PrintPreview: Hide/Show the header footer option based on print frame margins.

chrome/test/data/webui/print_preview.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.
 
 /**
  * Test fixture for print preview WebUI testing.
  * @extends {testing.Test}
  * @constructor
  */
 function PrintPreviewWebUITest() {}
@@ skipping 252 matching lines @@
         });
       }));
 
   updateControlsWithSelectedPrinterCapabilities();
 
   checkSectionVisible(layoutSettings.layoutOption_, false);
   checkSectionVisible(colorSettings.colorOption_, false);
   checkSectionVisible(copiesSettings.copiesOption_, false);
 });
 
+// Page layout has zero margins. Hide header and footer option.
+TEST_F('PrintPreviewWebUITest', 'PageLayoutHasNoMarginsHideHeaderFooter',
+       function() {
+  setInitialSettings({previewModifiable: true});
+  onDidGetDefaultPageLayout({
+      contentWidth: 100, contentHeight: 200, marginLeft: 0, marginRight: 0,
+      marginTop: 0, marginBottom: 0, printableAreaX: 0, printableAreaY: 0,
+      printableAreaWidth: 100, printableAreaHeight: 200}, true);
+  checkSectionVisible(headerFooterSettings.headerFooterOption_, false);
+});
+
+// Page layout has non-zero margins. Show header and footer option.
+TEST_F('PrintPreviewWebUITest', 'PageLayoutHasMarginsShowHeaderFooter',
+       function() {
+  setInitialSettings({previewModifiable: true});
+  onDidGetDefaultPageLayout({
+      contentWidth: 100, contentHeight: 200, marginLeft: 3, marginRight: 2,
+      marginTop: 4, marginBottom: 1, printableAreaX: 1, printableAreaY: 1,
+      printableAreaWidth: 103, printableAreaHeight: 203}, true);
+  checkSectionVisible(headerFooterSettings.headerFooterOption_, true);
+});
+
+// Page layout has zero top and bottom margins. Hide header and footer option.
+TEST_F('PrintPreviewWebUITest', 'ZeroTopAndBottomMarginsHideHeaderFooter',
+       function() {
+  setInitialSettings({previewModifiable: true});
+  onDidGetDefaultPageLayout({
+      contentWidth: 100, contentHeight: 200, marginLeft: 3, marginRight: 2,
+      marginTop: 0, marginBottom: 0, printableAreaX: 1, printableAreaY: 1,
+      printableAreaWidth: 98, printableAreaHeight: 198}, false);
+  checkSectionVisible(headerFooterSettings.headerFooterOption_, false);
+});
+
+// Page layout has zero top and non-zero bottom margin. Show header and footer
+// option.
+TEST_F('PrintPreviewWebUITest', 'ZeroTopAndNonZeroBottomMarginShowHeaderFooter',
+       function() {
+  setInitialSettings({previewModifiable: true});
+  onDidGetDefaultPageLayout({
+      contentWidth: 100, contentHeight: 200, marginLeft: 6, marginRight: 4,
+      marginTop: 0, marginBottom: 3, printableAreaX: 1, printableAreaY: 1,
+      printableAreaWidth: 103, printableAreaHeight: 208}, false);
+  checkSectionVisible(headerFooterSettings.headerFooterOption_, true);
+});
+
 // Test that the color settings are set according to the printer capabilities.
 TEST_F('PrintPreviewWebUITest', 'TestColorSettings', function() {
   this.mockHandler.expects(once()).getPrinterCapabilities('FooDevice').
       will(callFunction(function() {
         updateWithPrinterCapabilities({
           disableColorOption: false,
           setColorAsDefault: true,
           disableCopiesOption: false,
           disableLandscapeOption: false,
           printerDefaultDuplexValue: print_preview.CopiesSettings.SIMPLEX,
@@ skipping 126 matching lines @@
 
 // Test that error message is displayed when plugin doesn't exist.
 TEST_F('PrintPreviewNoPDFWebUITest', 'TestErrorMessage', function() {
   var errorButton = $('error-button');
   assertNotEquals(null, errorButton);
   expectFalse(errorButton.disabled);
   var errorText = $('custom-message');
   assertNotEquals(null, errorText);
   expectFalse(errorText.hidden);
 });