Replace default vue-at style sheet with a wrapped version

The wrapped version roots all the rules of the default style sheet on
".talk.candidate-mentions", so the rules affect only the candidate
mentions of Talk. Otherwise, as the default rules are too broad (as they
use just ".atwho-XXX") they could mess with the autocompletion of other
elements (like the comments tab in the Files app).

Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>

4 files changed, 136 insertions, 2 deletions

diff --git a/css/At.scss b/css/At.scss
new file mode 100644
index 000000000..2ca905ab9
--- /dev/null
+++ b/css/At.scss
@@ -0,0 +1,132 @@
+// Copied from vue-at (https://github.com/fritx/vue-at/blob/d16d5eefdae8987c0bffe2d9c3867b7da12c808f/src/At.scss)
+// and wrapped to affect only the panel for candidate mentions.
+
+.talk.candidate-mentions {
+
+	// atwho.css https://github.com/ichord/At.js
+	.atwho-view {
+		// position:absolute;
+		// top: 0;
+		// left: 0;
+		// display: none;
+		// margin-top: 18px;
+		// background: white;
+		color: black;
+		// border: 1px solid #DDD;
+		border-radius: 3px;
+		box-shadow: 0 0 5px rgba(0,0,0,0.1);
+		min-width: 120px;
+		z-index: 11110 !important;
+	}
+	.atwho-ul {
+		/* width: 100px; */
+		list-style:none;
+		// padding:0;
+		// margin:auto;
+		// max-height: 200px;
+		// overflow-y: auto;
+	}
+	.atwho-li {
+		display: block;
+		// padding: 5px 10px;
+		// border-bottom: 1px solid #DDD;
+		// cursor: pointer;
+		/* border-top: 1px solid #C8C8C8; */
+	}
+
+	////// added 1
+	.atwho-view {
+		// font-size: 14px;
+		// min-width: 140px;
+		// max-width: 180px;
+		border-radius: 6px;
+		// overflow: hidden;
+		box-shadow: 0 0 10px 0 rgba(101, 111, 122, .5);
+	}
+	.atwho-ul {
+		max-height: 135px;
+		padding: 0;
+		margin: 0;
+	}
+	.atwho-li {
+		box-sizing: border-box;
+		height: 27px;
+		padding: 0 12px;
+		white-space: nowrap;
+		display: flex;
+		align-items: center;
+		span {
+			overflow: hidden;
+			text-overflow: ellipsis;
+		}
+	}
+	.atwho-cur {
+	// background: #44a8f2;
+	background: #5BB8FF;
+		color: white;
+	}
+
+	////// added 2
+	.atwho-wrap {
+		position: relative;
+	}
+	&.atwho-panel {
+		position: absolute;
+	}
+	.atwho-inner {
+		position: relative;
+	}
+	.atwho-view {
+		position: absolute;
+		bottom: 0;
+		left: -0.8em; // 抵消左边距
+		cursor: default;
+		background-color: rgba(255,255,255,.94);
+		min-width: 140px;
+		max-width: 180px;
+		max-height: 200px;
+		overflow-y: auto;
+		&::-webkit-scrollbar {
+			width: 11px;
+			height: 11px;
+		}
+		&::-webkit-scrollbar-track {
+			// background-color: rgba(127, 127, 127, .1);
+			background-color: #F5F5F5;
+		}
+		&::-webkit-scrollbar-thumb {
+			min-height: 36px;
+			border: 2px solid transparent;
+			border-top: 3px solid transparent;
+			border-bottom: 3px solid transparent;
+			background-clip: padding-box;
+			border-radius: 7px;
+			// background-color: rgba(0, 0, 0, 0.2);
+			background-color: #C4C4C4;
+		}
+	}
+}
+
+.talk.candidate-mentions {
+	// Override "max-width: 180px", as that makes the autocompletion panel too
+	// narrow.
+	.atwho-view {
+		max-width: unset;
+	}
+
+	// Override autocompletion panel items height, as they are too short
+	// for the avatars and also need some padding.
+	.atwho-li {
+		height: unset;
+		padding-top: 6px;
+		padding-bottom: 6px;
+	}
+
+	// Although the height of its wrapper is 32px the height of the icon
+	// is the default 16px. This is a temporary fix until it is fixed
+	// in the avatar component.
+	.atwho-li .icon-group-forced-white {
+		width: 32px;
+		height: 32px;
+	}
+}
diff --git a/css/icons.scss b/css/icons.scss
index 20d03346c..252049816 100644
--- a/css/icons.scss
+++ b/css/icons.scss
@@ -70,7 +70,7 @@
 
 // The atwho panel is a direct child of the body, so it is not affected by
 // .app-Talk rules above.
-.atwho-panel {
+.talk.candidate-mentions.atwho-panel {
 	// "forced-white" needs to be included in the class name as the Avatar does
 	// not accept several classes.
 	.icon-group-forced-white {
diff --git a/css/merged-files.scss b/css/merged-files.scss
index 04a24cced..96bd66d25 100644
--- a/css/merged-files.scss
+++ b/css/merged-files.scss
@@ -1 +1,2 @@
+@import 'At.scss';
 @import 'icons.scss';
diff --git a/css/merged.scss b/css/merged.scss
index 17087081d..96bd66d25 100644
--- a/css/merged.scss
+++ b/css/merged.scss
@@ -1 +1,2 @@
-@import 'icons.scss';
\ No newline at end of file
+@import 'At.scss';
+@import 'icons.scss';