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Implement letter avatar in client-side as avatar widget's component

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This commit is contained in:
Hadi Nategh 2019-10-14 13:41:58 +02:00
parent e8a9026253
commit 0303adbc35
1 changed files with 54 additions and 0 deletions
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54
api/js/etemplate/et2_widget_image.js
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@ -601,5 +601,59 @@ jQuery.extend(et2_avatar,
jQuery('#_cropper_image').cropper('replace',e.target.result);
};
reader.readAsDataURL(file);
},
/**
* background oolor codes
*/
LAVATAR_BG_COLORS: [
'#5a8770', '#b2b7bb', '#6fa9ab', '#f5af29',
'#0088b9', '#f18636', '#d93a37', '#a6b12e',
'#0088b9', '#f18636', '#d93a37', '#a6b12e',
'#5c9bbc', '#f5888d', '#9a89b5', '#407887',
'#9a89b5', '#5a8770', '#d33f33', '#a2b01f',
'#f0b126', '#0087bf', '#f18636', '#0087bf',
'#b2b7bb', '#72acae', '#9c8ab4', '#5a8770',
'#eeb424', '#407887'
],
/**
* Text color
*/
LAVATAR_TEXT_COLOR: '#ffffff',
LAVATAR_SIZE: 128,
/**
* Generate letter avatar with given data
* @param {type} _fname
* @param {type} _lname
* @param {type} _id
* @returns {string} return data url
*/
lavatar: function(_fname, _lname, _id){
var str = _fname + _lname + _id;
var getBgColor = function(_str)
{
var hash = 0;
for (var i=0; i< _str.length; i++)
{
hash = _str[i].charCodeAt() + hash;
}
return et2_avatar.LAVATAR_BG_COLORS[hash % et2_avatar.LAVATAR_BG_COLORS.length];
};
var bg = getBgColor(str);
var size = et2_avatar.LAVATAR_SIZE * (window.devicePixelRatio ? window.devicePixelRatio : 1);
var text = _fname[0].toUpperCase()+_lname[0].toUpperCase();
var canvas = document.createElement('canvas');
canvas.width = size;
canvas.height = size;
var context = canvas.getContext("2d");
context.fillStyle = bg;
context.fillRect (0, 0, canvas.width, canvas.height);
context.font = Math.round(canvas.width/2)+"px Arial";
context.textAlign = "center";
context.fillStyle = et2_avatar.LAVATAR_TEXT_COLOR;
context.fillText(text, size / 2, size / 1.5);
return canvas.toDataURL();
}
});