X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/0fd55a38c4873d5916a3553d7510b9308f4eee6d..03c5ba6e50339d7bc470eb6d7f051483eff1e96b:/platforma/static/js/wiki/wikiapi.js?ds=sidebyside

diff --git a/platforma/static/js/wiki/wikiapi.js b/platforma/static/js/wiki/wikiapi.js
new file mode 100644
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+++ b/platforma/static/js/wiki/wikiapi.js
@@ -0,0 +1,211 @@
+(function($) {
+	
+	$.wikiapi = {};
+	
+	var noop = function() {};
+	var noops = {'success': noop, 'failure': noop};
+	
+	/*
+	 * Return absolute reverse path of given named view.
+	 * (at least he have it hard-coded in one place)
+	 * 
+	 * TODO: think of a way, not to hard-code it here ;) 
+	 * 
+	 */
+	function reverse() {
+		var vname = arguments[0];
+			
+		if(vname == "ajax_document_text") {
+			var path = "/" + arguments[1] + "/text";
+			if (arguments[2] !== undefined) 
+				path += "/" + arguments[2];
+			return path;
+		}
+			
+		if (vname == "ajax_document_history") {
+			return "/" + arguments[1] + "/history";
+		}			
+					
+		if(vname == "ajax_document_diff")
+			return "/" + arguments[1] + "/diff/" + arguments[2] + "/" + arguments[3] 
+			
+		console.log("Couldn't reverse match:", vname);
+		return "/404.html";		
+	};
+	
+	/*
+	 * Document Abstraction  
+	 */
+	function WikiDocument(element_id) {
+		var meta = $('#'+element_id);
+		
+		this.id = meta.attr('data-document-name');		
+		this.revision = $("*[data-key='revision']", meta).text();
+		this.gallery = $("*[data-key='gallery']", meta).text();
+		
+		this.text = null;
+		
+		this.has_local_changes = false;
+		this._lock = -1;
+		this._context_lock = -1;
+		this._lock_count = 0; 
+	}
+	
+//	WikiDocument.prototype.lock = function() {
+//		if(this._lock < 0) {
+//			this._lock = Math.random();
+//			this._context_lock = this._lock;
+//			this._lock_count = 1;
+//			return this._lock;
+//		}
+//		
+//		// reentrant locks 
+//		if(this._context_lock === this._lock) {
+//			this._lock_count += 1;
+//			return this._lock;
+//		}
+//		
+//		throw "Document operation in progress. Try again later."
+//	};
+//		
+//	WikiDocument.prototype.unlock = function(lockNumber) {
+//		if(this.locked === lockNumber) {
+//			this._lock_count -= 1;
+//			
+//			if(this._lock_count === 0) {
+//				this._lock = -1;
+//				this._context_lock = -1;
+//			};			
+//			return;
+//		}
+//		throw "Trying to unlock with wrong lockNumber";
+//	};
+//	
+//	/*
+//	 * About to leave context of current lock.
+//	 */
+//	WikiDocument.prototype.leaveContext = function() {
+//		var old = this._context_lock;
+//		this._context_lock = -1;
+//		return old;
+//	};
+	
+	/*
+	 * Fetch text of this document.
+	 */
+	WikiDocument.prototype.fetch = function(params) {		
+		params = $.extend({}, noops, params);
+		var self = this;
+		
+		$.ajax({
+			method: "GET",
+			url: reverse("ajax_document_text", self.id),
+			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.has_local_changes = false;				
+				params['success'](self, changed);
+			},
+			error: function() {		
+				params['failure'](self, "Nie udało się wczytać treści dokumentu.");
+			}
+		});						
+	};
+	
+	/*
+	 * Fetch history of this document.
+	 * 
+	 * from - First revision to fetch (default = 0)
+	 * upto - Last revision to fetch (default = tip)
+	 * 
+	 */
+	WikiDocument.prototype.fetchHistory = function(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),
+			dataType: 'json',
+			data: {"from": params['from'], "upto": params['upto']},
+			success: function(data) {
+				params['success'](self, data);
+			},
+			error: function() {
+				params['failure'](self, "Nie udało się wczytać treści dokumentu.");
+			}
+		});						
+	};
+	
+	/*
+	 * Set document's text
+	 */
+	WikiDocument.prototype.setText = function(text) {				
+		this.text = text;
+		this.has_local_changes = true;			
+	};
+	
+	/*
+	 * Set document's gallery link
+	 */
+	WikiDocument.prototype.setGallery = function(gallery) {				
+		this.gallery = gallery;
+		this.has_local_changes = true;			
+	};
+	
+	/*
+	 * Save text back to the server
+	 */
+	WikiDocument.prototype.save = function(comment, success, failure){
+		var self = this;
+		
+		if (!self.has_local_changes) {
+			return success(self, "Nie ma zmian do zapisania.");
+		}
+		
+		/* you can't set text while some is fetching it (or saving) */
+		var metaComment = '<!--';
+		metaComment += '\n\tgallery:' + self.gallery;
+		metaComment += '\n-->'
+		
+		var data = {
+			name: self.id,
+			text: self.text,
+			parent_revision: self.revision,
+			comment: comment,
+		};
+		
+		$.ajax({
+			url: reverse("ajax_document_text", self.id),
+			type: "POST",
+			dataType: "json",
+			data: data,
+			success: function(data){
+				var changed = false;
+				if (data.text) {
+					self.text = data.text;
+					self.revision = data.revision;
+					self.gallery = data.gallery;
+					changed = true;
+				}
+				success(self, changed);
+			},
+			error: function(){
+				failure(self, "Nie udało się zapisać.");
+			}
+		});		
+	}; /* end of save() */
+	
+	$.wikiapi.WikiDocument = WikiDocument;
+	
+})(jQuery);