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Improves error handling

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Zeno Rocha
2015-09-20 13:47:35 -07:00
parent ec20389775
commit 52b444609e
2 changed files with 29 additions and 29 deletions
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56
src/clipboard.js
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@ -1,49 +1,49 @@
var CustomEvent = require('custom-event');
class Clipboard {
constructor(triggers) {
this.triggers = document.querySelectorAll(triggers);
this.init();
}
init() {
if (this.triggers.length === 0) {
throw new Error('The provided selector is empty');
if (!this.triggers.length) {
throw new Error('No matches were found for the provided selector');
}
[].forEach.call(this.triggers, (trigger) => this.bind(trigger));
}
bind(trigger) {
trigger.addEventListener('click', function(e) {
let action = e.currentTarget.getAttribute('data-action');
let target = e.currentTarget.getAttribute('data-target');
let text = e.currentTarget.getAttribute('data-text');
trigger.addEventListener('click', (e) => this.validate(e));
}
if (!action === 'copy' || !action === 'cut') {
throw new Error('Invalid "data-action" attribute');
}
else if (!target && !text) {
throw new Error('Missing "data-target" or "data-text" attribute');
}
validate(e) {
let trigger = e.currentTarget;
let action = trigger.getAttribute('data-action') || 'copy';
let target = trigger.getAttribute('data-target');
let text = trigger.getAttribute('data-text');
new ClipboardAction({
action : action,
target : target,
text : text,
trigger : e.currentTarget
});
});
if (action !== 'copy' && action !== 'cut') {
throw new Error('Invalid "data-action" value, use either "copy" or "cut"');
}
if (!target && !text) {
throw new Error('Missing required attributes, use either "data-target" or "data-text"');
}
if (target) {
target = document.getElementById(target);
if (!target) throw new Error('Invalid "data-target" selector, use a value that matches an ID');
}
new ClipboardAction(action, target, text, trigger);
}
}
class ClipboardAction {
constructor(options) {
this.action = options.action || 'copy';
this.target = document.getElementById(options.target);
this.text = options.text;
this.trigger = options.trigger;
constructor(action, target, text, trigger) {
this.action = action;
this.target = target;
this.text = text;
this.trigger = trigger;
this.selectedText = '';