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CDVThemeableBrowser.m
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CDVThemeableBrowser.m
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/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
*/
#import "CDVThemeableBrowser.h"
#import <Cordova/CDVPluginResult.h>
#import <Cordova/CDVUserAgentUtil.h>
#define kThemeableBrowserTargetSelf @"_self"
#define kThemeableBrowserTargetSystem @"_system"
#define kThemeableBrowserTargetBlank @"_blank"
#define kThemeableBrowserToolbarBarPositionBottom @"bottom"
#define kThemeableBrowserToolbarBarPositionTop @"top"
#define kThemeableBrowserAlignLeft @"left"
#define kThemeableBrowserAlignRight @"right"
#define kThemeableBrowserPropEvent @"event"
#define kThemeableBrowserPropLabel @"label"
#define kThemeableBrowserPropColor @"color"
#define kThemeableBrowserPropHeight @"height"
#define kThemeableBrowserPropImage @"image"
#define kThemeableBrowserPropWwwImage @"wwwImage"
#define kThemeableBrowserPropImagePressed @"imagePressed"
#define kThemeableBrowserPropWwwImagePressed @"wwwImagePressed"
#define kThemeableBrowserPropWwwImageDensity @"wwwImageDensity"
#define kThemeableBrowserPropStaticText @"staticText"
#define kThemeableBrowserPropShowPageTitle @"showPageTitle"
#define kThemeableBrowserPropAlign @"align"
#define kThemeableBrowserPropTitle @"title"
#define kThemeableBrowserPropCancel @"cancel"
#define kThemeableBrowserPropItems @"items"
#define kThemeableBrowserEmitError @"ThemeableBrowserError"
#define kThemeableBrowserEmitWarning @"ThemeableBrowserWarning"
#define kThemeableBrowserEmitCodeCritical @"critical"
#define kThemeableBrowserEmitCodeLoadFail @"loadfail"
#define kThemeableBrowserEmitCodeUnexpected @"unexpected"
#define kThemeableBrowserEmitCodeUndefined @"undefined"
#define TOOLBAR_DEF_HEIGHT 44.0
#define LOCATIONBAR_HEIGHT 21.0
#define FOOTER_HEIGHT ((TOOLBAR_HEIGHT) + (LOCATIONBAR_HEIGHT))
#pragma mark CDVThemeableBrowser
@interface CDVThemeableBrowser () {
BOOL _isShown;
int _framesOpened; // number of frames opened since the last time browser exited
NSURL *initUrl; // initial URL ThemeableBrowser opened with
NSURL *originalUrl;
}
@end
@implementation CDVThemeableBrowser
#ifdef __CORDOVA_4_0_0
- (void)pluginInitialize
{
_isShown = NO;
_framesOpened = 0;
_callbackIdPattern = nil;
}
#else
- (CDVThemeableBrowser*)initWithWebView:(UIWebView*)theWebView
{
self = [super initWithWebView:theWebView];
if (self != nil) {
_isShown = NO;
_framesOpened = 0;
_callbackIdPattern = nil;
}
return self;
}
#endif
- (void)onReset
{
[self close:nil];
}
- (void)close:(CDVInvokedUrlCommand*)command
{
if (self.themeableBrowserViewController == nil) {
[self emitWarning:kThemeableBrowserEmitCodeUnexpected
withMessage:@"Close called but already closed."];
return;
}
// Things are cleaned up in browserExit.
[self.themeableBrowserViewController close];
}
- (BOOL) isSystemUrl:(NSURL*)url
{
NSDictionary *systemUrls = @{
@"itunes.apple.com": @YES,
@"search.itunes.apple.com": @YES,
@"appsto.re": @YES
};
if (systemUrls[[url host]]) {
return YES;
}
return NO;
}
- (void)open:(CDVInvokedUrlCommand*)command
{
CDVPluginResult* pluginResult;
NSString* url = [command argumentAtIndex:0];
NSString* target = [command argumentAtIndex:1 withDefault:kThemeableBrowserTargetSelf];
NSString* options = [command argumentAtIndex:2 withDefault:@"" andClass:[NSString class]];
self.callbackId = command.callbackId;
if (url != nil) {
#ifdef __CORDOVA_4_0_0
NSURL* baseUrl = [self.webViewEngine URL];
#else
NSURL* baseUrl = [self.webView.request URL];
#endif
NSURL* absoluteUrl = [[NSURL URLWithString:url relativeToURL:baseUrl] absoluteURL];
initUrl = absoluteUrl;
if ([self isSystemUrl:absoluteUrl]) {
target = kThemeableBrowserTargetSystem;
}
if ([target isEqualToString:kThemeableBrowserTargetSelf]) {
[self openInCordovaWebView:absoluteUrl withOptions:options];
} else if ([target isEqualToString:kThemeableBrowserTargetSystem]) {
[self openInSystem:absoluteUrl];
} else { // _blank or anything else
[self openInThemeableBrowser:absoluteUrl withOptions:options];
}
pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
} else {
pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsString:@"incorrect number of arguments"];
}
[pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
[self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
}
- (void)reload:(CDVInvokedUrlCommand*)command
{
if (self.themeableBrowserViewController) {
[self.themeableBrowserViewController reload];
}
}
- (CDVThemeableBrowserOptions*)parseOptions:(NSString*)options
{
CDVThemeableBrowserOptions* obj = [[CDVThemeableBrowserOptions alloc] init];
if (options && [options length] > 0) {
// Min support, iOS 5. We will use the JSON parser that comes with iOS
// 5.
NSError *error = nil;
NSData *data = [options dataUsingEncoding:NSUTF8StringEncoding];
id jsonObj = [NSJSONSerialization
JSONObjectWithData:data
options:0
error:&error];
if(error) {
[self emitError:kThemeableBrowserEmitCodeCritical
withMessage:[NSString stringWithFormat:@"Invalid JSON %@", error]];
} else if([jsonObj isKindOfClass:[NSDictionary class]]) {
NSDictionary *dict = jsonObj;
for (NSString *key in dict) {
if ([obj respondsToSelector:NSSelectorFromString(key)]) {
[obj setValue:dict[key] forKey:key];
}
}
}
} else {
[self emitWarning:kThemeableBrowserEmitCodeUndefined
withMessage:@"No config was given, defaults will be used, which is quite boring."];
}
return obj;
}
- (void)openInThemeableBrowser:(NSURL*)url withOptions:(NSString*)options
{
CDVThemeableBrowserOptions* browserOptions = [self parseOptions:options];
// Among all the options, there are a few that ThemedBrowser would like to
// disable, since ThemedBrowser's purpose is to provide an integrated look
// and feel that is consistent across platforms. We'd do this hack to
// minimize changes from the original ThemeableBrowser so when merge from the
// ThemeableBrowser is needed, it wouldn't be super pain in the ass.
browserOptions.toolbarposition = kThemeableBrowserToolbarBarPositionTop;
if (browserOptions.clearcache) {
NSHTTPCookie *cookie;
NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (cookie in [storage cookies])
{
if (![cookie.domain isEqual: @".^filecookies^"]) {
[storage deleteCookie:cookie];
}
}
}
if (browserOptions.clearsessioncache) {
NSHTTPCookie *cookie;
NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (cookie in [storage cookies])
{
if (![cookie.domain isEqual: @".^filecookies^"] && cookie.isSessionOnly) {
[storage deleteCookie:cookie];
}
}
}
if (self.themeableBrowserViewController == nil) {
NSString* originalUA = [CDVUserAgentUtil originalUserAgent];
self.themeableBrowserViewController = [[CDVThemeableBrowserViewController alloc]
initWithUserAgent:originalUA prevUserAgent:[self.commandDelegate userAgent]
browserOptions: browserOptions
navigationDelete:self
statusBarStyle:[UIApplication sharedApplication].statusBarStyle];
if ([self.viewController conformsToProtocol:@protocol(CDVScreenOrientationDelegate)]) {
self.themeableBrowserViewController.orientationDelegate = (UIViewController <CDVScreenOrientationDelegate>*)self.viewController;
}
}
#warning 后添加
if (self.navigationController == nil) {
[self getNavController];
}
[self.themeableBrowserViewController showLocationBar:browserOptions.location];
[self.themeableBrowserViewController showToolBar:YES:browserOptions.toolbarposition];
if (browserOptions.closebuttoncaption != nil) {
// [self.themeableBrowserViewController setCloseButtonTitle:browserOptions.closebuttoncaption];
}
// Set Presentation Style
UIModalPresentationStyle presentationStyle = UIModalPresentationFullScreen; // default
if (browserOptions.presentationstyle != nil) {
if ([[browserOptions.presentationstyle lowercaseString] isEqualToString:@"pagesheet"]) {
presentationStyle = UIModalPresentationPageSheet;
} else if ([[browserOptions.presentationstyle lowercaseString] isEqualToString:@"formsheet"]) {
presentationStyle = UIModalPresentationFormSheet;
}
}
self.themeableBrowserViewController.modalPresentationStyle = presentationStyle;
// Set Transition Style
UIModalTransitionStyle transitionStyle = UIModalTransitionStyleCoverVertical; // default
if (browserOptions.transitionstyle != nil) {
if ([[browserOptions.transitionstyle lowercaseString] isEqualToString:@"fliphorizontal"]) {
transitionStyle = UIModalTransitionStyleFlipHorizontal;
} else if ([[browserOptions.transitionstyle lowercaseString] isEqualToString:@"crossdissolve"]) {
transitionStyle = UIModalTransitionStyleCrossDissolve;
}
}
self.themeableBrowserViewController.modalTransitionStyle = transitionStyle;
// prevent webView from bouncing
if (browserOptions.disallowoverscroll) {
if ([self.themeableBrowserViewController.webView respondsToSelector:@selector(scrollView)]) {
((UIScrollView*)[self.themeableBrowserViewController.webView scrollView]).bounces = NO;
} else {
for (id subview in self.themeableBrowserViewController.webView.subviews) {
if ([[subview class] isSubclassOfClass:[UIScrollView class]]) {
((UIScrollView*)subview).bounces = NO;
}
}
}
}
// UIWebView options
self.themeableBrowserViewController.webView.scalesPageToFit = browserOptions.zoom;
self.themeableBrowserViewController.webView.mediaPlaybackRequiresUserAction = browserOptions.mediaplaybackrequiresuseraction;
self.themeableBrowserViewController.webView.allowsInlineMediaPlayback = browserOptions.allowinlinemediaplayback;
if (IsAtLeastiOSVersion(@"6.0")) {
self.themeableBrowserViewController.webView.keyboardDisplayRequiresUserAction = browserOptions.keyboarddisplayrequiresuseraction;
self.themeableBrowserViewController.webView.suppressesIncrementalRendering = browserOptions.suppressesincrementalrendering;
}
[self.themeableBrowserViewController navigateTo:url];
if (!browserOptions.hidden) {
[self show:nil withAnimation:!browserOptions.disableAnimation];
}
}
- (void)show:(CDVInvokedUrlCommand*)command
{
[self show:command withAnimation:YES];
}
- (void)show:(CDVInvokedUrlCommand*)command withAnimation:(BOOL)animated
{
if (self.themeableBrowserViewController == nil) {
[self emitWarning:kThemeableBrowserEmitCodeUnexpected
withMessage:@"Show called but already closed."];
return;
}
if (_isShown) {
[self emitWarning:kThemeableBrowserEmitCodeUnexpected
withMessage:@"Show called but already shown"];
return;
}
_isShown = YES;
CDVThemeableBrowserNavigationController* nav = [[CDVThemeableBrowserNavigationController alloc]
initWithRootViewController:self.themeableBrowserViewController];
nav.orientationDelegate = self.themeableBrowserViewController;
nav.navigationBarHidden = YES;
// Run later to avoid the "took a long time" log message.
dispatch_async(dispatch_get_main_queue(), ^{
if (self.themeableBrowserViewController != nil) {
[self.navigationController pushViewController:self.themeableBrowserViewController animated:YES];
// [self.viewController presentViewController:nav animated:animated completion:nil];
}
});
}
- (void)getNavController {
UIWindow * window = [[UIApplication sharedApplication] keyWindow];
if (window.windowLevel != UIWindowLevelNormal)
{
NSArray *windows = [[UIApplication sharedApplication] windows];
for(UIWindow * tmpWin in windows)
{
if (tmpWin.windowLevel == UIWindowLevelNormal)
{
window = tmpWin;
break;
}
}
}
UIView *frontView = [[window subviews] objectAtIndex:0];
id nextResponder = [frontView nextResponder];
if ([nextResponder isKindOfClass:[UIViewController class]])
self.navigationController = nextResponder;
else
self.navigationController = (UINavigationController*)window.rootViewController;
}
- (void)openInCordovaWebView:(NSURL*)url withOptions:(NSString*)options
{
NSURLRequest* request = [NSURLRequest requestWithURL:url];
#ifdef __CORDOVA_4_0_0
// the webview engine itself will filter for this according to <allow-navigation> policy
// in config.xml for cordova-ios-4.0
[self.webViewEngine loadRequest:request];
#else
if ([self.commandDelegate URLIsWhitelisted:url]) {
[self.webView loadRequest:request];
} else { // this assumes the openInThemeableBrowser can be excepted from the white-list
[self openInThemeableBrowser:url withOptions:options];
}
#endif
}
- (void)openInSystem:(NSURL*)url
{
if ([[UIApplication sharedApplication] canOpenURL:url]) {
[[UIApplication sharedApplication] openURL:url];
} else { // handle any custom schemes to plugins
[[NSNotificationCenter defaultCenter] postNotification:[NSNotification notificationWithName:CDVPluginHandleOpenURLNotification object:url]];
}
}
// This is a helper method for the inject{Script|Style}{Code|File} API calls, which
// provides a consistent method for injecting JavaScript code into the document.
//
// If a wrapper string is supplied, then the source string will be JSON-encoded (adding
// quotes) and wrapped using string formatting. (The wrapper string should have a single
// '%@' marker).
//
// If no wrapper is supplied, then the source string is executed directly.
- (void)injectDeferredObject:(NSString*)source withWrapper:(NSString*)jsWrapper
{
if (!_injectedIframeBridge) {
_injectedIframeBridge = YES;
// Create an iframe bridge in the new document to communicate with the CDVThemeableBrowserViewController
[self.themeableBrowserViewController.webView stringByEvaluatingJavaScriptFromString:@"(function(d){var e = _cdvIframeBridge = d.createElement('iframe');e.style.display='none';d.body.appendChild(e);})(document)"];
}
if (jsWrapper != nil) {
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:@[source] options:0 error:nil];
NSString* sourceArrayString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
if (sourceArrayString) {
NSString* sourceString = [sourceArrayString substringWithRange:NSMakeRange(1, [sourceArrayString length] - 2)];
NSString* jsToInject = [NSString stringWithFormat:jsWrapper, sourceString];
[self.themeableBrowserViewController.webView stringByEvaluatingJavaScriptFromString:jsToInject];
}
} else {
[self.themeableBrowserViewController.webView stringByEvaluatingJavaScriptFromString:source];
}
}
- (void)injectScriptCode:(CDVInvokedUrlCommand*)command
{
NSString* jsWrapper = nil;
if ((command.callbackId != nil) && ![command.callbackId isEqualToString:@"INVALID"]) {
jsWrapper = [NSString stringWithFormat:@"_cdvIframeBridge.src='gap-iab://%@/'+encodeURIComponent(JSON.stringify([eval(%%@)]));", command.callbackId];
}
[self injectDeferredObject:[command argumentAtIndex:0] withWrapper:jsWrapper];
}
- (void)injectScriptFile:(CDVInvokedUrlCommand*)command
{
NSString* jsWrapper;
if ((command.callbackId != nil) && ![command.callbackId isEqualToString:@"INVALID"]) {
jsWrapper = [NSString stringWithFormat:@"(function(d) { var c = d.createElement('script'); c.src = %%@; c.onload = function() { _cdvIframeBridge.src='gap-iab://%@'; }; d.body.appendChild(c); })(document)", command.callbackId];
} else {
jsWrapper = @"(function(d) { var c = d.createElement('script'); c.src = %@; d.body.appendChild(c); })(document)";
}
[self injectDeferredObject:[command argumentAtIndex:0] withWrapper:jsWrapper];
}
- (void)injectStyleCode:(CDVInvokedUrlCommand*)command
{
NSString* jsWrapper;
if ((command.callbackId != nil) && ![command.callbackId isEqualToString:@"INVALID"]) {
jsWrapper = [NSString stringWithFormat:@"(function(d) { var c = d.createElement('style'); c.innerHTML = %%@; c.onload = function() { _cdvIframeBridge.src='gap-iab://%@'; }; d.body.appendChild(c); })(document)", command.callbackId];
} else {
jsWrapper = @"(function(d) { var c = d.createElement('style'); c.innerHTML = %@; d.body.appendChild(c); })(document)";
}
[self injectDeferredObject:[command argumentAtIndex:0] withWrapper:jsWrapper];
}
- (void)injectStyleFile:(CDVInvokedUrlCommand*)command
{
NSString* jsWrapper;
if ((command.callbackId != nil) && ![command.callbackId isEqualToString:@"INVALID"]) {
jsWrapper = [NSString stringWithFormat:@"(function(d) { var c = d.createElement('link'); c.rel='stylesheet'; c.type='text/css'; c.href = %%@; c.onload = function() { _cdvIframeBridge.src='gap-iab://%@'; }; d.body.appendChild(c); })(document)", command.callbackId];
} else {
jsWrapper = @"(function(d) { var c = d.createElement('link'); c.rel='stylesheet', c.type='text/css'; c.href = %@; d.body.appendChild(c); })(document)";
}
[self injectDeferredObject:[command argumentAtIndex:0] withWrapper:jsWrapper];
}
- (BOOL)isValidCallbackId:(NSString *)callbackId
{
NSError *err = nil;
// Initialize on first use
if (self.callbackIdPattern == nil) {
self.callbackIdPattern = [NSRegularExpression regularExpressionWithPattern:@"^ThemeableBrowser[0-9]{1,10}$" options:0 error:&err];
if (err != nil) {
// Couldn't initialize Regex; No is safer than Yes.
return NO;
}
}
if ([self.callbackIdPattern firstMatchInString:callbackId options:0 range:NSMakeRange(0, [callbackId length])]) {
return YES;
}
return NO;
}
/**
* The iframe bridge provided for the ThemeableBrowser is capable of executing any oustanding callback belonging
* to the ThemeableBrowser plugin. Care has been taken that other callbacks cannot be triggered, and that no
* other code execution is possible.
*
* To trigger the bridge, the iframe (or any other resource) should attempt to load a url of the form:
*
* gap-iab://<callbackId>/<arguments>
*
* where <callbackId> is the string id of the callback to trigger (something like "ThemeableBrowser0123456789")
*
* If present, the path component of the special gap-iab:// url is expected to be a URL-escaped JSON-encoded
* value to pass to the callback. [NSURL path] should take care of the URL-unescaping, and a JSON_EXCEPTION
* is returned if the JSON is invalid.
*/
- (BOOL)webView:(UIWebView*)theWebView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType
{
NSURL* url = request.URL;
BOOL isTopLevelNavigation = [request.URL isEqual:[request mainDocumentURL]];
// See if the url uses the 'gap-iab' protocol. If so, the host should be the id of a callback to execute,
// and the path, if present, should be a JSON-encoded value to pass to the callback.
if ([[url scheme] isEqualToString:@"gap-iab"]) {
NSString* scriptCallbackId = [url host];
CDVPluginResult* pluginResult = nil;
if ([self isValidCallbackId:scriptCallbackId]) {
NSString* scriptResult = [url path];
NSError* __autoreleasing error = nil;
// The message should be a JSON-encoded array of the result of the script which executed.
if ((scriptResult != nil) && ([scriptResult length] > 1)) {
scriptResult = [scriptResult substringFromIndex:1];
NSData* decodedResult = [NSJSONSerialization JSONObjectWithData:[scriptResult dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:&error];
if ((error == nil) && [decodedResult isKindOfClass:[NSArray class]]) {
pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsArray:(NSArray*)decodedResult];
} else {
pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_JSON_EXCEPTION];
}
} else {
pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsArray:@[]];
}
[self.commandDelegate sendPluginResult:pluginResult callbackId:scriptCallbackId];
return NO;
}
} else if ([self isSystemUrl:url]) {
// Do not allow iTunes store links from ThemeableBrowser as they do not work
// instead open them with App Store app or Safari
[[UIApplication sharedApplication] openURL:url];
// only in the case where a redirect link is opened in a freshly started
// ThemeableBrowser frame, trigger ThemeableBrowserRedirectExternalOnOpen
// event. This event can be handled in the app-side -- for instance, to
// close the ThemeableBrowser as the frame will contain a blank page
if (
originalUrl != nil
&& [[originalUrl absoluteString] isEqualToString:[initUrl absoluteString]]
&& _framesOpened == 1
) {
NSDictionary *event = @{
@"type": @"ThemeableBrowserRedirectExternalOnOpen",
@"message": @"ThemeableBrowser redirected to open an external app on fresh start"
};
[self emitEvent:event];
}
// do not load content in the web view since this URL is handled by an
// external app
return NO;
} else if ((self.callbackId != nil) && isTopLevelNavigation) {
// Send a loadstart event for each top-level navigation (includes redirects).
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK
messageAsDictionary:@{@"type":@"loadstart", @"url":[url absoluteString]}];
[pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
[self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
}
// originalUrl is used to detect redirect. This works by storing the
// request URL of the original frame when it's about to be loaded. A redirect
// will cause shouldStartLoadWithRequest to be called again before the
// original frame finishes loading (originalUrl becomes nil upon the frame
// finishing loading). On second time shouldStartLoadWithRequest
// is called, this stored original frame's URL can be compared against
// the URL of the new request. A mismatch implies redirect.
originalUrl = request.URL;
return YES;
}
- (void)webViewDidStartLoad:(UIWebView*)theWebView
{
_injectedIframeBridge = NO;
_framesOpened++;
}
- (void)webViewDidFinishLoad:(UIWebView*)theWebView
{
if (self.callbackId != nil) {
// TODO: It would be more useful to return the URL the page is actually on (e.g. if it's been redirected).
NSString* url = [self.themeableBrowserViewController.currentURL absoluteString];
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK
messageAsDictionary:@{@"type":@"loadstop", @"url":url}];
[pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
// once a web view finished loading a frame, reset the stored original
// URL of the frame so that it can be used to detect next redirection
originalUrl = nil;
[self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
}
}
- (void)webView:(UIWebView*)theWebView didFailLoadWithError:(NSError*)error
{
if (self.callbackId != nil) {
NSString* url = [self.themeableBrowserViewController.currentURL absoluteString];
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR
messageAsDictionary:@{@"type":@"loaderror", @"url":url, @"code": [NSNumber numberWithInteger:error.code], @"message": error.localizedDescription}];
[pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
[self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
}
}
- (void)browserExit
{
if (self.callbackId != nil) {
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK
messageAsDictionary:@{@"type":@"exit"}];
[self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
self.callbackId = nil;
}
// Set navigationDelegate to nil to ensure no callbacks are received from it.
self.themeableBrowserViewController.navigationDelegate = nil;
// Don't recycle the ViewController since it may be consuming a lot of memory.
// Also - this is required for the PDF/User-Agent bug work-around.
self.themeableBrowserViewController = nil;
self.callbackId = nil;
self.callbackIdPattern = nil;
_framesOpened = 0;
_isShown = NO;
}
- (void)emitEvent:(NSDictionary*)event
{
if (self.callbackId != nil) {
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK
messageAsDictionary:event];
[pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
[self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
}
}
- (void)emitError:(NSString*)code withMessage:(NSString*)message
{
NSDictionary *event = @{
@"type": kThemeableBrowserEmitError,
@"code": code,
@"message": message
};
[self emitEvent:event];
}
- (void)emitWarning:(NSString*)code withMessage:(NSString*)message
{
NSDictionary *event = @{
@"type": kThemeableBrowserEmitWarning,
@"code": code,
@"message": message
};
[self emitEvent:event];
}
@end
#pragma mark CDVThemeableBrowserViewController
@implementation CDVThemeableBrowserViewController
@synthesize currentURL;
- (id)initWithUserAgent:(NSString*)userAgent prevUserAgent:(NSString*)prevUserAgent browserOptions: (CDVThemeableBrowserOptions*) browserOptions navigationDelete:(CDVThemeableBrowser*) navigationDelegate statusBarStyle:(UIStatusBarStyle) statusBarStyle
{
self = [super init];
if (self != nil) {
_userAgent = userAgent;
_prevUserAgent = prevUserAgent;
_browserOptions = browserOptions;
#ifdef __CORDOVA_4_0_0
_webViewDelegate = [[CDVUIWebViewDelegate alloc] initWithDelegate:self];
#else
_webViewDelegate = [[CDVWebViewDelegate alloc] initWithDelegate:self];
#endif
_navigationDelegate = navigationDelegate;
_statusBarStyle = statusBarStyle;
[self createViews];
}
return self;
}
- (void)createViews
{
// We create the views in code for primarily for ease of upgrades and not requiring an external .xib to be included
CGRect webViewBounds = self.view.bounds;
BOOL toolbarIsAtBottom = ![_browserOptions.toolbarposition isEqualToString:kThemeableBrowserToolbarBarPositionTop];
NSDictionary* toolbarProps = _browserOptions.toolbar;
CGFloat toolbarHeight = [self getFloatFromDict:toolbarProps withKey:kThemeableBrowserPropHeight withDefault:TOOLBAR_DEF_HEIGHT];
if (!_browserOptions.fullscreen) {
webViewBounds.size.height -= toolbarHeight;
}
self.webView = [[UIWebView alloc] initWithFrame:webViewBounds];
self.webView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
[self.view addSubview:self.webView];
[self.view sendSubviewToBack:self.webView];
self.webView.delegate = _webViewDelegate;
self.webView.backgroundColor = [UIColor whiteColor];
self.webView.clearsContextBeforeDrawing = YES;
self.webView.clipsToBounds = YES;
self.webView.contentMode = UIViewContentModeScaleToFill;
self.webView.multipleTouchEnabled = YES;
self.webView.opaque = YES;
self.webView.scalesPageToFit = NO;
self.webView.userInteractionEnabled = YES;
self.spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
self.spinner.alpha = 1.000;
self.spinner.autoresizesSubviews = YES;
self.spinner.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleTopMargin;
self.spinner.clearsContextBeforeDrawing = NO;
self.spinner.clipsToBounds = NO;
self.spinner.contentMode = UIViewContentModeScaleToFill;
self.spinner.frame = CGRectMake(454.0, 231.0, 20.0, 20.0);
self.spinner.hidden = YES;
self.spinner.hidesWhenStopped = YES;
self.spinner.multipleTouchEnabled = NO;
self.spinner.opaque = NO;
self.spinner.userInteractionEnabled = NO;
[self.spinner stopAnimating];
CGFloat toolbarY = toolbarIsAtBottom ? self.view.bounds.size.height - toolbarHeight : 0.0;
CGRect toolbarFrame = CGRectMake(0.0, toolbarY, self.view.bounds.size.width, toolbarHeight);
self.toolbar = [[UIView alloc] initWithFrame:toolbarFrame];
self.toolbar.alpha = 1.000;
self.toolbar.autoresizesSubviews = YES;
self.toolbar.autoresizingMask = toolbarIsAtBottom ? (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin) : UIViewAutoresizingFlexibleWidth;
self.toolbar.clearsContextBeforeDrawing = NO;
self.toolbar.clipsToBounds = YES;
self.toolbar.contentMode = UIViewContentModeScaleToFill;
self.toolbar.hidden = NO;
self.toolbar.multipleTouchEnabled = NO;
self.toolbar.opaque = NO;
self.toolbar.userInteractionEnabled = YES;
self.toolbar.backgroundColor = [CDVThemeableBrowserViewController colorFromRGBA:[self getStringFromDict:toolbarProps withKey:kThemeableBrowserPropColor withDefault:@"#ffffffff"]];
if (toolbarProps[kThemeableBrowserPropImage] || toolbarProps[kThemeableBrowserPropWwwImage]) {
UIImage *image = [self getImage:toolbarProps[kThemeableBrowserPropImage]
altPath:toolbarProps[kThemeableBrowserPropWwwImage]
altDensity:[toolbarProps[kThemeableBrowserPropWwwImageDensity] doubleValue]];
if (image) {
self.toolbar.backgroundColor = [UIColor colorWithPatternImage:image];
} else {
[self.navigationDelegate emitError:kThemeableBrowserEmitCodeLoadFail
withMessage:[NSString stringWithFormat:@"Image for toolbar, %@, failed to load.",
toolbarProps[kThemeableBrowserPropImage]
? toolbarProps[kThemeableBrowserPropImage] : toolbarProps[kThemeableBrowserPropWwwImage]]];
}
}
CGFloat labelInset = 5.0;
float locationBarY = self.view.bounds.size.height - LOCATIONBAR_HEIGHT;
self.addressLabel = [[UILabel alloc] initWithFrame:CGRectMake(labelInset, locationBarY, self.view.bounds.size.width - labelInset, LOCATIONBAR_HEIGHT)];
self.addressLabel.adjustsFontSizeToFitWidth = NO;
self.addressLabel.alpha = 1.000;
self.addressLabel.autoresizesSubviews = YES;
self.addressLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin;
self.addressLabel.backgroundColor = [UIColor clearColor];
self.addressLabel.baselineAdjustment = UIBaselineAdjustmentAlignCenters;
self.addressLabel.clearsContextBeforeDrawing = YES;
self.addressLabel.clipsToBounds = YES;
self.addressLabel.contentMode = UIViewContentModeScaleToFill;
self.addressLabel.enabled = YES;
self.addressLabel.hidden = NO;
self.addressLabel.lineBreakMode = NSLineBreakByTruncatingTail;
if ([self.addressLabel respondsToSelector:NSSelectorFromString(@"setMinimumScaleFactor:")]) {
[self.addressLabel setValue:@(10.0/[UIFont labelFontSize]) forKey:@"minimumScaleFactor"];
} else if ([self.addressLabel respondsToSelector:NSSelectorFromString(@"setMinimumFontSize:")]) {
[self.addressLabel setValue:@(10.0) forKey:@"minimumFontSize"];
}
self.addressLabel.multipleTouchEnabled = NO;
self.addressLabel.numberOfLines = 1;
self.addressLabel.opaque = NO;
self.addressLabel.shadowOffset = CGSizeMake(0.0, -1.0);
self.addressLabel.text = NSLocalizedString(@"Loading...", nil);
self.addressLabel.textAlignment = NSTextAlignmentLeft;
self.addressLabel.textColor = [UIColor colorWithWhite:1.000 alpha:1.000];
self.addressLabel.userInteractionEnabled = NO;
self.closeButton = [self createButton:_browserOptions.closeButton action:@selector(close) withDescription:@"close button"];
self.backButton = [self createButton:_browserOptions.backButton action:@selector(goBack:) withDescription:@"back button"];
self.forwardButton = [self createButton:_browserOptions.forwardButton action:@selector(goForward:) withDescription:@"forward button"];
self.menuButton = [self createButton:_browserOptions.menu action:@selector(goMenu:) withDescription:@"menu button"];
// Arramge toolbar buttons with respect to user configuration.
CGFloat leftWidth = 0;
CGFloat rightWidth = 0;
// Both left and right side buttons will be ordered from outside to inside.
NSMutableArray* leftButtons = [NSMutableArray new];
NSMutableArray* rightButtons = [NSMutableArray new];
if (self.closeButton) {
CGFloat width = [self getWidthFromButton:self.closeButton];
if ([kThemeableBrowserAlignRight isEqualToString:_browserOptions.closeButton[kThemeableBrowserPropAlign]]) {
[rightButtons addObject:self.closeButton];
rightWidth += width;
} else {
[leftButtons addObject:self.closeButton];
leftWidth += width;
}
}
if (self.menuButton) {
CGFloat width = [self getWidthFromButton:self.menuButton];
if ([kThemeableBrowserAlignRight isEqualToString:_browserOptions.menu[kThemeableBrowserPropAlign]]) {
[rightButtons addObject:self.menuButton];
rightWidth += width;
} else {
[leftButtons addObject:self.menuButton];
leftWidth += width;
}
}
// Back and forward buttons must be added with special ordering logic such
// that back button is always on the left of forward button if both buttons
// are on the same side.
if (self.backButton && ![kThemeableBrowserAlignRight isEqualToString:_browserOptions.backButton[kThemeableBrowserPropAlign]]) {
CGFloat width = [self getWidthFromButton:self.backButton];
[leftButtons addObject:self.backButton];
leftWidth += width;
}
if (self.forwardButton && [kThemeableBrowserAlignRight isEqualToString:_browserOptions.forwardButton[kThemeableBrowserPropAlign]]) {
CGFloat width = [self getWidthFromButton:self.forwardButton];
[rightButtons addObject:self.forwardButton];
rightWidth += width;
}
if (self.forwardButton && ![kThemeableBrowserAlignRight isEqualToString:_browserOptions.forwardButton[kThemeableBrowserPropAlign]]) {
CGFloat width = [self getWidthFromButton:self.forwardButton];
[leftButtons addObject:self.forwardButton];
leftWidth += width;
}
if (self.backButton && [kThemeableBrowserAlignRight isEqualToString:_browserOptions.backButton[kThemeableBrowserPropAlign]]) {
CGFloat width = [self getWidthFromButton:self.backButton];
[rightButtons addObject:self.backButton];
rightWidth += width;
}
NSArray* customButtons = _browserOptions.customButtons;
if (customButtons) {
NSInteger cnt = 0;
// Reverse loop because we are laying out from outer to inner.
for (NSDictionary* customButton in [customButtons reverseObjectEnumerator]) {
UIButton* button = [self createButton:customButton action:@selector(goCustomButton:) withDescription:[NSString stringWithFormat:@"custom button at %ld", (long)cnt]];
if (button) {
button.tag = cnt;
CGFloat width = [self getWidthFromButton:button];
if ([kThemeableBrowserAlignRight isEqualToString:customButton[kThemeableBrowserPropAlign]]) {
[rightButtons addObject:button];
rightWidth += width;
} else {
[leftButtons addObject:button];
leftWidth += width;
}
}
cnt += 1;
}
}
self.rightButtons = rightButtons;
self.leftButtons = leftButtons;
for (UIButton* button in self.leftButtons) {
[self.toolbar addSubview:button];
}
for (UIButton* button in self.rightButtons) {
[self.toolbar addSubview:button];
}
[self layoutButtons];
self.titleOffset = fmaxf(leftWidth, rightWidth);
// The correct positioning of title is not that important right now, since
// rePositionViews will take care of it a bit later.
self.titleLabel = nil;
if (_browserOptions.title) {
self.titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 0, 10, toolbarHeight)];
self.titleLabel.textAlignment = NSTextAlignmentCenter;
self.titleLabel.numberOfLines = 1;
self.titleLabel.lineBreakMode = NSLineBreakByTruncatingTail;
self.titleLabel.textColor = [CDVThemeableBrowserViewController colorFromRGBA:[self getStringFromDict:_browserOptions.title withKey:kThemeableBrowserPropColor withDefault:@"#000000ff"]];
if (_browserOptions.title[kThemeableBrowserPropStaticText]) {
self.titleLabel.text = _browserOptions.title[kThemeableBrowserPropStaticText];
}
[self.toolbar addSubview:self.titleLabel];
}
self.view.backgroundColor = [CDVThemeableBrowserViewController colorFromRGBA:[self getStringFromDict:_browserOptions.statusbar withKey:kThemeableBrowserPropColor withDefault:@"#ffffffff"]];
[self.view addSubview:self.toolbar];
// [self.view addSubview:self.addressLabel];
// [self.view addSubview:self.spinner];
}
/**
* This is a rather unintuitive helper method to load images. The reason why this method exists
* is because due to some service limitations, one may not be able to add images to native
* resource bundle. So this method offers a way to load image from www contents instead.
* However loading from native resource bundle is already preferred over loading from www. So
* if name is given, then it simply loads from resource bundle and the other two parameters are
* ignored. If name is not given, then altPath is assumed to be a file path _under_ www and
* altDensity is the desired density of the given image file, because without native resource
* bundle, we can't tell what densitiy the image is supposed to be so it needs to be given
* explicitly.
*/
- (UIImage*) getImage:(NSString*) name altPath:(NSString*) altPath altDensity:(CGFloat) altDensity
{
UIImage* result = nil;
if (name) {
result = [UIImage imageNamed:name];
} else if (altPath) {
NSString* path = [[[NSBundle mainBundle] bundlePath]
stringByAppendingPathComponent:[NSString pathWithComponents:@[@"www", altPath]]];
if (!altDensity) {
altDensity = 1.0;
}
NSData* data = [NSData dataWithContentsOfFile:path];
result = [UIImage imageWithData:data scale:altDensity];
}
return result;
}
- (UIButton*) createButton:(NSDictionary*) buttonProps action:(SEL)action withDescription:(NSString*)description
{
UIButton* result = nil;
if (buttonProps) {
UIImage *buttonImage = nil;
if (buttonProps[kThemeableBrowserPropImage] || buttonProps[kThemeableBrowserPropWwwImage]) {
buttonImage = [self getImage:buttonProps[kThemeableBrowserPropImage]
altPath:buttonProps[kThemeableBrowserPropWwwImage]
altDensity:[buttonProps[kThemeableBrowserPropWwwImageDensity] doubleValue]];
if (!buttonImage) {
[self.navigationDelegate emitError:kThemeableBrowserEmitCodeLoadFail
withMessage:[NSString stringWithFormat:@"Image for %@, %@, failed to load.",
description,
buttonProps[kThemeableBrowserPropImage]
? buttonProps[kThemeableBrowserPropImage] : buttonProps[kThemeableBrowserPropWwwImage]]];
}
} else {
[self.navigationDelegate emitWarning:kThemeableBrowserEmitCodeUndefined
withMessage:[NSString stringWithFormat:@"Image for %@ is not defined. Button will not be shown.", description]];
}
UIImage *buttonImagePressed = nil;
if (buttonProps[kThemeableBrowserPropImagePressed] || buttonProps[kThemeableBrowserPropWwwImagePressed]) {
buttonImagePressed = [self getImage:buttonProps[kThemeableBrowserPropImagePressed]
altPath:buttonProps[kThemeableBrowserPropWwwImagePressed]
altDensity:[buttonProps[kThemeableBrowserPropWwwImageDensity] doubleValue]];;
if (!buttonImagePressed) {
[self.navigationDelegate emitError:kThemeableBrowserEmitCodeLoadFail
withMessage:[NSString stringWithFormat:@"Pressed image for %@, %@, failed to load.",
description,
buttonProps[kThemeableBrowserPropImagePressed]
? buttonProps[kThemeableBrowserPropImagePressed] : buttonProps[kThemeableBrowserPropWwwImagePressed]]];
}
} else {
[self.navigationDelegate emitWarning:kThemeableBrowserEmitCodeUndefined
withMessage:[NSString stringWithFormat:@"Pressed image for %@ is not defined.", description]];
}
if (buttonImage) {
result = [UIButton buttonWithType:UIButtonTypeCustom];
result.bounds = CGRectMake(0, 0, buttonImage.size.width, buttonImage.size.height);
if (buttonImagePressed) {
[result setImage:buttonImagePressed forState:UIControlStateHighlighted];
result.adjustsImageWhenHighlighted = NO;
}