From 4492b5f8e774bf3b4f21e4e468fc052cbcbb468a Mon Sep 17 00:00:00 2001
From: Thomas Groman <tgroman@nuegia.net>
Date: Mon, 16 Dec 2019 19:48:42 -0800
Subject: initial commit

---
 components/places/content/sidebarUtils.js | 108 ++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 components/places/content/sidebarUtils.js

(limited to 'components/places/content/sidebarUtils.js')

diff --git a/components/places/content/sidebarUtils.js b/components/places/content/sidebarUtils.js
new file mode 100644
index 0000000..06ed537
--- /dev/null
+++ b/components/places/content/sidebarUtils.js
@@ -0,0 +1,108 @@
+# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+# 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/.
+
+var SidebarUtils = {
+  handleTreeClick: function SU_handleTreeClick(aTree, aEvent, aGutterSelect) {
+    // right-clicks are not handled here
+    if (aEvent.button == 2)
+      return;
+
+    var tbo = aTree.treeBoxObject;
+    var cell = tbo.getCellAt(aEvent.clientX, aEvent.clientY);
+
+    if (cell.row == -1 || cell.childElt == "twisty")
+      return;
+
+    var mouseInGutter = false;
+    if (aGutterSelect) {
+      var rect = tbo.getCoordsForCellItem(cell.row, cell.col, "image");
+      // getCoordsForCellItem returns the x coordinate in logical coordinates
+      // (i.e., starting from the left and right sides in LTR and RTL modes,
+      // respectively.)  Therefore, we make sure to exclude the blank area
+      // before the tree item icon (that is, to the left or right of it in
+      // LTR and RTL modes, respectively) from the click target area.
+      var isRTL = window.getComputedStyle(aTree, null).direction == "rtl";
+      if (isRTL)
+        mouseInGutter = aEvent.clientX > rect.x;
+      else
+        mouseInGutter = aEvent.clientX < rect.x;
+    }
+
+#ifdef XP_MACOSX
+    var modifKey = aEvent.metaKey || aEvent.shiftKey;
+#else
+    var modifKey = aEvent.ctrlKey || aEvent.shiftKey;
+#endif
+
+    var isContainer = tbo.view.isContainer(cell.row);
+    var openInTabs = isContainer &&
+                     (aEvent.button == 1 ||
+                      (aEvent.button == 0 && modifKey)) &&
+                     PlacesUtils.hasChildURIs(tbo.view.nodeForTreeIndex(cell.row), true);
+
+    if (aEvent.button == 0 && isContainer && !openInTabs) {
+      tbo.view.toggleOpenState(cell.row);
+      return;
+    }
+    else if (!mouseInGutter && openInTabs &&
+            aEvent.originalTarget.localName == "treechildren") {
+      tbo.view.selection.select(cell.row);
+      PlacesUIUtils.openContainerNodeInTabs(aTree.selectedNode, aEvent, aTree);
+    }
+    else if (!mouseInGutter && !isContainer &&
+             aEvent.originalTarget.localName == "treechildren") {
+      // Clear all other selection since we're loading a link now. We must
+      // do this *before* attempting to load the link since openURL uses
+      // selection as an indication of which link to load.
+      tbo.view.selection.select(cell.row);
+      PlacesUIUtils.openNodeWithEvent(aTree.selectedNode, aEvent, aTree);
+    }
+  },
+
+  handleTreeKeyPress: function SU_handleTreeKeyPress(aEvent) {
+    // XXX Bug 627901: Post Fx4, this method should take a tree parameter.
+    let tree = aEvent.target;
+    let node = tree.selectedNode;
+    if (node) {
+      if (aEvent.keyCode == KeyEvent.DOM_VK_RETURN)
+        PlacesUIUtils.openNodeWithEvent(node, aEvent, tree);
+    }
+  },
+
+  /**
+   * The following function displays the URL of a node that is being
+   * hovered over.
+   */
+  handleTreeMouseMove: function SU_handleTreeMouseMove(aEvent) {
+    if (aEvent.target.localName != "treechildren")
+      return;
+
+    var tree = aEvent.target.parentNode;
+    var tbo = tree.treeBoxObject;
+    var cell = tbo.getCellAt(aEvent.clientX, aEvent.clientY);
+
+    // cell.row is -1 when the mouse is hovering an empty area within the tree.
+    // To avoid showing a URL from a previously hovered node for a currently
+    // hovered non-url node, we must clear the moused-over URL in these cases.
+    if (cell.row != -1) {
+      var node = tree.view.nodeForTreeIndex(cell.row);
+      if (PlacesUtils.nodeIsURI(node))
+        this.setMouseoverURL(node.uri);
+      else
+        this.setMouseoverURL("");
+    }
+    else
+      this.setMouseoverURL("");
+  },
+
+  setMouseoverURL: function SU_setMouseoverURL(aURL) {
+    // When the browser window is closed with an open sidebar, the sidebar
+    // unload event happens after the browser's one.  In this case
+    // top.XULBrowserWindow has been nullified already.
+    if (top.XULBrowserWindow) {
+      top.XULBrowserWindow.setOverLink(aURL, null);
+    }
+  }
+};
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