Files

335 lines
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TypeScript

import common = require("./action-bar-common");
import dts = require("ui/action-bar");
import imageSource = require("image-source");
import frameModule = require("ui/frame");
import enums = require("ui/enums");
import view = require("ui/core/view");
import utils = require("utils/utils");
import types = require("utils/types");
import style = require("ui/styling/style");
import frame = require("ui/frame");
global.moduleMerge(common, exports);
export class ActionItem extends common.ActionItem {
private _ios: dts.IOSActionItemSettings = {
position: enums.IOSActionItemPosition.left,
systemIcon: undefined
};
public get ios(): dts.IOSActionItemSettings {
return this._ios;
}
public set ios(value: dts.IOSActionItemSettings) {
throw new Error("ActionItem.android is read-only");
}
}
export class NavigationButton extends ActionItem {
}
export class ActionBar extends common.ActionBar {
get ios(): UIView {
if (!(this.page && this.page.parent)) {
return;
}
let viewController = (<UIViewController>this.page.ios);
if (viewController.navigationController !== null) {
return viewController.navigationController.navigationBar;
}
return null;
}
public update() {
// Page should be attached to frame to update the action bar.
if (!(this.page && this.page.parent)) {
return;
}
var viewController = (<UIViewController>this.page.ios);
var navigationItem: UINavigationItem = viewController.navigationItem;
var navController = frameModule.topmost().ios.controller;
var navigationBar = navController ? <UINavigationBar>navController.navigationBar : null;
var previousController: UIViewController;
// Set Title
navigationItem.title = this.title;
if (this.titleView && this.titleView.ios) {
navigationItem.titleView = this.titleView.ios;
}
// Find previous ViewController in the navigation stack
var indexOfViewController = navController.viewControllers.indexOfObject(viewController);
if (indexOfViewController < navController.viewControllers.count && indexOfViewController > 0) {
previousController = navController.viewControllers[indexOfViewController - 1];
}
// Set back button text
if (previousController) {
if (this.navigationButton) {
var tapHandler = TapBarItemHandlerImpl.initWithOwner(new WeakRef(this.navigationButton));
var barButtonItem = UIBarButtonItem.alloc().initWithTitleStyleTargetAction(this.navigationButton.text + "", UIBarButtonItemStyle.UIBarButtonItemStylePlain, tapHandler, "tap");
previousController.navigationItem.backBarButtonItem = barButtonItem;
}
else {
previousController.navigationItem.backBarButtonItem = null;
}
}
// Set back button image
var img: imageSource.ImageSource;
if (this.navigationButton && common.isVisible(this.navigationButton) && this.navigationButton.icon) {
img = imageSource.fromFileOrResource(this.navigationButton.icon);
}
// TODO: This could cause issue when canceling BackEdge gesture - we will change the backIndicator to
// show the one from the old page but the new page will still be visible (because we canceled EdgeBackSwipe gesutre)
// Consider moving this to new method and call it from - navigationControllerDidShowViewControllerAnimated.
if (img && img.ios) {
var image = img.ios.imageWithRenderingMode(UIImageRenderingMode.UIImageRenderingModeAlwaysOriginal)
navigationBar.backIndicatorImage = image;
navigationBar.backIndicatorTransitionMaskImage = image;
}
else {
navigationBar.backIndicatorImage = null;
navigationBar.backIndicatorTransitionMaskImage = null;
}
// Set back button visibility
if (this.navigationButton) {
navigationItem.setHidesBackButtonAnimated(!common.isVisible(this.navigationButton), true);
}
// Populate action items
this.populateMenuItems(navigationItem);
// update colors explicitly - they may have to be cleared form a previous page
this.updateColors(navigationBar);
}
private populateMenuItems(navigationItem: UINavigationItem) {
let items = this.actionItems.getVisibleItems();
let leftBarItems = [];
let rightBarItems = [];
for (let i = 0; i < items.length; i++) {
let barButtonItem = this.createBarButtonItem(items[i]);
if (items[i].ios.position === enums.IOSActionItemPosition.left) {
leftBarItems.push(barButtonItem);
}
else {
rightBarItems.splice(0, 0, barButtonItem);
}
}
navigationItem.setLeftBarButtonItemsAnimated(<any>leftBarItems, false);
navigationItem.setRightBarButtonItemsAnimated(<any>rightBarItems, false);
if (leftBarItems.length > 0) {
navigationItem.leftItemsSupplementBackButton = true;
}
}
private createBarButtonItem(item: dts.ActionItem): UIBarButtonItem {
var tapHandler = TapBarItemHandlerImpl.initWithOwner(new WeakRef(item));
// associate handler with menuItem or it will get collected by JSC.
(<any>item).handler = tapHandler;
var barButtonItem: UIBarButtonItem;
if (item.actionView && item.actionView.ios) {
var recognizer = UITapGestureRecognizer.alloc().initWithTargetAction(tapHandler, "tap");
item.actionView.ios.addGestureRecognizer(recognizer);
barButtonItem = UIBarButtonItem.alloc().initWithCustomView(item.actionView.ios);
}
else if (types.isNumber(item.ios.systemIcon)) {
barButtonItem = UIBarButtonItem.alloc().initWithBarButtonSystemItemTargetAction(item.ios.systemIcon, tapHandler, "tap");
}
else if (item.icon) {
var img = imageSource.fromFileOrResource(item.icon);
if (img && img.ios) {
barButtonItem = UIBarButtonItem.alloc().initWithImageStyleTargetAction(img.ios, UIBarButtonItemStyle.UIBarButtonItemStylePlain, tapHandler, "tap");
}
else {
throw new Error("Error loading icon from " + item.icon);
}
}
else {
barButtonItem = UIBarButtonItem.alloc().initWithTitleStyleTargetAction(item.text + "", UIBarButtonItemStyle.UIBarButtonItemStylePlain, tapHandler, "tap");
}
return barButtonItem;
}
private updateColors(navBar: UINavigationBar) {
var color = this.color;
if (color) {
navBar.titleTextAttributes = <any>{ [NSForegroundColorAttributeName]: color.ios };
navBar.tintColor = color.ios;
}
else {
navBar.titleTextAttributes = null;
navBar.tintColor = null;
}
var bgColor = this.backgroundColor;
navBar.barTintColor = bgColor ? bgColor.ios : null;
}
public _onTitlePropertyChanged() {
if (!this.page) {
return;
}
if (this.page.frame) {
this.page.frame._updateActionBar();
}
var navigationItem: UINavigationItem = (<UIViewController>this.page.ios).navigationItem;
navigationItem.title = this.title;
}
private _navigationBarHeight: number = 0;
public onMeasure(widthMeasureSpec: number, heightMeasureSpec: number) {
let width = utils.layout.getMeasureSpecSize(widthMeasureSpec);
let widthMode = utils.layout.getMeasureSpecMode(widthMeasureSpec);
let height = utils.layout.getMeasureSpecSize(heightMeasureSpec);
let heightMode = utils.layout.getMeasureSpecMode(heightMeasureSpec);
let navBarWidth = 0;
let navBarHeight = 0;
let frame = <frameModule.Frame>this.page.frame;
if (frame) {
let navBar: UIView = frame.ios.controller.navigationBar;
if (!navBar.hidden) {
let navBarSize = navBar.sizeThatFits(CGSizeMake(
(widthMode === utils.layout.UNSPECIFIED) ? Number.POSITIVE_INFINITY : width,
(heightMode === utils.layout.UNSPECIFIED) ? Number.POSITIVE_INFINITY : height));
navBarWidth = navBarSize.width;
navBarHeight = navBarSize.height;
}
}
this._navigationBarHeight = navBarHeight;
if (this.titleView) {
view.View.measureChild(this, this.titleView,
utils.layout.makeMeasureSpec(width, utils.layout.AT_MOST),
utils.layout.makeMeasureSpec(navBarHeight, utils.layout.AT_MOST));
}
this.actionItems.getItems().forEach((actionItem) => {
if (actionItem.actionView) {
view.View.measureChild(this, actionItem.actionView,
utils.layout.makeMeasureSpec(width, utils.layout.AT_MOST),
utils.layout.makeMeasureSpec(navBarHeight, utils.layout.AT_MOST));
}
});
// We ignore our width/height, minWidth/minHeight dimensions because it is against Apple policy to change height of NavigationBar.
this.setMeasuredDimension(navBarWidth, navBarHeight);
}
public onLayout(left: number, top: number, right: number, bottom: number) {
view.View.layoutChild(this, this.titleView, 0, 0, right - left, this._navigationBarHeight);
this.actionItems.getItems().forEach((actionItem) => {
if (actionItem.actionView && actionItem.actionView.ios) {
let measuredWidth = actionItem.actionView.getMeasuredWidth();
let measuredHeight = actionItem.actionView.getMeasuredHeight();
view.View.layoutChild(this, actionItem.actionView, 0, 0, measuredWidth, measuredHeight);
}
});
super.onLayout(left, top, right, bottom);
let navigationBar = this.ios;
if (navigationBar) {
navigationBar.setNeedsLayout();
}
}
public layoutNativeView(left: number, top: number, right: number, bottom: number) {
return;
}
public _shouldApplyStyleHandlers() {
var topFrame = frameModule.topmost();
return !!topFrame;
}
}
class TapBarItemHandlerImpl extends NSObject {
private _owner: WeakRef<dts.ActionItem>;
public static initWithOwner(owner: WeakRef<dts.ActionItem>): TapBarItemHandlerImpl {
let handler = <TapBarItemHandlerImpl>TapBarItemHandlerImpl.new();
handler._owner = owner;
return handler;
}
public tap(args) {
let owner = this._owner.get();
if (owner) {
owner._raiseTap();
}
}
public static ObjCExposedMethods = {
"tap": { returns: interop.types.void, params: [interop.types.id] }
};
}
export class ActionBarStyler implements style.Styler {
// color
private static setColorProperty(v: view.View, newValue: any) {
var topFrame = frame.topmost();
if (topFrame) {
var navBar = topFrame.ios.controller.navigationBar;
navBar.titleTextAttributes = <any>{ [NSForegroundColorAttributeName]: newValue };
navBar.tintColor = newValue;
}
}
private static resetColorProperty(v: view.View, nativeValue: any) {
var topFrame = frame.topmost();
if (topFrame) {
var navBar = topFrame.ios.controller.navigationBar;
navBar.titleTextAttributes = null;
navBar.tintColor = null;
}
}
// background-color
private static setBackgroundColorProperty(v: view.View, newValue: any) {
var topFrame = frame.topmost();
if (topFrame) {
var navBar = topFrame.ios.controller.navigationBar;
navBar.barTintColor = newValue;
}
}
private static resetBackgroundColorProperty(v: view.View, nativeValue: any) {
var topFrame = frame.topmost();
if (topFrame) {
var navBar = topFrame.ios.controller.navigationBar;
navBar.barTintColor = null;
}
}
public static registerHandlers() {
style.registerHandler(style.colorProperty, new style.StylePropertyChangedHandler(
ActionBarStyler.setColorProperty,
ActionBarStyler.resetColorProperty), "ActionBar");
style.registerHandler(style.backgroundColorProperty, new style.StylePropertyChangedHandler(
ActionBarStyler.setBackgroundColorProperty,
ActionBarStyler.resetBackgroundColorProperty), "ActionBar");
style.registerHandler(style.backgroundInternalProperty, style.ignorePropertyHandler, "ActionBar");
}
}
ActionBarStyler.registerHandlers();