Mercurial > cgi-bin > hgweb.cgi > ClipMan

annotate src/name/blackcap/clipman/Main.kt @ 2:6fb94eae32fa

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Maybe this will auto-scroll reliably?
author David Barts <n5jrn@me.com>
date Sat, 18 Jan 2020 10:58:45 -0800
parents be282c48010a
children 70caa73e32f7
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1 /*
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2 * The entry point and most of the view logic is here.
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3 */
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4 package name.blackcap.clipman
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5
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6 import java.awt.BorderLayout
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7 import java.awt.Color
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8 import java.awt.Container
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9 import java.awt.Dimension
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10 import java.awt.Font
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11 import java.awt.Toolkit;
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12 import java.awt.datatransfer.*
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13 import java.awt.event.WindowEvent
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14 import java.awt.event.WindowListener
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15 import java.util.Date
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16 import java.util.logging.Level
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17 import java.util.logging.Logger
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18 import javax.swing.*
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19 import javax.swing.border.CompoundBorder
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20 import javax.swing.border.EmptyBorder
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21 import javax.swing.border.LineBorder
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22 import javax.swing.text.JTextComponent
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23 import kotlin.concurrent.thread
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24 import org.jsoup.Jsoup
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25 import org.jsoup.nodes.*
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26
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27
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28 /* kills the updating thread (and does a system exit) when needed */
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29 class KillIt(val thr: Thread) : WindowListener {
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30 // events we don't care about
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31 override fun windowActivated(e: WindowEvent) {}
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32 override fun windowClosed(e: WindowEvent) {}
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33 override fun windowDeactivated(e: WindowEvent) {}
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34 override fun windowDeiconified(e: WindowEvent) {}
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35 override fun windowIconified(e: WindowEvent) {}
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36 override fun windowOpened(e: WindowEvent) {}
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37
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38 // and the one we do
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39 override fun windowClosing(e: WindowEvent) {
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40 thr.run { interrupt(); join() }
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41 System.exit(0)
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42 }
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43 }
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44
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45 /* the updating thread */
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46 class UpdateIt(val queue: PasteboardQueue, val interval: Int): Thread() {
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47 @Volatile var enabled = true
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48 private val stdBorder =
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49 CompoundBorder(EmptyBorder(5, 10, 5, 10), LineBorder(Color.GRAY, 1))
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50
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51 override fun run() {
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52 var oldContents = ""
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53 var newContents = ""
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54 while (true) {
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55 if (enabled) {
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56 var contents = PasteboardItem.read()
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57 if (contents == null) {
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58 LOGGER.log(Level.WARNING, "unable to read clipboard")
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59 continue
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60 }
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61 newContents = when (contents) {
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62 is PasteboardItem.Plain -> contents.plain
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63 is PasteboardItem.HTML -> contents.plain
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64 }
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65 if (oldContents != newContents) {
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66 var widget: JComponent = when(contents) {
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67 is PasteboardItem.Plain -> JTextPane().apply {
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68 contentType = "text/plain"
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69 toolTipText = "Plain text"
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70 text = contents.plain
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71 font = Font(Font.MONOSPACED, Font.PLAIN, 14)
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72 border = stdBorder
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73 autoSize(600)
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74 setEditable(false)
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75 }
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76 is PasteboardItem.HTML -> JTextPane().apply {
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77 contentType = "text/html"
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78 toolTipText = "Styled text"
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79 text = scrub(contents.html)
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80 border = stdBorder
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81 autoSize(600)
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82 setEditable(false)
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83 }
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84 }
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85 queue.add(QueueItem(widget, contents))
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86 oldContents = newContents
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87 }
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88 }
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89 if (Thread.interrupted()) {
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90 return
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91 }
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92 try {
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93 Thread.sleep(interval - System.currentTimeMillis() % interval)
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94 } catch (e: InterruptedException) {
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95 return
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96 }
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97 }
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98 }
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99
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100 private fun scrub(html: String): String {
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101 return Jsoup.parse(html).run {
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102 select(":root>head>meta").remove()
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103 outputSettings()
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104 .charset(CHARSET_NAME)
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105 .syntax(Document.OutputSettings.Syntax.xml)
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106 outerHtml()
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107 }
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108 }
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109 }
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110
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111 fun main(args: Array<String>) {
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112 LOGGER.log(Level.INFO, "beginning execution")
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113 val con = Container().apply {
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114 layout = BoxLayout(this, BoxLayout.Y_AXIS)
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115 }
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116 var frame: JFrame? = null
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117 inSwingThread {
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118 frame = JFrame("ClipMan").apply {
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119 preferredSize = Dimension(640, 480)
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120 contentPane.add(
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121 JScrollPane(con).apply {
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122 verticalScrollBarPolicy = ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED
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123 horizontalScrollBarPolicy = ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER
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124 preferredSize = Dimension(640, 480)
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125 }, BorderLayout.CENTER)
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126 pack()
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127 setVisible(true)
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128 }
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129 }
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130 val queue = PasteboardQueue(con, 10)
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131 val updater = UpdateIt(queue, 1000).apply { start() }
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132 inSwingThread { frame?.addWindowListener(KillIt(updater)) }
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133 LOGGER.log(Level.INFO, "execution complete")
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134 }
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135
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136 fun inSwingThread(block: () -> Unit) {
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137 SwingUtilities.invokeLater(Runnable(block))
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138 }
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139
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140 fun JTextComponent.autoSize(width: Int): Unit {
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141 val SLOP = 10
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142 val dim = Dimension(width, width)
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143 preferredSize = dim
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144 size = dim
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145 val r = modelToView(document.length)
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146 preferredSize = Dimension(width, r.y + r.height + SLOP)
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147 }