CopyQ - Dialog for Pasting Snippets

CopyQ - Snippets.ini

[Command]
Command="
    copyq:
    var snippetsTabName = 'Snippets'
    
    function newVarRe(content) {
      return new RegExp('\\\\${' + content + '}', 'g')
    }
    
    function getText(item) {
      var textData = item['text/plain']
      return textData ? str(textData) : ''
    }
    
    function assignPlaceholder(snippet, placeholder, value) {
      return snippet.replace(newVarRe(placeholder), value)
    }
    
    function fuzzyIndexOf(snippetNames, snippetName) {
        var re = new RegExp(snippetName, 'i')
        for (var i in snippetNames) {
          if (snippetNames[i].match(re))
            return i;
        }
        return -1
    }
    
    function loadSnippets(snippetNames, snippets)
    {
      var tabs = tab()
      for (var i in tabs) {
        var tabName = tabs[i];
        if (tabName != snippetsTabName && tabName.indexOf(snippetsTabName + '/') != 0)
          continue;
    
        tab(tabName)
        var prefix = tabName.substring(snippetsTabName.length + 1)
        for (var j = 0; j < size(); ++j) {
          var snippet = getitem(j)
          var snippetName = str(snippet['application/x-copyq-item-notes']) || getText(snippet)
          if (prefix.length != 0)
            snippetName = prefix + ': ' + snippetName
          snippetNames.push(snippetName)
          snippets.push(snippet)
        }
      }
    }
    
    function askForSnippetName(snippetNames) {
      return str(dialog(
        '.title', 'Snippets',
        'Snippet', [snippetNames[0]].concat(snippetNames)
      ) || abort())
    }
    
    function askForSnippet(snippetNames, snippets) {
      var snippetName = askForSnippetName(snippetNames)
      var i = snippetNames.indexOf(snippetName)
      if (i == -1) {
        i = fuzzyIndexOf(snippetNames, snippetName)
        if (i == -1) {
          popup(
            'Snippet Not Found',
            'No matching snippet found for \"' + snippetName + '\"!'
          )
          abort()
        }
      }
    
      return snippets[i]
    }
    
    function getPlaceholders(snippet) {
      var placeholders = []
      var m
      var reVar = newVarRe('(.*?)')
      while ((m = reVar.exec(snippet)) !== null) {
        if (placeholders.indexOf(m[1]) === -1)
          placeholders.push(m[1])
      }
    
      return placeholders
    }
    
    function askToAssignPlaceholders(snippet) {
      var placeholders = getPlaceholders(snippet)
    
      if (placeholders.length > 0) {
        var dialogVars = [
          '.title', 'Snippet Values for \"' + snippet + '\"']
    
        for (var i in placeholders) {
          dialogVars.push(placeholders[i])
          dialogVars.push(\"\")
        }
    
        var values = dialog.apply(this, dialogVars) || abort()
    
        if (placeholders.length > 1) {
          for (var i in placeholders)
            snippet = assignPlaceholder(snippet, placeholders[i], values[placeholders[i]])
        } else {
          snippet = assignPlaceholder(snippet, placeholders[0], values)
        }
      }
    
      return snippet
    }
    
    function pasteSnippet(mime, content) {
      copy(mime, content)
      copySelection(mime, content)
      paste()
    }
    
    var snippetNames = []
    var snippets = []
    loadSnippets(snippetNames, snippets)
    
    var snippet = askForSnippet(snippetNames, snippets)
    
    var textSnippet = getText(snippet)
    if (textSnippet)
      pasteSnippet('text/plain', askToAssignPlaceholders(textSnippet))
    else
      pasteSnippet('application/x-copyq-item', pack(snippet))"
GlobalShortcut=Meta+Alt+Q
Icon=\xf1fb
Name=Snippets

I just got a private message from someone having issues so this is my response:

I can't remember what I did but:

• there must be a tab (Snippets),
• the tab needs to contain at least one item
• all the items should have notes attached (Shift+F2).

I have attached my slightly modified version with some error handling I added when getting this to work:

///////////////////////////////////////////////////////////////////////////////////////
// https://gist.github.com/hluk/af37cd2ca650c92ed0fa
//         The following code came from here, Dennis Bareis
//         added enough error handling code to work out the
//         problems he had getting it going...
// https://www.youtube.com/watch?v=xVUzM7TjV_g&t=158s
///////////////////////////////////////////////////////////////////////////////////////

var snippetsTabName = 'Snippets'

function newVarRe(content) {
  return new RegExp('\\${' + content + '}', 'g')
}

function getText(item) {
  var textData = item['text/plain']
  return textData ? str(textData) : ''
}

function assignPlaceholder(snippet, placeholder, value) {
  return snippet.replace(newVarRe(placeholder), value)
}

function fuzzyIndexOf(snippetNames, snippetName) {
    var re = new RegExp(snippetName, 'i')
    for (var i in snippetNames) {
      if (snippetNames[i].match(re))
        return i;
    }
    return -1
}

function loadSnippets(snippetNames, snippets)
{
  var tabs = tab()
  for (var i in tabs) {
    var tabName = tabs[i];
    if (tabName != snippetsTabName && tabName.indexOf(snippetsTabName + '/') != 0)
      continue;

    tab(tabName)
    var prefix = tabName.substring(snippetsTabName.length + 1)
    for (var j = 0; j < size(); ++j) {
      var snippet = getitem(j)
      var snippetName = str(snippet['application/x-copyq-item-notes']) || getText(snippet)
      if (snippetName == "undefined")
         snippetName = "[NOTE MISSING ON SNIPPET]"
      if (prefix.length != 0)
        snippetName = prefix + ': ' + snippetName
      snippetNames.push(snippetName)
      snippets.push(snippet)
    }
  }
}

function askForSnippetName(snippetNames) {
  return str(dialog(
    '.title', 'Snippets',
    'Snippet', [snippetNames[0]].concat(snippetNames)
  ) || abort())
}

function askForSnippet(snippetNames, snippets) {
  var snippetName = askForSnippetName(snippetNames)
  var i = snippetNames.indexOf(snippetName)
  if (i == -1) {
    i = fuzzyIndexOf(snippetNames, snippetName)
    if (i == -1) {
      popup(
        'Snippet Not Found',
        'No matching snippet found for "' + snippetName + '"!'
      )
      abort()
    }
  }

  return snippets[i]
}

function getPlaceholders(snippet) {
  var placeholders = []
  var m
  var reVar = newVarRe('(.*?)')
  while ((m = reVar.exec(snippet)) !== null) {
    if (placeholders.indexOf(m[1]) === -1)
      placeholders.push(m[1])
  }

  return placeholders
}

function askToAssignPlaceholders(snippet) {
  var placeholders = getPlaceholders(snippet)

  if (placeholders.length > 0) {
    var dialogVars = [
      '.title', 'Snippet Values for "' + snippet + '"']

    for (var i in placeholders) {
      dialogVars.push(placeholders[i])
      dialogVars.push("")
    }

    var values = dialog.apply(this, dialogVars) || abort()

    if (placeholders.length > 1) {
      for (var i in placeholders)
        snippet = assignPlaceholder(snippet, placeholders[i], values[placeholders[i]])
    } else {
      snippet = assignPlaceholder(snippet, placeholders[0], values)
    }
  }

  return snippet
}

function pasteSnippet(mime, content) {
  copy(mime, content)
  copySelection(mime, content)
  paste()
}

var snippetNames = []
var snippets = []
loadSnippets(snippetNames, snippets)


//--- DB$: Exit if no Snippets exist ----------------------------------------
if  (snippets.length == 0)
{
    var Msg = 'You haven\'t defined any snippets in the "Snippets" tab yet!'
    serverLog(Msg)
    popup(Msg, "", 5000)
    abort()
}



var snippet = askForSnippet(snippetNames, snippets)

var textSnippet = getText(snippet)
if (textSnippet)
  pasteSnippet('text/plain', askToAssignPlaceholders(textSnippet))
else
  pasteSnippet('application/x-copyq-item', pack(snippet))

Is it possible to have also have computed fields / that dynamically generate based on what was input for another field?