+ this.galleryImages = [];
+ this.text = null;
+ this.has_local_changes = false;
+ this.active = true;
+ this._lock = -1;
+ this._context_lock = -1;
+ this._lock_count = 0;
+ };
+
+ triggerDocumentChanged() {
+ $(document).trigger('wlapi_document_changed', this);
+ }
+
+ /*
+ * Fetch text of this document.
+ */
+ fetch(params) {
+ params = $.extend({}, noops, params);
+ var self = this;
+ $.ajax({
+ method: "GET",
+ url: reverse("ajax_document_text", self.id),
+ data: {"revision": self.revision},
+ dataType: 'json',
+ success: function(data) {
+ var changed = false;
+
+ if (self.text === null || self.revision !== data.revision) {
+ self.text = data.text;
+ self.revision = data.revision;
+ self.gallery = data.gallery;
+ changed = true;
+ self.triggerDocumentChanged();
+ };
+
+ self.has_local_changes = false;
+ params['success'](self, changed);
+ },
+ error: function() {
+ params['failure'](self, "Nie udało się wczytać treści dokumentu.");
+ }
+ });
+ }
+
+ /*
+ * Fetch history of this document.
+ */
+ fetchHistory(params) {
+ /* this doesn't modify anything, so no locks */
+ params = $.extend({}, noops, params);
+ var self = this;
+ $.ajax({
+ method: "GET",
+ url: reverse("ajax_document_history", self.id) + "?before=" + params.before,
+ dataType: 'json',
+ success: function(data) {
+ params['success'](self, data);
+ },
+ error: function() {
+ params['failure'](self, "Nie udało się wczytać historii dokumentu.");
+ }
+ });
+ }
+
+ fetchDiff(params) {
+ /* this doesn't modify anything, so no locks */
+ var self = this;
+ params = $.extend({
+ 'from': self.revision,
+ 'to': self.revision
+ }, noops, params);
+ $.ajax({
+ method: "GET",
+ url: reverse("ajax_document_diff", self.id),
+ dataType: 'html',
+ data: {
+ "from": params['from'],
+ "to": params['to']
+ },
+ success: function(data) {
+ params['success'](self, data);
+ },
+ error: function() {
+ params['failure'](self, "Nie udało się wczytać porównania wersji.");
+ }
+ });
+ }
+
+ checkRevision(params) {
+ /* this doesn't modify anything, so no locks */
+ var self = this;
+ let active = self.active;
+ self.active = false;
+ $.ajax({
+ method: "GET",
+ url: reverse("ajax_document_rev", self.id),
+ data: {
+ 'a': active,
+ },
+ dataType: 'text',
+ success: function(data) {
+ if (data == '') {
+ if (params.error)
+ params.error();
+ }
+ else if (data != self.revision)
+ params.outdated();
+ }
+ });
+ }
+
+ /*
+ * Fetch gallery
+ */
+ refreshGallery(params) {
+ params = $.extend({}, noops, params);
+ var self = this;
+ if (!self.galleryLink) {
+ params['failure'](self, 'Brak galerii.');
+ return;
+ }
+ $.ajax({
+ method: "GET",
+ url: reverse("ajax_document_gallery", self.galleryLink),
+ dataType: 'json',
+ // data: {},
+ success: function(data) {
+ self.galleryImages = data;
+ params['success'](self, data);
+ },
+ error: function(xhr) {
+ switch (xhr.status) {