signal-desktop/js/views/attachment_view.js
2015-01-11 01:27:22 -10:00

41 lines
1.4 KiB
JavaScript

/* vim: ts=4:sw=4:expandtab
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
(function () {
'use strict';
Whisper.AttachmentView = Backbone.View.extend({
tagName: "img",
encode: function () {
return new Promise(function(resolve, reject) {
var blob = new Blob([this.model.data], { type: this.model.contentType });
var FR = new FileReader();
FR.onload = function(e) {
resolve(e.target.result);
};
FR.onerror = reject;
FR.readAsDataURL(blob);
}.bind(this));
},
render: function() {
this.encode().then(function(base64) {
this.$el.attr('src', base64);
this.$el.trigger('update');
}.bind(this));
return this;
}
});
})();