url-clicking fix by @brollb, morphic documentation update

HISTORY.md

@@ -1,6 +1,6 @@
 # Snap! (BYOB) History
 
-## in development:
+## v5.2.0 in development:
 * **New Features:**
     * new media creation primitives:
     * new primitive in "looks": NEW COSTUME from a list of pixels and dimensions, allowing CURRENT
@@ -13,10 +13,14 @@
 * **Notable Fixes:**
     * loading a project that fires STOP ALL from a WHEN hat block no longer "hangs" Snap
     * assert that dimensions given for STRETCH are finite numbers (avoid crash)
+    * fixed occasional "dead clicks" on buttons and menu items
 * **Translation Updates:**
     * English
     * German
 
+### 2019-10-22
+* morphic: url-clicking fix by @brollb, updated morphic documentation
+
 ### 2019-10-21
 * blocks, threads: new experimental entry for "green flag pressed" in the BROADCAST block's dropdown when the shift key is pressed
 * updated English and German translations for `__shout__go__`

snap.html

@@ -4,7 +4,7 @@
         <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
         <title>Snap! Build Your Own Blocks 5.2 - dev -</title>
         <link rel="shortcut icon" href="src/favicon.ico">
-        <script type="text/javascript" src="src/morphic.js?version=2019-10-16"></script>
+        <script type="text/javascript" src="src/morphic.js?version=2019-10-22"></script>
         <script type="text/javascript" src="src/widgets.js?version=2019-10-16"></script>
         <script type="text/javascript" src="src/blocks.js?version=2019-10-21"></script>
         <script type="text/javascript" src="src/threads.js?version=2019-10-21"></script>

src/morphic.js

@@ -1169,6 +1169,7 @@
     Michael Ball found and fixed a longstanding scrolling bug.
     Brian Harvey contributed to the design and implementation of submenus.
     Ken Kahn contributed to Chinese keboard entry and Android support.
+    Brian Broll contributed clickable URLs in text elements.
 
     - Jens Mönig
 */
@@ -1177,7 +1178,7 @@
 
 /*global window, HTMLCanvasElement, FileReader, Audio, FileList, Map*/
 
-var morphicVersion = '2019-October-16';
+var morphicVersion = '2019-October-22';
 var modules = {}; // keep track of additional loaded modules
 var useBlurredShadows = getBlurredShadowSupport(); // check for Chrome-bug
 
@@ -9612,6 +9613,7 @@ TextMorph.prototype.slotAt = function (aPoint) {
     var charX,
         row = 0,
         col = 0,
+        columnLength,
         shadowHeight = Math.abs(this.shadowOffset.y),
         context = this.image.getContext('2d'),
         textWidth;
@@ -9630,7 +9632,8 @@ TextMorph.prototype.slotAt = function (aPoint) {
     } else { // 'left'
         charX = 0;
     }
-    while (aPoint.x - this.left() > charX) {
+    columnLength = this.lines[row - 1].length;
+    while (col < columnLength - 2 && aPoint.x - this.left() > charX) {
         charX += context.measureText(this.lines[row - 1][col]).width;
         col += 1;
     }

src/morphic.txt

@@ -1,3 +1,4 @@
+
     morphic.js
 
     a lively Web-GUI
@@ -8,7 +9,7 @@
 
     Copyright (C) 2019 by Jens Mönig
 
-    this documentation last changed: January 1, 2019
+    this documentation last changed: October 22, 2019
 
     This file is part of Snap!.
 
@@ -654,7 +655,7 @@
     Those are dispatched as
 
         droppedAudio(anAudio, name)
-        droppedText(aString, name)
+        droppedText(aString, name, type)
 
     events to interested Morphs at the mouse pointer.
 
@@ -760,13 +761,24 @@
     events:
 
     Whenever the user presses a key on the keyboard while a text element
-    is being edited, a
+    is being edited, first a
 
         reactToKeystroke(event)
 
     is escalated up its parent chain, the "event" parameter being the
     original one received by the World.
 
+    Whenever the input changes, by adding or removing one or more characters,
+    an additional
+
+        reactToInput(event)
+
+    is escalated up its parent chain, the "event" parameter again being the
+    original one received by the World or by the IME element.
+
+    Note that the "reactToKeystroke" event gets triggered before the input
+    changes, and thus befgore the "reactToInput" event fires.
+
     Once the user has completed the edit, the following events are
     dispatched:
 
@@ -1042,7 +1054,7 @@
     canvasses for simple shapes in order to save system resources and
     optimize performance. Examples are costumes and backgrounds in Snap.
     In Morphic you can create new canvas elements using
-    
+
         newCanvas(extentPoint [, nonRetinaFlag])
 
     If retina support is enabled such new canvasses will automatically be
@@ -1083,12 +1095,12 @@
     stepping mechanism.
 
     For an example how to use animations look at how the Morph's methods
-    
+
         glideTo()
         fadeTo()
 
     and
-    
+
         slideBackTo()
 
     are implemented.
@@ -1153,6 +1165,11 @@
     Davide Della Casa contributed performance optimizations for Firefox.
     Jason N (@cyderize) contributed native copy & paste for text editing.
     Bartosz Leper contributed retina display support.
+    Zhenlei Jia and Dariusz Dorożalski pioneered IME text editing.
+    Bernat Romagosa contributed to text editing and to the core design.
+    Michael Ball found and fixed a longstanding scrolling bug.
     Brian Harvey contributed to the design and implementation of submenus.
+    Ken Kahn contributed to Chinese keboard entry and Android support.
+    Brian Broll contributed clickable URLs in text elements.
 
     - Jens Mönig