mirror of
https://github.com/subsurface/subsurface.git
synced 2024-12-01 22:50:31 +00:00
244 lines
8.1 KiB
JavaScript
244 lines
8.1 KiB
JavaScript
|
/****************************************************************************
|
||
|
**
|
||
|
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
|
||
|
** All rights reserved.
|
||
|
** Contact: Nokia Corporation (qt-info@nokia.com)
|
||
|
**
|
||
|
** This file is part of the Qt Components project.
|
||
|
**
|
||
|
** $QT_BEGIN_LICENSE:BSD$
|
||
|
** You may use this file under the terms of the BSD license as follows:
|
||
|
**
|
||
|
** "Redistribution and use in source and binary forms, with or without
|
||
|
** modification, are permitted provided that the following conditions are
|
||
|
** met:
|
||
|
** * Redistributions of source code must retain the above copyright
|
||
|
** notice, this list of conditions and the following disclaimer.
|
||
|
** * Redistributions in binary form must reproduce the above copyright
|
||
|
** notice, this list of conditions and the following disclaimer in
|
||
|
** the documentation and/or other materials provided with the
|
||
|
** distribution.
|
||
|
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
|
||
|
** the names of its contributors may be used to endorse or promote
|
||
|
** products derived from this software without specific prior written
|
||
|
** permission.
|
||
|
**
|
||
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
||
|
** $QT_END_LICENSE$
|
||
|
**
|
||
|
****************************************************************************/
|
||
|
|
||
|
// Page stack. Items are page containers.
|
||
|
var pageStack = [];
|
||
|
|
||
|
// Page component cache map. Key is page url, value is page component.
|
||
|
var componentCache = {};
|
||
|
|
||
|
// Returns the page stack depth.
|
||
|
function getDepth() {
|
||
|
return pageStack.length;
|
||
|
}
|
||
|
|
||
|
// Pushes a page on the stack.
|
||
|
function push(page, properties, replace, immediate) {
|
||
|
// page order sanity check
|
||
|
if ((!replace && page == currentPage)
|
||
|
|| (replace && pageStack.length > 1
|
||
|
&& page == pageStack[pageStack.length - 2].page)) {
|
||
|
throw new Error("Cannot navigate so that the resulting page stack has two consecutive entries of the same page instance.");
|
||
|
}
|
||
|
|
||
|
// figure out if more than one page is being pushed
|
||
|
var pages;
|
||
|
if (page instanceof Array) {
|
||
|
pages = page;
|
||
|
page = pages.pop();
|
||
|
if (page.createObject === undefined && page.parent === undefined && typeof page != "string") {
|
||
|
properties = properties || page.properties;
|
||
|
page = page.page;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// get the current container
|
||
|
var oldContainer;
|
||
|
if (pageStack.length) {
|
||
|
oldContainer = pageStack[pageStack.length - 1];
|
||
|
}
|
||
|
|
||
|
// pop the old container off the stack if this is a replace
|
||
|
if (oldContainer && replace) {
|
||
|
pageStack.pop();
|
||
|
}
|
||
|
|
||
|
// push any extra defined pages onto the stack
|
||
|
if (pages) {
|
||
|
var i;
|
||
|
for (i = 0; i < pages.length; i++) {
|
||
|
var tPage = pages[i];
|
||
|
var tProps;
|
||
|
if (tPage.createObject === undefined && tPage.parent === undefined && typeof tPage != "string") {
|
||
|
tProps = tPage.properties;
|
||
|
tPage = tPage.page;
|
||
|
}
|
||
|
pageStack.push(initPage(tPage, tProps));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// initialize the page
|
||
|
var container = initPage(page, properties);
|
||
|
|
||
|
// push the page container onto the stack
|
||
|
pageStack.push(container);
|
||
|
|
||
|
depth = pageStack.length;
|
||
|
currentPage = container.page;
|
||
|
|
||
|
// perform page transition
|
||
|
//FIXME: this should be in for PageStack, out for PageRow?
|
||
|
//immediate = immediate || !oldContainer;
|
||
|
var orientationChange = false;
|
||
|
if (oldContainer) {
|
||
|
orientationChange = orientationChanges(oldContainer.page, container.page);
|
||
|
oldContainer.pushExit(replace, immediate, orientationChange);
|
||
|
}
|
||
|
|
||
|
// sync tool bar
|
||
|
var tools = container.page.tools || null;
|
||
|
if (toolBar) {
|
||
|
toolBar.setTools(tools, immediate ? "set" : replace ? "replace" : "push");
|
||
|
}
|
||
|
|
||
|
container.pushEnter(immediate, orientationChange);
|
||
|
return container.page;
|
||
|
}
|
||
|
|
||
|
// Initializes a page and its container.
|
||
|
function initPage(page, properties) {
|
||
|
var container = containerComponent.createObject(root);
|
||
|
|
||
|
var pageComp;
|
||
|
if (page.createObject) {
|
||
|
// page defined as component
|
||
|
pageComp = page;
|
||
|
} else if (typeof page == "string") {
|
||
|
// page defined as string (a url)
|
||
|
pageComp = componentCache[page];
|
||
|
if (!pageComp) {
|
||
|
pageComp = componentCache[page] = Qt.createComponent(page);
|
||
|
}
|
||
|
}
|
||
|
if (pageComp) {
|
||
|
if (pageComp.status == Component.Error) {
|
||
|
throw new Error("Error while loading page: " + pageComp.errorString());
|
||
|
} else {
|
||
|
// instantiate page from component
|
||
|
page = pageComp.createObject(container.pageParent, properties || {});
|
||
|
}
|
||
|
} else {
|
||
|
// copy properties to the page
|
||
|
for (var prop in properties) {
|
||
|
if (properties.hasOwnProperty(prop)) {
|
||
|
page[prop] = properties[prop];
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
container.page = page;
|
||
|
if (page.parent == null || page.parent == container.pageParent) {
|
||
|
container.owner = container;
|
||
|
} else {
|
||
|
container.owner = page.parent;
|
||
|
}
|
||
|
|
||
|
// the page has to be reparented if
|
||
|
if (page.parent != container.pageParent) {
|
||
|
page.parent = container.pageParent;
|
||
|
}
|
||
|
|
||
|
if (page.pageStack !== undefined) {
|
||
|
page.pageStack = root;
|
||
|
}
|
||
|
|
||
|
page.anchors.fill = container.pageParent
|
||
|
|
||
|
return container;
|
||
|
}
|
||
|
|
||
|
// Pops a page off the stack.
|
||
|
function pop(page, immediate) {
|
||
|
// make sure there are enough pages in the stack to pop
|
||
|
if (pageStack.length > 1) {
|
||
|
//unwind to itself means no pop
|
||
|
if (page !== undefined && page == pageStack[pageStack.length - 1].page) {
|
||
|
return
|
||
|
}
|
||
|
// pop the current container off the stack and get the next container
|
||
|
var oldContainer = pageStack.pop();
|
||
|
var container = pageStack[pageStack.length - 1];
|
||
|
if (page !== undefined) {
|
||
|
// an unwind target has been specified - pop until we find it
|
||
|
while (page != container.page && pageStack.length > 1) {
|
||
|
pageStack.pop();
|
||
|
container.popExit(immediate, false);
|
||
|
container = pageStack[pageStack.length - 1];
|
||
|
}
|
||
|
}
|
||
|
|
||
|
depth = pageStack.length;
|
||
|
currentPage = container.page;
|
||
|
|
||
|
// perform page transition
|
||
|
var orientationChange = orientationChanges(oldContainer.page, container.page);
|
||
|
oldContainer.popExit(immediate, orientationChange);
|
||
|
container.popEnter(immediate, orientationChange);
|
||
|
|
||
|
// sync tool bar
|
||
|
var tools = container.page.tools || null;
|
||
|
if (toolBar) {
|
||
|
toolBar.setTools(tools, immediate ? "set" : "pop");
|
||
|
}
|
||
|
return oldContainer.page;
|
||
|
} else {
|
||
|
return null;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Checks if the orientation changes between oldPage and newPage
|
||
|
function orientationChanges(oldPage, newPage) {
|
||
|
return newPage.orientationLock != 0 //PlasmaComponents.PageOrientation.Automatic
|
||
|
&& newPage.orientationLock != 3//PlasmaComponents.PageOrientation.LockPrevious
|
||
|
&& newPage.orientationLock != oldPage.orientationLock
|
||
|
}
|
||
|
|
||
|
// Clears the page stack.
|
||
|
function clear() {
|
||
|
var container;
|
||
|
while (container = pageStack.pop()) {
|
||
|
container.cleanup();
|
||
|
}
|
||
|
depth = 0;
|
||
|
currentPage = null;
|
||
|
}
|
||
|
|
||
|
// Iterates through all pages in the stack (top to bottom) to find a page.
|
||
|
function find(func) {
|
||
|
for (var i = pageStack.length - 1; i >= 0; i--) {
|
||
|
var page = pageStack[i].page;
|
||
|
if (func(page)) {
|
||
|
return page;
|
||
|
}
|
||
|
}
|
||
|
return null;
|
||
|
}
|
||
|
|