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Code Issues Releases Wiki Activity

Add untrack method to filter tracker

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This commit is contained in:
Jeremy Ruston 2025-01-06 11:37:58 +00:00
parent e78d3ae04e
commit 964ced35ff
1 changed files with 17 additions and 5 deletions
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22
core/modules/filter-tracker.js
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@ -15,6 +15,7 @@ Class to track the results of a filter string
function FilterTracker(wiki) {
this.wiki = wiki;
this.trackers = [];
this.nextTrackerId = 1;
this.wiki.addEventListener("change",this.handleChangeEvent.bind(this));
}
@ -24,7 +25,7 @@ FilterTracker.prototype.handleChangeEvent = function(changes) {
};
/*
Add a tracker to the filter tracker
Add a tracker to the filter tracker. Returns null if any of the parameters are invalid, or a tracker id if the tracker was added successfully
filterString: the filter string to track
fnEnter: function to call when a title enters the filter results. Called even if the tiddler does not actually exist. Called as (title), and should return a truthy value that is stored in the tracker as the "enterValue"
fnLeave: function to call when a title leaves the filter results. Called as (title,enterValue)
@ -32,17 +33,28 @@ fnChange: function to call when a tiddler changes in the filter results. Only ca
*/
FilterTracker.prototype.track = function(filterString,fnEnter,fnLeave,fnChange) {
// Add the tracker details
var index = this.trackers.length;
this.trackers.push({
var tracker = {
id: this.nextTrackerId++,
filterString: filterString,
fnEnter: fnEnter,
fnLeave: fnLeave,
fnChange: fnChange,
previousResults: [], // Results from the previous time the tracker was processed
resultValues: {} // Map by title to the value returned by fnEnter
});
};
this.trackers.push(tracker);
// Process the tracker
this.processTracker(index);
this.processTracker(this.trackers.length - 1);
return tracker.id;
};
FilterTracker.prototype.untrack = function(id) {
for(var t=0; t<this.trackers.length; t++) {
if(this.trackers[t].id === id) {
this.trackers.splice(t,1);
break;
}
}
};
FilterTracker.prototype.processTrackers = function() {