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Diffstat (limited to 'src/webex/pages/common.ts')
-rw-r--r-- | src/webex/pages/common.ts | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/webex/pages/common.ts b/src/webex/pages/common.ts new file mode 100644 index 000000000..695e5fc1d --- /dev/null +++ b/src/webex/pages/common.ts @@ -0,0 +1,31 @@ +/* + This file is part of TALER + (C) 2018 GNUnet e.V. + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + TALER 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 General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +/** + * Common helper functions for all web extension pages. + */ + +/** + * Make sure that a function is executed exactly once + * after the DOM has been loaded. + */ +export function runOnceWhenReady(f: () => void): void { + if (document.readyState === "loading") { + document.addEventListener("DOMContentLoaded", f); + return; + } + f(); +} |