Updated with test cases and better browser support

10 files changed, 340 insertions, 399 deletions

diff --git a/LICENSE b/LICENSE
index bc761e0..7f6deea 100644
--- a/LICENSE
+++ b/LICENSE
@@ -2,12 +2,12 @@ MIT License
 
 Copyright (c) 2017 Matthew S
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
 
 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.
diff --git a/README.md b/README.md
index 81a8eff..b723fd6 100644
--- a/README.md
+++ b/README.md
@@ -4,19 +4,50 @@ A library for rich Google Docs extensions that can integrate with its editor.
 [Skip to the Quickstart](#quickstart)
 
 # History
-Docs+ was originally built for [Action](https://meetaction.com/), an add-on that simplifies action item tracking during Google Docs meetings, about two years ago with [@adhivd](https://github.com/adhivd) and [@wwilliamsshan](https://github.com/wwilliamsshan). Development on Action has sort of died down into a long-term support mode now, and I realized that (as far as I can tell) there isn't another good Docs-integration library, so I figured someone else might find use in this part of the Action code.
+Docs+ was originally built for
+[Action](https://web.archive.org/web/20170521022925/https://meetaction.com/),
+an add-on that simplified action item tracking during Google Docs meetings,
+about two years ago with [@adhivd](https://github.com/adhivd) and
+[@wwilliamsshan](https://github.com/wwilliamsshan). Action no longer exists,
+and I realize that (as far as I can tell) there isn't another good
+Docs-integration library, so I figured someone else might find use in this part
+of the Action code.
 
 # License
-All code in this repository (other than the files in the ``reference`` folder) is licensed under the MIT license.
+All code in this repository is licensed under the MIT license.
 
-If you're having trouble using any of the code (or doing anything with Docs, particularly something [Action](https://meetaction.com/) already does) feel free to reach out! I went through a lot of trial and error with Action and might be able to point you in the right direction.
+If you're having trouble using any of the code (or doing anything with Docs,
+particularly something Action used to do) feel free to reach out! I went
+through a lot of trial and error with Action and might be able to point you in
+the right direction.
 
 # Demos/examples
-- [Action](https://meetaction.com/) was the origin of Docs+. It allows users to easily add action items to a shared 'follow-up list' that gets sent to all attendees by email after the meeting. It is deeply integrated with the editor, and does a great job of showing off what Docs-integrated extensions are capable of.
-- [Speechless](https://github.com/matthewsot/speechless) uses the Docs+ library to predict time-to-speak for a user's selected text. This could be useful, for example, when writing a time-limited speech or presentation.
+- A test add-on ([manifest.json](manifest.json) and [test.js](test.js)) is
+  included in this repository that acts as a set of usage examples and test
+  cases for Docs+. Once loaded as a library in Chrome or Firefox, you can start
+  the test by opening a Google Doc and typing ``alt+r``.
+- Action was the origin of Docs+. It allows users to easily add action items to
+  a shared 'follow-up list' that gets sent to all attendees by email after the
+  meeting. It is deeply integrated with the editor, and does a great job of
+  showing off what Docs-integrated extensions are capable of.
+- [Speechless](https://github.com/matthewsot/speechless) uses the Docs+ library
+  to predict time-to-speak for a user's selected text. This could be useful,
+  for example, when writing a time-limited speech or presentation.
+- [Docs-Vim](https://github.com/matthewsot/docs-vim) uses the Docs+ library to
+  add a basic set of Vim keybindings to Google Docs.
+
+# Quickstart
+The test add-on can act as a template for using Docs+. Clone this repository,
+then modify [manifest.json](manifest.json) and [test.js](test.js) to build your
+add-on!
+
+# Browser Support
+Docs+ should support modern versions of Firefox and Chrome. Tested in Firefox
+68.0.1 and Chrome 76.0.3809.100.
 
 # Screenshots
-Docs+ allows you to interact with the user's text in the Google Docs Kix editor. A few screenshots of extensions using Docs+:
+Docs+ allows you to interact with the user's text in the Google Docs Kix
+editor. A few screenshots of extensions using Docs+:
 
 Rich interactions with the editor:
 
@@ -33,139 +64,3 @@ Using the user's selected text:
 Interacting with Docs menus:
 
 ![Interact with Docs menus](screenshots/rightclick.jpg)
-
-# Quickstart
-First, include ``jQuery``, ``utils.js``, and ``docs.js`` in your project (ideally in that order). If you'd like to use the real-time editor helper functions, also include ``editor-input.js``. Then, start using the Docs+ library!
-
-If you are using Docs+ as a Greasemonkey userscript, you may run into problems using text insertion functions. If so, please change the ``docs.platform`` value to ``"userscript"`` to solve these issues.
-
-### Document information
-You can access the document name and Drive ID like so:
-```javascript
-var docId = docs.id;
-var docName = docs.name;
-```
-
-### Getting selected text
-To get the user's currently selected text, use ``docs.getSelection``
-
-```javascript
-docs.getSelection(function (selection) {
-    alert("You selected: " + selection);
-});
-```
-
-If you'd like to default to returning the current text paragraph if there is no currently selected text, you can pass a parameter to the ``getSelection`` function:
-
-```javascript
-docs.getSelection(function (selection) {
-    alert("You selected (or your insertion point is on): " + selection);
-}, true);
-```
-
-If you run into issues with multi-line text (or text spanning across multiple bullet points), you can get the raw text selection element by passing a second 'true' parameter.
-
-The following code calculates the time it would take to speak the currently selected text (see [speechless](https://github.com/matthewsot/speechless) for a full demo):
-
-```javascript
-docs.getSelection(function (textEl) {
-    var text = "";
-    $(textEl).children().each(function () {
-        text = text.trim() + " " + $(this).text().trim();
-    });
-    text = text.trim().replace("\n", " ");
-
-    var words = text.split(' ').length;
-    var minutes = words / wordsPerMinute;
-    var seconds = Math.round((minutes - Math.floor(minutes)) * 60);
-    if (seconds.toString().length === 1) {
-        seconds = "0" + seconds.toString();
-    } else if (seconds.toString().length === 0) {
-        seconds = "00";
-    }
-
-    var time = Math.floor(minutes) + ":" + seconds;
-
-    $("#docs-notice").text(words + " words, " + time);
-}, true, true);
-```
-
-### Inserting text
-You can insert text at the current text insertion point using the ``docs.insertText(text)`` function.
-
-```javascript
-docs.insertText("Hello, World!");
-```
-
-### Other methods
-There are numerous other methods in ``docs.js`` that you can use to interact with the editor:
-* ``docs.getSelectionEl`` will return the raw selection highlight element from Docs
-* ``docs.hasSelection`` will return whether the user has currently selected any text in Docs
-* ``docs.backspace`` will delete the character directly before the user's insertion point
-* ``docs.setColor`` will set the current text color. If I remember correctly, you should call it using ``docs.colors`` like so:
-```javascript
-docs.setColor($(docs.colors["gray"]));
-```
-* ``docs.toggleSubscript`` will toggle whether the text should be subscripted or not
-* ``docs.getCurrentParagraphText(callback)`` will get the text of the paragraph which the user's insertion point is on
-* ``docs.getUserCursor`` will return the raw element of the user's text insertion point
-
-### Handling real-time editor input
-``editor-input.js`` includes a number of helper functions to handle real-time editor input.
-
-You can set up a handler for every time the user presses down a key in the editor:
-```javascript
-docs.keyboard.handleKeydown = function (e) {
-    var chr = e.key; //"a", "b", etc.
-}
-```
-
-Or, block mouse or keyboard inputs temporarily:
-```javascript
-docs.keyboard.startBlockingMouse();
-docs.keyboard.startBlockingKeyboard();
-
-docs.keyboard.stopBlockingMouse();
-docs.keyboard.stopBlockingKeyboard();
-```
-
-This can be useful when using in-text selectors that need to appear under the user's cursor, and you do not want to re-place those selectors when the user navigates to a different part of the document.
-
-### Handling mouse events
-There are currently no helpers for mouse events in Docs+, but you should hook into ``mouseup`` on ``.kix-appview-editor`` if you want to handle them. See the [speechless demo](https://github.com/matthewsot/speechless) for an example of this:
-
-```javascript
-$("body").on("mouseup", ".kix-appview-editor", function (e) {
-    //Handle click
-});
-```
-
-### Adding a "Docs Button"
-Again, Docs+ currently does not provide helpers for adding a button the the Docs header (near "Comment" and "Share"), but here's some code to start with if you'd like to do that:
-
-```javascript
-$(".docs-titlebar-buttons").prepend(
-    $("<div></div>", {"class": "custom-button"}).text("Custom Button"));
-```
-
-```css
-.custom-button {
-    z-index: 1;
-    position: relative;
-    float: left;
-    padding: 0 15px;
-    height: 29px;
-    line-height: 29px;
-    box-sizing: border-box;
-    border-radius: 2px;
-    background-color: #999;
-    cursor: default;
-}
-```
-
-# Other capabilities
-There is a lot of integration code scattered throughout the Action extension codebase, and Docs+ really only includes the most common/basic/useful parts. If you are interested in code to do any of the below, please get in contact with me or file an issue on this repository and I'll see if I can pull the code into Docs+:
-
-* Accessing the list of users shared on the current document (including emails and names)
-* Right-click menus
-* Tag watching (watch a certain block of text in the document for changes)
diff --git a/docs.js b/docs.js
index 4f12af2..0927a50 100644
--- a/docs.js
+++ b/docs.js
@@ -1,11 +1,164 @@
-var docs = docs || { // TODO: cleanup the duplication here + in utils.js
+var docs = docs || {
+    // The document's unique ID that appears in the address bar.
     id: window.location.href.split("/document/d/")[1].split("/")[0],
+    // The document's user-specified name (may change over time).
     get name() {
         return $(".docs-title-input-label-inner").text().trim();
     },
-    platform: "chrome" //chrome, firefox, userscript
 };
 
+/*********** UTILITIES ***********/
+// Helper method to observe changes to a DOM element. Used in the getSelection
+// and getCurrentParagraph methods, where we watch the element that Kix puts
+// the selection into when you press ctrl+C.
+docs.observe = function (el, config, callback, observeOnce) {
+    observeOnce = (typeof observeOnce !== "undefined") && observeOnce;
+
+    var observer = new MutationObserver(function(mutations) {
+        if (observeOnce) {
+            observer.disconnect();
+        }
+        
+        callback(mutations);
+    });
+
+    observer.observe(el, config);
+    return observer;
+};
+
+// Helper method to translate keys (including a few special/command keys) to
+// keyCodes for use with docs.pressKey(keyCode, ...).
+docs.codeFromKey = function(key) {
+    var specialKeys = {
+        "/": 191, "Escape": 27, "Shift": 16, "Control": 17, "Alt": 18,
+        "Backspace": 8, " ": 32, "Enter": 13, "Tab": 9, "ArrowLeft": 37,
+        "ArrowUp": 38, "ArrowRight": 39, "ArrowDown": 40, "Delete": 46
+    };
+    if (key in specialKeys) {
+        return specialKeys[key];
+    }
+    return key.charCodeAt(key);
+};
+
+/*********** KEYBOARD INTERACTION ***********/
+// texttarget is the underlying text editor that Docs uses for catching
+// keyboard input, etc.
+docs.texttarget = $(".docs-texteventtarget-iframe").contents();
+docs.texttarget = docs.texttarget.find("[contenteditable=\"true\"]");
+
+// You can catch user input in the editor by setting docs.keydown to be your
+// handler. Key presses generated by Docs+ will be ignored. You should be able
+// to use e.key in all modern browsers.
+docs.keydown_ = function (e) {
+    if (e.docs_plus_ || !docs.keydown) {
+        return;
+    }
+    return docs.keydown(e);
+};
+docs.texttarget.on("keydown", docs.keydown_);
+
+// Simulate a key press.
+docs.pressKey = function (keyCode, ctrlKey, shiftKey) {
+    var el = document.getElementsByClassName("docs-texteventtarget-iframe")[0];
+    el = el.contentDocument;
+
+    var is_command = (keyCode <= 46) || ctrlKey;
+
+    var data = {"keyCode": keyCode, "ctrlKey": ctrlKey, "shiftKey": shiftKey};
+    var key_event;
+    if (is_command) {
+        key_event = new KeyboardEvent("keydown", data);
+    } else {
+        key_event = new KeyboardEvent("keypress", data);
+    }
+    key_event.docs_plus_ = true;
+
+    el.dispatchEvent(key_event);
+};
+
+// Simulates pressing >= 1 *character* keys. Note that this has very limited
+// support, and only really works for letters --- in most cases, you should use
+// docs.pasteText. The imagined use case is to replace the charCodeAt
+// boilerplate in, eg., docs.pressKey("a".charCodeAt(0)).
+docs.pressLetters = function (text, ctrlKey, shiftKey) {
+    for (var i = 0; i < text.length; i++) {
+        docs.pressKey(text.charCodeAt(i), ctrlKey, shiftKey);
+    }
+};
+
+// Helper to simulate pressing the backspace key.
+docs.backspace = function (counts) {
+    docs.pressKey(8);
+};
+
+// Pastes a block of plaintext into the document. Note that spaces before/after
+// @text don't seem to work. Also note that repeated pastes can cause serious
+// problems --- please give each paste a few hunderd milliseconds to finish
+// before sending another pasteText. See test.js for an example of this.
+docs.pasteText = function (text) {
+    var el = document.getElementsByClassName("docs-texteventtarget-iframe")[0];
+    el = el.contentDocument.querySelector("[contenteditable=true]");
+
+    var data = new DataTransfer();
+    data.setData("text/plain", text);
+    var paste = new ClipboardEvent("paste", {
+        "clipboardData": data,
+        "data": text,
+        "dataType": "text/plain"
+    });
+    paste.docs_plus_ = true;
+
+    el.dispatchEvent(paste);
+};
+
+/*********** TEXT FORMATTING ***********/
+docs.colors = {
+    "black": "#docs-material-colorpalette-cell-0 > div:nth-child(1)",
+    "gray": "#docs-material-colorpalette-cell-5 > div:nth-child(1)",
+    "white": "#docs-material-colorpalette-cell-9 > div:nth-child(1)",
+};
+
+// Sets the color of inserted (or selected) text. @color can either be a
+// color-palatte DOM element selector or one of the supported color names in
+// docs.colors.
+docs.setColor = function (color) {
+    if (color in docs.colors) {
+        color = docs.colors[color];
+    }
+    var sel = $("#textColorButton > div:nth-child(1) > div:nth-child(1)")[0];
+    sel.dispatchEvent(new MouseEvent("mousedown", { bubbles: true }));
+
+    var el = $(color)[0];
+    el.dispatchEvent(new MouseEvent("mouseenter", { bubbles: true }));
+    el.dispatchEvent(new MouseEvent("mousedown", { bubbles: true }));
+    el.dispatchEvent(new MouseEvent("mouseup", { bubbles: true }));
+    el.dispatchEvent(new MouseEvent("click", { bubbles: true }));
+    el.dispatchEvent(new MouseEvent("mouseleave", { bubbles: true }));
+};
+
+// Toggles whether inserted (selected) text is superscripted or not. Note that
+// entering newlines, etc. may disrupt this setting. TODO(matthewsot):
+// isSuperscript() method.
+docs.toggleSuperscript = function () {
+    docs.pressKey(190, true, false);
+};
+
+// Toggles whether inserted (selected) text is subscripted or not. Note that
+// entering newlines, etc. may disrupt this setting. TODO(matthewsot):
+// isSubscript() method.
+docs.toggleSubscript = function () {
+    docs.pressKey(188, true, false);
+};
+
+// Toggles whether inserted (selected) text is bolded or not. TODO(matthewsot):
+// isBold() method.
+docs.toggleBold = function () {
+    docs.pressKey(66, true, false);
+};
+
+/*********** USER SELECTIONS ***********/
+// Gets the raw DOM element corresponding to the user's selection, used by
+// docs.hasSelection and docs.getSelection.
 docs.getSelectionEl = function () {
     var selection = null;
     $(".kix-selection-overlay").each(function () {
@@ -21,11 +174,17 @@ docs.getSelectionEl = function () {
     
     return selection;
 };
+
+// True iff the user is selecting some text.
 docs.hasSelection = function () {
     return docs.getSelectionEl() !== null;
 };
 
-docs.getSelectionWithObserver = function (callback, defaultToParagraph, getRaw) {
+// callback(text) is called where text is the contents of the user's selection.
+// If @defaultToParagraph, empty selections are replaced with the paragraph of
+// the user's current selection. getRaw will return the raw HTML selection
+// element instead of processed text.
+docs.getSelection = function (callback, defaultToParagraph, getRaw) {
     defaultToParagraph = typeof defaultToParagraph !== "undefined" && defaultToParagraph;
     getRaw = (typeof getRaw !== "undefined" && getRaw);
 
@@ -40,7 +199,7 @@ docs.getSelectionWithObserver = function (callback, defaultToParagraph, getRaw)
         return;
     }
 
-    docs.utils.observe($(".docs-texteventtarget-iframe").contents().find("[contenteditable=\"true\"]")[0], {
+    docs.observe($(".docs-texteventtarget-iframe").contents().find("[contenteditable=\"true\"]")[0], {
         childList: true
     }, function(mutations) {
         callback(getRaw ? mutations[0].target : $(mutations[0].target).text().trim());
@@ -50,96 +209,15 @@ docs.getSelectionWithObserver = function (callback, defaultToParagraph, getRaw)
     var e = new CustomEvent("copy");
     $(".docs-texteventtarget-iframe").contents().find("[contenteditable=\"true\"]")[0].dispatchEvent(e);
 };
-docs.getSelection = docs.getSelectionWithObserver;
-
-docs.colors = {
-    "gray": "#docs-material-colorpalette-cell-5 > div:nth-child(1)",
-    "black": "#docs-material-colorpalette-cell-0 > div:nth-child(1)",
-    "white": "#docs-material-colorpalette-cell-9 > div:nth-child(1)"
-};
-
-docs.setColor = function (colorSelector) {
-    $("#textColorButton > div:nth-child(1) > div:nth-child(1)")[0].dispatchEvent(new MouseEvent("mousedown", { bubbles: true }));
-
-    var el = $(colorSelector)[0];
-    el.dispatchEvent(new MouseEvent("mouseenter", { bubbles: true }));
-    el.dispatchEvent(new MouseEvent("mousedown", { bubbles: true }));
-    el.dispatchEvent(new MouseEvent("mouseup", { bubbles: true }));
-    el.dispatchEvent(new MouseEvent("click", { bubbles: true }));
-    el.dispatchEvent(new MouseEvent("mouseleave", { bubbles: true }));
-};
-
-docs.ctrlKeyShortcut = function (secondKey) {
-    function _doToggleSubscript() {
-        var ctrl = {
-            "key": "Control",
-            "charCode": 0,
-            "keyCode": 17,
-            "bubbles": true,
-            "cancelable": true,
-            "code": null,
-            "pageY": 7,
-            "which": 17,
-            "ctrlKey": true
-        };
-
-        var ctrlDown = docs.utils.createKeyboardEvent("keydown", ctrl);
-
-        var secondDown = docs.utils.createKeyboardEvent("keydown", secondKey);
-        var secondUp = docs.utils.createKeyboardEvent("keyup", secondKey);
-        var secondPress = docs.utils.createKeyboardEvent("keypress", secondKey);
-
-        var ctrlUp = docs.utils.createKeyboardEvent("keydown", ctrl);
-        var ctrlPress = docs.utils.createKeyboardEvent("keypress", ctrl);
-
-        var el = document.getElementsByClassName("docs-texteventtarget-iframe")[0].contentWindow.document.querySelector("[contenteditable=\"true\"]");
-        el.dispatchEvent(ctrlDown);
-        el.dispatchEvent(secondDown);
-        el.dispatchEvent(secondUp);
-        el.dispatchEvent(secondPress);
-        el.dispatchEvent(ctrlUp);
-        el.dispatchEvent(ctrlPress);
-    }
-    
-    if (docs.platform !== "userscript") {
-        function escape_quotes(str) {
-            //TODO: something that's not practically guaranteed to break here
-            return str.replace(/\\/g, "\\\\").replace(/\"/g, "\\\"")
-        }
-        docs.runWithCreateKeyboard("secondKey=JSON.parse(\"" + escape_quotes(JSON.stringify(secondKey)) + "\");" + _doToggleSubscript.toString(), "_doToggleSubscript", "");
-        return;
-    } else {
-        _doToggleSubscript();
-    }
-};
-
-docs.toggleSuperscript = function () {
-    var el = document.getElementsByClassName("docs-texteventtarget-iframe")[0].contentDocument;
-    var data = {"keyCode": 190, "ctrlKey": true};
-    key_event = new KeyboardEvent("keydown", data);
-    key_event.docs_plus_ = true;
-    el.dispatchEvent(key_event);
-};
-docs.toggleSubscript = function () {
-    var el = document.getElementsByClassName("docs-texteventtarget-iframe")[0].contentDocument;
-    var data = {"keyCode": 188, "ctrlKey": true};
-    key_event = new KeyboardEvent("keydown", data);
-    key_event.docs_plus_ = true;
-    el.dispatchEvent(key_event);
-};
-docs.toggleBold = function () {
-    var el = document.getElementsByClassName("docs-texteventtarget-iframe")[0].contentDocument;
-    var data = {"keyCode": 66, "ctrlKey": true};
-    key_event = new KeyboardEvent("keydown", data);
-    key_event.docs_plus_ = true;
-    el.dispatchEvent(key_event);
-};
 
+// callback(text) is called where text is the contents of the current paragraph
+// that the user's insertion pointer is on. WILL NOT WORK correctly if
+// __docs_plus__ is part of the current paragraph.
 docs.getCurrentParagraphText = function(callback) {
     //Set up an observer to observe all the paragraphs
     var calledAlready = false;
 
-    var observer = docs.utils.observe($(".kix-paginateddocumentplugin")[0], {
+    var observer = docs.observe($(".kix-paginateddocumentplugin")[0], {
         childList: true,
         subtree: true
     }, function(mutations) {
@@ -162,31 +240,41 @@ docs.getCurrentParagraphText = function(callback) {
                     });
 
                     var rawText = cloned.text().replace(/\s/g, " ").trim();
+                    rawText = rawText.replace("__docs_plus__", "");
 
-                    callback(rawText);
+                    for (var i = 0; i < "__docs_plus__".length; i++) {
+                        docs.backspace();
+                    }
 
-                    docs.backspace();
+                    callback(rawText);
                 }
                 calledAlready = true;
             }
         });
     });
 
-    docs.keyboard.typeLetters(" ");
+    docs.pasteText("__docs_plus__");
 };
 
+/*********** USER CURSOR ***********/
+// Gets the DOM element corresponding to the user's insertion point marker.
 docs.getUserCursor = function () {
     var myCursor = null;
 
     $(".kix-cursor").each(function () {
-        var caretColor = $(this).find(".kix-cursor-caret").css("border-left-color").replace(/,/g, "").replace(/\s/g, "").toLowerCase();
-        var isCaretBlack = caretColor.indexOf("(000)") !== -1 || caretColor.indexOf("#000") !== -1 || caretColor.indexOf("black") !== -1;
+        var caretColor = $(this).find(".kix-cursor-caret");
+        caretColor = caretColor.css("border-left-color").replace(/,/g, "");
+        caretColor = caretColor.replace(/\s/g, "").toLowerCase();
+        var isCaretBlack = (caretColor.indexOf("(000)") !== -1 ||
+                            caretColor.indexOf("#000") !== -1 ||
+                            caretColor.indexOf("black") !== -1);
+        var cursor_name = $(this).find(".kix-cursor-name").text().trim();
         
-        if ($(this).find(".kix-cursor-name").text().trim().length <= 0 && isCaretBlack) {
+        if (cursor_name.length <= 0 && isCaretBlack) {
             myCursor = $(this);
         }
     });
-    
+
     if (myCursor !== null) {
         return myCursor;
     }
@@ -195,10 +283,8 @@ docs.getUserCursor = function () {
     return $(".kix-cursor").first();
 };
 
+// Sets the width of the user's insertion point marker. @width should be a
+// width value compatible with CSS border-width: @width;
 docs.setCursorWidth = function(width) {
     docs.getUserCursor().find(".kix-cursor-caret").css("border-width", width);
 };
-
-var el = document.getElementsByClassName("docs-texteventtarget-iframe")[0].contentWindow.document.querySelector("[contenteditable=\"true\"]");
-ev = new KeyboardEvent("keydown", {"code": 37})
-el.dispatchEvent(ev);
diff --git a/editor-input.js b/editor-input.js
deleted file mode 100644
index e8b0076..0000000
--- a/editor-input.js
+++ /dev/null
@@ -1,82 +0,0 @@
-docs.keyboard = {
-    "blockedKeydown_": function (e) {
-        if (e.docs_plus_) {
-            return;
-        }
-        if (!docs.keyboard.blockedKeydown) {
-            return;
-        }
-        if (typeof e.key === "undefined") {
-            e.key = docs.utils.keyFromKeyCode(e.shiftKey, e.keyCode);
-        }
-        docs.keyboard.blockedKeydown(e);
-    },
-    "unblockedKeydown_": function (e) {
-        if (e.docs_plus_) {
-            return;
-        }
-        if (!docs.keyboard.unblockedKeydown) {
-            return;
-        }
-        if (typeof e.key === "undefined") {
-            e.key = docs.utils.keyFromKeyCode(e.shiftKey, e.keyCode);
-        }
-        docs.keyboard.unblockedKeydown(e);
-    },
-};
-
-docs.keyboard.startBlockingMouse = function () {
-    $(".kix-appview-editor").on("mousedown click mouseup mousemove mouseover", docs.utils.stopEvent);
-
-    $(".kix-appview-editor").children().on("mousedown click mouseup mousemove mouseover", docs.utils.stopEvent);
-
-    $("#attendees-dropdown, #action-button").on("mousedown", keyboard.escape);
-};
-docs.keyboard.stopBlockingMouse = function () {
-    $(".kix-appview-editor").off("mousedown click mouseup mousemove mouseover").children().off("mousedown click mouseup mousemove mouseover");
-    $("#attendees-dropdown, #action-button").off("mousedown", keyboard.escape);
-};
-
-docs.keyboard.startBlockingKeyboard = function () {
-    if (docs.keyboard.blockedKeydown) {
-        $(".docs-texteventtarget-iframe").contents().find("[contenteditable=\"true\"]").on("keydown", docs.keyboard.blockedKeydown_);
-    }
-    if (docs.keyboard.unblockedKeydown) {
-        $(".docs-texteventtarget-iframe").contents().find("[contenteditable=\"true\"]").off("keydown", docs.keyboard.unblockedKeydown_);
-    }
-};
-docs.keyboard.stopBlockingKeyboard = function () {
-    if (docs.keyboard.blockedKeydown) {
-        $(".docs-texteventtarget-iframe").contents().find("[contenteditable=\"true\"]").off("keydown", docs.keyboard.blockedKeydown_);
-    }
-    if (docs.keyboard.unblockedKeydown) {
-        $(".docs-texteventtarget-iframe").contents().find("[contenteditable=\"true\"]").on("keydown", docs.keyboard.unblockedKeydown_);
-    }
-};
-
-$(".docs-texteventtarget-iframe").contents().find("[contenteditable=\"true\"]").on("keydown", docs.keyboard.unblockedKeydown_);
-
-docs.keyboard.pressKey = function (keyCode) {
-    var el = document.getElementsByClassName("docs-texteventtarget-iframe")[0].contentDocument;
-    var data = {"keyCode": keyCode};
-    var is_command = (keyCode <= 46);
-    var key_event;
-    if (is_command) {
-        key_event = new KeyboardEvent("keydown", data);
-    } else {
-        key_event = new KeyboardEvent("keypress", data);
-    }
-
-    key_event.docs_plus_ = true;
-    el.dispatchEvent(key_event);
-};
-
-docs.keyboard.typeLetters = function (text) {
-    for (var i = 0; i < character.length; i++) {
-        docs.keyboard.pressKey(text.charCodeAt(i));
-    }
-};
-
-docs.keyboard.backspace = function (counts) {
-    docs.keyboard.pressKey(8);
-};
diff --git a/manifest.json b/manifest.json
new file mode 100644
index 0000000..6e7a80f
--- /dev/null
+++ b/manifest.json
@@ -0,0 +1,19 @@
+{
+  "manifest_version": 2,
+  "name": "Docs-Plus Test Addon",
+  "version": "0.01",
+
+  "applications": {
+    "gecko": {
+      "id": "docs-plus-test@matthewsot.outlook.com",
+      "strict_min_version": "45.0"
+    }
+  },
+
+  "content_scripts": [
+    {
+      "matches": ["*://*.google.com/*document/d/*/edit*"],
+      "js": ["third_party/jquery.min.js", "docs.js", "test.js"]
+    }
+  ]
+}
diff --git a/reference/LICENSE.md b/reference/LICENSE.md
deleted file mode 100644
index 3e00748..0000000
--- a/reference/LICENSE.md
+++ /dev/null
@@ -1 +0,0 @@
-The files in this directory should be used for reference purposes only - they are not licensed under the MIT license that the rest of this library is.
diff --git a/reference/README.md b/reference/README.md
index 8cfe201..41dce58 100644
--- a/reference/README.md
+++ b/reference/README.md
@@ -1 +1,4 @@
-This folder contains a few files taken directly from the Action source code that have some integration-related functions. They are currently provided here for reference only, until I go through them and remove the Action-specific sections of code.
+This folder contains a few files taken directly from the Action source code
+that have some integration-related functions. They are currently provided here
+for reference only, until I go through them and remove the Action-specific
+sections of code.
diff --git a/test.js b/test.js
new file mode 100644
index 0000000..ed76ab3
--- /dev/null
+++ b/test.js
@@ -0,0 +1,83 @@
+// https://stackoverflow.com/questions/951021
+function sleep(ms) {
+  return new Promise(resolve => setTimeout(resolve, ms));
+}
+
+docs.keydown = async function (e) {
+    console.log("Key down:" + e.key);
+    if (e.key == "r" && e.altKey) {
+        e.preventDefault();
+        e.stopPropagation();
+
+        docs.pressLetters("Heytypo");
+        for (var i = 0; i < "typo".length; i++) {
+            docs.backspace();
+        }
+        docs.pasteText("\nThis doc's name is: " + docs.name +
+                       " and the id is: " + docs.id + "\n" +
+                       "There should be a blank line after this:\n" +
+                       "\nAnd before this.");
+        await sleep(500);
+
+        docs.setColor("gray");
+        docs.pasteText("\nThis text should be in gray.");
+        await sleep(500);
+
+        docs.setColor("black");
+        docs.pasteText("\nThis should be back in black.\n");
+        await sleep(500);
+
+        docs.toggleSuperscript();
+        docs.pasteText("This should be superscript.");
+        await sleep(500);
+
+        docs.toggleSuperscript();
+        docs.pasteText("Back to normal.");
+        await sleep(500);
+
+        docs.toggleSubscript();
+        docs.pasteText("Subscript.");
+        await sleep(500);
+
+        docs.toggleSubscript();
+        docs.pasteText("Back to normal.");
+        await sleep(500);
+
+        docs.toggleBold();
+        docs.pasteText("\nThis should be bold.");
+        await sleep(500);
+
+        docs.toggleBold();
+        docs.pasteText("Back to normal.\n");
+        await sleep(500);
+
+        docs.pasteText("A few tests require user input:\n" +
+                       "1) Select something (or not) and press alt+s to " +
+                       "check the selection methods.\n" +
+                       "2) Press alt+c to check the cursor method.\n" +
+                       "Your cursor should be between these quotes: \"\"\n");
+        await sleep(500);
+
+        docs.pressKey(docs.codeFromKey("ArrowLeft"));
+        docs.pressKey(docs.codeFromKey("ArrowLeft"));
+
+        docs.getCurrentParagraphText(function (text) {
+            var truth = "Your cursor should be between these quotes: \"\"";
+            console.log("getCurrentParagraphText got: " + text.trim());
+        });
+
+        return false;
+    }
+    if (e.key == "s" && e.altKey) {
+        docs.getSelection(function (selection) {
+            alert("You had selected: \"" + selection + "\"");
+        });
+    }
+    if (e.key == "c" && e.altKey) {
+        docs.pasteText("\nMaking cursor 10px wide...\n");
+        docs.setCursorWidth("10px");
+    }
+    return true;
+};
+
+console.log("Press alt + r to begin the test.");
diff --git a/third_party/jquery.min.js b/third_party/jquery.min.js
new file mode 100644
index 0000000..08c73f8
--- /dev/null
+++ b/third_party/jquery.min.js
@@ -0,0 +1,5 @@
+/*! jQuery v2.1.4 | (c) 2005, 2015 jQuery Foundation, Inc. | jquery.org/license */
+!function(a,b){"object"==typeof module&&"object"==typeof module.exports?module.exports=a.document?b(a,!0):function(a){if(!a.document)throw new Error("jQuery requires a window with a document");return b(a)}:b(a)}("undefined"!=typeof window?window:this,function(a,b){var c=[],d=c.slice,e=c.concat,f=c.push,g=c.indexOf,h={},i=h.toString,j=h.hasOwnProperty,k={},l=a.document,m="2.1.4",n=function(a,b){return new n.fn.init(a,b)},o=/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,p=/^-ms-/,q=/-([\da-z])/gi,r=function(a,b){return b.toUpperCase()};n.fn=n.prototype={jquery:m,constructor:n,selector:"",length:0,toArray:function(){return d.call(this)},get:function(a){return null!=a?0>a?this[a+this.length]:this[a]:d.call(this)},pushStack:function(a){var b=n.merge(this.constructor(),a);return b.prevObject=this,b.context=this.context,b},each:function(a,b){return n.each(this,a,b)},map:function(a){return this.pushStack(n.map(this,function(b,c){return a.call(b,c,b)}))},slice:function(){return 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diff --git a/utils.js b/utils.js
deleted file mode 100644
index 2da2c87..0000000
--- a/utils.js
+++ /dev/null
@@ -1,67 +0,0 @@
-var docs = docs || {
-    id: window.location.href.split("/document/d/")[1].split("/")[0],
-    get name() {
-        return $(".docs-title-input-label-inner").text().trim();
-    },
-    platform: "chrome" //chrome, firefox, userscript
-};
-docs.utils = {};
-
-docs.utils.observe = function (el, config, callback, observeOnce) {
-    observeOnce = (typeof observeOnce !== "undefined") && observeOnce;
-
-    var observer = new MutationObserver(function(mutations) {
-        if (observeOnce) {
-            observer.disconnect();
-        }
-        
-        callback(mutations);
-    });
-
-    observer.observe(el, config);
-
-    return observer;
-};
-
-docs.utils.keyFromKeyCode = function (shifted, keyCode) {
-    var specialKeys = { 191: "/", 27: "Escape", 16: "Shift", 17: "Control", 18: "Alt", 8: "Backspace", 32: " ", 13: "Enter", 9: "Tab", 37: "ArrowLeft", 38: "ArrowUp", 39: "ArrowRight", 40: "ArrowDown" };
-    var shiftedSpecialKeys = { 191: "?" };
-    if (keyCode in specialKeys) {
-        if (shifted && keyCode in shiftedSpecialKeys) {
-            return shiftedSpecialKeys[keyCode];
-        }
-        return specialKeys[keyCode];
-    } else {
-        var c = String.fromCharCode(keyCode);
-        if(!shifted) return c.toLowerCase();
-
-        var shifts = { "`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&", "8": "*", "9": "(", "0": ")", "-": "_", "=": "+" };
-        if (!(c in shifts)) {
-            return c.toUpperCase();
-        } else {
-            return shifts[c];
-        }
-    }
-};
-
-docs.utils.codeFromKey = function(key) {
-    var specialKeys = { "/": 191, "Escape": 27, "Shift": 16,
-        "Control": 17, "Alt": 18, "Backspace": 8, " ": 32, "Enter": 13,
-        "Tab": 9, "ArrowLeft": 37, "ArrowUp": 38, "ArrowRight": 39, "ArrowDown": 40,
-    "Delete": 46 };
-    if (key in specialKeys) {
-        return specialKeys[key];
-    }
-    return key.charCodeAt(key);
-};
-
-//Thanks! https://stackoverflow.com/questions/1740700/how-to-get-hex-color-value-rather-than-rgb-value
-docs.utils.rgb2hex = function(rgb) {
-    if (/^#[0-9A-F]{6}$/i.test(rgb)) return rgb;
-
-    rgb = rgb.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);
-    function hex(x) {
-        return ("0" + parseInt(x).toString(16)).slice(-2);
-    }
-    return "#" + hex(rgb[1]) + hex(rgb[2]) + hex(rgb[3]);
-}