148 lines
4.7 KiB
Objective-C
148 lines
4.7 KiB
Objective-C
//
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// GooglePlusSampleMasterViewController.m
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//
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// Copyright 2012 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#import "GooglePlusSampleMasterViewController.h"
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#import "GooglePlusSampleAppDelegate.h"
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#import "GooglePlusSampleShareViewController.h"
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#import "GooglePlusSampleSignInViewController.h"
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#import "GooglePlusSampleMomentsViewController.h"
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static const int kNumViewControllers = 3;
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static NSString * const kMenuOptions[kNumViewControllers] = {
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@"Sign In", @"Share", @"Moments" };
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static NSString * const kUnselectableMenuOptions[kNumViewControllers] = {
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@"", @"", @"Sign in to use moments" };
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static NSString * const kNibNames[kNumViewControllers] = {
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@"GooglePlusSampleSignInViewController",
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@"GooglePlusSampleShareViewController",
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@"GooglePlusSampleMomentsViewController" };
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static const int kMomentsIndex = 2;
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@interface GooglePlusSampleMasterViewController () {
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NSIndexPath *momentsIndexPath_;
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}
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- (BOOL)isSelectable:(NSIndexPath *)indexPath;
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@end
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@implementation GooglePlusSampleMasterViewController
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- (id)initWithNibName:(NSString *)nibNameOrNil
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bundle:(NSBundle *)nibBundleOrNil {
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self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
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if (self) {
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self.title = @"Google+ SDK Sample";
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UIBarButtonItem *backButton = [[[UIBarButtonItem alloc]
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initWithTitle:@"Back"
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style:UIBarButtonItemStylePlain
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target:self
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action:@selector(backPressed)] autorelease];
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self.navigationItem.backBarButtonItem = backButton;
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}
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return self;
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}
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- (void)dealloc {
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[momentsIndexPath_ release];
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[super dealloc];
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}
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#pragma mark - View lifecycle
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- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)
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interfaceOrientation {
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if ([[UIDevice currentDevice] userInterfaceIdiom] ==
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UIUserInterfaceIdiomPhone) {
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return interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown;
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}
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return YES;
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}
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- (void)viewWillAppear:(BOOL)animated {
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[super viewWillAppear:animated];
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if (momentsIndexPath_) {
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[self.tableView
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reloadRowsAtIndexPaths:[NSArray arrayWithObject:momentsIndexPath_]
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withRowAnimation:UITableViewRowAnimationFade];
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}
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}
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#pragma mark - UITableViewDelegate/UITableViewDataSource
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- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
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return 1;
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}
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- (NSInteger)tableView:(UITableView *)tableView
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numberOfRowsInSection:(NSInteger)section {
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return kNumViewControllers;
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView
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cellForRowAtIndexPath:(NSIndexPath *)indexPath {
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BOOL selectable = [self isSelectable:indexPath];
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NSString * const kCellIdentifier = selectable ? @"Cell" : @"GreyCell";
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UITableViewCell *cell =
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[tableView dequeueReusableCellWithIdentifier:kCellIdentifier];
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if (cell == nil) {
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cell =
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[[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
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reuseIdentifier:kCellIdentifier] autorelease];
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if (selectable) {
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cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
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} else {
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cell.selectionStyle = UITableViewCellSelectionStyleNone;
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cell.textLabel.textColor = [UIColor lightGrayColor];
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}
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}
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cell.textLabel.text = (selectable ? kMenuOptions : kUnselectableMenuOptions)
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[indexPath.row];
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return cell;
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}
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- (void)tableView:(UITableView *)tableView
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didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
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if (![self isSelectable:indexPath]) {
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return;
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}
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Class nibClass = NSClassFromString(kNibNames[indexPath.row]);
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UIViewController *controller =
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[[[nibClass alloc] initWithNibName:nil bundle:nil] autorelease];
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controller.navigationItem.title = kMenuOptions[indexPath.row];
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[self.navigationController pushViewController:controller animated:YES];
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}
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#pragma mark - Helper methods
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- (BOOL)isSelectable:(NSIndexPath *)indexPath {
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if (indexPath.row == kMomentsIndex) {
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if (!momentsIndexPath_) {
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momentsIndexPath_ = [indexPath retain];
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}
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// To use Google+ History API, you need to sign in.
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GooglePlusSampleAppDelegate *appDelegate = (GooglePlusSampleAppDelegate *)
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[[UIApplication sharedApplication] delegate];
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return appDelegate.auth && appDelegate.plusMomentsWriteScope;
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}
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return YES;
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}
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@end
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