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c90cc004dc
When a snackbar with a button callback is dismissed, this translates to a rejected promise from sendRequestForResult(). We need to catch this in order to avoid a spurious 'JavaScript Error: "uncaught exception: undefined"' message appearing in the console and possibly causing confusion. MozReview-Commit-ID: 7hsAOAMTeDP --HG-- extra : rebase_source : 6c5eb28d2e0dcf39a35b310d1e1c45cfc47f272b
81 lines
2.0 KiB
JavaScript
81 lines
2.0 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
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this.EXPORTED_SYMBOLS = ["Snackbars"];
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "EventDispatcher", "resource://gre/modules/Messaging.jsm");
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const LENGTH_INDEFINITE = -2;
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const LENGTH_LONG = 0;
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const LENGTH_SHORT = -1;
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var Snackbars = {
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LENGTH_INDEFINITE: LENGTH_INDEFINITE,
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LENGTH_LONG: LENGTH_LONG,
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LENGTH_SHORT: LENGTH_SHORT,
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show: function(aMessage, aDuration, aOptions) {
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// Takes care of the deprecated toast calls
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if (typeof aDuration === "string") {
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[aDuration, aOptions] = migrateToastIfNeeded(aDuration, aOptions);
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}
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let msg = {
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type: 'Snackbar:Show',
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message: aMessage,
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duration: aDuration,
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};
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if (aOptions && aOptions.backgroundColor) {
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msg.backgroundColor = aOptions.backgroundColor;
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}
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if (aOptions && aOptions.action) {
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msg.action = {};
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if (aOptions.action.label) {
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msg.action.label = aOptions.action.label;
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}
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EventDispatcher.instance.sendRequestForResult(msg)
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.then(result => aOptions.action.callback())
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.catch(result => {
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if (result === null) {
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/* The snackbar was dismissed without executing the callback, nothing to do here. */
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} else {
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Cu.reportError(result);
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}
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});
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} else {
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EventDispatcher.instance.sendRequest(msg);
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}
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}
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};
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function migrateToastIfNeeded(aDuration, aOptions) {
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let duration;
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if (aDuration === "long") {
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duration = LENGTH_LONG;
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}
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else {
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duration = LENGTH_SHORT;
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}
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let options = {};
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if (aOptions && aOptions.button) {
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options.action = {
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label: aOptions.button.label,
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callback: () => aOptions.button.callback(),
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};
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}
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return [duration, options];
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}
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