291 lines
9.9 KiB
JavaScript
291 lines
9.9 KiB
JavaScript
/**
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* Copyright (c) 2015, Facebook, Inc. All rights reserved.
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*
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* Facebook, Inc. ("Facebook") owns all right, title and interest, including
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* all intellectual property and other proprietary rights, in and to the React
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* Native CustomComponents software (the "Software"). Subject to your
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* compliance with these terms, you are hereby granted a non-exclusive,
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* worldwide, royalty-free copyright license to (1) use and copy the Software;
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* and (2) reproduce and distribute the Software as part of your own software
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* ("Your Software"). Facebook reserves all rights not expressly granted to
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* you in this license agreement.
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*
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* THE SOFTWARE AND DOCUMENTATION, IF ANY, ARE PROVIDED "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES (INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE) ARE DISCLAIMED.
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* IN NO EVENT SHALL FACEBOOK OR ITS AFFILIATES, OFFICERS, DIRECTORS OR
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* EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THE SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @providesModule NavigatorBreadcrumbNavigationBar
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*/
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'use strict';
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var NavigatorBreadcrumbNavigationBarStyles = require('NavigatorBreadcrumbNavigationBarStyles');
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var NavigatorNavigationBarStylesAndroid = require('NavigatorNavigationBarStylesAndroid');
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var NavigatorNavigationBarStylesIOS = require('NavigatorNavigationBarStylesIOS');
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var Platform = require('Platform');
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var React = require('React');
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var StyleSheet = require('StyleSheet');
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var View = require('View');
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var { Map } = require('immutable');
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var invariant = require('invariant');
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var Interpolators = NavigatorBreadcrumbNavigationBarStyles.Interpolators;
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var NavigatorNavigationBarStyles = Platform.OS === 'android' ?
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NavigatorNavigationBarStylesAndroid : NavigatorNavigationBarStylesIOS;
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var PropTypes = React.PropTypes;
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/**
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* Reusable props objects.
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*/
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var CRUMB_PROPS = Interpolators.map(() => ({style: {}}));
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var ICON_PROPS = Interpolators.map(() => ({style: {}}));
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var SEPARATOR_PROPS = Interpolators.map(() => ({style: {}}));
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var TITLE_PROPS = Interpolators.map(() => ({style: {}}));
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var RIGHT_BUTTON_PROPS = Interpolators.map(() => ({style: {}}));
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var navStatePresentedIndex = function(navState) {
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if (navState.presentedIndex !== undefined) {
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return navState.presentedIndex;
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}
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// TODO: rename `observedTopOfStack` to `presentedIndex` in `NavigatorIOS`
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return navState.observedTopOfStack;
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};
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/**
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* The first route is initially rendered using a different style than all
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* future routes.
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*
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* @param {number} index Index of breadcrumb.
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* @return {object} Style config for initial rendering of index.
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*/
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var initStyle = function(index, presentedIndex) {
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return index === presentedIndex ? NavigatorBreadcrumbNavigationBarStyles.Center[index] :
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index < presentedIndex ? NavigatorBreadcrumbNavigationBarStyles.Left[index] :
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NavigatorBreadcrumbNavigationBarStyles.Right[index];
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};
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var NavigatorBreadcrumbNavigationBar = React.createClass({
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propTypes: {
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navigator: PropTypes.shape({
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push: PropTypes.func,
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pop: PropTypes.func,
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replace: PropTypes.func,
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popToRoute: PropTypes.func,
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popToTop: PropTypes.func,
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}),
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routeMapper: PropTypes.shape({
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rightContentForRoute: PropTypes.func,
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titleContentForRoute: PropTypes.func,
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iconForRoute: PropTypes.func,
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}),
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navState: React.PropTypes.shape({
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routeStack: React.PropTypes.arrayOf(React.PropTypes.object),
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presentedIndex: React.PropTypes.number,
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}),
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style: View.propTypes.style,
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},
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statics: {
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Styles: NavigatorBreadcrumbNavigationBarStyles,
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},
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_updateIndexProgress: function(progress, index, fromIndex, toIndex) {
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var amount = toIndex > fromIndex ? progress : (1 - progress);
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var oldDistToCenter = index - fromIndex;
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var newDistToCenter = index - toIndex;
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var interpolate;
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invariant(
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Interpolators[index],
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'Cannot find breadcrumb interpolators for ' + index
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);
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if (oldDistToCenter > 0 && newDistToCenter === 0 ||
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newDistToCenter > 0 && oldDistToCenter === 0) {
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interpolate = Interpolators[index].RightToCenter;
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} else if (oldDistToCenter < 0 && newDistToCenter === 0 ||
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newDistToCenter < 0 && oldDistToCenter === 0) {
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interpolate = Interpolators[index].CenterToLeft;
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} else if (oldDistToCenter === newDistToCenter) {
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interpolate = Interpolators[index].RightToCenter;
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} else {
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interpolate = Interpolators[index].RightToLeft;
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}
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if (interpolate.Crumb(CRUMB_PROPS[index].style, amount)) {
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this._setPropsIfExists('crumb_' + index, CRUMB_PROPS[index]);
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}
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if (interpolate.Icon(ICON_PROPS[index].style, amount)) {
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this._setPropsIfExists('icon_' + index, ICON_PROPS[index]);
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}
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if (interpolate.Separator(SEPARATOR_PROPS[index].style, amount)) {
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this._setPropsIfExists('separator_' + index, SEPARATOR_PROPS[index]);
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}
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if (interpolate.Title(TITLE_PROPS[index].style, amount)) {
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this._setPropsIfExists('title_' + index, TITLE_PROPS[index]);
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}
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var right = this.refs['right_' + index];
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if (right &&
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interpolate.RightItem(RIGHT_BUTTON_PROPS[index].style, amount)) {
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right.setNativeProps(RIGHT_BUTTON_PROPS[index]);
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}
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},
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updateProgress: function(progress, fromIndex, toIndex) {
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var max = Math.max(fromIndex, toIndex);
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var min = Math.min(fromIndex, toIndex);
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for (var index = min; index <= max; index++) {
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this._updateIndexProgress(progress, index, fromIndex, toIndex);
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}
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},
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onAnimationStart: function(fromIndex, toIndex) {
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var max = Math.max(fromIndex, toIndex);
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var min = Math.min(fromIndex, toIndex);
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for (var index = min; index <= max; index++) {
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this._setRenderViewsToHardwareTextureAndroid(index, true);
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}
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},
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onAnimationEnd: function() {
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var max = this.props.navState.routeStack.length - 1;
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for (var index = 0; index <= max; index++) {
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this._setRenderViewsToHardwareTextureAndroid(index, false);
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}
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},
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_setRenderViewsToHardwareTextureAndroid: function(index, renderToHardwareTexture) {
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var props = {
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renderToHardwareTextureAndroid: renderToHardwareTexture,
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};
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this._setPropsIfExists('icon_' + index, props);
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this._setPropsIfExists('separator_' + index, props);
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this._setPropsIfExists('title_' + index, props);
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this._setPropsIfExists('right_' + index, props);
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},
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componentWillMount: function() {
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this._descriptors = {
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crumb: new Map(),
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title: new Map(),
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right: new Map(),
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};
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},
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render: function() {
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var navState = this.props.navState;
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var icons = navState && navState.routeStack.map(this._getBreadcrumb);
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var titles = navState.routeStack.map(this._getTitle);
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var buttons = navState.routeStack.map(this._getRightButton);
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return (
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<View style={[styles.breadCrumbContainer, this.props.style]}>
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{titles}
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{icons}
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{buttons}
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</View>
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);
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},
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_getBreadcrumb: function(route, index) {
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if (this._descriptors.crumb.has(route)) {
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return this._descriptors.crumb.get(route);
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}
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var navBarRouteMapper = this.props.routeMapper;
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var firstStyles = initStyle(index, navStatePresentedIndex(this.props.navState));
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var breadcrumbDescriptor = (
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<View
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key={'crumb_' + index}
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ref={'crumb_' + index}
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style={firstStyles.Crumb}>
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<View ref={'icon_' + index} style={firstStyles.Icon}>
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{navBarRouteMapper.iconForRoute(route, this.props.navigator)}
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</View>
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<View ref={'separator_' + index} style={firstStyles.Separator}>
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{navBarRouteMapper.separatorForRoute(route, this.props.navigator)}
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</View>
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</View>
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);
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this._descriptors.crumb = this._descriptors.crumb.set(route, breadcrumbDescriptor);
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return breadcrumbDescriptor;
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},
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_getTitle: function(route, index) {
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if (this._descriptors.title.has(route)) {
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return this._descriptors.title.get(route);
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}
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var titleContent = this.props.routeMapper.titleContentForRoute(
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this.props.navState.routeStack[index],
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this.props.navigator
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);
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var firstStyles = initStyle(index, navStatePresentedIndex(this.props.navState));
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var titleDescriptor = (
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<View
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key={'title_' + index}
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ref={'title_' + index}
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style={firstStyles.Title}>
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{titleContent}
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</View>
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);
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this._descriptors.title = this._descriptors.title.set(route, titleDescriptor);
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return titleDescriptor;
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},
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_getRightButton: function(route, index) {
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if (this._descriptors.right.has(route)) {
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return this._descriptors.right.get(route);
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}
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var rightContent = this.props.routeMapper.rightContentForRoute(
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this.props.navState.routeStack[index],
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this.props.navigator
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);
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if (!rightContent) {
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this._descriptors.right = this._descriptors.right.set(route, null);
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return null;
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}
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var firstStyles = initStyle(index, navStatePresentedIndex(this.props.navState));
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var rightButtonDescriptor = (
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<View
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key={'right_' + index}
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ref={'right_' + index}
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style={firstStyles.RightItem}>
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{rightContent}
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</View>
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);
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this._descriptors.right = this._descriptors.right.set(route, rightButtonDescriptor);
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return rightButtonDescriptor;
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},
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_setPropsIfExists: function(ref, props) {
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var ref = this.refs[ref];
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ref && ref.setNativeProps(props);
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},
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});
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var styles = StyleSheet.create({
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breadCrumbContainer: {
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overflow: 'hidden',
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position: 'absolute',
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height: NavigatorNavigationBarStyles.General.TotalNavHeight,
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top: 0,
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left: 0,
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right: 0,
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},
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});
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module.exports = NavigatorBreadcrumbNavigationBar;
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