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view state wip
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Adam Bradley
338
js/ext/angular/src/directive/ionicViewState.js
vendored
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338
js/ext/angular/src/directive/ionicViewState.js
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(function() {
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'use strict';
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/**
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* @description
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* The NavController is a navigation stack View Controller modelled off of
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* UINavigationController from Cocoa Touch. With the Nav Controller, you can
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* "push" new "pages" on to the navigation stack, and then pop them off to go
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* back. The NavController controls a navigation bar with a back button and title
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* which updates as the pages switch.
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*
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* The NavController makes sure to not recycle scopes of old pages
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* so that a pop will still show the same state that the user left.
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*
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* However, once a page is popped, its scope is destroyed and will have to be
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* recreated then next time it is pushed.
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*
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*/
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angular.module('ionic.ui.viewState', ['ionic.service.view', 'ionic.service.gesture'])
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/**
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* Our Nav Bar directive which updates as the controller state changes.
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*/
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.directive('navBar', ['ViewService', '$rootScope', '$animate', '$compile',
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function( ViewService, $rootScope, $animate, $compile) {
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/**
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* Perform an animation between one tab bar state and the next.
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* Right now this just animates the titles.
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*/
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var animate = function($scope, $element, oldTitle, data, cb) {
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var title, nTitle, oTitle, titles = $element[0].querySelectorAll('.title');
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var newTitle = data.title;
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if(!oldTitle || oldTitle === newTitle) {
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cb();
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return;
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}
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// Clone the old title and add a new one so we can show two animating in and out
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// add ng-leave and ng-enter during creation to prevent flickering when they are swapped during animation
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title = angular.element(titles[0]);
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oTitle = $compile('<h1 class="title" ng-bind="oldTitle"></h1>')($scope);
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title.replaceWith(oTitle);
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nTitle = $compile('<h1 class="title" ng-bind="currentTitle"></h1>')($scope);
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var insert = $element[0].firstElementChild || null;
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// Insert the new title
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$animate.enter(nTitle, $element, insert && angular.element(insert), function() {
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cb();
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});
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// Remove the old title
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$animate.leave(angular.element(oTitle), function() {
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});
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};
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return {
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restrict: 'E',
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replace: true,
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scope: {
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type: '@',
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backButtonType: '@',
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backButtonLabel: '@',
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backButtonIcon: '@',
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alignTitle: '@'
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},
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template: '<header class="bar bar-header nav-bar">'+//' ng-class="{invisible: !navController.navBar.isVisible}">' +
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'<div class="buttons"> ' +
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'<button view-back class="button" ng-show="enableBackButton && showBackButton" ng-class="backButtonClass" ng-bind-html="backButtonLabel"></button>' +
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'<button ng-click="button.tap($event)" ng-repeat="button in leftButtons" class="button no-animation {{button.type}}" ng-bind-html="button.content"></button>' +
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'</div>' +
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'<h1 class="title" ng-bind="currentTitle"></h1>' +
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'<div class="buttons" ng-if="rightButtons.length"> ' +
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'<button ng-click="button.tap($event)" ng-repeat="button in rightButtons" class="button no-animation {{button.type}}" ng-bind-html="button.content"></button>' +
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'</div>' +
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'</header>',
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link: function($scope, $element, $attr, navCtrl) {
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// Create the back button content and show/hide it based on scope settings
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$scope.enableBackButton = true;
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$scope.backButtonClass = $attr.backButtonType;
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if($attr.backButtonIcon) {
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$scope.backButtonClass += ' icon ' + $attr.backButtonIcon;
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}
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// Listen for changes in the stack cursor position to indicate whether a back
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// button should be shown (this can still be disabled by the $scope.enableBackButton
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$rootScope.$watch('$viewHistory.backView', function(backView) {
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if(backView) {
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var currentView = ViewService.getCurrentView();
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if(currentView) {
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if(backView.historyId === currentView.historyId) {
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$scope.showBackButton = true;
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return;
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}
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}
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}
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$scope.showBackButton = false;
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});
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// Store a reference to our nav controller
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$scope.navController = navCtrl;
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// Initialize our header bar view which will handle resizing and aligning our title labels
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var hb = new ionic.views.HeaderBar({
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el: $element[0],
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alignTitle: $scope.alignTitle || 'center'
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});
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$scope.headerBarView = hb;
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// Add the type of header bar class to this element
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$element.addClass($scope.type);
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var updateHeaderData = function(data) {
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var oldTitle = $scope.currentTitle;
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$scope.oldTitle = oldTitle;
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if(typeof data.title !== 'undefined') {
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$scope.currentTitle = data.title;
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}
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$scope.leftButtons = data.leftButtons;
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$scope.rightButtons = data.rightButtons;
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if(typeof data.hideBackButton !== 'undefined') {
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$scope.enableBackButton = data.hideBackButton !== true;
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}
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if(data.animate !== false && $attr.animation && data.title && data.navDirection) {
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$element[0].classList.add($attr.animation);
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if(data.navDirection === 'back') {
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$element[0].classList.add('reverse');
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} else {
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$element[0].classList.remove('reverse');
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}
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animate($scope, $element, oldTitle, data, function() {
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hb.align();
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});
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} else {
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hb.align();
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}
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};
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$rootScope.$on('viewState.viewEnter', function(e, data) {
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updateHeaderData(data);
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});
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// If a nav page changes the left or right buttons, update our scope vars
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$scope.$parent.$on('viewState.leftButtonsChanged', function(e, data) {
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$scope.leftButtons = data;
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});
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$scope.$parent.$on('viewState.rightButtonsChanged', function(e, data) {
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$scope.rightButtons = data;
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});
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}
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};
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}])
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.directive('view', ['ViewService', '$rootScope', '$animate',
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function( ViewService, $rootScope, $animate) {
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return {
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restrict: 'EA',
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priority: 1000,
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scope: {
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leftButtons: '=',
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rightButtons: '=',
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title: '=',
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icon: '@',
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iconOn: '@',
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iconOff: '@',
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type: '@',
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alignTitle: '@',
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hideBackButton: '@',
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hideNavBar: '@',
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animation: '@'
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},
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compile: function(tElement, tAttrs, transclude) {
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tElement.addClass('pane');
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tElement[0].removeAttribute('title');
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return function link($scope, $element, $attr) {
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// Should we hide a back button when this tab is shown
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$scope.hideBackButton = $scope.$eval($scope.hideBackButton);
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$scope.hideNavBar = $scope.$eval($scope.hideNavBar);
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if($scope.hideBackButton === true) {
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$scope.$emit('viewState.hideBackButton');
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} else {
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$scope.$emit('viewState.showBackButton');
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}
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// watch for changes in the left buttons
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$scope.$watch('leftButtons', function(value) {
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$scope.$emit('viewState.leftButtonsChanged', $scope.leftButtons);
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});
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$scope.$watch('rightButtons', function(val) {
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$scope.$emit('viewState.rightButtonsChanged', $scope.rightButtons);
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});
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}
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}
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};
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}])
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.directive('viewBack', ['ViewService', function(ViewService) {
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var goBack = function(e) {
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var backView = ViewService.getBackView();
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backView && backView.go();
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e.alreadyHandled = true;
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return false;
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};
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return {
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restrict: 'AC',
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link: function($scope, $element) {
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$element.bind('click', goBack);
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}
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};
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}])
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.directive('uiView', ['ViewService', '$state', '$anchorScroll', '$compile', '$controller', '$animate',
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function( ViewService, $state, $anchorScroll, $compile, $controller, $animate) {
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var viewIsUpdating = false;
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var animation;
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var directive = {
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restrict: 'ECA',
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terminal: true,
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priority: 2000,
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transclude: true,
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link: function(scope, $element, attr, ctrl, $transclude) {
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var currentElement,
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autoScrollExp = attr.autoscroll,
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onloadExp = attr.onload || '',
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viewLocals,
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viewScope,
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name = attr[directive.name] || attr.name || '',
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parent = $element.parent().inheritedData('$uiView');
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if (name.indexOf('@') < 0) name = name + '@' + (parent ? parent.state.name : '');
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var view = { name: name, state: null, animation: null };
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$element.data('$uiView', view);
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var climbElement = $element[0];
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while(!animation && climbElement) {
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animation = climbElement.getAttribute('animation');
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climbElement = climbElement.parentElement;
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}
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var eventHook = function() {
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if (viewIsUpdating) return;
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viewIsUpdating = true;
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try { update(true); } catch (e) {
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viewIsUpdating = false;
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throw e;
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}
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viewIsUpdating = false;
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};
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scope.$on('$stateChangeSuccess', eventHook);
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scope.$on('$viewContentLoading', eventHook);
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update(false);
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function update(doAnimation) {
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var locals = $state.$current && $state.$current.locals[name],
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template = (locals && locals.$template ? locals.$template.trim() : null);
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if (locals === viewLocals) return; // nothing to do here, go about your business
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var transitionOptions = {
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parentElement: $element,
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doAnimation: doAnimation,
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leavingScope: viewScope,
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leavingElement: currentElement,
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navDirection: null
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};
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if (template) {
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currentElement = angular.element(template);
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var registerData = {};
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if(currentElement[0].tagName !== 'TABS') {
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registerData = ViewService.register(scope);
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transitionOptions.navDirection = registerData.navDirection;
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}
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viewLocals = locals;
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view.state = locals.$$state;
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var link = $compile(currentElement),
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current = $state.current;
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viewScope = current.scope = scope.$new();
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if (locals.$$controller) {
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locals.$scope = viewScope;
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var controller = $controller(locals.$$controller, locals);
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if (current.controllerAs) {
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viewScope[current.controllerAs] = controller;
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}
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currentElement.data('$ngControllerController', controller);
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currentElement.children().data('$ngControllerController', controller);
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}
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link(viewScope);
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viewScope.$emit('$viewContentLoaded');
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viewScope.$eval(onloadExp);
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viewScope.animation = animation;
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transitionOptions.enteringScope = viewScope.$$childHead;
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transitionOptions.enteringElement = currentElement;
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}
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ViewService.transition(transitionOptions);
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}
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}
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};
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return directive;
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}]);
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})();
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