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prevent new transition during a transition

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This commit is contained in:
Adam Bradley
2015-05-14 16:11:42 -05:00
parent 4f0fded520
commit 2e881d53e3
2 changed files with 26 additions and 22 deletions
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42
ionic/components/nav/nav-base.js
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@ -29,7 +29,11 @@ export class NavBase {
}
}
push(Class: Function, params = {}, opts = {}) {
push(Component, params = {}, opts = {}) {
if (this.isTransitioning()) {
return Promise.reject();
}
let resolve;
let promise = new Promise(res => { resolve = res; });
@ -46,7 +50,7 @@ export class NavBase {
leavingItem.shouldDestroy = false;
// create a new NavStackItem
let enteringItem = new NavItem(this, Class, params);
let enteringItem = new NavItem(this, Component, params);
// set that this item is staged (it's not ready to be animated in yet)
enteringItem.state = STAGED_STATE;
@ -64,6 +68,10 @@ export class NavBase {
}
pop(opts = {}) {
if (this.isTransitioning()) {
return Promise.reject();
}
// reject if there's nothing to pop to
if (this.items.length < 2) {
return Promise.reject();
@ -103,13 +111,6 @@ export class NavBase {
// wait for the new item to complete setup
enteringItem.setup().then(() => {
// get any items that are already staged to leave, or are actively leaving
// since a different item will be leaving, reset any actively leaving items to cached
let leavingItems = this.getLeavingItems();
for (let i = 0; i < leavingItems.length; i++) {
leavingItems[i].state = CACHED_STATE;
}
// set that the leaving item is stage to be leaving
leavingItem.state = STAGED_LEAVING_STATE;
@ -166,6 +167,19 @@ export class NavBase {
}
}
isTransitioning() {
var state;
for (let i = 0, ii = this.items.length; i < ii; i++) {
state = this.items[i].state;
if (state === ACTIVELY_ENTERING_STATE ||
state === ACTIVELY_LEAVING_STATE ||
state === STAGED_ENTERING_STATE ||
state === STAGED_LEAVING_STATE) {
return true;
}
}
return false;
}
getActive() {
for (let i = 0, ii = this.items.length; i < ii; i++) {
@ -201,16 +215,6 @@ export class NavBase {
return null;
}
getLeavingItems() {
let items = [];
for (let i = 0, ii = this.items.length; i < ii; i++) {
if (this.items[i].state === ACTIVELY_LEAVING_STATE || this.items[i].state === STAGED_LEAVING_STATE) {
items.push(this.items[i]);
}
}
return items;
}
last() {
return this.items[this.items.length - 1]
}