Complete printing cleanup, rebased into one

common/lib/xmodule/xmodule/css/capa/display.scss

@@ -269,6 +269,13 @@ div.problem {
       }
     }
 
+    // Hides equation previews in symbolic response problems when printing
+    [id^='display'].equation {
+      @media print {
+        display:none;
+      }
+    }
+
     span {
       &.unanswered, &.ui-icon-bullet {
         display: inline-block;
@@ -628,6 +635,10 @@ div.problem {
       height: ($baseline*2);
       vertical-align: middle;
       font-weight: 600;
+
+      @media print {
+        display: none;
+      }
     }
 
     .save {

common/lib/xmodule/xmodule/css/sequence/display.scss

@@ -40,6 +40,10 @@ $sequence--border-color: #C8C8C8;
   position: relative;
   border-bottom: none;
 
+  @media print {
+    display: none;
+  }
+
   .left-shadow {
     @extend %ui-depth4;
     @include linear-gradient(left, $shadow, $transparent);
@@ -277,6 +281,10 @@ nav.sequence-bottom {
   height: 1px;
   margin: lh(2) auto;
   text-align: center;
+
+  @media print {
+    display: none;
+  }
 }
 
 #seq_content {

lms/static/sass/base/_base.scss

@@ -122,6 +122,10 @@ a:focus {
   margin: 0 auto;
   background: $content-wrapper-bg;
   padding-bottom: ($baseline*2);
+
+  @media print {
+    padding-bottom: 0;
+  }
 }
 
 .container {
@@ -246,6 +250,7 @@ mark {
   @include transform(rotate(-90deg));
   @include transform-origin(0 0);
   @extend %ui-depth2;
+  @extend %ui-print-excluded;
   top: 250px;
   left: 0;
   position: fixed;
@@ -337,6 +342,8 @@ mark {
 
 // UI - skipnav
 .nav-skip {
+  @extend %ui-print-excluded;
+
   display: block;
   position: absolute;
   left: 0;

lms/static/sass/base/_extends.scss

@@ -128,3 +128,10 @@
   white-space: nowrap;
   text-overflow: ellipsis;
 }
+
+// Adds a simple extend that indicates that this user interface element should not print
+%ui-print-excluded {
+  @media print {
+    display:none;
+  }
+}

lms/static/sass/course/_info.scss

@@ -237,4 +237,8 @@ div.info-wrapper {
       }
     }
   }
+
+  @media print {
+    border: 0;
+  }
 }

lms/static/sass/course/_tabs.scss

@@ -9,4 +9,8 @@ div.static_tab_wrapper {
   section {
     margin: 0px 0px 20px;
   }
+
+  @media print {
+    border: 0;
+  }
 }
\ No newline at end of file

lms/static/sass/course/courseware/_courseware.scss

@@ -12,6 +12,8 @@ html.video-fullscreen{
 }
 
 .wrap-instructor-info {
+  @extend %ui-print-excluded;
+
   margin: ($baseline/2) ($baseline/4) 0 0;
   overflow: hidden;
 
@@ -246,6 +248,10 @@ div.course-wrapper {
         padding: 0;
       }
     }
+
+    @media print {
+      padding: 0 2mm;
+    }
   }
 
   &.closed {
@@ -280,6 +286,10 @@ div.course-wrapper {
       width: flex-grid(11.5) + flex-gutter();
     }
   }
+
+  @media print {
+    border: 0;
+  }
 }
 
 .xmodule_VideoModule {

lms/static/sass/course/layout/_courseware_header.scss

 .wrapper-course-material {
   @include clearfix();
   @include box-sizing(border-box);
+  @extend %ui-print-excluded;
+
   border-bottom: none;
   margin: 0 auto 0;
   padding: 0;

lms/static/sass/course/modules/_calculator.scss

@@ -2,6 +2,8 @@
 // ====================
 
 div.calc-main {
+  @extend %ui-print-excluded;
+
   bottom: -126px;
   left: 0;
   position: fixed;

lms/static/sass/discussion/_discussion.scss

@@ -673,6 +673,8 @@ body.discussion {
 // inline discussion module and profile thread styling
 .discussion-module {
   @extend .discussion-body;
+  @extend %ui-print-excluded;
+
   position: relative;
   margin: $baseline 0;
   padding: $baseline;

lms/static/sass/shared/_footer.scss

@@ -289,6 +289,10 @@ $edx-footer-bg-color: rgb(252,252,252);
 .edx-footer-new {
   background: $edx-footer-bg-color;
 
+  @media print {
+    @include padding(10px, 10px, 0, 10px);
+  }
+
   // NOTE: resetting older footer styles - can be removed once not needed
   box-shadow: none;
   border-top: none;
@@ -300,10 +304,19 @@ $edx-footer-bg-color: rgb(252,252,252);
     @extend %edx-footer-reset;
     @extend %edx-footer-section;
     width: flex-grid(6,12);
+
+    @media print {
+      @include margin-right(0);
+      @include padding-right(0);
+      width: flex-grid(12,12);
+      border: none;
+      min-height: 0;
+    }
   }
 
   .footer-about-title {
     @extend %edx-footer-title;
+    @extend %ui-print-excluded;
   }
 
   .footer-about-logo, .footer-about-openedx {
@@ -324,14 +337,19 @@ $edx-footer-bg-color: rgb(252,252,252);
 
   .footer-about-logo {
     @include float(left);
+    @extend %ui-print-excluded;
   }
 
   .footer-about-openedx-logo {
     @include float(right);
+    @media print {
+      @include float(left);
+    }
   }
 
   .footer-about-copy {
     @extend %t-copy-sub1;
+    @extend %ui-print-excluded;
     margin-bottom: $edx-footer-spacing;
     color: rgb(61, 62, 63);
     clear: both;
@@ -357,9 +375,14 @@ $edx-footer-bg-color: rgb(252,252,252);
       display: inline-block;
       margin-bottom: ($edx-footer-spacing/2);
     }
+
+    @media print {
+      margin-bottom: 0;
+    }
   }
 
   .footer-about-links {
+    @extend %ui-print-excluded;
 
     a {
       @extend %edx-footer-link;
@@ -376,6 +399,7 @@ $edx-footer-bg-color: rgb(252,252,252);
   .footer-nav {
     @extend %edx-footer-reset;
     @extend %edx-footer-section;
+    @extend %ui-print-excluded;
     width: flex-grid(3,12);
   }
 
@@ -397,8 +421,8 @@ $edx-footer-bg-color: rgb(252,252,252);
   .footer-follow {
     @extend %edx-footer-reset;
     @extend %edx-footer-section;
+    @extend %ui-print-excluded;
     width: flex-grid(3,12);
-
   }
 
   .footer-follow-title {

lms/static/sass/shared/_header.scss

@@ -117,6 +117,8 @@ header.global {
 
   .user {
     @include float(right);
+    @extend %ui-print-excluded;
+
     margin-top: ($baseline/4);
 
     > .primary {