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WME Reload Map Position Fix

Keeps track of the current map center and zoom and restores it upon reloading.

当前为 2020-09-09 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name            WME Reload Map Position Fix
  3. // @namespace       https://greasyfork.org/users/166843
  4. // @description     Keeps track of the current map center and zoom and restores it upon reloading.
  5. // @version         2020.09.08.01
  6. // @author          dBsooner
  7. // @grant           none
  8. // @require         https://greasyfork.org/scripts/24851-wazewrap/code/WazeWrap.js
  9. // @license         GPLv3
  10. // @include         /^https:\/\/(www|beta)\.waze\.com\/(?!user\/)(.{2,6}\/)?editor\/?.*$/
  11. // @contributionURL https://github.com/WazeDev/Thank-The-Authors
  12. // ==/UserScript==
  13.  
  14. /* global window, localStorage, sessionStorage, W, $, OpenLayers */
  15.  
  16. const SETTINGS_STORE_NAME = 'WME_RMPF';
  17.  
  18. let _bootstrapTimeout;
  19.  
  20. function updatedSavedMapPosition() {
  21.     const storage = { savedCenter: W.map.getCenter(), savedZoom: W.map.getZoom() };
  22.     localStorage.setItem(SETTINGS_STORE_NAME, JSON.stringify(storage));
  23.     sessionStorage.setItem(SETTINGS_STORE_NAME, JSON.stringify(storage));
  24. }
  25.  
  26. function init() {
  27.     const loadedSettings = $.parseJSON(sessionStorage.getItem(SETTINGS_STORE_NAME)) || $.parseJSON(localStorage.getItem(SETTINGS_STORE_NAME)),
  28.         savedCenter = (loadedSettings) ? loadedSettings.savedCenter : W.map.getCenter(),
  29.         savedZoom = (loadedSettings) ? loadedSettings.savedZoom : W.map.getZoom(),
  30.         currCenter = W.map.getCenter(),
  31.         currZoom = W.map.getZoom();
  32.     if ((currCenter.lon !== savedCenter.lon) || (currCenter.lat !== savedCenter.lat) || (savedZoom !== currZoom))
  33.         W.map.getOLMap().moveTo(new OpenLayers.LonLat([savedCenter.lon, savedCenter.lat], savedZoom));
  34.     W.map.events.register('zoomend', null, updatedSavedMapPosition);
  35.     W.map.events.register('moveend', null, updatedSavedMapPosition);
  36.     window.addEventListener('beforeunload', updatedSavedMapPosition, false);
  37. }
  38.  
  39. function bootstrap(tries) {
  40.     if (W && W.map && $) {
  41.         window.clearTimeout(_bootstrapTimeout);
  42.         _bootstrapTimeout = undefined;
  43.         init();
  44.     }
  45.     else if (tries < 1000) {
  46.         console.log(`RMPF: Bootstrap failed. Retrying ${tries} of 1000`);
  47.         _bootstrapTimeout = window.setTimeout(bootstrap, 200, ++tries);
  48.     }
  49.     else {
  50.         console.error('RMPF: Bootstrap timed out waiting for WME to become ready.');
  51.     }
  52. }
  53.  
  54. bootstrap(1);