[GM3Restyling] Remove the  `showConnector` property in `Dialog` component

Will remove the usage in the following CL

Bug: 383278166
Change-Id: Idc456c2aedc83f8d96364b921601430dd5454f36
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6085436
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Commit-Queue: Nancy Li <nancyly@chromium.org>
diff --git a/front_end/ui/components/dialogs/Dialog.test.ts b/front_end/ui/components/dialogs/Dialog.test.ts
index bc9c0b7..b389330 100644
--- a/front_end/ui/components/dialogs/Dialog.test.ts
+++ b/front_end/ui/components/dialogs/Dialog.test.ts
@@ -255,6 +255,7 @@
         });
     describe('with an anchor and possible overflow', () => {
       const CONTAINER_WIDTH = 500;
+      const CONTAINER_HEIGHT = 500;
       const HOST_OFFSET = 100;
       const HOST_HEIGHT = 100;
       const devtoolsDialog = new Dialogs.Dialog.Dialog();
@@ -265,7 +266,7 @@
         // of DevTools bounding element.
         container = document.createElement('div');
         container.style.width = `${CONTAINER_WIDTH}px`;
-        container.style.height = `${CONTAINER_WIDTH}px`;
+        container.style.height = `${CONTAINER_HEIGHT}px`;
         container.style.position = 'fixed';
         container.style.top = '0';
         container.style.left = '0';
@@ -318,7 +319,7 @@
            assert.strictEqual(dialogLeftBorderLimitPosition, CONTAINER_WIDTH);
            assert.strictEqual(
                dialog.clientHeight,
-               CONTAINER_WIDTH - Dialogs.Dialog.CONNECTOR_HEIGHT - HOST_HEIGHT - HOST_OFFSET +
+               CONTAINER_HEIGHT - Dialogs.Dialog.DIALOG_PADDING_FROM_WINDOW - HOST_HEIGHT - HOST_OFFSET +
                    2 * Dialogs.Dialog.DIALOG_VERTICAL_PADDING);
          });
       it('sets the max width and height correctly when the dialog\'s content dimensions exceed the viewport and the dialog is anchored to the right',
diff --git a/front_end/ui/components/dialogs/Dialog.ts b/front_end/ui/components/dialogs/Dialog.ts
index f170b82..e1ac469 100644
--- a/front_end/ui/components/dialogs/Dialog.ts
+++ b/front_end/ui/components/dialogs/Dialog.ts
@@ -149,13 +149,19 @@
   // still close the dialog.
   #onKeyDownBound = this.#onKeyDown.bind(this);
 
+  /**
+   * @deprecated
+   */
   get showConnector(): boolean {
+    console.assert(this.#props.showConnector === false);
     return this.#props.showConnector;
   }
 
-  set showConnector(showConnector: boolean) {
-    this.#props.showConnector = showConnector;
-    this.#onStateChange();
+  /**
+   * @deprecated
+   */
+  set showConnector(_showConnector: boolean) {
+    console.warn('Connector is no longer supported');
   }
 
   get origin(): DialogOrigin {
@@ -264,7 +270,6 @@
     this.#devtoolsMutationObserver.observe(this.#devToolsBoundingElement, {childList: true, subtree: true});
     this.#devToolsBoundingElement.addEventListener('wheel', this.#handleScrollAttemptBound);
     this.style.setProperty('--dialog-padding', '0');
-    this.style.setProperty('--override-content-box-shadow', 'none');
     this.style.setProperty('--dialog-display', IS_DIALOG_SUPPORTED ? 'block' : 'none');
     this.style.setProperty('--override-dialog-content-border', `${CONNECTOR_HEIGHT}px solid transparent`);
     this.style.setProperty('--dialog-padding', `${DIALOG_VERTICAL_PADDING}px ${DIALOG_SIDE_PADDING}px`);
@@ -452,9 +457,8 @@
             this.#bestVerticalPositionInternal === DialogVerticalPosition.AUTO) {
           return;
         }
-        this.#hitArea.height = anchorBottom - anchorTop + (CONNECTOR_HEIGHT * (this.showConnector ? 2 : 1));
+        this.#hitArea.height = anchorBottom - anchorTop + CONNECTOR_HEIGHT;
         this.#hitArea.width = hitAreaWidth;
-        let connectorRelativeXValue = 0;
         // If the connector is to be shown, the dialog needs a minimum width such that it covers
         // the connector's width.
         this.style.setProperty(
@@ -463,16 +467,14 @@
         this.style.setProperty('--dialog-left', 'auto');
         this.style.setProperty('--dialog-right', 'auto');
         this.style.setProperty('--dialog-margin', '0');
-        const offsetToCoverConnector = this.showConnector ? CONNECTOR_WIDTH * 3 / 4 : 0;
         switch (this.#bestHorizontalAlignment) {
           case DialogHorizontalAlignment.LEFT: {
             // Position the dialog such that its left border is in line with that of its anchor.
             // If this means the dialog's left border is out of DevTools bounds, move it to the right.
             // Cap its width as needed so that the right border doesn't overflow.
-            const dialogLeft = Math.max(anchorLeft - offsetToCoverConnector, devToolsLeft);
+            const dialogLeft = Math.max(anchorLeft, devToolsLeft);
             const devtoolsRightBorderToDialogLeft = devToolsRight - dialogLeft;
             const dialogMaxWidth = devtoolsRightBorderToDialogLeft - DIALOG_PADDING_FROM_WINDOW;
-            connectorRelativeXValue = connectorFixedXValue - dialogLeft - DIALOG_SIDE_PADDING;
             this.style.setProperty('--dialog-left', `${dialogLeft}px`);
             this.#hitArea.x = anchorLeft;
             this.style.setProperty('--dialog-max-width', `${dialogMaxWidth}px`);
@@ -485,15 +487,11 @@
             const windowRightBorderToAnchorRight = windowWidth - anchorRight;
             const windowRightBorderToDevToolsRight = windowWidth - devToolsRight;
             const windowRightBorderToDialogRight =
-                Math.max(windowRightBorderToAnchorRight - offsetToCoverConnector, windowRightBorderToDevToolsRight);
+                Math.max(windowRightBorderToAnchorRight, windowRightBorderToDevToolsRight);
 
             const dialogRight = windowWidth - windowRightBorderToDialogRight;
             const devtoolsLeftBorderToDialogRight = dialogRight - devToolsLeft;
             const dialogMaxWidth = devtoolsLeftBorderToDialogRight - DIALOG_PADDING_FROM_WINDOW;
-            const dialogCappedWidth = Math.min(dialogMaxWidth, dialogWidth);
-
-            const dialogLeft = dialogRight - dialogCappedWidth;
-            connectorRelativeXValue = connectorFixedXValue - dialogLeft;
 
             this.#hitArea.x = windowWidth - windowRightBorderToDialogRight - hitAreaWidth;
             this.style.setProperty('--dialog-right', `${windowRightBorderToDialogRight}px`);
@@ -508,7 +506,6 @@
 
             let dialogLeft = Math.max(originCenterX - dialogCappedWidth * 0.5, devToolsLeft);
             dialogLeft = Math.min(dialogLeft, devToolsRight - dialogCappedWidth);
-            connectorRelativeXValue = connectorFixedXValue - dialogLeft - DIALOG_SIDE_PADDING;
             this.style.setProperty('--dialog-left', `${dialogLeft}px`);
             this.#hitArea.x = originCenterX - hitAreaWidth * 0.5;
             this.style.setProperty('--dialog-max-width', `${devToolsWidth - DIALOG_PADDING_FROM_WINDOW}px`);
@@ -518,82 +515,25 @@
             Platform.assertNever(
                 this.#bestHorizontalAlignment, `Unknown alignment type: ${this.#bestHorizontalAlignment}`);
         }
-        const visibleConnectorHeight = this.showConnector ? CONNECTOR_HEIGHT : 0;
-        const clipPathConnectorStartX = connectorRelativeXValue - CONNECTOR_WIDTH / 2;
-        const clipPathConnectorEndX = connectorRelativeXValue + CONNECTOR_WIDTH / 2;
-        let [p1, p2, p3, p4, p5, p6, p7, p8, p9] = ['', '', '', '', '', '', '', '', '', ''];
 
-        const PSEUDO_BORDER_RADIUS = 2;
         switch (this.#bestVerticalPositionInternal) {
           case DialogVerticalPosition.TOP: {
-            //  p1                              p2
-            //   *-----------------------------*
-            //   |                             |
-            //   |                             |
-            // p9|                             |
-            //    \__________________p7  p5____/ p3 <-- A pseudo curve is added to the clip path to
-            //  p8                     \/      p4        imitate a curved boder.
-            //                         p6
-            //   |-connectorRelativeX--|
-            const clipPathBottom = `calc(100% - ${CONNECTOR_HEIGHT}px)`;
-            if (this.#props.showConnector) {
-              p1 = '0 0';
-              p2 = '100% 0';
-              p3 = `100% calc(${clipPathBottom} - ${PSEUDO_BORDER_RADIUS}px)`;
-              p4 = `calc(100% - ${PSEUDO_BORDER_RADIUS}px) ${clipPathBottom}`;
-              p5 = `${clipPathConnectorStartX}px ${clipPathBottom}`;
-              p6 = `${connectorRelativeXValue}px 100%`;
-              p7 = `${clipPathConnectorEndX}px ${clipPathBottom}`;
-              p8 = `${PSEUDO_BORDER_RADIUS}px ${clipPathBottom}`;
-              p9 = `0 calc(${clipPathBottom} - ${PSEUDO_BORDER_RADIUS}px)`;
-            }
-
-            this.style.setProperty(
-                '--content-padding-bottom',
-                `${CONNECTOR_HEIGHT + (this.#props.showConnector ? CONNECTOR_HEIGHT : 0)}px`);
-            this.style.setProperty('--content-padding-top', `${CONNECTOR_HEIGHT}px`);
             this.style.setProperty('--dialog-top', '0');
             this.style.setProperty('--dialog-margin', 'auto');
             this.style.setProperty('--dialog-margin-bottom', `${innerHeight - anchorTop}px`);
-            this.#hitArea.y = anchorTop - (CONNECTOR_HEIGHT * (this.showConnector ? 2 : 1));
+            this.#hitArea.y = anchorTop - CONNECTOR_HEIGHT;
             this.style.setProperty('--dialog-offset-y', `${DIALOG_ANIMATION_OFFSET}px`);
             this.style.setProperty(
-                '--dialog-max-height',
-                `${
-                    devToolsHeight - (innerHeight - anchorTop) - DIALOG_PADDING_FROM_WINDOW -
-                    visibleConnectorHeight}px`);
+                '--dialog-max-height', `${devToolsHeight - (innerHeight - anchorTop) - DIALOG_PADDING_FROM_WINDOW}px`);
             break;
           }
           case DialogVerticalPosition.BOTTOM: {
-            //                p4
-            //     p2_________/\_________p6
-            //     /        p3  p5        \
-            // p1 |                        | p7
-            //    |                        |
-            // p9 *________________________* p8
-
-            if (this.#props.showConnector) {
-              p1 = `0 ${CONNECTOR_HEIGHT + PSEUDO_BORDER_RADIUS}px`;
-              p2 = `${PSEUDO_BORDER_RADIUS}px ${CONNECTOR_HEIGHT}px`;
-              p3 = `${clipPathConnectorStartX}px ${CONNECTOR_HEIGHT}px`;
-              p4 = `${connectorRelativeXValue}px 0`;
-              p5 = `${clipPathConnectorEndX}px ${CONNECTOR_HEIGHT}px`;
-              p6 = `calc(100% - ${PSEUDO_BORDER_RADIUS}px) ${CONNECTOR_HEIGHT}px`;
-              p7 = `100% ${CONNECTOR_HEIGHT + PSEUDO_BORDER_RADIUS}px`;
-              p8 = '100% 100%';
-              p9 = '0 100%';
-            }
-            this.style.setProperty(
-                '--content-padding-top', `${CONNECTOR_HEIGHT + (this.#props.showConnector ? CONNECTOR_HEIGHT : 0)}px`);
-            this.style.setProperty('--content-padding-bottom', `${CONNECTOR_HEIGHT}px`);
             this.style.setProperty('--dialog-top', `${anchorBottom}px`);
             this.#hitArea.y = anchorTop;
             this.style.setProperty('--dialog-offset-y', `-${DIALOG_ANIMATION_OFFSET}px`);
             this.style.setProperty(
                 '--dialog-max-height',
-                `${
-                    devToolsHeight - (anchorBottom - devToolsTop) - DIALOG_PADDING_FROM_WINDOW -
-                    visibleConnectorHeight}px`);
+                `${devToolsHeight - (anchorBottom - devToolsTop) - DIALOG_PADDING_FROM_WINDOW}px`);
             break;
           }
           default:
@@ -601,9 +541,6 @@
                 this.#bestVerticalPositionInternal, `Unknown position type: ${this.#bestVerticalPositionInternal}`);
         }
 
-        const clipPath = [p1, p2, p3, p4, p5, p6, p7, p8, p9].join();
-
-        this.style.setProperty('--content-clip-path', clipPath);
         dialog.close();
         dialog.style.visibility = '';
       });
diff --git a/front_end/ui/components/dialogs/dialog.css b/front_end/ui/components/dialogs/dialog.css
index 339917f..1798a6f 100644
--- a/front_end/ui/components/dialogs/dialog.css
+++ b/front_end/ui/components/dialogs/dialog.css
@@ -40,14 +40,10 @@
   min-width: var(--content-min-width);
   background: var(--color-background-elevation-dark-only);
   border-radius: var(--sys-size-5);
-  padding-top: var(--content-padding-top);
-  padding-bottom: var(--content-padding-bottom);
-  box-shadow: var(--override-content-box-shadow);
   max-height: var(--dialog-max-height);
   max-width: var(--dialog-max-width);
   overflow: auto;
   outline: none;
-  clip-path: polygon(var(--content-clip-path));
 }
 
 .dialog-header {
diff --git a/front_end/ui/components/docs/dialog/basic.ts b/front_end/ui/components/docs/dialog/basic.ts
index 358f741..d082fc9 100644
--- a/front_end/ui/components/docs/dialog/basic.ts
+++ b/front_end/ui/components/docs/dialog/basic.ts
@@ -9,7 +9,6 @@
 await ComponentHelpers.ComponentServerSetup.setup();
 await FrontendHelpers.initializeGlobalVars();
 
-const showConnectors = [true, false];
 const verticalPositions = [Dialogs.Dialog.DialogVerticalPosition.TOP, Dialogs.Dialog.DialogVerticalPosition.BOTTOM];
 const horizontalAlignments = [
   Dialogs.Dialog.DialogHorizontalAlignment.AUTO,
@@ -22,7 +21,6 @@
 const root = document.getElementById('root') as HTMLElement;
 
 let i = 0;
-for (const showConnector of showConnectors) {
   for (const verticalPosition of verticalPositions) {
     const row = document.createElement('div');
     row.classList.add('row');
@@ -44,7 +42,6 @@
 
       dialog.position = verticalPosition;
       dialog.horizontalAlignment = horizontalAlignment;
-      dialog.showConnector = showConnector;
       dialog.origin = host;
       dialog.id = `dialog-${i}`;
 
@@ -58,12 +55,11 @@
       const div = document.createElement('div');
       div.classList.add('dialog-content');
       div.style.padding = '0 1em';
-      div.innerHTML = `Hello, World<br/>Show connector: ${showConnector}<br/>Vertical position: ${
-          verticalPosition}<br/>Horizontal alignment: ${horizontalAlignment}`;
+      div.innerHTML =
+          `Hello, World<br/>Vertical position: ${verticalPosition}<br/>Horizontal alignment: ${horizontalAlignment}`;
       dialog.appendChild(div);
       root.appendChild(dialog);
       i++;
-    }
   }
 }
 
@@ -88,7 +84,6 @@
 
     dialog.position = verticalPosition;
     dialog.horizontalAlignment = horizontalAlignment;
-    dialog.showConnector = true;
     dialog.origin = host;
     dialog.id = `dialog-${i}`;
 
@@ -148,6 +143,7 @@
     });
     const div = document.createElement('div');
     div.classList.add('dialog-content');
+    div.style.padding = '0 var(--sys-size-8)';
 
     div.innerHTML = 'Hello, World';
     dialog.appendChild(div);
diff --git a/test/interactions/goldens/linux/dialog/bottom-auto-open.png b/test/interactions/goldens/linux/dialog/bottom-auto-open.png
index e62df1f..d19328f 100644
--- a/test/interactions/goldens/linux/dialog/bottom-auto-open.png
+++ b/test/interactions/goldens/linux/dialog/bottom-auto-open.png
Binary files differ
diff --git a/test/interactions/goldens/linux/dialog/bottom-center-open.png b/test/interactions/goldens/linux/dialog/bottom-center-open.png
index a170934..50e779d 100644
--- a/test/interactions/goldens/linux/dialog/bottom-center-open.png
+++ b/test/interactions/goldens/linux/dialog/bottom-center-open.png
Binary files differ
diff --git a/test/interactions/goldens/linux/dialog/button_dialog_open.png b/test/interactions/goldens/linux/dialog/button_dialog_open.png
index dd71e04..3c6b63a 100644
--- a/test/interactions/goldens/linux/dialog/button_dialog_open.png
+++ b/test/interactions/goldens/linux/dialog/button_dialog_open.png
Binary files differ
diff --git a/test/interactions/goldens/linux/dialog/narrow-top-auto-open.png b/test/interactions/goldens/linux/dialog/narrow-top-auto-open.png
index d069edc..d96158f 100644
--- a/test/interactions/goldens/linux/dialog/narrow-top-auto-open.png
+++ b/test/interactions/goldens/linux/dialog/narrow-top-auto-open.png
Binary files differ
diff --git a/test/interactions/goldens/linux/dialog/shortcut_dialog_open.png b/test/interactions/goldens/linux/dialog/shortcut_dialog_open.png
index ec85798..fcf10cd 100644
--- a/test/interactions/goldens/linux/dialog/shortcut_dialog_open.png
+++ b/test/interactions/goldens/linux/dialog/shortcut_dialog_open.png
Binary files differ
diff --git a/test/interactions/goldens/linux/dialog/top-left-open.png b/test/interactions/goldens/linux/dialog/top-left-open.png
index 26f8aa3..7f6df76 100644
--- a/test/interactions/goldens/linux/dialog/top-left-open.png
+++ b/test/interactions/goldens/linux/dialog/top-left-open.png
Binary files differ
diff --git a/test/interactions/goldens/linux/icon_dialog/icon_dialog_open.png b/test/interactions/goldens/linux/icon_dialog/icon_dialog_open.png
index 864a6e6..32bb234 100644
--- a/test/interactions/goldens/linux/icon_dialog/icon_dialog_open.png
+++ b/test/interactions/goldens/linux/icon_dialog/icon_dialog_open.png
Binary files differ
diff --git a/test/interactions/goldens/linux/select_menu/select_menu.png b/test/interactions/goldens/linux/select_menu/select_menu.png
new file mode 100644
index 0000000..256d617
--- /dev/null
+++ b/test/interactions/goldens/linux/select_menu/select_menu.png
Binary files differ
diff --git a/test/interactions/goldens/linux/select_menu/select_menu_with_connector.png b/test/interactions/goldens/linux/select_menu/select_menu_with_connector.png
deleted file mode 100644
index d90173a..0000000
--- a/test/interactions/goldens/linux/select_menu/select_menu_with_connector.png
+++ /dev/null
Binary files differ
diff --git a/test/interactions/goldens/linux/select_menu/select_menu_with_groups.png b/test/interactions/goldens/linux/select_menu/select_menu_with_groups.png
index 7ee42ee..96759a0 100644
--- a/test/interactions/goldens/linux/select_menu/select_menu_with_groups.png
+++ b/test/interactions/goldens/linux/select_menu/select_menu_with_groups.png
Binary files differ
diff --git a/test/interactions/goldens/mac/select_menu/select_menu_with_connector.png b/test/interactions/goldens/mac/select_menu/select_menu_with_connector.png
deleted file mode 100644
index 0215210..0000000
--- a/test/interactions/goldens/mac/select_menu/select_menu_with_connector.png
+++ /dev/null
Binary files differ
diff --git a/test/interactions/goldens/win32/select_menu/select_menu_with_connector.png b/test/interactions/goldens/win32/select_menu/select_menu_with_connector.png
deleted file mode 100644
index 99a9054..0000000
--- a/test/interactions/goldens/win32/select_menu/select_menu_with_connector.png
+++ /dev/null
Binary files differ
diff --git a/test/interactions/ui/components/SelectMenu_test.ts b/test/interactions/ui/components/SelectMenu_test.ts
index db19e50..e6acc69 100644
--- a/test/interactions/ui/components/SelectMenu_test.ts
+++ b/test/interactions/ui/components/SelectMenu_test.ts
@@ -308,7 +308,7 @@
 
   itScreenshot('renders a menu with a connector', async () => {
     await loadComponentDocExample('select_menu/basic.html');
-    await testScreenshotOnPlaceholder('#place-holder-3', 'select_menu/select_menu_with_connector.png');
+    await testScreenshotOnPlaceholder('#place-holder-3', 'select_menu/select_menu.png');
   });
 
   itScreenshot('renders a menu with groups', async () => {