![]() contenteditable="false" Indicates that the element is not editable. You’ve likely seen this sort of thing in blog-based authoring tools like Symphony or sites like Flickr where you can begin editing page content simply by clicking in a given area.Īs mentioned above, contenteditable has three possible states:Ĭontenteditable="" or contenteditable="true" Indicates that the element is editable. The contenteditable attribute was mainly intended for providing an in-browser rich-text or WYSIWYG experience. In addition, there is a third state, the inherit state, which is the missing value default (and the invalid value default). The false keyword maps to the false state. The empty string and the true keyword map to the true state. The contenteditable attribute is an enumerated attribute whose keywords are the empty string, true, and false. In this article, I’ll tell you what this attribute is for, how it works, and how we can take things further. ![]() Now with the contenteditable attribute, things have got a whole lot easier. As lectionStart returns the caret position inside an input element, you may want to have an equivalent method for a contenteditable element.For some time now, we’ve been using various technologies to edit and store text within a web browser. Get The Caret Index Positionīesides the context menu example, there might be use cases where you do not need the X and Y coordinates but rather the caret’s index position. Then, we can return x and y that define the top left corner of our caret. ![]() It returns the coordinates of an element relative to its viewport. This method works similar to getBoundingClientRect. Finally, we can call getClientRects to get all the positioning data we need for our context menu (lines 10–13). In case we have a range across multiple characters in our text editor, we collapse the range to the start (line 9). Each Range represents a pair of boundary points - the start and end of the selection. A Range is the basic concept of selections. If this is true, we clone the current range. We use this information to check if there is a cursor set (line 7). The selection contains information about the cursor: If it is placed, where it is placed, and how much content is selected on the screen. To get the caret coordinates, we, first of all, get the selection from the window object. If we have those, we can display a div that has a position: absolute attribute and a proper top and left positioning. Therefore, we need to know the X and Y coordinates of it. In the mentioned example, I wanted to show a context menu right above the caret. The Solution(s) Get The Caret Coordinates That makes it even harder.įortunately, we can solve both issues easily. Besides, editable elements can have nested HTML elements inside (e.g. If you use an input or textarea element, it is relatively easy to get that information because you have a selectionStart and selectionEnd attribute available on the form element itself.īut for contenteditable elements you do not have these attributes. To do that, we need to know the exact position of the caret. To adjust the styling of the content, I wanted to display a context menu right above the cursor. Recently, I built a text-editor where users could edit HTML content inside a contenteditable element. In this article, we are going to create two methods for locating the caret: One to get the X/Y coordinates and another to get the index position within the content. But since I struggled a lot with this issue in my latest project, I decided to share my approach - hoping that it might help one or the other. Yes, I know… there are certainly more exciting topics to write about than dealing with cursors on a web page. ![]() You can find this working example at the end of this article.
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