Merge MatrixKit develop with commit hash: b85b736313bec0592bd1cabc68035d97f5331137

Riot/Modules/MatrixKit/Views/RoomInputToolbar/MXKRoomInputToolbarViewWithHPGrowingText.m

@@ -0,0 +1,187 @@
+/*
+ Copyright 2015 OpenMarket Ltd
+ Copyright 2017 Vector Creations Ltd
+ 
+ Licensed 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 "MXKRoomInputToolbarViewWithHPGrowingText.h"
+
+@interface MXKRoomInputToolbarViewWithHPGrowingText()
+{
+    // HPGrowingTextView triggers growingTextViewDidChange event when it recomposes itself
+    // Save the last edited text to prevent unexpected typing events
+    NSString* lastEditedText;
+}
+
+/**
+ Message composer defined in `messageComposerContainer`.
+ */
+@property (nonatomic) IBOutlet HPGrowingTextView *growingTextView;
+
+@end
+
+@implementation MXKRoomInputToolbarViewWithHPGrowingText
+@synthesize growingTextView;
+
++ (UINib *)nib
+{
+    return [UINib nibWithNibName:NSStringFromClass([MXKRoomInputToolbarViewWithHPGrowingText class])
+                          bundle:[NSBundle bundleForClass:[MXKRoomInputToolbarViewWithHPGrowingText class]]];
+}
+
+- (void)awakeFromNib
+{
+    [super awakeFromNib];
+    
+    // Handle message composer based on HPGrowingTextView use
+    growingTextView.delegate = self;
+    
+    [growingTextView setTranslatesAutoresizingMaskIntoConstraints: NO];
+    
+    // Add an accessory view to the text view in order to retrieve keyboard view.
+    inputAccessoryView = [[UIView alloc] initWithFrame:CGRectZero];
+    growingTextView.internalTextView.inputAccessoryView = self.inputAccessoryView;
+    
+    // on IOS 8, the growing textview animation could trigger weird UI animations
+    // indeed, the messages tableView can be refreshed while its height is updated (e.g. when setting a message)
+    growingTextView.animateHeightChange = NO;
+    
+    lastEditedText = nil;
+}
+
+- (void)dealloc
+{
+    [self destroy];
+}
+
+-(void)customizeViewRendering
+{
+    [super customizeViewRendering];
+    
+    // set text input font
+    growingTextView.font = [UIFont systemFontOfSize:14];
+    
+    // draw a rounded border around the textView
+    growingTextView.layer.cornerRadius = 5;
+    growingTextView.layer.borderWidth = 1;
+    growingTextView.layer.borderColor = [UIColor lightGrayColor].CGColor;
+    growingTextView.clipsToBounds = YES;
+    growingTextView.backgroundColor = [UIColor whiteColor];
+}
+
+- (void)destroy
+{
+    if (growingTextView)
+    {
+        growingTextView.delegate = nil;
+        growingTextView = nil;
+    }
+    
+    [super destroy];
+}
+
+- (void)setMaxHeight:(CGFloat)maxHeight
+{
+    growingTextView.maxHeight = maxHeight - (self.messageComposerContainerTopConstraint.constant + self.messageComposerContainerBottomConstraint.constant);
+    [growingTextView refreshHeight];
+    
+    super.maxHeight = maxHeight;
+}
+
+- (NSString*)textMessage
+{
+    return growingTextView.text;
+}
+
+- (void)setTextMessage:(NSString *)textMessage
+{
+    growingTextView.text = textMessage;
+    self.rightInputToolbarButton.enabled = textMessage.length;    
+}
+
+- (void)pasteText:(NSString *)text
+{
+    self.textMessage = [growingTextView.text stringByReplacingCharactersInRange:growingTextView.selectedRange withString:text];
+}
+
+- (void)setPlaceholder:(NSString *)inPlaceholder
+{
+    [super setPlaceholder:inPlaceholder];
+    growingTextView.placeholder = inPlaceholder;
+}
+
+- (BOOL)becomeFirstResponder
+{
+    return [growingTextView becomeFirstResponder];
+}
+
+- (void)dismissKeyboard
+{
+    [growingTextView resignFirstResponder];
+}
+
+#pragma mark - HPGrowingTextView delegate
+
+- (void)growingTextViewDidEndEditing:(HPGrowingTextView *)sender
+{
+    if ([self.delegate respondsToSelector:@selector(roomInputToolbarView:isTyping:)])
+    {
+        [self.delegate roomInputToolbarView:self isTyping:NO];
+    }
+}
+
+- (void)growingTextViewDidChange:(HPGrowingTextView *)sender
+{
+    NSString *msg = growingTextView.text;
+    
+    // HPGrowingTextView triggers growingTextViewDidChange event when it recomposes itself.
+    // Save the last edited text to prevent unexpected typing events
+    if (![lastEditedText isEqualToString:msg])
+    {
+        lastEditedText = msg;
+        if (msg.length)
+        {
+            if ([self.delegate respondsToSelector:@selector(roomInputToolbarView:isTyping:)])
+            {
+                [self.delegate roomInputToolbarView:self isTyping:YES];
+            }
+            self.rightInputToolbarButton.enabled = YES;
+        }
+        else
+        {
+            if ([self.delegate respondsToSelector:@selector(roomInputToolbarView:isTyping:)])
+            {
+                [self.delegate roomInputToolbarView:self isTyping:NO];
+            }
+            self.rightInputToolbarButton.enabled = NO;
+        }
+    }
+}
+
+- (void)growingTextView:(HPGrowingTextView *)growingTextView willChangeHeight:(float)height
+{
+    // Update growing text's superview (toolbar view)
+    CGFloat updatedHeight = height + (self.messageComposerContainerTopConstraint.constant + self.messageComposerContainerBottomConstraint.constant);
+    if ([self.delegate respondsToSelector:@selector(roomInputToolbarView:heightDidChanged:completion:)])
+    {
+        [self.delegate roomInputToolbarView:self heightDidChanged:updatedHeight completion:nil];
+    }
+}
+
+- (BOOL)growingTextView:(HPGrowingTextView *)growingTextView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
+{
+    return self.isEditable;
+}
+
+@end