:art: https://github.com/siyuan-note/siyuan/issues/11275

app/src/assets/scss/base.scss

@@ -52,8 +52,6 @@ Mobile #menu & .side-panel: 7
 
 #windowControls: 999998
 
-.b3-snackbar: 999999
-
 .b3-tooltips: 1000000
 */
 

app/src/assets/scss/component/_snackbar.scss

@@ -12,7 +12,7 @@
     position: fixed;
     right: 12px;
     top: 22px;
-    z-index: 999999;
+    // 不能设置死，否则右键菜单会被遮盖 z-index: 999999;
     max-height: calc(100vh - 32px);
     display: flex;
     flex-direction: column;

app/src/dialog/message.ts

@@ -46,7 +46,7 @@ export const showMessage = (message: string, timeout = 6000, type = "info", mess
     const messageVersion = message + (type === "error" ? " v" + Constants.SIYUAN_VERSION : "");
     if (existElement) {
         window.clearTimeout(parseInt(existElement.getAttribute("data-timeoutid")));
-        existElement.innerHTML = `<div class="b3-snackbar__content${timeout === 0 ? " b3-snackbar__content--close" : ""}">${messageVersion}</div>${timeout === 0 ? '<svg class="b3-snackbar__close"><use xlink:href="#iconCloseRound"></use></svg>' : ""}`;
+        existElement.innerHTML = `<div data-type="textMenu" class="b3-snackbar__content${timeout === 0 ? " b3-snackbar__content--close" : ""}">${messageVersion}</div>${timeout === 0 ? '<svg class="b3-snackbar__close"><use xlink:href="#iconCloseRound"></use></svg>' : ""}`;
         if (type === "error") {
             existElement.classList.add("b3-snackbar--error");
         } else {
@@ -60,7 +60,7 @@ export const showMessage = (message: string, timeout = 6000, type = "info", mess
         }
         return;
     }
-    let messageHTML = `<div data-id="${id}" class="b3-snackbar--hide b3-snackbar${type === "error" ? " b3-snackbar--error" : ""}"><div class="b3-snackbar__content${timeout === 0 ? " b3-snackbar__content--close" : ""}">${messageVersion}</div>`;
+    let messageHTML = `<div data-id="${id}" class="b3-snackbar--hide b3-snackbar${type === "error" ? " b3-snackbar--error" : ""}"><div data-type="textMenu" class="b3-snackbar__content${timeout === 0 ? " b3-snackbar__content--close" : ""}">${messageVersion}</div>`;
     if (timeout === 0) {
         messageHTML += '<svg class="b3-snackbar__close"><use xlink:href="#iconCloseRound"></use></svg>';
     } else if (timeout !== -1) { // -1 时需等待请求完成后手动关闭
@@ -70,6 +70,7 @@ export const showMessage = (message: string, timeout = 6000, type = "info", mess
         messageHTML = messageHTML.replace("<div data-id", `<div data-timeoutid="${timeoutId}" data-id`);
     }
     messagesElement.parentElement.classList.add("b3-snackbars--show");
+    messagesElement.parentElement.style.zIndex = (++window.siyuan.zIndex).toString();
     messagesElement.insertAdjacentHTML("afterbegin", messageHTML + "</div>");
     setTimeout(() => {
         messagesElement.querySelectorAll(".b3-snackbar--hide").forEach(item => {

app/src/menus/index.ts

@@ -13,6 +13,7 @@ import {Menu} from "./Menu";
 import {hasClosestByClassName, hasTopClosestByTag} from "../protyle/util/hasClosest";
 import {App} from "../index";
 import {Constants} from "../constants";
+import {textMenu} from "./text";
 
 
 export class Menus {
@@ -89,7 +90,15 @@ export class Menus {
                     initDockMenu(target).popup({x: event.clientX, y: event.clientY});
                     event.stopPropagation();
                     break;
+                } else if (dataType === "textMenu") {
+                    /// #if !BROWSER
+                    textMenu(target).open({x: event.clientX, y: event.clientY});
+                    event.stopPropagation();
+                    event.preventDefault();
+                    break;
+                    /// #endif
                 }
+
                 target = target.parentElement;
             }
         }, false);

app/src/menus/text.ts

@@ -0,0 +1,26 @@
+import {Menu} from "../plugin/Menu";
+
+export const textMenu = (target: Element) => {
+    const menu = new Menu();
+    if (menu.isOpen) {
+        return;
+    }
+    menu.addItem({
+        label: window.siyuan.languages.copy,
+        icon: "iconCopy",
+        click() {
+            document.execCommand("copy");
+        }
+    })
+    menu.addItem({
+        label: window.siyuan.languages.selectAll,
+        icon: "iconSelect",
+        click() {
+            if (getSelection().rangeCount === 0) {
+                return;
+            }
+            getSelection().getRangeAt(0).selectNode(target)
+        }
+    })
+    return menu
+}

app/src/menus/util.ts

@@ -31,7 +31,6 @@ export const exportAsset = (src: string) => {
     /// #endif
 };
 
-
 export const openEditorTab = (app: App, ids: string[], notebookId?: string, pathString?: string) => {
     /// #if !MOBILE
     const openSubmenus: IMenu[] = [{