From ece288b0c72e14196c3c8af3f212217c742f04bc Mon Sep 17 00:00:00 2001
From: Fabian Jakobs <fabian.jakobs@web.de>
Date: Tue, 21 Dec 2010 16:34:52 +0100
Subject: [PATCH] add multi row document operations n preparation for
 rectangular selections

---
 lib/ace/document.js           | 61 +++++++++++++++++++++++++++++++-
 lib/ace/test/document_test.js | 66 +++++++++++++++++++++++++++++++++++
 2 files changed, 126 insertions(+), 1 deletion(-)

diff --git a/lib/ace/document.js b/lib/ace/document.js
index dc2389fb..e60dbbd7 100644
--- a/lib/ace/document.js
+++ b/lib/ace/document.js
@@ -107,7 +107,6 @@ var Document = function(text, mode) {
         }
 
         if (undoManager) {
-            //undoManager.setDocument(this);
             var self = this;
             this.$informUndoManager = lang.deferredCall(function() {
                 if (self.$deltas.length > 0)
@@ -456,6 +455,45 @@ var Document = function(text, mode) {
                 : undefined);
         return end;
     };
+    
+    /**
+     * @param rows Array[Integer] sorted list of rows
+     */
+    this.multiRowInsert = function(rows, column, text) {
+        var lines = this.lines;
+        
+        for (var i=rows.length-1; i>=0; i--) {
+            var row = rows[i];
+            if (row >= lines.length)
+                continue;
+                
+            var diff = column - lines[row].length;
+            if ( diff > 0) {
+                var padded = lang.stringRepeat(" ", diff) + text;
+                var offset = -diff;
+            }
+            else {
+                padded = text;
+                offset = 0;
+            }
+                
+            var end = this.$insert({row: row, column: column+offset}, padded, false);
+        }
+        
+        if (end) {
+            this.fireChangeEvent(rows[0], rows[rows.length-1] + end.row - rows[0]);
+            return {
+                rows: end.row - rows[0],
+                columns: end.column - column
+            }
+        }
+        else {
+            return {
+                rows: 0,
+                columns: 0
+            }
+        }
+    };
 
     this.$insertLines = function(row, lines, fromUndo) {
         if (lines.length == 0)
@@ -552,6 +590,27 @@ var Document = function(text, mode) {
         return range.start;
     };
 
+    this.multiRowRemove = function(rows, range) {
+        if (range.start.row !== rows[0])
+            throw new TypeError("range must start in the first row!");
+            
+        var height = range.end.row - rows[0];
+        for (var i=rows.length-1; i>=0; i--) {
+            var row = rows[i];
+            if (row >= this.lines.length)
+                continue;
+                
+            var end = this.$remove(new Range(row, range.start.column, row+height, range.end.column), false);
+        }
+        
+        if (end) {
+            if (height < 0)
+                this.fireChangeEvent(rows[0]+height, undefined);
+            else
+                this.fireChangeEvent(rows[0], height == 0 ? rows[rows.length-1] : undefined);
+        }
+    };
+    
     this.$remove = function(range, fromUndo) {
         if (range.isEmpty())
             return;
diff --git a/lib/ace/test/document_test.js b/lib/ace/test/document_test.js
index 253ecbb8..c3bc3958 100644
--- a/lib/ace/test/document_test.js
+++ b/lib/ace/test/document_test.js
@@ -217,6 +217,72 @@ var Test = {
         assert.equal(doc.screenToDocumentColumn(0, 9), 6);
         assert.equal(doc.screenToDocumentColumn(0, 15), 12);
         assert.equal(doc.screenToDocumentColumn(0, 19), 13);
+    },
+    
+    "test: insert text in multiple rows": function() {
+        var doc = new Document(["12", "", "abcd"]);
+        
+        var inserted = doc.multiRowInsert([0, 1, 2], 2, "juhu 1");
+        assert.equal(inserted.rows, 0);
+        assert.equal(inserted.columns, 6);
+        
+        assert.equal(doc.toString(), ["12juhu 1", "  juhu 1", "abjuhu 1cd"].join("\n"));
+    },
+
+    "test: undo insert text in multiple rows": function() {
+        var doc = new Document(["12", "", "abcd"]);
+        
+        var undoManager = new UndoManager();
+        doc.setUndoManager(undoManager);
+        
+        doc.multiRowInsert([0, 1, 2], 2, "juhu 1");
+        doc.$informUndoManager.call();
+        assert.equal(doc.toString(), ["12juhu 1", "  juhu 1", "abjuhu 1cd"].join("\n"));
+
+        undoManager.undo();
+        assert.equal(doc.toString(), ["12", "", "abcd"].join("\n"));
+ 
+        undoManager.redo();
+        assert.equal(doc.toString(), ["12juhu 1", "  juhu 1", "abjuhu 1cd"].join("\n"));
+    },
+    
+    "test: insert new line in multiple rows": function() {
+        var doc = new Document(["12", "", "abcd"]);
+        
+        var inserted = doc.multiRowInsert([0, 1, 2], 2, "\n");
+        assert.equal(inserted.rows, 1);
+        assert.equal(doc.toString(), ["12\n", "  \n", "ab\ncd"].join("\n"));
+    },
+    
+    "test: insert multi line text in multiple rows": function() {
+        var doc = new Document(["12", "", "abcd"]);
+        
+        var inserted = doc.multiRowInsert([0, 1, 2], 2, "juhu\n12");
+        assert.equal(inserted.rows, 1);
+        assert.equal(doc.toString(), ["12juhu\n12", "  juhu\n12", "abjuhu\n12cd"].join("\n"));
+    },
+    
+    "test: remove right in multiple rows" : function() {
+        var doc = new Document(["12", "", "abcd"]);
+
+        doc.multiRowRemove([0, 1, 2], new Range(0, 2, 0, 3));
+        assert.equal(doc.toString(), ["12", "", "abd"].join("\n"));
+    },
+    
+    "test: undo remove right in multiple rows" : function() {
+        var doc = new Document(["12", "", "abcd"]);
+        var undoManager = new UndoManager();
+        doc.setUndoManager(undoManager);
+
+        doc.multiRowRemove([0, 1, 2], new Range(0, 1, 0, 3));
+        doc.$informUndoManager.call();
+        assert.equal(doc.toString(), ["1", "", "ad"].join("\n"));
+        
+        undoManager.undo();
+        assert.equal(doc.toString(), ["12", "", "abcd"].join("\n"));
+        
+        undoManager.redo();
+        assert.equal(doc.toString(), ["1", "", "ad"].join("\n"));
     }
 };