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[ionicHistory] add method to remove the back view #3811

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Merged
merged 2 commits into from
Apr 15, 2016
Merged

[ionicHistory] add method to remove the back view #3811

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9da113f
[ionicHistory] add method to remove the back view
May 22, 2015
e3c1147
[fix] trailing whitespace
May 23, 2015
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31 changes: 31 additions & 0 deletions js/angular/service/history.js
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Original file line number Diff line number Diff line change
Expand Up @@ -599,6 +599,37 @@ function($rootScope, $state, $location, $window, $timeout, $ionicViewSwitcher, $
viewHistory.backView && viewHistory.backView.go();
},

/**
* @ngdoc method
* @name $ionicHistory#removeBackView
* @description Remove the previous view from the history completely, including the
* cached element and scope (if they exist).
*/
removeBackView: function () {
var self = this;
var currentHistory = viewHistory.histories[this.currentHistoryId()];
var currentCursor = currentHistory.cursor;

var currentView = currentHistory.stack[currentCursor];
var backView = currentHistory.stack[currentCursor - 1];
var replacementView = currentHistory.stack[currentCursor - 2];

// fail if we dont have enough views in the history
if (!backView || !replacementView) {
return;
}

// remove the old backView and the cached element/scope
currentHistory.stack.splice(currentCursor - 1, 1);
self.clearCache([backView.viewId]);
// make the replacementView and currentView point to each other (bypass the old backView)
currentView.backViewId = replacementView.viewId;
currentView.index = currentView.index - 1;
replacementView.forwardViewId = currentView.viewId;
// update the cursor and set new backView
viewHistory.backView = replacementView;
currentHistory.currentCursor += -1;
},

enabledBack: function(view) {
var backView = getBackView(view);
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