From e8d85c1173353693934cf0fdc396b7f0432f9504 Mon Sep 17 00:00:00 2001
From: Thomas Muehlichen <ext_github_tm@linkwerk.com>
Date: Wed, 25 Mar 2015 12:04:10 +0100
Subject: [PATCH 1/3] feature #2558 added functions to get all attributes at
 the current or an abritrary position

---
 src/static/js/AttributeManager.js | 52 ++++++++++++++++++++++++++++++-
 1 file changed, 51 insertions(+), 1 deletion(-)

diff --git a/src/static/js/AttributeManager.js b/src/static/js/AttributeManager.js
index 865569c5..d2ec324b 100644
--- a/src/static/js/AttributeManager.js
+++ b/src/static/js/AttributeManager.js
@@ -98,7 +98,7 @@ AttributeManager.prototype = _(AttributeManager.prototype).extend({
   
   /*
     Gets all attributes on a line
-    @param lineNum: the number of the line to set the attribute for 
+    @param lineNum: the number of the line to get the attribute for 
   */
   getAttributesOnLine: function(lineNum){
     // get attributes of first char of line
@@ -122,6 +122,56 @@ AttributeManager.prototype = _(AttributeManager.prototype).extend({
     return [];
   },
   
+  /*
+    Gets all attributes at a position containing line number and column
+    @param lineNumber starting with zero
+    @param column starting with zero
+    returns a list of attributes in the format 
+    [ ["key","value"], ["key","value"], ...  ]
+  */
+  getAttributesOnPosition: function(lineNumber, column){
+    // get all attributes of the line
+    var aline = this.rep.alines[lineNumber];
+    
+    if (!aline) {
+        return [];
+    }
+    // iterate through all operations of a line
+    var opIter = Changeset.opIterator(aline);
+    
+    // we need to sum up how much characters each operations take until the wanted position
+    var currentPointer = 0;
+    var attributes = [];    
+    var currentOperation;
+    
+    while (opIter.hasNext()) {
+      currentOperation = opIter.next();
+      currentPointer = currentPointer + currentOperation.chars;      
+      
+      if (currentPointer > column) {
+        // we got the operation of the wanted position, now collect all its attributes
+        Changeset.eachAttribNumber(currentOperation.attribs, function (n) {
+          attributes.push([
+            this.rep.apool.getAttribKey(n),
+            this.rep.apool.getAttribValue(n)
+          ]);
+        }.bind(this));
+        
+        // skip the loop
+        return attributes;
+      }
+    }
+    return attributes;
+    
+  },
+  
+  /*
+    Gets all attributes at caret position
+  */
+  getAttributesOnCaret: function(){
+    return this.getAttributesOnPosition(this.rep.selStart[0], this.rep.selStart[1]);
+  },
+  
   /*
     Sets a specified attribute on a line
     @param lineNum: the number of the line to set the attribute for

From fbcbc3c8a2ffef1628ac13a80c21573e61455723 Mon Sep 17 00:00:00 2001
From: Thomas Muehlichen <ext_github_tm@linkwerk.com>
Date: Wed, 25 Mar 2015 13:29:03 +0100
Subject: [PATCH 2/3] feature #2558 more precise documentation

---
 src/static/js/AttributeManager.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/static/js/AttributeManager.js b/src/static/js/AttributeManager.js
index d2ec324b..b822caee 100644
--- a/src/static/js/AttributeManager.js
+++ b/src/static/js/AttributeManager.js
@@ -166,7 +166,8 @@ AttributeManager.prototype = _(AttributeManager.prototype).extend({
   },
   
   /*
-    Gets all attributes at caret position
+    Gets all attributes at caret position 
+    if the user selected a range, the start of the selection is taken
   */
   getAttributesOnCaret: function(){
     return this.getAttributesOnPosition(this.rep.selStart[0], this.rep.selStart[1]);

From a930161cb9aba6524ffa344863e44e83cc578b6d Mon Sep 17 00:00:00 2001
From: Thomas Muehlichen <ext_github_tm@linkwerk.com>
Date: Tue, 31 Mar 2015 10:58:47 +0200
Subject: [PATCH 3/3] feature #2558 added documentation

---
 src/static/js/AttributeManager.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/static/js/AttributeManager.js b/src/static/js/AttributeManager.js
index b822caee..1d1c4a91 100644
--- a/src/static/js/AttributeManager.js
+++ b/src/static/js/AttributeManager.js
@@ -168,6 +168,8 @@ AttributeManager.prototype = _(AttributeManager.prototype).extend({
   /*
     Gets all attributes at caret position 
     if the user selected a range, the start of the selection is taken
+    returns a list of attributes in the format 
+    [ ["key","value"], ["key","value"], ...  ]
   */
   getAttributesOnCaret: function(){
     return this.getAttributesOnPosition(this.rep.selStart[0], this.rep.selStart[1]);