Elide origins for passwords settings in CSS instead of JS

chrome/browser/resources/options/password_manager.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('options', function() {
   /** @const */ var Page = cr.ui.pageManager.Page;
   /** @const */ var PageManager = cr.ui.pageManager.PageManager;
   /** @const */ var ArrayDataModel = cr.ui.ArrayDataModel;
 
   /////////////////////////////////////////////////////////////////////////////
@@ skipping 153 matching lines @@
      * @param {!cr.ui.List} list The list to toggle visilibility for.
      */
     updateListVisibility_: function(list) {
       var empty = list.dataModel.length == 0;
       var listPlaceHolderID = list.id + '-empty-placeholder';
       list.hidden = empty;
       $(listPlaceHolderID).hidden = !empty;
     },
 
     /**
-     * Updates eliding of origins. If there is no enough space to show the full
-     * origin, the origin is elided from the left with ellipsis.
-     * @param {!cr.ui.List} list The list to update eliding.
-     */
-    updateOriginsEliding_: function(list) {
-      var entries = list.getElementsByClassName('deletable-item');
-      if (entries.length == 0)
-        return;
-      var entry = entries[0];
-      var computedStyle = window.getComputedStyle(entry.urlDiv);
-      var columnWidth = entry.urlDiv.offsetWidth -
-          parseInt(computedStyle.webkitMarginStart, 10) -
-          parseInt(computedStyle.webkitPaddingStart, 10);
-
-      // We use a canvas context to compute text widths. This canvas is not
-      // part of the DOM and thus avoids layout thrashing when updating the
-      // contained text.
-      var canvas = document.createElement('canvas');
-      var ctx = canvas.getContext('2d');
-      ctx.font = computedStyle.font;
-
-      for (var i = 0; i < entries.length; ++i) {
-        entry = entries[i];
-        // For android://com.example, elide from the right.
-        if (!entry.isClickable)
-          continue;
-        var cellWidth = columnWidth;
-        if (entry.androidUriSuffix)
-          cellWidth -= entry.androidUriSuffix.offsetWidth;
-        var urlLink = entry.urlLink;
-        if (cellWidth <= 0) {
-          console.error('cellWidth <= 0. Skip origins eliding for ' +
-              urlLink.textContent);
-          continue;
-        }
-
-        var textContent = urlLink.textContent;
-        if (ctx.measureText(textContent).width <= cellWidth)
-          continue;
-
-        textContent = '…' + textContent.substring(1);
-        while (ctx.measureText(textContent).width > cellWidth)
-          textContent = '…' + textContent.substring(2);
-
-        // Write the elided origin back to the DOM.
-        urlLink.textContent = textContent;
-      }
-    },
-
-    /**
      * Updates the data model for the saved passwords list with the values from
      * |entries|.
      * @param {!Array} entries The list of saved password data.
      */
     setSavedPasswordsList_: function(entries) {
       if (this.lastQuery_) {
         // Implement password searching here in javascript, rather than in C++.
         // The number of saved passwords shouldn't be too big for us to handle.
         var query = this.lastQuery_;
         var filter = function(entry, index, list) {
           // Search both shown URL and username.
           var shownOrigin = entry[options.passwordManager.SHOWN_ORIGIN_FIELD];
           var username = entry[options.passwordManager.USERNAME_FIELD];
           if (shownOrigin.toLowerCase().indexOf(query.toLowerCase()) >= 0 ||
               username.toLowerCase().indexOf(query.toLowerCase()) >= 0) {
             // Keep the original index so we can delete correctly. See also
             // deleteItemAtIndex() in password_manager_list.js that uses this.
             entry[options.passwordManager.ORIGINAL_INDEX_FIELD] = index;
             return true;
           }
           return false;
         };
         entries = entries.filter(filter);
       }
       this.savedPasswordsList_.dataModel = new ArrayDataModel(entries);
       this.updateListVisibility_(this.savedPasswordsList_);
-      // updateOriginsEliding_ should be called after updateListVisibility_,
-      // otherwise updateOrigins... might be not able to read width of elements.
-      this.updateOriginsEliding_(this.savedPasswordsList_);
     },
 
     /**
      * Updates the data model for the password exceptions list with the values
      * from |entries|.
      * @param {!Array} entries The list of password exception data.
      */
     setPasswordExceptionsList_: function(entries) {
       this.passwordExceptionsList_.dataModel = new ArrayDataModel(entries);
       this.updateListVisibility_(this.passwordExceptionsList_);
-      // updateOriginsEliding_ should be called after updateListVisibility_,
-      // otherwise updateOrigins... might be not able to read width of elements.
-      this.updateOriginsEliding_(this.passwordExceptionsList_);
     },
 
     /**
      * Reveals the password for a saved password entry. This is called by the
      * backend after it has authenticated the user.
      * @param {number} index The original index of the entry in the model.
      * @param {string} password The saved password.
      */
     showPassword_: function(index, password) {
       var model = this.savedPasswordsList_.dataModel;
@@ skipping 58 matching lines @@
     'showImportExportButton',
     'showPassword',
   ]);
 
   // Export
   return {
     PasswordManager: PasswordManager
   };
 
 });