Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 172 insertions, 0 deletions

diff --git a/toolkit/components/tooltiptext/TooltipTextProvider.sys.mjs b/toolkit/components/tooltiptext/TooltipTextProvider.sys.mjs
new file mode 100644
index 0000000000..0ddd594cb6
--- /dev/null
+++ b/toolkit/components/tooltiptext/TooltipTextProvider.sys.mjs
@@ -0,0 +1,172 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+export function TooltipTextProvider() {}
+
+TooltipTextProvider.prototype = {
+  getNodeText(tipElement, textOut, directionOut) {
+    // Don't show the tooltip if the tooltip node is a document or browser.
+    // Caller should ensure the node is in (composed) document.
+    if (
+      !tipElement ||
+      !tipElement.ownerDocument ||
+      tipElement.localName == "browser"
+    ) {
+      return false;
+    }
+
+    var defView = tipElement.ownerGlobal;
+    // XXX Work around bug 350679:
+    // "Tooltips can be fired in documents with no view".
+    if (!defView) {
+      return false;
+    }
+
+    const XLinkNS = "http://www.w3.org/1999/xlink";
+    const XUL_NS =
+      "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
+
+    var titleText = null;
+    var XLinkTitleText = null;
+    var SVGTitleText = null;
+    var XULtooltiptextText = null;
+    var lookingForSVGTitle = true;
+    var direction = tipElement.ownerDocument.dir;
+
+    // If the element is invalid per HTML5 Forms specifications and has no title,
+    // show the constraint validation error message.
+    if (
+      (defView.HTMLInputElement.isInstance(tipElement) ||
+        defView.HTMLTextAreaElement.isInstance(tipElement) ||
+        defView.HTMLSelectElement.isInstance(tipElement) ||
+        defView.HTMLButtonElement.isInstance(tipElement)) &&
+      !tipElement.hasAttribute("title") &&
+      (!tipElement.form || !tipElement.form.noValidate)
+    ) {
+      // If the element is barred from constraint validation or valid,
+      // the validation message will be the empty string.
+      titleText = tipElement.validationMessage || null;
+    }
+
+    // If the element is an <input type='file'> without a title, we should show
+    // the current file selection.
+    if (
+      !titleText &&
+      defView.HTMLInputElement.isInstance(tipElement) &&
+      tipElement.type == "file" &&
+      !tipElement.hasAttribute("title")
+    ) {
+      let files = tipElement.files;
+
+      try {
+        var bundle = Services.strings.createBundle(
+          "chrome://global/locale/layout/HtmlForm.properties"
+        );
+        if (!files.length) {
+          if (tipElement.multiple) {
+            titleText = bundle.GetStringFromName("NoFilesSelected");
+          } else {
+            titleText = bundle.GetStringFromName("NoFileSelected");
+          }
+        } else {
+          titleText = files[0].name;
+          // For UX and performance (jank) reasons we cap the number of
+          // files that we list in the tooltip to 20 plus a "and xxx more"
+          // line, or to 21 if exactly 21 files were picked.
+          const TRUNCATED_FILE_COUNT = 20;
+          let count = Math.min(files.length, TRUNCATED_FILE_COUNT);
+          for (let i = 1; i < count; ++i) {
+            titleText += "\n" + files[i].name;
+          }
+          if (files.length == TRUNCATED_FILE_COUNT + 1) {
+            titleText += "\n" + files[TRUNCATED_FILE_COUNT].name;
+          } else if (files.length > TRUNCATED_FILE_COUNT + 1) {
+            const l10n = new Localization(
+              ["toolkit/global/htmlForm.ftl"],
+              true
+            );
+            const andXMoreStr = l10n.formatValueSync(
+              "input-file-and-more-files",
+              { fileCount: files.length - TRUNCATED_FILE_COUNT }
+            );
+            titleText += "\n" + andXMoreStr;
+          }
+        }
+      } catch (e) {}
+    }
+
+    // Check texts against null so that title="" can be used to undefine a
+    // title on a child element.
+    let usedTipElement = null;
+    while (
+      tipElement &&
+      titleText == null &&
+      XLinkTitleText == null &&
+      SVGTitleText == null &&
+      XULtooltiptextText == null
+    ) {
+      if (tipElement.nodeType == defView.Node.ELEMENT_NODE) {
+        if (tipElement.namespaceURI == XUL_NS) {
+          XULtooltiptextText = tipElement.hasAttribute("tooltiptext")
+            ? tipElement.getAttribute("tooltiptext")
+            : null;
+        } else if (!defView.SVGElement.isInstance(tipElement)) {
+          titleText = tipElement.getAttribute("title");
+        }
+
+        if (
+          (defView.HTMLAnchorElement.isInstance(tipElement) ||
+            defView.HTMLAreaElement.isInstance(tipElement) ||
+            defView.HTMLLinkElement.isInstance(tipElement) ||
+            defView.SVGAElement.isInstance(tipElement)) &&
+          tipElement.href
+        ) {
+          XLinkTitleText = tipElement.getAttributeNS(XLinkNS, "title");
+        }
+        if (
+          lookingForSVGTitle &&
+          (!defView.SVGElement.isInstance(tipElement) ||
+            tipElement.parentNode.nodeType == defView.Node.DOCUMENT_NODE)
+        ) {
+          lookingForSVGTitle = false;
+        }
+        if (lookingForSVGTitle) {
+          for (let childNode of tipElement.childNodes) {
+            if (defView.SVGTitleElement.isInstance(childNode)) {
+              SVGTitleText = childNode.textContent;
+              break;
+            }
+          }
+        }
+
+        usedTipElement = tipElement;
+      }
+
+      tipElement = tipElement.flattenedTreeParentNode;
+    }
+
+    return [titleText, XLinkTitleText, SVGTitleText, XULtooltiptextText].some(
+      function (t) {
+        if (t && /\S/.test(t)) {
+          // Make CRLF and CR render one line break each.
+          textOut.value = t.replace(/\r\n?/g, "\n");
+
+          if (usedTipElement) {
+            direction = defView
+              .getComputedStyle(usedTipElement)
+              .getPropertyValue("direction");
+          }
+
+          directionOut.value = direction;
+          return true;
+        }
+
+        return false;
+      }
+    );
+  },
+
+  classID: Components.ID("{f376627f-0bbc-47b8-887e-fc92574cc91f}"),
+  QueryInterface: ChromeUtils.generateQI(["nsITooltipTextProvider"]),
+};