Method _updateCollisions

prefsKeybinding.js:572–607

(position, removed, added)

    }

    _updateCollisions(position, removed, added) {
        let map = new Map();
        for (const binding of this._model) {
            for (const combo of binding.combos) {
                if (combo.disabled)
                    continue;
                map.set(combo.keystr, (map.get(combo.keystr) || new Set()).add(binding.action));
            }
        }
        let changed = new Set();
        for (const [keystr, actions] of map.entries()) {
            if (actions.size > 1) {
                if (!this.collisions.has(keystr)) {
                    for (const action of actions) {
                        changed.add(action);
                    }
                } else {
                    let old = this.collisions.get(keystr);
                    for (const action of symmetricDifference(old, actions)) {
                        changed.add(action);
                    }
                }
                this.collisions.set(keystr, actions);
            } else {
                for (const action of actions) {
                    changed.add(action);
                }
                this.collisions.delete(keystr);
            }
        }
        if (changed.size > 0) {
            for (const action of changed) {
                this.emit(`collisions-changed::${action}`);
            }
        }
    }
});

const ComboRow = GObject.registerClass({