mobile/android/base/widget/ArrowPopup.java@6474c204b198 (annotated)
mobile/android/base/widget/ArrowPopup.java
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | package org.mozilla.gecko.widget; |
| michael@0 | 7 | |
| michael@0 | 8 | import org.mozilla.gecko.GeckoApp; |
| michael@0 | 9 | import org.mozilla.gecko.R; |
| michael@0 | 10 | import org.mozilla.gecko.util.HardwareUtils; |
| michael@0 | 11 | |
| michael@0 | 12 | import android.content.res.Resources; |
| michael@0 | 13 | import android.graphics.drawable.BitmapDrawable; |
| michael@0 | 14 | import android.os.Build; |
| michael@0 | 15 | import android.view.Gravity; |
| michael@0 | 16 | import android.view.LayoutInflater; |
| michael@0 | 17 | import android.view.View; |
| michael@0 | 18 | import android.view.ViewGroup; |
| michael@0 | 19 | import android.widget.ImageView; |
| michael@0 | 20 | import android.widget.LinearLayout; |
| michael@0 | 21 | import android.widget.PopupWindow; |
| michael@0 | 22 | import android.widget.RelativeLayout; |
| michael@0 | 23 | |
| michael@0 | 24 | public class ArrowPopup extends PopupWindow { |
| michael@0 | 25 | protected final GeckoApp mActivity; |
| michael@0 | 26 | |
| michael@0 | 27 | private View mAnchor; |
| michael@0 | 28 | private ImageView mArrow; |
| michael@0 | 29 | |
| michael@0 | 30 | private int mArrowWidth; |
| michael@0 | 31 | private int mYOffset; |
| michael@0 | 32 | |
| michael@0 | 33 | protected LinearLayout mContent; |
| michael@0 | 34 | protected boolean mInflated; |
| michael@0 | 35 | |
| michael@0 | 36 | public ArrowPopup(GeckoApp aActivity) { |
| michael@0 | 37 | this(aActivity, null); |
| michael@0 | 38 | } |
| michael@0 | 39 | |
| michael@0 | 40 | public ArrowPopup(GeckoApp activity, View anchor) { |
| michael@0 | 41 | super(activity); |
| michael@0 | 42 | mActivity = activity; |
| michael@0 | 43 | mAnchor = anchor; |
| michael@0 | 44 | |
| michael@0 | 45 | mInflated = false; |
| michael@0 | 46 | |
| michael@0 | 47 | final Resources res = activity.getResources(); |
| michael@0 | 48 | mArrowWidth = res.getDimensionPixelSize(R.dimen.menu_popup_arrow_width); |
| michael@0 | 49 | mYOffset = res.getDimensionPixelSize(R.dimen.menu_popup_arrow_offset); |
| michael@0 | 50 | |
| michael@0 | 51 | setAnimationStyle(R.style.PopupAnimation); |
| michael@0 | 52 | } |
| michael@0 | 53 | |
| michael@0 | 54 | public void setAnchor(View anchor) { |
| michael@0 | 55 | mAnchor = anchor; |
| michael@0 | 56 | } |
| michael@0 | 57 | |
| michael@0 | 58 | protected void init() { |
| michael@0 | 59 | setBackgroundDrawable(new BitmapDrawable()); |
| michael@0 | 60 | setOutsideTouchable(true); |
| michael@0 | 61 | |
| michael@0 | 62 | setWindowLayoutMode(HardwareUtils.isTablet() ? ViewGroup.LayoutParams.WRAP_CONTENT : ViewGroup.LayoutParams.FILL_PARENT, |
| michael@0 | 63 | ViewGroup.LayoutParams.WRAP_CONTENT); |
| michael@0 | 64 | |
| michael@0 | 65 | LayoutInflater inflater = LayoutInflater.from(mActivity); |
| michael@0 | 66 | RelativeLayout layout = (RelativeLayout) inflater.inflate(R.layout.arrow_popup, null); |
| michael@0 | 67 | setContentView(layout); |
| michael@0 | 68 | |
| michael@0 | 69 | mArrow = (ImageView) layout.findViewById(R.id.arrow); |
| michael@0 | 70 | mContent = (LinearLayout) layout.findViewById(R.id.content); |
| michael@0 | 71 | |
| michael@0 | 72 | mInflated = true; |
| michael@0 | 73 | } |
| michael@0 | 74 | |
| michael@0 | 75 | /* |
| michael@0 | 76 | * Shows the popup with the arrow pointing to the center of the anchor view. If an anchor hasn't |
| michael@0 | 77 | * been set or isn't visible, the popup will just be shown at the top of the gecko app view. |
| michael@0 | 78 | */ |
| michael@0 | 79 | public void show() { |
| michael@0 | 80 | int[] anchorLocation = new int[2]; |
| michael@0 | 81 | if (mAnchor != null) |
| michael@0 | 82 | mAnchor.getLocationInWindow(anchorLocation); |
| michael@0 | 83 | |
| michael@0 | 84 | // If there's no anchor or the anchor is out of the window bounds, |
| michael@0 | 85 | // just show the popup at the top of the gecko app view. |
| michael@0 | 86 | if (mAnchor == null || anchorLocation[1] < 0) { |
| michael@0 | 87 | final View view = mActivity.getView(); |
| michael@0 | 88 | |
| michael@0 | 89 | // Bug in android code causes the window layout parameters to be ignored |
| michael@0 | 90 | // when using showAtLocation() in Gingerbread phones. |
| michael@0 | 91 | if (Build.VERSION.SDK_INT < 11) { |
| michael@0 | 92 | setWidth(view.getWidth()); |
| michael@0 | 93 | setHeight(view.getHeight()); |
| michael@0 | 94 | } |
| michael@0 | 95 | |
| michael@0 | 96 | showAtLocation(view, Gravity.TOP, 0, 0); |
| michael@0 | 97 | return; |
| michael@0 | 98 | } |
| michael@0 | 99 | |
| michael@0 | 100 | // Remove padding from the width of the anchor when calculating the arrow offset. |
| michael@0 | 101 | int anchorWidth = mAnchor.getWidth() - mAnchor.getPaddingLeft() - mAnchor.getPaddingRight(); |
| michael@0 | 102 | // This is the difference between the edge of the anchor view and the edge of the arrow view. |
| michael@0 | 103 | // We're making an assumption here that the anchor view is wider than the arrow view. |
| michael@0 | 104 | int arrowOffset = (anchorWidth - mArrowWidth)/2 + mAnchor.getPaddingLeft(); |
| michael@0 | 105 | |
| michael@0 | 106 | // The horizontal offset of the popup window, relative to the left side of the anchor view. |
| michael@0 | 107 | int offset = 0; |
| michael@0 | 108 | |
| michael@0 | 109 | RelativeLayout.LayoutParams arrowLayoutParams = (RelativeLayout.LayoutParams) mArrow.getLayoutParams(); |
| michael@0 | 110 | |
| michael@0 | 111 | if (HardwareUtils.isTablet()) { |
| michael@0 | 112 | // On tablets, the popup has a fixed width, so we use a horizontal offset to position it. |
| michael@0 | 113 | // The arrow's left margin is set by the arrow_popup.xml layout file. |
| michael@0 | 114 | // This assumes that anchor is not too close to the right side of the screen. |
| michael@0 | 115 | offset = arrowOffset - arrowLayoutParams.leftMargin; |
| michael@0 | 116 | } else { |
| michael@0 | 117 | // On phones, the popup takes up the width of the screen, so we set the arrow's left |
| michael@0 | 118 | // margin to make it line up with the anchor. |
| michael@0 | 119 | int leftMargin = anchorLocation[0] + arrowOffset; |
| michael@0 | 120 | arrowLayoutParams.setMargins(leftMargin, 0, 0, 0); |
| michael@0 | 121 | } |
| michael@0 | 122 | |
| michael@0 | 123 | if (isShowing()) { |
| michael@0 | 124 | update(mAnchor, offset, -mYOffset, -1, -1); |
| michael@0 | 125 | } else { |
| michael@0 | 126 | showAsDropDown(mAnchor, offset, -mYOffset); |
| michael@0 | 127 | } |
| michael@0 | 128 | } |
| michael@0 | 129 | } |
