1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.email.activity; 18 19 import com.android.email.R; 20 import com.android.emailcommon.provider.Account; 21 import com.android.emailcommon.provider.Mailbox; 22 23 import android.content.Context; 24 import android.content.res.Resources; 25 import android.graphics.drawable.Drawable; 26 import android.util.AttributeSet; 27 import android.widget.RelativeLayout; 28 import android.widget.TextView; 29 30 public class MailboxListItem extends RelativeLayout { 31 // Colors used for drop targets 32 private static Integer sDropUnavailableFgColor; 33 private static Integer sDropAvailableBgColor; 34 private static Integer sTextPrimaryColor; 35 private static Integer sTextSecondaryColor; 36 private static Integer sDropTrashBgColor; 37 38 /** 39 * Owner account ID for the mailbox, {@link Account#ACCOUNT_ID_COMBINED_VIEW} for a combined 40 * mailbox, or the ID for the current account, if it's an account row. 41 */ 42 public long mAccountId; 43 44 /** 45 * ID for the current mailbox, or {@link Mailbox#NO_MAILBOX} if it's an account row. 46 */ 47 public long mMailboxId; 48 public Integer mMailboxType; 49 /** If {@code true} this item can be used as a drop target. Otherwise, drop is prohibited. */ 50 public boolean mIsValidDropTarget; 51 /** If {@code true} this item can be navigated to. Otherwise, it can just be selected. */ 52 public boolean mIsNavigable; 53 public MailboxFragmentAdapter mAdapter; 54 55 private Drawable mBackground; 56 private TextView mLabelName; 57 private TextView mLabelCount; 58 59 /** 60 * Drawable for an active item for D&D. Note the drawable has state, so we can't share it 61 * between items. 62 * DO NOT use this directly; use {@link #getDropActiveBgDrawable()} instead, as it's lazily- 63 * initialized. 64 */ 65 private Drawable mDropActiveBgDrawable; 66 MailboxListItem(Context context)67 public MailboxListItem(Context context) { 68 super(context); 69 } 70 MailboxListItem(Context context, AttributeSet attrs)71 public MailboxListItem(Context context, AttributeSet attrs) { 72 super(context, attrs); 73 } 74 MailboxListItem(Context context, AttributeSet attrs, int defStyle)75 public MailboxListItem(Context context, AttributeSet attrs, int defStyle) { 76 super(context, attrs, defStyle); 77 } 78 79 @Override onFinishInflate()80 protected void onFinishInflate() { 81 super.onFinishInflate(); 82 mBackground = getBackground(); 83 if (sDropAvailableBgColor == null) { 84 Resources res = getResources(); 85 sDropAvailableBgColor = res.getColor(R.color.mailbox_drop_available_bg_color); 86 sDropUnavailableFgColor = res.getColor(R.color.mailbox_drop_unavailable_fg_color); 87 sDropTrashBgColor = res.getColor(R.color.mailbox_drop_destructive_bg_color); 88 sTextPrimaryColor = res.getColor(R.color.text_primary_color); 89 sTextSecondaryColor = res.getColor(R.color.text_secondary_color); 90 } 91 mLabelName = (TextView)findViewById(R.id.mailbox_name); 92 mLabelCount = (TextView)findViewById(R.id.message_count); 93 } 94 95 /** 96 * Whether or not this mailbox item is a drop target. Only valid mailboxes or those 97 * not forbidden by the system (see {@link Mailbox#INVALID_DROP_TARGETS}) will return 98 * {@code true}. 99 */ isDropTarget(long itemMailboxId)100 public boolean isDropTarget(long itemMailboxId) { 101 return mIsValidDropTarget && (itemMailboxId != mMailboxId); 102 } 103 104 /** 105 * Returns whether or not this item can be navigated to. 106 */ isNavigable()107 public boolean isNavigable() { 108 return mIsNavigable; 109 } 110 getDropActiveBgDrawable()111 private Drawable getDropActiveBgDrawable() { 112 if (mDropActiveBgDrawable == null) { 113 mDropActiveBgDrawable = 114 getContext().getResources().getDrawable(R.drawable.list_activated_holo); 115 } 116 return mDropActiveBgDrawable; 117 } 118 119 @Override setBackgroundDrawable(Drawable d)120 public void setBackgroundDrawable(Drawable d) { 121 // Don't override with the same instance. 122 // If we don't do the check, something bad will happen to the fade-out animation for 123 // the selected to non-selected transition. (Looks like if you re-set the same 124 // StateListDrawable instance, it'll get confused.) 125 if (d != getBackground()) { 126 super.setBackgroundDrawable(d); 127 } 128 } 129 130 /** 131 * Set the "trash" drop target background. 132 */ setDropTrashBackground()133 public void setDropTrashBackground() { 134 setBackgroundColor(sDropTrashBgColor); 135 } 136 137 /** 138 * Set the "active" drop target background. (Used for the items that the user is hovering over) 139 */ setDropActiveBackground()140 public void setDropActiveBackground() { 141 setBackgroundDrawable(getDropActiveBgDrawable()); 142 } 143 setDropTargetBackground(boolean dragInProgress, long itemMailbox)144 public void setDropTargetBackground(boolean dragInProgress, long itemMailbox) { 145 int labelNameColor = sTextPrimaryColor; 146 int labelCountColor = sTextSecondaryColor; 147 148 boolean isBackgroundSet = false; 149 if (dragInProgress) { 150 if (isDropTarget(itemMailbox)) { 151 setBackgroundColor(sDropAvailableBgColor); 152 isBackgroundSet = true; 153 } else { 154 labelNameColor = sDropUnavailableFgColor; 155 labelCountColor = sDropUnavailableFgColor; 156 } 157 } 158 if (!isBackgroundSet) { 159 // Drag not in progress, or it's not a drop target. 160 setBackgroundDrawable(mBackground); 161 } 162 mLabelName.setTextColor(labelNameColor); 163 mLabelCount.setTextColor(labelCountColor); 164 } 165 } 166