Google Docs API in Apps Script

Question

I am trying to use Apps Script with Google Docs API to have a setting within a personally created submenu to change text color, depending on which option is selected in the sub menu. Can someone give me a general idea of how I can get the current color of a specific paragraph and set it to a different color.

Answer 1

To get the current foreground color of a paragraph use Method:Paragraph.getAttribute and Method:Paragraph.setAttribute to set the foreground color.

Example:

Code:

function myFunction() {
  var doc = DocumentApp.getActiveDocument();
  var body = doc.getBody();
  body.getParagraphs().forEach(par => {
    var style = {};
    if(par.getAttributes().FOREGROUND_COLOR == '#ff0000'){
      style[DocumentApp.Attribute.FOREGROUND_COLOR] = '#0000ff';
    }else if(par.getAttributes().FOREGROUND_COLOR == '#ff9900'){
      style[DocumentApp.Attribute.FOREGROUND_COLOR] = '#008000';
    }
    par.setAttributes(style);
  })
}

Output:

Here are the list of Attributes you can use.