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compress a bit avatar images' base64 headers for jpeg and png for local storage, #339

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This commit is contained in:
Simon Grim 2016-01-18 00:21:19 +05:00
parent 57cc22a2fc
commit 573d28723b
1 changed files with 16 additions and 2 deletions
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18
js/twister_io.js
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@ -382,6 +382,14 @@ function getAvatar(username, img) {
var data = _getResourceFromStorage('avatar:' + username);
if (data) {
switch (data.substr(0, 4)) {
case 'jpg/':
data = 'data:image/jpeg;base64,/9j/' + data.slice(4);
break;
case 'png/':
data = 'data:image/png;base64,' + data.slice(4);
break;
}
_avatarMap[username] = data;
img.attr('src', data);
} else {
@ -389,8 +397,14 @@ function getAvatar(username, img) {
function(req, imagedata) {
if (imagedata && imagedata.length) {
_avatarMap[req.username] = imagedata;
if (imagedata !== 'img/genericPerson.png')
_putResourceIntoStorage('avatar:' + username, imagedata);
if (imagedata !== 'img/genericPerson.png') {
if (imagedata.substr(0, 27) === 'data:image/jpeg;base64,/9j/')
_putResourceIntoStorage('avatar:' + username, 'jpg/' + imagedata.slice(27));
else if (imagedata.substr(0, 22) === 'data:image/png;base64,')
_putResourceIntoStorage('avatar:' + username, 'png/' + imagedata.slice(22));
else
_putResourceIntoStorage('avatar:' + username, imagedata);
}
req.img.attr('src', imagedata);
}
}, {username: username, img: img}