1 files changed, 156 insertions, 7 deletions
diff --git a/dom/events/test/clipboard/browser_navigator_clipboard_contextmenu_suppression.js b/dom/events/test/clipboard/browser_navigator_clipboard_contextmenu_suppression.js
index f504e499c9..97066cd2eb 100644
--- a/dom/events/test/clipboard/browser_navigator_clipboard_contextmenu_suppression.js
+++ b/dom/events/test/clipboard/browser_navigator_clipboard_contextmenu_suppression.js
@@ -238,16 +238,10 @@ add_task(async function test_context_menu_suppression_image() {
     await pasteButtonIsShown;
 
     info("Test read from same-origin frame before paste contextmenu is closed");
-    const clipboarCacheEnabled = SpecialPowers.getBoolPref(
-      "widget.clipboard.use-cached-data.enabled",
-      false
-    );
     // If the cached data is used, it uses type order in cached transferable.
     SimpleTest.isDeeply(
       await readTypes(browser.browsingContext.children[0]),
-      clipboarCacheEnabled
-        ? ["text/plain", "text/html", "image/png"]
-        : ["text/html", "text/plain", "image/png"],
+      ["text/html", "text/plain", "image/png"],
       "read from same-origin should just be resolved without showing paste contextmenu shown"
     );
 
@@ -262,3 +256,158 @@ add_task(async function test_context_menu_suppression_image() {
     );
   });
 });
+
+function testPasteContextMenuSuppressionPasteEvent(
+  aTriggerPasteFun,
+  aSuppress,
+  aMsg
+) {
+  add_task(async function test_context_menu_suppression_paste_event() {
+    await BrowserTestUtils.withNewTab(
+      kContentFileUrl,
+      async function (browser) {
+        info(`Write data by in cross-origin frame`);
+        const clipboardText = "X" + Math.random();
+        await SpecialPowers.spawn(
+          browser.browsingContext.children[1],
+          [clipboardText],
+          async text => {
+            content.document.notifyUserGestureActivation();
+            return content.eval(`navigator.clipboard.writeText("${text}");`);
+          }
+        );
+
+        info("Test read should show contextmenu");
+        let pasteButtonIsShown = waitForPasteContextMenu();
+        let readTextRequest = readText(browser);
+        await pasteButtonIsShown;
+
+        info("Click paste button, request should be resolved");
+        await promiseClickPasteButton();
+        is(await readTextRequest, clipboardText, "Request should be resolved");
+
+        info("Test read in paste event handler");
+        readTextRequest = SpecialPowers.spawn(browser, [], async () => {
+          content.document.notifyUserGestureActivation();
+          return content.eval(`
+          (() => {
+            return new Promise(resolve => {
+              document.addEventListener("paste", function(e) {
+                e.preventDefault();
+                resolve(navigator.clipboard.readText());
+              }, { once: true });
+            });
+          })();
+        `);
+        });
+
+        if (aSuppress) {
+          let listener = function (e) {
+            if (e.target.getAttribute("id") == kPasteMenuPopupId) {
+              ok(!aSuppress, "paste contextmenu should not be shown");
+            }
+          };
+          document.addEventListener("popupshown", listener);
+          info(`Trigger paste event by ${aMsg}`);
+          // trigger paste event
+          await aTriggerPasteFun(browser);
+          is(
+            await readTextRequest,
+            clipboardText,
+            "Request should be resolved"
+          );
+          document.removeEventListener("popupshown", listener);
+        } else {
+          let pasteButtonIsShown = waitForPasteContextMenu();
+          info(
+            `Trigger paste event by ${aMsg}, read should still show contextmenu`
+          );
+          // trigger paste event
+          await aTriggerPasteFun(browser);
+          await pasteButtonIsShown;
+
+          info("Click paste button, request should be resolved");
+          await promiseClickPasteButton();
+          is(
+            await readTextRequest,
+            clipboardText,
+            "Request should be resolved"
+          );
+        }
+
+        info("Test read should still show contextmenu");
+        pasteButtonIsShown = waitForPasteContextMenu();
+        readTextRequest = readText(browser);
+        await pasteButtonIsShown;
+
+        info("Click paste button, request should be resolved");
+        await promiseClickPasteButton();
+        is(await readTextRequest, clipboardText, "Request should be resolved");
+      }
+    );
+  });
+}
+
+// If platform supports selection clipboard, the middle click paste the content
+// from selection clipboard instead, in such case, we don't suppress the
+// contextmenu when access global clipboard via async clipboard API.
+if (
+  !Services.clipboard.isClipboardTypeSupported(
+    Services.clipboard.kSelectionClipboard
+  )
+) {
+  testPasteContextMenuSuppressionPasteEvent(
+    async browser => {
+      await SpecialPowers.pushPrefEnv({
+        set: [["middlemouse.paste", true]],
+      });
+
+      await SpecialPowers.spawn(browser, [], async () => {
+        EventUtils.synthesizeMouse(
+          content.document.documentElement,
+          1,
+          1,
+          { button: 1 },
+          content.window
+        );
+      });
+    },
+    true,
+    "middle click"
+  );
+}
+
+testPasteContextMenuSuppressionPasteEvent(
+  async browser => {
+    await EventUtils.synthesizeAndWaitKey(
+      "v",
+      kIsMac ? { accelKey: true } : { ctrlKey: true }
+    );
+  },
+  true,
+  "keyboard shortcut"
+);
+
+testPasteContextMenuSuppressionPasteEvent(
+  async browser => {
+    await SpecialPowers.spawn(browser, [], async () => {
+      return SpecialPowers.doCommand(content.window, "cmd_paste");
+    });
+  },
+  true,
+  "paste command"
+);
+
+testPasteContextMenuSuppressionPasteEvent(
+  async browser => {
+    await SpecialPowers.spawn(browser, [], async () => {
+      let div = content.document.createElement("div");
+      div.setAttribute("contenteditable", "true");
+      content.document.documentElement.appendChild(div);
+      div.focus();
+      return SpecialPowers.doCommand(content.window, "cmd_pasteNoFormatting");
+    });
+  },
+  false,
+  "pasteNoFormatting command"
+);