96 lines
3.6 KiB
JavaScript
96 lines
3.6 KiB
JavaScript
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/* Check and perform a reset of the styles due to a change over a node definition model (if possible).
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*
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* In order to use and test this function in any view, we have removed this code
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* from user-actions Class.
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*
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* forceStyleUpdate: it will reset the styles in any case, no matter the schema or the geometry.
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* resetQueryReady: set as false ready property for query-schema-model and query-geometry-model
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* in order to wait for a node change before checking if reset styles is necessary.
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*
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*/
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module.exports = function (nodeDefModel, layerDefModel, forceStyleUpdate, resetQueryReady) {
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if (!nodeDefModel) throw new Error('nodeDefModel is required');
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if (!layerDefModel) throw new Error('layerDefModel is required');
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var CHANGE_READY = 'change:ready';
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var onQueryGeometryAndSchemaReady;
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var styleModel = layerDefModel.styleModel;
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var queryGeometryModel = nodeDefModel.queryGeometryModel;
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var querySchemaModel = nodeDefModel.querySchemaModel;
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onQueryGeometryAndSchemaReady = function () {
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if (queryGeometryModel.get('ready') && querySchemaModel.get('ready')) {
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queryGeometryModel.unbind(CHANGE_READY, onQueryGeometryAndSchemaReady);
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querySchemaModel.unbind(CHANGE_READY, onQueryGeometryAndSchemaReady);
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} else {
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return; // wait until ready
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}
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var CHANGE_STATUS = 'change:status';
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var saveDefaultStylesIfStillRelevant;
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saveDefaultStylesIfStillRelevant = function () {
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var applyStylesAndSave = function () {
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var simpleGeometryType = queryGeometryModel.get('simple_geom');
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if (simpleGeometryType) {
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styleModel.setDefaultPropertiesByType('simple', simpleGeometryType);
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} else {
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styleModel.setDefaultPropertiesByType('none'); // fallback if there is no known geometry
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}
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layerDefModel.save();
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};
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var styleTypeApplied = styleModel.get('type');
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if (queryGeometryModel.isDone() && querySchemaModel.isDone()) {
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queryGeometryModel.unbind(CHANGE_STATUS, saveDefaultStylesIfStillRelevant);
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querySchemaModel.unbind(CHANGE_STATUS, saveDefaultStylesIfStillRelevant);
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} else {
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return; // wait until ready
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}
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// If the geometry doesn't change and all columns used for style-def-model are still present + the styles are not custom
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// we can reset the style form with the geometry provided
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var haveDifferentSchema = querySchemaModel.hasDifferentSchemaThan(styleModel.getColumnsUsedForStyle());
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if (
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styleTypeApplied !== 'none' &&
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!forceStyleUpdate && (
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(!queryGeometryModel.hasChanged('simple_geom') && !haveDifferentSchema) ||
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layerDefModel.get('cartocss_custom')
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)
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) {
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return;
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}
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if ( // Only apply changes if:
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(
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layerDefModel.collection.contains(layerDefModel) && // layer still exist
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layerDefModel.get('source') === nodeDefModel.id // node is still the head of layer
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) || forceStyleUpdate // we force the style update
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) {
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applyStylesAndSave();
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}
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};
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saveDefaultStylesIfStillRelevant();
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if (!queryGeometryModel.isFetched()) {
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queryGeometryModel.bind(CHANGE_STATUS, saveDefaultStylesIfStillRelevant);
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}
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if (!querySchemaModel.isFetched()) {
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querySchemaModel.bind(CHANGE_STATUS, saveDefaultStylesIfStillRelevant);
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}
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};
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if (resetQueryReady) {
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queryGeometryModel.set('ready', false);
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querySchemaModel.set('ready', false);
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}
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queryGeometryModel.bind(CHANGE_READY, onQueryGeometryAndSchemaReady);
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querySchemaModel.bind(CHANGE_READY, onQueryGeometryAndSchemaReady);
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onQueryGeometryAndSchemaReady();
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};
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