Optimized saving of cursor positions.

components/active/class.active.php

@@ -192,16 +192,30 @@ class Active extends Common {
 		}
 	}
 	
-	public function savePosition() {
+	public function savePositions( $positions ) {
 		
 		global $sql;
-		$query = "UPDATE active SET position=? WHERE path=? AND username=?;";
-		$bind_variables = array( $_POST["position"], $this->path, $this->username );
-		$return = $sql->query( $query, $bind_variables, 0, "rowCount" );
+		$positions = json_decode( $positions, true );
+		$query = "";
+		$bind_variables = array();
 		
-		if( $return > 0 ) {
+		if( json_last_error() == JSON_ERROR_NONE ) {
 			
-			echo formatJSEND( "success" );
+			foreach( $positions as $path => $cursor ) {
+				
+				$query .= "UPDATE active SET position=? WHERE path=? AND username=?;";
+				array_push( $bind_variables, json_encode( $cursor ), $path, $this->username );
+			}
+			
+			$return = $sql->query( $query, $bind_variables, 0, "rowCount" );
+			
+			if( $return > 0 ) {
+				
+				exit( formatJSEND( "success" ) );
+			}
+		} else {
+			
+			exit( formatJSEND( "success" ) );
 		}
 	}
 }

components/active/controller.php

@@ -86,8 +86,9 @@ if ($_GET['action']=='focused') {
     $Active->MarkFileAsFocused();
 }
 
-if ($_GET['action']=='save_position') {
+if ($_GET['action']=='save_positions') {
+	
+	ignore_user_abort( true );
     $Active->username = $_SESSION['user'];
-    $Active->path = $_POST['path'];
-    $Active->savePosition();
+    $Active->savePositions( $_POST["positions"] );
 }

components/active/init.js

@@ -1,7 +1,8 @@
 /*
- *  Copyright (c) Codiad & Kent Safranski (codiad.com), distributed
- *  as-is and without warranty under the MIT License. See
- *  [root]/license.txt for more. This information must remain intact.
+ *  Copyright (c) Codiad & Kent Safranski (codiad.com),
+ *  Isaac Brown ( telaaedifex.com ) distributed as-is and without 
+ *  warranty under the MIT License. See [root]/license.txt for more.
+ *  This information must remain intact.
  */
 
 (function(global, $) {
@@ -37,8 +38,7 @@
 		
 		// List of active file positions
 		positions: {},
-		position_timer: null,
-		
+
         //////////////////////////////////////////////////////////////////
         //
         // Check if a file is open.
@@ -101,7 +101,7 @@
                 }
                 _this.add(path, session, focus);
                 
-                if( ! ( _this.positions[`${path}`] === undefined ) ) {
+                if( ! ( _this.positions[`${path}`] === undefined ) && focus ) {
                 	
                 	_this.setPosition( _this.positions[`${path}`] );
                 }
@@ -148,7 +148,7 @@
                         _this.focus($(this).parent('li').attr('data-path'));
                     }
             });
-
+			
             // Remove from list.
             $('#list-active-files a>span')
                 .live('click', function(e) {
@@ -282,9 +282,11 @@
                     });
                 }
             });
-
+			
             // Prompt if a user tries to close window without saving all filess
             window.onbeforeunload = function(e) {
+            	
+            	codiad.active.uploadPositions();
                 if ($('#list-active-files li.changed')
                     .length > 0) {
                     var e = e || window.event;
@@ -404,7 +406,12 @@
             
             /* Check for users registered on the file. */
             this.check(path);
-
+			
+			if( ! ( this.positions[`${path}`] === undefined ) ) {
+                	
+            	this.setPosition( this.positions[`${path}`] );
+            }
+			
             /* Notify listeners. */
             amplify.publish('active.onFocus', path);
         },
@@ -992,35 +999,27 @@
             }
         },
 		
+		uploadPositions: function() {
+			
+			$.ajax({
+				type: 'POST',
+				url: codiad.active.controller + '?action=save_positions',
+				data: {
+					positions: ( JSON.stringify( codiad.active.positions ) )
+				},
+				success: function( data ) {
+				},
+			});
+		},
+		
 		savePosition: function() {
 			
 			let editor = codiad.editor.getActive();
 			let session = editor.getSession();
 			let path = session.path;
-			let position = this.getPosition( null, true );
+			let position = this.getPosition( path, true );
 			
 			this.positions[path] = position;
-			
-			setTimeout( function() {
-				
-				if(  ( codiad.active.position_timer + 500 ) > Date.now() ) {
-					
-					return;
-				}
-				
-				$.ajax({
-					type: 'POST',
-					url: codiad.active.controller + '?action=save_position',
-					data: {
-						path: path,
-						position: JSON.stringify( position )
-					},
-					success: function( data ) {
-						
-						codiad.active.position_timer = Date.now();
-					},
-				});
-			}, 500);
 		},
 		
 		getPosition: function( path=null, live=false ) {
@@ -1052,6 +1051,16 @@
 					position = this.positions[path].position;
 				}
 			}
+			
+			if( position == null ) {
+				
+				position = {
+					
+					column: 0,
+					row: 0
+				};
+			}
+			
 			return position;
 		},
 		

components/editor/init.js

@@ -474,7 +474,7 @@
             this.setSession(session, i);
 
             this.changeListener(i);
-            //this.cursorTracking(i);
+            this.cursorTracking(i);
             this.clickListener(i);
             this.bindKeys(i);
 
@@ -1272,17 +1272,19 @@
         //////////////////////////////////////////////////////////////////
 
         cursorTracking: function(i) {
+        	
             i = i || this.getActive();
             if (! i) return;
-            clearInterval(codiad._cursorPoll);
-            codiad._cursorPoll = setInterval(function() {
-                $('#cursor-position')
-                    .html(i18n('Ln') + ': '
+            i.selection.on("changeCursor", function(e){
+            	
+            	codiad.active.savePosition();
+            	$('#cursor-position')
+                .html(i18n('Ln') + ': '
                           + (i.getCursorPosition().row + 1)
                           + ' · ' + i18n('Col') + ': '
                           + i.getCursorPosition().column
-                         );
-            }, 100);
+                        );
+            });
         },
 
         //////////////////////////////////////////////////////////////////

components/poller/init.js

@@ -1,18 +1,21 @@
 /*
- *  Copyright (c) Codiad & Kent Safranski (codiad.com), distributed
- *  as-is and without warranty under the MIT License. See
- *  [root]/license.txt for more. This information must remain intact.
+ *  Copyright (c) Codiad & Kent Safranski (codiad.com),
+ *  Isaac Brown ( telaaedifex.com ) distributed as-is and without 
+ *  warranty under the MIT License. See [root]/license.txt for more.
+ *  This information must remain intact.
  */
 (function(global, $) {
 
 	var codiad = global.codiad;
 
 	$(function() {
+		
 		codiad.poller.init();
 	});
 
 	codiad.poller = {
 		
+		poller: null,
 		interval: 10000,
 		
 		init: function() {
@@ -20,11 +23,11 @@
 			let _this = this;
 			let interval = null;
 			
-			setInterval( function() {
+			_this.poller = setInterval( function() {
 				
 				_this.checkAuth();
 				_this.saveDrafts();
-				
+				codiad.active.uploadPositions();
 			}, _this.interval);
 		},