Imagery fixes (#2668)

* Fix imagery-related styles and markup

- VERY WIP!!!
- Style modernizing;
- Also, padding fixes for pane.scss - unit test for regressions!

* Fix imagery-related styles and markup

- VERY WIP!!!
- Style modernizing WIP;
- Fixes to pane classes for better padding in vertical panes;

* Fix imagery-related styles and markup

- Migrated all imagery CSS into imagery-view-layout.scss from _legacy
.scss;
- CSS cleanups;
- Refactoring/simplification of thumb layout;
- Color fixed for $colorPausedFg in theme constants;

* Scroll to right instead of bottom, on autoscroll.

* Fix imagery-related styles and markup

- Make the most recent thumb visually distinct;
- Clicking a selected thumb now deselects it and unpauses the view;

* Imagery fixes

- Fixed thumb click logic to properly toggle paused when clicking a selected thumb;
- Improved CSS so that `selected` updates more quickly when selecting the latest thumb;
- Clicking the main image pause button now selects the proper thumb;

* Fix linting errors

Co-authored-by: Nikhil <nikhil.k.mandlik@nasa.gov>

src/plugins/imagery/components/ImageryViewLayout.vue

@@ -1,90 +1,68 @@
 <template>
-<multipane class="c-imagery-layout"
-           type="vertical"
->
-    <pane :style="{'min-height': `300px`}">
-        <div class="main-image-wrapper c-imagery has-local-controls">
-            <div class="h-local-controls h-local-controls--overlay-content c-local-controls--show-on-hover l-flex-row c-imagery__lc">
-                <span class="holder flex-elem grows c-imagery__lc__sliders">
-                    <input v-model="filters.brightness"
-                           class="icon-brightness"
-                           type="range"
-                           min="0"
-                           max="500"
-                    >
-                    <input v-model="filters.contrast"
-                           class="icon-contrast"
-                           type="range"
-                           min="0"
-                           max="500"
-                    >
-                </span>
-                <span class="holder flex-elem t-reset-btn-holder c-imagery__lc__reset-btn">
-                    <a class="s-icon-button icon-reset t-btn-reset"
-                       @click="filters={brightness: 100, contrast: 100}"
-                    ></a>
-                </span>
-            </div>
-
-            <div class="main-image s-image-main"
-                 :class="{'paused unnsynced': paused(),'stale':false }"
-                 :style="{'background-image': `url(${getImageUrl()})`,
-                          'filter': `brightness(${filters.brightness}%) contrast(${filters.contrast}%)`}"
-            >
-            </div>
-
-            <div class="l-image-controller flex-elem l-flex-row">
-                <div class="l-datetime-w flex-elem grows">
-                    <a class="c-button show-thumbs sm hidden icon-thumbs-strip"></a>
-                    <span class="l-time">{{ getTime() }}</span>
-                </div>
-                <div class="h-local-controls flex-elem">
-                    <a class="c-button icon-pause pause-play"
-                       :class="{'is-paused': paused()}"
-                       @click="paused(!paused())"
-                    ></a>
-                </div>
-            </div>
-        </div>
-    </pane>
-
-    <pane class="c-inspector__elements"
-          handle="before"
-          :style="{'min-height': `100px`}"
-    >
-        <div class="c-elements-pool">
-            <div ref="thumbsWrapper"
-                 class="thumbs-layout"
-                 @scroll="handleScroll"
-            >
-                <div v-for="(imageData, index) in imageHistory"
-                     :key="index"
-                     class="l-image-thumb-item"
-                     :class="{selected: imageData.selected}"
-                     @click="setSelectedImage(imageData)"
+<div class="c-imagery">
+    <div class="c-imagery__main-image-wrapper has-local-controls">
+        <div class="h-local-controls h-local-controls--overlay-content c-local-controls--show-on-hover l-flex-row c-imagery__lc">
+            <span class="holder flex-elem grows c-imagery__lc__sliders">
+                <input v-model="filters.brightness"
+                       class="icon-brightness"
+                       type="range"
+                       min="0"
+                       max="500"
                 >
-                    <img class="l-thumb"
-                         :src="getImageUrl(imageData)"
-                    >
-                    <div class="l-time">{{ getTime(imageData) }}</div>
-                </div>
+                <input v-model="filters.contrast"
+                       class="icon-contrast"
+                       type="range"
+                       min="0"
+                       max="500"
+                >
+            </span>
+            <span class="holder flex-elem t-reset-btn-holder c-imagery__lc__reset-btn">
+                <a class="s-icon-button icon-reset t-btn-reset"
+                   @click="filters={brightness: 100, contrast: 100}"
+                ></a>
+            </span>
+        </div>
+        <div class="main-image s-image-main c-imagery__main-image"
+             :class="{'paused unnsynced': paused(),'stale':false }"
+             :style="{'background-image': `url(${getImageUrl()})`,
+                      'filter': `brightness(${filters.brightness}%) contrast(${filters.contrast}%)`}"
+        >
+        </div>
+        <div class="c-imagery__control-bar">
+            <div class="c-imagery__timestamp">{{ getTime() }}</div>
+            <div class="h-local-controls flex-elem">
+                <a class="c-button icon-pause pause-play"
+                   :class="{'is-paused': paused()}"
+                   @click="paused(!paused())"
+                ></a>
             </div>
         </div>
-    </pane>
-</multipane>
+    </div>
+    <div ref="thumbsWrapper"
+         class="c-imagery__thumbs-wrapper"
+         :class="{'is-paused': paused()}"
+         @scroll="handleScroll"
+    >
+        <div v-for="(imageData, index) in imageHistory"
+             :key="index"
+             class="c-imagery__thumb c-thumb"
+             :class="{selected: imageData.selected}"
+             @click="setSelectedImage(imageData)"
+        >
+            <img class="c-thumb__image"
+                 :src="getImageUrl(imageData)"
+            >
+            <div class="c-thumb__timestamp">{{ getTime(imageData) }}</div>
+        </div>
+    </div>
+</div>
 </template>
 
 <script>
-import multipane from '@/ui/layout/multipane.vue';
-import pane from '@/ui/layout/pane.vue';
 import _ from 'lodash';
 
 export default {
     inject: ['openmct', 'domainObject'],
-    components: {
-        multipane,
-        pane
-    },
     data() {
         return {
             autoScroll: true,
@@ -109,7 +87,7 @@ export default {
         this.subscribe(this.domainObject);
     },
     updated() {
-        this.scrollToBottom();
+        this.scrollToRight();
     },
     beforeDestroy() {
         this.stopListening();
@@ -152,6 +130,10 @@ export default {
             if (arguments.length > 0 && state !== this.isPaused) {
                 this.unselectAllImages();
                 this.isPaused = state;
+                if (state === true) {
+                    // If we are pausing, select the latest image in imageHistory
+                    this.setSelectedImage(this.imageHistory[this.imageHistory.length - 1]);
+                }
 
                 if (this.nextDatum) {
                     this.updateValues(this.nextDatum);
@@ -180,24 +162,31 @@ export default {
                     this.updateValues(values[values.length - 1]);
                 });
         },
-        scrollToBottom() {
+        scrollToRight() {
             if (this.isPaused || !this.$refs.thumbsWrapper || !this.autoScroll) {
                 return;
             }
 
-            const scrollHeight = this.$refs.thumbsWrapper.scrollHeight || 0;
-            if (!scrollHeight) {
+            const scrollWidth = this.$refs.thumbsWrapper.scrollWidth || 0;
+            if (!scrollWidth) {
                 return;
             }
 
-            setTimeout(() => this.$refs.thumbsWrapper.scrollTop = scrollHeight, 0);
+            setTimeout(() => this.$refs.thumbsWrapper.scrollLeft = scrollWidth, 0);
         },
         setSelectedImage(image) {
-            this.imageUrl = this.getImageUrl(image);
-            this.time = this.getTime(image);
-            this.paused(true);
-            this.unselectAllImages();
-            image.selected = true;
+            // If we are paused and the current image IS selected, unpause
+            // Otherwise, set current image and pause
+            if (this.isPaused && image.selected) {
+                this.paused(false);
+                this.unselectAllImages();
+            } else {
+                this.imageUrl = this.getImageUrl(image);
+                this.time = this.getTime(image);
+                this.paused(true);
+                this.unselectAllImages();
+                image.selected = true;
+            }
         },
         stopListening() {
             if (this.unsubscribe) {

src/plugins/imagery/components/imagery-view-layout.scss

@@ -1,16 +1,20 @@
-.c-imagery-layout {
+.c-imagery {
     display: flex;
     flex-direction: column;
-    overflow: auto;
+    overflow: hidden;
+    height: 100%;
 
-    .main-image-wrapper {
-        display: flex;
-        flex-direction: column;
-        height: 100%;
-        padding-bottom: 5px;
+    > * + * {
+        margin-top: $interiorMargin;
     }
 
-    .main-image {
+    &__main-image-wrapper {
+        display: flex;
+        flex-direction: column;
+        flex: 1 1 auto;
+    }
+
+    &__main-image {
         background-position: center;
         background-repeat: no-repeat;
         background-size: contain;
@@ -21,12 +25,137 @@
         }
     }
 
-    .l-image-controller {
+    &__control-bar {
         padding: 5px 0 0 0;
+        display: flex;
+        align-items: center;
     }
 
-    .thumbs-layout {
-        margin-top: 5px;
-        overflow: auto;
+    &__timestamp {
+        flex: 1 1 auto;
+    }
+
+    &__thumbs-wrapper {
+        flex: 0 0 auto;
+        display: flex;
+        flex-direction: row;
+        height: 135px;
+        overflow-x: auto;
+        overflow-y: hidden;
+
+        &.is-paused {
+            background: rgba($colorPausedBg, 0.4);
+        }
+
+        .c-thumb:last-child {
+            // Hilite the lastest thumb
+            background: $colorBodyFg;
+            color: $colorBodyBg;
+        }
+    }
+}
+
+/*************************************** THUMBS */
+.c-thumb {
+    display: flex;
+    flex-direction: column;
+    padding: 4px;
+    width: $imageThumbsD;
+
+    &:hover {
+        background: $colorThumbHoverBg;
+    }
+
+    &.selected {
+        background: $colorPausedBg !important;
+        color: $colorPausedFg !important;
+    }
+
+    &__image {
+        background-color: rgba($colorBodyFg, 0.2);
+        width: 100%;
+    }
+
+    &__timestamp {
+        flex: 0 0 auto;
+        padding: 2px 3px;
+    }
+}
+
+.l-layout,
+.c-fl {
+    .c-imagery__thumbs-wrapper {
+        //  When Imagery is in a layout, hide the thumbs area
+        display: none;
+    }
+}
+
+.s-image-main {
+    background-color: $colorPlotBg;
+    border: 1px solid transparent;
+}
+
+/*************************************** IMAGERY LOCAL CONTROLS*/
+.c-imagery {
+    .h-local-controls--overlay-content {
+        position: absolute;
+        right: $interiorMargin; top: $interiorMargin;
+        z-index: 2;
+        background: $colorLocalControlOvrBg;
+        border-radius: $basicCr;
+        max-width: 200px;
+        min-width: 100px;
+        width: 35%;
+        align-items: center;
+        padding: $interiorMargin $interiorMarginLg;
+
+        input[type="range"] {
+            display: block;
+            width: 100%;
+            &:not(:first-child) {
+                margin-top: $interiorMarginLg;
+            }
+
+            &:before {
+                margin-right: $interiorMarginSm;
+            }
+        }
+    }
+
+    &__lc {
+        &__reset-btn {
+            $bc: $scrollbarTrackColorBg;
+            &:before,
+            &:after {
+                border-right: 1px solid $bc;
+                content:'';
+                display: block;
+                width: 5px;
+                height: 4px;
+            }
+
+            &:before {
+                border-top: 1px solid $bc;
+                margin-bottom: 2px;
+            }
+
+            &:after {
+                border-bottom: 1px solid $bc;
+                margin-top: 2px;
+            }
+        }
+    }
+}
+
+/*************************************** BUTTONS */
+.c-button.pause-play {
+    // Pause icon set by default in markup
+    &.is-paused {
+        background: $colorPausedBg !important;
+        color: $colorPausedFg;
+
+        &:before {
+            content: $glyph-icon-play;
+        }
     }
 }

src/styles/_constants-espresso.scss

@@ -120,7 +120,7 @@ $colorFilter: $colorFilterFg; // Standalone against $colorBodyBg
 
 // States
 $colorPausedBg: #ff9900;
-$colorPausedFg: #fff;
+$colorPausedFg: #333;
 $colorOk: #33cc33;
 
 // Base variations

src/styles/_constants-maelstrom.scss

@@ -124,7 +124,7 @@ $colorFilter: $colorFilterFg; // Standalone against $colorBodyBg
 
 // States
 $colorPausedBg: #ff9900;
-$colorPausedFg: #fff;
+$colorPausedFg: #333;
 $colorOk: #33cc33;
 
 // Base variations

src/styles/_legacy.scss

@@ -52,236 +52,6 @@
     }
 }
 
-/******************************************************************* IMAGERY */
-.l-image-main-wrapper,
-.l-image-thumbs-wrapper,
-.image-main {
-    @include abs(0);
-    overflow: hidden;
-}
-
-/*************************************** MAIN LAYOUT */
-.l-image-main-wrapper {
-    // Imagery thumbs
-    bottom: $interiorMargin*2 +  $imageThumbsWrapperH;
-
-    min-width: 150px;
-    .l-image-main {
-        margin-bottom: $interiorMargin;
-    }
-    .l-image-main-controlbar {
-        &.l-flex-row { align-items: center; }
-    }
-}
-
-.l-image-thumbs-wrapper {
-    top: auto;
-    min-height: $imageThumbsWrapperH;
-    max-height: 60%;
-    box-sizing: border-box;
-}
-
-.l-date,
-.l-time,
-.l-timezone {
-    display: inline-block;
-}
-
-/*************************************** MAIN IMAGE */
-
-.image-main,
-.l-image-thumb-item .l-thumb {
-    background-size: contain;
-    background-position: center;
-    background-repeat: no-repeat;
-}
-
-.l-image-main-controlbar {
-    line-height: inherit;
-    .l-datetime-w, .l-controls-w {
-        direction: rtl;
-        overflow: hidden;
-    }
-    .l-datetime-w {
-        @include ellipsize();
-        margin-right: $interiorMarginSm;
-        text-align: left;
-    }
-    .l-controls-w {
-        z-index: 2;
-    }
-    .l-date,
-    .l-time {
-        color: pullForward($colorBodyFg, 20%); // TODO: do this as a theme constant
-    }
-    .l-mag {
-        direction: ltr;
-        display: inline-block;
-        &:before {
-            content: "\000049";
-        }
-    }
-    .s-mag {
-        color: pushBack($colorBodyFg, 20%); // TODO: do this as a theme constant
-    }
-    .l-btn.show-thumbs {
-        display: none;
-    }
-}
-
-.s-image-main {
-    background-color: $colorPlotBg;
-    border: 1px solid transparent;
-    &.paused {
-        //@include sUnsynced();
-    }
-}
-
-/*************************************** THUMBS */
-.l-image-thumbs-wrapper {
-    overflow-x: hidden;
-    overflow-y: auto;
-    padding-bottom: $interiorMargin;
-    white-space: nowrap;
-}
-
-.l-image-thumb-item {
-    transition: background-color 0.25s;
-    box-sizing: border-box;
-    cursor: pointer;
-    direction: ltr;
-    display: inline-block;
-    float: left;
-    padding: 1px;
-    margin-left: $interiorMarginSm;
-    position: relative;
-    text-align: left;
-    width: $imageThumbsD + $imageThumbPad*2;
-    white-space: normal;
-    .l-thumb,
-    .l-date,
-    .l-time {
-        display: inline-block;
-    }
-    .l-date,
-    .l-time {
-        padding: 2px 3px;
-    }
-
-    &:hover {
-        background: $colorThumbHoverBg;
-        .l-date,
-        .l-time {
-            color: #fff;
-        }
-    }
-    &.selected {
-        background: $colorKeySelectedBg;
-        .l-date,
-        .l-time {
-            color: #fff;
-        }
-    }
-    .l-thumb {
-        background-color: rgba(#fff, 0.1);
-        height: $imageThumbsD;
-        width: $imageThumbsD;
-        margin-top: 0;
-    }
-}
-
-/*************************************** LOCAL CONTROLS */
-.c-imagery {
-    display: contents;
-    .h-local-controls--overlay-content {
-        position: absolute;
-        right: $interiorMargin; top: $interiorMargin;
-        z-index: 2;
-        background: $colorLocalControlOvrBg;
-        border-radius: $basicCr;
-        max-width: 200px;
-        min-width: 100px;
-        width: 35%;
-        align-items: center;
-        padding: $interiorMargin $interiorMarginLg;
-
-        input[type="range"] {
-            display: block;
-            width: 100%;
-            &:not(:first-child) {
-                margin-top: $interiorMarginLg;
-            }
-
-            &:before {
-                margin-right: $interiorMarginSm;
-            }
-        }
-    }
-
-    &__lc {
-        &__reset-btn {
-            $bc: $scrollbarTrackColorBg;
-            &:before,
-            &:after {
-                border-right: 1px solid $bc;
-                content:'';
-                display: block;
-                width: 5px;
-                height: 4px;
-            }
-
-            &:before {
-                border-top: 1px solid $bc;
-                margin-bottom: 2px;
-            }
-
-            &:after {
-                border-bottom: 1px solid $bc;
-                margin-top: 2px;
-            }
-        }
-    }
-}
-
-
-/*************************************** WHEN IN FRAME */
-.c-frame .t-imagery {
-    .l-image-main-wrapper {
-        bottom: 0 !important;
-        height: 100% !important;
-        .l-image-main-controlbar .c-button {
-            //font-size: 0.7em;
-        }
-    }
-    .l-image-thumbs-wrapper,
-    mct-splitter {
-        display: none;
-    }
-}
-
-/*************************************** MOBILE */
-body.mobile.phone {
-    .t-imagery {
-        .l-image-main-wrapper,
-        .l-image-thumbs-wrapper {
-            min-height: 10px !important;
-        }
-    }
-}
-
-.c-button.pause-play {
-    // Pause icon set by default in markup
-
-    &.is-paused {
-        background: $colorPausedBg !important;
-        color: $colorPausedFg;
-
-        &:before {
-            content: $glyph-icon-play;
-        }
-    }
-}
-
 /*********************************************************************** CLOCKS AND TIMERS */
 .c-clock,
 .c-timer {

src/ui/layout/pane.scss

@@ -62,6 +62,8 @@
     }
 
     &[class*="--horizontal"] {
+        padding-left: $interiorMargin;
+        padding-right: $interiorMargin;
         &.l-pane--collapsed {
             padding-left: 0 !important;
             padding-right: 0 !important;
@@ -69,9 +71,11 @@
     }
 
     &[class*="--vertical"] {
+        padding-top: $interiorMargin;
+        padding-bottom: $interiorMargin;
         &.l-pane--collapsed {
             padding-top: 0 !important;
-            padding-top: 0 !important;
+            padding-bottom: 0 !important;
         }
     }
 
@@ -277,6 +281,9 @@
             /************************** Vertical Splitter Before */
             // Pane collapses downward. Used by Elements pool in Inspector
             &[class*="-before"] {
+                $m: $interiorMarginLg;
+                margin-top: $m;
+                padding-top: $m;
                 > .l-pane__handle {
                     top: 0;
                     transform: translateY(floor($splitterHandleD / -1));