copy misc/colors.js to lib_src

Author: aminya

lib_src/misc/colors.js

@@ -0,0 +1,44 @@
+'use babel'
+
+export function getColors(selectors) {
+  let grammar = atom.grammars.grammarForScopeName("source.julia")
+
+  let styled = {}
+  let color = {}
+  let div = document.createElement('div')
+  div.classList.add('editor', 'editor-colors', 'julia-syntax-color-selector')
+
+  for (let style in selectors) {
+    let child = document.createElement('span')
+    child.innerText = 'foo'
+    child.classList.add(...selectors[style])
+    div.appendChild(child)
+    styled[style] = child
+  }
+
+  document.body.appendChild(div)
+  // wait till rendered?
+  for (let style in selectors) {
+    try {
+      color[style] = rgb2hex(window.getComputedStyle(styled[style])['color'])
+    } catch (e) {
+      console.error(e)
+    }
+  }
+  color['background'] = rgb2hex(window.getComputedStyle(div)['backgroundColor'])
+  document.body.removeChild(div)
+
+  return color
+}
+
+function rgb2hex(rgb) {
+  if (rgb.search("rgb") == -1) {
+    return rgb
+  } else {
+    rgb = rgb.match(/^rgba?\((\d+),\s*(\d+),\s*(\d+)(?:,\s*(\d+))?\)$/)
+    function hex(x) {
+      return ("0" + parseInt(x).toString(16)).slice(-2);
+    }
+    return hex(rgb[1]) + hex(rgb[2]) + hex(rgb[3]);
+  }
+}