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* Copyright 2012 Canonical Ltd.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; version 3.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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import Ubuntu.Components 1.3 as Toolkit
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\inqmlmodule Ubuntu.Components 1.1
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\brief The common parent of \l Page, \l MainView, \l PageStack and \l Tabs.
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It is used to propagate properties such as \l header and \l toolbar from a
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\l MainView (the root node) to each \l Page (leaf node) in the tree.
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Used to determine whether an Item is a PageTreeNode
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property bool __isPageTreeNode: true
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onParentChanged: internal.updatePageTree()
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Component.onCompleted: internal.updatePageTree()
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The toolbar of the node. Propagates down from the root node.
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This property is DEPRECATED.
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property Item toolbar: node.__propagated && node.__propagated.hasOwnProperty("toolbar")
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? node.__propagated.toolbar : null
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QtObject containing all the properties that are propagated from the
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root (MainView) of a page tree to its leafs (Pages).
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This object contains properties such as the header and toolbar that are
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instantiated by the MainView.
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This property is internal because the derived classes (MainView and Page)
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need to access it, but other components using those classes should not have
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property QtObject __propagated: node.parentNode ? node.parentNode.__propagated : null
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At any time, there is exactly one path from the root node to a Page leaf node
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where all nodes are active. All other nodes are not active. This is used by
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\l Tabs and \l PageStack to determine which of multiple nodes in the Tabs or
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PageStack is the currently active one.
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property bool active: node.parentNode ? node.parentNode.active : false
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The \l PageStack that this Page has been pushed on, or null if it is not
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part of a PageStack. This value is automatically set for pages that are pushed
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on a PageStack, and propagates to its child nodes.
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// Note: pageStack is not included in the propagated property because there may
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// be multiple PageStacks in a single page tree.
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property Item pageStack: node.parentNode ? node.parentNode.pageStack : null
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The parent node of the current node in the page tree.
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property Item parentNode: null
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The leaf node that is active.
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property Item activeLeafNode
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Whether or not this node is a leaf, that is if it has no descendant that are nodes.
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Pages are leafs, and they don't have descendants in the PageTree.
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property bool isLeaf: false
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activeFocusOnPress: true
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target: node.parentNode
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property: "activeLeafNode"
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value: node.isLeaf ? node : node.activeLeafNode
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function isPageTreeNode(object) {
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// FIXME: Use QuickUtils.className() when it becomes available.
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return (object && object.hasOwnProperty("__isPageTreeNode") && object.__isPageTreeNode);
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Return the parent node in the page tree, or null if the item is the root node or invalid.
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function getParentPageTreeNode(item) {
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if (internal.isPageTreeNode(i)) {
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// children of a leaf are not part of the tree
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// current node is part of the tree with i as its parent.
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Find the parent node.
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function updatePageTree() {
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node.parentNode = internal.getParentPageTreeNode(node);
added
removed
src/Ubuntu/Components/1.3/PageTreeNode.qml
