Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

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

1 files changed, 466 insertions, 0 deletions

diff --git a/comm/mailnews/db/gloda/content/glodacomplete.js b/comm/mailnews/db/gloda/content/glodacomplete.js
new file mode 100644
index 0000000000..64578d4143
--- /dev/null
+++ b/comm/mailnews/db/gloda/content/glodacomplete.js
@@ -0,0 +1,466 @@
+/* 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/. */
+
+/* globals MozElements, MozXULElement */
+
+"use strict";
+
+// Wrap in a block to prevent leaking to window scope.
+{
+  const MozPopupElement = MozElements.MozElementMixin(XULPopupElement);
+
+  /**
+   * The MozGlodacompleteRichResultPopup class creates the panel
+   * to append all the results for the gloda search autocomplete.
+   *
+   * @augments {MozPopupElement}
+   */
+  class MozGlodacompleteRichResultPopup extends MozPopupElement {
+    constructor() {
+      super();
+
+      this.addEventListener("popupshowing", event => {
+        // If normalMaxRows wasn't already set by the input, then set it here
+        // so that we restore the correct number when the popup is hidden.
+
+        // Null-check this.mInput; see bug 1017914
+        if (this._normalMaxRows < 0 && this.mInput) {
+          this._normalMaxRows = this.mInput.maxRows;
+        }
+
+        this.mPopupOpen = true;
+      });
+
+      this.addEventListener("popupshown", event => {
+        if (this._adjustHeightOnPopupShown) {
+          delete this._adjustHeightOnPopupShown;
+          this.adjustHeight();
+        }
+      });
+
+      this.addEventListener("popuphiding", event => {
+        let isListActive = true;
+        if (this.selectedIndex == -1) {
+          isListActive = false;
+        }
+        this.mInput.controller.stopSearch();
+        this.mPopupOpen = false;
+
+        // Reset the maxRows property to the cached "normal" value (if there's
+        // any), and reset normalMaxRows so that we can detect whether it was set
+        // by the input when the popupshowing handler runs.
+
+        // Null-check this.mInput; see bug 1017914
+        if (this.mInput && this._normalMaxRows > 0) {
+          this.mInput.maxRows = this._normalMaxRows;
+        }
+        this._normalMaxRows = -1;
+        // If the list was being navigated and then closed, make sure
+        // we fire accessible focus event back to textbox
+
+        // Null-check this.mInput; see bug 1017914
+        if (isListActive && this.mInput) {
+          this.mInput.mIgnoreFocus = true;
+          this.mInput._focus();
+          this.mInput.mIgnoreFocus = false;
+        }
+      });
+
+      this.attachShadow({ mode: "open" });
+
+      let slot = document.createElement("slot");
+      slot.part = "content";
+      this.shadowRoot.appendChild(slot);
+    }
+
+    connectedCallback() {
+      if (this.delayConnectedCallback()) {
+        return;
+      }
+      this.textContent = "";
+
+      this.mInput = null;
+
+      this.mPopupOpen = false;
+
+      this._currentIndex = 0;
+
+      /**
+       * This is the default number of rows that we give the autocomplete
+       * popup when the textbox doesn't have a "maxrows" attribute
+       * for us to use.
+       */
+      this.defaultMaxRows = 6;
+
+      /**
+       * In some cases (e.g. when the input's dropmarker button is clicked),
+       * the input wants to display a popup with more rows. In that case, it
+       * should increase its maxRows property and store the "normal" maxRows
+       * in this field. When the popup is hidden, we restore the input's
+       * maxRows to the value stored in this field.
+       *
+       * This field is set to -1 between uses so that we can tell when it's
+       * been set by the input and when we need to set it in the popupshowing
+       * handler.
+       */
+      this._normalMaxRows = -1;
+
+      this._previousSelectedIndex = -1;
+
+      this.mLastMoveTime = Date.now();
+
+      this.mousedOverIndex = -1;
+
+      this.richlistbox = document.createXULElement("richlistbox");
+      this.richlistbox.setAttribute("flex", "1");
+      this.richlistbox.classList.add("autocomplete-richlistbox");
+
+      this.appendChild(this.richlistbox);
+
+      if (!this.listEvents) {
+        this.listEvents = {
+          handleEvent: event => {
+            if (!this.parentNode) {
+              return;
+            }
+
+            switch (event.type) {
+              case "mouseup":
+                // Don't call onPopupClick for the scrollbar buttons, thumb,
+                // slider, etc. If we hit the richlistbox and not a
+                // richlistitem, we ignore the event.
+                if (
+                  event.target.closest("richlistbox, richlistitem").localName ==
+                  "richlistitem"
+                ) {
+                  this.onPopupClick(event);
+                }
+                break;
+              case "mousemove":
+                if (Date.now() - this.mLastMoveTime <= 30) {
+                  return;
+                }
+
+                let item = event.target.closest("richlistbox, richlistitem");
+
+                // If we hit the richlistbox and not a richlistitem, we ignore
+                // the event.
+                if (item.localName == "richlistbox") {
+                  return;
+                }
+
+                let index = this.richlistbox.getIndexOfItem(item);
+
+                this.mousedOverIndex = index;
+
+                if (item.selectedByMouseOver) {
+                  this.richlistbox.selectedIndex = index;
+                }
+
+                this.mLastMoveTime = Date.now();
+                break;
+            }
+          },
+        };
+        this.richlistbox.addEventListener("mouseup", this.listEvents);
+        this.richlistbox.addEventListener("mousemove", this.listEvents);
+      }
+    }
+
+    // nsIAutoCompletePopup
+    get input() {
+      return this.mInput;
+    }
+
+    get overrideValue() {
+      return null;
+    }
+
+    get popupOpen() {
+      return this.mPopupOpen;
+    }
+
+    get maxRows() {
+      return (this.mInput && this.mInput.maxRows) || this.defaultMaxRows;
+    }
+
+    set selectedIndex(val) {
+      if (val != this.richlistbox.selectedIndex) {
+        this._previousSelectedIndex = this.richlistbox.selectedIndex;
+      }
+      this.richlistbox.selectedIndex = val;
+      // Since ensureElementIsVisible may cause an expensive Layout flush,
+      // invoke it only if there may be a scrollbar, so if we could fetch
+      // more results than we can show at once.
+      // maxResults is the maximum number of fetched results, maxRows is the
+      // maximum number of rows we show at once, without a scrollbar.
+      if (this.mPopupOpen && this.maxResults > this.maxRows) {
+        // when clearing the selection (val == -1, so selectedItem will be
+        // null), we want to scroll back to the top.  see bug #406194
+        this.richlistbox.ensureElementIsVisible(
+          this.richlistbox.selectedItem || this.richlistbox.firstElementChild
+        );
+      }
+    }
+
+    get selectedIndex() {
+      return this.richlistbox.selectedIndex;
+    }
+
+    get maxResults() {
+      // This is how many richlistitems will be kept around.
+      // Note, this getter may be overridden, or instances
+      // can have the nomaxresults attribute set to have no
+      // limit.
+      if (this.getAttribute("nomaxresults") == "true") {
+        return Infinity;
+      }
+
+      return 20;
+    }
+
+    get matchCount() {
+      return Math.min(this.mInput.controller.matchCount, this.maxResults);
+    }
+
+    get overflowPadding() {
+      return Number(this.getAttribute("overflowpadding"));
+    }
+
+    set view(val) {}
+
+    get view() {
+      return this.mInput.controller;
+    }
+
+    closePopup() {
+      if (this.mPopupOpen) {
+        this.hidePopup();
+        this.style.removeProperty("--panel-width");
+      }
+    }
+
+    getNextIndex(aReverse, aAmount, aIndex, aMaxRow) {
+      if (aMaxRow < 0) {
+        return -1;
+      }
+
+      let newIdx = aIndex + (aReverse ? -1 : 1) * aAmount;
+      if (
+        (aReverse && aIndex == -1) ||
+        (newIdx > aMaxRow && aIndex != aMaxRow)
+      ) {
+        newIdx = aMaxRow;
+      } else if ((!aReverse && aIndex == -1) || (newIdx < 0 && aIndex != 0)) {
+        newIdx = 0;
+      }
+
+      if (
+        (newIdx < 0 && aIndex == 0) ||
+        (newIdx > aMaxRow && aIndex == aMaxRow)
+      ) {
+        aIndex = -1;
+      } else {
+        aIndex = newIdx;
+      }
+
+      return aIndex;
+    }
+
+    onPopupClick(aEvent) {
+      this.input.controller.handleEnter(true, aEvent);
+    }
+
+    onSearchBegin() {
+      this.mousedOverIndex = -1;
+
+      if (typeof this._onSearchBegin == "function") {
+        this._onSearchBegin();
+      }
+    }
+
+    openAutocompletePopup(aInput, aElement) {
+      // until we have "baseBinding", (see bug #373652) this allows
+      // us to override openAutocompletePopup(), but still call
+      // the method on the base class
+      this._openAutocompletePopup(aInput, aElement);
+    }
+
+    _openAutocompletePopup(aInput, aElement) {
+      if (!this.mPopupOpen) {
+        // It's possible that the panel is hidden initially
+        // to avoid impacting startup / new window performance
+        aInput.popup.hidden = false;
+
+        this.mInput = aInput;
+        // clear any previous selection, see bugs 400671 and 488357
+        this.selectedIndex = -1;
+
+        let width = aElement.getBoundingClientRect().width;
+        this.style.setProperty(
+          "--panel-width",
+          (width > 100 ? width : 100) + "px"
+        );
+        // invalidate() depends on the width attribute
+        this._invalidate();
+
+        this.openPopup(aElement, "after_start", 0, 0, false, false);
+      }
+    }
+
+    invalidate(reason) {
+      // Don't bother doing work if we're not even showing
+      if (!this.mPopupOpen) {
+        return;
+      }
+
+      this._invalidate(reason);
+    }
+
+    _invalidate(reason) {
+      setTimeout(() => this.adjustHeight(), 0);
+
+      // remove all child nodes because we never want to reuse them.
+      while (this.richlistbox.hasChildNodes()) {
+        this.richlistbox.lastChild.remove();
+      }
+
+      this._currentIndex = 0;
+      this._appendCurrentResult();
+    }
+
+    _collapseUnusedItems() {
+      let existingItemsCount = this.richlistbox.children.length;
+      for (let i = this.matchCount; i < existingItemsCount; ++i) {
+        let item = this.richlistbox.children[i];
+
+        item.collapsed = true;
+        if (typeof item._onCollapse == "function") {
+          item._onCollapse();
+        }
+      }
+    }
+
+    adjustHeight() {
+      // Figure out how many rows to show
+      let rows = this.richlistbox.children;
+      let numRows = Math.min(this.matchCount, this.maxRows, rows.length);
+
+      // Default the height to 0 if we have no rows to show
+      let height = 0;
+      if (numRows) {
+        let firstRowRect = rows[0].getBoundingClientRect();
+        if (this._rlbPadding == undefined) {
+          let style = window.getComputedStyle(this.richlistbox);
+          let paddingTop = parseInt(style.paddingTop) || 0;
+          let paddingBottom = parseInt(style.paddingBottom) || 0;
+          this._rlbPadding = paddingTop + paddingBottom;
+        }
+
+        // The class `forceHandleUnderflow` is for the item might need to
+        // handle OverUnderflow or Overflow when the height of an item will
+        // be changed dynamically.
+        for (let i = 0; i < numRows; i++) {
+          if (rows[i].classList.contains("forceHandleUnderflow")) {
+            rows[i].handleOverUnderflow();
+          }
+        }
+
+        let lastRowRect = rows[numRows - 1].getBoundingClientRect();
+        // Calculate the height to have the first row to last row shown
+        height = lastRowRect.bottom - firstRowRect.top + this._rlbPadding;
+      }
+
+      let currentHeight = this.richlistbox.getBoundingClientRect().height;
+      if (height <= currentHeight) {
+        this._collapseUnusedItems();
+      }
+      this.richlistbox.style.removeProperty("height");
+      // We need to get the ceiling of the calculated value to ensure that the box fully contains
+      // all of its contents and doesn't cause a scrollbar since nsIBoxObject only expects a
+      // `long`. e.g. if `height` is 99.5 the richlistbox would render at height 99px with a
+      // scrollbar for the extra 0.5px.
+      this.richlistbox.height = Math.ceil(height);
+    }
+
+    _appendCurrentResult() {
+      let controller = this.mInput.controller;
+      let glodaCompleter = Cc[
+        "@mozilla.org/autocomplete/search;1?name=gloda"
+      ].getService(Ci.nsIAutoCompleteSearch).wrappedJSObject;
+
+      // Process maxRows per chunk to improve performance and user experience
+      for (let i = 0; i < this.maxRows; i++) {
+        if (this._currentIndex >= this.matchCount) {
+          return;
+        }
+
+        let item;
+
+        // trim the leading/trailing whitespace
+        let trimmedSearchString = controller.searchString.trim();
+        let result = glodaCompleter.curResult;
+
+        item = document.createXULElement("richlistitem", {
+          is: result.getStyleAt(this._currentIndex),
+        });
+
+        // set these attributes before we set the class
+        // so that we can use them from the constructor
+        let row = result.getObjectAt(this._currentIndex);
+        item.setAttribute("text", trimmedSearchString);
+        item.setAttribute("type", result.getStyleAt(this._currentIndex));
+
+        item.row = row;
+
+        // set the class at the end so we can use the attributes
+        // in the xbl constructor
+        item.className = "autocomplete-richlistitem";
+        this.richlistbox.appendChild(item);
+        this._currentIndex++;
+      }
+
+      // yield after each batch of items so that typing the url bar is responsive
+      setTimeout(() => this._appendCurrentResult(), 0);
+    }
+
+    selectBy(aReverse, aPage) {
+      try {
+        let amount = aPage ? 5 : 1;
+
+        // because we collapsed unused items, we can't use this.richlistbox.getRowCount(), we need to use the matchCount
+        this.selectedIndex = this.getNextIndex(
+          aReverse,
+          amount,
+          this.selectedIndex,
+          this.matchCount - 1
+        );
+        if (this.selectedIndex == -1) {
+          this.input._focus();
+        }
+      } catch (ex) {
+        // do nothing - occasionally timer-related js errors happen here
+        // e.g. "this.selectedIndex has no properties", when you type fast and hit a
+        // navigation key before this popup has opened
+      }
+    }
+
+    disconnectedCallback() {
+      if (this.listEvents) {
+        this.richlistbox.removeEventListener("mouseup", this.listEvents);
+        this.richlistbox.removeEventListener("mousemove", this.listEvents);
+        delete this.listEvents;
+      }
+    }
+  }
+
+  MozXULElement.implementCustomInterface(MozGlodacompleteRichResultPopup, [
+    Ci.nsIAutoCompletePopup,
+  ]);
+  customElements.define(
+    "glodacomplete-rich-result-popup",
+    MozGlodacompleteRichResultPopup,
+    { extends: "panel" }
+  );
+}