From 5c676f06d8d78129444bfb86d36f0eb5f88bbd43 Mon Sep 17 00:00:00 2001
From: FelisDiligens <47528453+FelisDiligens@users.noreply.github.com>
Date: Tue, 2 May 2023 09:46:08 +0200
Subject: [PATCH 1/2] Remove iframe border

---
 src/iframe.css | 8 ++++++++
 src/index.ts   | 5 +++++
 2 files changed, 13 insertions(+)
 create mode 100644 src/iframe.css

diff --git a/src/iframe.css b/src/iframe.css
new file mode 100644
index 0000000..bf515db
--- /dev/null
+++ b/src/iframe.css
@@ -0,0 +1,8 @@
+/*
+  Remove the bottom border for plugin iframes,
+  such that the tabs can "connect" to the rest of Joplin's UI.
+*/
+
+iframe {
+    border-bottom: none !important;
+}
\ No newline at end of file
diff --git a/src/index.ts b/src/index.ts
index d6a94a2..752326b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -23,6 +23,11 @@ joplin.plugins.register({
     // panel
     const panel = new Panel(tabs, settings);
     await panel.register();
+    // custom CSS (to disable iframe border)
+    // source: https://github.com/andrejilderda/joplin-macos-native-theme/blob/main/src/index.ts#LL22C5-L22C5
+    const installDir = await joplin.plugins.installationDir();
+		const cssFilePath = installDir + '/iframe.css';
+    await (joplin as any).window.loadChromeCssFile(cssFilePath);
 
     //#region HELPERS
 

From 28166a294ceb14b5721c5af3ef44793da2579a81 Mon Sep 17 00:00:00 2001
From: FelisDiligens <47528453+FelisDiligens@users.noreply.github.com>
Date: Tue, 2 May 2023 09:48:55 +0200
Subject: [PATCH 2/2] Style tabs to resemble Chrome's

---
 src/panel.ts                      | 39 ++++++++++++++++-
 src/settings.ts                   | 10 +++--
 src/webview.css                   | 70 +++++++++++++++++++++++++++----
 src/webview_auto.css              |  8 ++++
 src/webview_horizontal_bottom.css | 33 +++++++++++++++
 src/webview_vertical.css          |  8 ++++
 6 files changed, 153 insertions(+), 15 deletions(-)
 create mode 100644 src/webview_horizontal_bottom.css

diff --git a/src/panel.ts b/src/panel.ts
index 648e650..3fc78de 100644
--- a/src/panel.ts
+++ b/src/panel.ts
@@ -46,6 +46,9 @@ export class Panel {
     if (this.sets.hasLayoutMode(LayoutMode.Vertical)) {
       await joplin.views.panels.addScript(this._panel, './webview_vertical.css');
     }
+    if (this.sets.hasLayoutMode(LayoutMode.HorizontalBottom)) {
+      await joplin.views.panels.addScript(this._panel, './webview_horizontal_bottom.css');
+    }
     await joplin.views.panels.addScript(this._panel, './webview.js');
 
     // message handler
@@ -172,6 +175,15 @@ export class Panel {
         const iconTitle: string = (NoteTabs.isPinned(noteTab)) ? 'Unpin' : 'Pin';
         const textDecoration: string = (note.is_todo && note.todo_completed) ? 'line-through' : '';
 
+        // prepare tab style CSS
+        const tabStyle = `
+          height: ${this.sets.tabHeight}px;
+          min-width: ${this.sets.minTabWidth}px;
+          max-width: ${this.sets.maxTabWidth}px;
+          border-color: ${this.sets.dividerColor};
+          background: ${bg};
+        `.replace(/[\n\s]+/g, ""); // remove whitespace
+
         // prepare checkbox for todo
         let checkboxHtml: string = '';
         if (this.sets.showTodoCheckboxes && note.is_todo) {
@@ -182,7 +194,7 @@ export class Panel {
           <div id="tab" ${active} data-id="${note.id}" data-bg="${bg}" draggable="${this.sets.enableDragAndDrop}" class="${newTab}" role="tab" title="${title}"
             onclick="tabClick(event);" ondblclick="pinNote(event);" onauxclick="onAuxClick(event);" onmouseover="setBackground(event,'${this.sets.hoverBackground}');" onmouseout="resetBackground(this);"
             ondragstart="dragStart(event);" ondragend="dragEnd(event);" ondragover="dragOver(event, '${this.sets.hoverBackground}');" ondragleave="dragLeave(event);" ondrop="drop(event);"
-            style="height:${this.sets.tabHeight}px;min-width:${this.sets.minTabWidth}px;max-width:${this.sets.maxTabWidth}px;border-color:${this.sets.dividerColor};background:${bg};">
+            style="${tabStyle}">
             <span class="tab-inner">
               ${checkboxHtml}
               <span class="tab-title" style="color:${fg};text-decoration: ${textDecoration};">
@@ -308,17 +320,40 @@ export class Panel {
     const noteTabsHtml: string = await this.getNoteTabsHtml(selectedNote);
     const controlsHtml: string = this.getControlsHtml();
     const infoBarHtml: string = await this.getInfoBarHtml(selectedNote);
+    const placedBelow: boolean = this.sets.hasLayoutMode(LayoutMode.HorizontalBottom);
+
+    const tabBeforeAfterStyle = `
+      <style>
+        #tab[active]:before {
+          box-shadow: 2px ${placedBelow ? "-2px" : "2px"} 0 ${this.sets.actBackground};
+        }
+
+        #tab[active]:after {
+          box-shadow: -2px ${placedBelow ? "-2px" : "2px"} 0 ${this.sets.actBackground};
+        }
+
+        #tab[active]:hover:before {
+          box-shadow: 2px ${placedBelow ? "-2px" : "2px"} 0 ${this.sets.hoverBackground};
+        }
+        
+        #tab[active]:hover:after {
+          box-shadow: -2px ${placedBelow ? "-2px" : "2px"} 0 ${this.sets.hoverBackground};
+        }
+      </style>
+    `;
 
     // add entries to container and push to panel
     await joplin.views.panels.setHtml(this._panel, `
       <div id="container" style="background:${this.sets.background};font-family:${this.sets.fontFamily},sans-serif;font-size:${this.sets.fontSize};">
+        ${placedBelow ? infoBarHtml : ""}
         <div id="tabs-container" role="tablist" draggable="${this.sets.enableDragAndDrop}"
           ondragover="dragOver(event, '${this.sets.hoverBackground}');" ondragleave="dragLeave(event);" ondrop="drop(event);" ondragend="dragEnd(event);">
           ${noteTabsHtml}
           ${controlsHtml}
         </div>
-        ${infoBarHtml}
+        ${!placedBelow ? infoBarHtml : ""}
       </div>
+      ${tabBeforeAfterStyle}
     `);
   }
 
diff --git a/src/settings.ts b/src/settings.ts
index f741f27..b8c3bec 100644
--- a/src/settings.ts
+++ b/src/settings.ts
@@ -32,7 +32,8 @@ export enum UnpinBehavior {
 
 export enum LayoutMode {
   Auto,
-  Horizontal,
+  HorizontalTop,
+  HorizontalBottom,
   Vertical
 }
 
@@ -54,7 +55,7 @@ export class Settings {
   private _unpinBehavior: UnpinBehavior = UnpinBehavior.Keep;
   private _layoutMode: number = LayoutMode.Auto;
   // advanced settings
-  private _tabHeight: number = 35;
+  private _tabHeight: number = 30;
   private _minTabWidth: number = 50;
   private _maxTabWidth: number = 150;
   private _breadcrumbsMaxWidth: number = 100;
@@ -298,8 +299,9 @@ export class Settings {
         description: 'Force tabs horizontal or vertical layout. If Auto, the layout switches automatically at a width of about 400px. Requires restart to be applied.',
         options: {
           '0': 'Auto',
-          '1': 'Horizontal',
-          '2': 'Vertical'
+          '1': 'Horizontal (tabs above)',
+          '2': 'Horizontal (tabs below)',
+          '3': 'Vertical'
         }
       },
       // advanced settings
diff --git a/src/webview.css b/src/webview.css
index 28c70be..0f48977 100644
--- a/src/webview.css
+++ b/src/webview.css
@@ -9,15 +9,20 @@ body > div,
 div#joplin-plugin-content {
   height: 100%;
 }
+
 a {
   text-decoration: none;
 }
+
 span {
   cursor: default;
 }
 
 /* HORIZONTAL LAYOUT */
 #container {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-end;
   height: 100%;
   overflow-x: hidden;
   overflow-y: overlay;
@@ -26,40 +31,69 @@ span {
 
 #tabs-container {
   display: flex;
+  align-items: flex-end;
+  flex-grow: 1;
+  /*padding: 0px 5px 0 5px;*/
   float: left;
   overflow-x: overlay;
+  overflow-y: hidden;
   width: 100%;
 }
+
 #tab {
-  border-style: solid;
-  border-width: 0;
-  border-right-width: 1px;
   display: flex;
+  position: relative;
   padding: 0 8px;
   transition: 0.2s;
+  flex-grow: 1;
+  border-top-left-radius: 8px;
+  border-top-right-radius: 8px;
 }
+
 #tab .fas {
   margin-left: auto;
   margin-right: 0;
   padding: 2px;
-  visibility: hidden;
 }
-#tab:hover .fas {
-  visibility: visible;
+
+#tab[active]:before,
+#tab[active]:after {
+  position: absolute;
+  bottom: -1px;
+  width: 6px;
+  height: 6px;
+  content: " ";
+  transition: 0.2s;
+}
+
+#tab[active]:before {
+  z-index: 1;
+  left: -6px;
+  border-bottom-right-radius: 6px;
+}
+
+#tab[active]:after {
+  z-index: 1;
+  right: -6px;
+  border-bottom-left-radius: 6px;
 }
+
 .new {
   font-style: italic;
 }
+
 .tab-inner {
   align-items: center;
   display: flex;
   height: 100%;
   width: 100%;
 }
-.tab-inner > input {
+
+.tab-inner>input {
   margin: 0;
   margin-right: 3px;
 }
+
 .tab-title {
   overflow: hidden;
   padding-right: 3px;
@@ -75,6 +109,7 @@ span {
   margin-left: auto;
   margin-right: 0;
 }
+
 #controls .fas {
   align-items: center;
   display: flex;
@@ -86,6 +121,7 @@ span {
   opacity: 0.8;
   width: 26px;
 }
+
 #controls .fas:hover {
   opacity: 1;
 }
@@ -96,9 +132,11 @@ span {
   height: var(--infobarHeight);
   width: 100%;
 }
+
 #infobar-container .fas {
   font-size: 1.3em;
 }
+
 #infobar-container .fas.fa-book {
   font-size: 1.2em;
 }
@@ -111,10 +149,12 @@ span {
   min-width: fit-content;
   padding: 0 4px;
 }
+
 .navigation-icons a:hover {
   background: var(--joplin-background-color-hover3);
   border-radius: 3px;
 }
+
 .navigation-icons .fas {
   line-height: calc(var(--infobarHeight) - 2px);
   min-width: 12px;
@@ -129,20 +169,24 @@ span {
   min-width: fit-content;
   padding: 0 4px;
 }
+
 .checklist-state-inner {
   align-items: center;
   display: flex;
   line-height: calc(var(--infobarHeight) - 2px);
 }
+
 .checklist-state-text {
   align-items: center;
   display: flex;
   margin: 0 2px;
   padding: 0 4px;
 }
-.checklist-state-text > .fas {
+
+.checklist-state-text>.fas {
   padding-right: 4px;
 }
+
 .checklist-state-text.completed {
   background: #46ba61;
   color: white;
@@ -153,6 +197,7 @@ span {
   margin: auto 0;
   padding-left: 8px;
 }
+
 #breadcrumbs-container {
   display: flex;
   float: left;
@@ -160,28 +205,34 @@ span {
   overflow-y: hidden;
   width: 100%;
 }
+
 .breadcrumb {
   display: flex;
   height: var(--infobarHeight);
   min-width: 36px;
 }
+
 .breadcrumb:last-of-type .fas {
   display: none;
 }
+
 .breadcrumb-inner {
   align-items: center;
   display: flex;
   line-height: calc(var(--infobarHeight) - 2px);
   width: 100%;
 }
+
 .breadcrumb-inner a:hover {
   background: var(--joplin-background-color-hover3);
   border-radius: 3px;
 }
+
 .breadcrumb-inner .fas {
   margin-left: auto;
   margin-right: 0px;
 }
+
 .breadcrumb-title {
   margin: 0 2px;
   overflow: hidden;
@@ -206,7 +257,8 @@ span {
   height: 4px;
   width: 7px;
 }
+
 ::-webkit-scrollbar-thumb {
   background: rgba(0, 0, 0, 0.2);
   border-radius: 5px;
-}
+}
\ No newline at end of file
diff --git a/src/webview_auto.css b/src/webview_auto.css
index 3ece6d7..074764d 100644
--- a/src/webview_auto.css
+++ b/src/webview_auto.css
@@ -3,14 +3,22 @@
   #tabs-container {
     display: block;
     height: 100%;
+    padding: 0;
   }
 
   #tab {
     border-right-width: 0;
     border-bottom-width: 1px;
+    border-top-left-radius: 0;
+    border-top-right-radius: 0;
     max-width: 100% !important;
   }
 
+  #tab[active]:before,
+  #tab[active]:after {
+    visibility: hidden;
+  }
+
   #breadcrumbs-container {
     display: none !important;
   }
diff --git a/src/webview_horizontal_bottom.css b/src/webview_horizontal_bottom.css
new file mode 100644
index 0000000..2853bd9
--- /dev/null
+++ b/src/webview_horizontal_bottom.css
@@ -0,0 +1,33 @@
+/*
+  If the user places the tabs on the bottom,
+  we want to make the tabs connect to the upper border instead.
+*/
+
+#container {
+  align-items: flex-start;
+}
+
+#tabs-container {
+  align-items: flex-start;
+}
+
+#tab {
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
+  border-bottom-left-radius: 8px;
+  border-bottom-right-radius: 8px;
+}
+
+#tab[active]:before {
+  top: 0;
+  left: -6px;
+  border-top-right-radius: 6px;
+  border-bottom-right-radius: 0;
+}
+
+#tab[active]:after {
+  top: 0;
+  right: -6px;
+  border-top-left-radius: 6px;
+  border-bottom-left-radius: 0;
+}
\ No newline at end of file
diff --git a/src/webview_vertical.css b/src/webview_vertical.css
index 88831f9..8220b2a 100644
--- a/src/webview_vertical.css
+++ b/src/webview_vertical.css
@@ -2,14 +2,22 @@
 #tabs-container {
   display: block;
   height: 100%;
+  padding: 0;
 }
 
 #tab {
   border-right-width: 0;
   border-bottom-width: 1px;
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
   max-width: 100% !important;
 }
 
+#tab[active]:before,
+#tab[active]:after {
+  visibility: hidden;
+}
+
 #breadcrumbs-container {
   display: none !important;
 }