132 lines
3.1 KiB
JavaScript
132 lines
3.1 KiB
JavaScript
import { equal } from '@ember/object/computed';
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import { isBlank } from '@ember/utils';
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import Component from '@ember/component';
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import { set, computed } from '@ember/object';
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import { encodeString, decodeString } from 'vault/utils/b64';
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const B64 = 'base64';
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const UTF8 = 'utf-8';
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export default Component.extend({
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tagName: 'button',
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attributeBindings: ['type', 'data-test-transit-b64-toggle'],
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type: 'button',
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classNames: ['button', 'b64-toggle'],
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classNameBindings: ['isInput:is-input:is-textarea'],
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/*
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* Whether or not the toggle is associated with an input.
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* Also bound to `is-input` and `is-textarea` classes
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* Defaults to true
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*
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* @public
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* @type boolean
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*/
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isInput: true,
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/*
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* The value that will be mutated when the encoding is toggled
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*
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* @public
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* @type string
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*/
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value: null,
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/*
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* The encoding of `value` when the component is initialized.
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* Defaults to 'utf-8'.
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* Possible values: 'utf-8' and 'base64'
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*
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* @public
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* @type string
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*/
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initialEncoding: UTF8,
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/*
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* A cached version of value - used to determine if the input has changed since encoding.
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*
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* @private
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* @type string
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*/
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_value: '',
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/*
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* The current encoding of `value`.
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* Possible values: 'utf-8' and 'base64'
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*
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* @private
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* @type string
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*/
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currentEncoding: '',
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/*
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* The encoding when we last mutated `value`.
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* Possible values: 'utf-8' and 'base64'
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*
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* @private
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* @type string
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*/
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lastEncoding: '',
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/*
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* Is the value known to be base64-encoded.
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*
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* @private
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* @type boolean
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*/
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isBase64: equal('currentEncoding', B64),
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/*
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* Does the current value match the cached _value, i.e. has the input been mutated since we encoded.
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*
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* @private
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* @type boolean
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*/
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valuesMatch: computed('value', '_value', function () {
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const { value, _value } = this;
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const anyBlank = isBlank(value) || isBlank(_value);
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return !anyBlank && value === _value;
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}),
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init() {
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this._super(...arguments);
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const initial = this.initialEncoding;
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set(this, 'currentEncoding', initial);
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if (initial === B64) {
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set(this, '_value', this.value);
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set(this, 'lastEncoding', B64);
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}
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},
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didReceiveAttrs() {
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this._super();
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// if there's no value, reset encoding
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if (this.value === '') {
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set(this, 'currentEncoding', UTF8);
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return;
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}
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// the value has changed after we transformed it so we reset currentEncoding
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if (this.isBase64 && !this.valuesMatch) {
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set(this, 'currentEncoding', UTF8);
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}
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// the value changed back to one we previously had transformed
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if (this.lastEncoding === B64 && this.valuesMatch) {
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set(this, 'currentEncoding', B64);
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}
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},
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click() {
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let val = this.value;
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const isUTF8 = this.currentEncoding === UTF8;
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if (!val) {
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return;
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}
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let newVal = isUTF8 ? encodeString(val) : decodeString(val);
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const encoding = isUTF8 ? B64 : UTF8;
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set(this, 'value', newVal);
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set(this, '_value', newVal);
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set(this, 'lastEncoding', encoding);
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set(this, 'currentEncoding', encoding);
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},
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});
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