|
| + holder = new ViewHolder();
|
| + rowView = mInflater.inflate(R.layout.menu_item, null);
|
| + holder.text = (TextView) rowView.findViewById(R.id.menu_item_text);
|
| + holder.image = (MenuItemIcon) rowView.findViewById(R.id.menu_item_icon);
|
| + rowView.setTag(holder);
|
| + } else {
|
| + holder = (ViewHolder) convertView.getTag();
|
| + }
|
| + MenuItem item = getItem(position);
|
| +
|
| + // Set up the icon.
|
| + Drawable icon = item.getIcon();
|
| + holder.image.setImageDrawable(icon);
|
| + holder.image.setVisibility(icon == null ? View.GONE : View.VISIBLE);
|
| + holder.image.setChecked(item.isChecked());
|
| +
|
| + holder.text.setText(item.getTitle());
|
| + boolean isEnabled = item.isEnabled();
|
| + // Set the text color (using a color state list).
|
| + holder.text.setEnabled(isEnabled);
|
| + // This will ensure that the item is not highlighted when selected.
|
| + rowView.setEnabled(isEnabled);
|
| + return rowView;
|
| + }
|
| +
|
| + static class ViewHolder {
|
| + TextView text;
|
| + MenuItemIcon image;
|
| + }
|
| + }
|
| +
|
| + /**
|
| + * A menu icon that supports the checkable state.
|
| + */
|
| + static class MenuItemIcon extends ImageView {
|
| + private static final int[] CHECKED_STATE_SET = new int[] {android.R.attr.state_checked};
|
| + private boolean mCheckedState;
|
| +
|
| + public MenuItemIcon(Context context, AttributeSet attrs) {
|
| + super(context, attrs);
|
| + }
|
| +
|
| + /**
|
| + * Sets whether the item is checked and refreshes the View if necessary.
|
| + */
|
| + protected void setChecked(boolean state) {
|
| + if (state == mCheckedState) return;
|
| + mCheckedState = state;
|
| + refreshDrawableState();
|
| + }
|
| +
|
| + @Override
|
| + public void setPressed(boolean state) {
|
| + // We don't want to highlight the checkbox icon since the parent item is already
|
| + // highlighted.
|
| + return;
|
| + }
|
| +
|
| + @Override
|
| + public int[] onCreateDrawableState(int extraSpace) {
|
| + final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
|
| + if (mCheckedState) {
|
| + mergeDrawableStates(drawableState, CHECKED_STATE_SET);
|
| + }
|
| + return drawableState;
|
| + }
|
| + }
|
| +}
|
|
|
Chromium Code Reviews
