Revert "js: Implement DynamicText class."

This reverts commit 6e7305f784.

We never ending up using this class.

.eslintrc.json

@@ -20,7 +20,6 @@
         "md5": false,
         "moment": false,
         "i18n": false,
-        "DynamicText": false,
         "LightboxCanvas": false,
         "bridge": false,
         "page_params": false,

static/js/dynamic_text.js

@@ -1,99 +0,0 @@
-/* eslint indent: "off" */
-
-// This is a public instance of the `DynamicText` class.
-// The `DynamicText` object serves to resize text that is set through its
-// public methods so that the text won't ever overrun the parent container.
-var DynamicText = (function () {
-    // the initialization of the `DynamicText` instance.
-    var DynamicText = function ($parent) {
-        if (typeof jQuery !== "undefined" && $parent instanceof jQuery) {
-            // we grab the first element in a jQuery list to run DynamicText on.
-            this.parent = $parent[0];
-        } else if ($parent instanceof Node) {
-            // this is a node rather than a list, so we just take the element given
-            // to run DynamicText on.
-            this.parent = $parent;
-        }
-
-        this.node = document.createElement("span");
-        this.node.style.whiteSpace = "nowrap";
-
-        this.prev_content = this.parent.innerHTML;
-        this.parent.innerHTML = "";
-        this.parent.appendChild(this.node);
-
-        this.update();
-    };
-
-    // an object for private functions that are inaccessible to the outside
-    // world.
-    var internal_funcs = {
-        insertText: function (type, text, node, parent) {
-            if (type === DynamicText.prototype.TYPE.TEXT) {
-                node.innerText = text;
-            } else if (type === DynamicText.prototype.TYPE.HTML) {
-                node.innerHTML = text;
-            } else {
-                blueslip.error("The method '" + type + "' is not a valid " +
-                              " DynamicText input method.");
-            }
-
-            // reset the font-size to inherit the parent's size; 1em.
-            node.style.fontSize = "1em";
-
-            var width = {
-                node: node.offsetWidth,
-                parent: parent.clientWidth,
-            };
-
-            // if the width is larger than the parent, resize by the ratio of
-            // the parent's width to the node's width.
-            if (width.node > width.parent) {
-                node.style.fontSize = (width.parent / width.node) + "em";
-            } else {
-                node.style.fontSize = "1em";
-            }
-        },
-    };
-
-    DynamicText.prototype = {
-        // insertion enum types.
-        TYPE: {
-            TEXT: 1,
-            HTML: 2,
-        },
-
-        // re-set the content inside the span element and process for width.
-        // the structure goes like:
-        // FROM:    <parent>content</parent>
-        // TO:      <parent>
-        //              <span style="font-size: {{ value }}">content</span>
-        //          </parent>
-        update: function () {
-            // call `text` by default since if HTML is needed (unsafe), it can be
-            // done manually.
-            this.text(this.prev_content);
-        },
-
-        // this takes about 0.005ms for items that don't need resizing and 0.08ms
-        // for items that do need resizing.
-        text: function (text) {
-            internal_funcs.insertText(this.TYPE.TEXT, text, this.node, this.parent);
-        },
-
-        // this function takes approx 0.4ms/iteration.
-        // the speed is mostly limited to the slowness of the innerHTML function.
-        html: function (html) {
-            internal_funcs.insertText(this.TYPE.HTML, html, this.node, this.parent);
-        },
-    };
-
-    // keep these arguments updated with `DynamicText` class constructor.
-    return function ($node) {
-        return new DynamicText($node);
-    };
-}());
-
-if (typeof module !== 'undefined') {
-    module.exports = DynamicText;
-}

tools/linter_lib/custom_check.py

@@ -260,7 +260,6 @@ def build_custom_checkers(by_lang):
              'frontend_tests/node_tests/upload.js',
              'frontend_tests/node_tests/templates.js',
              'static/js/upload.js',
-             'static/js/dynamic_text.js',
              'static/js/stream_color.js',
          ]),
          'good_lines': ['#my-style {color: blue;}'],

zproject/settings.py

@@ -914,7 +914,6 @@ JS_SPECS = {
             'js/feature_flags.js',
             'js/loading.js',
             'js/util.js',
-            'js/dynamic_text.js',
             'js/keydown_util.js',
             'js/lightbox_canvas.js',
             'js/rtl.js',