Decaffeinate

lib/cursor-position-view.js

@@ -0,0 +1,74 @@
+const {Disposable} = require('atom')
+
+module.exports =
+class CursorPositionView {
+  constructor () {
+    this.viewUpdatePending = false
+
+    this.element = document.createElement('status-bar-cursor')
+    this.element.classList.add('cursor-position', 'inline-block')
+    this.goToLineLink = document.createElement('a')
+    this.goToLineLink.classList.add('inline-block')
+    this.element.appendChild(this.goToLineLink)
+
+    this.formatString = atom.config.get('status-bar.cursorPositionFormat') || '%L:%C'
+
+    this.activeItemSubscription = atom.workspace.onDidChangeActiveTextEditor(activeEditor => this.subscribeToActiveTextEditor())
+
+    this.subscribeToConfig()
+    this.subscribeToActiveTextEditor()
+
+    this.tooltip = atom.tooltips.add(this.element, {title: () => `Line ${this.row}, Column ${this.column}`})
+
+    this.handleClick()
+  }
+
+  destroy () {
+    this.activeItemSubscription.dispose()
+    if (this.cursorSubscription) this.cursorSubscription.dispose()
+    this.tooltip.dispose()
+    if (this.configSubscription) this.configSubscription.dispose()
+    this.clickSubscription.dispose()
+    if (this.updateSubscription) this.updateSubscription.dispose()
+  }
+
+  subscribeToActiveTextEditor () {
+    if (this.cursorSubscription) this.cursorSubscription.dispose()
+    const selectionsMarkerLayer = atom.workspace.getActiveTextEditor() && atom.workspace.getActiveTextEditor().selectionsMarkerLayer
+    this.cursorSubscription = selectionsMarkerLayer && selectionsMarkerLayer.onDidUpdate(this.scheduleUpdate.bind(this))
+    this.scheduleUpdate()
+  }
+
+  subscribeToConfig () {
+    if (this.configSubscription) this.configSubscription.dispose()
+    this.configSubscription = atom.config.observe('status-bar.cursorPositionFormat', value => {
+      this.formatString = value || '%L:%C'
+      this.scheduleUpdate()
+    })
+  }
+
+  handleClick () {
+    const clickHandler = () => atom.commands.dispatch(atom.views.getView(atom.workspace.getActiveTextEditor()), 'go-to-line:toggle')
+    this.element.addEventListener('click', clickHandler)
+    this.clickSubscription = new Disposable(() => this.element.removeEventListener('click', clickHandler))
+  }
+
+  scheduleUpdate () {
+    if (this.viewUpdatePending) return
+
+    this.viewUpdatePending = true
+    this.updateSubscription = atom.views.updateDocument(() => {
+      this.viewUpdatePending = false
+      const position = atom.workspace.getActiveTextEditor() && atom.workspace.getActiveTextEditor().getCursorBufferPosition()
+      if (position) {
+        this.row = position.row + 1
+        this.column = position.column + 1
+        this.goToLineLink.textContent = this.formatString.replace('%L', this.row).replace('%C', this.column)
+        this.element.classList.remove('hide')
+      } else {
+        this.goToLineLink.textContent = ''
+        this.element.classList.add('hide')
+      }
+    })
+  }
+}