iOS:implement MaxWidth and MaxHeight

doric-iOS/Pod/Classes/Shader/DoricLayouts.h

@@ -88,6 +88,10 @@ typedef NS_ENUM(NSInteger, DoricGravity) {
 
 @property(nonatomic, assign) BOOL disabled;
 
+@property(nonatomic, assign) CGFloat maxWidth;
+
+@property(nonatomic, assign) CGFloat maxHeight;
+
 - (instancetype)init;
 
 - (void)apply;

doric-iOS/Pod/Classes/Shader/DoricLayouts.m

@@ -63,6 +63,8 @@ - (instancetype)init {
     if (self = [super init]) {
         _widthSpec = DoricLayoutJust;
         _heightSpec = DoricLayoutJust;
+        _maxWidth = -1;
+        _maxHeight = -1;
     }
     return self;
 }
@@ -91,6 +93,25 @@ - (void)measure:(CGSize)targetSize {
     [self measureContent:CGSizeMake(
             self.measuredWidth - self.paddingLeft - self.paddingRight,
             self.measuredHeight - self.paddingTop - self.paddingBottom)];
+
+    BOOL needRemeasure = NO;
+    if (self.maxWidth >= 0) {
+        if (self.measuredWidth > self.maxWidth) {
+            self.measuredWidth = self.maxWidth;
+            needRemeasure = YES;
+        }
+    }
+    if (self.maxHeight > 0) {
+        if (self.measuredHeight > self.maxHeight) {
+            self.measuredHeight = self.maxHeight;
+            needRemeasure = YES;
+        }
+    }
+    if (needRemeasure) {
+        [self measureContent:CGSizeMake(
+                self.measuredWidth - self.paddingLeft - self.paddingRight,
+                self.measuredHeight - self.paddingTop - self.paddingBottom)];
+    }
     self.resolved = YES;
 }
 

doric-iOS/Pod/Classes/Shader/DoricTextNode.m

@@ -26,8 +26,6 @@
 #import "Doric.h"
 
 @interface DoricTextView : UILabel
-@property(nonatomic, assign) CGFloat maxWidth;
-@property(nonatomic, assign) CGFloat maxHeight;
 @end
 
 @implementation DoricTextView
@@ -50,8 +48,6 @@ @implementation DoricTextNode
 - (UILabel *)build {
     return [[[DoricTextView alloc] init] also:^(DoricTextView *it) {
         it.textAlignment = NSTextAlignmentCenter;
-        it.maxWidth = -1;
-        it.maxHeight = -1;
     }];
 }
 
@@ -109,13 +105,9 @@ - (void)blendView:(UILabel *)view forPropName:(NSString *)name propValue:(id)pro
         }
         view.font = font;
     } else if ([name isEqualToString:@"maxWidth"]) {
-        if ([view isKindOfClass:DoricTextView.class]) {
+        view.doricLayout.maxWidth = [prop floatValue];
-            ((DoricTextView *) view).maxWidth = [prop floatValue];
-        }
     } else if ([name isEqualToString:@"maxHeight"]) {
-        if ([view isKindOfClass:DoricTextView.class]) {
+        view.doricLayout.maxHeight = [prop floatValue];
-            ((DoricTextView *) view).maxHeight = [prop floatValue];
-        }
     } else if ([name isEqualToString:@"font"]) {
         NSString *iconfont = prop;
         UIFont *font = [UIFont fontWithName:iconfont size:view.font.pointSize];