Refactor print preview web ui

chrome/browser/resources/print_preview/header_footer_settings.js

Index: chrome/browser/resources/print_preview/header_footer_settings.js
diff --git a/chrome/browser/resources/print_preview/header_footer_settings.js b/chrome/browser/resources/print_preview/header_footer_settings.js
deleted file mode 100644
index df74c67be5ed4d951bfb309f2e72f0e3433a4179..0000000000000000000000000000000000000000
--- a/chrome/browser/resources/print_preview/header_footer_settings.js
+++ /dev/null
@@ -1,128 +0,0 @@
-// 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('print_preview', function() {
-  'use strict';
-
-  /**
-   * Creates a HeaderFooterSettings object. This object encapsulates all
-   * settings and logic related to the headers and footers checkbox.
-   * @constructor
-   */
-  function HeaderFooterSettings() {
-    this.headerFooterOption_ = $('header-footer-option');
-    this.headerFooterCheckbox_ = $('header-footer');
-    this.addEventListeners_();
-  }
-
-  cr.addSingletonGetter(HeaderFooterSettings);
-
-  HeaderFooterSettings.prototype = {
-    /**
-     * The checkbox corresponding to the headers and footers option.
-     * @type {HTMLInputElement}
-     */
-    get headerFooterCheckbox() {
-      return this.headerFooterCheckbox_;
-    },
-
-    /**
-     * Checks whether the Headers and Footers checkbox is checked or not.
-     * @return {boolean} true if Headers and Footers are checked.
-     */
-    hasHeaderFooter: function() {
-      return previewModifiable && this.headerFooterCheckbox_.checked;
-    },
-
-    /**
-     * Sets the state of the headers footers checkbox.
-     * @param {boolean} checked True if the headers footers checkbox shoule be
-     *     checked, false if not.
-     */
-    setChecked: function(checked) {
-      this.headerFooterCheckbox_.checked = checked;
-    },
-
-    /**
-     * Checks the printable area and updates the visibility of header footer
-     * option based on the selected margins.
-     * @param {{contentWidth: number, contentHeight: number, marginLeft: number,
-     *          marginRight: number, marginTop: number, marginBottom: number,
-     *          printableAreaX: number, printableAreaY: number,
-     *          printableAreaWidth: number, printableAreaHeight: number}}
-     *          pageLayout Specifies default page layout details in points.
-     * @param {number} marginsType Specifies the selected margins type value.
-     */
-    checkAndHideHeaderFooterOption: function(pageLayout, marginsType) {
-      var headerFooterApplies = true;
-      if (marginsType ==
-              print_preview.MarginSettings.MARGINS_VALUE_NO_MARGINS ||
-          !previewModifiable) {
-        headerFooterApplies = false;
-      } else if (marginsType !=
-                     print_preview.MarginSettings.MARGINS_VALUE_MINIMUM) {
-        if (cr.isLinux || cr.isChromeOS) {
-          headerFooterApplies = pageLayout.marginTop > 0 ||
-                                pageLayout.marginBottom > 0;
-        } else {
-          var pageHeight = pageLayout.marginTop + pageLayout.marginBottom +
-                           pageLayout.contentHeight;
-          headerFooterApplies =
-              (pageLayout.marginTop > pageLayout.printableAreaY) ||
-              (pageLayout.marginBottom >
-                   (pageHeight - pageLayout.printableAreaY -
-                    pageLayout.printableAreaHeight));
-        }
-      }
-      this.setVisible_(headerFooterApplies);
-      var headerFooterEvent = new cr.Event(
-          customEvents.HEADER_FOOTER_VISIBILITY_CHANGED);
-      headerFooterEvent.headerFooterApplies = headerFooterApplies;
-      document.dispatchEvent(headerFooterEvent);
-    },
-
-    /**
-     * Adding listeners to header footer related controls.
-     * @private
-     */
-    addEventListeners_: function() {
-      this.headerFooterCheckbox_.onclick =
-          this.onHeaderFooterChanged_.bind(this);
-      document.addEventListener(customEvents.PDF_LOADED,
-                                this.onPDFLoaded_.bind(this));
-    },
-
-    /**
-     * Listener executing when the user selects or de-selects the headers
-     * and footers option.
-     * @private
-     */
-    onHeaderFooterChanged_: function() {
-      requestPrintPreview();
-    },
-
-    /**
-     * Listener executing when a |customEvents.PDF_LOADED| event occurs.
-     * @private
-     */
-    onPDFLoaded_: function() {
-      if (!previewModifiable)
-        this.setVisible_(false);
-    },
-
-    /**
-     * Hides or shows |this.headerFooterOption_|.
-     * @param {boolean} visible True if |this.headerFooterOption_| should be
-     *     shown.
-     * @private
-     */
-    setVisible_: function(visible) {
-        this.headerFooterOption_.style.display = visible ? 'block' : 'none';
-    },
-  };
-
-  return {
-    HeaderFooterSettings: HeaderFooterSettings
-  };
-});