Mercurial > cgi-bin > hgweb.cgi > ClipMan

annotate src/name/blackcap/clipman/Menus.kt @ 47:19d9da731c43

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Recoded; cleaned up root namespace, removed race conditions.
author David Barts <n5jrn@me.com>
date Sun, 12 Apr 2020 14:31:06 -0700
parents 33fbe3a78d84
children bb80148e2cb3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Menu-related stuff, pertaining to both the menu bar and popup menus.
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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.Container
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7 import java.awt.Toolkit
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8 import java.awt.event.ActionEvent
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9 import java.awt.event.ActionListener
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10 import java.awt.event.KeyEvent
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11 import javax.swing.*
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12 import kotlin.collections.HashSet
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14 /**
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15 * Listen to actionEvents from both menu bar and popup menu selections.
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16 */
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17 class MenuItemListener: ActionListener {
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18 override fun actionPerformed(e: ActionEvent) {
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19 when (e.actionCommand) {
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20 "File.Quit" -> System.exit(0)
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21 "File.Preferences" -> Application.settingsDialog.setVisible(true)
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22 "Edit.Clone" -> onlyIfSelected { PasteboardItem.write(it.contents) }
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23 "Edit.Coerce" -> onlyIfSelected { Application.coerceDialog.setVisible(true) }
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24 "Edit.Find" -> Application.searchDialog.setVisible(true)
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25 "Edit.FindAgain" -> Application.searchDialog.find()
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26 "Help.About" -> showAboutDialog()
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27 else -> throw RuntimeException("unexpected actionCommand!")
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28 }
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29 }
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31 private fun onlyIfSelected(block: (QueueItem) -> Unit) {
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32 val selected = Application.queue.getSelected()
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33 if (selected == null) {
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34 JOptionPane.showMessageDialog(Application.frame,
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35 "No item selected.",
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36 "Error",
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37 JOptionPane.ERROR_MESSAGE)
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38 } else {
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39 block(selected)
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40 }
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41 }
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42 }
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43
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44 /**
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45 * Track menu items that require something to be selected in order
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46 * to work, and allow them to be enabled and disabled en masse.
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47 */
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48 class SelectionRequired {
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49 private val controls = HashSet<JMenuItem>()
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50
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51 fun add(item: JMenuItem): JMenuItem {
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52 controls.add(item)
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53 return item
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54 }
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55
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56 private fun setEnabled(state: Boolean) {
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57 controls.forEach {
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58 it.setEnabled(state)
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59 }
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60 }
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61
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62 fun enable() = setEnabled(true)
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63
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64 fun disable() = setEnabled(false)
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65 }
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66
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67 /**
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68 * Our menu bar. What we display depends somewhat on the system type, as
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69 * the Mac gives us a gratuitous menu bar entry for handling some stuff.
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70 */
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71 class MyMenuBar: JMenuBar() {
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72 init {
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73 if (OS.type != OS.MAC) {
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74 add(JMenu("File").apply {
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75 add(JMenuItem("Quit").apply {
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76 actionCommand = "File.Quit"
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77 addActionListener(Application.menuItemListener)
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78 makeShortcut(KeyEvent.VK_Q)
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79 })
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80 add(JMenuItem("Preferences…").apply {
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81 actionCommand = "File.Preferences"
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82 addActionListener(Application.menuItemListener)
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83 makeShortcut(KeyEvent.VK_COMMA)
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84 })
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85 })
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86 }
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87 add(JMenu("Edit").apply {
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88 add(Application.anyRequired.add(JMenuItem("Clone").apply {
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89 setEnabled(false)
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90 actionCommand = "Edit.Clone"
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91 addActionListener(Application.menuItemListener)
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92 makeShortcut(KeyEvent.VK_C)
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93 }))
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94 add(Application.styledRequired.add(JMenuItem("Coerce…").apply {
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95 setEnabled(false)
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96 actionCommand = "Edit.Coerce"
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97 addActionListener(Application.menuItemListener)
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98 makeShortcut(KeyEvent.VK_K)
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99 }))
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100 add(JMenuItem("Find…").apply {
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101 actionCommand = "Edit.Find"
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102 addActionListener(Application.menuItemListener)
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103 makeShortcut(KeyEvent.VK_F)
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104 })
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105 add(JMenuItem("Find Again").apply {
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106 actionCommand = "Edit.FindAgain"
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107 addActionListener(Application.menuItemListener)
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108 makeShortcut(KeyEvent.VK_G)
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109 })
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110 })
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111 if (OS.type != OS.MAC) {
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112 add(JMenu("Help").apply {
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113 add(JMenuItem("About ClipMan…").apply {
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114 actionCommand = "Help.About"
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115 addActionListener(Application.menuItemListener)
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116 })
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117 })
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118 }
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119 }
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120
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121 fun getMenu(name: String): JMenu? {
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122 subElements.forEach {
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123 val jmenu = it.component as? JMenu
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124 if (jmenu?.text == name) {
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125 return jmenu
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126 }
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127 }
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128 return null
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129 }
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130 }
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131
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132 /**
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133 * The popup menu we display when the user requests so atop a clipboard
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134 * item.
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135 */
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136 class MyPopupMenu: JPopupMenu() {
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137 init {
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138 add(Application.anyRequired.add(JMenuItem("Clone").apply {
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139 actionCommand = "Edit.Clone"
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140 addActionListener(Application.menuItemListener)
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141 }))
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142 add(Application.styledRequired.add(JMenuItem("Coerce…").apply {
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143 actionCommand = "Edit.Coerce"
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144 addActionListener(Application.menuItemListener)
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145 }))
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146 }
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147 }
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148
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149 /**
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150 * Show an About dialog.
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151 */
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152 fun showAboutDialog() {
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153 JOptionPane.showMessageDialog(Application.frame,
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154 "ClipMan, a clipboard manager.\n"
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155 + "© MMXX, David W. Barts",
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156 "About ClipMan",
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157 JOptionPane.PLAIN_MESSAGE)
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158 }