git ssb

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const nest = require('depnest')
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exports.gives = nest('main.sync.catchKeyboardShortcut')
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exports.create = function (api) {
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  return nest('main.sync.catchKeyboardShortcut', catchKeyboardShortcut)
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  function catchKeyboardShortcut (root, opts) {
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    var gPressed = false
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    root.addEventListener('keydown', (ev) => {
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      isTextFieldEvent(ev)
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        ? textFieldShortcuts(ev)
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        : genericShortcuts(ev, opts)
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    })
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  }
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}
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// TODO build better apis for navigation, search, and publishing
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function isTextFieldEvent (ev) {
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  const tag = ev.target.nodeName
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  return (tag === 'INPUT' || tag === 'TEXTAREA')
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}
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function textFieldShortcuts (ev) {
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  if (ev.keyCode === 13 && ev.ctrlKey) {
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    ev.target.publish()  // expects the textField to have a publish method
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  }
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}
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function genericShortcuts (ev, { tabs, search }) {
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  // Messages
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  if (ev.keyCode === 71) { // gg = scroll to top
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    if (!gPressed) {
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      gPressed = true
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      return
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    }
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    tabs.get(tabs.selected[0]).firstChild.scroll('first')
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  }
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  gPressed = false
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  switch (ev.keyCode) {
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    // Messages (cont'd)
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    case 74: // j = older
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      return tabs.get(tabs.selected[0]).firstChild.scroll(1)
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    case 75: // k = newer
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      return tabs.get(tabs.selected[0]).firstChild.scroll(-1)
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    case 13: // enter = open
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      return goToMessage(ev)
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    case 79: // o = open
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      return goToMessage(ev)
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    case 192: // ` = toggle raw message view
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      return toggleRawMessage(ev)
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    // Tabs
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    case 72: // h = left
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      return tabs.selectRelative(-1)
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    case 76: // l = right
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      return tabs.selectRelative(1)
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    case 88: // x = close
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      if (tabs.selected) {
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        var sel = tabs.selected
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        var i = sel.reduce(function (a, b) { return Math.min(a, b) })
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        tabs.remove(sel)
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        tabs.select(Math.max(i - 1, 0))
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      }
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      return
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    // Search
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    case 191: // / = routes search
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      if (ev.shiftKey) search.activate('?', ev)
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      else search.activate('/', ev)
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      return
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    case 50: // @ = mention search
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      if (ev.shiftKey) search.activate('@', ev)
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      return
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    case 51: // # = channel search
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      if (ev.shiftKey) search.activate('#', ev)
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      return
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    case 53: // % = message search
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      if (ev.shiftKey) search.activate('%', ev)
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      return
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  }
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}
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function goToMessage (ev) {
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  const msg = ev.target
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  if (!msg.classList.contains('Message')) return
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  // this uses a crudely exported nav api
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  const search = document.querySelector('input[type=search]')
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  search.go(msg.dataset.root)
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}
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function toggleRawMessage (ev) {
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  const msg = ev.target
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  if (!msg.classList.contains('Message')) return
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  // this uses a crudely exported nav api
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  msg.querySelector('.meta .toggle-raw-msg').click()
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}
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