Initial Upload via GIT

1 files changed, 186 insertions, 0 deletions

diff --git a/CordovaLib/Classes/Public/CDVCommandDelegateImpl.m b/CordovaLib/Classes/Public/CDVCommandDelegateImpl.m
new file mode 100644
index 0000000..fd8b3e8
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+++ b/CordovaLib/Classes/Public/CDVCommandDelegateImpl.m
@@ -0,0 +1,186 @@
+/*
+ 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 "CDVCommandDelegateImpl.h"
+#import "CDVJSON_private.h"
+#import "CDVCommandQueue.h"
+#import "CDVPluginResult.h"
+#import "CDVViewController.h"
+
+@implementation CDVCommandDelegateImpl
+
+@synthesize urlTransformer;
+
+- (id)initWithViewController:(CDVViewController*)viewController
+{
+    self = [super init];
+    if (self != nil) {
+        _viewController = viewController;
+        _commandQueue = _viewController.commandQueue;
+
+        NSError* err = nil;
+        _callbackIdPattern = [NSRegularExpression regularExpressionWithPattern:@"[^A-Za-z0-9._-]" options:0 error:&err];
+        if (err != nil) {
+            // Couldn't initialize Regex
+            NSLog(@"Error: Couldn't initialize regex");
+            _callbackIdPattern = nil;
+        }
+    }
+    return self;
+}
+
+- (NSString*)pathForResource:(NSString*)resourcepath
+{
+    NSBundle* mainBundle = [NSBundle mainBundle];
+    NSMutableArray* directoryParts = [NSMutableArray arrayWithArray:[resourcepath componentsSeparatedByString:@"/"]];
+    NSString* filename = [directoryParts lastObject];
+
+    [directoryParts removeLastObject];
+
+    NSString* directoryPartsJoined = [directoryParts componentsJoinedByString:@"/"];
+    NSString* directoryStr = _viewController.wwwFolderName;
+
+    if ([directoryPartsJoined length] > 0) {
+        directoryStr = [NSString stringWithFormat:@"%@/%@", _viewController.wwwFolderName, [directoryParts componentsJoinedByString:@"/"]];
+    }
+
+    return [mainBundle pathForResource:filename ofType:@"" inDirectory:directoryStr];
+}
+
+- (void)flushCommandQueueWithDelayedJs
+{
+    _delayResponses = YES;
+    [_commandQueue executePending];
+    _delayResponses = NO;
+}
+
+- (void)evalJsHelper2:(NSString*)js
+{
+    CDV_EXEC_LOG(@"Exec: evalling: %@", [js substringToIndex:MIN([js length], 160)]);
+    [_viewController.webViewEngine evaluateJavaScript:js completionHandler:^(id obj, NSError* error) {
+        // TODO: obj can be something other than string
+        if ([obj isKindOfClass:[NSString class]]) {
+            NSString* commandsJSON = (NSString*)obj;
+            if ([commandsJSON length] > 0) {
+                CDV_EXEC_LOG(@"Exec: Retrieved new exec messages by chaining.");
+            }
+
+            [_commandQueue enqueueCommandBatch:commandsJSON];
+            [_commandQueue executePending];
+        }
+    }];
+}
+
+- (void)evalJsHelper:(NSString*)js
+{
+    // Cycle the run-loop before executing the JS.
+    // For _delayResponses -
+    //    This ensures that we don't eval JS during the middle of an existing JS
+    //    function (possible since UIWebViewDelegate callbacks can be synchronous).
+    // For !isMainThread -
+    //    It's a hard error to eval on the non-UI thread.
+    // For !_commandQueue.currentlyExecuting -
+    //     This works around a bug where sometimes alerts() within callbacks can cause
+    //     dead-lock.
+    //     If the commandQueue is currently executing, then we know that it is safe to
+    //     execute the callback immediately.
+    // Using    (dispatch_get_main_queue()) does *not* fix deadlocks for some reason,
+    // but performSelectorOnMainThread: does.
+    if (_delayResponses || ![NSThread isMainThread] || !_commandQueue.currentlyExecuting) {
+        [self performSelectorOnMainThread:@selector(evalJsHelper2:) withObject:js waitUntilDone:NO];
+    } else {
+        [self evalJsHelper2:js];
+    }
+}
+
+- (BOOL)isValidCallbackId:(NSString*)callbackId
+{
+    if ((callbackId == nil) || (_callbackIdPattern == nil)) {
+        return NO;
+    }
+
+    // Disallow if too long or if any invalid characters were found.
+    if (([callbackId length] > 100) || [_callbackIdPattern firstMatchInString:callbackId options:0 range:NSMakeRange(0, [callbackId length])]) {
+        return NO;
+    }
+    return YES;
+}
+
+- (void)sendPluginResult:(CDVPluginResult*)result callbackId:(NSString*)callbackId
+{
+    CDV_EXEC_LOG(@"Exec(%@): Sending result. Status=%@", callbackId, result.status);
+    // This occurs when there is are no win/fail callbacks for the call.
+    if ([@"INVALID" isEqualToString:callbackId]) {
+        return;
+    }
+    // This occurs when the callback id is malformed.
+    if (![self isValidCallbackId:callbackId]) {
+        NSLog(@"Invalid callback id received by sendPluginResult");
+        return;
+    }
+    int status = [result.status intValue];
+    BOOL keepCallback = [result.keepCallback boolValue];
+    NSString* argumentsAsJSON = [result argumentsAsJSON];
+    BOOL debug = NO;
+    
+#ifdef DEBUG
+    debug = YES;
+#endif
+
+    NSString* js = [NSString stringWithFormat:@"cordova.require('cordova/exec').nativeCallback('%@',%d,%@,%d, %d)", callbackId, status, argumentsAsJSON, keepCallback, debug];
+
+    [self evalJsHelper:js];
+}
+
+- (void)evalJs:(NSString*)js
+{
+    [self evalJs:js scheduledOnRunLoop:YES];
+}
+
+- (void)evalJs:(NSString*)js scheduledOnRunLoop:(BOOL)scheduledOnRunLoop
+{
+    js = [NSString stringWithFormat:@"try{cordova.require('cordova/exec').nativeEvalAndFetch(function(){%@})}catch(e){console.log('exception nativeEvalAndFetch : '+e);};", js];
+    if (scheduledOnRunLoop) {
+        [self evalJsHelper:js];
+    } else {
+        [self evalJsHelper2:js];
+    }
+}
+
+- (id)getCommandInstance:(NSString*)pluginName
+{
+    return [_viewController getCommandInstance:pluginName];
+}
+
+- (void)runInBackground:(void (^)())block
+{
+    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), block);
+}
+
+- (NSString*)userAgent
+{
+    return [_viewController userAgent];
+}
+
+- (NSDictionary*)settings
+{
+    return _viewController.settings;
+}
+
+@end