From 8f8410f01b650cd7747fab1e3a3321d52a084967 Mon Sep 17 00:00:00 2001
From: AMiniLegend <kcreigh7@gmail.com>
Date: Sun, 18 May 2014 13:51:46 -0400
Subject: [PATCH] Added three new functions for selections: expandtoline    -
 selects the entire line for each line in a selection (newline included)
 joinSelection   - joins selected lines into a single space-delimited line
 invertSelection - inverts all selected lines

---
 lib/ace/commands/default_commands.js | 87 ++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)

diff --git a/lib/ace/commands/default_commands.js b/lib/ace/commands/default_commands.js
index 108c7efb..c2f27c05 100644
--- a/lib/ace/commands/default_commands.js
+++ b/lib/ace/commands/default_commands.js
@@ -33,6 +33,7 @@ define(function(require, exports, module) {
 
 var lang = require("../lib/lang");
 var config = require("../config");
+var Range = require("../range").Range;
 
 function bindKey(win, mac) {
     return {win: win, mac: mac};
@@ -602,6 +603,92 @@ exports.commands = [{
     exec: function(editor) { editor.toLowerCase(); },
     multiSelectAction: "forEach",
     scrollIntoView: "cursor"
+}, {
+    name: "expandtoline",
+    bindKey: bindKey("Ctrl-Shift-L", "Command-Shift-L"),
+    exec: function(editor) { 
+        var isBackwards = editor.selection.isBackwards();
+        var selectionStart = isBackwards ? editor.selection.getSelectionLead() : editor.selection.getSelectionAnchor();
+        var selectionEnd = isBackwards ? editor.selection.getSelectionAnchor() : editor.selection.getSelectionLead();
+        
+        editor.clearSelection();
+        
+        editor.selection.moveCursorTo(selectionStart.row, 0);
+        editor.selection.selectTo(selectionEnd.row + 1, 0);
+    },
+    multiSelectAction: "forEach",
+    scrollIntoView: "cursor"
+}, {
+    name: "joinSelection",
+    bindKey: bindKey(null, null),
+    exec: function(editor) { 
+        var isBackwards = editor.selection.isBackwards();
+        var selectionStart = isBackwards ? editor.selection.getSelectionLead() : editor.selection.getSelectionAnchor();
+        var selectionEnd = isBackwards ? editor.selection.getSelectionAnchor() : editor.selection.getSelectionLead();
+        var selectedRange = editor.selection.getRange();
+        var selectedText = editor.session.doc.getTextRange(selectedRange);
+        var newLine = editor.session.doc.getLine(selectionStart.row) + " ";
+
+        for (var i = selectionStart.row + 1; i <= selectionEnd.row; i++) {
+            var curLine = editor.session.doc.getLine(i);
+            newLine += lang.stringTrimLeft(lang.stringTrimRight(curLine)) + " ";
+        };
+
+        newLine += editor.session.doc.getNewLineCharacter();
+        editor.clearSelection();
+        editor.selection.moveCursorTo(selectionStart.row, 0);
+        editor.selection.selectTo(selectionEnd.row + 1, 0);
+        selectedRange = editor.selection.getRange();
+        editor.session.doc.replace(selectedRange, newLine);
+    },
+    multiSelectAction: "forEach"
+}, {
+    name: "invertSelection",
+    bindKey: bindKey(null, null),
+    exec: function(editor) { 
+        var endRow = editor.session.doc.getLength() - 1;
+        var endCol = editor.session.doc.getLine(endRow).length;
+        var initialScroll = editor.session.getScrollTop();
+        var ranges = editor.selection.rangeList.ranges;
+        var newRanges = [];
+        var tmpRanges = ranges;
+
+        // If multiple selections don't exist, rangeList will return 0 so replace with single range
+        if (ranges.length < 1) {
+            ranges = [editor.selection.getRange()];
+        }
+
+        for (var i = 0; i < ranges.length; i++) {
+            if (i == (ranges.length - 1)) {
+                // The last selection must connect to the end of the document, unless it already does
+                if (!(ranges[i].end.row === endRow && ranges[i].end.column === endCol)) {
+                    newRanges.push(new Range(ranges[i].end.row, ranges[i].end.column, endRow, endCol));
+                }
+            }
+
+            if (i === 0) {
+                // The first selection must connect to the start of the document, unless it already does
+                if (!(ranges[i].start.row === 0 && ranges[i].start.column === 0)) {
+                    newRanges.push(new Range(0, 0, ranges[i].start.row, ranges[i].start.column));
+                }
+            } else {
+                newRanges.push(new Range(ranges[i-1].end.row, ranges[i-1].end.column, ranges[i].start.row, ranges[i].start.column));
+            }
+        }
+        
+        editor.exitMultiSelectMode();
+        editor.clearSelection();
+
+        // Set the main cursor to the last range that will be seen
+        editor.selection.moveCursorTo(newRanges[newRanges.length-1].end.row, newRanges[newRanges.length-1].end.column, false);
+        
+        for(var i = 0; i < newRanges.length; i++) {
+            editor.selection.addRange(newRanges[i], false);
+        }
+        
+        // Make it so the user sees no change in scrolling
+        editor.session.setScrollTop(initialScroll);
+    }
 }];
 
 });