evyros / angularjs-autogrow Goto Github PK
View Code? Open in Web Editor NEWAngularJS 1.x directive for auto-grow / auto-resize of textarea elements.
AngularJS 1.x directive for auto-grow / auto-resize of textarea elements.
I have created a new app with the angular fullstack generator, and tried to use this component, but does not work at all.
Hi,
I was having an issue with the directive (very good, by the way!) when put inside another directive and then having initial text on page load.
I fixed this using a $timeout in the autogrowFn call and changing the event listener.
I hope it may help other users :)
(function(){
'use strict';
angular.module('angular-autogrow', []).directive('autogrow', ['$window', '$timeout', function($window, $timeout){
return {
link: function($scope, $element, $attrs){
/**
* Default settings
*/
$scope.attrs = {
rows: 1,
maxLines: 999
};
/**
* Merge defaults with user preferences
*/
for(var i in $scope.attrs){
if($attrs[i]){
$scope.attrs[i] = parseInt($attrs[i]);
}
}
/**
* Calculates the vertical padding of the element
* @returns {number}
*/
$scope.getOffset = function(){
var style = $window.getComputedStyle($element[0], null),
props = ['paddingTop', 'paddingBottom'],
offset = 0;
for(var i=0; i<props.length; i++){
offset += parseInt(style[props[i]]);
}
return offset;
};
/**
* Sets textarea height as exact height of content
* @returns {boolean}
*/
$scope.autogrowFn = function(){
$timeout(function() {
var newHeight = 0, hasGrown = false;
if (($element[0].scrollHeight - $scope.offset) > $scope.maxAllowedHeight) {
$element[0].style.overflowY = 'scroll';
newHeight = $scope.maxAllowedHeight;
}
else {
$element[0].style.overflowY = 'hidden';
$element[0].style.height = 'auto';
newHeight = $element[0].scrollHeight - $scope.offset;
hasGrown = true;
}
$element[0].style.height = newHeight + 'px';
return hasGrown;
});
};
$scope.offset = $scope.getOffset();
$scope.lineHeight = ($element[0].scrollHeight / $scope.attrs.rows) - ($scope.offset / $scope.attrs.rows);
$scope.maxAllowedHeight = ($scope.lineHeight * $scope.attrs.maxLines) - $scope.offset;
$scope.$watch($attrs.ngModel, $scope.autogrowFn);
/**
* Auto-resize when there's content on page load
*/
if($element[0].value !== ''){
$scope.autogrowFn();
}
}
}
}]);
})();
Please note that I know it should be a Pull Request, but I didn't have the possibility to do this when I found the fix at work ;)
Hi,
Cool component. I am able to use it on a "regular" scenario but - I have a chat page, similar to how WhatsApp looks in which the text area is at the bottom and I want it to expand upwards and not downwards.
Is there a way to do it?
I've seen this example that does so but I am not able to get it to work within my angular app :-(
Thanks!
The rendering of the text in the textarea is very slow when you are trying to type and holds a specific key only (example: try to type aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
I found out that there is an issue in this part:
setting the height of the textarea to auto then setting it again to new height.
can the owners please add license information for using this library.
As per this Gitbub licensing guideline-
https://blog.github.com/2015-03-09-open-source-license-usage-on-github-com/
Unless you’ve explicitly told others that they can modify and reuse your work, you’ve only showed others your code; you haven’t shared it.
Is there a way to possibly have the textarea boxes autogrow to fit the value already in them when the page/view loads with them in it?
A textarea could be used with different font-families. Height changes should be triggered everytime font-family changes.
the textarea size is causing the text to jump momentarily in IE 11 with enter key pressed
I am trying to use autogrow with a contenteditable div and it works fine with Chrome and Firefox but I so far cannot seem to get it to work with IE11.
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