awebview.gui.contextmenu source code

1 module awebview.gui.contextmenu;
2 
3 import awebview.gui.html;
4 import awebview.gui.activity;
5 
6 import awebview.gui.widgets.button;
7 
8 import std.array,
9        std.format;
10 
11 
12 
13 class ContextMenuListPage : HTMLPage
14 {
15     this(E...)(auto ref E args)
16     {
17         super("_contextmenulist_");
18 
19         foreach(ref e; args){
20           static if(is(typeof(e) : HTMLElement))
21           {
22             _args ~= Alg(cast(HTMLElement)e);
23             _elements[e.id] = e;
24           }
25           else
26             _args ~= Alg(e);
27         }
28 
29         _elements["_contextmenulist_"] = new IDOnlyElement("_contextmenulist_");
30     }
31 
32 
33     override
34     inout(HTMLElement[string]) elements() inout @property
35     {
36         return _elements;
37     }
38 
39 
40     uint offsetTop(uint idx)
41     {
42         auto jv = this.activity.evalJS(mixin(Lstr!q{
43           (function(){
44             var es = document.querySelectorAll("tr");
45             var elem = es[%[idx%]];
46             var y = elem.offsetTop;
47 
48             while(elem = elem.offsetParent)
49                 y += elem.offsetTop;
50 
51             return y;
52           }())
53         }));
54 
55         assert(jv.has!uint);
56         return jv.get!uint;
57     }
58 
59 
60     override
61     @property
62     string html()
63     {
64         bool bBorderedTop;
65         auto app = appender!string();
66 
67         app.put(`<html><head><title>ContextMenuList</title></head><style>tr:hover { background-color: #007bff; color: #000000; }</style>`);
68         app.put(`<body style="margin:0px; padding:0px">`);
69         app.put(`<table id="_contextmenulist_" style="border-collapse: collapse; border: inset 1px black;">`);
70 
71         foreach(ref e; _args)
72         {
73             if(e.peek!char)
74             {
75                 bBorderedTop = true;
76                 continue;
77             }
78             else
79             {
80                 if(bBorderedTop)
81                     app.put(`<tr><td style="border-top: solid 1px;">`);
82                 else
83                     app.put(`<tr><td>`);
84 
85                 if(auto p = e.peek!string)
86                 {
87                     app.put(*p);
88                 }
89                 else if(auto p = e.peek!HTMLElement)
90                 {
91                     app.put(p.html);
92                 }
93 
94                 app.put(`</td></tr>`);
95                 bBorderedTop = false;
96             }
97         }
98 
99         app.put(`</table></body></html>`);
100         return app.data;
101     }
102 
103 
104   private:
105     import std.variant : Algebraic;
106 
107     alias Alg = Algebraic!(char, string, HTMLElement);
108 
109     Alg[] _args;
110     HTMLElement[string] _elements;
111 }
112 
113 
114 /+
115 struct ContextMenuItem
116 {
117   static:
118     class DoOnClick : GenericButton!(`<div onclick="%[id%].onClick"></div>`)
119     {
120         this(string id, string text, void delegate() dlg)
121         {
122             super("_contextmenulist_" ~ id, true);
123             this.staticProps["innerHTML"] = text;
124         }
125     }
126 
127 
128     class ShowOnMouseOver : HTMLElement
129     {
130         this(HTMLPage page)
131         {
132 
133         }
134     }
135 }
136 +/