src/ElmSharp/ElmSharp/Index.cs

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   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 using System;
  18 using System.Collections.Generic;
  19
  20 namespace ElmSharp
  21 {
  22     public class Index : Layout
  23     {
  24         HashSet<IndexItem> _children = new HashSet<IndexItem>();
  25         SmartEvent _delayedChanged;
  26
  27         public Index(EvasObject parent) : base(parent)
  28         {
  29             _delayedChanged = new SmartEvent(this, this.RealHandle, "delay,changed");
  30             _delayedChanged.On += _delayedChanged_On;
  31         }
  32
  33         public event EventHandler Changed;
  34
  35         public bool AutoHide
  36         {
  37             get
  38             {
  39                 return !Interop.Elementary.elm_index_autohide_disabled_get(RealHandle);
  40             }
  41             set
  42             {
  43                 Interop.Elementary.elm_index_autohide_disabled_set(RealHandle, !value);
  44             }
  45         }
  46
  47         public bool IsHorizontal
  48         {
  49             get
  50             {
  51                 return Interop.Elementary.elm_index_horizontal_get(RealHandle);
  52             }
  53             set
  54             {
  55                 Interop.Elementary.elm_index_horizontal_set(RealHandle, value);
  56             }
  57         }
  58
  59         public bool IndicatorVisible
  60         {
  61             get
  62             {
  63                 return !Interop.Elementary.elm_index_indicator_disabled_get(RealHandle);
  64             }
  65             set
  66             {
  67                 Interop.Elementary.elm_index_indicator_disabled_set(RealHandle, !value);
  68             }
  69         }
  70
  71         public bool OmitEnabled
  72         {
  73             get
  74             {
  75                 return Interop.Elementary.elm_index_omit_enabled_get(RealHandle);
  76             }
  77             set
  78             {
  79                 Interop.Elementary.elm_index_omit_enabled_set(RealHandle, value);
  80             }
  81         }
  82
  83         public IndexItem SelectedItem
  84         {
  85             get
  86             {
  87                 IntPtr handle = Interop.Elementary.elm_index_selected_item_get(RealHandle, 0);
  88                 return ItemObject.GetItemByHandle(handle) as IndexItem;
  89             }
  90         }
  91
  92         public IndexItem Append(string label)
  93         {
  94             IndexItem item = new IndexItem(label);
  95             item.Handle = Interop.Elementary.elm_index_item_append(RealHandle, label, null, (IntPtr)item.Id);
  96             return item;
  97         }
  98
  99         public IndexItem Prepend(string label)
 100         {
 101             IndexItem item = new IndexItem(label);
 102             item.Handle = Interop.Elementary.elm_index_item_prepend(RealHandle, label, null, (IntPtr)item.Id);
 103             return item;
 104         }
 105
 106         public IndexItem InsertBefore(string label, IndexItem before)
 107         {
 108             IndexItem item = new IndexItem(label);
 109             item.Handle = Interop.Elementary.elm_index_item_insert_before(RealHandle, before, label, null, (IntPtr)item.Id);
 110             return item;
 111         }
 112
 113         public void Update(int level)
 114         {
 115             Interop.Elementary.elm_index_level_go(RealHandle, level);
 116         }
 117
 118         protected override IntPtr CreateHandle(EvasObject parent)
 119         {
 120             IntPtr handle = Interop.Elementary.elm_layout_add(parent.Handle);
 121             Interop.Elementary.elm_layout_theme_set(handle, "layout", "elm_widget", "default");
 122
 123             RealHandle = Interop.Elementary.elm_index_add(handle);
 124             Interop.Elementary.elm_object_part_content_set(handle, "elm.swallow.content", RealHandle);
 125
 126             return handle;
 127         }
 128
 129         void _delayedChanged_On(object sender, EventArgs e)
 130         {
 131             SelectedItem?.SendSelected();
 132             Changed?.Invoke(this, e);
 133         }
 134
 135         void AddInternal(IndexItem item)
 136         {
 137             _children.Add(item);
 138             item.Deleted += Item_Deleted;
 139         }
 140
 141         void Item_Deleted(object sender, EventArgs e)
 142         {
 143             _children.Remove((IndexItem)sender);
 144         }
 145     }
 146 }