Add text input to the iOS app

Don't have our View class implement the UIKeyInput protocol any
more. It won't work properly anyway. The docs say: "Only a small
subset of the available keyboards and languages are available to
classes that adopt this protocol".

Instead, use a transparent UITextView on top of our View to accept
keyboard input.

Seems to work as expected.

Change-Id: I3093ea7fbfa0ecab0dc5d0a38e5695723e8ed4ad

ios/experimental/LibreOffice/LibreOffice/AppDelegate.h

@@ -10,12 +10,13 @@
 
 #import "View.h"
 
-@interface AppDelegate : UIResponder <UIApplicationDelegate>
+@interface AppDelegate : UIResponder <UIApplicationDelegate, UITextViewDelegate>
 
 @property (strong, nonatomic) UIWindow *window;
 @property (strong, nonatomic) View *view;
 
-- (void) threadMainMethod: (id) argument;
+- (void)threadMainMethod: (id) argument;
+- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text;
 
 @end
 

ios/experimental/LibreOffice/LibreOffice/AppDelegate.m

@@ -16,7 +16,7 @@
 
 #import "lo.h"
 
-static UIView *theView;
+static View *theView;
 
 @implementation AppDelegate
 
@@ -41,6 +41,12 @@ static UIView *theView;
     vc.view = self.view;
     theView = self.view;
 
+    self.view->textView = [[UITextView alloc] initWithFrame: r];
+    self.view->textView.autocapitalizationType = UITextAutocapitalizationTypeNone;
+    self.view->textView.alpha = 0;
+    [self.view addSubview: self.view->textView];
+    self.view->textView.delegate = self;
+
     UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self.view action:@selector(tapGesture:)];
 
     [self.window addGestureRecognizer: tapRecognizer];
@@ -68,6 +74,17 @@ static UIView *theView;
     }
 }
 
+- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
+{
+    NSLog(@"textView: %@ shouldChangeTextInRange:[%u,%u] replacementText:%@", textView, range.location, range.length, text);
+    assert(textView == theView->textView);
+
+    for (NSUInteger i = 0; i < [text length]; i++)
+        lo_keyboard_input([text characterAtIndex: i]);
+
+    return NO;
+}
+
 - (void)applicationWillResignActive:(UIApplication *)application
 {
     (void) application;
@@ -101,16 +118,17 @@ static UIView *theView;
 
     [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] getValue:&frameBegin];
     [[info objectForKey:UIKeyboardFrameEndUserInfoKey] getValue:&frameEnd];
+
+    NSLog(@"keyboardWillShow: frame:%dx%d@(%d,%d)",
+          (int) frameEnd.size.width, (int) frameEnd.size.height,
+          (int) frameEnd.origin.x, (int) frameEnd.origin.y);
 }
 
 - (void)keyboardDidHide:(NSNotification *)note
 {
-    NSDictionary *info = [note userInfo];
-    CGRect frameBegin;
-    CGRect frameEnd;
+    (void) note;
 
-    [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] getValue:&frameBegin];
-    [[info objectForKey:UIKeyboardFrameEndUserInfoKey] getValue:&frameEnd];
+    NSLog(@"keyboardDidHide");
 
     lo_keyboard_did_hide();
 }
@@ -129,14 +147,14 @@ void lo_damaged(CGRect rect)
 void lo_show_keyboard()
 {
     dispatch_async(dispatch_get_main_queue(), ^{
-            [theView becomeFirstResponder];
+            [theView->textView becomeFirstResponder];
         });
 }
 
 void lo_hide_keyboard()
 {
     dispatch_async(dispatch_get_main_queue(), ^{
-            [theView resignFirstResponder];
+            [theView->textView resignFirstResponder];
         });
 }
 

ios/experimental/LibreOffice/LibreOffice/View.h

@@ -9,8 +9,11 @@
 
 #import <UIKit/UIKit.h>
 
-@interface View : UIView <UIKeyInput>
-
+@interface View : UIView
+{
+@public
+    UITextView* textView;
+}
 - (void)drawRect:(CGRect)rect;
 - (void)tapGesture:(UIGestureRecognizer *)gestureRecognizer;
 

ios/experimental/LibreOffice/LibreOffice/View.m

@@ -34,33 +34,11 @@
         CGPoint location = [gestureRecognizer locationInView: self];
         NSLog(@"tapGesture: at: (%d,%d)", (int)location.x, (int)location.y);
         lo_tap(location.x, location.y);
+        [self->textView becomeFirstResponder];
     } else
         NSLog(@"tapGesture: %@", gestureRecognizer);
 }
 
-- (void)insertText:(NSString *)text
-{
-    (void) text;
-    // Do something with the typed character
-}
-
-- (void)deleteBackward
-{
-    // Handle the delete key
-}
-
-- (BOOL)hasText
-{
-    // Return whether there's any text present
-    return YES;
-}
-
-- (BOOL)canBecomeFirstResponder
-{
-    return YES;
-}
-
-
 @end
 
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