WIP for keyboard-layout-editor: Added prefix count for motion and size operations.

gistfile1.diff

From aab2d58869a1b4b05a107a1e611d0e131045a3b3 Mon Sep 17 00:00:00 2001
From: Kevin Schoedel <kps@datatravelandexperiments.com>
Date: Thu, 19 Dec 2013 11:00:44 -0500
Subject: [PATCH] Added prefix count for motion and size operations.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The user can type a number and optional unit that will be used as
a value by certain following commands.

  0 - 9 .     - value
  u           - standard key size (1u = ¾″)
  i           - inches
  m           - millimetres (doubling this as ‘mm’ is also accepted)
  ,           - retrieve previous value

For the movement and size commands (←↓↑→ and shifted ←↓↑→), a value
without a unit is interpreted as a number of ¼u steps; that is, like
a repeat count of the operation. For instance, “2→” moves the selected
keys 2 steps to the right (one half unit), while “2u→” moves the keys
two units to the right.

Additional shortcuts:

  x           - set the selected key(s) X position
  y           - set the selected key(s) Y position
  w           - set the selected key(s) width
  h           - set the selected key(s) height

For these shortcuts, a value without a unit is taken to be in key sizes,
(same as entered in the input box); so “2w” and “2uw” and “1.5iw” all
set the selected keys to be 1.5 inches wide.

Commands that use the count reset it; for example “2→↑” moves the key
two steps to the right and one step up. The comma “,” shortcut retrieves
the last used count; for example “2→,↑” moves the key two steps right
and two steps up.

TO DO:
- display the current count somewhere! (and indicate whether it is valid)
- backspace to edit the count
- accept EE-style embedded units, e.g. “2u5” = “2.5u”
- more shortcuts, e.g. shift-W for secondary width
---
 kb.html |  39 +++++++++++++++++-------
 kb.js   | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 132 insertions(+), 10 deletions(-)

diff --git a/kb.html b/kb.html
index 917fd7d..25eacfa 100644
--- a/kb.html
+++ b/kb.html
@@ -102,14 +102,14 @@ All rights reserved.
 	<div id="keyboard" 
 		 tabindex="0" 
 		 ng-style="{height: kbHeight + 'px', 'background-color': keyboard.meta.backcolor}" 
-		 ui-keydown="{ left:'moveKeys(-.25,0,$event)', 
-					 right:'moveKeys(.25,0,$event)', 
-					 up:'moveKeys(0,-.25,$event)', 
-					 down:'moveKeys(0,.25,$event)', 
-					 'shift-left':'sizeKeys(-.25,0,$event)',
-					 'shift-right':'sizeKeys(.25,0,$event)',
-					 'shift-up':'sizeKeys(0,-.25,$event)',
-					 'shift-down':'sizeKeys(0,.25,$event)',
+		 ui-keydown="{ left:'moveKeys(-1,0,$event)', 
+					 right:'moveKeys(1,0,$event)', 
+					 up:'moveKeys(0,-1,$event)', 
+					 down:'moveKeys(0,1,$event)', 
+					 'shift-left':'sizeKeys(-1,0,$event)',
+					 'shift-right':'sizeKeys(1,0,$event)',
+					 'shift-up':'sizeKeys(0,-1,$event)',
+					 'shift-down':'sizeKeys(0,1,$event)',
 					 'pageup':'rotateKeys(-15,$event)',
 					 'pagedown':'rotateKeys(15,$event)',
 					 'ctrl-left':'moveCenterKeys(-.25,0,$event)', 
@@ -118,11 +118,30 @@ All rights reserved.
 					 'ctrl-down':'moveCenterKeys(0,.25,$event)', 
 					 delete:'deleteKeys()', 
 					 insert:'addKey()',
+					 48: 'updateCount(\'0\',$event)',
+					 49: 'updateCount(\'1\',$event)',
+					 50: 'updateCount(\'2\',$event)',
+					 51: 'updateCount(\'3\',$event)',
+					 52: 'updateCount(\'4\',$event)',
+					 53: 'updateCount(\'5\',$event)',
+					 54: 'updateCount(\'6\',$event)',
+					 55: 'updateCount(\'7\',$event)',
+					 56: 'updateCount(\'8\',$event)',
+					 57: 'updateCount(\'9\',$event)',
+					 72: 'updatePropFromCount(\'size\',\'height\',$event)',
+					 73: 'updateCount(\'i\',$event)',
 					 74: 'prevKey($event)', 
 					 75: 'nextKey($event)',
+					 77: 'updateCount(\'m\',$event)',
+					 85: 'updateCount(\'u\',$event)',
+					 87: 'updatePropFromCount(\'size\',\'width\',$event)',
+					 88: 'updatePropFromCount(\'move\',\'x\',$event)',
+					 89: 'updatePropFromCount(\'move\',\'y\',$event)',
+					 113: 'focusEditor()',
+					 188: 'restoreCount($event)',
+					 190: 'updateCount(\'.\',$event)',
 					 'shift-74': 'prevKey($event)', 
 					 'shift-75': 'nextKey($event)',
-					 113: 'focusEditor()',
 					 esc: 'unselectAll()',
 					 'ctrl-65': 'selectAll($event)',
 					 'ctrl-67 ctrl-45': 'copy($event)',
@@ -416,4 +435,4 @@ All rights reserved.
 	</div>
 </div>
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/kb.js b/kb.js
index 5366568..fb49097 100644
--- a/kb.js
+++ b/kb.js
@@ -39,6 +39,7 @@
 		$scope.unselectAll = function() {
 			$scope.selectedKeys = [];
 			$scope.multi = {};
+			$scope.clearCount();
 		};
 		$scope.selectAll = function(event) {
 			if(event) { event.preventDefault(); }
@@ -405,6 +406,12 @@
 				return; 
 			}
 
+			if (x) {
+				x = $scope.consumeCount(x, 'q');
+			} else {
+				y = $scope.consumeCount(y, 'q');
+			}
+
 			if(x<0 || y<0) {
 				var canMoveKeys = true;
 				$scope.selectedKeys.forEach(function(selectedKey) {
@@ -436,6 +443,13 @@
 			if($scope.selectedKeys.length<1) { 
 				return; 
 			}
+
+			if (x) {
+				x = $scope.consumeCount(x, 'q');
+			} else {
+				y = $scope.consumeCount(y, 'q');
+			}
+
 			transaction("size", function() {
 				$scope.selectedKeys.forEach(function(selectedKey) {
 					update(selectedKey, 'width', Math.max(1,selectedKey.width + x));
@@ -854,6 +868,95 @@
 
 		$scope.keyboardTop = function() { var kbElem = $("#keyboard"); return kbElem.position().top + parseInt(kbElem.css('margin-top'),10); };
 		$scope.keyboardLeft = function() { var kbElem = $("#keyboard"); return kbElem.position().left + parseInt(kbElem.css('margin-left'),10); };
+
+		// Count operand
+		$scope.count = '';
+		$scope.countSave = '';
+		$scope.clearCount = function() {
+			if ($scope.count != '') {
+				$scope.countSave = $scope.count;
+				$scope.count = '';
+			}
+		}
+		$scope.restoreCount = function(event) {
+			if (event) {
+				event.preventDefault();
+			}
+			if ($scope.countSave != '') {
+				if ($scope.count != '') {
+					var t = $scope.count;
+					$scope.count = $scope.countSave;
+					$scope.countSave = t;
+				} else {
+					$scope.count = $scope.countSave;
+				}
+			}
+		}
+		$scope.updateCount = function(c, event) {
+			if (event) {
+				event.preventDefault();
+			}
+			$scope.count += c;
+		}
+		$scope.consumeCount = function(scale, defaultUnit) {
+			var r = scale * $scope.parseCount($scope.count, defaultUnit);
+			$scope.clearCount();
+			return r;
+		}
+		$scope.parseCount = function(s, defaultUnit) {
+			var n = 1;
+			var u = defaultUnit;
+			if (s != '') {
+				var a = s.match(/^(\d*\.?\d*)(\D*)$/);
+				if (a[1] != '') {
+					n = parseFloat(a[1]);
+				}
+				if (a[2] != '') {
+					u = a[2];
+				}
+			}
+			switch (u) {
+				case 'u':
+					break;
+				case 'q':
+					n *= 0.25;
+					break;
+				case 'i':
+					n = n * 4 / 3;
+					break;
+				case 'm':
+				case 'mm':
+					n = n * 4 / 76.2;
+					break;
+				default:
+					n = null;
+					break;
+			}
+			return n;
+		}
+
+		$scope.updatePropFromCount = function(type, prop, event) {
+			if (event) {
+				event.preventDefault();
+			}
+			if ($scope.selectedKeys.length<1) {
+				return; 
+			}
+			if ($scope.count == '') {
+				// TODO: move to property input?
+				return;
+			}
+			var v = $scope.consumeCount(1, 'u');
+
+			transaction(type, function() {
+				$scope.selectedKeys.forEach(function(selectedKey) {
+					update(selectedKey, prop, v);
+					renderKey(selectedKey);
+				});
+				$scope.multi = angular.copy($scope.selectedKeys.last());
+			});
+		}
+
 	}]);
 	
 	// Modernizr-inspired check to see if "color" input fields are supported; 
-- 
1.8.4.3