Workbench/src/Previewer/External.js at 00333dfab8a5338eeaeef4f47a6756a5257c474a · workbenchdev/Workbench · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
import Adw from "gi://Adw";
import dbus_previewer from "./DBusPreviewer.js";
import { decode } from "../util.js";

export default function External({ output, builder, onWindowChange }) {
  const stack = builder.get_object("stack_preview");
  let dbus_proxy;

  dbus_previewer.onWindowOpen = ([open]) => {
    onWindowChange(open);
  };

  dbus_previewer.onCssParserError = (error) => {
    builder
      .get_object("code_view_css")
      .handleDiagnostics([getCssDiagnostic(error)]);
  };

  async function start(language) {
    if (language === "rust") {
      language = "vala"; // Rust uses the Vala previewer.
    }
    try {
      dbus_proxy = await dbus_previewer.getProxy(language);
    } catch (err) {
      console.error(err);
    }
  }

  async function open() {
    updateColorScheme();
    stack.set_visible_child_name("close_window");
    try {
      await dbus_proxy.OpenWindowAsync(
        output.get_allocated_width(),
        output.get_allocated_height(),
      );
    } catch (err) {
      console.debug(err);
    }
  }

  async function close() {
    try {
      await dbus_proxy.CloseWindowAsync();
    } catch (err) {
      console.debug(err);
      return;
    }
    stack.set_visible_child_name("open_window");
  }

  function stop() {
    close()
      .then(() => {
        return dbus_previewer.stop();
      })
      .catch(console.error);
  }

  async function updateXML({
    xml,
    target_id,
    original_id,
    template_gtype_name,
    template,
  }) {
    try {
      await dbus_proxy.UpdateUiAsync(
        xml,
        target_id,
        original_id || "",
        template_gtype_name || "",
        template ? decode(template) : "",
      );
    } catch (err) {
      console.debug(err);
    }
  }

  async function openInspector() {
    try {
      await dbus_proxy.EnableInspectorAsync(true);
    } catch (err) {
      console.debug(err);
    }
  }

  async function closeInspector() {
    try {
      await dbus_proxy.EnableInspectorAsync(false);
    } catch (err) {
      console.debug(err);
    }
  }

  const style_manager = Adw.StyleManager.get_default();
  function updateColorScheme() {
    try {
      dbus_proxy.ColorScheme = style_manager.color_scheme;
    } catch (err) {
      console.debug(err);
    }
  }
  style_manager.connect("notify::color-scheme", updateColorScheme);

  return {
    start,
    stop,
    open,
    close,
    openInspector,
    closeInspector,
    updateXML,
    async updateCSS(css) {
      try {
        await dbus_proxy.UpdateCssAsync(css);
      } catch (err) {
        console.debug(err);
      }
    },
    async screenshot({ path }) {
      return dbus_proxy.ScreenshotAsync(path);
    },
  };
}

// Converts a CssParserError to an LSP diagnostic object
function getCssDiagnostic([
  message,
  start_line,
  start_char,
  end_line,
  end_char,
]) {
  return {
    message,
    range: {
      start: {
        line: start_line,
        character: start_char,
      },
      end: {
        line: end_line,
        character: end_char,
      },
    },
    severity: 1,
  };
}