23 lines
765 B
Plaintext
23 lines
765 B
Plaintext
class FileReader {
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output: TextBlock
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problem: TextBlock
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status: TextBlock
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task: Object
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function apply(self: FileReader): Unit {
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self.output.text = self.task.result()
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}
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function read(self: FileReader, path: String): Unit {
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self.task = ui.readText(self, "file", path, self.apply)
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self.output.text = ""
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self.status.bind("text", self.task.status)
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self.problem.bind("text", self.task.error)
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}
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}
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output = TextBlock("尚未读取文件")
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problem = TextBlock("")
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status = TextBlock("")
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reader = FileReader(output, problem, status, ui.state(0))
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page = Page()
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page.title = "异步文件"
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page.render(Column(24,16,TextBlock("在 REPL 调用 reader.read(绝对路径字符串)",2),status,output,problem))
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